During the operation of the hydraulic oil pump motor, the rotor part will have different degrees of displacement in the axial and radial directions, which is manifested as the noise and vibration of the motor. When the relative displacement in the axial direction is large, it is manifested in the axial direction. Flutter.
1. Causes of axial movement
(1) The shaft and the rotor move relative to each other.
(2) The axial adjustment spring washer is damaged or missing.
(3) The movement caused by the self-alignment adjustment of the magnetic centerline of the stator and rotor of the motor.
(4) The axial force generated when the fan rotates.
(5) The movement caused by the loose fit of the end cover bearing chamber.
2. What are the effects of axial movement?
The movement of the motor shaft causes the joint parts that should not have relative motion to slip and the gap becomes larger, and the motor has abnormal conditions such as vibration and noise increase. At the same time, the originally relatively static joint parts slip → increase the vibration → increase the slippage of the shaft →Intensified vibration →...until the bearings fall apart and "screw the bore" and burn the windings. Even if it has not reached the level of winding damage, it will greatly reduce the service life of the motor.
Three, solution measures
(1) A wave spring washer can be added between the outer edge of the bearing and the end cover to adjust and buffer;
(2) Real-time monitoring and timely maintenance to eliminate the problem of motor shaft channeling before causing major accidents;
(3) The bearing inner and outer cover for the fixed end bearing is stuck;
(4) Control the link that causes the motor to move shaft;
(5) Understand and master the actual operating conditions of the motor in detail to avoid the motor bearing axial force.
The above are the reasons and solutions for the axial movement of the hydraulic oil pump motor compiled by the editor of Dalan Motor. I hope it will be helpful to friends in need.
ï¼ï¼ï¼ï¼- Editor in charge: Dalan Oil Pump Motor 02-Purchasing Consultant
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