Talking about the maintenance operation specification of screw air compressor

The maintenance of screw air compressors is an important part of the maintenance of air compressors. Better maintenance of the rotor and bearings of the air compressor can better maintain the service life of the machine. When the oil-injected screw compressor is used for too long, the screw rotor may have the following problems:

Screw Compressors

The maintenance of screw air compressors is an important part of the maintenance of air compressors. Better maintenance of the rotor and bearings of the air compressor can better maintain the service life of the machine. When the oil-injected screw compressor is used for too long, the screw rotor may have the following problems:

The hazards of screw air compressor rotor maintenance

1. Bearing wear

2. The meshing gap is too large

3. Poor oil circuit

4. The problem caused by excessive vibration and running noise is that the rotor will inevitably produce mechanical wear and fatigue under high load and high temperature for long-term operation. If you do not check and repair in time, you may face many losses: air compressor rotor wear; abnormal friction and movement of rotor B, operation reliability, efficiency, energy consumption increase, sudden damage, affecting production.

There are many reasons for bearing damage, such as improper installation, dust or moisture intrusion, etc. It is a common cause of early bearing damage. The following is an analysis of some common causes of damage to large bearings and corresponding preventive measures to extend the service life of the bearings.

A. Improper operation: Improper installation, operation or disassembly may cause deformation or defects of the cage. Precautionary measures: Use proper operation, installation and removal tools.

B. Insufficient lubrication: Insufficient or improper lubrication may cause component wear or serious deformation of the bearing. Preventive measures: improve the lubrication system, regularly supplement or replace lubricants appropriately.

Rust and corrosion: contact with water may cause corrosion and rust of bearing components. Corrosion damage to the bearing may lead to anti-stripping measures during operation: regularly check the seal to ensure a good seal, and store the bearing correctly.

D. Current: When the bearing rotates, charging may cause grooves or nicks. When the bearing is stationary, the incorrect grounding of the electrical operation will cause minor injuries. Measures: Before welding parts other than the bearing, reduce or prevent the current from flowing through the bearing through a suitable polyester connector.

E. External materials: Contamination of abrasive particles and intrusion of debris may cause wear, scratches and dents on the working surface of the bearing. Preventive measures: invading particles and debris, replace the lubricant, and check the sealing system.

F. Eccentricity: Eccentricity, inclination or excessive load may cause geometric stress concentration or surface peeling. Preventive measures: precision machining of bearing seats and shoulders.