1, the bearing box is violently vibrate;
(1) the axis of the vortex pump is different from the motor shaft, and the coupling is distorted.
Friction between the casing or the inlet of the air inlet and the impeller
The steel degree of the foundation is not firm
(4) the loosening of the rivet of the impeller or the deformation of the impeller
Impeller shaft disc and shaft loosening, or coupling bolt loosening
The casing and the bracket bearing and bearing box bearing box cover on the seat connecting bolt looseness
The improper installation of gas pipeline and import of vortex pump
The unbalanced rotor fan blade wear
2. The temperature rise of the bearing is too high.
Strenuous vibration of the bearing box
The quality of lubricating oil is not bright, deteriorated, and contains too much dust, sticky sand, dirt and other impurities
The tight force of the bolt of the bearing box cover and seat is too large or too small
The shaft and rolling bearing are skewed, and the two bearings are not concentric.
Rolling bearing damage
3, the electrode current is too large or the temperature rise is too high.
(1) the intake pipe gate or throttle valve is not closed when driving
(2) flow exceeds the specified value
The density of the gas is too large or has a sticky substance.
4) low input voltage of motor or single phase power failure of power supply
(5) the coupling of the coupling is not correct, the skin ring is too tight or the gap is uneven
The influence by the violent vibration of bearing box