Axial limiting structure of collecting ring of electromotor

Abstract

The invention discloses an axial limiting structure of a collecting ring of an electromotor. The axial limiting structure is arranged on an electromotor rotor assembly mainly comprising a rotor shaft, a collecting ring and an electromagnetic winding, wherein the collecting ring is sleeved at the left end of the rotor shaft; a ring groove is formed at the position of the left end surface of the collecting ring of the rotor shaft; and a circlip for a shaft is embedded in the ring groove to form the axial limiting structure of the collecting ring. The axial limiting structure disclosed by the invention has a simple structure and is simple in process and easy in realization; and the circlip for the shaft is adopted for axially limiting, so that the phenomena of loosening and falling can be avoided and the axial limiting of the collecting ring of the electromotor can be reliably realized.

Description

technical field [0001] The invention relates to a motor rotor structure, in particular to a motor rotor structure with a collector ring. Background technique [0002] The function of the motor collector ring is to cooperate with the commutator to realize mechanical commutation. The motor collector ring of the prior art is sleeved on the rotor shaft of the motor, and the end face of the motor collector ring is sleeved with a limit retaining ring, and the limit retaining ring A set screw is arranged on the upper part, and the set screw penetrates the limit retaining ring and is fastened on the rotor shaft of the motor, so as to realize the axial limit of the collecting ring of the motor. This kind of motor collector ring has a simple axial limit structure and can play an axial limit role. However, since the motor collector ring rotates with the rotor shaft of the motor, the set screws on the limit ring may be loosened and tightened. Once the set screw is loose, the limit reta...

AI Technical Summary

Problems solved by technology

The axial limit structure of this kind of motor collector ring is simple and can play the role of axial limit. However, because the motor collector ring rotates with the motor rotor shaft, the set screw on the limit stop ring may be loosened and tightened. Once the set screw is loose, the limit retaining ring will shift, and it will not be able to act as an axial limit on the motor collector ring, and the motor collector ring will not be able to function. The limit retaining ring and the set screw will loosen or even fall off. cause internal damage to the motor

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