A vacuum cleaner motor brush preparation method and a brush prepared by the method

A technology for vacuum cleaners and electric brushes, which is applied in the field of electric brushes for vacuum cleaner motors and their preparation, and electric brushes for electric motors, can solve the problems of poor stability of domestic brushes, can not meet customer requirements, and poor resistance stability coefficient, and achieve mechanical Excellent processing performance, good motor commutation performance, and stable performance

Active Publication Date: 2016-02-10
SUZHOU DONEKA NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general brushes have poor service performance, poor stability, poor resistance stability coefficient, and low specific gravity. The existing brushes for vacuum cleaner motors generally have poor wear resistance, poor spark suppression ability, and poor efficiency stability. The wear of the brush increases the contact instability, 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 requirem

Method used

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  • A vacuum cleaner motor brush preparation method and a brush prepared by the method
  • A vacuum cleaner motor brush preparation method and a brush prepared by the method
  • A vacuum cleaner motor brush preparation method and a brush prepared by the method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 1. Prepare materials according to the following weight ratio (kg):

[0063]

[0064]

[0065] Among them, the additives include molybdenum disulfide and carbon fiber, the weight ratio of molybdenum disulfide and carbon fiber is 1.5:2.5; the length of carbon fiber is 1-5mm, preferably 1-3mm; the binder is bisphenol A epoxy resin, Its epoxy value is 0.25-0.45; the curing agent is a latent curing agent T-31 curing agent (Changzhou Shanfeng Chemical Co., Ltd); the selected particle size of the petroleum coke is 300-400 mesh spherical cooked coke, preferably 300 mesh ;

[0066] 2) Put the raw materials of natural graphite, artificial graphite, petroleum coke, additives, and curing agent in the kneading pot, turn on the stirring device of the kneading pot, mix at a constant temperature (20°C) for 2 hours, and stop discharging to obtain a premix ;

[0067] 3) the binder epoxy resin of 23kg is dissolved in the acetone of 42kg, mix homogeneously, make binder solution;

...

Embodiment 2

[0077] 1. Prepare materials according to the following weight ratio (kg):

[0078]

[0079] Among them, the additives include molybdenum disulfide and carbon fiber, the weight ratio of molybdenum disulfide and carbon fiber is 1.5:3.5; the length of carbon fiber is 1-3mm; the binder is bisphenol A epoxy resin, and its epoxy value is 0.25 -0.35; the curing agent is a latent curing agent adipate dihydrazide (Wuxi Liangxi Fine Chemical Co., Ltd); the selected particle size of the petroleum coke is 300-400 mesh needle-shaped cooked coke;

[0080] 2) Put the raw materials of natural graphite, artificial graphite, petroleum coke, additives, and curing agent in the kneading pot, turn on the stirring device of the kneading pot, mix at a constant temperature (25°C) for 1.5 hours, and then stop discharging to obtain a premix;

[0081] 3) the adhesive epoxy resin of 25kg is dissolved in the acetone of 50kg, mix homogeneously, make adhesive solution;

[0082] 4) Add the binder solution...

Embodiment 3

[0089] 1. Prepare materials according to the following weight ratio (kg):

[0090]

[0091] Among them, the additives include molybdenum disulfide and carbon fiber, the weight ratio of molybdenum disulfide and paraffin wax is 1.5:3; the length of carbon fiber is 1-5mm; the binder is bisphenol A epoxy resin, and its epoxy value is 0.25 -0.35; the curing agent is a latent curing agent adipate dihydrazide (Wuxi Liangxi Fine Chemical Co., Ltd); the selected particle size of the petroleum coke is 300-400 mesh spherical cooked coke;

[0092] 2) Put the raw materials of natural graphite, artificial graphite, petroleum coke, additives, and curing agent in the kneading pot, turn on the stirring device of the kneading pot, mix at a constant temperature (35°C) for 2.5 hours, and then discharge to obtain a premix ;

[0093] 3) the binder epoxy resin of 18kg is dissolved in the acetone of 39.6kg, mix homogeneously, make binder solution;

[0094] 4) Add the binder solution into the pre...

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Abstract

The invention discloses a vacuum cleaner high-speed high-efficiency motor brush preparation method and a brush prepared by the method. Constituent materials of the motor brush belong to the field of material science. The brush preparation method comprises, to begin with, mixing graphite, petroleum coke, additive, binders and curing agents uniformly under an ambient temperature condition, smashing the mixture and then, placing the smashed mixture into a die; carrying out compression moulding; and then, carrying out curing processing, cutting, grinding machine, hole drilling and line filling. The vacuum cleaner high-speed high-efficiency motor brush prepared by the method is low in resistance in the using process, good in commutating performance and long in service life, and more importantly, has high wear resistance, low spark grade and good product stability.

Description

technical field [0001] The invention relates to a brush for a motor, in particular to a brush for a vacuum cleaner motor and a preparation method thereof, belonging to the field of 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 widely used in many electrical equipment. It has good electrical conductivity, thermal conductivity and lubricating proper...

Claims

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Application Information

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IPC IPC(8): H01R43/12H01R39/20
Inventor 朱约辉吴爱民林勇
Owner SUZHOU DONEKA NEW MATERIALS CORP LTD
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