CN114085493A - Thrust knuckle bearing and preparation method thereof - Google Patents
Thrust knuckle bearing and preparation method thereof Download PDFInfo
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- CN114085493A CN114085493A CN202111650476.6A CN202111650476A CN114085493A CN 114085493 A CN114085493 A CN 114085493A CN 202111650476 A CN202111650476 A CN 202111650476A CN 114085493 A CN114085493 A CN 114085493A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 58
- 239000003822 epoxy resin Substances 0.000 claims abstract description 26
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 238000009941 weaving Methods 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims description 27
- 238000004804 winding Methods 0.000 claims description 13
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 claims description 4
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 claims description 4
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- LTVUCOSIZFEASK-MPXCPUAZSA-N (3ar,4s,7r,7as)-3a-methyl-3a,4,7,7a-tetrahydro-4,7-methano-2-benzofuran-1,3-dione Chemical compound C([C@H]1C=C2)[C@H]2[C@H]2[C@]1(C)C(=O)OC2=O LTVUCOSIZFEASK-MPXCPUAZSA-N 0.000 claims description 2
- MUTGBJKUEZFXGO-OLQVQODUSA-N (3as,7ar)-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1CCC[C@@H]2C(=O)OC(=O)[C@@H]21 MUTGBJKUEZFXGO-OLQVQODUSA-N 0.000 claims description 2
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 150000002460 imidazoles Chemical class 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 4
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- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a thrust knuckle bearing and a preparation method thereof, wherein the thrust knuckle bearing comprises a bearing main body and a liner; the bearing main body comprises the following components by weight part of 100: 25-45 parts of resin raw material, including epoxy resin, curing agent and accelerator, wherein the weight ratio of the epoxy resin to the curing agent to the accelerator is 100: (70-110) < 0.5-1.5 >; 75-55 parts by weight of glass fiber; the pad is made by warp and weft weaving, and the pad is adhered to the side wall of the inner ring of the bearing main body by resin raw materials. The density of the knuckle bearing manufactured by the invention is less than that of the knuckle bearing made of a metal material, the specific strength is greater than that of the knuckle bearing made of the metal material, the manufacturing cost of the bearing is effectively reduced, the weight of the bearing is effectively reduced, and meanwhile, the gasket is bonded on the side wall of the inner ring of the knuckle bearing, so that the dry friction coefficient of the knuckle bearing in the embodiment of the invention is reduced by 50 percent relative to the metal bearing, the service life of the knuckle bearing is effectively prolonged, and the wear rate is reduced.
Description
Technical Field
The invention relates to the technical field of bearing manufacturing, in particular to a thrust knuckle bearing and a preparation method thereof.
Background
The spherical sliding bearing has sliding contact surface comprising one inner spherical surface and one outer spherical surface capable of swinging at any angle during motion, and is produced through surface phosphorization, blasting, embedding, spraying and other special technological processes. The joint bearing has the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-aligning, good lubrication and the like. The self-lubricating joint bearing is formed by sticking self-lubricating fabric liners on the inner spherical surface and/or the outer spherical surface, and the mechanical abrasion between the inner spherical surface and the outer spherical surface of the joint bearing can be effectively reduced by adding the self-lubricating fabric liners, so that the wear resistance is improved.
The material for manufacturing the bearing main body in the self-lubricating spherical plain bearing is generally a metal material, such as carbon steel, stainless steel, bearing steel, and the like. However, in recent years, with the large consumption of metal materials and the increase in the cost of metal materials, technologies for replacing metal materials with polymer materials as structural and functional parts have been rapidly developed. The prior patent publication No. CN102720758A discloses a composite material backing water-lubricated rubber bearing and a preparation method thereof, wherein a composite material of epoxy resin and glass fiber is used as a water-lubricated bearing jacket instead of brass, so that a large amount of metal materials are saved, and the cost of the water-lubricated bearing product is reduced.
However, the above-mentioned disclosure does not limit the ratio of the epoxy resin to the glass fiber in the bearing body, and too low epoxy resin may cause the glass fiber to break when the joint bearing is under load, resulting in the reduction of the strength and the service life of the joint bearing; in addition, the rubber material is adopted as the bearing lubricating layer in the disclosed technology, the proposed nitrile rubber, polyurethane rubber or styrene butadiene rubber can only be used for a long time at the temperature of about 100 ℃, and the rubber lubricating layer is easy to deform under high temperature and high pressure, so that the service efficiency of the bearing is easily influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a thrust knuckle bearing and a preparation method thereof, and the specific scheme is as follows:
the invention provides a thrust knuckle bearing, which comprises a bearing main body and a liner; the bearing main body comprises the following components in parts by weight, calculated by taking the total weight as 100 parts by weight:
25-45 parts of resin raw material, including epoxy resin, curing agent and accelerator, wherein the weight ratio of the epoxy resin to the curing agent to the accelerator is 100: (70-110) < 0.5-1.5 >;
75-55 parts by weight of glass fiber;
the liner is made by weaving warps and wefts, and is bonded to the side wall of the inner ring of the bearing main body through the resin raw material.
The resin raw material mainly plays a role in fixing the glass fiber in the bearing main body, the glass fiber serves as a bearing unit in the bearing main body and plays a role of a framework, and the glass fiber has the effects of small thermal expansion coefficient, light weight, corrosion resistance and the like compared with the glass fiber made of a metal material. When the resin raw material is less than 25 parts by weight, calculated as 100 parts by weight in total, it is difficult to completely fix the glass fibers in the main structure, which may cause a part of the glass fibers to be in a free state, and the glass fibers in the free state are easily broken when the bearing main body is loaded; when the resin raw material is more than 45 parts by weight, the content of the glass fiber in the bearing main body may be lowered, thereby causing the strength of the joint bearing to be lowered as the content of the resin raw material increases. Preferably, the resin raw material is 25-40 parts by weight, and comprises epoxy resin, a curing agent and an accelerator, wherein the weight ratio of the epoxy resin to the curing agent to the accelerator is 100: (80-110): 1-1.5); 75-60 parts by weight of glass fiber is selected.
Further, the epoxy equivalent of the epoxy resin is 179-195 eq/100 g; the viscosity of the epoxy resin is 5000-16000 mPa.s at 25 ℃. Preferably, an E-51 type epoxy resin having an epoxy equivalent of 184 to 195eq/100g, or an E-54 type epoxy resin having an epoxy equivalent of 179 to 192eq/100g is used.
Further, the glass fiber is selected from one or more of C-glass fiber, E-glass fiber and S-glass fiber. Wherein, R in the C-glass fiber2The content of O is 11.9-16.4%, and the O is medium-alkali glass fiber; e-glass fiber R2The content of O is less than 0.8 percent, and the glass fiber is alkali-free glass fiber; the S-glass fiber is high-strength glass fiber; the acid resistance of the C-glass fiber is better than that of the E-glass fiber, but the strength of the C-glass fiber is lower than that of the E-glass fiber and the S-glass fiber, and the strength of the S-glass fiber is higher than that of the E-glass fiber. For working environments where higher corrosion resistance is required, C-glass fibers may be used, for example: seawater operation; the working environment requiring higher strength can be selected from S-glass fiber, such as: large-scale capital construction operation; other working ringsE-glass fiber can be selected.
Further, the curing agent is selected from one or more of hexahydrophthalic anhydride, tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride and methylnadic anhydride. The curing agent is preferably an anhydride curing agent, the anhydride curing agent has the advantages of low volatility and low skin irritation compared with an amine curing agent, the mixing amount of the anhydride curing agent and the epoxy resin is large, the viscosity of the mixture is low after the anhydride curing agent and the epoxy resin are mixed, and an accelerant is conveniently added for modification in the later period to reduce the cost. The accelerant is one or more selected from dimethylaniline, 2,4, 6-tris (dimethylaminomethyl) phenol and imidazoles. The invention adopts the accelerant of dimethylaniline and 2,4, 6-tri (dimethylaminomethyl) phenol and the curing agent of methyltetrahydrophthalic anhydride to have better compatibility, the curing reaction of the accelerant of imidazole and the curing agent of anhydride has better promoting effect, and the thermal deformation temperature of the cured product can reach 135 ℃.
Further, the warp is made of polytetrafluoroethylene fibers; the weft is selected from one or more of aramid fiber, polyester fiber, glass fiber, carbon fiber, ultra-high molecular weight polyethylene fiber and polyamide fiber. The warp adopts polytetrafluoroethylene fiber to effectively reduce the dry friction coefficient of joint bearing, and polytetrafluoroethylene fiber can take place relative slip and drop between the molecule when producing the friction, and the polytetrafluoroethylene that drops can form one deck transfer film parcel on the weft surface, and the fibrous melting point of polytetrafluoroethylene is 327 ℃, on increasing the self-lubricating effect basis to the bearing, can use for a long time under high temperature and high pressure, indeformable. The liner is made by weaving warp and weft, and the interweaving of warp and weft can prevent polytetrafluoroethylene fiber and weft fiber from falling off completely, so that the creep and transferred polytetrafluoroethylene can be firmly attached to the surface of the liner. Meanwhile, the high-tensile-strength fibers are used as the weft yarns, so that the bearing strength of the liner in operation is effectively improved, and the liner is ensured not to deform easily. The lining pad made of the polytetrafluoroethylene fibers and other high-tensile-strength fibers has the effects of temperature resistance and pressure resistance compared with rubber materials, the dry friction coefficient is reduced by 50% compared with metal materials, the service life of the knuckle bearing is effectively prolonged, and the wear rate is reduced.
Furthermore, the fiber fineness of the warp is 200-500D, and the fiber fineness of the weft is 200-500D. Preferably, the fiber fineness of the warp is 400-500D, and the fiber fineness of the weft is 400-500D.
Furthermore, the thickness of the gasket is 1.5-2.5 mm. Preferably, the thickness of the pad is 2 mm.
Furthermore, the weaving density of the warp threads is 8-12 threads/cm, and the weaving density of the weft threads is 8-12 threads/cm. Preferably, the weaving density of the warp threads is 10-12 threads/cm, and the weaving density of the weft threads is 10-12 threads/cm. According to the fiber fineness of the warp and the weft, 400D is used for representing the weight of a 9000m long fiber to be 400g, the larger the number is, the thicker the fiber is, and the smaller the number is, the thinner the fiber is; the density of the polytetrafluoroethylene is 2.14-2.2 g/cm3The 400D polytetrafluoroethylene fiber was found to have a particle size of about 0.15mm by the density, volume, and cross-sectional area, and the warp and weft yarn weaving density revealed that gaps were formed between the warp and weft yarns, and the gaps were used for subsequent resin material filling, which not only served as a solidified spacer, but also made the spacer and the bearing body to be fixed and bonded together by the resin material.
The invention also provides a preparation method of the thrust knuckle bearing, which comprises the following steps:
laying the pre-woven liner on the surface of a mould, and fixing the glass fiber on a winding machine;
sequentially adding epoxy resin, a curing agent and an accelerator into a stirring kettle according to a preset proportion, starting stirring, obtaining a resin raw material after the raw material is uniform, uniformly coating a part of the resin raw material on one side of the liner, which is far away from a mould, and adding the rest of the resin raw material into a glue passing groove in a winding machine for later use;
the glass fiber is wound on one side of the gasket, which is far away from the die, after sequentially passing through the glue groove and the glue scraping wheel by using a winding machine to serve as a bearing main body;
and (3) curing, surface processing and demolding the bearing main body obtained after winding to obtain the joint bearing.
Compared with the prior art, the invention has the following beneficial effects:
the density of the joint bearing is less than that of the joint bearing made of metal materials, the specific strength of the joint bearing is greater than that of the joint bearing made of metal materials, the manufacturing cost of the bearing is effectively reduced, and the weight of the bearing is effectively reduced. The liner is bonded on the side wall of the inner ring of the knuckle bearing, so that the dry friction coefficient of the knuckle bearing provided by the embodiment of the invention is reduced by 50% compared with that of a metal bearing, the service life of the knuckle bearing is effectively prolonged, and the wear rate is reduced.
Detailed Description
The present invention will be described in further detail below by way of examples, but the embodiments of the present invention are not limited thereto.
The detection item and the detection method in the embodiment comprise the following steps:
glass fiber freeness: visualization
Density: electronic solid densimeter MH-300A model
Tensile strength: tensile strength testing machine WJ-L-2T model
Specific strength: the tensile strength/density of the composite material,
dry coefficient of friction: sliding bearing tribology performance testing machine MPB-20 model
The specific materials of the components in this example are as follows:
epoxy resin: nantong star synthetic materials, type E-51, epoxy equivalent is 184-195 eq/100 g;
curing agent: methyltetrahydrophthalic anhydride, New remote chemical Co., Ltd, Anhui province, Ltd
Accelerator (b): 2,4, 6-tris (dimethylaminomethyl) phenol, national drug group chemical reagents, Inc
Glass fiber: nongcheng glass fiber No. 4000 from Jiujiang east China company No. 4000, alkali-free glass fiber
Warp yarn: shandong Senrong, Polytetrafluoroethylene filament fiber, 400D
Weft: hangzhou Hongxuan, aramid 1313, 400D
Examples 1 to 5
According to the raw material components and contents listed in table 1, the preparation method is as follows:
step 01, laying the pre-woven liner on the surface of a mold, and fixing the glass fiber on a winding machine; wherein, the weaving density of the warp and the weft in the pre-woven pad is 10 pieces/cm, and the thickness of the pad is 2 mm.
Step 02, sequentially adding epoxy resin, a curing agent and an accelerator into a stirring kettle according to a preset proportion, starting stirring, obtaining a resin raw material after the mixture is uniform, uniformly coating a part of the resin raw material on one side of a liner, which is far away from a mold, and adding the rest of the resin raw material into a glue passing groove in a winding machine for later use; wherein, the epoxy resin accounts for 100 parts by weight, the curing agent accounts for 80 parts by weight, and the accelerator accounts for 1 part by weight.
Step 03, winding the glass fiber on one side of the gasket, which is far away from the die, after sequentially passing through a rubber groove and a rubber scraping wheel by using a winding machine to serve as a bearing main body;
and 04, curing, surface processing and demolding the bearing main body obtained by winding in the step 03 to obtain the joint bearing.
TABLE 1
The stainless steel, the carbon steel and the bearing steel in the comparative example are commercially available, specifically, the stainless steel in the comparative example 1 is stainless steel 316 of special steel ltd without tin, the carbon steel in the comparative example 2 is carbon steel Q235 of spring metal product ltd without tin, and the bearing steel in the comparative example 3 is bearing steel GCr15 of jiaping steel technology (nibo) ltd.
In examples 1 to 5, the freeness, density and specific strength of the glass fiber were measured as test data on the bearing body, and the pass standard of the freeness of the glass fiber was 30Mpa mechanical load, and the dry friction coefficient was measured as test data on the pad.
Therefore, the density and the specific strength of the embodiment 1 are the highest in the embodiments 1-5, but the mass fraction of the resin raw material is less than 25%, so that the glass fiber cannot be fixed in the operation of the bearing body, the glass fiber has a free movement phenomenon, and the service life of the bearing body is influenced; example 5 the lowest density and specific strength of example 5 among examples 1-5 resulted from the decrease in the glass fiber mass fraction with increasing mass fraction of the resin raw material; however, the density of the knuckle bearings made of the polymer materials in examples 1-5 is lower than that of the knuckle bearings made of the metal materials, and the specific strength of the knuckle bearings made of the polymer materials in comparative examples 1-3 is higher than that of the knuckle bearings made of the metal materials in comparative examples 1-3, so that the manufacturing cost of the bearings is effectively reduced, and the weight of the bearings is effectively reduced. The liner is bonded on the side wall of the inner ring of the knuckle bearing, so that the dry friction coefficient of the knuckle bearing provided by the embodiment of the invention is reduced by 50% compared with that of a metal bearing, the service life of the knuckle bearing is effectively prolonged, and the wear rate is reduced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A thrust knuckle bearing, comprising a bearing body and a pad;
the bearing main body comprises the following components in parts by weight, calculated by taking the total weight as 100 parts by weight:
25-45 parts of resin raw material, including epoxy resin, curing agent and accelerator, wherein the weight ratio of the epoxy resin to the curing agent to the accelerator is 100: (70-110) < 0.5-1.5 >;
75-55 parts by weight of glass fiber;
the liner is made by weaving warps and wefts, and is bonded to the side wall of the inner ring of the bearing main body through the resin raw material.
2. The thrust knuckle bearing according to claim 1, wherein the epoxy resin has an epoxy equivalent of 179 to 195eq/100 g;
the viscosity of the epoxy resin is 5000-16000 mPa.s at 25 ℃.
3. The thrust knuckle bearing of claim 1, wherein the glass fibers are selected from one or more of C-glass fibers, E-glass fibers, S-glass fibers.
4. The thrust knuckle bearing of claim 1, wherein the curing agent is selected from one or more of hexahydrophthalic anhydride, tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methylhexahydrophthalic anhydride, methylnadic anhydride; the accelerant is one or more selected from dimethylaniline, 2,4, 6-tris (dimethylaminomethyl) phenol and imidazoles.
5. The thrust knuckle bearing of claim 1, wherein said warp threads are polytetrafluoroethylene fibers; the weft is selected from one or more of aramid fiber, polyester fiber, glass fiber, carbon fiber, ultra-high molecular weight polyethylene fiber and polyamide fiber.
6. The thrust spherical plain bearing according to claim 1, wherein the warp has a fiber fineness of 200 to 500D, and the weft has a fiber fineness of 200 to 500D.
7. The thrust knuckle bearing of claim 1, wherein the pad has a thickness of 1.5 to 2.5 mm.
8. The thrust spherical plain bearing according to claim 1, wherein the warp threads are woven at a density of 8 to 12 threads/cm and the weft threads are woven at a density of 8 to 12 threads/cm.
9. The thrust knuckle bearing of claim 1, wherein said bearing body comprises the following components, based on 100 parts by weight total:
25-40 parts of resin raw material, including epoxy resin, curing agent and accelerator, wherein the weight ratio of the epoxy resin to the curing agent to the accelerator is 100: (80-110): 1-1.5);
75-60 parts by weight of glass fiber.
10. The preparation method of the thrust knuckle bearing is characterized by comprising the following steps of:
laying the pre-woven liner on the surface of a mould, and fixing the glass fiber on a winding machine;
sequentially adding epoxy resin, a curing agent and an accelerator into a stirring kettle according to a preset proportion, starting stirring, obtaining a resin raw material after the raw material is uniform, uniformly coating a part of the resin raw material on one side of the liner, which is far away from a mould, and adding the rest of the resin raw material into a glue passing groove in a winding machine for later use;
the glass fiber is wound on one side of the gasket, which is far away from the die, after sequentially passing through the glue groove and the glue scraping wheel by using a winding machine to serve as a bearing main body;
and (3) curing, surface processing and demolding the bearing main body obtained after winding to obtain the joint bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111650476.6A CN114085493A (en) | 2021-12-30 | 2021-12-30 | Thrust knuckle bearing and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111650476.6A CN114085493A (en) | 2021-12-30 | 2021-12-30 | Thrust knuckle bearing and preparation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE29092E (en) * | 1971-06-29 | 1976-12-28 | Dow Corning Corporation | Self-lubricating bearings and other machine elements and a process for their manufacture |
| CH613467A5 (en) * | 1975-01-24 | 1979-09-28 | Le Metallichesky Z Im Xxii Sie | Substance mixture for antifriction materials |
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| CN113062115A (en) * | 2021-04-09 | 2021-07-02 | 中国科学院兰州化学物理研究所 | Preparation method of shape memory self-lubricating liner material and friction reduction method of spherical surface in spherical support fixing shell |
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| USRE29092E (en) * | 1971-06-29 | 1976-12-28 | Dow Corning Corporation | Self-lubricating bearings and other machine elements and a process for their manufacture |
| CH613467A5 (en) * | 1975-01-24 | 1979-09-28 | Le Metallichesky Z Im Xxii Sie | Substance mixture for antifriction materials |
| DE102005036690A1 (en) * | 2005-08-04 | 2007-02-08 | Federal-Mogul Deva Gmbh | Composite material consists of a glass fibre reinforced epoxy resin carrier layer, and a gliding layer on top |
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| US20160160920A1 (en) * | 2013-07-31 | 2016-06-09 | Minebea Co., Ltd. | Thermosetting resin composition, sliding member and method for producing sliding member |
| CN106398121A (en) * | 2016-09-21 | 2017-02-15 | 哈尔滨工业大学 | Preparation method of polytetrafluoroethylene fiber woven self-lubricating material |
| WO2018171702A1 (en) * | 2017-03-24 | 2018-09-27 | 东丽纤维研究所（中国）有限公司 | Self-lubricated ribbon fabric, wide fabric, cylindrical fabric made therefrom and usage thereof |
| CN108962423A (en) * | 2018-07-04 | 2018-12-07 | 凤凰电力有限公司 | Carbon fiber complex core and its manufacturing method for cable |
| CN111844968A (en) * | 2020-07-09 | 2020-10-30 | 中国科学院兰州化学物理研究所 | Preparation method of polyimide fiber/polytetrafluoroethylene fiber self-lubricating fabric liner material |
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