Life gauge brush

Abstract

A life gauge brush include brush body, Brush wire and conductive parts, and the brush body is connected with the conductive part through the brush wire, Between that brush wire and the conductive part, an insulating plate, a service life gauge and a shock absorb layer are sequentially arrange from top to bottom, the service life gauge comprises a horizontal part, a vertical part and a mounting part which are integrally arranged, two ends of the vertical part are respectively connected with the horizontal part and the mounting part, and a triangular pressure plate is symmetrically arranged on two sides of the conductive part close to one end of the insulating plate. The invention has the advantages of reasonable design, simple structure and convenient installation. Under the condition of normal operation of the motor, the invention can check the specific use degree of the brush, whether the brush needs to be replaced or not, accurately judge the service life of the brush, greatly prolongs the service life of the brush, saves the stopping cost, realizes reliable and simple operation and the use situation of the brush is clear at a glance.

Description

technical field [0001] The invention belongs to the technical field of electric motors, and in particular relates to life scale electric brushes. Background technique [0002] The function of the brush is to introduce the rotor current required for the operation of the motor into the rotor coil through the connecting piece on the slip ring. At the same time, because the brush is in sliding contact with the moving parts during the working process, when the mechanical wear reaches a certain level, the brush will be damaged. Poor contact with the collector ring will affect the normal work; what's more, when the brushes are exhausted, the springs will be stuck in and the commutator will be worn out, causing great damage to the motor, resulting in high maintenance costs and personal injury. cause great safety hazards. In the prior art, people cannot find out the situation that the brushes are used up early, and it is too late when the motor is seriously worn out to affect the wo...

AI Technical Summary

Problems solved by technology

[0002] The function of the brush is to introduce the rotor current required for the operation of the motor into the rotor coil through the connecting piece on the slip ring. At the same time, because the brush is in sliding contact with the moving parts during the working process, when the mechanical wear reaches a certain level, the brush will be damaged. Poor contact with the collector ring will affect the normal work; what’s more, when the brushes are exhausted, the springs will be stuck in and the commutator will be worn out, causing great damage to the motor, resulting in high maintenance costs and personal injury. cause great safety hazard

In the prior art, people cannot find out the situation that the brushes are used up early, and it is too late when the motor is seriously worn out to affect the work, and if the machine is shut down to check the use of the brushes, it will not only affect the production efficiency, but also generate high costs

Images