2026-04-10Views：
Screw air compressor vibration reasons may be the following:
the anchor or imported filter screen fixing bolts are loose. In this case, the air compressor will vibrate due to unstable fixation during operation.
The filter element of the oil and gas separator is blocked or the differential pressure of the differential pressure sensor is too large. This leads to poor exhaust of the air compressor, which in turn causes vibration.
Intake valve does not open fully. If the intake valve cannot be fully opened, the air compressor will be blocked during the suction process, resulting in vibration.
The belt is too loose, and the groove type of the active belt and the passive belt does not match, resulting in slipping and vibration. In this case, the transmission system of the air compressor will be affected, resulting in vibration.
There is no oil supply immediately after the air compressor runs, and the metal dry friction produces vibration. This usually occurs in the short time after the start of the air compressor, because the lubricating oil is not supplied to the various components in time, resulting in direct friction between the metals and vibration.
Rotor, coupling, transmission wheel, etc. caused by imbalance. The imbalance of these components will cause the air compressor to vibrate during operation.
Poor gear engagement or severe wear. The gear is an important part of the transmission system of the air compressor. If the gear is poorly engaged or worn, it will cause the transmission to be unstable and cause vibration.
Structural aspects, such as defects in the motor itself (journal ellipse, shaft bending, etc.), insufficient mechanical strength, resonance, and loosening of anchor screws may also cause vibration. In addition, the motor and the foundation plate between the fixed is not strong, the bearing seat and the foundation between the loose and other installation problems are also common causes of vibration.
Electrical aspects, such as three-phase voltage imbalance, three-phase motor phase loss operation may also lead to abnormal vibration of the air compressor. AC motor stator wiring error, winding type asynchronous motor rotor winding short circuit, synchronous motor excitation winding gate short circuit, synchronous motor excitation coil connection error is also a possible cause.
In order to reduce the vibration of the screw air compressor, the following measures can be taken: check and tighten the anchor and the fixing bolt of the inlet filter screen; Clean or replace the filter element of the oil and gas separator; Check the intake valve and ensure that it can be fully opened; Adjust or replace the belt; Ensure that the air compressor supplies oil immediately after operation; Balance and correct the rotor, coupling, transmission wheel, etc.; Check and repair the gear engagement problem or replace the gear with serious wear; check and repair the motor and mechanical structure; ensure the normal operation of the electrical system.
The above information is for reference only. It is recommended to consult professional technicians for specific fault diagnosis and maintenance.
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