Abstract The study focuses on the impact of helical gear meshing moments on the transient lubrication performance of planetary gear […]
Introduction The rapid depletion of fossil fuels and escalating environmental concerns have accelerated the development of electric vehicles (EVs). A
In the field of mechanical engineering, planetary gear systems play a crucial role in various applications due to their advantages
The planetary gear transmission system has the advantages of smooth transmission, high mechanical efficiency, and a wide range of transmission
Shield tunneling machines are playing an increasingly important role in underground engineering construction. As the core component of shield tunneling
This study aims to investigate the failure mechanism of automotive planetary gear and propose corresponding optimization designs to improve the
When selecting the right gear solution for a particular application, it is important to consider the specific requirements, operating conditions,
When selecting the right gear type for your application, it is important to consider the specific requirements and constraints. Worm
Firstly, the overall layout of the whole planetary gear transmission structure is carried out in CAD, and the plane layout
To ensure the effectiveness of the improvement, modeling and simulation analysis were conducted on the improved state planetary reduction mechanism.
According to theoretical calculations, the strength design of each gear in the planetary reduction mechanism meets the requirements. According to
The planetary gear reducer has made improvements to the rotating actuator in response to the cause of the malfunction. To
Planetary gear reduction mechanisms have the advantages of small size, large load-bearing capacity, high transmission efficiency, and high transmission ratio,
In addition to helical gears and spur gears, there are several other types of gears that can be used in
Transmission error is a key performance indicator for evaluating the transmission accuracy of planetary gear transmission systems, and it is
In the Xinjiang region, there is an extremely harsh environment, with extreme heat and cold conditions. The location of the
Wind power generation, as a clean and pollution-free energy source, has been widely used globally in recent years. Its structural
1.Strength analysis of planet carrier In the planetary reducer, the planet carrier is often the part with the largest torque,
The calculation of heat flow density and convection heat transfer coefficient will be used as the input heat source and
In order to study the temperature distribution characteristics of the planetary gear transmission system, a numerical analysis method of the
A numerical analysis method and experimental research method for the dynamic temperature field of planetary gear system are proposed based
The working principle of rocker arm gear drive of a thin seam shearer is shown in Figure 1. The gears
Coal is not only the basic energy of our country, but also an important industrial raw material. With the rapid
The sampled signals are analyzed and processed in DH5922 dynamic signal test and analysis system software of Donghua Test. Figure
The outer surface of the fixed internal gear of the linear conjugate planetary gear reducer with small tooth difference is
As shown in Figure 1, the vibration acceleration in X, Y and Z directions at the selected nodes with input
When the load torque is 80 N · m, the input speed is 600 r/min, 1400 r/min and 2200 r/min,
According to the principle of gear engagement, the mathematical model of the planetary gear internal gear profile can be described
The external gear coordinate system S1: O1-x1y1 is established according to the parameters of the linear profile gear, as shown
The linear conjugate tooth profile is studied, and the advantages of the linear conjugate tooth profile are applied to the
In order to diagnose the crack fault of the planet gear of the planetary gear mechanism better, ZHY Gear has
In the process of the above planetary gear mechanism simulation and analysis, the gear ring needs to be generated into
The planetary gear mechanism of an automobile is composed of a sun gear, three planetary gears, a gear ring and
At present, planetary gear mechanism has been widely used in the transmission systems of automobiles, ships, airplanes, excavators and loaders.
A kind of traction underactuated pull in manipulator based on planetary gear mechanism is designed. The fingers of the manipulator
In general, the underactuated manipulator driven by motor usually uses the dynamic coupling effect to realize the underactuated form of
As a key component of the robot end effector, the manipulator can realize the grasping operation of the target object
The most prominent feature of planetary gear transmission is to change the fixed axis transmission of ordinary gear transmission to
In the research of planetary gear transmission system, the module selection range is usually 1-50 mm. Because the small module
As an important part of wind turbine, planetary gear transmission system has the advantages of compact structure, strong bearing capacity,
The gearbox is the core component of the tractor chassis. At present, tractors mainly use fixed shaft gear boxes, which
Non-circular planetary gear train mechanism has been widely studied and applied in rice transplanting mechanism because it can realize unequal
As shown in the figure, the load stroke curve of the three schemes shows that the load change laws of
Stress is the internal force per unit area, which reflects the stress of planetary gear blank. Figure 1 and 2
As shown in the figure, the structure diagram of the planetary gear final forging die is given. Since the final
Strain is a physical quantity that represents the magnitude of deformation, the cumulative process of plastic deformation and the development
As shown in the figure, the structure diagram of the planetary gear pre forging die is given. The tooth die
The velocity field of planetary gear pre forging directly reflects the metal flow law of the whole deformation process. As
Fig. 1 shows the forging drawing of planetary gear and half shaft gear. When formulating the forging drawing of bevel
The finite element simulation software DEFORM-3D is used to simulate the forging process of “one fire two forging” of planetary
Variation law of residual strength of planetary gears in flight vehicle transmission system. Taking the bending fatigue residual strength of
The influence of the bearing stiffness of the central component of the system on the dynamic characteristics of planetary gears
All mechanical motions are accompanied by the loss of mechanical energy, that is, all vibrations have damping. The damping force
In the gear transmission system, due to the need of lubrication and the manufacturing accuracy and installation error of gear
There are three cases for the influence of tooth surface contact phase angle on parameter excitation intensity: the first case,
The meshing error of gear teeth mainly comes from the error caused by gear processing and installation. Machining error mainly
The planetary gear transmission system of hybrid electric vehicle studied is composed of composite planetary gear mechanism and parallel axis
The direction shown in the figure is positive, φ R is the included angle between the connecting line between the
Take the direction shown in the figure as the positive direction, φ S1 is the angle between the connecting line
Compared with foreign countries, China’s research on the dynamic characteristics of planetary gear train is not backward. Lu Jingjing of
