CN107634429A - A kind of method by suspension impregnation to brush contact susface - Google Patents
A kind of method by suspension impregnation to brush contact susface Download PDFInfo
- Publication number
- CN107634429A CN107634429A CN201610566839.0A CN201610566839A CN107634429A CN 107634429 A CN107634429 A CN 107634429A CN 201610566839 A CN201610566839 A CN 201610566839A CN 107634429 A CN107634429 A CN 107634429A
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- Prior art keywords
- brush
- suspension
- grinding
- susface
- contact
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Abstract
It is homogenously mixed together the invention discloses a kind of method by suspension impregnation to brush contact susface, including by the fluent material comprising waterglass and resin and granular solid material, suspension is made；Brush contact susface is placed in above-mentioned suspension, makes the suspension impregnation to the contact surface of brush；Wherein, the solid material includes grinding-material and conductive material.The inventive method by grinding-material come increase dipping after brush contact susface anti-wear performance, electric conductivity is strengthened by conductive material, contact resistance rise when brush contacts with engine commutator after impregnating is avoided, the anti-wear performance and service life of brush are added on the premise of ensureing that properties of brush is unaffected.
Description
Technical field
The invention belongs to machine field, is related to a kind of brush, more particularly to a kind of by suspension impregnation to brush contact susface
On method.
Background technology
Brush is to make sliding contact with motor movement part and form a kind of conductive component for the connection that is powered, as being led in motor
Enter the contact of derived current, be the important composition part of motor.The electricity that brush contact susface is formed with commutator contact surface connects
Tactile abundant degree has a great influence to motor operation, and brush installs initial stage, it is necessary to which load pre-grinding for some time could be formed
Preferable fully contact, therefore generally, motor need to carry out preliminary pre-grinding guarantee brush and commutation after completing to assemble
Sufficient face contact is formed between device.
Insufficient contact surface has both sides reason, is on the one hand the deviation of brush radian face structure in itself, separately
On the one hand it is then the other defects such as out-of-flatness or the corrosion of commutator face structure.
In order to be mitigated or eliminated the influence of the other defects such as the out-of-flatness of commutator face structure or corrosion, accelerate brush with
Break-in between commutator, makes sufficient face is more quickly formed between brush and commutator and contacts, it is necessary in the radian face of brush
A kind of upper abrasive structure of configuration, the deviation in brush radian face or the out-of-flatness or corrosion of commutator face etc. are eliminated by the structure
Other defect, and then replace motor pre-grinding process.
Patent CN101931157A discloses a kind of carbon brush, and the carbon brush is configured with one kind on the contact surface of its brush holder and ground
Structure is ground, there is one kind to increase attached dose and a kind of abrasive grains, contact surface is adhered to by will increase attached dose first for the abrasive structure
On, then abrasive grains or location structure with abrasive grains adhere to attached dose of increasing is upper to prepare the carbon brush.Therefore, the invention
In attached dose of increasing and abrasive grains be double-layer structure, and need to adhere to respectively on the contact surface of carbon brush.
The content of the invention
The purpose of the present invention is the problem of presence for prior art, there is provided a kind of by suspension impregnation to brush contact susface
On method, including：
Fluent material comprising waterglass and resin and granular solid material are homogenously mixed together, is made and suspends
Liquid；
Brush contact susface is placed in above-mentioned suspension, makes the suspension impregnation to the contact surface of brush.
Wherein, the percentage by weight that the waterglass accounts for the suspension is 25-30%.
Waterglass is liquid sodium silicate, is a kind of colorless and transparent thick liquid, modulus is in 3.10-3.40.
Wherein, the weight of the fluent material comprising waterglass and resin and the granular solid material
For：5-8：2-5.
Particularly, the parts by weight of the fluent material and the granular solid material comprising waterglass and resin are matched somebody with somebody
Than being preferably：6-7：3-4.
Wherein, the weight of the waterglass and the resin is 3-5：4.5-7.
Especially, the weight of the waterglass and the resin is preferably 4-5：5-6.
The resin selects epoxy resin, and the solid material is adhered on brush contact susface.
Wherein, the solid material includes grinding-material and conductive material.
Particularly, the weight of the grinding-material and the conductive material is 2-7:4-8.
Especially, the weight of the grinding-material and the conductive material is preferably 3-5:5-7.
Wherein, the grinding-material includes the one or more in carborundum, quartz and aluminum oxide.
Particularly, the granule size of the grinding-material is 10-150 μm.
The carborundum is black gray expandable powder, and granularity is 200-300 mesh；Carborundum is hexagonal crystallographic texture material, chemistry
Stable performance, thermal coefficient of expansion is small, has a preferable anti-wear performance, the addition of carborundum, can increase the wearability of suspension
Can, and then increase the service life of carbon brush.
The quartz is off-white powder, has greasy luster, its hard wear resistant and chemical property stabilization；Quartz adds
Enter, the anti-wear performance of suspension can be increased, and then increase the service life of carbon brush.
The aluminum oxide is α-Al2O3, it is white powder, trigonal system structure, hardness is higher；The addition of aluminum oxide, can be with
Increase the anti-wear performance of suspension, and then increase the service life of carbon brush.
Wherein, the conductive material includes one or more of in graphene, carbon fiber and conductive black.
Particularly, the granule size of the conductive material is about 5-100 μm.
The graphene is the highly conductive type powder of black, and size distribution D50≤20 μm, electric conductivity is excellent, easily scattered.
The carbon fiber is carbon fiber powder, and phosphorus content ＞ 95%, granularity is 200-500 mesh, and electric conductivity is excellent, is easily divided
Dissipate.
The conductive black phosphorus content ＞ 98%, granularity are 300-1000 mesh, and its resistivity is low, and granularity is small, specific surface area
Greatly, it is easily scattered.
Conductive material has preferable electric conductivity, contact resistance liter when will not cause the brush to be contacted with engine commutator
It is high, it is ensured that properties of brush is unaffected.
Wherein, by the way that the fluent material and solid material are homogenously mixed together, suspension, the suspension is made
It is impregnated on the contact surface of brush, abrasive structure is formed on the contact surface of brush, brush contact susface is eliminated by the structure
The other defects such as the out-of-flatness or corrosion of deviation or commutator face, and then replace motor pre-grinding process.
The advantages of the present invention are as follows：
The present invention is made by the way that the fluent material comprising waterglass and resin and solid material are uniformly mixed
Suspension, then on suspension impregnation to brush contact susface, will make that there is abrasive structure on the contact surface of brush；Wherein solid material
Comprising grinding-material and conductive material, increase the anti-wear performance of brush contact susface after dipping by grinding-material, pass through conduction
Material reinforcement electric conductivity, contact resistance rise when brush contacts with engine commutator after impregnating is avoided, ensureing brush
The anti-wear performance and service life of brush are added on the premise of energy is unaffected；Waterglass in the present invention is fluent material,
But it is solidified into solid after the contact surface of brush is impregnated into, the waterglass after solidification is a kind of grinding-material, resistance to
It is good to grind performance, the anti-wear performance of suspension can be increased.The inventive method cost of material is cheap, and source is easy to get, preparation method letter
It is single.
Embodiment
The invention will now be further described with reference to specific embodiments, advantages of the present invention and feature will be with description and
It is apparent.But these embodiments are only exemplary, do not form any restrictions to the scope of the present invention.People in the art
Member to the details and form of technical solution of the present invention it should be understood that can enter without departing from the spirit and scope of the invention
Row modifications or substitutions, but these modifications and replacement are each fallen within protection scope of the present invention.
Embodiment 1
1st, stocked up according to following weight：
2nd, above-mentioned raw materials are added in stainless steel, stir 15-30min, made it well mixed, suspension is made.
3rd, brush contact susface is impregnated into above-mentioned suspension, impregnation is carried out to brush contact susface, makes connecing for brush
There is abrasive structure in contacting surface.
Alternatively, the grinding-material in the present embodiment can be the one or more in carborundum, quartz and aluminum oxide；
Conductive material can be one or more of in graphene, carbon fiber and conductive black.
Long duration test controller is loaded using FNC-5 types, on Positec WU715 angle grinders motors (230V/810W),
Carry out life-span, the test of spark situation respectively to the brush after dipping and untreated brush, result of the test is shown in Table 1.
Embodiment 2
For the present embodiment in addition to being stocked up according to following weight, remaining step is same as Example 1, wherein, each original
The weight of material is：
Alternatively, the grinding-material in the present embodiment can be the one or more in carborundum, quartz and aluminum oxide；
Conductive material can be one or more of in graphene, carbon fiber and conductive black.
Long duration test controller is loaded using FNC-5 types, on Positec WU715 angle grinders motors (230V/810W),
Carry out life-span, the test of spark situation respectively to the brush after dipping and untreated brush, result of the test is shown in Table 1.
Embodiment 3
For the present embodiment in addition to being stocked up according to following weight, remaining step is same as Example 1, wherein, each original
The weight of material is：
Alternatively, the grinding-material in the present embodiment can be the one or more in carborundum, quartz and aluminum oxide；
Conductive material can be one or more of in graphene, carbon fiber and conductive black.
Long duration test controller is loaded using FNC-5 types, on Positec WU715 angle grinders motors (230V/810W),
Carry out life-span, the test of spark situation respectively to the brush after dipping and untreated brush, result of the test is shown in Table 1.
Embodiment 4
For the present embodiment in addition to being stocked up according to following weight, remaining step is same as Example 1, wherein, each original
The weight of material is：
Alternatively, the grinding-material in the present embodiment can be the one or more in carborundum, quartz and aluminum oxide；
Conductive material can be one or more of in graphene, carbon fiber and conductive black.
Long duration test controller is loaded using FNC-5 types, on Positec WU715 angle grinders motors (230V/810W),
Carry out life-span, the test of spark situation respectively to the brush after dipping and untreated brush, result of the test is shown in Table 1.
Embodiment 5
For the present embodiment in addition to being stocked up according to following weight, remaining step is same as Example 1, wherein, each original
The weight of material is：
Alternatively, the grinding-material in the present embodiment can be the one or more in carborundum, quartz and aluminum oxide；
Conductive material can be one or more of in graphene, carbon fiber and conductive black.
Long duration test controller is loaded using FNC-5 types, on Positec WU715 angle grinders motors (230V/810W),
Carry out life-span, the test of spark situation respectively to the brush after dipping and untreated brush, result of the test is shown in Table 1.
1 wear rate of table/spark-testing result
Claims (7)
- A kind of 1. method by suspension impregnation to brush contact susface, it is characterised in that including：Fluent material comprising waterglass and resin and granular solid material are homogenously mixed together, suspension is made；Brush contact susface is placed in above-mentioned suspension, makes the suspension impregnation to the contact surface of brush.
- 2. according to the method for claim 1, it is characterised in that the percentage by weight that the waterglass accounts for the suspension is 25-30%.
- 3. according to the method for claim 1, it is characterised in that the fluent material comprising waterglass and the graininess The weight of solid material be：5-8：2-5.
- 4. according to the method for claim 1, it is characterised in that the solid material includes grinding-material and conductive material.
- 5. according to the method for claim 4, it is characterised in that the weight of the grinding-material and conductive material For：2-7：4-8.
- 6. according to the method for claim 5, it is characterised in that the grinding-material includes carborundum, quartz and aluminum oxide In one or more.
- 7. according to the method for claim 5, it is characterised in that the conductive material includes graphene, carbon fiber and conduction It is one or more of in carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566839.0A CN107634429A (en) | 2016-07-19 | 2016-07-19 | A kind of method by suspension impregnation to brush contact susface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566839.0A CN107634429A (en) | 2016-07-19 | 2016-07-19 | A kind of method by suspension impregnation to brush contact susface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107634429A true CN107634429A (en) | 2018-01-26 |
Family
ID=61112500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610566839.0A Pending CN107634429A (en) | 2016-07-19 | 2016-07-19 | A kind of method by suspension impregnation to brush contact susface |
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| CN (1) | CN107634429A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2734749A1 (en) * | 1976-08-05 | 1978-02-09 | Gen Electric | Brush to round off a commutator |
| CN1096313A (en) * | 1993-06-08 | 1994-12-14 | 庞敏慧 | Efficient polishing grinding stone and preparation technology thereof |
| CN1639925A (en) * | 2002-03-04 | 2005-07-13 | 申克碳化技术股份有限公司 | Method for production of a multi-layer carbon brush |
| CN1897418A (en) * | 2005-07-15 | 2007-01-17 | 爱信精机株式会社 | Metal-graphite brush |
| WO2008040684A1 (en) * | 2006-10-02 | 2008-04-10 | Robert Bosch Gmbh | Electric machine |
| CN101237108A (en) * | 2007-02-09 | 2008-08-06 | 黄继林 | Arc extinction brush and method for eliminating electric arc of power generator with this arc-extinction brush |
| CN101320876A (en) * | 2007-06-05 | 2008-12-10 | 格哈特精密压缩技术有限责任公司 | Electirc sliding contact and method for processing the same |
| CN101931157A (en) * | 2009-06-25 | 2010-12-29 | 申克碳化技术股份有限公司 | Carbon brush |
-
2016
- 2016-07-19 CN CN201610566839.0A patent/CN107634429A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2734749A1 (en) * | 1976-08-05 | 1978-02-09 | Gen Electric | Brush to round off a commutator |
| CN1096313A (en) * | 1993-06-08 | 1994-12-14 | 庞敏慧 | Efficient polishing grinding stone and preparation technology thereof |
| CN1639925A (en) * | 2002-03-04 | 2005-07-13 | 申克碳化技术股份有限公司 | Method for production of a multi-layer carbon brush |
| CN1897418A (en) * | 2005-07-15 | 2007-01-17 | 爱信精机株式会社 | Metal-graphite brush |
| WO2008040684A1 (en) * | 2006-10-02 | 2008-04-10 | Robert Bosch Gmbh | Electric machine |
| CN101237108A (en) * | 2007-02-09 | 2008-08-06 | 黄继林 | Arc extinction brush and method for eliminating electric arc of power generator with this arc-extinction brush |
| CN101320876A (en) * | 2007-06-05 | 2008-12-10 | 格哈特精密压缩技术有限责任公司 | Electirc sliding contact and method for processing the same |
| CN101931157A (en) * | 2009-06-25 | 2010-12-29 | 申克碳化技术股份有限公司 | Carbon brush |
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