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Motor carbon brush grinding tool

A technology for grinding tools and carbon brushes, applied in the direction of manufacturing tools, grinding workpiece supports, grinding machines, etc., can solve the problems of operation risks, grinding carbon brushes, etc., to improve reliability, reduce operation time, and improve operation efficiency. Effect

Active Publication Date: 2019-04-09
CHINA NUCLEAR IND MAINTENANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a motor carbon brush grinding tool to solve the technical problem in the prior art that the grinding carbon brush needs to stop the motor and cause the operation risk

Method used

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specific Embodiment approach

[0040] Further, see figure 2 , as a specific embodiment of the motor carbon brush grinding tool provided by the present invention, the elastic pressing mechanism includes a guide post 821 fixedly connected to the mounting frame 81 and a rotating pressing plate 823 sleeved on the guiding post 821, the rotating pressing plate 823 and the mounting frame 81 is provided with a spring 822, the spring 822 is sleeved on the guide post 821, and the end of the guide post 821 away from the spring 822 is provided with a nut 824 for pressing the rotating pressure plate 823, the center line of the guide post 821 and the outer surface of the slip ring 4 The tangent to the circumference is perpendicular. Through the spring 822, the carbon brush is always tangent to the outer surface of the slip ring 4, so as to improve the matching effect between the polished carbon brush and the on-site slip ring.

[0041] The present invention also provides another embodiment of the elastic pressing mecha...

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Abstract

The invention provides a motor carbon brush grinding tool, and belongs to the technical field of motor overhaul assistance. The motor carbon brush grinding tool comprises a front support, a rear support and a rotary shaft, wherein the rotary shaft is supported between the front support and the rear support and is rotationally connected with the front support and the rear support. A sliding ring used for grinding a carbon brush is installed on the rotating shaft. The front support and / or the rear support is fixedly provided with a supporting rod parallel to the rotating shaft. At least one brush holder for installing the carbon brush is arranged on the supporting rod and comprises two mounting frames which are opened at 90 degrees towards the direction of the sliding ring. Each mounting frame is provided with a carbon brush which is tangent to the outer circumferential surface of the sliding ring. The motor carbon brush grinding tool is used for grinding a carbon brush of a nuclear power station RAM generator, the operation efficiency of replacing the carbon brush of the RAM generator in the nuclear power overhaul process can be improved, the operation time is shortened, risks brought to the generator by human factors are reduced, and the safety stability of a reactor is improved.

Description

technical field [0001] The invention belongs to the technical field of motor maintenance assistance, and more specifically relates to a motor carbon brush grinding tool. Background technique [0002] The RAM generator system (that is, the power supply system of the control rod drive mechanism) of the nuclear power plant is the control power supply system of the reactor control rods. It provides power to the reactor control rods through two generators, and the two circuits are mutually redundant. In the excitation system of the generator, the excitation current is in contact with the slip ring fixed on the rotor of the generator through four carbon brushes, and provides excitation current to the rotor winding. Under normal operating conditions of the reactor, the generator needs to be kept in the running state to generate electricity. There is always friction between the machine slip ring and the carbon brush, so under normal operating conditions, the carbon brush is constant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/26B24B19/22B24B41/06H01R43/12
CPCB24B19/22B24B19/26B24B41/06H01R43/12
Inventor 黄才文
Owner CHINA NUCLEAR IND MAINTENANCE
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