What are the effects of geared motor on noise?

The influence of geared motor on noise is mainly the influence of machining error, working stability accuracy, gear contact accuracy and gear accuracy. The following is a brief introduction to the influence of gear motors on noise.

1. The influence of gear accuracy on noise: Gear accuracy refers to the accuracy of transmission motion, that is, the angle error of gear rotation will not exceed a certain limit. Since the precision of gear transformation is a large periodic error, the accumulated error of the radial runout of the ring gear when the gear rotates a single turn will generate low-frequency noise. When the cumulative error increases, it affects the gear mesh and angle. Shifting gears with eccentric gears creates an unbalanced centrifugal force during meshing, an intermittent application that causes the gear train to vibrate and generate noise.

2. The influence of machining errors on noise: In order to increase the bending force of the gear teeth, select a larger displacement coefficient and a suitable helix angle to increase the meshing coefficient to reduce noise. For standard reducers, it is determined by the precision of the gears. The main function of the reducer is to transmit speed and torque. The requirements for gear accuracy and working stability are very important. Greater stability does not give micro gear motors long life, with little impact from pulses and vibrations. The noise is also small, so the stability error of gear operation is the key to reducing gear noise.

3. The influence of the working stability accuracy on the noise: The working stability accuracy of the gear is required to limit the instantaneous speed ratio change of the gear. Every time the gear rotates, there will be a rotation angle error, which will cause the gear to produce shock vibration during the meshing process, resulting in gear noise, which is a high-frequency shock sound.

4. The influence of gear contact accuracy on noise: Gear contact accuracy is the key. If the contact is not good, the gear noise will increase. The reasons for poor gear contact include tooth orientation error, basic pitch deviation and tooth profile error.