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Series-excitation AC (Alternating Current) motor brush for soybemilk maker/juice extractor

An AC motor and juicer technology, which is applied in the field of series-excited AC motor brushes, can solve the problems of wear resistance, dust wear, poor use performance of brushes, and wear of brushes.

Active Publication Date: 2013-11-27
SUZHOU DONEKA NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brushes produced by this manufacturing process will have the following disadvantages: only after thermal curing at a temperature of about 200 ° C, the binder resin cannot be cracked into inorganic carbon, and it still exists in an organic structure, which may have food safety and environmental protection risks
And in terms of the performance of the brush, its stability is poor. With the extension of the application time and the aging of the binder resin, the performance of the brush gradually deteriorates, especially after the sharp deterioration of the wear resistance, dust wear will occur, almost in the The brushes will all wear out in a short time

Method used

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  • Series-excitation AC (Alternating Current) motor brush for soybemilk maker/juice extractor
  • Series-excitation AC (Alternating Current) motor brush for soybemilk maker/juice extractor
  • Series-excitation AC (Alternating Current) motor brush for soybemilk maker/juice extractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 22 kilograms of natural crystal graphite, 35 kilograms of electrochemical graphite, 6 kilograms of carbon black, 4 kilograms of polytetrafluoroethylene, 3 kilograms of fluorinated graphite, and 1 kilogram of refined salt powder and put them into a mixing container, and heat and dry mix for 60 minutes. When the temperature reaches 120°C, add 26 kg of asphalt and 3 kg of polyimide, and continue heating and kneading for 210 minutes to make each group fully kneaded evenly, then turn off the heating power, and let the kneaded paste material be free Cooling and granulation, when the temperature of the material is 70°C, discharge the material from the mixing container, and freely cool to room temperature; then grind the mixture granules, pass through a 160-mesh sieve, and mold them under a pressure of 16Mpa, and then put them in a protective The finished product can be obtained by roasting at a temperature of 600°C in an atmospheric environment.

[0032] Product of the pr...

Embodiment 2

[0035] Take 25 kilograms of natural crystal graphite, 33 kilograms of electrochemical graphite, 7 kilograms of carbon black, 3 kilograms of polytetrafluoroethylene, 2 kilograms of fluorinated graphite, and 1 kilogram of refined salt powder and put them into a mixing container, and heat and dry mix for 75 minutes, and wait for the material When the temperature reaches 130°C, add 27 kg of asphalt and 2 kg of polyimide, and continue heating and kneading for 180 minutes to make each group fully kneaded evenly, then turn off the heating power, and let the kneaded paste material be free in the kneaded state. Cooling and granulation, when the temperature of the material is 80°C, discharge the material from the mixing container, and freely cool to room temperature; then grind the mixture granules, pass through a 160 mesh sieve, and mold them under a pressure of 18Mpa, and then put them in a protective The finished product can be obtained by roasting at a temperature of 700°C under an a...

Embodiment 3

[0039] Take 28 kilograms of natural crystal graphite, 32 kilograms of electrochemical graphite, 6 kilograms of carbon black, 3 kilograms of polytetrafluoroethylene, 2 kilograms of fluorinated graphite, and 1 kilogram of refined salt powder and put them into a mixing container, and heat and dry mix for 90 minutes. When the temperature reaches 140°C, add 26 kg of asphalt and 2 kg of polyimide, and continue heating and kneading for 200 minutes to make each group fully kneaded evenly, then turn off the heating power, and let the kneaded paste material be free Cooling and granulation, when the temperature of the material is 75°C, discharge the material from the mixing container, and freely cool to room temperature; then grind the mixture granules, pass through a 160-mesh sieve, and mold them under a pressure of 17Mpa. The finished product can be obtained by roasting at a temperature of 650°C under an atmospheric environment.

[0040] Product of the present invention reaches technic...

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Abstract

The invention relates to a series-excitation AC (Alternating Current) motor brush for a soybean milk maker / a juice extractor. The series-excitation AC motor brush is characterized by comprising the following components of: natural crystal graphite, electrochemical graphite, carbon black, polytetrafluoroethylene, graphite fluoride, table salt and asphalt. The series-excitation AC motor brush disclosed by the invention has the advantages of high resistivity, good reversing performance, small sparkles during operation, good sliding contact characteristic, high mechanical strength, good abrasion performance, long service life and the like; and the series-excitation AC motor brush makes a bonder fully be cracked and makes a broken chain of an organic annular structure of the bonder form an organization structure of inorganic carbon when the bonder is roasted at the temperature of 600-700 DEG C, thus the series-excitation AC motor brush is safe and reliable.

Description

technical field [0001] The invention relates to a series-excited AC motor brush for a soybean milk machine / juicer. Background technique [0002] The series excited AC motor for soybean milk machine / juicer has the characteristics of small size, high speed, especially for food processing, so it has very high requirements for brushes, specifically: good commutation performance, low running noise, Excellent wear resistance, long service life and high environmental protection requirements. Because of its harsh commutation requirements, the resistivity of the brushes is required to be high. At present, the existing motor brushes are generally made of carbon and graphite powder as the base material, and resin as the bonding material, and are manufactured by kneading, grinding, molding and curing at a temperature of about 200°C. . The brushes produced by this manufacturing process have the following disadvantages: only after heat-setting at a temperature of about 200 ° C, the bin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R39/20H01R43/12C01B31/02A47J31/44A47J19/00A23C11/10C04B35/532
Inventor 吴爱民
Owner SUZHOU DONEKA NEW MATERIALS CORP LTD
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