Vibration motor common faults and treatment methods

- Jun 05, 2018 -

Vibration motor common faults and treatment methods


Symptom 1: The motor cannot start after the power is turned on.


Possible Causes:

1. Short circuit between the stator windings and grounding of the stator windings.

2, stator winding wiring error.

3, the load is too heavy, the rotor is blocked.


Approach:

1, check the open circuit, short circuit, grounding and repair;

2, check the winding wiring, and correct;

3, reduce the load and eliminate obstacles.


Symptom 2: The temperature rise of the motor is too high or smoke


Possible Causes:

1, the load is too heavy;

2, winding short circuit;

3, winding wiring error;

4, the winding into the wiring or the short circuit between the windings;

5, motor rotor broken bar;

6, the word rotor wipe;

7, the power supply voltage is too low.


Approach:

1, reduce the load or replace the motor;

2, repair the short circuit location;

3, check the winding wiring, and correct;

4, find the fault and repair;

5, replace the rotor;

6. Measure the air gap and bearing wear of the motor and repair it.


Symptom 3 : bearing overheating


Possible Causes:

1, bearing wear or quality problems;

2, bearing grease too much or too little, the model is wrong or the quality is not good;

3, bearing inner ring and fit too loose or too tight;

4. The outer ring of the bearing and the end cover are too loose or too tight;

5, the end cap and bearing inner cover assembly quality is not good.


Approach:

1, replace the bearing;

2, adjust the grease;

3, when it is too loose, it can add a circle of metal to the shaft for reprocessing; when it is too tight, it can be re-added with the bearing file;

4. When loosening, the bearing chamber of the end cap can be enlarged and installed, and the bearing chamber can be reprocessed when it is too tight;

5, remove and reload, so that the bearing force evenly.


Symptom 4: The motor housing is charged


Possible Causes:

1, winding insulation damage;

2, the winding moisture;

3, lead damage or too much dirt.


Approach:

1. Repair insulation and dry the paint;

2, drying or dipping paint drying;

3, replace the lead, clean up the grime.


Symptom 5: Bottom break


Possible Causes:

1. The anchor bolt is not tightened;

2, the installation plane is not flat.


Approach:

1. Regularly tighten the bolts;

2, re-install the installation plane.


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