How to solve the vibration motor noise excessive vibration anomalies

A noise exception
1 When the stator and rotor rubs , will produce grazing shrill chirping sound . Should check bearing damage need to be updated . If the bearing does not go bad and found the

bearing inner or outer Apron feeder ring inlay sleeve or replace the bearing and end caps .
2 vibration motor phase operation, roar particularly great. Can be powered down and then switch to see if I can start properly . If you can not start , there may be a phase

circuit. Switches and contactor contacts will occur not turned missing running .
3 bearing severe lack of oil , the bearing chamber can be Coal screening machine heard from the hissing sound. Bearings should be cleaned , add new oil.
4 blades touch the shell or debris, will issue a crash. Blades should be corrected to remove the debris around the blades .
5 . Rotor bar fault occurs when the high low hum , speed is also slow , the current increases .
6 first end of the stator winding wiring mistakes, muffled roar , the speed also decreases.
7 a stator , a rotor core loose.
Second, excessive vibration
1 motor rotor unbalance ( eg rotor counterweight screw off ) shall be calibrated balancing .
2 Transmission pulley unbalance , static balance should be corrected .
3 shaft bent. Replace the shaft, or the car straight casement ( heat set ) .
4 installed base is uneven or unstable fixed . Should be re- installed , fixed stable.
5 . Rotor bar fault , the load current varying oscillate .
6 incorrect or loose coupling assembly .
7 is driven mechanical lose balancing .
8 The stator windings partial failure , rotating magnetic field unbalanced vibrations .
9 due to wear , the bearing clearance is too large .
10 core deformation or loose.
11 fans imbalances.