CN104985508B - Grinding method for motor carbon brush - Google Patents
Grinding method for motor carbon brush Download PDFInfo
- Publication number
- CN104985508B CN104985508B CN201510261522.1A CN201510261522A CN104985508B CN 104985508 B CN104985508 B CN 104985508B CN 201510261522 A CN201510261522 A CN 201510261522A CN 104985508 B CN104985508 B CN 104985508B
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- China
- Prior art keywords
- motor
- carbon brush
- hours
- glass paper
- grinding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
Abstract
The invention discloses a grinding method for a motor carbon brush. The method comprises following steps: 1. wrapping glass paper with the thickness being 2.5-3 mm around a commutator, and enabling a motor to run with 20-30% load for 2-4 hours; 2. removing the glass paper mentioned in the first step, winding strip-shaped glass paper with the thickness being 1.5-2 mm around the commutator in a manner that the glass paper is wound with a lead angle being 45-60 degrees, and enabling the motor to run for 2-4 hours; 3. removing the glass paper mentioned in the second step, wrapping glass paper with the thickness being 1 mm around the commutator, and enabling the motor to run for 3-5 hours; 4. removing the glass paper mentioned in the third step, and enabling the motor to run with 20-30% load for 2-4 hours; 5. enabling the motor to run with 50-60% load for 2-4 hours; and 6. lifting the motor to the rated load. According to the invention, each step is clearly and specifically detailed, so that workers can conveniently perform the operation according to the method mentioned above, and the steps have important guiding significance for newcomers. By employing the method, the time for grinding the carbon brush is greatly saved, the time for grinding the carbon brush can be reduced to 11-21 hours from 24-48 hours needed by an original method, and the grinding efficiency in improved.
Description
Technical field
The invention belongs to the technical field of motor, more particularly to the electrical connecting element of motor.
Background technology
Carbon brush be between motor or electromotor or the standing part and rotating part of other rotating machineries transmit energy or
The device of signal, it is usually that pure carbon adds coagulator to make, and external form is usually square, is stuck on metal rack, and there is spring the inside
It is pressed in rotating shaft, when motor is rotated, electric energy coil is conveyed to into by diverter, as its main component is
Carbon, referred to as carbon brush, it is easy to wear, needs to carry out periodic maintenance replacing.
When carbon brush is changed, needs are ground to new carbon brush, in order that carbon brush is contacted with diverter well, new carbon brush should
This carries out mill radian, and mill radian is carried out typically on motor.A thin glass paper is placed between carbon brush and diverter, just
Under normal spring pressure, carbon brush is ground along motor direction of rotation, sand paper should cling diverter as far as possible, until carbon brush cambered surface is kissed
Close, then remove sand paper, dust is blown off with compressed air, then use soft cloth wiped clean.After mill arc, motor is first with 20-30% loads
Operating more than 14 hours, makes carbon brush and diverter break-in, and sets up uniform oxide film.Step up electric current again to bear to specified
Lotus, whole milling time is between 24-48 hours.
Be ground using said method, take it is longer, grinding it is less efficient, and grind operation it is indefinite, compared with
All it is by experience more, it has not been convenient to which new hand is operated.
The content of the invention
The present invention provides a kind of Ginding process of carbon brush for electric machine, simulates substantially real work with the grinding for solving present carbon brush
State, takes the indefinite problem of operation that is longer and grinding.
In order to solve above-mentioned technical problem, the present invention provides following technical scheme:A kind of Ginding process of carbon brush for electric machine,
Comprise the following steps：
The first step, glass paper of the thickness for 2.5-3mm is rolled on the curved surfaces of diverter, by motor with 20-30%
Load running 2-4 hours；
Second step, the glass paper of the first step is removed, and glass paper of the thickness for 1.5-2mm is cut into 5-8mm width
The strip of degree, the glass paper of strip is wrapped on the curved surfaces of diverter with the lead angle of 45-60 degree, motor is transported
Turn 2-4 hours；
3rd step, the glass paper of second step is removed, and the glass paper that thickness is 1mm is rolled in the arc table of diverter
On face, by motor rotation 3-5 hours；
4th step, the glass paper of the 3rd step is removed, by motor with 20-30% load running 2-4 hours；
5th step, by motor with 50-60% load running 2-4 hours；
6th step, the grinding that motor is promoted to rated load, i.e. carbon brush is completed.
Compared with prior art, it is an advantage of the current invention that：Thicker glass paper is first passed through, increases carbon brush and glass sand
Pressure between paper, realizes preliminary grinding；Again by the glass paper of thicker strip, the interval of carbon brush and glass paper is realized
Property grinding, be easy to grind carbon brush chamfering；Then fine grinding is carried out by relatively thin glass paper；Finally, simulate actual work shape
State, and gradually increase load, make carbon brush fit with diverter, realize last break-in.Each step has been carried out clearly and
Detailed regulation（Including operation and time）, it is easy to workman to be operated according to the method described above, for new hand has very strong guidance
Meaning.Using this method, while Grinding Quality is ensured, the milling time of carbon brush can be greatly saved, by the grinding of carbon brush
Time was down to 11-21 hours from former 24-48 hours, improve grinding efficiency.
Further, in the first step, by realizing preliminary grinding compared with heavy sheet glass sand paper, because of the pressure between carbon brush and glass paper
It is maximum relative to other steps, is capable of achieving rapidly preliminary grinding, therefore the duration of runs of motor is 2 hours.
Further, in second step, realize that intermittent is ground by thicker strip glass paper, and realize just
Mill, is ground with carbon brush because being replaced with diverter compared with heavy sheet glass sand paper, and the pressure between carbon brush and glass paper is dynamic change,
The width of glass paper and the duration of runs take intermediate value most preferably, therefore the width of glass paper is 6mm, and the duration of runs of motor is 3
Hour.
Further, in the third step, fine grinding is realized by relatively thin glass paper, needs the time of grinding longer, therefore motor
The duration of runs be 5 hours.
Further, in the 4th step, it is the break-in for heuristically simulating working condition, needs longer running-in time, therefore
The duration of runs of motor is 4 hours.
Further, in the 5th step, it is the break-in that working condition is simulated in the way of halfload, when needing longer break-in
Between, thus the duration of runs of motor be 4 hours.
Specific embodiment
Embodiment 1
A kind of Ginding process of the carbon brush for electric machine in the present embodiment, comprises the following steps：
The first step, the carbon brush for more renewing：To guarantee freely up and down to move in brush carrier, the gap of carbon brush and brush carrier inwall
Between 0.1-0.3 millimeters, among avoiding carbon brush and brush carrier because of the excessive generation swing in gap.Brush carrier lower limb is away from rectification sublist
The distance in face should be maintained at 2 millimeters.Such as apart from too small, brush carrier is easily touched hinders diverter, and apart from excessive, carbon brush easily trembles
And cause breakage.On same motor, the carbon brush of same model should be used in principle, but it is special for indivedual commutations
Difficult large and middle size motor, can adopt Shuangzi carbon brush, and which slips into side and adopts greasy property good, skid off side using supression spark ability
Strong carbon brush, so that the operation of carbon brush is improved.The unit pressure for imposing on each carbon brush of same motor should make every effort to uniform,
In order to avoid electric current distribution is uneven, indivedual carbon brush are caused to produce overheated and spark.The unit pressure of carbon brush should be by " carbon brush technical performance
Table " selecting,
Second step, glass paper of the thickness for 3mm is rolled on the curved surfaces of diverter, and determines glass paper more
It is securely fixed on diverter, by motor with 30% load running 2 hours.By increasing 3mm's between diverter and carbon brush
Glass paper, the glass paper for making carbon brush and being close to larger pressure on diverter, so as to reach rapidly preliminary grinding.
3rd step, the glass paper of second step is removed, and glass paper of the thickness for 1.5mm is cut into 6mm width
Strip, the glass paper of strip is wrapped on the curved surfaces of diverter with 45 degree of lead angle, and determines the glass of strip
Glass sand paper was tively firm fixed on diverter, by motor rotation 3 hours.The glass paper of 3mm is divided in the way of being spaced
, on diverter, when carbon brush is contacted with the glass paper of strip, the pressure between carbon brush and diverter is larger for cloth；When carbon brush with
When directly contacting with diverter, the pressure between carbon brush and diverter is less, carries out preliminary grinding to carbon brush by dynamic pressure.Glass
There is the difference in height of 1.5mm between sand paper and diverter, the chamfering to carbon brush can be facilitated to be ground.Because considering difference in height not
It is preferably too big, so in step, the thickness of glass paper is no more than 2mm.
4th step, the glass paper of the 3rd step is removed, and the thin glass paper that thickness is 1mm is rolled in the arc of diverter
On surface, and determine that thin glass paper is tively firm fixed on diverter, by motor rotation 5 hours.In this step, select
Fine grinding is carried out to carbon brush with the thin glass paper of thinner thickness, at this moment, the pressure between carbon brush and glass paper can reduce, therefore
The time of grinding can compared between the step of it is long.
5th step, the glass paper of the 4th step is removed, and by motor with 30% load running 4 hours, is loading less feelings
Under condition, the break-in of carbon brush and diverter is realized.
6th step, by motor with 60% load running 4 hours, realizes the break-in of carbon brush and diverter with halfload.
7th step, the grinding that motor is promoted to rated load, i.e. carbon brush is completed.
Embodiment 2
The present embodiment with the difference of embodiment 1 is：The run time of motor in second step is changed to 4 hours, will
In 3rd step, the run time of motor is changed to 4 hours, and the run time of motor in the 4th step is changed to 4 hours, by the 5th step
The run time of middle motor is changed to 3 hours.
Embodiment 3
The present embodiment with the difference of embodiment 1 is：The load of motor in second step is changed to into 20%, by the 5th step
The load of middle motor is changed to 20%, and the load of motor in the 6th step is changed to 50%.
The grinding result of above-mentioned 3 embodiments is as follows：1st, the carbon brush in 3 embodiments normally can be used, only faint
Spark point, the temperature of carbon brush is also in normal range.2nd, embodiment 1 is compared with embodiment 2, although both total times
It is identical, but the carbon brush spark point ground by embodiment 1 is less, and more fits with the shape of diverter, it was demonstrated that by fine grinding when
Between increase in preliminary grinding, its effect is not good.Preliminary grinding with the short period, fine grinding with the long period, in the situation that total time is certain
Under, grinding effect is preferable.3rd, embodiment 1 is compared with embodiment 3, both time distribution are identical, but the load of motor is different,
Load in embodiment 1 is the upper limit, and the load in embodiment 3 is lower limit, in embodiment 1 in the duty ratio embodiment 3 of motor
Load is high, and the carbon brush spark point that embodiment 1 is ground is less, and lapped face is more smooth.Prove that carbon brush is resistant in grinding
By load higher, and at higher loads, the effect of grinding is preferable.
For a person skilled in the art, on the premise of without departing from present configuration, some changes can also be made
Shape and improvement, these should also be considered as protection scope of the present invention, and these are all without the effect and patent for affecting the present invention to implement
Practicality.
Claims (6)
1. a kind of Ginding process of carbon brush for electric machine, it is characterised in that comprise the following steps：
The first step, glass paper of the thickness for 2.5-3mm is rolled on the curved surfaces of diverter, by motor with 20-30% loads
Operating 2-4 hours；
Second step, the glass paper of the first step is removed, and glass paper of the thickness for 1.5-2mm is cut into 5-8mm width
Strip, the glass paper of strip is wrapped on the curved surfaces of diverter with the lead angle of 45-60 degree, by motor rotation 2-
4 hours；
3rd step, the glass paper of second step is removed, and the glass paper that thickness is 1mm is rolled in the curved surfaces of diverter
On, by motor rotation 3-5 hours；
4th step, the glass paper of the 3rd step is removed, by motor with 20-30% load running 2-4 hours；
5th step, by motor with 50-60% load running 2-4 hours；
6th step, the grinding that motor is promoted to rated load, i.e. carbon brush is completed.
2. the Ginding process of carbon brush for electric machine as claimed in claim 1, it is characterised in that：In the first step, during the operating of motor
Between be 2 hours.
3. the Ginding process of carbon brush for electric machine as claimed in claim 1, it is characterised in that：In second step, the width of glass paper
Spend for 6mm, the duration of runs of motor is 3 hours.
4. the Ginding process of carbon brush for electric machine as claimed in claim 1, it is characterised in that：In the third step, during the operating of motor
Between be 5 hours.
5. the Ginding process of carbon brush for electric machine as claimed in claim 1, it is characterised in that：In the 4th step, during the operating of motor
Between be 4 hours.
6. the Ginding process of carbon brush for electric machine as claimed in claim 1, it is characterised in that：In the 5th step, during the operating of motor
Between be 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261522.1A CN104985508B (en) | 2015-05-21 | 2015-05-21 | Grinding method for motor carbon brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510261522.1A CN104985508B (en) | 2015-05-21 | 2015-05-21 | Grinding method for motor carbon brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104985508A CN104985508A (en) | 2015-10-21 |
| CN104985508B true CN104985508B (en) | 2017-04-12 |
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ID=54297463
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510261522.1A Active CN104985508B (en) | 2015-05-21 | 2015-05-21 | Grinding method for motor carbon brush |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984703Y (en) * | 2006-11-29 | 2007-12-05 | 许晓华 | Carbon brush arc milling device |
| CN102225531A (en) * | 2011-05-21 | 2011-10-26 | 烟台鲁宝钢管有限责任公司 | Method for rapidly grinding carbon brush of direct current motor |
| CN103128641A (en) * | 2011-11-24 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Generator carbon brush polishing tool |
| CN203650182U (en) * | 2013-12-02 | 2014-06-18 | 山西大唐国际运城发电有限责任公司 | Generator electric brush radian polishing machine |
| CN203779273U (en) * | 2014-04-24 | 2014-08-20 | 青岛港国际股份有限公司 | Multifunctional brush grinding machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008114320A (en) * | 2006-11-02 | 2008-05-22 | Hitachi Koki Co Ltd | Power tool and its insulation method |
-
2015
- 2015-05-21 CN CN201510261522.1A patent/CN104985508B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200984703Y (en) * | 2006-11-29 | 2007-12-05 | 许晓华 | Carbon brush arc milling device |
| CN102225531A (en) * | 2011-05-21 | 2011-10-26 | 烟台鲁宝钢管有限责任公司 | Method for rapidly grinding carbon brush of direct current motor |
| CN103128641A (en) * | 2011-11-24 | 2013-06-05 | 天津市天发重型水电设备制造有限公司 | Generator carbon brush polishing tool |
| CN203650182U (en) * | 2013-12-02 | 2014-06-18 | 山西大唐国际运城发电有限责任公司 | Generator electric brush radian polishing machine |
| CN203779273U (en) * | 2014-04-24 | 2014-08-20 | 青岛港国际股份有限公司 | Multifunctional brush grinding machine |
Non-Patent Citations (1)
| Title |
|---|
| 300MW发电机碳刷运行及问题分析;王惠，严巍等;《内蒙古石油化工》;20140630(第12期);第82-83页 * |
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| Publication number | Publication date |
|---|---|
| CN104985508A (en) | 2015-10-21 |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20181214 Address after: 401120 No. 2 Lanxin Avenue, Huixing Street, Yubei District, Chongqing, 17 Blocks 4, Chongqing International Hardware and Electrical City Patentee after: Chongqing Dianxu Technology Co., Ltd. Address before: 563000 Tianjin Road, Huichuan District, Zunyi City, Guizhou Province (Tianyi Factory) Patentee before: Zunyi Tianyi Liwei Electromechanical Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191219 Address after: Room 602, building H2, Changyuan road international enterprise community, Wuqing Development Zone, Tianjin Patentee after: Tianjin Lei Sheng Technology Co., Ltd. Address before: 401120 No. 2 Lanxin Avenue, Huixing Street, Yubei District, Chongqing, 17 Blocks 4, Chongqing International Hardware and Electrical City Patentee before: Chongqing Dianxu Technology Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200619 Address after: 226100 group 7, Dongcun, Baochang Town, Haimen City, Nantong City, Jiangsu Province Patentee after: Haimen Hualian electromechanical Co., Ltd Address before: Room 602, building H2, Changyuan road international enterprise community, Wuqing Development Zone, Tianjin Patentee before: TIANJIN LEISHENG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |