The protection of the screw air compressor is the most important link in the protection of the air compressor. Better protection of air compressor rotors and bearings can extend the life of the machine. When the oil-injected screw compressor is used for a long time, the screw rotor may have the following problems:
The hazards of screw air compressor rotor repair
1. Bearing wear
2. Excessive meshing clearance
3. A faulty oil circuit
4. The problems caused by excessive vibration and running noise are due to the inevitable mechanical wear and fatigue of the rotor in long-term operation under high load and high temperature. If you do not check and repair it in time, you may face many losses: the air compressor rotor is worn; the rotor B is abnormally rubbed and moved; the operation reliability is reduced; the power is reduced; the energy consumption is increased; and the sudden damage completely affects the production.
What are the operating specifications for screw air compressor parts?
There are many reasons for bearing damage, such as improper installation, dust intrusion, or moisture intrusion. It is a common cause of early bearing damage. The following is an analysis of the common damage causes of some large bearings and corresponding preventive measures to prolong the service life of the bearings.
A. Improper Operation: Improper installation, operation, or disassembly of the cage may result in deformation or defects. Preventive measures : use proper handling, equipment, and disassembly.
B. Inadequate smoothness: Inadequate or improper smoothness can cause component wear or serious bearing deformation. Preventive measures : Improve the lubrication system; make up or replace the lubrication agent regularly and properly.
C. Rust and Corrosion: Contact with water may cause corrosion and rust of bearing components. The corrosion damage of the bearing may lead to the anti-dropping method in operation: check the seal regularly, ensure a good sealing effect, and store the bearing correctly.
D. Current: When the bearing rotates, electrification may cause grooves or nicks. When the bearing is stopped, improper grounding of the electrical operation will result in a slight burn prevention measure: before welding parts other than the bearing, reduce or prevent the current flow through the bearing through a suitable polyester connection.
E. External Information: Abrasive particle contamination and debris intrusion may cause wear, scratches, and dents on the bearing surface. Preventive measures: Remove invading particles and debris, replace lubricants, and check sealing systems.
F. Eccentricity: Eccentricity, inclination or excessive load may cause geometric stress concentration or surface shedding. Preventive measures: fine machining of bearing seats and shoulders.
