Auto water pump bearing factory repair on the pump shaft
by:Waxing2020-11-20
Auto water pump bearing manufacturer on repair of pump shaft (1) and repair of pump shaft of pump shaft winding winding direction and volume were measured, if beyond the allowed size amount of twists and turns in, can use straightening method of pump shaft repair.
Pump shaft straightening method has two kinds, namely thermal method and the correction method of correction, according to the amount of twists and turns of pump shaft intrusive choose straightening method.
Straightening, cannot be impatient for success, and that the review of the work of the pump shaft straightness, in order to get precise straightening effect.
(2) the repair of the pump shaft wear on parts of the wear of the pump shaft, if wear depth is not too big to wear parts by surfacing welding method for repairing.
After welding should be on the lathe turning to the original scale.
If wear depth is bigger, the make up method to repair parts are available, and repair solution is, first to the wear of pump shaft layer on lathes, turning a sleeve, sleeve and the pump shaft set match together, and make the inner diameter of the sleeve and the outer diameter of pump shaft on the light layer interference fit, its interference value according to the pump shaft diameter intrusive, under normal circumstances, a surplus quantity of 0 ~ 0.
03mm。
Sleeve and pump shaft is installed on, can use a hammer into, also can use press enter, interference quantity is large, you can also use 'hot pack' for installation, heating to the sleeve, make its heat swell, and the sleeve is installed on the pump shaft, make its natural cooling, at the end of the day, will set set of pump shaft parts turning to the original scale.
May be present on wear is very serious cracks of pump shaft, generally not be repaired, and spares for replacement.
(3) key way of fixing the centrifugal pump pump shaft keyway near surface, if damage is slight, the file can be used for repairing the light.
If appear serious tilt phenomenon, should use the welding to be repaired.
When repair, electric arc welding welding first out of the prototype of the keyway, then with boots, milling, planing, or manual filing, recover the keyway was dimension and shape.
In addition, still can use conversion keyway position to be repaired.
Namely originally the orientation of the keyway to full welding first, then by surface filing, the appearance of the radius of curvature and shaft neck, flattering and cohesion, in the end, the shaft turn 180 °, the relative should be on the back of the keyway position, in accordance with the original keyway dimension and shape, work out new keyway.
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