Permanent magnet motor rotor rear mounting weight balance disc

Abstract

The utility model relates to a rear installation weight increasing balance disc of permanent magnet motor rotor, including installation inner ring and weight increasing balance ring, the weight increasing balance ring is fixed on the outer circle of installation inner ring, installation inner ring and weight increasing balance ring are coaxial arrangement, the weight increasing hole is set up on the weight increasing balance ring, the axis of weight increasing hole is perpendicular to the plane where weight increasing balance ring is, weight increasing hole is evenly spaced distribution around the axis of weight increasing balance ring, weight increasing hole is blind hole, all weight increasing hole diameter and depth are equal, and the opening end of weight increasing hole all faces the same side of weight increasing balance ring. The utility model can reduce the inertia, improve dynamic balance adjustment efficiency, the utility model can reduce rotor scrap rate, reduce permanent magnet damage risk, aiming at small batch stage, the utility model can develop fast, and the trial production progress is accelerated.

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