planetary gear

Introduction The rapid depletion of fossil fuels and escalating environmental concerns have accelerated the development of electric vehicles (EVs). A

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

Firstly, the overall layout of the whole planetary gear transmission structure is carried out in CAD, and the plane layout

The calculation of heat flow density and convection heat transfer coefficient will be used as the input heat source and

The sampled signals are analyzed and processed in DH5922 dynamic signal test and analysis system software of Donghua Test. Figure

As shown in Figure 1, the vibration acceleration in X, Y and Z directions at the selected nodes with input

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

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

In the research of planetary gear transmission system, the module selection range is usually 1-50 mm. Because the small module

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 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 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