CN1296633C - Self-compensation lubricating sliding bearing - Google Patents
Self-compensation lubricating sliding bearing Download PDFInfo
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- CN1296633C CN1296633C CNB2004100131714A CN200410013171A CN1296633C CN 1296633 C CN1296633 C CN 1296633C CN B2004100131714 A CNB2004100131714 A CN B2004100131714A CN 200410013171 A CN200410013171 A CN 200410013171A CN 1296633 C CN1296633 C CN 1296633C
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- bearing
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- sintering
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- sleeve
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Abstract
The present invention relates to a self-compensation lubricating sliding bearing which comprises a bearing seat (1) and a bearing lining (5), wherein the bearing seat (1) is sheathed on the bearing lining (5). A multi-hole wear-resistance sintering sleeve (2) is arranged between the bearing seat (1) and the bearing lining (5); an oil storage tank is arranged on the sleeve wall of the multi-hole wear-resistance sintering sleeve (2); high-temperature lubricating grease (3) is filled in the oil storage tank. Because the multi-hole wear-resistance sintering sleeve (2) is arranged between the bearing seat (1) and the bearing lining (5) of the bearing of the present invention and the oil storage tank is arranged on the sleeve wall of the multi-hole wear-resistance sintering sleeve and the high-temperature lubricating grease (3) is filled in the oil storage tank, friction heat in use makes the lubricating grease after diluted pass through a micro-hole lubricating friction interface in the multi-hole wear-resistance sintering sleeve. Thus, not only the bearing has very low friction coefficient and high PV value, but also the lubricating self-compensation problem of the bearing is solved, and the service life of the bearing is enhanced. Therefore, the bearing is especially suitable for working condition environment which needs long-term continuous operation and has high environment temperature and is difficult to realize oiling maintenance.
Description
Technical field
The present invention relates to bearing, particularly self-lubricating plain bearing.
Background technique
Powder metallurgy oil-impregnated bearing is in its preparation process, lubricant oil is immersed in the sintering body, during use, bearing can realize selflubricating, but this bearing can't be realized the lubricant oil self compensation under the frictional heat effect, lubricant oil is after volatilization under the frictional heat effect and exhausting, and bearing will lose efficacy rapidly.In order to realize the compensation of lubricant oil, existing mode is mainly two kinds: hole in axle sleeve (1), adopts outer oil supply system; (2) offer oil storage tank in bearing support, the placement asphalt felt progressively immerses into it and compensates in bearing.The former needs isolated plant, is difficult to realize for difficult some supporting, and is not suitable for high-altitude application; Though latter's applicability is wide, because being based on capillary, the immersion of the oil in the asphalt felt inhales the rainbow principle, and therefore, what the oil in the felt adopted is liquid oils, and serviceability temperature is restricted.Along with the development of engineering, the compensation way of these two kinds of lubricant oil can not satisfy the usage requirement of some occasion to bearing, as: can not satisfy of the requirement of the used feeding conveyer of smelting process to Idler bearing.In smelting process, the load height that Idler bearing bore of feeding conveyer, has certain ambient temperature, be operated in the more abominable operating mode of dust and environment, and mostly be the transportation of long distance and high-altitude, therefore, realization has very big difficulty and Security hidden danger to the maintenance of the lubricant oil compensation of Idler bearing, and do not realize that it lubricates compensation maintenance, the then easy early failue of bearing; The bearing that lost efficacy has limited rotating freely of carrying roller and has made belt and carrying roller surface produce slide relative; This has not only quickened the wearing and tearing of carrying roller, and has increased the resistance to motion between conveyor belt and carrying roller, makes the rotational noise of transport airplane become big, the easy damage of conveyer belt.
Summary of the invention
Technical problem to be solved by this invention is: a kind of self compensation lubrication sliding bearing that can compensate lubricant oil automatically to bearing is provided.
The present invention solves the problems of the technologies described above the technological scheme that is adopted:
It comprises bearing support and bearing sleeve, and bearing sleeve is provided with the wear-resisting sintering cover of porous between bearing support and the bearing sleeve on bearing sleeve, has oil storage tank on the jacket wall of the wear-resisting sintering cover of porous, is filled with high temperature grease in the oil storage tank.
The wear-resisting sintering cover of porous is installed in the bearing support with drive fit, and bearing sleeve is to be installed in movingly in the wear-resisting sintering cover of porous; Oil storage tank leaves on the outer wall of the wear-resisting sintering cover of porous.
Its two ends respectively are respectively equipped with the thrust position, and the thrust position at two ends is separately positioned on the end face of bearing support and bearing sleeve; Be provided with wear-resistant gasket between the thrust position of wear-resisting sintering cover end face of porous and bearing sleeve end face.
Wear-resisting sintering cover of porous and wear-resistant gasket are Fe-Ni-Cu base powder metallurgy material sintering body, and after sintering body was mixed by Fe, Ni, Cu, pore creating material, solid lubricant, sintering formed under 1020-1120 ℃ of vacuum after the cold forming base is shaped; The weight percentage proportioning of above-mentioned each component is:
Fe 50-70%, Ni 20-30%, Cu 5-10%, pore creating material 2-8%, surplus is a solid lubricant.
The porosity ratio of sintering body is 15-30%.
The titre of high temperature grease is higher than the lubricant oil serviceability temperature that sintering body floods in preparation process.
Owing to be provided with the wear-resisting sintering cover of porous between the bearing support of bearing of the present invention and the bearing sleeve, have oil storage tank on the wall of the wear-resisting sintering cover of porous, be filled with high temperature grease in the oil storage tank, frictional heat during use makes lubricating grease dilution back by the micropore lubrication friction interface in the wear-resisting sintering cover of porous, make bearing not only have low-down friction factor (f≤0.10) and higher PV (load * speed) value (〉=6.5MPam/s); And having solved bearing lubrication self compensation problem, in the working life of having improved bearing, therefore, this bearing is specially adapted to work continuously, to have than high ambient temperature for a long time and is difficult to realize refuel the work condition environment of safeguarding.
The present invention has the main distinction with existing powder metallurgy oil-impregnated bearing to be:
The mode that realizes selflubricating among the present invention is: frictional heat provides driving force for realizing the Boundary lubrication self compensation in volatilization Boundary lubrication oil; By the transmission of heat of sintering body, realize lubricating grease fusion that it is inner and spread to frictional interface, thereby realize selflubricating and self compensation function by the micropore in the sintering body.
Description of drawings
Fig. 1 is the structure sectional view of the embodiment of the invention
Embodiment
The embodiment of the invention as shown in Figure 1, it comprises bearing support 1 and bearing sleeve 5, bearing support 1 is enclosed within on the bearing sleeve 5, be provided with the wear-resisting sintering cover 2 of porous between bearing support 1 and the bearing sleeve 5, the wear-resisting sintering of porous cover 2 is installed in the bearing support 1 with drive fit, and bearing sleeve 5 is to be installed in movingly in the wear-resisting sintering cover 2 of porous; Have oil storage tank on the outer wall of the wear-resisting sintering cover 2 of porous, be filled with high temperature grease 3 in the oil storage tank.The two ends of this bearing respectively are respectively equipped with thrust position 6,7, and the thrust position 6,7 at two ends is separately positioned on the end face of bearing support 1 and bearing sleeve 5.Be provided with wear-resistant gasket 4 between the thrust position 7 of cover 2 end faces and bearing sleeve 5 end faces in porous is wear-resisting, can produce differential slip between cover 2 end faces in wear-resistant gasket 4 and porous are wear-resisting, the slide relative that makes bearing housing and bearing sleeve end face has improved the life-span of bearing when satisfying the bearing bearing axial pushing force.
Bearing sleeve 5 is prepared from through heat treatment with the GCr15 material.Bearing support 1 is prepared from by the heat treatment of 45# steel.Wear-resisting sintering cover 2 of porous and wear-resistant gasket 4 are Fe-Ni-Cu base powder metallurgy material sintering body, and sintering body is by Fe, Ni, Cu, pore creating material (copper chloride or carbonic acid ammonia), solid lubricant (MoS
2) after the mixing, sintering forms under 1020-1150 ℃ of vacuum after the cold forming base is shaped; The weight percentage proportioning of above-mentioned each component is: Fe 50-70%, and Ni 20-30%, Cu 5-10%, pore creating material 2-8%, surplus is a solid lubricant; The porosity ratio of sintering body is 15-30%.
The present invention can improve the serviceability temperature and the Sliding velocity scope of bearing by the titre that improves lubricating grease, to satisfy the requirement of different operating modes to bearing use temp.The titre of the high temperature grease 3 of the embodiment of the invention is higher than the lubricant oil serviceability temperature that sintering body floods in preparation process.
Because the self lubricating material in the bearing inner sleeve has the Ni-Cu material of certain content, therefore, bearing is when work, and the Ni-Cu element that is better than the Fe thermal conductivity has increased the conductivity of sintering body, and the frictional heat that makes the frictional interface generation is easily to the outer surface transmission; And the lipid lubricant oil on thermosol bearing housing surface; Lubricant oil spreads to friction surface by the micropore in the sintering body under the heat gradient effect again; Micropore in preparation process centre bearer bush sintering body is controlled by pore creating material, and therefore, Ni-Cu component in the bearing sintering body and porosity ratio have been controlled the lubricated self compensation speed of bearing in friction process.
Claims (6)
1, self compensation lubrication sliding bearing, it comprises bearing support (1) and bearing sleeve (5), bearing support (1) is enclosed within on the bearing sleeve (5), it is characterized in that: be provided with the wear-resisting sintering cover of porous (2) between bearing support (1) and the bearing sleeve (5), have oil storage tank on the jacket wall of the wear-resisting sintering cover of porous (2), be filled with high temperature grease (3) in the oil storage tank.
2, self compensation lubrication sliding bearing as claimed in claim 1 is characterized in that: the wear-resisting sintering cover of porous (2) is installed in the bearing support (1) with drive fit, and bearing sleeve (5) is to be installed in movingly in the wear-resisting sintering cover of porous (2); Oil storage tank leaves on the outer wall of the wear-resisting sintering cover of porous (2).
3, self compensation lubrication sliding bearing as claimed in claim 2 is characterized in that: its two ends respectively are respectively equipped with thrust position (6,7), and the thrust position at two ends (6,7) are separately positioned on the end face of bearing support (1) and bearing sleeve (5); Be provided with wear-resistant gasket (4) between the thrust position (7) of wear-resisting sintering cover (2) end face of porous and bearing sleeve (5) end face.
4, the lubricated oil-impregnated bearing of self compensation as claimed in claim 3, it is characterized in that: wear-resisting sintering cover of porous (2) and wear-resistant gasket (4) are Fe-Ni-Cu base powder metallurgy material sintering body, after sintering body was mixed by Fe, Ni, Cu, pore creating material, solid lubricant, sintering formed under 1020-1150 ℃ of vacuum after the cold forming base is shaped; The weight percentage proportioning of above-mentioned each component is:
Fe 50-70%, Ni 20-30%, Cu 5-10%, pore creating material 2-8%, surplus is a solid lubricant.
5, self compensation lubrication sliding bearing as claimed in claim 4 is characterized in that: the porosity ratio of sintering body is 15-30%.
6, self compensation lubrication sliding bearing as claimed in claim 4 is characterized in that: the titre of high temperature grease (3) is higher than the lubricant oil serviceability temperature that sintering body floods in preparation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100131714A CN1296633C (en) | 2004-05-17 | 2004-05-17 | Self-compensation lubricating sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100131714A CN1296633C (en) | 2004-05-17 | 2004-05-17 | Self-compensation lubricating sliding bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1580593A CN1580593A (en) | 2005-02-16 |
| CN1296633C true CN1296633C (en) | 2007-01-24 |
Family
ID=34581672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100131714A Expired - Fee Related CN1296633C (en) | 2004-05-17 | 2004-05-17 | Self-compensation lubricating sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1296633C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305243B (en) * | 2011-08-31 | 2013-02-13 | 中国人民解放军国防科学技术大学 | Self-compensating fluid hydrostatic bearing |
| CN103569824A (en) * | 2013-07-24 | 2014-02-12 | 吴江骏达电梯部件有限公司 | Elevator guide rail with gradient microporous structure |
| CN104343816B (en) * | 2013-07-29 | 2017-07-21 | 联想(北京)有限公司 | A kind of bearing and a kind of rotational structure |
| CN104989729A (en) * | 2015-07-24 | 2015-10-21 | 南京信息工程大学 | Bearing material with self-lubricating property and preparation method thereof |
| CN105485307A (en) * | 2015-12-25 | 2016-04-13 | 吴忠仪表有限责任公司 | Transmission structure using bearing bush for replacing bearing |
| CN106763196A (en) * | 2016-11-30 | 2017-05-31 | 重庆大学 | A kind of sliding bearing based on bionical diatom shell bilayer micro forming structure |
| CN109557335B (en) * | 2018-11-12 | 2020-09-18 | 中国航天空气动力技术研究院 | Near space anemoscope |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068225Y2 (en) * | 1987-05-29 | 1994-03-02 | 愛三工業株式会社 | Vehicle door lock locking / unlocking device |
| JPH09143638A (en) * | 1995-11-20 | 1997-06-03 | Hitachi Powdered Metals Co Ltd | Ferrous sintered oil retaining bearing and its production |
| CN1169514A (en) * | 1996-06-21 | 1998-01-07 | 三星电机株式会社 | Sintered hydrodynamic oil-contained bearing |
| DE20208318U1 (en) * | 2002-05-28 | 2002-12-19 | Risun Expanse Corp | Oil-impregnated bearing |
| JP2003065323A (en) * | 2001-08-27 | 2003-03-05 | Nippon Densan Corp | Hydrodynamic bearing apparatus and electric motor using the same |
| JP2003294027A (en) * | 2002-04-03 | 2003-10-15 | Nippon Densan Corp | Fluid dynamic bearing, spindle motor, and drive for recording disk |
-
2004
- 2004-05-17 CN CNB2004100131714A patent/CN1296633C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH068225Y2 (en) * | 1987-05-29 | 1994-03-02 | 愛三工業株式会社 | Vehicle door lock locking / unlocking device |
| JPH09143638A (en) * | 1995-11-20 | 1997-06-03 | Hitachi Powdered Metals Co Ltd | Ferrous sintered oil retaining bearing and its production |
| CN1169514A (en) * | 1996-06-21 | 1998-01-07 | 三星电机株式会社 | Sintered hydrodynamic oil-contained bearing |
| JP2003065323A (en) * | 2001-08-27 | 2003-03-05 | Nippon Densan Corp | Hydrodynamic bearing apparatus and electric motor using the same |
| JP2003294027A (en) * | 2002-04-03 | 2003-10-15 | Nippon Densan Corp | Fluid dynamic bearing, spindle motor, and drive for recording disk |
| DE20208318U1 (en) * | 2002-05-28 | 2002-12-19 | Risun Expanse Corp | Oil-impregnated bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1580593A (en) | 2005-02-16 |
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Granted publication date: 20070124 Termination date: 20130517 |