When removing and installing the rotor of the aluminum motor housing, care should be taken not to damage the core and stator windings. Before pulling out the rotor, the air gap and winding ends under the rotor should be lined with thick cardboard, so as not to hurt the core and winding when pulling out the rotor. Removal of rotor of variable speed motor with small aluminum motor housing.
For the rotor within 30Kg, can be directly pulled out by hand, two hands each hold one end of the rotor, one hand to pull out the rotor, the other hand to hold the rotor core gradually outward. Removal of rotor of large aluminum shell variable speed motor. For large aluminum shell variable speed motor, if the rotor pumping ends protruding from the base part is long enough, use lifting equipment to lift out. But when lifting, attention should be paid to protect the journal, stator winding and rotor core air duct.
For the motor whose rotor shaft extends out of the base part is short, the sleeve steel pipe can be connected at one end or both ends of the rotor shaft. The left side of the rotor of the aluminum shell variable speed motor is set with a steel pipe, and then the rotor is lifted in two steps. Lifting with mechanical equipment available crane such as manual hoist.
The method of installing the rotor is the opposite of the step and the case of removing the rotor, but attention should also be paid to the protection of the various parts of the aluminum shell variable speed motor.
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