CN102720765A - Liquid lubricating system specially used for high-speed bearing - Google Patents
Liquid lubricating system specially used for high-speed bearing Download PDFInfo
- Publication number
- CN102720765A CN102720765A CN2011103966208A CN201110396620A CN102720765A CN 102720765 A CN102720765 A CN 102720765A CN 2011103966208 A CN2011103966208 A CN 2011103966208A CN 201110396620 A CN201110396620 A CN 201110396620A CN 102720765 A CN102720765 A CN 102720765A
- Authority
- CN
- China
- Prior art keywords
- bearing
- rolling element
- inner race
- elasitic layer
- outer ring
- 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.)
- Granted
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
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 the liquid lubrication system of the special use of a kind of high-speed bearing, belong to space, aviation lubrication technical field with bearing.
Background technique
Increasingly high at aviation field bearing rotating speed, the selection of lubricating system is especially crucial, and good lubricating system must guarantee the 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 be through nozzle with the direct pressurized jet of oil pump, need to adopt high pressure oil pump and nozzle, not only bearing is produced very big impact force, and the requirement of strength of component in the system is improved and cost increases.Oil mist lubrication is being transported to lubricating point after the lubricant oil atomizing; Formed mist of oil is difficult for producing lubricated required oil film at lubricating point in the atomising device; Need condensing mouth be installed at lubricating point, make mist of oil, must be equipped with a cover air compression system in order to carry mist of oil through forming the elaioleucite that drips shape behind the condensing mouth; These additional devices make the oil mist system structure complicated, and the fed distance of mist of oil also is restricted simultaneously.Oil-air lubrication structurally changes condensing mouth into oil and gas distributor than oil mist lubrication, and its cost is improved, and structure is complicated more.
Summary of the invention
1, purpose: the objective of the invention is for the liquid lubrication system of the special use of a kind of high-speed bearing is provided, it has overcome the deficiency of existing technology, and it is simple in structure, and is with low cost, reliable and secure.
2, technological scheme: the present invention discloses the liquid lubrication system of the special use of a kind of high-speed bearing; 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 the bearing inner end, and rolling element is arranged between bearing inner race and the elasitic layer, and elasitic layer is positioned at the rolling element outside; Its inner headed face contacts with rolling element; The interior reservoir oil pocket is arranged between elasitic layer and the 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 the 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.
Said bearing inner race is a ring solid of rotation spare, and its periphery contacts and provides support with rolling element, is the driving link of this lubricating bearings;
Said rolling element is a cylindrical component, is installed between bearing inner race and the elasitic layer, and it mainly acts on is to rotate the radial effect power that produces to bearing inner race to be delivered to elasitic layer;
Said elasitic layer is the cylindrical shape thin-walled parts, when some radial holes that along the circumferential direction distribute, bearing inner race rotate the distortion of elasitic layer and vibration make lubricant oil radially aperture flow;
Said bearing outer ring is a solid of rotation part, is designed with the ring raceway on it, supports for rolling element provides motion;
Said outside shoe cream room is a drum, and the internal face of its cylinder is the periphery of bearing outer ring, and outside shoe cream room is used for storing lubricating oil, and its volume size is relevant working life with bearing;
To be lubricant oil flow to the buffer area of rolling element cavity volume by outside shoe cream room to said interior reservoir oil pocket, and it is shaped as the ring that is interconnected, and when bearing inner race rotated, the pressure in the interior reservoir oil pocket changed;
Said intercommunicating pore is the radial hole that along the circumferential direction distributes on bearing outer ring and the elasitic layer, and this hole is the connecting passage between outside shoe cream room, interior reservoir oil pocket and the rolling element cavity volume, and its pore size is relevant with greasy property;
Said bearing support is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring constitutes outside shoe cream room.
Structure of the present invention and principle analysis: its bearing outside and inside have oil-bearing structure; Produce radial effect power during the bearing inner race high-speed rotation; This active force is delivered to elasitic layer through rolling element; Cause the radial vibration of elasitic layer and produce little distortion, small slippage along the circumferential direction also takes place simultaneously, these stressed and distortion are converted into the radially shear wave vibration of elasitic layer and along the circumferential direction vertical harmonic wave; They have overcome the surface 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 the rolling element cavity volume through the intercommunicating pore that is distributed in elasitic layer, and negative pressuren zone then makes lubricant oil unnecessary in the rolling element cavity volume return the interior reservoir oil pocket through intercommunicating pore.Because the bearing inner race high-speed rotation drives the rolling element high speed scroll, the whirling motion of formation is flowed lubricant oil in the rolling element cavity volume, thereby on the inside and outside surface of contact of rolling element, forms the elasticity regions of lubrication.This has just simplified bearing lubrication system greatly, and it is more flexible to make bearing arrange.
The radial force that produces during the bearing inner race high speed rotating acts on elasitic layer and makes it that small radial vibration take place; And circumferentially elasitic layer distortion in diverse location place is different; Produce different compression or expansion (amount), thereby in the shoe cream room of elasitic layer and bearing outer ring formation, form local malleation or negative pressure.Under the effect of malleation, lubricant oil flows into the rolling element cavity volume, then makes lubricant oil return the interior reservoir oil pocket through intercommunicating pore during negative pressure.Under the whirling motion effect that the rolling element high speed scroll forms, flow into the lubricant oil of rolling element cavity volume, on surface of contact inside and outside the rolling element, form the elasticity regions of lubrication, realize lubricating to bearing.
3. the invention has the advantages that:
(1) simple in structure: the liquid lubrication system of the special use of high-speed bearing involved in the present invention; Vibrate through elasitic layer; Produce zone of positive pressure and negative pressuren zone at the interior reservoir oil pocket, necessary driving force is provided, simplified the bearing oil supply system effectively for lubricant oil flows.
(2) reliability is high: the liquid lubrication system of the special use of high-speed bearing involved in the present invention; Adopt the elasitic layer vibration as power source; Lubricant oil gets into the rolling element cavity volume through the intercommunicating pore that is distributed in elasitic layer under pressure, has guaranteed 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 the special use of high-speed bearing involved in the present invention; The radial effect power of utilizing the bearing inner race high-speed rotation to certainly lead to; As the driving force that lubricant oil in the bearing is supplied with, simplified the parts of whole bearing lubrication system greatly, reduced cost effectively.
Description of drawings
Fig. 1 is the liquid lubrication entire system structure diagram of the special use of high-speed bearing according to the invention;
Fig. 2 is the liquid lubrication system works principle schematic of the special use of high-speed bearing according to the invention;
Among the figure: 1. bearing support 2. outside shoe cream rooms
3. bearing outer ring 4. interior reservoir oil pockets 5. elasitic layers
6. rolling element 7. rolling element cavity volumes 8. bearing inner races
9. intercommunicating pore 10. zone of positive pressures 11. negative pressuren zones
12. radial effect power
Embodiment
The liquid lubrication system of the special use of a kind of high-speed bearing 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 the bearing inner end, and rolling element 6 is arranged between bearing inner race 8 and the elasitic layer 5, and 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 the bearing outer ring 3, and outside shoe cream room 2 is positioned at the outside of bearing outer ring 3, and intercommunicating pore 9 is distributed on bearing outer ring 3 and the elasitic layer 5; Bearing support 1 is positioned at the outermost surface of bearing, and its inner arc surface is the outer wall of outside shoe cream room 2.
Said bearing inner race 8 is a ring solid of rotation spare, and its periphery contacts and provides support with rolling element 6, is the driving link of this lubricating bearings;
Said rolling element 6 is a cylindrical component, is installed between bearing inner race 8 and the elasitic layer 5, and it mainly acts on is to rotate the radial effect power that produces to bearing inner race 8 to be delivered to elasitic layer 5;
Said 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;
Said bearing outer ring 3 is a solid of rotation part, is designed with the ring raceway on it, supports for rolling element 6 provides motion;
Said 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 used for storing lubricating oil, and its volume size is relevant working life with bearing;
To be lubricant oil flow to the buffer area of rolling element cavity volume 7 by outside shoe cream room 2 to said interior reservoir oil pocket 4, and it is shaped as the ring that is interconnected, and when bearing inner race 8 rotated, the pressure in the interior reservoir oil pocket 2 changed;
Said intercommunicating pore 9 are bearing outer rings 3 with elasitic layer 5 on the radial hole that along the circumferential direction distributes, this hole is the connecting passage between outside shoe cream room 2, interior reservoir oil pocket 4 and the rolling element cavity volume 7, its pore size is relevant with greasy property;
Said bearing support 1 is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring 3 constitutes outside shoe cream room 2.
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
As shown in Figure 1, be the liquid lubrication entire system structure diagram of the special use of high-speed bearing according to the 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 used for bearing fixing on axis body, and provides support for rolling element 6.Rolling element 6 motion in the rolling element cavity volume 7 that bearing inner race 8 and elasitic layer 5 constitute.Bearing support 1 constitutes outside shoe cream room 2 with bearing outer ring 3, and elasitic layer 5 constitutes interior reservoir oil pocket 4 with bearing outer ring 3, is used to store lubricant oil.Intercommunicating pore 9 is distributed on bearing outer ring 3 and the elasitic layer 5, connects outside shoe cream room 2, interior reservoir oil pocket 4 and rolling element cavity volume 7, constitutes the circulation loop of lubricant oil, thereby realizes efficient, proper lubrication to bearing.
As shown in Figure 2, be the liquid lubrication system works principle schematic of the special use of high-speed bearing according to the invention.During the bearing inner race high-speed rotation; Will produce inevitable radial effect power 12; This radial effect power 12 acts on elasitic layer 5 through bearing inner race 8 and rolling element 6 transmission of connecting part with it, and elasitic layer 5 produces little distortion under the effect of radial effect power 12; Simultaneously along circumferentially producing small slippage; These stressed and distortion are converted into the radially shear wave vibration of elasitic layer 5 and along the circumferential direction vertical harmonic wave, and vibration makes lubricant oil overcome the surface 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 through the intercommunicating pore 9 that is distributed in elasitic layer 5, and 11 of negative pressuren zones make lubricant oil return interior reservoir oil pocket 4 through intercommunicating pore 9.Because the high-speed rotation of bearing inner race 8; Drive rolling element 6 high speed scrolls of bearing; The whirling motion that forms makes lubricant oil in rolling element cavity volume 7, flow; Thereby on the inside and outside surface of contact of rolling element 6, form the elasticity regions of lubrication, realize lubricating for the reliable, efficient of each high-speed rotating component in the bearing.
Claims (1)
1. the liquid lubrication system of the special use of high-speed bearing, it 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 the bearing inner end, and rolling element is arranged between bearing inner race and the elasitic layer, and elasitic layer is positioned at the rolling element outside; Its inner headed face contacts with rolling element; The interior reservoir oil pocket is arranged between elasitic layer and the 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 the 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;
Said bearing inner race is a ring solid of rotation spare, and its periphery contacts and provides support with rolling element, is the driving link of this lubricating bearings;
Said rolling element is a cylindrical component, is installed between bearing inner race and the elasitic layer, and its effect is to be delivered to elasitic layer to the radial effect power that the bearing inner race rotation produces;
Said elasitic layer is the cylindrical shape thin-walled parts, along the circumferential direction is 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;
Said bearing outer ring is a solid of rotation part, is designed with the ring raceway on it, supports for rolling element provides motion;
Said outside shoe cream room is a drum, and the internal face of its cylinder is the periphery of bearing outer ring, and outside shoe cream room is used for storing lubricating oil, and its volume size is relevant working life with bearing;
To be lubricant oil flow to the buffer area of rolling element cavity volume by outside shoe cream room to said interior reservoir oil pocket, and it is shaped as the ring that is interconnected, and when bearing inner race rotated, the pressure in the interior reservoir oil pocket changed;
Said intercommunicating pore is the radial hole that along the circumferential direction distributes on bearing outer ring and the elasitic layer, and this hole is the connecting passage between outside shoe cream room, interior reservoir oil pocket and the rolling element cavity volume, and its pore size is relevant with greasy property;
Said bearing support is the supporting element of bearing, and the exterior arc surface of its inner arc surface and bearing outer ring constitutes 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 true CN102720765A (en) | 2012-10-10 |
| CN102720765B CN102720765B (en) | 2014-07-30 |
Family
ID=46946603
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720765B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557236A (en) * | 2013-11-15 | 2014-02-05 | 北京航空航天大学 | 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 |
Citations (5)
| 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 |
| JP2004225807A (en) * | 2003-01-23 | 2004-08-12 | Ntn Corp | Lubricating device for rolling bearing |
| 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 |
-
2011
- 2011-12-02 CN CN201110396620.8A patent/CN102720765B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JP2004225807A (en) * | 2003-01-23 | 2004-08-12 | Ntn Corp | Lubricating device for rolling bearing |
| 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 (1)
| Title |
|---|
| 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》, vol. 34, no. 10, 31 October 2009 (2009-10-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557236A (en) * | 2013-11-15 | 2014-02-05 | 北京航空航天大学 | Space liquid sealing lubricating device |
| CN103557236B (en) * | 2013-11-15 | 2015-11-04 | 北京航空航天大学 | A kind of space sealed liquid lubricator |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102720765B (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7909513B2 (en) | Rolling bearing device | |
| CN201322089Y (en) | Centrifugal force oil supply lubrication structure for planet wheel bearing of planetary reduction gear | |
| CN102812261B (en) | Rotating machinery, gas turbine engine and the damped system for rotating machinery | |
| CN100572835C (en) | Rolling bearing system and axle | |
| CN104153886B (en) | Bearer ring oil supplying device | |
| CN102705427B (en) | Squeeze film damper | |
| US11248609B2 (en) | Oil line structure of compressor and compressor | |
| CN102927124A (en) | Multi-layer bubbled foil radial dynamic pressure gas bearing | |
| US20110064340A1 (en) | Method and apparatus for stabilizing a squeeze film damper for a rotating machine | |
| CN103133362A (en) | Vacuum pump provided with rolling bearing | |
| CN105143682A (en) | Vacuum pump | |
| EP1767800A1 (en) | Lubricating structure of rolling bearing | |
| CN101250846A (en) | Lubricating and cooling system for vibrating roller | |
| CN102720765B (en) | Liquid lubricating system specially used for high-speed bearing | |
| CN107725241A (en) | With the high pressure fuel pump for improving cam mechanism | |
| JP2009047266A (en) | Rolling bearing device | |
| US10663005B2 (en) | Bearing race cooling | |
| CN202674142U (en) | Extrusion oil film damper | |
| CN210461382U (en) | Self-excitation type oil mist jet lubrication high-speed bearing | |
| CN110566573A (en) | Self-excitation type oil mist jet lubrication high-speed bearing, lubrication method and application | |
| CN203336197U (en) | Disc separator high-speed bearing lubricating device | |
| CN102788083B (en) | Lubricating oil supplying bearing system driven by machinery-fluid coupling | |
| JP2009047265A (en) | Rolling bearing device | |
| CN103089620A (en) | Scroll compressor | |
| CN207715542U (en) | A kind of double cone roller bearing with self-lubricate function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |