Preparation method of electric brush for treadmill motor and electric brush prepared by the method

A technology of electric brushes and raw materials, applied in the fields of electric brushes for treadmill motors and their preparation, and electric brushes for electric motors, can solve the problems of easy occurrence of mechanical sparks, poor use performance of electric brushes, poor ability to suppress sparks, etc., and achieves mechanical processing. Excellent performance, strong anti-interference and long service life

Active Publication Date: 2017-04-05
SUZHOU DONSUN CARBONWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general brushes have poor performance and poor stability. The unit pressure of the brushes is too high, the resistance is large, and the hardness is high. The wear of the brush is intensified, the unit pressure is too small, the contact is unstable, the commutation performance is poor, and mechanical sparks are prone to occur
Especially poor wear resistance, poor commutation performance, poor anti-interference ability, often unable to meet the various requirements of the motor for the brush

Method used

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  • Preparation method of electric brush for treadmill motor and electric brush prepared by the method
  • Preparation method of electric brush for treadmill motor and electric brush prepared by the method
  • Preparation method of electric brush for treadmill motor and electric brush prepared by the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 1. Prepare materials according to the following weight ratio (kg):

[0057]

[0058] Among them, the additives include molybdenum disulfide and paraffin, and the weight ratio of molybdenum disulfide and paraffin is 1:1.5; the binder is bisphenol A epoxy resin, and its epoxy value is 0.25-0.45; the curing agent is selected from Latent curing agent T-31 curing agent (Changzhou Shanfeng Chemical Co., Ltd.);

[0059] 2) Put the raw materials of natural graphite, artificial graphite, expanded graphite, carbon black, additives, and curing agent in the kneading pot, turn on the heating device of the kneading pot, heat up to 150°C, and stop heating after mixing at 150°C for 2 hours. The material is cooled to ≤40°C to obtain a premix;

[0060] Heating to remove impurities such as moisture and ash in the raw material to ensure that the moisture content in the raw material is <0.5%.

[0061] 3) Dissolve 28kg of adhesive epoxy resin in 45kg of acetone and mix evenly to obtain ...

Embodiment 2

[0070] 1. Prepare materials according to the following weight ratio (kg):

[0071]

[0072]

[0073] Among them, the additives include molybdenum disulfide and paraffin, and the weight ratio of molybdenum disulfide and paraffin is 0.5:1; the binder is bisphenol A epoxy resin, and its epoxy value is 0.25-0.35; the curing agent is selected from Latent curing agent adipic acid dihydrazide (Wuxi Liangxi Fine Chemical Co., Ltd.).

[0074] 2) Put the raw materials of natural graphite, artificial graphite, expanded graphite, carbon black, additives, and curing agent in the kneading pot, turn on the heating device of the kneading pot, heat up to 170°C, mix at 170°C for 1.5h, and stop heating. After the material is cooled to ≤40°C, the premix is ​​prepared;

[0075] 3) Dissolve 20kg of binder epoxy resin in 35kg of acetone and mix well to obtain a binder solution;

[0076] 4) Add the binder solution into the premix and stir, mix evenly, stir for 1 hour, take out the material af...

Embodiment 3

[0083] 1. Prepare materials according to the following weight ratio (kg):

[0084]

[0085] Among them, the additives include molybdenum disulfide and paraffin, and the weight ratio of molybdenum disulfide and paraffin is 1.5:2; the binder is bisphenol A epoxy resin, and its epoxy value is 0.25-0.45; the curing agent is selected from Epoxy resin latent curing agent T-31 curing agent.

[0086] 2) Put the raw materials of natural graphite, artificial graphite, expanded graphite, carbon black, additives, and curing agent in the kneading pot, turn on the heating device of the kneading pot, heat up to 160°C, mix at 160°C for 1.5h, and stop heating. After the material is cooled to ≤40°C, the premix is ​​prepared;

[0087] 3) Dissolve 24kg of binder epoxy resin in 40kg of acetone and mix well to obtain a binder solution;

[0088] 4) Add the binder solution into the premix and stir, mix evenly, stir for 1.5 hours, take out the material after mixing evenly, place it at room temper...

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PUM

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Abstract

The present invention discloses a manufacturing method of an electric brush for a treadmill motor and an electronic brush manufactured using the method. The materials of the electric brush for the motor belong to the field of material science. The manufacturing method of the electric brush comprises: firstly, uniformly mixing graphite, carbon black, an additive, an adhesive and a firming agent under a condition of heating, then smashing and placing the mixture in a mold, and shaping the mixture via pressing; and secondly, conducting curing treatment, cutting, grinding, punching and line adding. The electric brush for the treadmill motor manufactured using the method is low in noise caused during operation, low in resistance, good in direction switching performance, powerful in interference resistance and long in service life. most importantly, the electric brush is high in abrasion resistance, low in noise and spark grade, sparkless in empty load, and good in product stability.

Description

technical field [0001] The invention relates to a brush for a motor, in particular to a brush for a treadmill motor and a preparation method thereof, belonging to the field of motors. And it is widely used in the medical industry, fitness equipment industry, sports industry and household treadmill motors. Background technique [0002] A motor brush is a device that transmits energy or signals between the fixed part and the rotating part of a rotating machine such as a motor or generator. Also known as carbon brush. Carbon brushes are generally made of pure carbon and coagulant. They are generally square in shape and are stuck on a metal bracket. There are springs inside to press it tightly on the rotating shaft. part. The carbon brush looks a bit like the rubber strip of a pencil, with wires leading out from the top. There are large and small volumes. Carbon brushes are used on commutators or slip rings as sliding contacts for leading and exporting current, and are wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R43/12H01R39/20
CPCH01R39/20H01R43/12
Inventor 朱约辉吴爱民林勇
Owner SUZHOU DONSUN CARBONWARE CO LTD
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