Three-phase motor rotor

Abstract

The invention belongs to the technical field of motor rotors, and particularly relates to a three-phase motor rotor, which comprises a rotor, a driving shaft, electric brushes and collecting rings, wherein the outer surface of the driving shaft is fixedly connected with collecting rings which are uniformly arranged; the outer surfaces of the two collecting rings are slidably connected with electric brushes; long grooves are formed in the inner walls of the two electric brushes; arc-shaped plates which are uniformly distributed are fixedly connected to the upper surfaces of the two long groovesthrough springs; each arc-shaped plate is attached to the rubber layer in an initial state; the upper surface of each arc-shaped plate is rotationally connected with a ball; arc-shaped grooves whichare uniformly distributed are formed in the inner walls of the two collecting rings; and the balls are in one-to-one correspondence with the arc-shaped grooves. The problems that most of collecting rings and electric brushes on an existing rotor are connected in a sliding mode, sparks can be generated between the collecting rings and the electric brushes in the rotating process of the rotor, and the motor rotor cannot be used in explosion-proof required places such as mines, underground, petroleum and chemical engineering are mainly solved.

Description

technical field [0001] The invention belongs to the technical field of motor rotors, in particular to a three-phase motor rotor. Background technique [0002] In layman's terms, the motor rotor is the rotating part of the motor, and the motor rotor is also the rotating part of the motor. The motor consists of two parts, the rotor and the stator. It is used to realize the conversion device of electrical energy and mechanical energy and mechanical energy and electrical energy. The motor rotor is divided into two types: inner rotor rotation mode and outer rotor rotation mode. The rotation mode of the inner rotor is that the core body in the middle of the motor is a rotating body, which outputs torque (referring to the motor) or receives energy (referring to the generator). The rotation mode of the outer rotor is to use the outer body of the motor as the rotating body, and different modes facilitate the application in various occasions. [0003] With the development of society...

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies in the prior art, the present invention proposes a three-phase motor rotor. The present invention is mainly used to solve the problem that most of the current collector rings and brushes on the rotor are slidingly connected. There will be sparks between the electric ring and the brush, and this kind of motor rotor is often not used in mines, underground, petroleum, chemical and other places with explosion-proof requirements.

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