Slip ring structure of high-voltage winding motor

Abstract

The invention relates to a slip ring structure of a high-voltage winding motor, which comprises a rotor coil, a machine base, a conducting bar, a shaft, a hexagonal bolt, a washer, an inner end cap, a brush rod, a slip ring, soldering flux and a weftless tape, wherein the inner end cap is fixed at the machine base through the hexagonal bolt; the brush rod is screwed on the inner end cap, the slipring is sleeved on the shaft by a hot jacking process; the rotor coil is welded with one end of the conducting bar through the soldering flux, and the other end of the conducting bar is welded with the slip ring through the soldering flux; and after the welded part is cooled, the position, contacting with the shaft, of the conducting bar is bonded by the weftless tape. The slip ring structure of the high-voltage winding motor is simple and compact and achieves a considerable action effect; under a condition that structure material is not changed and a condition that the safety and reliabilityof the motor are guaranteed, the protection grade of the slip ring is improved by moving the whole slip ring structure into the inner part of the machine base and filtering carbon powder generated bythe slip ring by a filter.

Description

technical field [0001] The invention relates to a motor slip ring structure, in particular to a slip ring structure for a high-voltage winding motor. Background technique [0002] The starting performance of the wound induction motor is good, so the winding induction motor is mostly used in the occasions requiring high starting performance, such as scrapers, hoists, and hoisting cranes. As long as the resistance of the rotor circuit string is appropriate, the starting current can be reduced and the starting torque can be increased, so the two requirements of large capacity and heavy load of the motor can be met at the same time. [0003] Wound motors have outstanding advantages, but the slip ring design of wound motors is a bottleneck. 70% of the faults of wound motors come from slip rings. It can be seen that the special design of slip rings is particularly important. Generally, the slip ring is placed behind the motor base for ordinary wire-wound motors. The protection le...

AI Technical Summary

Problems solved by technology

Generally, the slip ring is placed behind the motor base for ordinary wire-wound motors. The protection level of the motor can reach IP54, but the slip ring can only reach IP23. The ring does not match the protection level of the whole motor, so a new slip ring structure is needed to meet the requirements of various aspects

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