Analysis of the possible causes of damage to the drum gear coupling

　　Analysis of the causes of damage to the drum gear coupling:

　　1 The axial movement of the main motor shaft is too large: the motor is supported by sliding bearings. The factory standard rotor axial movement is 5% of the magnetic center of the motor, and the position of the magnetic center is not marked, and the gear coupling allows the shaft The amount of axial movement is 5%. It is precisely because the axial movement of the rotor of the main motor is greater than the axial movement of the drum gear coupling, which causes the axial movement of the rotor to affect the main motor during the start and stop process. The gear coupling produces a great impact, causing damage to the gear.

　　2Improper installation of the motor: Since the position of the magnetic center of the motor is not marked, the rotor position of the motor is not at the position of the magnetic center when the motor is statically installed, and the influence of the magnetic center of the motor is ignored during the installation process.When the motor rotates, due to the pulling effect of the gear coupling, the motor rotor cannot be positioned under the magnetic center. This intensifies the impact on the gear coupling and accelerates the damage to the gear shaft.

　　Solution: Use the same type of motor, supported by sliding bearings, and strictly control the manufacturing within ±2.5mm of the magnetic center of the motor according to the axial movement of the rotor, and mark the position of the magnetic center.Mark the stator and rotor.