gear wheel structure
The structure of the gear wheel body has an important influence on the noise of the gear system.
First, under the action of the dynamic excitation force of the gear teeth, the wheel body acts as an elastic body to generate vibration and radiate noise. Bullying, the dynamic excitation acting on the gear teeth will be transmitted to the drive shaft through the wheel body, and then to the bearing and box. Then, the structure of the wheel body will also affect the transmission error of the tooth meshing process, which in turn will affect the size of the dynamic excitation force. For loquat, we can reduce the noise from the two aspects of reducing the noise radiation of the gear body and reducing the transmission of the vibration of the gear body.
Reduce gear body noise radiation
Generally speaking, in addition to the energy of the vibration source, the size of the noise is mainly determined by the radiation area. Therefore, reducing the surface area of the gear can reduce the radiation area of the noise, thereby reducing the radiation noise. In addition, the shape of the gear has a certain relationship with the noise level. For example, the thicker the gear blank and the smaller the diameter, the lower the noise.
In this regard, we can use some composite structures, or fill the middle of the gear body with vibration damping materials to increase the damping effect of the gear, thereby reducing the transmission of vibration and reducing noise.