Why noise is generated when gears are meshed
Published on:
2021-09-15
Gear machining is mainly a process to obtain the specific structure and accuracy of gears by mechanical means. In the process of machining, noise sometimes occurs, and gear noise is mainly due to the vibration caused by the collision between gears meshing with each other and the sound emitted.
Gear machining is mainly a process to obtain the specific structure and accuracy of gears by mechanical means. In the process of machining, noise sometimes occurs, and gear noise is mainly due to the vibration caused by the collision between gears meshing with each other and the sound emitted.
What are the causes of noise generated by the meshing of gears?
In the process of mutual meshing between two gears, because the teeth are subjected to elastic deformation, the load of the previously meshed teeth will become relatively small, and they immediately resume deformation toward the load position, giving the gear body a tangential acceleration, plus the original meshing teeth under load bending deformation and gear manufacturing errors, so that the gear teeth from the entire meshing process out of the meshing collision, forming the so-called meshing impact force.
Under the action of this excitation, the gear also excites the vibration of the gear, which generates noise and propagates through the air and solid media. Therefore, the cause of noise generated by gear processing is mainly the vibration generated during the meshing process.
Nowadays, it is very important to control gear transmission noise, and the requirements for transmission error of equipment in industrial production are becoming more and more strict, so it is important to find ways to control to avoid noise generation.
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