Tag Archives: farm tractor

China wholesaler CE Certificate Tk 100HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with Free Design Custom

Product Description

Product Description:
TLK TD1004 90-130HP 4WD Wheel Agricultural Farm Tractor China big wheeled farming tractor with ISO Ce Certificate for Sale

Tractor Main Features and Advantages:
1.Equipped famous brand engine showing advanced capacity,low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly,reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment

 

Main Technical Specifications:

Model  TK1004 TK1104 TK1204 TK1304
Type   4×4 Wheeled Type   4×4 Wheeled Type   4×4 Wheeled Type   4×4 Wheeled Type
Dimensions of Tractor (mm)  Length 4480 4480 4480 4480
Width 2050 2050 2050 2050
Height 2570 2570 2570 2570
Tread Front Wheel 1610(usual) 1610(usual) 1610(usual) 1610(usual)
Rear Wheel 1608(usual) 1608(usual) 1608(usual) 1608(usual)
 Wheel Base 2366 2366 2366 2366
Min. Ground Base 405(the bottom of front axle) 405(the bottom of front axle) 405(the bottom of front axle) 405(the bottom of front axle)
Min. Usage Mass(kg) 4200 4200 4200 4200
Engine Model YTO LR4M3Z YTO LR4M3Z YTO LR6B5-23 YTO LR6M5-23
Type Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke
 Rated Power(kw) 66.2 80.8 88.2 95.6
Rated Rev.(r/min) 2300 2300 2300 2300
 Fuel Diesel Oil Diesel Oil Diesel Oil  Diesel Oil
 Tire Front Wheel 12.4-24 12.4-24 12.4-24 12.4-24
Rear Wheel 16.9-34 16.9-34 16.9-34 16.9-34
 Clutch Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage
Steering  Hydraulic type  Hydraulic type  Hydraulic type  Hydraulic type
Transmission Box 4×(2+1)×2 Composed 4×(2+1)×2 Composed 4×(2+1)×2 Composed 4×(2+1)×2 Composed
 Suspension Type Post Positioned Tri-point Suspension Catalogue 2 or 3  (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional)
PTO Type and Rev.(r/min) Post-position, independent,
760/850 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/850 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/1000 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/1000 or 540/1000 or 540/760 (optioanl)
Spline Size I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth

Technology & Innovation:

WeiFang Telake has established a professional R & D team, realized the self-control ability of core components by integrating the industry’s
advantageous resources, built a stable quality control system.
Invested tens millions to introduce intelligent mechanization total production line, automatic chassis production line, gearbox processing line and welding
robots, processing centers and other advanced production lines and equipment, to achieve an annual production capacity of 30,000 tractors.

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Packaging & Delivery:
-Delivery time:20- 30 days.

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Certifications:

Common problems
(1) Are you a manufacturing factory or a trading company?
We are a factory with 20 years of professional production experience in the field of 25hp-240hp tractors, located in HangZhou City, ZheJiang Province, China. Our factory has passed ISO9001, CCC, CE, SGS and BV certification. We also have a quality control department to purchase products for customers. This is why the price of our tractors is so reasonable.
(2) Can we print the logo or company name on your product or packaging?
of course. Your logo can be printed on your product by embossing, self-adhesive or silk-screen printing.
(3) About the price
The price is negotiable. It can be changed according to the options or packaging of the tractor.
(4) Regarding payment or other issues
We accept LC, TT, if you have other questions, please email me or chat with me directly.
Contact
Welcome to our factory
Adhere to the business tenet of “Integrity-based, Quality First”, and wholeheartedly provide you with the best products and wholehearted service. We actively cooperate with research institutions and multinational companies to achieve continuous innovation. HangZhou Telake Agricultural Equipment CO.,LTD welcomes domestic and foreign customers to visit and guide!
HangZhou Telake Agricultural Equipment CO.,LTD
Adress: East of Xihu (West Lake) Dis. Road,South of Cailin Road,Xihu (West Lake) Dis. Economic District,HangZhou,ZheJiang ,China

 

What Are the Advantages of a Splined Shaft?

If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts

When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
splineshaft

They provide low noise, low wear and fatigue failure

The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
splineshaft

They can be machined using a slotting or shaping machine

Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.

China wholesaler CE Certificate Tk 100HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with Free Design CustomChina wholesaler CE Certificate Tk 100HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with Free Design Custom

China Professional Hot Sale Dq554G 55HP 4X4 4WD Midsize Agricultural Wheel Farm Tractor with Ce Certificate near me manufacturer

Product Description

Hot sale DQ554G 55HP 4×4 4WD midsize  Agricultural Wheel farm tractor with CE certificate

Tractor Main Features and Advantages:

1.Equipped famous brand engine showing advanced capacity, low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly, reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment.

Tractor Main specificaiton and Technical parameters:

Tractor Model  DQ554G
Drive type 4×4, 4WD wheel type
Engine
Engine model  Yuchai 4105 Model, 4 cylinder, diesel engine
Capacity of fuel tank(L) 80
Rated speed (r/min) 2300
Engine power 40.5kw/55HP
Steering Hydraulic steering
Transmission
Clutch Dry,dual-stage type
PTO Speed(rpm) Dual speed 540/760
Gearshift  8F+8R(common) or 12F+12R(option) shuttle gearshift
Hydraulic system
Hydraulic output valve 2-Group (optional)
Three point linkage
Category of 3-point link Category I
Lifting capacity @610mm point (KN) 13
Technical parameter
Dimension LxWxH (mm) 3593*1850*2568
Wheel base(mm) 2040
Track base(mm) front wheel  1250-1350
Track base(mm) rear wheel  1300-1500
The smallest clearance(mm) 370
Front tyre  8.3-20
Rear tyre  11-32
Weight(kg) 2500
Optional Configuration
Fan cabin, Heater cabin, Air-conditioning cabin, ROPS, Canopy(Sunshade), Front ballast, Rear ballast, 2-Group Hydraulic output valve,12F+12R Shuttle gearshift, Paddy tyres F8.3-20/R11-32, R1 tyres F9.5-20/R14.9-28, Air brake, Swing draw bar
Loading Quantity 3 sets/40HC in Nude packing for CUB shipping

DQ554G 55HP 4WD Tractor have different configurations for choose :

DQ554G 55HP 4WD Tractor details show :

Advance Manufacutring Line:

Strictly Inspecting and Full Testing for ensuring high quality product:

Various Packing and Transporting models to meet different customers demand :

Best price will be quoted for you as soon as receive your Requirement !

The Functions of Splined Shaft Bearings

Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

Functions

Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
splineshaft

Types

There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
splineshaft

Manufacturing methods

There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
splineshaft

Applications

The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

China Professional Hot Sale Dq554G 55HP 4X4 4WD Midsize Agricultural Wheel Farm Tractor with Ce Certificate near me manufacturer China Professional Hot Sale Dq554G 55HP 4X4 4WD Midsize Agricultural Wheel Farm Tractor with Ce Certificate near me manufacturer

China Hot selling Hot Sale Discount 50HP 70HP China Agriculture Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me supplier

Product Description

.

1. Our wheel tractors rank first in sales in China.

2. 20 years of export experience.

3. 30 years tractor production engineer.


 

Model                                 TK704
Machine parameters Type 4×4
Rated Traction( KN) 16.2
PTO Max Power (KW) 43.8
Dimensions(mm) 3560×1650×2350
Wheelbase(mm) 1965

Track(mm)

 Front wheel(mm) 1150
Rear wheel(mm) 1200-1360
 Ground clearance(mm) Minimum ground clearance(mm) 330
  Use unilateral braking 2.85±0.20
  Not unilateral braking 3.15±0.30
Minimum use quality 1660
Gearbox 8F+8R Shuttle Shift
Steering System  hydraulic steering gear
Drive Train Clutch double acting clutch
Working equipment Maximum lifting force at 610mm(KN) ≥10
Suspension mechanism Three-piont suspension type 1
PTO shaft PTO Spedd(r/min) 540/760(option: 540/1000)
Tire Front wheel specifications 6.00-16/6.5-16/7.5-16
Rear wheel specifications 9.5-24/11.2-24/12.4-24
Engine Type Inline, 4 stroke, Water cooled
Cylinder 4

Optional

 Cabin AC/Heater
Roll bar
Canopy

Perfusion volume

 Radiater(L) 10
Fuel tank(L) 29
Engine oil pan(L) 5
Driveline oil (L) 20
Lifter(L) 9.5
This parameter table is for reference only, everything is based on actual products
 

50HP-70HP(8F+8R) Series Tractors
*Flat floor,8+8 shuttle shift,side-mounted gear,convenient and flexible operation, multiple gear selections, and strong adaptability.
*Fully sealed front axle, with good sealing performance, preventing mud and water ingress, both flood and drought. *Achieve a narrow wheelbase, adjustable from 0.96-1.2 meters, and a wider range of adaptation. *Double clutch,separate operation of driving and power output, more suitable for sowing and receiving use. *Rear-mounted, central-mounted cylinder front axle,the left and right turning radius are the same, flexible and convenient. *Standard configuration with 2 sets of 2 way valves to meet the needs of different agricultural machinery. *Optional air brake device to meet the needs of road transportation.

Engine
* 4 cylinder turbocharged diesel engine, Powerful and easy to maintain.
* Could choose china famous brand engine, Xichai, YTO, Xinchai etc.
* Low fuel consumption and large torque reserve.
* Cooling system effectively reduce engine temperature.

Cabin inside
* The 4-post cabin allows the driver to have a wider field of vision.
* Flat floor design is free and comfortable.
* Steering
wheel with direction ball makes it easier to operate.
* Shuttle shift makes forward and backward clear at a glance.
* Shock absorption seats, driving on bumpy roads will not have too much shock.

Lifter
* Hydraulic lifter, greater lifting force, the downward pressure is more powerful, which can better press agricultural machinery into the soil.
* 2 groups hydraulic output, can be connected to agricultural machinery using hydraulic oil.
* 3-point lift power 1050kg.
 

The Benefits of Spline Couplings for Disc Brake Mounting Interfaces

Spline couplings are commonly used for securing disc brake mounting interfaces. Spline couplings are often used in high-performance vehicles, aeronautics, and many other applications. However, the mechanical benefits of splines are not immediately obvious. Listed below are the benefits of spline couplings. We’ll discuss what these advantages mean for you. Read on to discover how these couplings work.

Disc brake mounting interfaces are splined

There are 2 common disc brake mounting interfaces – splined and six-bolt. Splined rotors fit on splined hubs; six-bolt rotors will need an adapter to fit on six-bolt hubs. The six-bolt method is easier to maintain and may be preferred by many cyclists. If you’re thinking of installing a disc brake system, it is important to know how to choose the right splined and center lock interfaces.
splineshaft

Aerospace applications

The splines used for spline coupling in aircraft are highly complex. While some previous researches have addressed the design of splines, few publications have tackled the problem of misaligned spline coupling. Nevertheless, the accurate results we obtained were obtained using dedicated simulation tools, which are not commercially available. Nevertheless, such tools can provide a useful reference for our approach. It would be beneficial if designers could use simple tools for evaluating contact pressure peaks. Our analytical approach makes it possible to find answers to such questions.
The design of a spline coupling for aerospace applications must be accurate to minimize weight and prevent failure mechanisms. In addition to weight reduction, it is necessary to minimize fretting fatigue. The pressure distribution on the spline coupling teeth is a significant factor in determining its fretting fatigue. Therefore, we use analytical and experimental methods to examine the contact pressure distribution in the axial direction of spline couplings.
The teeth of a spline coupling can be categorized by the type of engagement they provide. This study investigates the position of resultant contact forces in the teeth of a spline coupling when applied to pitch diameter. Using FEM models, numerical results are generated for nominal and parallel offset misalignments. The axial tooth profile determines the behavior of the coupling component and its ability to resist wear. Angular misalignment is also a concern, causing misalignment.
In order to assess wear damage of a spline coupling, we must take into consideration the impact of fretting on the components. This wear is caused by relative motion between the teeth that engage them. The misalignment may be caused by vibrations, cyclical tooth deflection, or angular misalignment. The result of this analysis may help designers improve their spline coupling designs and develop improved performance.
CZPT polyimide, an abrasion-resistant polymer, is a popular choice for high-temperature spline couplings. This material reduces friction and wear, provides a low friction surface, and has a low wear rate. Furthermore, it offers up to 50 times the life of metal on metal spline connections. For these reasons, it is important to choose the right material for your spline coupling.
splineshaft

High-performance vehicles

A spline coupler is a device used to connect splined shafts. A typical spline coupler resembles a short pipe with splines on either end. There are 2 basic types of spline coupling: single and dual spline. One type attaches to a drive shaft, while the other attaches to the gearbox. While spline couplings are typically used in racing, they’re also used for performance problems.
The key challenge in spline couplings is to determine the optimal dimension of spline joints. This is difficult because no commercial codes allow the simulation of misaligned joints, which can destroy components. This article presents analytical approaches to estimating contact pressures in spline connections. The results are comparable with numerical approaches but require special codes to accurately model the coupling operation. This research highlights several important issues and aims to make the application of spline couplings in high-performance vehicles easier.
The stiffness of spline assemblies can be calculated using tooth-like structures. Such splines can be incorporated into the spline joint to produce global stiffness for torsional vibration analysis. Bearing reactions are calculated for a certain level of misalignment. This information can be used to design bearing dimensions and correct misalignment. There are 3 types of spline couplings.
Major diameter fit splines are made with tightly controlled outside diameters. This close fit provides concentricity transfer from the male to the female spline. The teeth of the male spline usually have chamfered tips and clearance with fillet radii. These splines are often manufactured from billet steel or aluminum. These materials are renowned for their strength and uniform grain created by the forging process. ANSI and DIN design manuals define classes of fit.
splineshaft

Disc brake mounting interfaces

A spline coupling for disc brake mounting interfaces is a type of hub-to-brake-disc mount. It is a highly durable coupling mechanism that reduces heat transfer from the disc to the axle hub. The mounting arrangement also isolates the axle hub from direct contact with the disc. It is also designed to minimize the amount of vehicle downtime and maintenance required to maintain proper alignment.
Disc brakes typically have substantial metal-to-metal contact with axle hub splines. The discs are held in place on the hub by intermediate inserts. This metal-to-metal contact also aids in the transfer of brake heat from the brake disc to the axle hub. Spline coupling for disc brake mounting interfaces comprises a mounting ring that is either a threaded or non-threaded spline.
During drag brake experiments, perforated friction blocks filled with various additive materials are introduced. The materials included include Cu-based powder metallurgy material, a composite material, and a Mn-Cu damping alloy. The filling material affects the braking interface’s wear behavior and friction-induced vibration characteristics. Different filling materials produce different types of wear debris and have different wear evolutions. They also differ in their surface morphology.
Disc brake couplings are usually made of 2 different types. The plain and HD versions are interchangeable. The plain version is the simplest to install, while the HD version has multiple components. The two-piece couplings are often installed at the same time, but with different mounting interfaces. You should make sure to purchase the appropriate coupling for your vehicle. These interfaces are a vital component of your vehicle and must be installed correctly for proper operation.
Disc brakes use disc-to-hub elements that help locate the forces and displace them to the rim. These elements are typically made of stainless steel, which increases the cost of manufacturing the disc brake mounting interface. Despite their benefits, however, the high braking force loads they endure are hard on the materials. Moreover, excessive heat transferred to the intermediate elements can adversely affect the fatigue life and long-term strength of the brake system.

China Hot selling Hot Sale Discount 50HP 70HP China Agriculture Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me supplier China Hot selling Hot Sale Discount 50HP 70HP China Agriculture Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me supplier

China OEM Dq654G China Tractor Manufacturer Sell 65HP 4WD Agricultural Farm Tractor with Cabin near me manufacturer

Product Description

DQ654G  China tractor manufacturer sell 65HP 4WD Agricultural Farm Tractor with Cabin

Tractor Main Features and Advantages:

1.Equipped famous brand engine showing advanced capacity,low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly,reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment. 

Tractor Main specificaiton and Technical parameters:

Tractor Model  DQ654G
Drive type 4×4
Engine
Engine model  Yuchai 4105 Model, 4 cylinder, diesel engine
Capacity of fuel tank(L) 80
Rated speed (r/min) 2300
Engine power 47.8kw/65HP
Steering Hydraulic steering
Transmission
Clutch Dry,dual-stage type
PTO Speed(rpm) Dual speed 540/760
Gearshift  8F+8R/12F+12R shuttle gearshift
Hydraulic system
Hydraulic output valve 2-Group (optional)
Three point linkage
Category of 3-point link Category I
Lifting capacity @610mm point (KN) 13
Technical parameter
Dimension LxWxH (mm) 3593*1850*2568
Wheel base(mm) 2040
Track base(mm) front wheel  1250-1350
Track base(mm) rear wheel  1300-1500
The smallest clearance(mm) 370
Front tyre  8.3-20
Rear tyre  11-32
Weight(kg) 2550
Optional Configuration
Fan cabin, Heater cabin,Air-conditioned cabin, ROPS,Canopy(Sunshade),Front ballast, Rear ballast, 2-Group Hydraulic output valve,8F+8F Shuttle gearshift,Paddy tyres,Air brake,Swing draw bar
Loading Quantity 1 set/20ft container, 3 sets/40HC in Nude packing

DQ654G Tractor details show :

DQ654G 65HP 4WD Tractor have various Optional configurations for choose:

Advance Manufacutring Line:

Strictly Inspecting and Full Testing for ensuring high quality product:

Customlized Tractor Packing and Transporting service to meet different customers demand

Please Contact us if you have any demand for our Product,

Best price will be quoted for you as soon as receive your Requirement !

 

Standard Length Splined Shafts

Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
splineshaft

Disc brake mounting interfaces that are splined

There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
splineshaft

Disc brake mounting interfaces that are helical splined

A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.

China OEM Dq654G China Tractor Manufacturer Sell 65HP 4WD Agricultural Farm Tractor with Cabin near me manufacturer China OEM Dq654G China Tractor Manufacturer Sell 65HP 4WD Agricultural Farm Tractor with Cabin near me manufacturer

China Standard Hot Sale Discount 50HP 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me manufacturer

Product Description

.

1. Our wheel tractors rank first in sales in China.

2. 20 years of export experience.

3. 30 years tractor production engineer.


 

Model                                 TK704
Machine parameters Type 4×4
Rated Traction( KN) 16.2
PTO Max Power (KW) 43.8
Dimensions(mm) 3560×1650×2350
Wheelbase(mm) 1965

Track(mm)

 Front wheel(mm) 1150
Rear wheel(mm) 1200-1360
 Ground clearance(mm) Minimum ground clearance(mm) 330
  Use unilateral braking 2.85±0.20
  Not unilateral braking 3.15±0.30
Minimum use quality 1660
Gearbox 8F+8R Shuttle Shift
Steering System  hydraulic steering gear
Drive Train Clutch double acting clutch
Working equipment Maximum lifting force at 610mm(KN) ≥10
Suspension mechanism Three-piont suspension type 1
PTO shaft PTO Spedd(r/min) 540/760(option: 540/1000)
Tire Front wheel specifications 6.00-16/6.5-16/7.5-16
Rear wheel specifications 9.5-24/11.2-24/12.4-24
Engine Type Inline, 4 stroke, Water cooled
Cylinder 4

Optional

 Cabin AC/Heater
Roll bar
Canopy

Perfusion volume

 Radiater(L) 10
Fuel tank(L) 29
Engine oil pan(L) 5
Driveline oil (L) 20
Lifter(L) 9.5
This parameter table is for reference only, everything is based on actual products
 

50HP-70HP(8F+8R) Series Tractors
*Flat floor,8+8 shuttle shift,side-mounted gear,convenient and flexible operation, multiple gear selections, and strong adaptability.
*Fully sealed front axle, with good sealing performance, preventing mud and water ingress, both flood and drought. *Achieve a narrow wheelbase, adjustable from 0.96-1.2 meters, and a wider range of adaptation. *Double clutch,separate operation of driving and power output, more suitable for sowing and receiving use. *Rear-mounted, central-mounted cylinder front axle,the left and right turning radius are the same, flexible and convenient. *Standard configuration with 2 sets of 2 way valves to meet the needs of different agricultural machinery. *Optional air brake device to meet the needs of road transportation.

Engine
* 4 cylinder turbocharged diesel engine, Powerful and easy to maintain.
* Could choose china famous brand engine, Xichai, YTO, Xinchai etc.
* Low fuel consumption and large torque reserve.
* Cooling system effectively reduce engine temperature.

Cabin inside
* The 4-post cabin allows the driver to have a wider field of vision.
* Flat floor design is free and comfortable.
* Steering
wheel with direction ball makes it easier to operate.
* Shuttle shift makes forward and backward clear at a glance.
* Shock absorption seats, driving on bumpy roads will not have too much shock.

Lifter
* Hydraulic lifter, greater lifting force, the downward pressure is more powerful, which can better press agricultural machinery into the soil.
* 2 groups hydraulic output, can be connected to agricultural machinery using hydraulic oil.
* 3-point lift power 1050kg.
 

Analytical Approaches to Estimating Contact Pressures in Spline Couplings

A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
splineshaft

Modeling a spline coupling

Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.

Creating a spline coupling model 20

The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
splineshaft

Analysing a spline coupling model 20

An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
splineshaft

Misalignment of a spline coupling

A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.

China Standard Hot Sale Discount 50HP 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me manufacturer China Standard Hot Sale Discount 50HP 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe near me manufacturer

China factory Hot Sale Discount 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe with Hot selling

Product Description

.

1. Our wheel tractors rank first in sales in China.

2. 20 years of export experience.

3. 30 years tractor production engineer.


 

Model                                 TK704
Machine parameters Type 4×4
Rated Traction( KN) 16.2
PTO Max Power (KW) 43.8
Dimensions(mm) 3560×1650×2350
Wheelbase(mm) 1965

Track(mm)

 Front wheel(mm) 1150
Rear wheel(mm) 1200-1360
 Ground clearance(mm) Minimum ground clearance(mm) 330
  Use unilateral braking 2.85±0.20
  Not unilateral braking 3.15±0.30
Minimum use quality 1660
Gearbox 8F+8R Shuttle Shift
Steering System  hydraulic steering gear
Drive Train Clutch double acting clutch
Working equipment Maximum lifting force at 610mm(KN) ≥10
Suspension mechanism Three-piont suspension type 1
PTO shaft PTO Spedd(r/min) 540/760(option: 540/1000)
Tire Front wheel specifications 6.00-16/6.5-16/7.5-16
Rear wheel specifications 9.5-24/11.2-24/12.4-24
Engine Type Inline, 4 stroke, Water cooled
Cylinder 4

Optional

 Cabin AC/Heater
Roll bar
Canopy

Perfusion volume

 Radiater(L) 10
Fuel tank(L) 29
Engine oil pan(L) 5
Driveline oil (L) 20
Lifter(L) 9.5
This parameter table is for reference only, everything is based on actual products
 

50HP-70HP(8F+8R) Series Tractors
*Flat floor,8+8 shuttle shift,side-mounted gear,convenient and flexible operation, multiple gear selections, and strong adaptability.
*Fully sealed front axle, with good sealing performance, preventing mud and water ingress, both flood and drought. *Achieve a narrow wheelbase, adjustable from 0.96-1.2 meters, and a wider range of adaptation. *Double clutch,separate operation of driving and power output, more suitable for sowing and receiving use. *Rear-mounted, central-mounted cylinder front axle,the left and right turning radius are the same, flexible and convenient. *Standard configuration with 2 sets of 2 way valves to meet the needs of different agricultural machinery. *Optional air brake device to meet the needs of road transportation.

Engine
* 4 cylinder turbocharged diesel engine, Powerful and easy to maintain.
* Could choose china famous brand engine, Xichai, YTO, Xinchai etc.
* Low fuel consumption and large torque reserve.
* Cooling system effectively reduce engine temperature.

Cabin inside
* The 4-post cabin allows the driver to have a wider field of vision.
* Flat floor design is free and comfortable.
* Steering
wheel with direction ball makes it easier to operate.
* Shuttle shift makes forward and backward clear at a glance.
* Shock absorption seats, driving on bumpy roads will not have too much shock.

Lifter
* Hydraulic lifter, greater lifting force, the downward pressure is more powerful, which can better press agricultural machinery into the soil.
* 2 groups hydraulic output, can be connected to agricultural machinery using hydraulic oil.
* 3-point lift power 1050kg.
 

The Functions of Splined Shaft Bearings

Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

Functions

Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
splineshaft

Types

There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
splineshaft

Manufacturing methods

There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
splineshaft

Applications

The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

China factory Hot Sale Discount 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe with Hot sellingChina factory Hot Sale Discount 70HP China Agricultural Machine Manufacturer 4WD Small Compact Garden Cheap Wheel Mini Farm Tractor with Front End Loader and Backhoe with Hot selling

China Custom Durable Farm Machine Dq904 90HP 4WD Farm Tractor with Rops for Sale with high quality

Product Description

Durable farm machine DQ904 90HP 4WD Farm Tractor with ROPS for sale

Tractor Main Features and Advantages:
1.Equipped famous brand engine showing advanced capacity,low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly,reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment. 

Tractor Main specificaiton and Technical parameters:

Model DQ900 DQ904 DQ950 DQ954
Drive type  4×2 4×4 4×2 4×4
Engine
Engine type YTO or CZPT brand, 4 or 6 cylinder diesel engine
Capacity of fuel tank(L) 150 150 150 150
Rated speed (r/min) 2300
Engine power at rated speed(kw/hp) 66.2kw/90HP 69.8kw/95HP
Transmission
Clutch Dry, dual-stage type
PTO Speed (rpm) 540/1000 or 760/1000
Gearshift 8F+4R/16F+8R(optional)/8F+8R(optional)
Hydraulic system
Hydraulic output valve 2-Group (optional)
Three point linkage 
Category of 3-point link Category II
Lifting force (at point of 610mm)KN >15 >16 >15 >16
Technical parameter
Dimension (LxWxH) (mm) 4593x2050x2810
Wheel base(mm) 2362 2195 2362 2195
Track base(mm) front wheel 1485 1610 1485 1610
Track base(mm) rear wheel 1620
The smallest clearance(mm) 476 379 476 379
Front tyre 6.5-20 11.2-24 6.5-20 11.2-24
Rear tyre 16.9-34(common)/18.4-30(optional)
Optional Configurations
Common cabin with Fan; Heater cabin; AC cabin; ROPS; Canopy (Sunshade); 8F+8R shuttle gearshift, 16F+4R creeper gearshift, 2-Group Hydraulic output valve; Front ballast, Rear ballast; Paddy tire, 18.4-30 big rear tire, 6 cylinder diesel engine, Heavy-duty rear, Air brake, Swing draw bar
Loading Quantity/40HC 3 Sets in Nude packing for CBU shipping

DQ904 90HP 4WD Tractor details  show :

DQ904 90HP 4WD Tractor have different configurations for choose :


Advance Manufacutring Line:

Tractor Packing and Loading container for Delivering goods :

Perfect after-sale service for both Distributors and Private customers:

Please contact us if you have any demand for our Product  :

 

Best price will be quoted for you as soon as receive your Requirement !

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
splineshaft

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
splineshaft

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
splineshaft

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

China Custom Durable Farm Machine Dq904 90HP 4WD Farm Tractor with Rops for Sale with high qualityChina Custom Durable Farm Machine Dq904 90HP 4WD Farm Tractor with Rops for Sale with high quality

China Professional CE Certificate Tlk 1304HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with high quality

Product Description

Product Description:
TLK TD1004 90-130HP 4WD Wheel Agricultural Farm Tractor China big wheeled farming tractor with ISO Ce Certificate for Sale

Tractor Main Features and Advantages:
1.Equipped famous brand engine showing advanced capacity,low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly,reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment

 

Main Technical Specifications:

Model  TK1004 TK1104 TK1204 TK1304
Type   4×4 Wheeled Type   4×4 Wheeled Type   4×4 Wheeled Type   4×4 Wheeled Type
Dimensions of Tractor (mm)  Length 4480 4480 4480 4480
Width 2050 2050 2050 2050
Height 2570 2570 2570 2570
Tread Front Wheel 1610(usual) 1610(usual) 1610(usual) 1610(usual)
Rear Wheel 1608(usual) 1608(usual) 1608(usual) 1608(usual)
 Wheel Base 2366 2366 2366 2366
Min. Ground Base 405(the bottom of front axle) 405(the bottom of front axle) 405(the bottom of front axle) 405(the bottom of front axle)
Min. Usage Mass(kg) 4200 4200 4200 4200
Engine Model YTO LR4M3Z YTO LR4M3Z YTO LR6B5-23 YTO LR6M5-23
Type Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke Vertical, water cooled and 4-stroke
 Rated Power(kw) 66.2 80.8 88.2 95.6
Rated Rev.(r/min) 2300 2300 2300 2300
 Fuel Diesel Oil Diesel Oil Diesel Oil  Diesel Oil
 Tire Front Wheel 12.4-24 12.4-24 12.4-24 12.4-24
Rear Wheel 16.9-34 16.9-34 16.9-34 16.9-34
 Clutch Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage Dry-friction, single disc and 2 stage
Steering  Hydraulic type  Hydraulic type  Hydraulic type  Hydraulic type
Transmission Box 4×(2+1)×2 Composed 4×(2+1)×2 Composed 4×(2+1)×2 Composed 4×(2+1)×2 Composed
 Suspension Type Post Positioned Tri-point Suspension Catalogue 2 or 3  (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional) Post Positioned Tri-point Suspension Catalogue 2 or 3 (optional)
PTO Type and Rev.(r/min) Post-position, independent,
760/850 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/850 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/1000 or 540/1000 or 540/760 (optioanl)		 Post-position, independent,
760/1000 or 540/1000 or 540/760 (optioanl)
Spline Size I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth I38 Rectangle Spline with 8 teeth

Technology & Innovation:

WeiFang Telake has established a professional R & D team, realized the self-control ability of core components by integrating the industry’s
advantageous resources, built a stable quality control system.
Invested tens millions to introduce intelligent mechanization total production line, automatic chassis production line, gearbox processing line and welding
robots, processing centers and other advanced production lines and equipment, to achieve an annual production capacity of 30,000 tractors.

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Packaging & Delivery:
-Delivery time:20- 30 days.

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Certifications:

Common problems
(1) Are you a manufacturing factory or a trading company?
We are a factory with 20 years of professional production experience in the field of 25hp-240hp tractors, located in HangZhou City, ZheJiang Province, China. Our factory has passed ISO9001, CCC, CE, SGS and BV certification. We also have a quality control department to purchase products for customers. This is why the price of our tractors is so reasonable.
(2) Can we print the logo or company name on your product or packaging?
of course. Your logo can be printed on your product by embossing, self-adhesive or silk-screen printing.
(3) About the price
The price is negotiable. It can be changed according to the options or packaging of the tractor.
(4) Regarding payment or other issues
We accept LC, TT, if you have other questions, please email me or chat with me directly.
Contact
Welcome to our factory
Adhere to the business tenet of “Integrity-based, Quality First”, and wholeheartedly provide you with the best products and wholehearted service. We actively cooperate with research institutions and multinational companies to achieve continuous innovation. HangZhou Telake Agricultural Equipment CO.,LTD welcomes domestic and foreign customers to visit and guide!
HangZhou Telake Agricultural Equipment CO.,LTD
Adress: East of Xihu (West Lake) Dis. Road,South of Cailin Road,Xihu (West Lake) Dis. Economic District,HangZhou,ZheJiang ,China

 

The Functions of Splined Shaft Bearings

Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

Functions

Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.
splineshaft

Types

There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.
splineshaft

Manufacturing methods

There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.
splineshaft

Applications

The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.

China Professional CE Certificate Tlk 1304HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with high qualityChina Professional CE Certificate Tlk 1304HP Farm Machine Mini Tractor Like John Deere 4weel CZPT with Agriculture Power Tiller Agricultural Machinery for Farm with high quality

China factory Zambia Hot Sale Farm Machinery Dq1504 150HP Yto Engine 4WD Agriculture Wheel Farming Tractor with Canopy wholesaler

Product Description

Zambia hot sale Farm machinery DQ1504 150HP YTO engine 4WD Agriculture wheel Farming Tractor with Canopy

Tractor Main Features and Advantages:

1.Equipped famous brand engine showing advanced capacity,low fuel consumption,high economic efficiency.
2. Streamlined appearance design, beautiful and generous.
3.Transmission Case adopt meshed shift and add the gearbox interlock device makes the operation more smoothly,reliable and easier.
4. Double action clutch with disc spring, perform steadily and easy to operate.
5. Fully hydraulic steering system greatly reduced driver’s work strength.
6. Wet disc brake device, reliable brake performance.
7. Separate injection of hydraulic oil, reliable to operate.
8. The lifter with force and position adjustment, with reliable lift.
9. Tractor PTO:
PTO in Double speed : 540/760r/min Optional, For high working efficiency.
PTO shaft of 6 or 8 spline Optional, adaptable for agricultural equipment of all over the world.
10. Big Chassis and Heavy-duty Rear axle for Durable Strong machine.
11. Full series light, ROPS,Sunshade/Canopy, Fan/Heater/Air-conditioned cabin are all available, for more comfortable driving environment. 

Tractor Main specificaiton and Technical parameters:

Model DQ1504
Drive type  4×4, 4WD wheel type
Engine
Engine brand and model YTO brand, diesel engine Model LR6M3Z-23
Type   In-line, direct injection,Water cooling, 4 stroke,6-cylinder
Aspiration way Turbo
Engine power at rated speed 110.3kw/150HP
Rated Power of PTO 94 KW
Max. traction Force (KN) 32.5
Displacement(L) 7.13
Compression ratio 18:1
Rated speed (r/min) 2300
Lowest fuel consumption (g/kw.h) ≤210
Cylinder·Bore·Stroke 6-110×125
Fuel tank capacity (L) 350
Muffler Dimension (Dia.×Length) (mm) φ600×295×140
Muffler weight (kg) 7.2
Steering type Full Hydraulic steering
Transmission
Clutch USA JpV brand, 13 inch dual-stage Clutch
PTO Speed (rpm) 540/1000
Gearshift 16F+8R
Speed range (km/h) F: 1.37-32.93 / R:2.09-30.63
Driving brake Wet, disk, hydro-static operate
Gearbox 4×2×(2+1)
Gearbox shifting way Joggle cover
Walking system
Frame type Frameless
Tyre size( front/rear) 14.9-26/18.4-38
Pressure( front/rear) (kPa) 157-196/150-200
Rim material 330CL
Working device
Lifter type Semi-detached model
Max. Lifting force (KN) 27
Suspension model Rear, three-point linkages
Suspension category  Category II or III
Adjusting control Position control, float control
Hydraulic pump type Gear pump CBN-E325L
Hydraulic output valve 3 Groups
P.T.O. type 1 type, rear
Spline no. of P.T.O. 6( standard), 8, 21
Diameter of spline 35
RPM 540/1000 or 760/1000
Technical parameter
Overall Dimension (LxWxH) (mm) 5240×2345×2995
Wheel base (mm) 2530/2657
Track base-Front /R(mm) 1650-2285 (1950 ex-work) /1620-2420 (1850 ex-work)
Track base adjusting way Limited/unlimited
Minimum ground clearance (mm)  520
Min. operational weight (kg) 4755
Front /Rear axle weight (kg) 2050/2705
Front Ballast 440kg (11 pcs, 40kg/pcs)
Rear Ballast 520kg (2 lays each side)
Covering Air-conditioning Cabin or Sunshade (Canopy)
Structure weight (kg) 5400(without cabin)/5780 (with cabin)

DQ1504 150HP 4WD Heavy duty big tractor showing:

DQ1504 150HP 4WD Tractor have Canpy(Sunshade) type and AC cabin type for choose:

Top-rank technical team and Advance R&D Center :

Advance Production workshop :

Strictly inspect for every set machine before Goods Delivery :

Company Honors and Certificates:

Personalized Packing and Transporting Service to meet different customers’ demand :

Perfect after-sale service for both Distributors and Private customers:


Please contact us if you have any demand for our Product  :

Best price will be quoted for you as soon as receive your Requirement !

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
splineshaft

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.
splineshaft

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
splineshaft

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

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