CN208045902U - A kind of preparation facilities of graphene carbon brush - Google Patents
A kind of preparation facilities of graphene carbon brush Download PDFInfo
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- CN208045902U CN208045902U CN201820607687.9U CN201820607687U CN208045902U CN 208045902 U CN208045902 U CN 208045902U CN 201820607687 U CN201820607687 U CN 201820607687U CN 208045902 U CN208045902 U CN 208045902U
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- carbon brush
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Abstract
The utility model discloses a kind of preparation facilities of graphene carbon brush, and wherein carbon brush is made of following raw material：Crystalline graphite powder, graphene, superhigh molecular weight polyethylene fibers, copper nanoparticle, copper powder, copper-cobalt alloy powder, boron modified phenolic resin and deionized water；Preparation method includes：The mixing of the mixing of the pretreatment of crystalline graphite powder, superhigh molecular weight polyethylene fibers, graphene and superhigh molecular weight polyethylene fibers, boron modified phenolic resin and premix, dry, screening, press mold molding bake；Preparation facilities is used to boron modified phenolic resin solution injecting the premix in a manner of spraying, including：Containing tube, horizontal inlet tube, outlet tube and vertical inlet tube, containing tube are internally provided with solution accommodating cavity, and horizontal inlet tube is provided with nozzle, and the nozzle is in truncated cone, and the surface of nozzle is provided with multiple nozzles；The total tune of the graphene carbon brush electric conductivity, wearability and the material property that are prepared by the device enhances.
Description
Technical field
The utility model is related to field of material technology, more particularly to a kind of preparation facilities of graphene carbon brush.
Background technology
Carbon brush is also brush, as a kind of slide contact member, is widely used in many electrical equipments.Carbon brush is
The device of energy or signal, external form are transmitted between motor or the fixed part and rotating part of generator or other rotating machineries
Usually square, carbon brush is stuck on the metallic support inside motor, and has spring that carbon brush is pressed on shaft inside motor
On, when machine shaft rotates, electric energy is conveyed to coil by carbon brush by phase changer.
Carbon brush has larger abrasion after a longer time of use, includes mainly：Purely mechanic abrasion and electrical abrasion.Pure machine
Tool abrasion, along with the reason of spring pressure effect and elastic properties of materials deformation, is made straight since carbon brush and slip ring surface are in contact
Contact portion is connect to be embedded in mutually.When opposite sliding, there is rubbing action and form abrasion.If carbon brush particle is soft, carbon dust
It easily is stained on slip ring surface, slip ring is made to become the stone mill minute surface with bright cunning, the flour milling of carbon brush is also very smooth, the machinery mill of the two
Damage is all smaller.But if carbon brush quality is bad, particle is thick and stiff, or even contains a small number of hard particles such as diamond dust etc, then
Slip ring surface will necessarily scrape cutting, so that the latter metallic luster or lines is occurred, it is de- that carbon brush flour milling itself also will appear solids
The track for falling behind and marking, further increases mechanical wear.
Carbon brush material can be divided into carbon graphite class, electrographite class, metallic graphite carbon class, wherein metallic graphite carbon class carbon brush system at present
Make that the period is shorter, and manufacture craft is relatively easy, application is relatively broad.Alloying element has to a certain degree hardness, the toughness of material
Raising, but showed in electric conductivity and wearability poor, the total tune of material property is weaker, and using effect is bad,
Lead to carbon brush degradation after long-time use.
Utility model content
To overcome the problems in correlation technique, the utility model provides a kind of preparation facilities of graphene carbon brush, with
The electric conductivity and wearability for enhancing carbon brush, improve the total tune of material property.
According to a kind of preparation facilities of graphene carbon brush provided by the utility model, including：Containing tube, horizontal inlet tube,
Outlet tube and vertical inlet tube, the horizontal inlet tube are horizontally placed on the both ends of the containing tube, institute with the outlet tube
State the top of vertical inlet tube setting and the containing tube, the containing tube is internally provided with solution accommodating cavity, it is described it is horizontal into
Liquid pipe, the outlet tube and the vertical inlet tube are in hollow tubular, the horizontal inlet tube, the outlet tube and institute
Vertical inlet tube is stated to be connected with the solution accommodating cavity；
The horizontal inlet tube is located at one section of the inside of the solution accommodating cavity and is provided with nozzle, and the nozzle is in circular cone
The surface of platform shape, the nozzle is provided with multiple nozzles, and the nozzle is in hollow tubular, the nozzle and the horizontal inlet tube
It is connected.
Optionally, the outlet tube is in hollow cone tubulose, and the outlet tube is detachably connected with the containing tube.
Optionally, multiple nozzles are circumferentially distributed in the nozzle surface.
Optionally, top one end of the vertical inlet tube is provided with support rim.
Optionally, the arc-shaped hollow tubular of the nozzle.
The preparation facilities of a kind of graphene carbon brush provided by the utility model, in use, being first placed in premix molten
In liquid accommodating cavity, boron modified phenolic resin is penetrated with high-pressure injection device from one end of the separate solution accommodating cavity of horizontal inlet tube
Enter in solution accommodating cavity, the effect of high pressure enables boron modified phenolic resin quickly to be mixed with premix, and due to nozzle
In truncated cone, there are multiple nozzles on the surface of nozzle, so boron modified phenolic resin can be sprayed from all directions so that boron changes
Property phenolic resin can be sufficiently mixed with premix, to increase the cementation of boron modified phenolic resin, finally
Improve the total tune of carbon brush material performance.
Description of the drawings
It, below will be to attached drawing needed in the embodiment in order to illustrate more clearly of the technical solution of the utility model
It is briefly described, it should be apparent that, for those of ordinary skills, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of partial sectional view of the preparation facilities of the graphene carbon brush provided according to an exemplary embodiment；
Fig. 2 is a kind of overall schematic of the preparation facilities of the graphene carbon brush provided according to an exemplary embodiment；
Fig. 3 is a kind of partial sectional view of the preparation facilities of the graphene carbon brush provided according to another exemplary embodiment.
Specific implementation mode
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the utility model.On the contrary, they be only with such as
The example of the consistent device and method of some aspects be described in detail in the appended claims, the utility model.
A kind of graphene carbon brush, carbon brush are made of the raw material of following parts by weight：Crystalline graphite powder 30~40, graphene 1.2
~2.0, superhigh molecular weight polyethylene fibers 3~4, copper nanoparticle 1~2, copper powder 50~60, copper-cobalt alloy powder 1~2, boron modification
Phenolic resin 10~20 and deionized water 80~90.The graphene carbon brush that the utility model embodiment provides is using copper powder as base
Material, addition crystalline graphite powder increase self lubricity, and graphene has fabulous conduction and thermal conductivity, overcomes metal material resistance
Larger disadvantage adds cobalt powder in copper powder, and wherein cobalt powder has good inoxidizability, can effectively reduce copper product corruption
The probability of erosion；In order to further enhance wearability, superhigh molecular weight polyethylene fibers are added, with superpower wearability, and
And have preferable adsorptivity to other materials, wherein being added to boron modified phenolic resin, boron modified phenolic resin can enhance
Adhesive property between other materials, and be less susceptible to compared to other resinoid bonds coked, it can be seen that this practicality is new
The carbon brush of type has the total tune of good material property.
In addition, showing often to add the graphene of one thousandth parts by weight, the heat resistance of product by experimental study in product
30 DEG C can be improved, temperature tends to reach 300 DEG C~400 DEG C carbon brush when in use, so the parts by weight of graphene are best
It is 1.2~1.7, preferable heat-conducting effect can be generated.
According to the preparation method for the graphene carbon brush that an exemplary embodiment provides, include the following steps：
In step sl, spheroidization handles crystalline graphite powder, obtains the crystalline graphite powder of surface modification.After spheroidization processing
Crystalline graphite powder, specific surface area reduces, and surface energy reduces, the further spheroidizing of crystalline graphite powder, poly- with super high molecular weight
When vinyl fiber mixes, it can more effectively be adsorbed on the surface of superhigh molecular weight polyethylene fibers.
In step s 2, it is 80 °~90 ° by superhigh molecular weight polyethylene fibers mill to beating degree, water is removed after filtering
Point, obtain pretreated superhigh molecular weight polyethylene fibers.The higher superhigh molecular weight polyethylene fibers of beating degree, fiber are thinner
Change, it is easier to which other materials is combined, and drainage is also faster when filter operation.
In step s3, pretreated superhigh molecular weight polyethylene fibers are added in deionized water and are stirred evenly, obtained
Superhigh molecular weight polyethylene fibers dispersion liquid.Wherein deionized water is the pure water removed in after ionic species, uses deionized water
Preparation superhigh molecular weight polyethylene fibers dispersion liquid, it is possible to reduce impurity is produced to graphene carbon brush and the influence of using effect.
In step s 4, graphene is added in the superhigh molecular weight polyethylene fibers dispersion liquid, is uniformly mixed
50~60h is stood afterwards, is filtered after standing, and product is dried after washing, and the ultra-high molecular weight polyethylene for obtaining load graphene is fine
Dimension.Graphene is added in superhigh molecular weight polyethylene fibers dispersion liquid, and graphene has well with superhigh molecular weight polyethylene fibers
Associativity and dispersibility.
In step s 5, boron modified phenolic resin is dissolved with solvent, obtains boron modified phenolic resin solution.
In step s 6, the superhigh molecular weight polyethylene of the crystalline graphite powder, the load graphene that the surface are modified
Alkene fiber, the copper nanoparticle, the copper powder and the copper-cobalt alloy powder are uniformly mixed, and premix are obtained, by the boron
Modified phenolic resin lipoprotein solution is injected in a manner of spraying in the premix, and solvent is evaporated off, and just mixed carbon brush powder is obtained, by boron
Modified phenolic resin lipoprotein solution is injected with spray regime in premix, can refine boron modified phenolic resin solution so that boron changes
Property phenolic resin is distributed more uniform in premix, also improves the adhesive property of boron modified phenolic resin.
In the step s 7, it will just mix carbon brush and be dried 4~5h, and obtain dry just mixed carbon brush powder.
In step s 8, it will just mix carbon brush powder to be crushed with pulverizer, and cross the sub-sieve of 300 mesh, obtain first through screening
Mixed carbon brush powder will just mix carbon dust crushing, and be screened through sub-sieve, it is also possible that being finally molded carbon brush in all directions
Performance is identical, improves the total tune of material property.
In step s 9, the first mixed carbon brush powder through screening is molded in moulding press upper die, obtains green body, bakes base
Body obtains the graphene carbon brush.
In step sl, the step of spheroidization processing crystalline graphite powder includes：Using high-speed flow impact device to described
The processing of crystalline graphite powder spheroidization, the linear velocity of the air-flow of the high-speed flow impact device are 80m/s, processing time 2h,
Wherein rotating speed is higher, and processing time is longer, and sphericity is better, because of the increase of sphericity, coefficient of internal friction and sticks shear strength
It reduces, influence each other reduction between particle, and mobility is improved so that crystalline graphite powder is more easy to mix with other materials
It is even.
In step s 2, further include being pre-processed after dewatered filtrate carries out overweight centrifugal treating after filtering
Superhigh molecular weight polyethylene fibers.Overweight centrifugal treating can make the superhigh molecular weight polyethylene fibers handled by mill
Further refinement improves the mixability with other materials.
Further include following steps before step S2：By polyvinyl resin with super-high molecular weight in 140 DEG C~275 DEG C temperature
Lower heating 1min~30min, the product gone out with heat treated ultra-high molecular weight polyethylene (UHMW-PE) powder pressing and not heat
Processed product compares, the former has physically better performance and the transparency, the smooth degree and low temperature machine of product surface
Tool performance substantially increases.So the heat treatment before step S2 can further increase the vertical machine of ultra-high molecular weight polyethylene
Tool performance.
Fig. 1, Fig. 2 are respectively a kind of partial cutaway of the preparation facilities of the graphene carbon brush provided according to an exemplary embodiment
View and according to an exemplary embodiment provide a kind of graphene carbon brush preparation facilities overall schematic, the preparation facilities
Including：
Containing tube 1, horizontal inlet tube 2, outlet tube 3 and vertical inlet tube 4, the horizontal inlet tube 2 with it is described go out liquid
Pipe 3 is horizontally placed on the both ends of the containing tube 1, and the vertical inlet tube 4 is set to the top of the containing tube 1, the appearance
It sets pipe 1 and is internally provided with solution accommodating cavity 11, the horizontal inlet tube 2, the outlet tube 3 and the vertical inlet tube 4 are equal
In hollow tubular, the horizontal inlet tube 2, the outlet tube 3 and the vertical inlet tube 4 with the solution accommodating cavity 11
It is connected.
The horizontal inlet tube 2 be located at the inside of the solution accommodating cavity 11 one section is provided with nozzle 21, the nozzle
21 be in truncated cone, and the surface of the nozzle 21 is provided with multiple nozzles 22, and the nozzle 22 is in hollow tubular, the nozzle 22
It is connected with the horizontal inlet tube 2.
In use, premix is placed in solution accommodating cavity 11 first, from the separate solution accommodating cavity of horizontal inlet tube 2
11 one end is injected boron modified phenolic resin in solution accommodating cavity 11 with high-pressure injection device, and the effect of high pressure makes boron modification
Phenolic resin can be mixed quickly with premix, and since nozzle 21 is in truncated cone, there are multiple nozzles on the surface of nozzle 21
22, so boron modified phenolic resin can be sprayed from all directions so that boron modified phenolic resin can be obtained with premix
It is sufficiently mixed, to increase the cementation of boron modified phenolic resin, the final total tune for improving carbon brush material performance.
Fig. 2 shows outlet tube 3 another embodiment, outlet tube 3 be in hollow cone tubulose, facilitate last mixed liquor
It pours out, outlet tube 3 is detachably connected with containing tube 1, is facilitated to disassemble outlet tube 3 and be cleaned to the inner wall of containing tube 1.
Another embodiment of nozzle 22 shown in Fig. 1, nozzle 22 are circumferentially distributed on the surface of nozzle 21, circle distribution
Advantageous effect be that can ensure to enter in premix from the boron modified phenolic resin projected in nozzle 22 is orderly, prevent from giving birth to
The carbon brush material anisotropy of output, Fig. 2 illustrate only a circle nozzle 22, multi-turn nozzle can also be arranged on 21 surface of nozzle
22 so that boron modified phenolic resin is more rapid to be mixed into premix.
Fig. 2 shows vertical inlet tube 4 another embodiment, it is convex that top one end of vertical inlet tube 4 is provided with support
Platform 41, setting 41 one side of support rim can facilitate and pour into premix in containing tube 1, on the other hand may may require that by
The top of containing tube 1 is sealed, and prevents from that splash occurs when injecting boron modified phenolic resin, so support rim 41 can conduct
Aspect connects the attachment of sealing cover.
Fig. 3 is a kind of partial sectional view of the preparation facilities of the graphene carbon brush provided according to another exemplary embodiment.
Wherein 22 arc-shaped hollow tubular of nozzle, can play the role of boron modified phenolic resin solution certain buffering, and can
The injection for changing boron modified phenolic resin is reversed so that boron modified phenolic resin mixes more uniform with premix.It is optional
, nozzle 22 can adjust the injection of boron modified phenolic resin solution according to actual conditions on the surface of nozzle 21 with rotation angle
Direction.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice utility model disclosed herein
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and include the undocumented this technology neck of the disclosure
Common knowledge in domain or conventional techniques.The description and examples are only to be considered as illustrative, the utility model it is real
Scope and spirit are indicated by the following claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (5)
1. a kind of preparation facilities of graphene carbon brush, which is characterized in that including：Containing tube（1）, horizontal inlet tube（2）, outlet tube
（3）And vertical inlet tube（4）, the horizontal inlet tube（2）With the outlet tube（3）It is horizontally placed on the containing tube（1）
Both ends, the vertical inlet tube（4）It is set to the containing tube（1）Top, the containing tube（1）It is internally provided with solution
Accommodating cavity（11）, the horizontal inlet tube（2）, the outlet tube（3）And the vertical inlet tube（4）It is in hollow tubular,
The horizontal inlet tube（2）, the outlet tube（3）And the vertical inlet tube（4）With the solution accommodating cavity（11）Phase
Connection；
The horizontal inlet tube（2）Positioned at the solution accommodating cavity（11）One section of inside be provided with nozzle（21）, the spray
Mouth（21）In truncated cone, the nozzle（21）Surface be provided with multiple nozzles（22）, the nozzle（22）In hollow tubular,
The nozzle（22）With the horizontal inlet tube（2）It is connected.
2. a kind of preparation facilities of graphene carbon brush as described in claim 1, which is characterized in that the outlet tube（3）In sky
Heart tapered tube shape, the outlet tube（3）With the containing tube（1）It is detachably connected.
3. a kind of preparation facilities of graphene carbon brush as described in claim 1, which is characterized in that multiple nozzles（22）?
The nozzle（21）Surface is circumferentially distributed.
4. a kind of preparation facilities of graphene carbon brush as described in claim 1, which is characterized in that the vertical inlet tube（4）
Top one end be provided with support rim（41）.
5. a kind of preparation facilities of graphene carbon brush as described in Claims 1-4 any one claim, feature exist
In the nozzle（22）Arc-shaped hollow tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820607687.9U CN208045902U (en) | 2018-04-26 | 2018-04-26 | A kind of preparation facilities of graphene carbon brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820607687.9U CN208045902U (en) | 2018-04-26 | 2018-04-26 | A kind of preparation facilities of graphene carbon brush |
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| Publication Number | Publication Date |
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| CN208045902U true CN208045902U (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820607687.9U Expired - Fee Related CN208045902U (en) | 2018-04-26 | 2018-04-26 | A kind of preparation facilities of graphene carbon brush |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524872A (en) * | 2018-11-19 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of forming graphite carbon brush machine filler device and its application method |
-
2018
- 2018-04-26 CN CN201820607687.9U patent/CN208045902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524872A (en) * | 2018-11-19 | 2019-03-26 | 大同新成新材料股份有限公司 | A kind of forming graphite carbon brush machine filler device and its application method |
| CN109524872B (en) * | 2018-11-19 | 2020-06-05 | 大同新成新材料股份有限公司 | Filling device of graphite carbon brush forming machine and using method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20210426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |