The Manufacturing Accuracy Of The Gear Coupling With Spacer Determines Its Noise Value

The crown drum-shaped gear coupling connected to the intermediate shaft requires high transmission efficiency and transmission in working conditions with large adjustment errors and swing angles. The requirements for low-noise gear structure design are to maximize the bending strength of the gear teeth, select a larger displacement coefficient and an appropriate helix angle, and increase the meshing coefficient to achieve the purpose of reducing noise. The main function of the reducer gear is to transmit torque and rotational speed, so the gear manufacturing requirements are high, and its working stability level is the main performance indicator. The drum-shaped tooth coupling connected to the intermediate shaft has a higher working stability level. Gears have a long service life, and the impact and vibration in the transmission are small, so the noise is small. Therefore, limiting the working stability error of the gear is the key to reducing gear noise. When the drum-shaped gear coupling connected to the intermediate shaft is working, it needs to work in a good sealing state.

The working stability of the gear is to limit the changes in the instantaneous speed ratio. The error is the angle error that occurs multiple times per gear revolution, which causes the gear to easily produce impact and vibration during meshing, thereby producing gear noise. It is a kind of high frequency impact sound. The drum-shaped gear coupling connected to the intermediate shaft can allow larger angular displacement, improve the ability to transmit torque, and extend the service life. For a gear, the factors that affect the smooth operation are its base pitch error and its involute tooth profile error. The indicator of gear contact is the contact spot. Gears with poor contact have loud noises. The reasons for poor gear contact include tooth direction error affecting the contact in the tooth length direction, base pitch deviation and tooth shape error affecting the contact in the tooth height direction. The maximum angle error for one revolution cannot exceed a certain limit.