The cause of noise in gear system

The causes of noise in gear system are as follows:

(1) Improper selection of gear design parameters, too small coincidence, improper modification or no modification of tooth profile, unreasonable gearbox structure, etc.

(2) In gear processing, the base pitch error and tooth shape error are too large, the tooth side clearance is too large, and the surface roughness is too large.

(3) gear train and gearbox assembly eccentricity, low contact accuracy, shaft parallelism, shaft, bearing, bearing stiffness is insufficient, bearing rotation accuracy is not high and clearance improper.

(4) Input torque in other aspects. Fluctuation of load torque, torsional vibration of shafting, balance of motor and other transmission pairs, etc.