1. Examples of damaged parts:
1. The motor coil of screw air compressor is burnt out.
2. The bearing position of front and rear end covers of motors is seriously worn.
3. Serious wear and tear in front bearing of motor rotor;
4. Split front-end bearing and stuck back-end bearing.
5. Slot wear of motor stator leads to inclination.
6. Burning and adhesion of main AC contactor of air compressor control box.
2. Causes of air compressor damaged parts are divided into two parts:
On the spot and the damaged parts, it is obvious that the equipment is caused by a series of problems caused by the damage of motor bearing of air compressor.
After the motor bearing is damaged, the gap between the stator and the rotor of the motor is shifted and friction occurs, resulting in high temperature to further damage the bearing, so the load current of the motor becomes larger; the contact current of the AC contactor is far beyond the rated current, that is, the contact heating occurs, which eventually leads to the main AC contactor contact burning, adhesion and inseparability, resulting in short circuit, motor burning.
In the process of bearing damage, because the motor is in high-speed operation and the power is larger. When the gap between the stator and the rotor shifts, the front and rear end covers will bear the weight of the rotor tilt, that is, serious wear of the front and rear end covers will occur. After the bearing is locked at high temperature, high speed friction occurs between the inner ring of the bearing and the main shaft of the rotor, which leads to serious wear and tear of the main shaft of the rotor.
3. The above breakdown requires air compressor maintenance items:
1. The motor coils should be replaced completely.
2. All wear-out bearings are replaced.
3. The front and rear end covers of motors need to be repaired by spraying.
4. The rotor spindle needs to be repaired by spraying.
5. The main AC contactor of the electric box needs to be replaced.
6. Remove and replace intact parts under thermal protection.
7. The slot position of stator coil of electric box is arranged completely according to the need.
Thank you for reading, this article source: Jinan Air Compressor more content and questions, please click: , we will continue to work hard to provide you with services, thank you for your support!