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Centrifugal fan mainly consists of: impeller, housing, coupling, shaft. The impeller is the main working part of generating wind pressure and transferring energy. The casing is mainly used to introduce gas and discharge gas, and at the same time, part of the kinetic energy of the gas into pressure energy; The coupling is used to connect the motor and the fan to transmit the torque; The shaft is mounted and fixed to the impeller through the coupling with the motor.

Causes and treatment methods of the failure of the lubrication system of centrifugal ventilator:

The reason:

1. The clearance between the bearing hole of the oil pump and the gear shaft is too small, and the radial clearance between the inner hole of the shell and the gear is too small;

2. The clearance between gear end face and bearing end face and side cover end face is too small;

3. The quality of lubricating oil is poor, the viscosity size is inappropriate or the moisture is too much;

Treatment method:

1, maintenance, make the gap to reach the required range;

2. Adjust the clearance;

3. Replace the lubricating oil of the centrifugal fan;