Device for expanding slot wedge in motor stator slot

Abstract

The invention discloses a device for expanding a slot wedge in a motor stator slot. The device comprises a connecting plate, the lower end of the connecting plate is fixedly connected with a mountingplate, the lower end of the mounting plate is fixedly connected with an upper connecting cover, a lower connecting cover is arranged below the upper connecting cover, and a supporting mechanism is jointly inserted and fixed between the upper connecting cover and the lower connecting cover. An upper anti-disengaging mechanism and a lower anti-disengaging mechanism are movably embedded in the upperportion and the lower portion of the inner cavity of the supporting mechanism respectively, an ejection mechanism is movably connected between the upper anti-disengaging mechanism and the lower anti-disengaging mechanism, and an expansion shaft is movably connected to the inner side face of the ejection mechanism. According to the device for expanding the slot wedge in the motor stator slot, the problem that the slot wedges in the stator slots protrude is further avoided through a mechanical expansion plate method, the number of the mechanical expansion plates is consistent with the number ofthe stator slots, and the insulating slot wedges in all the stator slots can be expanded at the same time; and an air cylinder is matched with a linear module to achieve cross-assembly-line carrying between the stators.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a device for expanding slot wedges in motor stator slots. Background technique [0002] The reason why the motor runs is mainly due to electromagnetic induction. When the stator winding of the motor is energized, the rotor generates a current through the short circuit of the end ring to generate a rotational torque on the rotor, and the motor can run. However, during the operation, the gap between the stator and the rotor is The main energy loss, if the insulating slot wedge in the stator slot is protruding, the rotor may collide with it, causing damage to the motor insulation and burning. Therefore, how to control the insulating slot wedge in the stator slot so as not to protrude from the stator slot is the key. At present, the expansion of the insulating slot wedge in the motor slot of the refrigeration compressor mainly expands the slot wedge at the slot opening, adopts a stru...

AI Technical Summary

Problems solved by technology

At present, the expansion of the insulation slot wedge in the motor slot of the refrigeration compressor mainly expands the slot wedge at the slot opening, and adopts the structure of 8 expanding pieces, and uses the method of expanding the inclined plane of the central axis. This method cannot effectively avoid the protruding problem of the slot wedge in the stator slot.

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