Method of reducing gear noise of planetary reducer

Reducing the gear transmission noise during the operation of planetary reducers has become an important research topic in the industry. Many scholars at home and abroad regard the changes in gear tooth meshing stiffness in gear transmission as the main factors affecting the dynamic load, vibration, and noise of planetary reducers. By using the method of shape modification, the planetary deceleration maneuver load and speed fluctuations are minimized to achieve the goal of reducing noise. This method has been proven to be a more effective method in practice. However, using this method requires shaping equipment in the process, which is often impossible for large, medium, and small factories to implement.

After years of research, Baepman has put forward a gear design method to minimize the meshing impact speed by optimizing gear parameters, such as modification coefficient, tooth height coefficient, pressure angle and Centre-to-centre distance, and the ratio of meshing impact speed to meshing impact speed is in a certain numerical range, so as to reduce or avoid the impact of meshing pitch circle, which can also significantly reduce gear noise of reducer.