CN107666104A - A kind of preparation method of running machine motor brush - Google Patents
A kind of preparation method of running machine motor brush Download PDFInfo
- Publication number
- CN107666104A CN107666104A CN201610599816.XA CN201610599816A CN107666104A CN 107666104 A CN107666104 A CN 107666104A CN 201610599816 A CN201610599816 A CN 201610599816A CN 107666104 A CN107666104 A CN 107666104A
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- brush
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- raw mixture
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/12—Manufacture of brushes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/20—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof
- H01R39/22—Contacts for co-operation with commutator or slip-ring, e.g. contact brush characterised by the material thereof incorporating lubricating or polishing ingredient
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention discloses a kind of preparation method of running machine motor brush, including：By the way that matrix powder is well mixed with binding agent, brush raw mixture is prepared；The brush raw mixture is dried, crushed, sieved, mixed processing, brush raw mixture powder is made；The brush raw mixture powder is added in compacting tool set, compression process is carried out to it, brush green billet is made；Heat cure processing is carried out to the brush blank, the ripe blank of brush is made；Finished product working process is carried out to the ripe blank of the brush, obtains brush finished product；Wherein, described matrix powder includes graphite, soft graphite powder, talcum powder, graphene, additive, curing agent.The inventive method prepare brush resistance rate it is moderate, anti-wear performance is good, commutation ability is good, grade of spark is low, it is often more important that have the characteristics that noise is low, product stability is good.
Description
Technical field
The present invention relates to a kind of preparation method of running machine motor brush, more particularly to a kind of low noise running machine motor
With the preparation method of brush, belong to machine field.
Background technology
Brush is to be used to commutator or slip ring contact a kind of conductive component in motor, be motor important composition part it
One.As the sliding contact body for importing and exporting electric current, its conductive, heat conduction and greasy property are good, and strong with certain machinery
Degree and the instinct for suppressing commutation property spark.Almost all of direct current generator and commutating machine all use brush.
With the development of science and technology, the species of motor and the working condition used are more and more diversified, thus need
Various types of brush meets the various requirement of motor, therefore the species of brush is more next also with the development of electric machine industry
It is more.
The classification method of brush has following four kinds at present：(1) it is divided into soft brush, middle hard by the soft or hard of material
Brush and hard brush；(2) steam turbine generator brush, steel mill electric machine brush, traction can be divided into using object by brush
Brush for electromachine, automobile and tractor brush, domestic electric appliance motor brush, electric brush for electric tool, electric motor of automobile brush,
Aircrafts electric machinery brush etc.；(3) it is divided into black electrical brush (being made of pure carbon graphite material) by the color of brush and color brush (is used
The metal materials such as copper and graphite are made)；(4) electrographite brush, electrographite brush, metal stone can be divided into by the material difference of brush
Black brush, simple metal brush.
Family expenses running machine motor is typically direct current generator, because of the needs of its application environment, it is desirable to which brush possesses suppression fire
The advantages such as flower ability is good, brush noise is low, specific following points requirement：(1) service life is long and does not wear commutator, no
Commutator is set phenomena such as cut, injustice, ablation, wire drawing occur；(2) there is good commutation ability, and energy loss is small；(3)
When brush is run, do not overheat, noise is small, not damaged, brush not ablation.
However, domestic brush operation electric noise general at present is big, stability is poor, domestic carbon brush factory can not meet electromechanics of running
The low and stable requirement of electromechanical brush long lifespan, noise.
The content of the invention
The invention aims to solve technical problem existing for above-mentioned running electromechanical brush, there is provided one kind is run electromechanical
The preparation method of machine brush, the inventive method prepare brush resistance rate it is moderate, anti-wear performance is good, commutation ability is good, spark
Grade is low, it is often more important that has the characteristics that noise is low, product stability is good.
The invention provides a kind of preparation method of running machine motor brush, comprise the following steps：
By the way that matrix powder is well mixed with binding agent, brush raw mixture is prepared；
The brush raw mixture is dried, crushed, sieved, mixed processing, brush raw mixture powder is made
End；
The brush raw mixture powder is added in compacting tool set, compression process is carried out to it, brush life is made
Blank；
Heat cure processing is carried out to the brush green billet, the ripe blank of brush is made；
Finished product working process is carried out to the ripe blank of the brush, obtains brush finished product；
Wherein, described matrix powder includes graphite, soft graphite powder, talcum powder and graphene.
Wherein, the weight of described matrix powder and binding agent is 5-7.5：1-2.
Particularly, the weight of described matrix powder and binding agent is preferably 5-7.5：1.2-1.7.
Especially, the weight of described matrix powder and binding agent is more preferably 5-7.5：1.5.
Wherein, the weight of the graphite, soft graphite powder, talcum powder and graphene is 70-95:1-3:2-4:
0.5-2。
Particularly, the graphite includes Delanium and native graphite.
Especially, the weight of the Delanium and native graphite is 65-85:5-10.
Particularly, the weight of the Delanium, native graphite, soft graphite powder, talcum powder and graphene is
65-85:5-10:1-3:2-4:0.5-2。
Wherein, described matrix powder also includes：Additive and curing agent.
Particularly, the Delanium, native graphite, soft graphite powder, talcum powder, graphene, additive and curing agent
Weight be 65-85:5-10:1-3:2-4:0.5-2:1-5:0.5-3.
Especially, the Delanium, native graphite, soft graphite powder, talcum powder, graphene, additive and curing agent
Weight be preferably 70-80:6-9:1.5-2.5:2.5-3.5:1-1.5:2-4:1-2.5.
Particularly, the Delanium, native graphite, soft graphite powder, talcum powder, graphene, additive and curing agent
Weight be more preferably 75:7.5:2:3:1.2:3:2.
Wherein, it is described to be well mixed matrix powder with binding agent, brush raw mixture is prepared, including：
Graphite, soft graphite powder, talcum powder, graphene, additive and curing agent are well mixed, matrix powder is made；
Binding agent is added in solvent acetone, mixed dissolution is uniform, and binder solution is made；
Described matrix powder is well mixed with the binder solution, uniformly spread out, thickness≤5cm, stands 2-4h, system
Obtain brush raw mixture.
Particularly, the granularity of the Delanium is 100-500 mesh, phosphorus content >=99.9%, fixes carbon content >=80%,
Moisture≤0.5%, ash≤0.5%.
Especially, the granularity of the native graphite is 100-300 mesh, phosphorus content >=99%, moisture≤0.5%, ash≤
1%, volatile matter≤1%.
Particularly, the granularity of the soft graphite (EG) is 100-200 mesh, carbon content >=99%, ash≤1%, moisture content
≤ 1%, soft graphite (EG) has extremely strong resistance to pressure, pliability, plasticity and self lubricity, has very high electrical conductivity and resists
Radiation characteristic, and it is nontoxic, environment is safe from harm.
Especially, the fineness of the talcum powder is 1200 mesh, and proportion is about 2.4 ± 0.2g/cm3, moisture≤0.5%.It is sliding
Stone flour is a kind of magnesium silicate minerals, and hardness is small and fusing point is high, and dispersiveness is strong, and satiny degree is big, coefficient of friction is small, chemical property is steady
It is fixed, belong to monoclinic system.
Particularly, the graphene has the characteristics of lamella is thin, easily scattered, and it has stable electric conductivity and excellent power
Learn performance.In running machine motor brush, improving the porosity of material has actively impact, but brush material simultaneously to brush noise reduction
Material must have certain intensity, the reasonable appropriate utilization of talcum powder, grapheme material, to of the invention significant again.
Wherein, the additive is aluminum phosphate.
Particularly, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination.
Especially, the granularity of the molybdenum disulfide is 3000-4000 mesh, purity 98%, has excellent greasy property,
Coefficient of friction is relatively low, and commutation ability is good.
Particularly, the granularity of the tungsten disulfide is 3000-4000 mesh, purity 99%, has excellent greasy property,
Coefficient of friction is relatively low, and commutation ability is good.
Especially, the crystal formation of the aluminum phosphate is α types, has excellent greasy property, coefficient of friction is relatively low, commutation ability
It is good.
Especially, the curing agent is epoxy curing agent.
Particularly, the curing agent is preferably epoxy resin latent curing agent T-31 curing agent.
Wherein, the binder solution is that the binding agent is dissolved in acetone to be made.
Particularly, the binding agent is the bisphenol A-type solid epoxy of intermediate molecular weight.
Especially, the weight of the binding agent and acetone is 1：(2~2.5).
Wherein, the brush raw mixture is dried, break process, brush raw mixture powder is made.
Particularly, the temperature of the drying and processing is 45-55 DEG C.
Especially, the time of the drying and processing is 10 ± 2h.
Particularly, the raw mixture after the drying crushed, sieved, mixed processing, it is 100- that granularity, which is made,
The raw mixture powder of 400 mesh.
Wherein, the brush raw mixture powder is added in compacting tool set using hydraulic press, it is suppressed
Processing, brush blank is made.
Particularly, during the compression process control brush blank bulk density.
Especially, the bulk density for controlling the brush blank is 1.70-1.75g/cm3
Wherein, heat cure processing is carried out to the brush blank, brush first product is made.
Particularly, the temperature of the heat cure processing is 120-220 DEG C.
Especially, the time of the heat cure processing is 13-17h.
Particularly, the process of the heat cure processing is：Brush blank is placed in baking oven, by the baking oven in 2h
Temperature be promoted to 120 DEG C, the temperature of the baking oven is then promoted to 180 DEG C in 6-8h；Again by the baking oven in 2h
Interior temperature is promoted to 200-220 DEG C, and 3-5h is then kept at a temperature of 200-220 DEG C.
Wherein, finished product working process is carried out to the brush first product, obtains brush finished product.
Particularly, the finished product working process includes cutting the brush first product, refining, revolving head, groove milling, brill
Hole, the mechanical processing steps such as line are filled out, produced.
Advantages of the present invention and advantageous effects are as follows：
1st, brush raw material composition of the present invention is reasonable, scientific formulation, and the brush for electromachine prepared using resin glue is wear-resisting
Performance is excellent, noise is low, service life is long, environmentally friendly, anti-wear performance improves more than 10%.
2nd, talcum powder is added in brush raw material of the present invention, manufactured treadmill Frictional Factor of Electric Brush is low, and electric noise is small；
3rd, graphene is added in brush raw material of the present invention, manufactured running electromechanical brush has the relatively large number of porosity, and
Intensity is preferable, and it is carried, and current capacity is good, and conductive capability is strong, improves the efficiency of motor operation course center brush, environmental protection and energy saving.
4th, molybdenum disulfide/tungsten disulfide is selected in brush raw material of the invention as additive so that the brush electricity of preparation
Machine commutation ability is good, and stability is high, anti-interference strong.
5th, soft graphite is added in brush raw material of the invention, it is suppressed that occur mechanical spark during brush use, electricity
Grade of spark is low in brush running, and no-spark when unloaded, spark reduces at least one grade, extends the use of brush
Life-span.
6th, the preparation method of running machine motor brush of the invention is simple, preparation technology science, and product quality is stable.
7th, running machine motor brush prepared by the present invention can be widely used in DC 90V/180V running machine motors, get rid of fat
On the body-building apparatus motor such as electromechanical machine.
Embodiment
Be expanded on further the present invention with reference to specific embodiment, 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, (part) is stocked up according to following weight：
Wherein, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination；Binding agent selects bisphenol A-type
Epoxy resin, its epoxide number are 0.25-0.45；The curing agent is (normal from epoxy resin latent curing agent T-31 curing agent
State mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
Native graphite, Delanium, soft graphite, talcum powder, graphene, additive, curing agent are placed in kneading pot,
The tumbler of kneading pot is opened, stops after mixing 1.5h under room temperature condition, matrix powder is made；By bisphenol A type epoxy resin
It is dissolved in acetone, is uniformly mixed, make its dissolving, binder solution is made；Binder solution is added to matrix powder
Middle stirring, it is well mixed, stirs 1.5h, take out material after well mixed, place, uniformly spread out at room temperature, thickness≤5cm,
2-4h is stood, brush raw mixture is made.
3rd, brush raw mixture is placed in baking oven the progress drying and processing 8-12h at 45-55 DEG C first, further gone
Except acetone, the raw mixture without acetone is made；Then break process is carried out to the material after drying, broken material crosses 120
Mesh sieve, is made brush raw mixture powder, the mesh of brush raw mixture powder size≤120.
4th, obtained brush raw mixture powder is placed in compacting tool set, compression process, system is carried out using hydraulic press
It is 1.70-1.75g/cm to obtain bulk density3Brush blank.
5th, brush blank is placed in baking oven, heat cure processing is carried out to brush blank, by the baking oven in 2h
Temperature is promoted to 120 DEG C, and the temperature of the baking oven then is promoted into 180 DEG C in 6-8h, then by the baking oven in 2h
Temperature be promoted to 200-220 DEG C, 3-5h is then kept at a temperature of 200-220 DEG C, be made heat cure processing after brush
First product；
6th, to the brush first product after curing process is cut, grinding machine, drill, fill out the mechanical processing steps such as line, spot welding
After produce running machine motor brush.
7th, determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physical and chemical performance test method electricity
Resistance rate) method measure running machine motor brush resistivity；Using the Shore hardness of HS-19CTV type hardness tester machine private wipers；
Used using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength) method measure running machine motor
The rupture strength of brush；Test result is shown in Table 1；
Using the wear rate of running machine motor brush made from the load long duration test controller test of FNC-5 types, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Running machine motor made from test is used
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/T of loss and efficiency
755.2-2003)》The efficiency of running machine motor brush, test result are shown in Table 4 made from test.
Embodiment 2
1st, (part) is stocked up according to following weight：
Wherein, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination；Binding agent selects bisphenol A-type
Epoxy resin, its epoxide number are 0.25-0.45；The curing agent is (normal from epoxy resin latent curing agent T-31 curing agent
State mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
Native graphite, Delanium, soft graphite, talcum powder, graphene, additive, curing agent are placed in kneading pot,
The tumbler of kneading pot is opened, stops after mixing 1.5h under room temperature condition, matrix powder is made；By bisphenol A type epoxy resin
It is dissolved in acetone, is uniformly mixed, make its dissolving, binder solution is made；Binder solution is added to matrix powder
Middle stirring, it is well mixed, stirs 1.5h, take out material after well mixed, place, uniformly spread out at room temperature, thickness≤5cm,
2-4h is stood, brush raw mixture is made.
3rd, brush raw mixture is placed in baking oven the progress drying and processing 8-12h at 45-55 DEG C first, further gone
Except acetone, the raw mixture without acetone is made；Then break process is carried out to the material after drying, broken material crosses 120
Mesh sieve, is made brush raw mixture powder, the mesh of brush raw mixture powder size≤120.
4th, obtained brush raw mixture powder is placed in compacting tool set, compression process, system is carried out using hydraulic press
It is 1.70-1.75g/cm to obtain bulk density3Brush blank.
5th, brush blank is placed in baking oven, heat cure processing is carried out to brush blank, by the baking oven in 2h
Temperature is promoted to 120 DEG C, and the temperature of the baking oven then is promoted into 180 DEG C in 6-8h, then by the baking oven in 2h
Temperature be promoted to 200-220 DEG C, 3-5h is then kept at a temperature of 200-220 DEG C, be made heat cure processing after brush
First product；
6th, to the brush first product after curing process is cut, grinding machine, drill, fill out the mechanical processing steps such as line, spot welding
After produce running machine motor brush.
7th, determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physical and chemical performance test method electricity
Resistance rate) method measure running machine motor brush resistivity；Using the Shore hardness of HS-19CTV type hardness tester machine private wipers；
Used using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength) method measure running machine motor
The rupture strength of brush；Test result is shown in Table 1；
Using the wear rate of running machine motor brush made from the load long duration test controller test of FNC-5 types, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Running machine motor made from test is used
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/ of loss and efficiency
T755.2-2003)》The efficiency of running machine motor brush, test result are shown in Table 4 made from test.
Embodiment 3
1st, (part) is stocked up according to following weight：
Wherein, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination；Binding agent selects bisphenol A-type
Epoxy resin, its epoxide number are 0.25-0.45；The curing agent is (normal from epoxy resin latent curing agent T-31 curing agent
State mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
Native graphite, Delanium, soft graphite, talcum powder, graphene, additive, curing agent are placed in kneading pot,
The tumbler of kneading pot is opened, stops after mixing 1.5h under room temperature condition, matrix powder is made；By bisphenol A type epoxy resin
It is dissolved in acetone, is uniformly mixed, make its dissolving, binder solution is made；Binder solution is added to matrix powder
Middle stirring, it is well mixed, stirs 1.5h, take out material after well mixed, place, uniformly spread out at room temperature, thickness≤5cm,
2-4h is stood, brush raw mixture is made.
3rd, brush raw mixture is placed in baking oven the progress drying and processing 8-12h at 45-55 DEG C first, further gone
Except acetone, the raw mixture without acetone is made；Then break process is carried out to the material after drying, broken material crosses 120
Mesh sieve, is made brush raw mixture powder, the mesh of brush raw mixture powder size≤120.
4th, obtained brush raw mixture powder is placed in compacting tool set, compression process, system is carried out using hydraulic press
It is 1.70-1.75g/cm to obtain bulk density3Brush blank.
5th, brush blank is placed in baking oven, heat cure processing is carried out to brush blank, by the baking oven in 2h
Temperature is promoted to 120 DEG C, and the temperature of the baking oven then is promoted into 180 DEG C in 6-8h, then by the baking oven in 2h
Temperature be promoted to 200-220 DEG C, 3-5h is then kept at a temperature of 200-220 DEG C, be made heat cure processing after brush
First product；
6th, to the brush first product after curing process is cut, grinding machine, drill, fill out the mechanical processing steps such as line, spot welding
After produce running machine motor brush.
7th, determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physical and chemical performance test method electricity
Resistance rate) method measure running machine motor brush resistivity；Using the Shore hardness of HS-19CTV type hardness tester machine private wipers；
Used using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength) method measure running machine motor
The rupture strength of brush；Test result is shown in Table 1；
Using the wear rate of running machine motor brush made from the load long duration test controller test of FNC-5 types, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Running machine motor made from test is used
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/ of loss and efficiency
T755.2-2003)》The efficiency of running machine motor brush, test result are shown in Table 4 made from test.
Embodiment 4
1st, (part) is stocked up according to following weight：
Wherein, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination, and its epoxide number is 0.25-
0.45；The curing agent selects epoxy resin latent curing agent T-31 curing agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
Native graphite, Delanium, soft graphite, talcum powder, graphene, additive, curing agent are placed in kneading pot,
The tumbler of kneading pot is opened, stops after mixing 1.5h under room temperature condition, matrix powder is made；By bisphenol A type epoxy resin
It is dissolved in acetone, is uniformly mixed, make its dissolving, binder solution is made；Binder solution is added to matrix powder
Middle stirring, it is well mixed, stirs 1.5h, take out material after well mixed, place, uniformly spread out at room temperature, thickness≤5cm,
2-4h is stood, brush raw mixture is made.
3rd, brush raw mixture is placed in baking oven the progress drying and processing 8-12h at 45-55 DEG C first, further gone
Except acetone, the raw mixture without acetone is made；Then break process is carried out to the material after drying, broken material crosses 120
Mesh sieve, is made brush raw mixture powder, the mesh of brush raw mixture powder size≤120.
4th, obtained brush raw mixture powder is placed in compacting tool set, compression process, system is carried out using hydraulic press
It is 1.70-1.75g/cm to obtain bulk density3Brush blank.
5th, brush blank is placed in baking oven, heat cure processing is carried out to brush blank, by the baking oven in 2h
Temperature is promoted to 120 DEG C, and the temperature of the baking oven then is promoted into 180 DEG C in 6-8h, then by the baking oven in 2h
Temperature be promoted to 200-220 DEG C, 3-5h is then kept at a temperature of 200-220 DEG C, be made heat cure processing after brush
First product；
6th, to the brush first product after curing process is cut, grinding machine, drill, fill out the mechanical processing steps such as line, spot welding
After produce running machine motor brush.
7th, determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physical and chemical performance test method electricity
Resistance rate) method measure running machine motor brush resistivity；Using the Shore hardness of HS-19CTV type hardness tester machine private wipers；
Used using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength) method measure running machine motor
The rupture strength of brush；Test result is shown in Table 1；
Using the wear rate of running machine motor brush made from the load long duration test controller test of FNC-5 types, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Running machine motor made from test is used
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/ of loss and efficiency
T755.2-2003)》The efficiency of running machine motor brush, test result are shown in Table 4 made from test.
Embodiment 5
1st, (part) is stocked up according to following weight：
Wherein, the additive is one of molybdenum disulfide, tungsten disulfide, aluminum phosphate or combination；Binding agent selects bisphenol A-type
Epoxy resin, its epoxide number are 0.25-0.45；The curing agent is (normal from epoxy resin latent curing agent T-31 curing agent
State mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
Native graphite, Delanium, soft graphite, talcum powder, graphene, additive, curing agent are placed in kneading pot,
The tumbler of kneading pot is opened, stops after mixing 1.5h under room temperature condition, matrix powder is made；By bisphenol A type epoxy resin
It is dissolved in acetone, is uniformly mixed, make its dissolving, binder solution is made；Binder solution is added to matrix powder
Middle stirring, it is well mixed, stirs 1.5h, take out material after well mixed, place, uniformly spread out at room temperature, thickness≤5cm,
2-4h is stood, brush raw mixture is made.
3rd, brush raw mixture is placed in baking oven the progress drying and processing 8-12h at 45-55 DEG C first, further gone
Except acetone, the raw mixture without acetone is made；Then break process is carried out to the material after drying, broken material crosses 120
Mesh sieve, is made brush raw mixture powder, the mesh of brush raw mixture powder size≤120.
4th, obtained brush raw mixture powder is placed in compacting tool set, compression process, system is carried out using hydraulic press
It is 1.70-1.75g/cm to obtain bulk density3Brush blank.
5th, brush blank is placed in baking oven, heat cure processing is carried out to brush blank, by the baking oven in 2h
Temperature is promoted to 120 DEG C, and the temperature of the baking oven then is promoted into 180 DEG C in 6-8h, then by the baking oven in 2h
Temperature be promoted to 200-220 DEG C, 3-5h is then kept at a temperature of 200-220 DEG C, be made heat cure processing after brush
First product；
6th, to the brush first product after curing process is cut, grinding machine, drill, fill out the mechanical processing steps such as line, spot welding
After produce running machine motor brush.
7th, determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physical and chemical performance test method electricity
Resistance rate) method measure running machine motor brush resistivity；Using the Shore hardness of HS-19CTV type hardness tester machine private wipers；
Used using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength) method measure running machine motor
The rupture strength of brush；Test result is shown in Table 1；
Using the wear rate of running machine motor brush made from the load long duration test controller test of FNC-5 types, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Running machine motor made from test is used
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/ of loss and efficiency
T755.2-2003)》The efficiency of running machine motor brush, test result are shown in Table 4 made from test.
Reference examples
Reference examples are used as by the use of brush with commercially available running machine motor (HX-852B, DC180V/1.5HP).
Determined according to JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density) method
The bulk density of reference examples running machine motor brush；According to JB/T8133.2-1999, (electric carbon product physical and chemical performance is tested
Method resistivity) method measure reference examples running machine motor brush resistivity；Using the test pair of HS-19CTV type hardness testers machine
The Shore hardness of brush as usual；Using JB/T8133.7-1999 (electric carbon product physical and chemical performance test method rupture strength)
Method determines the rupture strength of running machine motor brush, the results are shown in Table 1；
Using the wear rate of FNC-5 types load long duration test controller test reference examples running machine motor brush, experiment
It the results are shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Reference examples running machine motor is tested to use
The grade of spark of brush, 3 are shown in Table using decibel instrument private wiper no-load running electric noise and ear sense noise situation, test result；
With reference to national standard《Electric rotating machine (except traction electric machine) determines the test method (GB/T of loss and efficiency
755.2-2003)》The efficiency of reference examples running machine motor brush is tested, test result is shown in Table 4.
The physical and mechanical properties test result of the brush of table 1
| Performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples |
| Bulk density (g/cm3) | 1.45 | 1.47 | 1.47 | 1.48 | 1.46 | 1.38 |
| Shore hardness (HSD) | 24 | 25 | 25 | 24 | 25 | 22 |
| Resistivity (μ Ω m) | 1100 | 1500 | 1300 | 1500 | 1650 | 2200 |
| Rupture strength (MPa) | 15 | 16 | 15 | 14 | 16 | 16 |
The test result of table 1 shows：Running machine motor prepared by the present invention is 1.45-1.48g/ with the bulk density of brush
cm3；The resistivity 1100-1650 μ Ω m of running machine motor brush, resistance is moderate, suitable for high low pressure (DC 180V/
90V) running machine motor uses.And the resistivity of existing running machine motor brush is high, brush efficiency is low, spark stability
Difference.
The wear rate result of the test of the brush of table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples | |
| Wear rate (mm/100H) | 0.91 | 0.97 | 1.03 | 1.10 | 1.05 | 1.29 |
As seen from the results in Table 2：The wear rate of the brush for electromachine of the present invention is low, and wear rate is less than 1.2mm/100H, wear-resisting
Excellent performance, hence it is evident that better than the anti-wear performance of Imported Electrical Brush in comparative example.
The grade of spark and noise test result of the brush of table 3
From the test result of table 3：The grade of spark of the running machine motor brush of the present invention is low, is 11/4, and general
The running machine motor for leading to commercially available import is compared with brush, and grade of spark reduces 1 grade, and suppression spark ability is good, improves
Safety in utilization.
The running machine motor of the present invention is small with brush electric noise, occurs without high frequency electric noise abnormal sound during load.Its noise presses down
Ability performance processed is outstanding.
The efficiency test result of the brush of table 4
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples | |
| Efficiency | 37.6% | 37.3% | 38.2% | 36.5% | 36.9% | 36.1% |
From the test result of table 4：The efficiency of the running machine motor brush of the present invention is compared with the reference examples import carbon brush
Height, it is a kind of energy-saving running machine motor brush.
Claims (10)
1. a kind of preparation method of running machine motor brush, it is characterised in that comprise the following steps：
By the way that matrix powder is well mixed with binding agent, brush raw mixture is prepared；
The brush raw mixture is dried, crushed, sieved, mixed processing, brush raw mixture powder is made；
The brush raw mixture powder is added in compacting tool set, compression process is carried out to it, brush green billet is made；
Heat cure processing is carried out to the brush blank, the ripe blank of brush is made；
Finished product working process is carried out to the ripe blank of the brush, obtains brush finished product；
Wherein, described matrix powder includes graphite, soft graphite powder, talcum powder and graphene.
2. preparation method according to claim 1, it is characterised in that the weight of described matrix powder and binding agent
For 5-7.5:1-2.
3. preparation method according to claim 1, it is characterised in that the graphite, soft graphite powder, talcum powder and graphite
The weight of alkene is 70-95:1-3:2-4:0.5-2.
4. preparation method according to claim 3, it is characterised in that the graphite includes Delanium and native graphite,
The weight of the Delanium and the native graphite is 65-85:5-10.
5. preparation method according to claim 4, it is characterised in that the Delanium, native graphite, soft graphite
The weight of powder, talcum powder and graphene is 65-85:5-10:1-3:2-4:0.5-2.
6. preparation method according to claim 2, it is characterised in that described matrix powder also includes additive and solidification
Agent.
7. preparation method according to claim 6, it is characterised in that the Delanium, native graphite, soft graphite
Powder, talcum powder, graphene, the weight of additive and curing agent are 65-85:5-10:1-3:2-4:0.5-2:1-5:
0.5-3。
8. preparation method according to claim 7, it is characterised in that the additive is aluminum phosphate.
9. preparation method according to claim 1, it is characterised in that the temperature of the drying and processing is 50 ± 5 DEG C.
10. preparation method according to claim 1, it is characterised in that the temperature of the heat cure processing is 200-220
℃。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610599816.XA CN107666104A (en) | 2016-07-27 | 2016-07-27 | A kind of preparation method of running machine motor brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599816.XA CN107666104A (en) | 2016-07-27 | 2016-07-27 | A kind of preparation method of running machine motor brush |
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| CN107666104A true CN107666104A (en) | 2018-02-06 |
Family
ID=61114816
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| CN201610599816.XA Pending CN107666104A (en) | 2016-07-27 | 2016-07-27 | A kind of preparation method of running machine motor brush |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524866A (en) * | 2018-11-30 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of graphene-carbon nano-fiber enhancing copper-base graphite carbon brush for electric machine and preparation method thereof |
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| CN1439187A (en) * | 2000-06-28 | 2003-08-27 | 东炭化工株式会社 | Carbon brush for electric machine |
| CN101002373A (en) * | 2004-07-26 | 2007-07-18 | 东炭化工株式会社 | Carbon brush |
| CN103140441A (en) * | 2010-08-11 | 2013-06-05 | 特密高股份有限公司 | Ground expanded graphite agglomerates, methods of making, and applications of the same |
| CN104779503A (en) * | 2014-01-15 | 2015-07-15 | 苏州东南碳制品有限公司 | Electric brush for treadmill motor and manufacturing method of same |
| CN104779511A (en) * | 2014-01-15 | 2015-07-15 | 苏州东南碳制品有限公司 | Manufacturing method of electric brush for treadmill motor and electronic brush manufactured using same |
| CN105684240A (en) * | 2013-08-16 | 2016-06-15 | 滑动环及设备制造有限公司 | Slip ring assembly and components thereof |
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|---|---|---|---|---|
| CN1439187A (en) * | 2000-06-28 | 2003-08-27 | 东炭化工株式会社 | Carbon brush for electric machine |
| CN101002373A (en) * | 2004-07-26 | 2007-07-18 | 东炭化工株式会社 | Carbon brush |
| CN103140441A (en) * | 2010-08-11 | 2013-06-05 | 特密高股份有限公司 | Ground expanded graphite agglomerates, methods of making, and applications of the same |
| CN105684240A (en) * | 2013-08-16 | 2016-06-15 | 滑动环及设备制造有限公司 | Slip ring assembly and components thereof |
| CN104779503A (en) * | 2014-01-15 | 2015-07-15 | 苏州东南碳制品有限公司 | Electric brush for treadmill motor and manufacturing method of same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109524866A (en) * | 2018-11-30 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of graphene-carbon nano-fiber enhancing copper-base graphite carbon brush for electric machine and preparation method thereof |
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