Stator, rotor and bearing one-time assembled precision guiding device for permanent magnetism motor

Abstract

The invention discloses a stator, rotor and bearing one-time assembled precision guiding device for a permanent magnetism motor. The device includes a rotor guiding tool and a stator guiding tool; theinner surface of the rotor guiding tool is an installation surface, and the rotor guiding tool is installed on the rotating shaft of a rotor; a bearing inner ring is located between the rotor guidingtool and the rotor; the stator guiding tool is detachably connected to the end cover of a driving end of a permanent magnetism motor; the outer surface of the stator guiding tool is an excircle guiding surface, and the diameter of the excircle guiding surface is not greater than the external diameter of the bearing inner ring; and the stator guiding tool is provided with an upper inner circle guiding surface matching the excircle guiding surface. The device has advantages of being simple in structure, good in assembling quality and high in assembling efficiency.

Description

technical field [0001] The invention relates to a permanent magnet motor, in particular to a permanent magnet motor stator, a rotor and a bearing which are combined and tightly guided at one time. Background technique [0002] Permanent magnet motor is a new type of energy-saving product, and its application is becoming more and more mature. The stator-rotor assembly process of permanent magnet motors is quite different from other motor stator-rotor assembly processes. The biggest difference is that the general motor stator-rotor assembly has no stator-rotor magnetic attraction, while the permanent-magnet motor stator-rotor assembly process has stator-rotor magnetic force. The effect of suction. Whether the assembly of the stator and rotor of medium and large permanent magnet motors is done automatically with special equipment or without special equipment, it is necessary to ensure that the centers of the stator and rotor of the motor coincide. There is always a magnetic a...

AI Technical Summary

Problems solved by technology

When the stator and rotor of the permanent magnet motor and the bearing are combined at one time, the assembly gap is likely to shift due to the magnetic attraction of the permanent magnet motor, resulting in damage to the outer surface of the inner ring of the bearing. For this reason, the general permanent magnet motor stator and rotor are assembled without Bearings, so that the combination of motor stator and rotor will not affect the quality of bearing assembly, but an additional bearing assembly process is required, which reduces production efficiency

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