CN108953380B - Antifriction bearing and preparation method thereof - Google Patents
Antifriction bearing and preparation method thereof Download PDFInfo
- Publication number
- CN108953380B CN108953380B CN201811019975.3A CN201811019975A CN108953380B CN 108953380 B CN108953380 B CN 108953380B CN 201811019975 A CN201811019975 A CN 201811019975A CN 108953380 B CN108953380 B CN 108953380B
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- CN
- China
- Prior art keywords
- blind hole
- lubricant
- antifriction bearing
- manufacturing
- blind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000000314 lubricant Substances 0.000 claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000005260 corrosion Methods 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
An antifriction bearing and a preparation method thereof relate to the technical field of bearings, and the antifriction bearing structure is as follows: the novel plastic composite material comprises a matrix and a solid lubricant, wherein the matrix is a hollow cylinder, the hollow cylinder is formed by rolling a plate, a blind hole is radially formed in the inner wall of the matrix, the solid lubricant is arranged in the blind hole, and the bottom area of the blind hole is larger than the opening area. According to the invention, a blind hole is formed in one side of a plate used for a substrate, then a fixed lubricant is arranged in the blind hole, one side of the plate with the blind hole is rolled into the inner wall of a bearing, and the lubricant is fixed through deformation of the substrate plate; when the blind hole is rolled, the inner wall material is deformed, the opening part of the blind hole is extruded, and the area of the opening part is smaller than the area before deformation; the outer wall material can be stretched, and the bottom of the blind hole can also be stretched, so that the bottom area of the blind hole is larger than the opening area, the lubricant is firmly fixed in the blind hole, and the bearing performance is more stable.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to an antifriction bearing and a preparation method thereof.
Background
The bearing is an important part in modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the friction coefficient during its movement and ensure its rotation precision, so that it is necessary for the bearing to have good tribological properties and strength meeting the working conditions.
The embedded bearing is an antifriction bearing, in order to improve the tribological properties of the bearing. The embedded bearing is embedded with solid lubricant on the metal matrix, which breaks through the limitation of the common bearing that depends on oil film lubrication. In the use process, the solid lubricant is rubbed with the shaft through friction heat, the metal matrix mainly meets the strength requirement, and the solid lubricant ensures that the bearing has good lubricating performance.
The combination of the solid lubricant and the matrix is generally carried out in two ways, one is in a bonding way, namely, the solid lubricant is bonded into the embedded holes of the matrix; one is to use an interference press-in method. In the bonding mode, friction heat is generated in the working process of the bearing, the bonding agent is possibly invalid, the bonding force is not firm, the service performance is affected, and if the parts are disassembled, the solid lubricant falls off and is not suitable for assembly; by adopting the win-win press-in, the solid lubricant tends to be pulled out, and the use performance is affected by the existence of stress.
Disclosure of Invention
In order to solve the problems in the background technology, the application provides an antifriction bearing and a preparation method thereof. The technical scheme of the invention is as follows:
the antifriction bearing comprises a substrate and a lubricant, wherein the lubricant is a solid lubricant, the substrate is a hollow cylinder, a blind hole is radially formed in the inner wall of the substrate, the lubricant is arranged in the blind hole, the bottom area of the blind hole is larger than the opening area, and interference fit and clearance fit exist between the lubricant and the blind hole.
Preferably, the hollow cylinder is rolled from a sheet material.
Preferably, the material of the plate is iron, copper or aluminum.
Preferably, the lubricant is made of graphite beans or modified PTFE.
The preparation method of the antifriction bearing comprises the following steps:
s10, preparing a matrix: preparing a plate for a matrix;
s20, manufacturing blind holes: a blind hole is processed on one side of the plate;
s30, cleaning scraps: removing scraps in the blind holes;
s40, filling lubricant: preparing a self-lubricating material, filling the self-lubricating material into the blind holes, and preparing a self-lubricating plate by clearance fit between the blind holes and the lubricant;
s50, rolling the shaft sleeve: rolling the self-lubricating plate into a bearing blank;
s60, processing a finished product: and processing the bearing blank into a bearing product.
Further, the step S20 and the step S30 further comprise,
s21, manufacturing screw threads: and manufacturing a spiral groove in the blind hole, wherein the spiral groove is a thread.
Further, between the step S30 and the step S40, further includes:
s31, corrosion blind holes: the blind holes are filled with corrosive liquid, the liquid level of the corrosive liquid is lower than the height of the blind holes, and the blind holes are corroded by the corrosive liquid;
s32, cleaning blind holes: and after the corrosion liquid is used for corroding the blind holes, cleaning the corrosion liquid in the blind holes.
The antifriction bearing does not need an adhesive in the manufacturing process, and can eliminate the influence of the adhesive on the bearing performance, such as the influence of the adhesive on the bearing performance, and the influence of poor bonding of the adhesive on the tribological performance in the use process; the combination of the lubricant and the matrix is not an interference press-in mode. According to the antifriction bearing, when the lubricant is filled into the blind hole, the lubricant is not required to be pressed into the blind hole in an interference manner, and the lubricant and the blind hole are in clearance fit, so that gas in the blind hole can be smoothly discharged, the bottom of the blind hole is communicated with atmospheric pressure, and pressurized air is not formed at the bottom of the blind hole; when the shaft sleeve is rolled, the lubricant is fixed by utilizing the deformation of the matrix material, specifically, the lubricant is arranged at one side of the blind hole when the shaft sleeve is rolled, and the bearing inner wall is rolled; deformation of the base material can cause deformation of the blind holes, the opening parts of the blind holes are extruded, and the area of the opening parts is smaller than the area before deformation; the outer wall material is stretched, and the bottom of the blind hole is stretched, so that the area of the bottom of the blind hole is larger than the area of the opening; the deformation of blind hole will extrude the lubricant, can block the lubricant in the blind hole, has interference fit and clearance fit between lubricant and the blind hole, interference fit part, can communicate the bottom and the atmosphere intercommunication that make the blind hole, interference fit's part, the lubricant can firmly be fixed in the blind hole.
Furthermore, in the antifriction bearing, in the manufacturing process, the blind holes are filled with the corrosive liquid, the liquid level of the corrosive liquid is lower than the height of the blind holes, and the blind holes are subjected to blind holes by the corrosive liquid; thus, the bottom area of the blind hole can be formed to be larger than the opening area before rolling.
Still further, antifriction bearing of this application, through being provided with the helicla flute in the blind hole, the line of helicla flute is convenient for corrode, is of value to the intercommunication of atmospheric pressure, the helicla flute be the screw thread.
Drawings
FIG. 1 is a schematic illustration of the structure of an antifriction bearing of the present invention;
figure 2 is an expanded view of the inner wall of the antifriction bearing of the present invention.
Detailed Description
The antifriction bearing, as shown in fig. 1 and 2, comprises a substrate 1 and a lubricant, wherein the lubricant is a solid lubricant, the substrate 1 is a hollow cylinder, a blind hole 2 is radially formed in the inner wall of the substrate 1, the lubricant is arranged in the blind hole 2, the bottom area of the blind hole 2 is larger than the opening area, and interference fit and clearance fit exist between the lubricant and the blind hole 2.
The plate material in the embodiment of the invention is made of iron, copper or aluminum. The lubricant is prepared from graphite particles or modified PTFE.
The antifriction bearing of the invention comprises the following steps,
s10, preparing a matrix: preparing a plate for the substrate 1;
s20, manufacturing blind holes: a blind hole 2 is processed on one side of the plate;
s30, cleaning scraps: removing scraps in the blind holes 2;
s40, filling lubricant: preparing self-lubricating materials and filling the self-lubricating materials into the blind holes 2, wherein the blind holes 2 are in clearance fit with the lubricant, so as to prepare a self-lubricating plate;
s50, rolling the shaft sleeve: rolling the self-lubricating plate into a bearing blank;
s60, processing a finished product: and processing the bearing blank into a bearing product.
It can be understood that the embodiment of the invention uses the method that when the substrate 1 is rolled, the lubricant is fixed through the deformation of the material of the substrate 1, namely, the blind holes 2 are arranged on one side of the plate used for manufacturing the substrate 1, and then one side with the blind holes 2 is rolled into the inner wall of the bearing; when the blind hole is rolled, the inner wall material is deformed, the opening part of the blind hole 2 is extruded, and the area of the opening part is smaller than the area before deformation; the outer wall material will be stretched and the bottom of the blind hole 2 will be stretched, so that a larger bottom area of the blind hole 2 than the opening area will be created, and the lubricant will be firmly fixed in the blind hole 2. The antifriction bearing of the embodiment of the invention does not need to be pressed in by the lubricant in an interference way, so that the gas in the blind hole can be smoothly discharged, the bottom of the blind hole is communicated with the atmospheric pressure, and the bottom of the blind hole is not provided with pressurized air.
In practice, the steps S20 and S30 further comprise,
s21, manufacturing screw threads: a spiral groove, i.e. a thread structure, is made in the blind hole 2, said thread being a fine-pitch thread.
It will be appreciated that by making the threads in the blind hole 2, on the one hand the threads are easy to erode and on the other hand the thread pattern is beneficial for the communication of air pressure.
In implementation, the steps S30 and S40 further include:
s31, corrosion blind holes: the blind holes 2 are filled with corrosive liquid, the liquid level of the corrosive liquid is lower than the height of the blind holes 2, and the blind holes 2 are corroded by the corrosive liquid;
s32, cleaning blind holes: and after the corrosion of the corrosion liquid to the blind holes 2 is finished, cleaning the corrosion liquid in the blind holes 2.
It can be understood that the blind holes 2 are corroded by the corrosive liquid filled in the blind holes 2, and the liquid level of the corrosive liquid is lower than the height of the blind holes 2; thus, the bottom area of the blind hole can be formed to be larger than the opening area before rolling.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The preparation method of the antifriction bearing comprises a matrix (1) and a lubricant, wherein the lubricant is a solid lubricant, and is characterized in that: the base body (1) is a hollow cylinder, a blind hole (2) is radially formed in the inner wall of the base body (1), and the lubricant is arranged in the blind hole (2);
the preparation method comprises the following steps:
s10, manufacturing a plate used for the substrate (1);
s20, processing a blind hole on one side of the plate;
s30, removing scraps in the blind holes (2);
s40, preparing self-lubricating materials, filling the self-lubricating materials into the blind holes (2), and preparing self-lubricating plates by clearance fit between the blind holes (2) and the lubricant;
s50, rolling the self-lubricating plate into an antifriction bearing blank; the inner wall material is deformed in the rolling process of the self-lubricating plate, the opening part of the blind hole (2) is extruded, and the area of the opening part is smaller than the area before deformation; the outer wall material is stretched, the bottom of the blind hole (2) is stretched, the bottom area of the rolled blind hole (2) is larger than the opening area, the lubricant is in interference fit with the opening of the blind hole (2), and the lubricant is in clearance fit with the bottom of the blind hole (2);
s60, processing the antifriction bearing blank into a antifriction bearing finished product.
2. A method of manufacturing an antifriction bearing in accordance with claim 1 wherein: the plate is made of one of iron, copper and aluminum.
3. A method of manufacturing an antifriction bearing in accordance with claim 1 wherein: the lubricant is prepared from graphite particles or modified PTFE.
4. A method of manufacturing an antifriction bearing in accordance with claim 1 wherein: the steps S20 and S30 further include: s21, manufacturing a spiral groove in the blind hole.
5. The method for manufacturing the antifriction bearing according to claim 4 characterized in that: the spiral groove is a thread.
6. A method of manufacturing an antifriction bearing in accordance with claim 1 wherein: the steps S30 and S40 further include:
s31, filling corrosion liquid in the blind hole (2), wherein the liquid level of the corrosion liquid is lower than the height of the blind hole (2), and the corrosion liquid corrodes the blind hole (2);
and S32, after the corrosion of the blind hole (2) is finished by the corrosive liquid, cleaning the corrosive liquid in the blind hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811019975.3A CN108953380B (en) | 2018-09-03 | 2018-09-03 | Antifriction bearing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811019975.3A CN108953380B (en) | 2018-09-03 | 2018-09-03 | Antifriction bearing and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953380A CN108953380A (en) | 2018-12-07 |
| CN108953380B true CN108953380B (en) | 2024-04-09 |
Family
ID=64475645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811019975.3A Active CN108953380B (en) | 2018-09-03 | 2018-09-03 | Antifriction bearing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953380B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795074B (en) * | 2020-06-29 | 2021-11-23 | 华亿轴承科技（江苏）有限公司 | HYB-650 copper-based inlaid solid lubricating bearing and manufacturing process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7804919U1 (en) * | 1977-02-19 | 1978-06-08 | Colne | GRIP DEVICE |
| CN2583431Y (en) * | 2002-09-12 | 2003-10-29 | 武汉辉煌粉末冶金有限责任公司 | Self-lubricating sliding bearing |
| CN201215139Y (en) * | 2008-06-06 | 2009-04-01 | 大连精一轴承有限公司 | Blind hole enchased bearing with solid lubricant |
| CN201396372Y (en) * | 2009-03-17 | 2010-02-03 | 宜昌金三环自润滑轴承有限公司 | Thin-wall embedded self-lubricating bearing |
| CN102330745A (en) * | 2011-07-15 | 2012-01-25 | 栾清杨 | Inlaid self-lubricating bearing |
| CN102330746A (en) * | 2011-07-19 | 2012-01-25 | 栾清杨 | Rolling bearing |
| CN203348322U (en) * | 2013-06-09 | 2013-12-18 | 诸暨市震达轴承有限公司 | Improved self-lubricating bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004308779A (en) * | 2003-04-07 | 2004-11-04 | Daido Metal Co Ltd | Sliding member and its manufacturing method |
-
2018
- 2018-09-03 CN CN201811019975.3A patent/CN108953380B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7804919U1 (en) * | 1977-02-19 | 1978-06-08 | Colne | GRIP DEVICE |
| US4221419A (en) * | 1977-02-19 | 1980-09-09 | Keith Riley | Gripping devices |
| CN2583431Y (en) * | 2002-09-12 | 2003-10-29 | 武汉辉煌粉末冶金有限责任公司 | Self-lubricating sliding bearing |
| CN201215139Y (en) * | 2008-06-06 | 2009-04-01 | 大连精一轴承有限公司 | Blind hole enchased bearing with solid lubricant |
| CN201396372Y (en) * | 2009-03-17 | 2010-02-03 | 宜昌金三环自润滑轴承有限公司 | Thin-wall embedded self-lubricating bearing |
| CN102330745A (en) * | 2011-07-15 | 2012-01-25 | 栾清杨 | Inlaid self-lubricating bearing |
| CN102330746A (en) * | 2011-07-19 | 2012-01-25 | 栾清杨 | Rolling bearing |
| CN203348322U (en) * | 2013-06-09 | 2013-12-18 | 诸暨市震达轴承有限公司 | Improved self-lubricating bearing |
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| Publication number | Publication date |
|---|---|
| CN108953380A (en) | 2018-12-07 |
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