CN102720765B - Liquid lubricating system specially used for high-speed bearing - Google Patents
Liquid lubricating system specially used for high-speed bearing Download PDFInfo
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- CN102720765B CN102720765B CN201110396620.8A CN201110396620A CN102720765B CN 102720765 B CN102720765 B CN 102720765B CN 201110396620 A CN201110396620 A CN 201110396620A CN 102720765 B CN102720765 B CN 102720765B
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- bearing
- rolling element
- inner race
- elasitic layer
- outer ring
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Abstract
The invention discloses a liquid lubricating system specially used for a high-speed bearing. The liquid lubricating system comprises a bearing inner race, rolling elements, an elastic layer, a bearing outer race, an external oil-storage chamber, an internal oil-storage chamber, communication holes and a bearing pedestal. The bearing inner race is arranged at an inner end of a bearing. The rolling elements are arranged between the bearing inner race and the elastic layer. The elastic layer is arranged at outer parts of the rolling elements. The surface of an inner circle of the elastic layer contacts with the rolling elements. The internal oil-storage chamber is arranged between the elastic layer and the bearing outer race. The external oil-storage chamber is arranged at an outer part of the bearing outer race. The communication holes are arranged in the bearing outer race and the elastic layer. The bearing pedestal is arranged at the outermost layer of the bearing. The cambered surface of an inner circle of the bearing pedestal is an outer wall surface of the external oil-storage chamber. The power is produced by vibration of the elastic layer. Through the vibration of the elastic layer, a positive pressure zone and a negative pressure zone are produced in the internal oil-storage chamber and thus a force necessary for driving lubricating oil to flow is provided so that the uniformity and the reliability of lubricating oil distribution are ensured and a bearing lubricating oil supply system is simplified effectively. The liquid lubricating system specially used for a high-speed bearing has wide application prospects in the technical field of lubrication of a bearing used for aviation and aerospace.
Description
Technical field
The present invention relates to a kind of liquid lubrication system of high-speed bearing Special use, belong to the lubrication technical field of space, aviation bearing.
Background technique
More and more higher at aviation field bearing rotating speed, the selection of lubricating system is especially crucial, and good lubricating system must ensure precision and the run stability of whole system.The selection of lubricating system is relevant with the load of bearing, rotating speed, rated temperature-rise and bearing type etc.At present, aviation mainly contains jet lubrication, oil mist lubrication and three kinds of modes of oil-air lubrication with the lubricating system of high-speed bearing.Jet lubrication is to use oil pump direct weighting to spray by nozzle, need to adopt high pressure oil pump and nozzle, not only bearing is produced to very large impact force, and the requirement of strength of component in system is improved and cost increase.Oil mist lubrication is being transported to lubricating point after lubricating oil atomization, the mist of oil forming in atomising device is difficult for producing lubricated required oil film at lubricating point, need to condensation nozzle be installed at lubricating point, make mist of oil after condensation nozzle, form the elaioleucite that drips shape, in order to carry mist of oil must be equipped with a set of air compression system, these additional devices make oil mist system structure complicated, and the fed distance of mist of oil is also restricted simultaneously.Oil-air lubrication structurally changes condensation nozzle into oil and gas distributor than oil mist lubrication, and its cost is improved, and structure is more complicated.
Summary of the invention
1, object: the object of the invention is the liquid lubrication system for a kind of high-speed bearing Special use is provided, it has overcome the deficiencies in the prior art, and it is simple in structure, with low cost, reliable and secure.
2, technological scheme: the present invention discloses a kind of liquid lubrication system of high-speed bearing Special use, it comprises bearing inner race, rolling element, elasitic layer, bearing outer ring, outside shoe cream room, interior reservoir oil pocket, intercommunicating pore and bearing support, position annexation between them is: bearing inner race is positioned at bearing inner end, rolling element is arranged between bearing inner race and elasitic layer, elasitic layer is positioned at rolling element outside, its inner headed face contacts with rolling element, interior reservoir oil pocket is arranged between elasitic layer and bearing outer ring, outside shoe cream room is positioned at the outside of bearing outer ring, intercommunicating pore is distributed on bearing outer ring and elasitic layer, bearing seat is in the outermost surface of bearing, its inner arc surface is the outer wall of outside shoe cream room.
Described bearing inner race is a ring solid of rotation part, and its periphery contacts and provides support with rolling element, is the driving link of this lubricating bearings;
Described rolling element is cylindrical component, is arranged between bearing inner race and elasitic layer, and its Main Function is that the radial effect power that bearing inner race rotation is produced is delivered to elasitic layer;
Described elasitic layer is cylindrical shape thin-walled parts, some radial holes that along the circumferential direction distribute, when bearing inner race rotates the distortion of elasitic layer and vibration make lubricant oil radially aperture flow;
Described bearing outer ring is a rotating body parts, is designed with ring raceway on it, supports for rolling element provides motion;
Described outside shoe cream room is drum, and the internal face of its cylinder is the periphery of bearing outer ring, and outside shoe cream room is used for storing lubricant oil, and its volume size is relevant working life with bearing;
Described interior reservoir oil pocket is lubricant oil is flowed to rolling element cavity volume buffer area by outside shoe cream room, and it is shaped as the ring being interconnected, and in the time that bearing inner race rotates, the pressure in interior reservoir oil pocket changes;
Described intercommunicating pore is the radial hole along the circumferential direction distributing on bearing outer ring and elasitic layer, and this hole is the connecting passage between outside shoe cream room, interior reservoir oil pocket and rolling element cavity volume, and its pore size is relevant with greasy property;
Described bearing support is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring forms outside shoe cream room.
Structure of the present invention and principle analysis: its bearing outside and inside have oil-bearing structure, when bearing inner race high speed rotating, produce radial effect power, this active force is delivered to elasitic layer by rolling element, cause the radial vibration of elasitic layer and produce micro-distortion, along the circumferential direction also there is small slippage simultaneously, these force and deformations are converted into the vibration of radially shear wave and longitudinal harmonic wave along the circumferential direction of elasitic layer, they have overcome the adsorption power of low volatilization high viscosity Lubricants, for the mobile of lubricant oil creates conditions.The radial vibration of elasitic layer makes bearing interior reservoir oil pocket produce corresponding zone of positive pressure and negative pressuren zone, zone of positive pressure makes lubricant oil flow into rolling element cavity volume by the intercommunicating pore that is distributed in elasitic layer, and negative pressuren zone makes lubricant oil unnecessary in rolling element cavity volume return to interior reservoir oil pocket through intercommunicating pore.Due to bearing inner race high speed rotating, drive rolling element high speed scroll, the whirling motion of formation is flowed lubricant oil in rolling element cavity volume, thereby forms elastic lubrication region on the inside and outside surface of contact of rolling element.This has just simplified bearing lubrication system greatly, makes bearing arrangement more flexible.
The radial force producing when bearing inner race High Rotation Speed acts on elasitic layer and makes it that small radial vibration occur, and circumferentially elasitic layer distortion in diverse location place is different, produce different compressions or expansion (amount), thereby form local malleation or negative pressure in the shoe cream room of elasitic layer and bearing outer ring formation.Under the effect of malleation, lubricant oil flows into rolling element cavity volume, makes lubricant oil return to interior reservoir oil pocket through intercommunicating pore when negative pressure.Under the whirling motion effect forming at rolling element high speed scroll, flow into the lubricant oil of rolling element cavity volume, inside and outside rolling element, on surface of contact, form elastic lubrication region, realize lubricating bearing.
3. the invention has the advantages that:
(1) simple in structure: the liquid lubrication system of high-speed bearing Special use involved in the present invention, vibrate by elasitic layer, produce zone of positive pressure and negative pressuren zone at interior reservoir oil pocket, for lubricating oil flow provides necessary driving force, effectively simplified bearing oil supply system.
(2) reliability is high: the liquid lubrication system of high-speed bearing Special use involved in the present invention, adopt elasitic layer to vibrate as power source, lubricant oil under pressure, enter rolling element cavity volume through being distributed in the intercommunicating pore of elasitic layer, guarantee the uniformity that lubricant oil distributes, the surface of contact of having guaranteed each high-speed rotating component of bearing all can be covered by lubricant oil, has effectively improved the reliability of whole bearing arrangement under running up.
(3) cost is low: the liquid lubrication system of high-speed bearing Special use involved in the present invention, the radial effect power of utilizing bearing inner race high speed rotating to certainly lead to, the driving force of supplying with as lubricant oil in bearing, greatly simplify the parts of whole bearing lubrication system, effectively reduced cost.
Brief description of the drawings
Fig. 1 is the liquid lubrication entire system structure diagram of high-speed bearing Special use of the present invention;
Fig. 2 is the liquid lubrication System Working Principle schematic diagram of high-speed bearing Special use of the present invention;
In figure: 1. the outside shoe cream room of bearing support 2.
3. bearing outer ring 4. interior reservoir oil pocket 5. elasitic layers
6. rolling element 7. rolling element cavity volume 8. bearing inner races
9. intercommunicating pore 10. zone of positive pressure 11. negative pressuren zones
12. radial effect power
Embodiment
The liquid lubrication system of a kind of high-speed bearing Special use of the present invention, it comprises bearing inner race 8, rolling element 6, elasitic layer 5, bearing outer ring 3, outside shoe cream room 2, interior reservoir oil pocket 4, intercommunicating pore 9 and bearing support 1, position annexation between them is: bearing inner race 8 is positioned at bearing inner end, rolling element 6 is arranged between bearing inner race 8 and elasitic layer 5, elasitic layer 5 is positioned at rolling element 6 outsides, its inner headed face contacts with rolling element 6, interior reservoir oil pocket 4 is arranged between elasitic layer 5 and bearing outer ring 3, outside shoe cream room 2 is positioned at the outside of bearing outer ring 3, intercommunicating pore 9 is distributed on bearing outer ring 3 and elasitic layer 5, bearing support 1 is positioned at the outermost surface of bearing, its inner arc surface is the outer wall of outside shoe cream room 2.
Described bearing inner race 8 is a ring solid of rotation part, and its periphery contacts and provides support with rolling element 6, is the driving link of this lubricating bearings;
Described rolling element 6 is cylindrical component, is arranged between bearing inner race 8 and elasitic layer 5, and its Main Function is that the radial effect power that bearing inner race 8 is rotated to generation is delivered to elasitic layer 5;
Described elasitic layer 5 is cylindrical shape thin-walled parts, some radial holes that along the circumferential direction distribute, when bearing inner race 8 rotates the distortion of elasitic layer 5 and vibration make lubricant oil radially aperture flow;
Described bearing outer ring 3 is a rotating body parts, is designed with ring raceway on it, supports for rolling element 6 provides motion;
Described outside shoe cream room 2 is drums, and the internal face of its cylinder is the periphery of bearing outer ring 3, and outside shoe cream room 2 is for storing lubricant oil, and its volume size is relevant working life with bearing;
Described interior reservoir oil pocket 4 is lubricant oil is flowed to rolling element cavity volume 7 buffer areas by outside shoe cream room 2, and it is shaped as the ring being interconnected, and in the time that bearing inner race 8 rotates, the pressure in interior reservoir oil pocket 2 changes;
Described intercommunicating pore 9 is the radial holes that along the circumferential direction distribute on bearing outer ring 3 and elasitic layer 5, and this hole is the connecting passage between outside shoe cream room 2, interior reservoir oil pocket 4 and rolling element cavity volume 7, and its pore size is relevant with greasy property;
Described bearing support 1 is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring 3 forms outside shoe cream room 2.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
As shown in Figure 1, be the liquid lubrication entire system structure diagram of high-speed bearing Special use of the present invention.Its main body is made up of several parts such as bearing support 1, bearing outer ring 3, elasitic layer 5, rolling element 6, bearing inner race 8 and intercommunicating pores 9.Wherein bearing inner race 8 is for bearing is fixed on axis body, and provides support for rolling element 6.The interior motion of rolling element cavity volume 7 that rolling element 6 forms at bearing inner race 8 and elasitic layer 5.Bearing support 1 forms outside shoe cream room 2 with bearing outer ring 3, and elasitic layer 5 forms interior reservoir oil pocket 4 with bearing outer ring 3, for storing lubricant oil.Intercommunicating pore 9 is distributed on bearing outer ring 3 and elasitic layer 5, connects outside shoe cream room 2, interior reservoir oil pocket 4 and rolling element cavity volume 7, forms the circulation loop of lubricant oil, thereby realizes efficient, proper lubrication to bearing.
As shown in Figure 2, be the liquid lubrication System Working Principle schematic diagram of high-speed bearing Special use of the present invention.When bearing inner race high speed rotating, will produce inevitable radial effect power 12, this radial effect power 12 through bearing inner race 8 and with it the rolling element 6 of connecting part transmit, act on elasitic layer 5, elasitic layer 5 produces micro-distortion under the effect of radial effect power 12, simultaneously along circumferentially producing small slippage, these force and deformations are converted into the vibration of radially shear wave and longitudinal harmonic wave along the circumferential direction of elasitic layer 5, vibration makes lubricant oil overcome the adsorption power that low volatilization high viscosity characteristic produces, and is the mobile condition of having created of lubricant oil.The vibration of elasitic layer 5 makes it produce wave transformation as shown in the figure, produce corresponding zone of positive pressure 10 and negative pressuren zone 11 at interior reservoir oil pocket 4, zone of positive pressure 10 makes lubricant oil flow into rolling element cavity volume 7 by the intercommunicating pore 9 that is distributed in elasitic layer 5, and 11 of negative pressuren zones make lubricant oil return to interior reservoir oil pocket 4 through intercommunicating pore 9.Due to the high speed rotating of bearing inner race 8, rolling element 6 high speed scrolls with dynamic bearing, the whirling motion forming makes lubricant oil interior mobile at rolling element cavity volume 7, thereby on the inside and outside surface of contact of rolling element 6, form elastic lubrication region, realize reliable, high-efficiency lubricating for each high-speed rotating component in bearing.
Claims (1)
1. a liquid lubrication system for high-speed bearing Special use, is characterized in that: it comprises bearing inner race, rolling element, elasitic layer, bearing outer ring, outside shoe cream room, interior reservoir oil pocket, intercommunicating pore and bearing support; Bearing inner race is positioned at bearing inner end, rolling element is arranged between bearing inner race and elasitic layer, elasitic layer is positioned at rolling element outside, its inner headed face contacts with rolling element, interior reservoir oil pocket is arranged between elasitic layer and bearing outer ring, and outside shoe cream room is positioned at the outside of bearing outer ring, and intercommunicating pore is distributed on bearing outer ring and elasitic layer, bearing seat is in the outermost surface of bearing, and its inner arc surface is the outer wall of outside shoe cream room;
Described bearing inner race is a ring solid of rotation part, and its periphery contacts and provides support with rolling element, is the driving link of this lubricating bearings;
Described rolling element is cylindrical component, is arranged between bearing inner race and elasitic layer, and its effect is that the radial effect power that bearing inner race rotation is produced is delivered to elasitic layer;
Described elasitic layer is cylindrical shape thin-walled parts, is along the circumferential direction distributed with a plurality of radial holes, when bearing inner race rotates the distortion of elasitic layer and vibration make lubricant oil radially aperture flow;
Described bearing outer ring is a rotating body parts, is designed with ring raceway on it, supports for rolling element provides motion;
Described outside shoe cream room is drum, and the internal face of its cylinder is the periphery of bearing outer ring, and outside shoe cream room is used for storing lubricant oil, and its volume size is relevant working life with bearing;
Described interior reservoir oil pocket is lubricant oil is flowed to rolling element cavity volume buffer area by outside shoe cream room, and it is shaped as the ring being interconnected, and in the time that bearing inner race rotates, the pressure in interior reservoir oil pocket changes;
Described intercommunicating pore is the radial hole along the circumferential direction distributing on bearing outer ring and elasitic layer, and this hole is the connecting passage between outside shoe cream room, interior reservoir oil pocket and rolling element cavity volume, and its pore size is relevant with greasy property;
Described bearing support is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring forms outside shoe cream room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396620.8A CN102720765B (en) | 2011-12-02 | 2011-12-02 | Liquid lubricating system specially used for high-speed bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396620.8A CN102720765B (en) | 2011-12-02 | 2011-12-02 | Liquid lubricating system specially used for high-speed bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720765A CN102720765A (en) | 2012-10-10 |
| CN102720765B true CN102720765B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110396620.8A Expired - Fee Related CN102720765B (en) | 2011-12-02 | 2011-12-02 | Liquid lubricating system specially used for high-speed bearing |
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| CN (1) | CN102720765B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557236B (en) * | 2013-11-15 | 2015-11-04 | 北京航空航天大学 | A space liquid sealing lubricating device |
| CN104165186A (en) * | 2014-08-09 | 2014-11-26 | 常州市武进华瑞电子有限公司 | High efficiency motor bearing |
| CN118793775B (en) * | 2024-09-14 | 2024-12-03 | 北京子牛亦东科技有限公司 | Bearing system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286829A (en) * | 1978-10-02 | 1981-09-01 | Skf Industrial Trading & Development Co. B. V. | Bearing for high rotational speeds |
| CN201310562Y (en) * | 2008-12-19 | 2009-09-16 | 安庆利达汽车轴承制造有限公司 | Stainless steel bearing mechanism |
| CN101672420A (en) * | 2009-09-01 | 2010-03-17 | 宁波市镇海捷登应用技术研究所 | Lubricating device of bearing |
| CN201539502U (en) * | 2009-10-09 | 2010-08-04 | 张晓梨 | Bearing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004225807A (en) * | 2003-01-23 | 2004-08-12 | Ntn Corp | Lubricating device for rolling bearing |
-
2011
- 2011-12-02 CN CN201110396620.8A patent/CN102720765B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4286829A (en) * | 1978-10-02 | 1981-09-01 | Skf Industrial Trading & Development Co. B. V. | Bearing for high rotational speeds |
| CN201310562Y (en) * | 2008-12-19 | 2009-09-16 | 安庆利达汽车轴承制造有限公司 | Stainless steel bearing mechanism |
| CN101672420A (en) * | 2009-09-01 | 2010-03-17 | 宁波市镇海捷登应用技术研究所 | Lubricating device of bearing |
| CN201539502U (en) * | 2009-10-09 | 2010-08-04 | 张晓梨 | Bearing device |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2004-225807A 2004.08.12 |
| 姬芬竹等.月球车辆无动力润滑系统的结构设计与仿真.《润滑与密封》.2009,第34卷(第10期), |
| 月球车辆无动力润滑系统的结构设计与仿真;姬芬竹等;《润滑与密封》;20091031;第34卷(第10期);41-44 * |
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| CN102720765A (en) | 2012-10-10 |
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Granted publication date: 20140730 Termination date: 20151202 |
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