CN210265516U

CN210265516U - Self-lubricating heat dissipation bearing plate

Info

Publication number: CN210265516U
Application number: CN201921039686.XU
Authority: CN
Inventors: 梁国正; 韩建; 王志龙
Original assignee: Jiangsu Liyi New Material Technology Co ltd
Current assignee: Jiangsu Liyi New Material Technology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-07
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a self-lubricating heat-dissipating bearing plate, which comprises a lubricating copper powder layer, a steel plate layer, an epoxy structure adhesive layer, a fluorine-containing layer polyimide film layer, a heat-conducting adhesive layer, a heat-dissipating layer and a zinc oxide layer; the heat dissipation layer comprises porous fiber and aerogel; the porous fibers are positioned in the aerogel; the porous fiber comprises porous fiber and a porous fiber adhesive layer; the porous fiber glue layer is positioned on the outer surface of the porous fiber; a graphene layer structure is arranged in the holes of the porous fiber adhesive layer; the lubricating copper powder layer, the steel plate layer, the epoxy structure adhesive layer, the fluorine-containing layer polyimide film layer, the heat conducting adhesive layer, the heat dissipation layer and the zinc oxide layer are sequentially arranged; the excellent heat dispersion of self-lubricating bearing is improved simultaneously, can exert crooked effect.

Description

Self-lubricating heat dissipation bearing plate

Technical Field

The utility model belongs to the technical field of the bearing production, concretely relates to self-lubricating heat dissipation bearing panel.

Background

Self-lubricating bearings are beginning to be appreciated as being suitable where lubrication is unreliable or impossible. The self-lubricating bearing made of single material generally has two structures of copper powder metallurgy and plastic. The copper powder metallurgy structure has lower strength, is difficult to adapt to the working condition with high load, and is easy to cause strain in the running-in period. The service life of the self-lubricating bearing can be prolonged by adopting macromolecule protection on the back of the steel plate, but the heat dissipation problem is brought. The inventor discloses a heat dissipation plate before, has improved panel radiating effect, utilizes the copper granule to solve the problem of fluorine material and steel sheet cohesion, but this structure brings some problems, for example the copper granule mainly utilizes physical action to stabilize fluorine material, and most importantly can produce great influence to the lubricated copper powder when sintering the copper granule to the steel sheet, because the performance of lubricated copper powder is the core of bearing plate material, consequently must sinter lubricated copper powder earlier, sinter the copper granule again after it is qualified to check, can produce lubricated copper powder secondary sintering like this, influence lubricating property, increase and reduce the yield.

Disclosure of Invention

The utility model aims at providing a self-lubricating heat dissipation bearing plate material, through structural design and the synergism of thinking innovation for self-lubricating heat dissipation bearing plate material possesses good mechanical properties, has excellent interlaminar stability simultaneously, and especially heat dispersion is excellent, has effectively improved self-lubricating heat dissipation bearing plate material's performance, range of application, can be used to high-end self-lubricating bearing's preparation.

In order to achieve the purpose of the utility model, the utility model adopts the technical proposal that: a self-lubricating heat dissipation bearing plate comprises a lubricating copper powder layer, a steel plate layer, an epoxy structure adhesive layer, a fluorine-containing layer polyimide film layer, a heat conduction adhesive layer, a heat dissipation layer and a zinc oxide layer; the heat dissipation layer comprises porous fibers and aerogel; the porous fibers are located in the aerogel; the porous fiber comprises porous fiber and a porous fiber adhesive layer; the porous fiber glue layer is positioned on the outer surface of the porous fiber; a graphene layer structure is arranged in the holes of the porous fiber adhesive layer; the lubricating copper powder layer, the steel plate layer, the epoxy structure adhesive layer, the fluorine-containing layer polyimide film layer, the heat conducting adhesive layer, the heat dissipation layer and the zinc oxide layer are sequentially arranged; preferably, a release film layer is arranged on the outer side of the zinc oxide layer.

The utility model discloses in, heat-conducting adhesive layer's thickness is 0.6 ~ 0.7 micron, can form good adhesion on the one hand, and on the other hand can convey the heat.

In the utility model, the lubricating copper powder layer, the steel plate layer, the epoxy structure adhesive layer, the fluorine-containing layer polyimide film layer, the heat conducting adhesive layer, the heat dissipation layer and the zinc oxide layer are arranged in sequence, which means that the layers are arranged in sequence, and the figure of the specification can be referred to specifically; during the use, arrange the lubricated copper powder layer in the most inside and be used for the friction, arrange the zinc oxide layer in the outermost to the heat that generates heat conducts to the aerogel structure rapidly through epoxy structure glue film, thereby effectively looses, consequently the utility model discloses not only be an effective heat radiation structure, moreover to the bearing housing life of panel preparation favourable, the backing layer structure has guaranteed that the due intensity of bearing layer and stable size have improved wear resistance, has also avoided the emergence of strain phenomenon.

In the utility model, each material is the existing product, for example, the lubricating copper powder layer is the conventional structure, and can be obtained by mixing and sintering the copper powder and the lubricating material, especially, according to the structure designed by the utility model, the lubricating copper powder can not be sintered for the second time which greatly affects the performance; the thickness of the polyimide film layer containing the fluorine layer is 18.5 microns, the design of the structure can improve the back hardness of the bearing plate, and the polyimide film layer containing the fluorine layer can provide a certain buffering effect with aerogel when being curled; the zinc oxide layer can be obtained by spraying the zinc oxide on the surface of the heat dissipation layer, and can play a role in protection; the utility model discloses this structure of creative design is used for the first time in the preceding flitch material composite construction of self-lubricating bearing, can exert self performance effect and improve combined material's pliability, more importantly with porous fiber's combination, cooperation graphite alkene improves heat-sinking capability self-heating.

In the utility model, the thickness of the heat dissipation layer is 48-50 microns, so that the heat dissipation effect can be exerted besides the good mechanical performance effect, and the overall bending capacity can be improved by the thickness and the aluminum plate; the aerogel is conventional silicon dioxide aerogel and is prepared by combining a sol-gel method with drying, porous fibers are added after a solvent is replaced by sol, and finally, temperature programming is carried out to prepare the heat dissipation layer.

The utility model discloses in, the heat dissipation layer includes porous fiber, aerogel, the porosity of aerogel structure is 38 ~ 42%, sets up porous fiber in low porosity aerogel structure, both can utilize the soft comfortable characteristic of current aerogel to alleviate foraminiferous fibrous rigidity, especially, the aerogel structure further guarantees that graphite alkene layer stabilizes in the glue film, can not influence the radiating effect moreover.

The utility model discloses in, the porosity of porous fiber glue film is 68 ~ 70%, can take the flexible polymer solution that porous fiber surface coating has porogenic agent/graphite alkene complex, and heat treatment forms porous glue film at foraminiferous fibrous surface to graphite alkene layer is in the hole, can exert heat dispersion, can remain stable again, and the fibre can be for polyvinyl alcohol fibre etc. especially the utility model discloses a structure can not produce the influence to fibre itself, avoids the problem that fibre itself performance that prior art adopted the heat conduction fibre to bring influences.

The utility model discloses a self-lubricating heat dissipation bearing plate for the first time, the obtained product has better hardness and bending property, the heat dissipation effect can be exerted while the self-lubricating property is kept, the self-lubricating heat dissipation bearing plate is rolled into a bearing sleeve by adopting the conventional technology, the self-lubricating heat dissipation bearing plate is closed after internal heating (180 degrees) is carried out for a period of time, and the heat dissipation capacity is tested through internal and external balance; through the design of the fiber and the multilayer structure, the advantages of stable and efficient heat dissipation and good interface effect of each layer are effectively guaranteed; particularly, the good interface effect of the epoxy-polyimide-fluorine material is utilized, so that the polymer layer is well combined with the steel plate, and series problems caused by copper particles are avoided.

Drawings

FIG. 1 is a schematic structural diagram of a self-lubricating heat-dissipating bearing plate;

FIG. 2 is a schematic view of a heat dissipation layer;

FIG. 3 is a schematic view of a porous fiber structure;

the composite material comprises a lubricating copper powder layer 1, a steel plate layer 2, an epoxy structure adhesive layer 3, a fluorine-containing layer polyimide film layer 4, a polyimide film side 41, a fluorine material side 42, a heat conducting adhesive layer 5, a heat dissipation layer 6, a zinc oxide layer 7, porous fibers 8, aerogel 9, porous fibers 10, a porous fiber adhesive layer 11 and a graphene layer structure 12.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example one

Referring to the attached drawings 1-3, the self-lubricating heat-dissipating bearing plate comprises a lubricating copper powder layer 1, a steel plate layer 2, an epoxy structure adhesive layer 3, a fluorine-containing layer polyimide film layer 4, a heat-conducting adhesive layer 5, a heat-dissipating layer 6 and a zinc oxide layer 7; the heat dissipation layer comprises porous fibers 8 and aerogel 9; the porous fibers are positioned in the aerogel; the porous fiber comprises porous fiber 10 and a porous fiber glue layer 11; the porous fiber glue layer is positioned on the outer surface of the porous fiber; a graphene layer structure 12 is arranged in the holes of the porous fiber adhesive layer; the lubricating copper powder layer, the steel plate layer, the epoxy structure adhesive layer, the fluorine-containing layer polyimide film layer, the heat conducting adhesive layer, the heat dissipation layer and the zinc oxide layer are sequentially arranged, wherein one side 41 of the polyimide film (12.5 microns) is in contact with the epoxy structure adhesive layer, and one side 42 of the fluorine material is in contact with the heat conducting adhesive layer.

The thickness of the fluorine-containing layer polyimide film layer is 18.5 micrometers; the porosity of the aerogel structure is 40%; the porosity of the porous fiber adhesive layer is 70%; the thickness of the heat dissipation layer is 50 microns; the thickness of the heat-conducting adhesive layer is 0.6 microns; the thickness of the epoxy structure glue layer is 0.25 micron; the thickness of the zinc oxide layer was 25 nm. In the figure, the graphene structure, the fiber and the like are only marked at one position, and the pores of the aerogel are not marked, so that the understanding of the person skilled in the art is not influenced.

Comparative example 1

The self-lubricating bearing plate comprises a lubricating copper powder layer and a steel plate layer.

Comparative example No. two

The self-lubricating bearing plate comprises a lubricating copper powder layer, a steel plate layer, an epoxy structure adhesive layer and a fluorine-containing layer polyimide film layer. The thickness of the fluorine-containing layer polyimide film layer is 18.5 micrometers; the thickness of the epoxy structural adhesive layer is 0.25 microns.

In the above embodiment, the fluorine-containing layer polyimide film layer (12.5/6 μm) is from a kelin film, the sintering of the lubricating copper powder layer and the steel plate layer is prior art, the preparation of each layer is also prior art, and the bending strength tester is used to test (create) the bending strength; compared with the comparative example I, the performance test shows that the bending strength of the self-lubricating radiating bearing plate of the example I is improved by 1.62 times, and the radiating capacity is 0.91 time; the bending strength of the self-lubricating bearing plate of the comparative example II is improved by 1.19 times, and the heat dissipation capacity is 0.65 time; when the thickness of the heat dissipation layer is increased and decreased, the heat dissipation performance and the bending performance are reduced compared with the embodiment; compared with the test by adopting a peeling force tester, if the epoxy structure adhesive layer is not arranged, the peeling performance of the fluorine-containing layer polyimide film layer is reduced by more than 60 percent. In addition, compare with the copper particle heat dissipation type self-lubricating bearing plate material of preparation before, the utility model discloses a structure can not influence lubricated copper powder's performance, and product yield 100% (1000 blocks of panel), and copper particle heat dissipation type self-lubricating bearing plate material product yield is only 26% (50 blocks of panel), and wherein the lubricated copper bisque of 37 blocks of panel is not conform to the operation requirement owing to the secondary sintering.

Example two

On the basis of the first embodiment, the release film layer is arranged on the outer side of the zinc oxide layer, so that the zinc oxide layer is protected during curling and the shaft sleeve is protected during transportation, and after the shaft sleeve is arranged on the existing support, the release film layer is torn off and the shaft sleeve can be used conventionally; actual production discovers that the plate containing the release film layer is not cracked after being rolled into the shaft sleeve, and meanwhile, the shaft sleeve is not scratched in the transportation process, and relatively speaking, machine inspection discovers that about 6 ten-thousandth of cracks of the zinc oxide layer exist in the sleeve rolling process and scratches also exist in the transportation process when the release film layer is not formed. The release film is a conventional product purchased in the market, and the release film is tightly attached to the outer side of the zinc oxide layer, and the technical personnel in the field can easily understand that the utility model discloses creatively uses it for lubricating the axle sleeve.

Claims

1. The utility model provides a self-lubricating heat dissipation bearing panel which characterized in that: the self-lubricating heat-dissipation bearing plate comprises a lubricating copper powder layer, a steel plate layer, an epoxy structure adhesive layer, a fluorine-containing layer polyimide film layer, a heat-conducting adhesive layer, a heat dissipation layer and a zinc oxide layer; the heat dissipation layer comprises porous fibers and aerogel; the porous fibers are located in the aerogel; the porous fiber comprises porous fiber and a porous fiber adhesive layer; the porous fiber glue layer is positioned on the outer surface of the porous fiber; a graphene layer structure is arranged in the holes of the porous fiber adhesive layer; the lubricating copper powder layer, the steel plate layer, the epoxy structure adhesive layer, the fluorine-containing layer polyimide film layer, the heat conducting adhesive layer, the heat dissipation layer and the zinc oxide layer are sequentially arranged.

2. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the thickness of the fluorine-containing layer polyimide film layer is 18.5 micrometers.

3. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the porosity of the aerogel structure is 38-42%.

4. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the porosity of the porous fiber adhesive layer is 68-70%.

5. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the thickness of the heat dissipation layer is 48-50 microns.

6. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the thickness of the heat-conducting adhesive layer is 0.6-0.7 microns.

7. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the thickness of the epoxy structure glue layer is 0.2-0.3 microns.

8. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the thickness of the zinc oxide layer was 25 nm.

9. The self-lubricating heat-dissipating bearing plate material as claimed in claim 1, wherein: the outer side of the zinc oxide layer is provided with a release film layer.