The noise generation of the deceleration equipment is mainly caused by the friction, vibration and collision of the transmission gear. How to effectively reduce and reduce the noise and make it more in line with environmental protection requirements is also a key research topic at home and abroad.
Reducing the gear transmission noise during the operation of the reducer has become an important research topic in the industry. Many scholars at home and abroad regard the change of gear tooth stiffness in gear transmission as the main factor of gear dynamic load, vibration and noise. The shape modification method is used to minimize the dynamic load and speed fluctuations to achieve the purpose of reducing noise. This method has proved to be a more effective method in practice. However, with this method, the process needs to have a shape-cutting device, and the majority of small and medium-sized factories are often unable to implement it.
After years of research, it is proposed to optimize the gear parameters, such as the displacement coefficient, the tooth height coefficient, the pressure angle and the center distance, to minimize the impact velocity, and the ratio of the impact velocity to the impact velocity is at a certain value. The range, the gear design method that reduces or avoids the impact of the pitch circle, can also significantly reduce the gear noise of the reducer.
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