China factory Four CZPT Gears and Three Backward Gears Hydraulic Transmission Gear Box cycloidal drive reducer

Product Description

INTRODUCTIN FOR GEARBOX TMG5713

1.Over view
The CZPT 5713 type hydraulic transmission (hereinafter referred to as the transmission) consists of a YJH315 type hydraulic torque converter and a transmission with 4 CZPT gears and 3 backward gears.
YJH315 The hydraulic torque converter is a single-stage two-phase integrated torque converter, with the characteristics of high efficiency and large torque change ratio. The gearbox is downshaft type, with the front 4 and rear 3 shift function, built-in working oil pump, external force port.
2. Main technical parameters

Rated input power of the matching engine  75kW
Rated input speed of the matching engine   2400r / min
Input shaft steering (facing the transmission output)  counter clock wise
Working fluid No.6 or No.8 hydraulic transmission oil
Main oil pressure and retaining oil pressure 1.6MPa~1.9MPa
Torque converter oil inlet pressure 0.4MPa~0.8MPa
Torque converter oil return pressure  0.22MPa~0.4MPa
Working oil temperature 80ºC ~100ºC
Rated voltage of the solenoid valve   DC24V

About TMG

TMG is a professional trackless mining equipment, engineering equipment manufacturer.Our production base is located in HangZhou, ZheJiang .
Our products include: underground trackless mining equipment (underground loaders, underground mining trucks, utility vehicles, drill jumbos, drivetrain system transmission, torque converter, axle); engineering equipment ( wheel loaders, backhoe loaders, excavators, telescopic handlers,graders, articulated dump trucks); drive-train system (transmission, torque converter, axle).
Besides,as a technology oriented enterprise, we also provide customers with solutions including drive-train system customization, vehicle transformation and project contracting etc.

 

Improvement
The torque converter is easy to heat up
 Inability to climb hills
Climbing long slopes is prone to overheating
 Punch
Easy to burn the friction plate
 Loud noise
 
 
Cause Analysis
 Small horse-drawn cart
 The hydraulic flow of the charging oil is low and the pressure fluctuates greatly
 
Comparison with Top Euro brand 
Customized design to solve customer pain points
 Short lead time, 3 months
Electrically controlled shifting and automatic shifting mode are adopted to reduce shifting impact and protect gears from damage
Hydraulic torque converter has large circulation, large transmitted torque, large traction and strong climbing ability. Change
Torque is not easy to heat up.
 The clutch structure is improved to reduce the friction plate burning phenomenon caused by the inaccurate control of the engagement time of the 2 clutches during the shifting process.
 The gear is thickened to improve the reliability of the gearbox. Higher reliability and longer life.

Payload 6~7 ton Calculation details 
Diesel Engine Model kW Torque 
Converter 
Transmission  Traction kN 1st  km/h  2nd  km/h  3rd  km/h  4th  km/h 
Deutz BF6M
 1013EC165KW
165 YJ330
(C273.1)
RC33429 175.53 4.87 9.68 18.28 25.66
Deutz BF6M 
1013EC165KW
165 YJ330
(C273.1)
RC33428 178.74 4.79 9.52 17.97 24.57
CUMMIS B67CS4 162 YJ330
(C273.1)
RC33429 156.47 4.84 9.63 17.12 25.04
CUMMIS B67CS4 162 YJ330
(C273.1)
RC33428 166.15 4.56 9.08 17.19 23.59
Volvo TAD850VE 162 YJ330
(C273.1)
RC33429 159.71 5.06 10.28 18.82 27.53
Volvo TAD850VE 162 YJ330
(C273.1)
RC33428 169.57 4.76 9.44 17.72 24.11

Application: Machinery, Wheel Loader;Backhoe Loader
Function: Change Drive Torque, Speed Changing, Speed Reduction, Speed Increase
Layout: Cycloidal
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Four-Step
Customization:
Available

|

Customized Request

helical gearbox

The Cyclonoidal Gearbox

Basically, the cycloidal gearbox is a gearbox that uses a cycloidal motion to perform its rotational movement. It is a very simple and efficient design that can be used in a variety of applications. A cycloidal gearbox is often used in applications that require the movement of heavy loads. It has several advantages over the planetary gearbox, including its ability to be able to handle higher loads and higher speeds.

Dynamic and inertial effects of a cycloidal gearbox

Several studies have been conducted on the dynamic and inertial effects of a cycloidal gearbox. Some of them focus on operating principles, while others focus on the mathematical model of the gearbox. This paper examines the mathematical model of a cycloidal gearbox, and compares its performance with the real-world measurements. It is important to have a proper mathematical model to design and control a cycloidal gearbox. A cycloidal gearbox is a two-stage gearbox with a cycloid disc and a ring gear that revolves around its own axis.
The mathematical model is made up of more than 1.6 million elements. Each gear pair is represented by a reduced model with 500 eigenmodes. The eigenfrequency for the spur gear is 70 kHz. The modally reduced model is a good fit for the cycloidal gearbox.
The mathematical model is validated using ABAQUS software. A cycloid disc was discretized to produce a very fine model. It requires 400 element points per tooth. It was also verified using static FEA. This model was then used to model the stiction of the gears in all quadrants. This is a new approach to modelling stiction in a cycloidal gearbox. It has been shown to produce results comparable to those of the EMBS model. The results are also matched by the elastic multibody simulation model. This is a good fit for the contact forces and magnitude of the cycloid gear disc. It was also found that the transmission accuracy between the cycloid gear disc and the ring gear is about 98.5%. However, this value is lower than the transmission accuracy of the ring gear pair. The transmission error of the corrected model is about 0.3%. The transmission accuracy is less because of the lower amount of elastic deformation on the tooth flanks.
It is important to note that the most accurate contact forces for each tooth of a cycloid gearbox are not smooth. The contact force on a single tooth starts with a linear rise and then ends with a sharp drop. It is not as smooth as the contact force on a point contact, which is why it has been compared to the contact force on an ellipse contact. However, the contact on an ellipse contact is still relatively small, and the EMBS model is not able to capture this.
The FE model for the cycloid disc is about 1.6 million elements. The most important part of the FE model is the discretization of the cycloid disc. It is very important to do the discretization of the cycloid gear disc very carefully because of the high degree of vibration that it experiences. The cycloid disc has to be discretized finely so that the results are comparable to those of a static FEA. It has to be the most accurate model possible in order to be able to accurately simulate the contact forces between the cycloid disc and the ring gear.helical gearbox

Kinematics of a cycloidal drive

Using an arbitrary coordinate system, we can observe the motion of components in a cycloidal gearbox. We observe that the cycloidal disc rotates around fixed pins in a circle, while the follower shaft rotates around the eccentric cam. In addition, we see that the input shaft is mounted eccentrically to the rolling-element bearing.
We also observe that the cycloidal disc rotates independently around the eccentric bearing, while the follower shaft rotates around an axis of symmetry. We can conclude that the cycloidal disc plays a pivotal role in the kinematics of a cycloidal gearbox.
To calculate the efficiency of the cycloidal reducer, we use a model that is based on the non-linear stiffness of the contacts. In this model, the non-linearity of the contact is governed by the non-linearity of the force and the deformation in the contact. We have shown that the efficiency of the cycloidal reducer increases as the load increases. In addition, the efficiency is dependent on the sliding velocity and the deformations of the normal load. These factors are considered as the key variables to determine the efficiency of the cycloidal drive.
We also consider the efficiency of the cycloidal reducer with the input torque and the input speed. We can calculate the efficiency by dividing the net torque in the ring gear by the output torque. The efficiency can be adjusted to suit different operating conditions. The efficiency of the cycloidal drive is increased as the load increases.
The cycloidal gearbox is a multi-stage gearbox with a small shaft oin and a big shaft. It has 19 teeth and brass washers. The outer discs move in opposition to the middle disc, and are offset by 180 deg. The middle disc is twice as massive as the outer disc. The cycloidal disc has nine lobes that move by one lobe per drive shaft revolution. The number of pins in the disc should be smaller than the number of pins in the surrounding pins.
The input shaft drives an eccentric bearing that is able to transmit the power to the output shaft. In addition, the input shaft applies forces to the cycloidal disk through the intermediate bearing. The cycloidal disk then advances in 360 deg/pivot/roller steps. The output shaft pins then move around in the holes to make the output shaft rotate continuously. The input shaft applies a sinusoidal motion to maintain the constant speed of the base shaft. This sine wave causes small adjustments to the follower shaft. The forces applied to the internal sleeves are a part of the equilibrium mechanism.
In addition, we can observe that the cycloidal drive is capable of transmitting a greater torque than the planetary gear. This is due to the cycloidal gear’s larger axial length and the ring gear’s smaller hole diameter. It is also possible to achieve a positive fit between the fixed ring and the disc, which is achieved by toothing between the fixed ring and the disc. The cycloidal disk is usually designed with a short cycloid to minimize unbalance forces at high speeds.helical gearbox

Comparison with planetary gearboxes

Compared to planetary gearboxes, the cycloidal gearbox has some advantages. These advantages include: low backlash, better overload capacity, a compact design, and the ability to perform in a wide range of applications. The cycloidal gearbox has become popular in the multi-axis robotics market. The gearbox is also increasingly used in first joints and positioners.
A cycloidal gearbox is a gearbox that consists of four basic components: a cycloid disk, an output flange, a ring gear, and a fixed ring. The cycloid disk is driven by an eccentric shaft, which advances in a 360deg/pivot/roller step. The output flange is a fixed pin disc that transmits the power to the output shaft. The ring gear is a fixed ring, and the input shaft is connected to a servomotor.
The cycloidal gearbox is designed to control inertia in highly dynamic situations. These gearboxes are generally used in robotics and positioners, where they are used to position heavy loads. They are also commonly used in a wide range of industrial applications. They have higher torque density and a low backlash, making them ideal for heavy loads.
The output flange is also designed to handle a torque of up to 500 Nm. Its rotational speed is lower than the planet gearbox, but its output torque is much higher. It is designed to be a high-performance gearbox, and it can be used in applications that need high ratios and a high level of torque density. The cycloid gearbox is also less expensive and has less backlash. However, the cycloidal gearbox has disadvantages that should be considered when designing a gearbox. The main problem is vibrations.
Compared to planetary gearboxes, cycloidal gearboxes have a smaller overall size and are less expensive. In addition, the cycloid gearbox has a large reduction ratio in one stage. In general, cycloidal gearboxes have single or two stages, with the third stage being less common. However, the cycloid gearbox is not the only type of gearbox that has this type of configuration. It is also common to find a planetary gearbox with a single stage.
There are several different types of cycloidal gearboxes, and they are often referred to as cycloidal speed reducers. These gearboxes are designed for any industry that uses servos. They are shorter than planetary gearboxes, and they are larger in diameter for the same torque. Some of them are also available with a ratio lower than 30:1.
The cycloid gearbox can be a good choice for applications where there are high rotational speeds and high torque requirements. These gearboxes are also more compact than planetary gearboxes, and are suitable for high-torque applications. In addition, they are more robust and can handle shock loads. They also have low backlash, and a higher level of accuracy and positioning accuracy. They are also used in a wide range of applications, including industrial robotics.
China factory Four CZPT Gears and Three Backward Gears Hydraulic Transmission Gear Box   cycloidal drive reducerChina factory Four CZPT Gears and Three Backward Gears Hydraulic Transmission Gear Box   cycloidal drive reducer
editor by CX 2023-04-21