CN106654782A - Electric brush for treadmill motor - Google Patents
Electric brush for treadmill motor Download PDFInfo
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- CN106654782A CN106654782A CN201510741575.3A CN201510741575A CN106654782A CN 106654782 A CN106654782 A CN 106654782A CN 201510741575 A CN201510741575 A CN 201510741575A CN 106654782 A CN106654782 A CN 106654782A
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- brush
- electric brush
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- 239000000203 mixture Substances 0.000 claims abstract description 71
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000843 powder Substances 0.000 claims abstract description 52
- 239000010439 graphite Substances 0.000 claims abstract description 45
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 45
- 239000011230 binding agent Substances 0.000 claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 18
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 44
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 239000000654 additive Substances 0.000 claims description 20
- 230000000996 additive effect Effects 0.000 claims description 20
- 239000000428 dust Substances 0.000 claims description 20
- 238000013007 heat curing Methods 0.000 claims description 16
- 229950000845 politef Drugs 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims 1
- 239000004332 silver Substances 0.000 claims 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 24
- 239000002994 raw material Substances 0.000 abstract description 18
- 238000002360 preparation method Methods 0.000 abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 2
- 150000002148 esters Chemical class 0.000 abstract 1
- 229920006389 polyphenyl polymer Polymers 0.000 abstract 1
- 238000001029 thermal curing Methods 0.000 abstract 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 56
- 238000012360 testing method Methods 0.000 description 49
- 239000000047 product Substances 0.000 description 34
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 21
- 229910052799 carbon Inorganic materials 0.000 description 17
- 239000003822 epoxy resin Substances 0.000 description 16
- 229920000647 polyepoxide Polymers 0.000 description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 15
- 229910052750 molybdenum Inorganic materials 0.000 description 15
- 239000011733 molybdenum Substances 0.000 description 15
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 14
- 239000000126 substance Substances 0.000 description 12
- 238000010998 test method Methods 0.000 description 11
- 238000004898 kneading Methods 0.000 description 10
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 7
- 238000001723 curing Methods 0.000 description 7
- 238000011056 performance test Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 239000012467 final product Substances 0.000 description 6
- 239000010426 asphalt Substances 0.000 description 5
- 150000002118 epoxides Chemical class 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000004223 radioprotective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- H01R39/24—Laminated contacts; Wire contacts, e.g. metallic brush, carbon fibres
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention provides an electric brush for a treadmill motor. An electric brush preparation method comprises steps that matrix powder materials and a binder solution are mixed uniformly to prepare an electric brush raw material mixture; the electric brush raw material mixture is dried and crushed to acquire electric brush raw material powder; the electric brush raw material powder is added to a pressing die to carry out pressing processing to acquire an electric brush blank; thermal curing processing on the electric brush blank is carried out to acquire a half-finished electric brush product; finished product processing on the half-finished electric brush product is carried out to acquire a finished electric brush; the matrix powder materials comprise graphite, polyphenyl ester resin, polytetrafluoroethylene and metal powder. The electric brush has advantages of proper electrical resistivity, good wear-resisting performance, good commutation performance and low spark grade and further has more important advantages of high efficiency, low noise and good product stability.
Description
Technical field
The present invention relates to a kind of running machine motor brush, more particularly to a kind of energy-saving running machine motor electricity consumption
Brush, belongs to machine field.
Background technology
Brush is a kind of conductive component that electrical connection is formed for contacting with diverter or slip ring in motor, is electricity
The important composition part of machine.As the sliding contact body for importing and exporting electric current, its conduction, heat conduction and greasy property
Well, and with certain mechanical strength and the instinct for suppressing commutation property spark.It is widely used in various friendships
DC generator, synchronous motor, storage battery dc motor, crane motor collecting ring, various electric welding machine etc.,
Almost all of direct current generator and commutating machine all use brush.
With science and technology development, the species of motor and the working condition for using it is more and more diversified, thus need
There is various types of brush to meet the various requirement of motor, therefore the species of brush is also with electric machine industry
Development and it is more and more.
At present the classification method of brush has following four kinds：(1) by the soft or hard of material can be divided into soft brush,
Middle hard brush and hard brush；(2) steam turbine generator brush, steel rolling can be divided into by the use object of brush
It is brush for electromachine, traction electric machine brush, automobile and tractor brush, domestic electric appliance motor brush, electronic
Instrument brush, electric motor of automobile brush, aircrafts electric machinery brush etc.；(3) it is divided into black by the color of brush
Brush (being made with pure carbon graphite material) and color brush (being made with the metal materials such as copper and graphite)；(4)
Can be divided into electrographite brush, electrographite brush, metal-graphite brush, simple metal brush by the material difference of brush.
Domestic running machine motor is typically direct current generator, and direct current generator is safer, often safeguards without Jing, makes an uproar
Signal to noise ratio alternating current generator is little, and output is stable.Running machine motor is because of the needs of its applied environment, it is desirable to which brush possesses suppression
Spark ability processed is good, low brush noise, high working efficiency the advantages of, concrete following points are required：(1) make
With life-span length and do not wear and tear diverter, does not make diverter the phenomenons such as cut, injustice, ablation, wire drawing occur；
(2) with good commutation ability, and energy loss is little；(3) when brush runs, not overheated, noise is little,
It is not damaged, shunt welding invariant color, not ablation；(4) in running, can quickly be formed in commutator face
One layer of uniform light coppery oxide-film.
However, at present general domestic brush operational efficiency is relatively low, stability is poor, domestic carbon brush factory cannot meet race
The energy-efficient requirement of Step motor.
The content of the invention
The invention aims to solve a kind of treadmill of technical problem offer that above-mentioned running electromechanical brush is present
Brush for electromachine, brush resistance rate of the present invention is moderate, anti-wear performance is good, commutation ability is good, grade of spark is low,
More importantly there is efficiency high, the features such as noise is low, product stability is good.
The invention provides a kind of running machine motor brush, is prepared by the following method and forms：
By the way that matrix powder is mixed homogeneously with binder solution, brush raw mixture is prepared；
The brush raw mixture is dried, break process, brush raw mixture powder is obtained；
The brush raw mixture powder is added in compacting tool set, compression process is carried out to it, electricity is obtained
Brush blank；
Heat cure process is carried out to the brush blank, brush first product is obtained；
Finished product processed is carried out to the brush first product, brush finished product is obtained；
Wherein, described matrix powder includes graphite, polybenzoate resin, politef and metal dust.
Wherein, in described matrix powder graphite, polybenzoate resin, politef and metal dust weight portion
Proportioning is 70-95:1-3:2-4:5-15.
Particularly, the graphite includes native graphite and soft graphite, the native graphite and the soft graphite
Weight be 65-85:5-10.
Especially, the native graphite, soft graphite, polybenzoate resin, politef and metal dust
Weight is 65-85:5-10:1-3:2-4:5-15.
Particularly, the granularity of the native graphite is 100-300 mesh, and phosphorus content >=99% fixes carbon content >=60%,
Moisture≤1%, ash≤1%, volatile matters≤10%.
Especially, the granularity of the soft graphite (EG) be 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,
There is very high electrical conductivity and radioprotective characteristic, and it is nontoxic, any carcinogen is not contained, environment is safe from harm.
Particularly, polybenzoate (PHB) resin is aromatic polyester liquid crystal polymer, by P-hydroxybenzoic acid benzene
Ester polycondensation is formed, and its molecular backbone contains to oxygen benzoyl constitutional repeating unit, and degree of crystallinity is very high, self lubricity
Good, heat stability is high, with preferable mechanical strength and processing characteristics.
Especially, the coefficient of friction of politef (PTFE) is minimum, and arc resistance is higher, with excellent
Greasy property.
Wherein, the metal dust includes one or more in copper powder, argentum powder, tungsten powder and glass putty.
Particularly, the granularity of the metal dust is 200-400 mesh.
Especially, the loose specific weight of the copper powder is 0.8-1.0g/cm3, purity >=99.9%.
Particularly, the loose specific weight of the argentum powder is 0.8-1.2g/cm3, purity >=99.9%.
Especially, the loose specific weight of the tungsten powder is 4.5-5.5g/cm3, purity >=99.9%.
Particularly, the loose specific weight of the glass putty is 4.5-5.5g/cm3, purity >=99.9%.
Wherein, described matrix powder is also comprising additive and firming agent.
Particularly, the native graphite, soft graphite, polybenzoate resin, politef, metal dust,
The weight of additive and firming agent is 65-85:5-10:1-3:2-4:5-15:1-5:0.5-3.
Especially, the native graphite, soft graphite, polybenzoate resin, politef, metal dust,
Additive, the weight of firming agent are preferably 65-75:6-8:1-3:2-4:8-12:1.5-5:1-3.
Wherein, the additive selects molybdenum bisuphide and aluminum phosphate.
Particularly, the granularity of the molybdenum bisuphide is 3000-4000 mesh, and purity is 98%.
Especially, the crystal formation of the aluminum phosphate is α types.
Particularly, the weight of the molybdenum bisuphide and aluminum phosphate is 2:1.
Additive molybdenum bisuphide and aluminum phosphate have excellent greasy property, and coefficient of friction is relatively low, and commutation ability is good.
Especially, the firming agent is epoxy curing agent.
Particularly, the firming agent is preferably epoxy resin latent curing agent T-31 firming agent.
Wherein, the binder solution is that the binding agent is dissolved in acetone to be obtained.
Particularly, the binding agent is the bisphenol A-type solid epoxy of intermediate molecular weight.
Especially, the binding agent and the weight of acetone are 1：2-2.5.
Wherein, described that matrix powder is mixed homogeneously with binder solution, preparing brush raw mixture includes：
By native graphite, soft graphite, polybenzoate resin, politef, metal dust, additive and solid
Agent mix homogeneously, is obtained matrix powder；
Binding agent is added in solvent acetone, mixed dissolution is uniform, binder solution is obtained；
Described matrix powder is mixed homogeneously with the binder solution, is uniformly spread out, thickness≤5cm stands
2-4h, is obtained brush raw mixture.
Wherein, the brush raw mixture is dried, break process, brush raw mixture powder is obtained
End.
Particularly, the temperature of the drying and processing is 45-55 DEG C.
Especially, the time of the drying and processing is 10-14h.
Particularly, break process is carried out to the raw mixture after the drying, raw mixture powder is obtained.
Wherein, the brush raw mixture powder is added in compacting tool set using hydraulic press, it is carried out
Compression process, is obtained brush blank.
Particularly, during the compression process control brush blank bulk density.
Especially, the bulk density of the brush blank is 1.85-1.95g/cm3
Wherein, heat cure process is carried out to the brush blank, brush first product is obtained.
Particularly, the temperature that the heat cure is processed is 220-240 DEG C.
Especially, the time that the heat cure is processed is 7-11h.
Particularly, brush blank is placed in baking oven, in 4-6h, the temperature in the baking oven is promoted to
220-240℃；Then 3-5h is kept at a temperature of 220-240 DEG C.
Wherein, finished product processed is carried out to the brush first product, obtains brush finished product.
Particularly, the finished product processed includes the brush first product is cut, refined, revolves head, milling
Groove, drill, fill out the mechanical processing steps such as line, obtaining final product.
Advantages of the present invention and Advantageous Effects are as follows：
1st, brush raw material composition of the present invention is reasonable, scientific formulation, the motor prepared using resin glue
Brush anti-wear performance is excellent, noise is low, long service life, environmental protection, anti-wear performance improve more than 10%.
2nd, add metal dust in brush raw material of the present invention, made by running electromechanical brush carry current capacity it is good,
Practical efficiency high, improves the efficiency of motor operation course center brush, environmental protection and energy saving.
3rd, molybdenum bisuphide is selected in brush raw material of the invention as additive so that the brushless motor of preparation is changed
Good to performance, stability is high, anti-interference strong.
4th, soft graphite is added in brush raw material of the invention, it is suppressed that occur machinery fire during brush use
Flower, grade of spark is low in brush running, and no-spark when unloaded, spark reduces at least one grade,
Extend the service life of brush.
5th, the preparation method of running machine motor brush of the invention is simple, preparation technology science, product matter
Amount is stable.
6th, running machine motor brush prepared by the present invention is used suitable for high pressure (DC180V) treadmill,
And can be widely used on the body-building apparatus motors such as DC 90V/180V running machine motors, fitness massager motor.
Specific embodiment
The present invention is expanded on further with reference to specific embodiment, advantages of the present invention and feature will be with retouching
State and apparent.But these embodiments are only exemplary, do not constitute any restriction to the scope of the present invention.
It will be understood by those skilled in the art that without departing from the spirit and scope of the invention can be to skill of the present invention
The details and form of art scheme is modified or is replaced, but these modifications and replacement each fall within the protection model of the present invention
In enclosing.
Embodiment 1
1st, get the raw materials ready (part) according to following weight：
Wherein, the metal dust is the mixture of copper powder and argentum powder, and its weight ratio is 3：1, granularity is 200-400
Mesh；Additive includes molybdenum bisuphide and aluminum phosphate, and the wherein weight ratio of molybdenum bisuphide and aluminum phosphate is 2:1；
Binding agent selects bisphenol A type epoxy resin, and its epoxide number is 0.25-0.45；The firming agent selects asphalt mixtures modified by epoxy resin
Fat latent curing agent T-31 firming agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
By native graphite, soft graphite, polybenzoate resin (PHB), politef, additive, solidification
Agent is placed in kneading pot, opens the tumbler of kneading pot, is mixed under room temperature condition and stop after 1.5h, is obtained
Matrix powder；Bisphenol A type epoxy resin is dissolved in acetone, is uniformly mixed so as to dissolved, made
Obtain binder solution；Binder solution is added to into stirring, mix homogeneously in matrix powder, 1.5h is stirred, is mixed
Uniform rear taking-up material is closed, is placed at room temperature, placed 3h and treat that acetone volatilizees so that be residual without acetone in material
Stay, brush raw mixture is obtained.
3rd, brush raw mixture is placed in baking oven first carries out drying and processing 12h at 50 DEG C, further
Acetone is removed, the raw mixture without acetone is obtained；Then break process is carried out to the material after drying, is broken
Broken material crosses 60 mesh sieves, and brush raw mixture powder, brush raw mixture powder size≤60 mesh is obtained.
4th, obtained brush raw mixture powder is placed in compacting tool set, is carried out at compacting using hydraulic press
Reason, it is 1.88-1.92g/cm that bulk density is obtained3Brush blank.
5th, brush blank is placed in baking oven, heat cure process is carried out to brush blank, will be dried first in 5h
Case temperature is increased to 230 DEG C from room temperature, and wherein heating rate is 46 DEG C/h；Then protect at a temperature of 230 DEG C
4h is held, the brush first product after heat cure is processed is obtained；
6th, to the brush first product after cured is cut, grinding machine, drill, fill out the machineries such as line, spot welding
Running machine motor brush is obtained final product after procedure of processing.
7th, according to JB/T8133.14-1999's (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physics
Chemical property test method resistivity) method determine running machine motor brush resistivity；Using
The Shore hardness of HS-19CTV type hardness tester machine private wipers, the results are shown in Table 1；
The wear rate of the obtained running machine motor brush of long duration test controller test is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》The obtained treadmill of test
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 the obtained running machine motor brush of test, test result is shown in Table 4.
Embodiment 2
1st, get the raw materials ready (part) according to following weight：
Wherein, the metal dust is the mixture of copper powder and tungsten powder, and its weight ratio is 3：1, granularity is 200-400
Mesh；Additive includes molybdenum bisuphide and aluminum phosphate, and the wherein weight ratio of molybdenum bisuphide and aluminum phosphate is 2:1；
Binding agent selects bisphenol A type epoxy resin, and its epoxide number is 0.25-0.45；The firming agent selects asphalt mixtures modified by epoxy resin
Fat latent curing agent T-31 firming agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
By native graphite, soft graphite, polybenzoate resin (PHB), politef, additive, solidification
Agent is placed in kneading pot, opens the tumbler of kneading pot, is mixed under room temperature condition and stop after 1.5h, is obtained
Matrix powder；Bisphenol A type epoxy resin is dissolved in acetone, is uniformly mixed so as to dissolved, made
Obtain binder solution；Binder solution is added to into stirring, mix homogeneously in matrix powder, 1.5h is stirred, is mixed
Uniform rear taking-up material is closed, is placed at room temperature, placed 2-4h and treat that acetone volatilizees so that without acetone in material
Residual, is obtained brush raw mixture.
3rd, brush raw mixture is placed in baking oven first carries out drying and processing 11h at 52 DEG C, further
Acetone is removed, the raw mixture without acetone is obtained；Then break process is carried out to the material after drying, is broken
Broken material crosses 60 mesh sieves, and brush raw mixture powder, brush raw mixture powder size≤60 mesh is obtained.
4th, obtained brush raw mixture powder is placed in compacting tool set, is carried out at compacting using hydraulic press
Reason, it is 1.85-1.88g/cm that bulk density is obtained3Brush blank.
5th, brush blank is placed in baking oven, heat cure process is carried out to brush blank, will first in 5.5h
Oven temperature is increased to 235 DEG C from room temperature, and wherein heating rate is 42.8 DEG C/h；Then in 235 DEG C of temperature
Lower holding 4.5h, is obtained the brush first product after heat cure is processed；
6th, to the brush first product after cured is cut, grinding machine, drill, fill out the machineries such as line, spot welding
Running machine motor brush is obtained final product after procedure of processing.
7th, according to JB/T8133.14-1999's (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physics
Chemical property test method resistivity) method determine running machine motor brush resistivity；Using
The Shore hardness of HS-19CTV type hardness tester machine private wipers, the results are shown in Table 1；
The wear rate of the obtained running machine motor brush of long duration test controller test is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》The obtained treadmill of test
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 the obtained running machine motor brush of test, test result is shown in Table 4.
Embodiment 3
1st, get the raw materials ready (part) according to following weight：
Wherein, the metal dust is the mixture of copper powder and glass putty, and its weight ratio is 3：1, granularity is 200-400
Mesh；Additive includes molybdenum bisuphide and aluminum phosphate, and the wherein weight ratio of molybdenum bisuphide and aluminum phosphate is 2:1；
Binding agent selects bisphenol A type epoxy resin, and its epoxide number is 0.25-0.45；The firming agent selects asphalt mixtures modified by epoxy resin
Fat latent curing agent T-31 firming agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
By native graphite, soft graphite, polybenzoate resin (PHB), politef, additive, solidification
Agent is placed in kneading pot, opens the tumbler of kneading pot, is mixed under room temperature condition and stop after 1.5h, is obtained
Matrix powder；Bisphenol A type epoxy resin is dissolved in acetone, is uniformly mixed so as to dissolved, made
Obtain binder solution；Binder solution is added to into stirring, mix homogeneously in matrix powder, 1.5h is stirred, is mixed
Uniform rear taking-up material is closed, is placed at room temperature, placed 2-4h and treat that acetone volatilizees so that without acetone in material
Residual, is obtained brush raw mixture.
3rd, brush raw mixture is placed in baking oven first carries out drying and processing 13h at 48 DEG C, further
Acetone is removed, the raw mixture without acetone is obtained；Then break process is carried out to the material after drying, is broken
Broken material crosses 60 mesh sieves, and brush raw mixture powder, brush raw mixture powder size≤60 mesh is obtained.
4th, obtained brush raw mixture powder is placed in compacting tool set, is carried out at compacting using hydraulic press
Reason, it is 1.86-1.90g/cm that bulk density is obtained3Brush blank.
5th, brush blank is placed in baking oven, heat cure process is carried out to brush blank, will be dried first in 4h
Case temperature is increased to 225 DEG C from room temperature, and wherein heating rate is 56.25 DEG C/h；Then at a temperature of 225 DEG C
3h is kept, the brush first product after heat cure is processed is obtained；
6th, to the brush first product after cured is cut, grinding machine, drill, fill out the machineries such as line, spot welding
Running machine motor brush is obtained final product after procedure of processing.
7th, according to JB/T8133.14-1999's (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physics
Chemical property test method resistivity) method determine running machine motor brush resistivity；Using
The Shore hardness of HS-19CTV type hardness tester machine private wipers, the results are shown in Table 1；
The wear rate of the obtained running machine motor brush of long duration test controller test is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》The obtained treadmill of test
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 the obtained running machine motor brush of test, test result is shown in Table 4.
Embodiment 4
1st, get the raw materials ready (part) according to following weight：
Wherein, the metal dust is the mixture of glass putty and argentum powder, and its weight ratio is 2：2, granularity is 200-400
Mesh；Additive includes molybdenum bisuphide and aluminum phosphate, and the wherein weight ratio of molybdenum bisuphide and aluminum phosphate is 2:1；
Binding agent selects bisphenol A type epoxy resin, and its epoxide number is 0.25-0.45；The firming agent selects asphalt mixtures modified by epoxy resin
Fat latent curing agent T-31 firming agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
By native graphite, soft graphite, polybenzoate resin (PHB), politef, additive, solidification
Agent is placed in kneading pot, opens the tumbler of kneading pot, is mixed under room temperature condition and stop after 1.5h, is obtained
Matrix powder；Bisphenol A type epoxy resin is dissolved in acetone, is uniformly mixed so as to dissolved, made
Obtain binder solution；Binder solution is added to into stirring, mix homogeneously in matrix powder, 1.5h is stirred, is mixed
Uniform rear taking-up material is closed, is placed at room temperature, placed 2-4h and treat that acetone volatilizees so that without acetone in material
Residual, is obtained brush raw mixture.
3rd, brush raw mixture is placed in baking oven first carries out drying and processing 14h at 45 DEG C, further
Acetone is removed, the raw mixture without acetone is obtained；Then break process is carried out to the material after drying, is broken
Broken material crosses 60 mesh sieves, and brush raw mixture powder, brush raw mixture powder size≤60 mesh is obtained.
4th, obtained brush raw mixture powder is placed in compacting tool set, is carried out at compacting using hydraulic press
Reason, it is 1.90-1.94g/cm that bulk density is obtained3Brush blank.
5th, brush blank is placed in baking oven, heat cure process is carried out to brush blank, will be dried first in 6h
Case temperature is increased to 240 DEG C from room temperature, and wherein heating rate is 40 DEG C/h；Then protect at a temperature of 240 DEG C
5h is held, the brush first product after heat cure is processed is obtained；
6th, to the brush first product after cured is cut, grinding machine, drill, fill out the machineries such as line, spot welding
Running machine motor brush is obtained final product after procedure of processing.
7th, according to JB/T8133.14-1999's (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physics
Chemical property test method resistivity) method determine running machine motor brush resistivity；Using
The Shore hardness of HS-19CTV type hardness tester machine private wipers, the results are shown in Table 1；
The wear rate of the obtained running machine motor brush of long duration test controller test is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》The obtained treadmill of test
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 the obtained running machine motor brush of test, test result is shown in Table 4.
Embodiment 5
1st, get the raw materials ready (part) according to following weight：
Wherein, the metal dust is the mixture of glass putty and tungsten powder, and its weight ratio is 2：2, granularity is 200-400
Mesh；Additive includes molybdenum bisuphide and aluminum phosphate, and the wherein weight ratio of molybdenum bisuphide and aluminum phosphate is 2:1；
Binding agent selects bisphenol A type epoxy resin, and its epoxide number is 0.25-0.45；The firming agent selects asphalt mixtures modified by epoxy resin
Fat latent curing agent T-31 firming agent (Changzhou mountain peak Chemical Co., Ltd.).
2nd, brush preparing raw material mixture
By native graphite, soft graphite, polybenzoate resin (PHB), politef, additive, solidification
Agent is placed in kneading pot, opens the tumbler of kneading pot, is mixed under room temperature condition and stop after 1.5h, is obtained
Matrix powder；Bisphenol A type epoxy resin is dissolved in acetone, is uniformly mixed so as to dissolved, made
Obtain binder solution；Binder solution is added to into stirring, mix homogeneously in matrix powder, 1.5h is stirred, is mixed
Uniform rear taking-up material is closed, is placed at room temperature, placed 2-4h and treat that acetone volatilizees so that without acetone in material
Residual, is obtained brush raw mixture.
3rd, brush raw mixture is placed in baking oven first carries out drying and processing 10h at 55 DEG C, further
Acetone is removed, the raw mixture without acetone is obtained；Then break process is carried out to the material after drying, is broken
Broken material crosses 60 mesh sieves, and brush raw mixture powder, brush raw mixture powder size≤60 mesh is obtained.
4th, obtained brush raw mixture powder is placed in compacting tool set, is carried out at compacting using hydraulic press
Reason, it is 1.92-1.95g/cm that bulk density is obtained3Brush blank.
5th, brush blank is placed in baking oven, heat cure process is carried out to brush blank, will be dried first in 4h
Case temperature is increased to 220 DEG C from room temperature, and wherein heating rate is 55 DEG C/h；Then protect at a temperature of 220 DEG C
4h is held, the brush first product after heat cure is processed is obtained；
6th, to the brush first product after cured is cut, grinding machine, drill, fill out the machineries such as line, spot welding
Running machine motor brush is obtained final product after procedure of processing.
7th, according to JB/T8133.14-1999's (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of running machine motor brush；According to JB/T8133.2-1999 (electric carbon product physics
Chemical property test method resistivity) method determine running machine motor brush resistivity；Using
The Shore hardness of HS-19CTV type hardness tester machine private wipers, the results are shown in Table 1；
The wear rate of the obtained running machine motor brush of long duration test controller test is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》The obtained treadmill of test
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 the obtained running machine motor brush of test, test result is shown in Table 4.
Reference examples
With commercially available running machine motor (HX-852B, DC180V/1.5HP) with brush as reference examples.
According to the side of JB/T8133.14-1999 (electric carbon product physical and chemical performance test method bulk density)
Method determines the bulk density of reference examples running machine motor brush；According to JB/T8133.2-1999 (electric carbon products
Physical and chemical performance test method resistivity) method determine reference examples running machine motor brush resistivity；
The Shore hardness of reference examples brush is tested using HS-19CTV type hardness testers machine, 1 is the results are shown in Table；
The wear rate that long duration test controller tests reference examples running machine motor brush is loaded using FNC-5 types,
Result of the test is shown in Table 2；
With reference to national standard《Electric rotating machine quota and performance (GB/T 755-2000)》Test reference examples treadmill
High pressure resistant, the grade of spark of brush for electromachine, test result is shown in Table 3；
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 test reference examples running machine motor brush, test result is shown in Table 4.
The physical and mechanical propertiess 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) | 1.60 | 1.62 | 1.63 | 1.65 | 1.63 | 1.38 |
| Shore hardness (HSD) | 24 | 25 | 26 | 24 | 25 | 22 |
| Resistivity (μ Ω m) | 1800 | 1600 | 1100 | 1500 | 1650 | 2200 |
| Rupture strength (MPa) | 12 | 13 | 11 | 12 | 12 | 16 |
The test result of table 1 shows：The bulk density of running machine motor brush prepared by the present invention is
1.60-1.65g/cm3；The resistivity 1100-1800 μ Ω m of running machine motor brush, resistance is moderate, is suitable for
Use in high pressure (DC 180V) running machine motor.And the resistivity of existing running machine motor brush is high,
Brush efficiency is low, and spark stability is poor.
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) | 0.98 | 1.03 | 0.95 | 1.13 | 1.09 | 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, anti-wear performance is excellent, hence it is evident that better than the anti-wear performance of Imported Electrical Brush in reference examples.
The grade of spark result of the test 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,
Compared with the running machine motor brush of common commercially available import, grade of spark reduces 1 grade, suppresses spark
Ability is good, improves safety in utilization.
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 reference examples import carbon
Brush is high, is a kind of energy-saving running machine motor brush.
Claims (10)
1. a kind of running machine motor brush, is prepared by the following method and forms：：
By the way that matrix powder is mixed homogeneously with binder solution, brush raw mixture is prepared；
The brush raw mixture is dried, break process, brush raw mixture powder is obtained；
The brush raw mixture powder is added in compacting tool set, compression process is carried out to it, electricity is obtained
Brush blank；
Heat cure process is carried out to the brush blank, brush first product is obtained；
Finished product processed is carried out to the brush first product, brush finished product is obtained；
It is characterized in that：Described matrix powder includes graphite, polybenzoate resin, politef and metal dust.
2. brush according to claim 1, it is characterised in that the graphite, polybenzoate resin, poly-
The weight of tetrafluoroethene and metal dust is 70-95:1-3:2-4:5-15.
3. brush according to claim 2, it is characterised in that the graphite includes native graphite and soft
Property graphite, the native graphite and the soft graphite weight be 65-85:5-10.
4. brush according to claim 3, it is characterised in that the native graphite, soft graphite,
The weight of polybenzoate resin, politef and metal dust is 65-85:5-10:1-3:2-4:5-15.
5. brush according to claim 3, it is characterised in that described matrix powder also includes additive
And firming agent.
6. brush according to claim 5, it is characterised in that the native graphite, soft graphite,
The weight of polybenzoate resin, politef, metal dust, additive and firming agent is
65-85:5-10:1-3:2-4:5-15:1-5:0.5-3。
7. brush according to claim 6, it is characterised in that the native graphite, soft graphite,
Polybenzoate resin, politef, metal dust, additive, the weight of firming agent are
65-75:6-8:1-3:2-4:8-12:1.5-5:1-3。
8. brush according to claim 7, it is characterised in that the metal dust includes copper powder, silver
One or more in powder, tungsten powder and glass putty.
9. brush according to claim 1, it is characterised in that the temperature of the drying and processing is
15-55℃。
10. brush according to claim 1, it is characterised in that the temperature that the heat cure is processed is
220-240℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741575.3A CN106654782A (en) | 2015-11-04 | 2015-11-04 | Electric brush for treadmill motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510741575.3A CN106654782A (en) | 2015-11-04 | 2015-11-04 | Electric brush for treadmill motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654782A true CN106654782A (en) | 2017-05-10 |
Family
ID=58851401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510741575.3A Pending CN106654782A (en) | 2015-11-04 | 2015-11-04 | Electric brush for treadmill motor |
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| Country | Link |
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Cited By (3)
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| CN111244711A (en) * | 2018-11-28 | 2020-06-05 | 苏州东翔碳素有限公司 | Electric brush material for motor |
| CN111244712A (en) * | 2018-11-28 | 2020-06-05 | 苏州东翔碳素有限公司 | Electric brush material for motor |
| DE102023125760A1 (en) | 2023-09-22 | 2025-03-27 | Schaeffler Technologies AG & Co. KG | Electric machine with sliding contacts |
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| CN111244711A (en) * | 2018-11-28 | 2020-06-05 | 苏州东翔碳素有限公司 | Electric brush material for motor |
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| CN111244712B (en) * | 2018-11-28 | 2022-01-25 | 苏州东翔碳素有限公司 | Electric brush material for motor |
| CN111244711B (en) * | 2018-11-28 | 2022-01-25 | 苏州东翔碳素有限公司 | Electric brush material for motor |
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| DE102023125760B4 (en) * | 2023-09-22 | 2025-04-30 | Schaeffler Technologies AG & Co. KG | Electric machine with sliding contacts |
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