Method for rapidly grinding carbon brush of direct current motor

A DC motor, DC speed regulation technology, applied in grinding devices, grinding machine tools, metal processing equipment, etc., can solve the problems of low efficiency, slow carbon brush grinding speed of DC motor, long carbon brush grinding time, etc., to reduce grinding time. , highlight the substantive features, the effect of shortening the grinding time

Inactive Publication Date: 2013-05-01
烟台鲁宝钢管有限责任公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a method for fast grinding of carbon brushes of DC motors, which mainly solves the problems of slow grinding speed of carbon brushes of DC motors, long grinding time of carbon brushes and low efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1, first wrap the emery cloth on the commutator, then adjust the pressure of the carbon brush pressure spring from 1.2-1.6kg to 1.8-2.2kg, and use the principle that the friction force is proportional to the pressure to make the carbon brush The pressure increases, which increases the friction between the carbon brush and the commutator and accelerates the grinding speed of the carbon brush. The carbon brush is initially ground and formed by manual turning; since the current of the motor is very small during no-load operation, use abrasive cloth Wrap half of the commutator, the other half of the commutator is in contact with the carbon brush, adjust the pressure of the carbon brush compression spring from the original 1.2-1.6kg to 1.8-2.2kg, and use the DC speed controller to drive the motor to a lower Grind the carbon brush at the same speed; similarly, when the half of the carbon brush is ground, wrap the other half of the commutator with emery cloth, and grind...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for rapidly grinding a carbon brush of a direct current motor, and the method the following steps: a, winding abrasive cloth on a reverser, adjusting the pressure of a compression spring of the carbon brush from the original 1.2-1.6 kg to 1.8-2.2 kg, and initially grinding and forming the carbon brush by using a manual turning gear; b, winding the abrasive cloth on one half of the reverser and causing the other half of the reverser and the carbon brush to be contacted and electrified; adjusting the pressure of the compression spring of the carbon brush from the original 1.2-1.6 kg to 1.8-2.2 kg; using a direct current speed adjustor with the motor to grind the carbon brush at a lower speed; after grinding one half of the carbon brush, winding the abrasive cloth on the other half of the reverser; grinding the other half of the carbon brush; and c, removing the abrasive cloth; using the direct current speed adjustor with the motor to finely grind the carbon brush at a high speed; and after grinding the carbon brush, adjusting the pressure of the compression spring of the carbon brush to the original 1.2-1.6 kg. The method can be used for reducing thetime for grinding the carbon brush by the motor and greatly improving the working efficiency.

Description

Technical field: [0001] The invention relates to the technical field of electromechanical professional motor assembly, in particular to a method for quickly grinding carbon brushes of DC motors. Background technique: [0002] At present, to grind the carbon brushes of the existing DC motors, it is necessary to spread emery cloth on an arc-shaped mold, and grind the carbon brushes one by one. Wrap the abrasive cloth on it, turn it, and grind the carbon brush into shape, remove the gauze, and then use a DC welding machine to drive the motor to run without load to grind the carbon brush; there are the following disadvantages: 1. Because the carbon brush is ground with normal pressure, the compression spring The pressure is relatively low, and the friction between the carbon brush and the commutator is relatively small, resulting in slow grinding speed and low efficiency; 2. Since the DC motor is driven by a DC welding machine, the motor speed is low, which also causes the carbo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B24B37/00
Inventor 修瑞霞马正
Owner 烟台鲁宝钢管有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap