Spiral bevel gears are developing towards high speed, heavy load and lightweight. For a long time, the types of tooth surfaces that can be used for spiral bevel gears are limited, and there are few models. The shape of gear tooth surface depends on the shape of the machine tool used. Problems such as bearing capacity, vibration and noise have seriously affected the further application of industrial equipment.
The meshing process of spiral bevel gear is a very complex nonlinear process. The change of various operating parameters in the meshing process will affect its meshing characteristics, for example, the driving wheel speed, acceleration time, damping and the load on the driven wheel will affect the meshing performance of spiral bevel gear. Therefore, the finite element analysis software Abaqus is used to conduct dynamic simulation of spiral bevel gear and observe the influence of various factors on the meshing characteristics of spiral bevel gear.
The finite element simulation software Abaqus is used to simulate the dynamics of spiral bevel gears. The following conclusions are drawn from the curve of angular velocity and contact force of the large wheel:
1) The change of damping has an important influence on the meshing characteristics of spiral bevel gears. If the damping is small, the spiral bevel gear will be disengaged and impact contact will occur. With the increase of damping, the spiral bevel gear transmission stabilizes faster, and at the same time increases the maximum value and stability of the contact force on the tooth surface.
2) The longer acceleration time will reduce the frequency and amplitude of the wheel speed fluctuation and the maximum impact on the tooth surface, thus making the change curve smoother. Therefore, the loading time has a great impact on the dynamic performance of spiral bevel gears. A longer starting acceleration time should be selected to avoid causing greater initial impact, which can improve the meshing quality on the surface of gear teeth.