CN101975225A - Static pressure sliding bearing with control oil chambers - Google Patents
Static pressure sliding bearing with control oil chambers Download PDFInfo
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- CN101975225A CN101975225A CN 201010295057 CN201010295057A CN101975225A CN 101975225 A CN101975225 A CN 101975225A CN 201010295057 CN201010295057 CN 201010295057 CN 201010295057 A CN201010295057 A CN 201010295057A CN 101975225 A CN101975225 A CN 101975225A
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- oil pocket
- static pressure
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- control
- oil
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Abstract
The invention provides a static pressure sliding bearing with control oil chambers, which comprises a bearing body, wherein static pressure oil chambers are distributed in the bearing body; one control oil chamber is nested in each static pressure oil chamber, and a pressure isolation surface for isolating oil chamber pressure is arranged between each static pressure oil chamber and the corresponding control oil chamber; the static pressure oil chambers and the control oil chambers are respectively provided with independent oil supply holes, and the oil supply pressure of the control oil chambers is greater than that of the static pressure oil chambers; and an oil return slot and an oil return hole are arranged between the adjacent static pressure oil chambers. The control oil chambers are nested in the static pressure oil chambers of the static pressure sliding bearing, and the static pressure sliding bearing can realize the fiction of vibration of a rotary neck journal, realize the desired axis orbit and effectively improve the control performance of the static pressure sliding bearing by initiatively regulating the pressure of the control oil chambers.
Description
Technical field
The present invention relates to a kind of static-pressure sliding bearing of controlling oil pocket, belong to the sliding bearing technical field.
Background technique
Sliding bearing has extensive use in rotating machinery, can be divided into hydrodynamic sliding bearing, static-pressure sliding bearing and hybrid sliding bearing by working principle.The former belongs to uncontrollable bearing, and both can control the back by charge oil pressure.For example control vibration, stability, the rotating accuracy of axle journal or realize the desired trajectory control in axle center.
Hybrid sliding bearing is owing to produce irregular kinetic pressure on moral oil sealing surface between adjacent oil pocket, the control effect is difficult to grasp, and the oil sealing surface of hydrostatic bearing is little, and the kinetic pressure of generation is very little, and is also very little to the influence of control, is the ideal control bearing.But, because the oil capacity of static pressure oil pocket is bigger, directly adopt static pressure oil pocket pressure to control, exist sensitivity low, the time sluggish big shortcoming.
At present, more and more at industrial field to the application that bearing characteristics is controlled, for example real-time monitoring that the vibration characteristics and the stability of huge revolving machinery are carried out, the compensation control that improves the machine tool rotary precision.Along with the application of non-round surface in mechanical field is more and more, as the oval skirt section of the change of motor, horn mouth special pinhole etc. to the processing of this class curved surface, require again the revolution axle journal is carried out oval axle center TRAJECTORY CONTROL.
Summary of the invention
The present invention is directed to the deficiency that existing static pressure/hybrid sliding bearing exists, provide a kind of hydrostatic bearing that contains special-purpose control oil pocket,, realize the vibration of revolution axle journal is drawn up, or realize the axle center locus of expectation by the pressure of active adjustment control chamber.
Control oil pocket static-pressure sliding bearing of the present invention adopts following technical proposals:
This control oil pocket static-pressure sliding bearing comprises bearing support, is distributed with the static pressure oil pocket in the bearing support; Each static pressure oil pocket is embedded to be with a control oil pocket, is provided with the pressure isolation face of isolation oil pocket pressure between static pressure oil pocket and the control oil pocket.
The static pressure oil pocket is the same with the quantity of control oil pocket, is 2 or 3 multiple.
Static pressure oil pocket and control oil pocket are respectively equipped with independent oil supply hole, and the charge oil pressure of control oil pocket is greater than the charge oil pressure of static pressure oil pocket; Influence pilot pressure with the pressure that prevents the static pressure oil pocket by oil sealing surface.
Be provided with oil-return groove and spill port between adjacent static pressure oil pocket, to reduce on the oil sealing surface irregular kinetic pressure to the influence of control performance.
The present invention is nested with the control oil pocket at the static pressure oil pocket of static-pressure sliding bearing, can effectively improve the control performance of static-pressure sliding bearing.By the pressure of active adjustment control oil pocket, realized the axle center locus that the vibration of revolution axle journal is drawn up and realized expectation.
Description of drawings
Fig. 1 is the structural representation that the present invention controls the oil pocket static-pressure sliding bearing;
Fig. 2 is along the sectional view of A-A line among Fig. 1.
Wherein: 1, bearing support, 2, the static pressure oil pocket, 3, the control oil pocket, 4, the hydrostatic bearing oil supply hole, 5, control oil pocket oil supply hole, 6, oil-return groove, 7, spill port, 8, the pressure isolation face.
Embodiment
As depicted in figs. 1 and 2, control oil pocket static-pressure sliding bearing of the present invention comprises bearing support 1, be distributed with static pressure oil pocket 2 in the bearing support 1, each static pressure oil pocket 2 is embedded to be with a control oil pocket 3, static pressure oil pocket 2 with control oil pocket 3 and be provided with pressure isolation face 8 between the two.Static pressure oil pocket 2 is the same with the quantity of control oil pocket 3, is 2 or 3 multiple.
Be provided with 2 oil supply holes 4 in each static pressure oil pocket 2, be provided with oil supply hole 5 in each control oil pocket 3.Oil supply hole 4 is respectively static pressure oil pocket 2 with oil supply hole 5 and provides different big or small charge oil pressures with control oil pocket 3, the charge oil pressure of control oil pocket 3 is greater than the charge oil pressure of its nested corresponding static pressure oil pocket 2, so not only can prevent the pressure influence pilot pressure of static pressure oil pocket, and the control oil of control oil pocket 3 can be realized oil return by pressure isolation face 8.
Place, the neutral position of adjacent static pressure oil pocket 2 is equipped with oil-return groove 6 and oil outlet 7 on the bearing support 1, to effectively reduce the influence of the irregular kinetic pressure of oil sealing surface to the control effect.
In order to realize the desired trajectory control in axle center, the working surface of bearing can be done suitable variation, as realize elliptical shaft heart track, working surface can be processed into ellipse in the bearing, as minor axis 80mm, major axis 80.05mm, and the central position of static pressure oil pocket and control oil pocket is placed on oval long and short axle head point, then can be elliptical orbit space is provided, can realize oval axle center locus by the control of controlling oil pocket.
If desired the bearing play is adjusted, working surface and axle journal in the bearing are shown have the certain taper that adapts as 1: 100, by the clearance-adjustable that moves axially of bearing.
Claims (4)
1. a control oil pocket static-pressure sliding bearing comprises bearing support, is distributed with the static pressure oil pocket in the bearing support; It is characterized in that: each static pressure oil pocket is embedded to be with a control oil pocket, is provided with the pressure isolation face of isolation oil pocket pressure between static pressure oil pocket and the control oil pocket.
2. control oil pocket static-pressure sliding bearing according to claim 1 is characterized in that: described static pressure oil pocket is the same with the quantity of control oil pocket, is 2 or 3 multiple.
3. control oil pocket static-pressure sliding bearing according to claim 1 is characterized in that: described static pressure oil pocket and control oil pocket are respectively equipped with independent oil supply hole, and the charge oil pressure of control oil pocket is greater than the charge oil pressure of static pressure oil pocket.
4. control oil pocket static-pressure sliding bearing according to claim 1 is characterized in that: be provided with oil-return groove and spill port between described adjacent static pressure oil pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102950570A CN101975225B (en) | 2010-09-29 | 2010-09-29 | Static pressure sliding bearing with control oil chambers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102950570A CN101975225B (en) | 2010-09-29 | 2010-09-29 | Static pressure sliding bearing with control oil chambers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101975225A true CN101975225A (en) | 2011-02-16 |
| CN101975225B CN101975225B (en) | 2012-05-23 |
Family
ID=43575130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102950570A Expired - Fee Related CN101975225B (en) | 2010-09-29 | 2010-09-29 | Static pressure sliding bearing with control oil chambers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101975225B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500568A (en) * | 2014-12-23 | 2015-04-08 | 天津尚吉液压设备有限公司 | Novel linear hydraulic bearing |
| CN105240405A (en) * | 2015-11-13 | 2016-01-13 | 青岛理工大学 | Static-pressure sliding bearing with six oil chambers |
| CN108119546A (en) * | 2017-12-22 | 2018-06-05 | 上海理工大学 | A kind of static pressure cylinder bearing |
| CN114623160A (en) * | 2022-03-25 | 2022-06-14 | 西安热工研究院有限公司 | Hybrid bearing |
| CN114623159A (en) * | 2022-03-25 | 2022-06-14 | 西安热工研究院有限公司 | Hydrostatic bearing capable of preventing cavitation erosion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872715A (en) * | 1981-10-23 | 1983-04-30 | Mitsubishi Heavy Ind Ltd | Journal bearing |
| CN85203674U (en) * | 1985-09-05 | 1987-04-22 | 北京航空学院 | Dynamic and static pressure mixing bearing with hole ring surface throttle, shallow cavity and adjustable groove |
| CN2359517Y (en) * | 1997-10-10 | 2000-01-19 | 浙江大学 | High-temp metal hydraulic static-pressure bearing |
-
2010
- 2010-09-29 CN CN2010102950570A patent/CN101975225B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5872715A (en) * | 1981-10-23 | 1983-04-30 | Mitsubishi Heavy Ind Ltd | Journal bearing |
| CN85203674U (en) * | 1985-09-05 | 1987-04-22 | 北京航空学院 | Dynamic and static pressure mixing bearing with hole ring surface throttle, shallow cavity and adjustable groove |
| CN2359517Y (en) * | 1997-10-10 | 2000-01-19 | 浙江大学 | High-temp metal hydraulic static-pressure bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500568A (en) * | 2014-12-23 | 2015-04-08 | 天津尚吉液压设备有限公司 | Novel linear hydraulic bearing |
| CN105240405A (en) * | 2015-11-13 | 2016-01-13 | 青岛理工大学 | Static-pressure sliding bearing with six oil chambers |
| CN108119546A (en) * | 2017-12-22 | 2018-06-05 | 上海理工大学 | A kind of static pressure cylinder bearing |
| CN114623160A (en) * | 2022-03-25 | 2022-06-14 | 西安热工研究院有限公司 | Hybrid bearing |
| CN114623159A (en) * | 2022-03-25 | 2022-06-14 | 西安热工研究院有限公司 | Hydrostatic bearing capable of preventing cavitation erosion |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101975225B (en) | 2012-05-23 |
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Granted publication date: 20120523 Termination date: 20140929 |
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