CN104500569A - T-shaped hydraulic bearing of single restraint DOF - Google Patents
T-shaped hydraulic bearing of single restraint DOF Download PDFInfo
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- CN104500569A CN104500569A CN201410816474.3A CN201410816474A CN104500569A CN 104500569 A CN104500569 A CN 104500569A CN 201410816474 A CN201410816474 A CN 201410816474A CN 104500569 A CN104500569 A CN 104500569A
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Abstract
The invention provides a T-shaped hydraulic bearing of single restraint DOF. The T-shaped hydraulic bearing comprises a fixed panel and a fixed bottom plate, wherein a movable shaft which is in the shape of a Chinese character 'tu' is arranged between the fixed panel and the fixed bottom plate, the bulge part of the movable shaft which is in the shape of a Chinese character 'tu' penetrates through the fixed panel, and an upper fixed block and lower fixed block are arranged between the fixed panel and the fixed bottom plate; the movable shaft which is in the shape of a Chinese character 'tu' is clamped between the upper fixed block and the lower fixed block, a gap is formed between the upper fixed block and the lower fixed block, and one surface, close to the movable shaft which is in the shape of a Chinese character 'tu', of the fixed panel is internally provided with a plurality of pressure-bearing chambers; and one surface, close to the movable shaft which is in the shape of a Chinese character 'tu', of the fixed bottom plate is also internally provided with a plurality of pressure-bearing chambers, the fixed bottom plate is also provided with an oil inlet, and the oil inlet is connected with each pressure-bearing chamber. The T-shaped hydraulic bearing can carry out horizontal high-speed movement, the frequency is up to 2-2000hz, and during the high-speed operation process, the constant thermal expansion coefficient, the constant power factor and the constant precision are embodied.
Description
Technical field
The present invention relates to a kind of fluid bearing, particularly relate to that a kind of rigidity is large, precision is high, the T-shaped fluid bearing of long service life.
Background technique
Along with aerospace industry, the development of high precision machine tool, the high-precision fluid bearing of high capacity is crucial execution components and parts, for many years China relies on import to be applied in military project, space flight, on high precision machine tool, and the data of the price of costliness and relevant key annoying the progress of China's cause, a small amount of lubricant oil is only carried between common fluid bearing, play the lubrication in running, but this bearing is in running up, cannot the lateral force in load axle center, easy damage, because its precision and carrying reason can not be satisfied the demand, rigidity is large, the exploitation of the linear hydraulic bearing that precision is high is very necessary.
Summary of the invention
The problem to be solved in the present invention is to provide the T-shaped fluid bearing of the list constraint degrees of freedom that a kind of rigidity is large, precision is high, long service life, using scope are wide.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of T-shaped fluid bearing of single constraint degrees of freedom, it is characterized in that: comprise fixed panel and fixing bottom-plate, " convex " font movable axis is provided with between described fixed panel and fixing bottom-plate, the convex portion of described " convex " font movable axis runs through described fixed panel, fixed block and lower fixed block is also provided with between described fixed panel and fixing bottom-plate, described " convex " font movable axis is clipped between fixed piece and lower fixed block, and there is gap between upper fixed block and lower fixed block;
The one side that described fixed panel presses close to " convex " font movable axis is inwardly provided with some pressure-bearing rooms, and the one side that described fixing bottom-plate presses close to " convex " font movable axis is also inwardly provided with some pressure-bearing rooms;
Described fixing bottom-plate is also provided with filler opening, and described filler opening is all connected with each pressure-bearing room.
Further, described fixed panel is divided into the first fixed plate and the second fixed plate, and the protruding structure of described " convex " font movable axis is arranged between described first fixed plate and the second fixed plate.
Preferably, the pressure-bearing room on described fixed panel and the pressure-bearing room one_to_one corresponding on fixing bottom-plate.
Further, the cross section of described pressure-bearing room is semi-circular, rectangle, I shape or cross.
Preferably, the cross section of described pressure-bearing room is I shape.
Preferably, described each pressure-bearing room is equipped with pressure-bearing chamber inlet, and described pressure-bearing chamber inlet place is provided with flow controller, and described filler opening connects pressure-bearing chamber interior by each flow controller.
Further, described fixed panel outer surface is provided with some mounting holes, and the end face of the protruding structure of described " convex " font movable axis is provided with some mounting holes.
Further, described " convex " font movable axis and be covered with high pressure oil between fixed panel and fixing bottom-plate, described high pressure oil enters each pressure-bearing room by filler opening, and sprays towards the direction of " convex " font movable axis.
The advantage that the present invention has and good effect are: form that high pressure carries, high pressure sealing by pressure-bearing room and distribution " convex " font movable axis and the high pressure oil film between fixed panel and fixing bottom-plate, by, upper fixed block, lower fixed block and fixed panel, gap pressure release oil return between fixing bottom-plate, form closed loop oil system, its mesohigh ensure that the rigidity of bearing, precision and life-span.T-shaped fluid bearing can do horizontal high-speed motion, and frequency can reach 2-2000hz, and in running up, embodies constant thermal expansion coefficient, constant power factor, constant precision.
Accompanying drawing explanation
Fig. 1 is the plan view of the embodiment of the present invention 1.
Fig. 2 is the side view of the embodiment of the present invention 1.
In figure:
1, fixed panel; 2, upper fixed block; 3, fixing bottom-plate; 4, flow controller; 5, oil inlet hole; 6, gap; 7, pressure-bearing room; 8, " convex " font movable axis; 9, mounting hole; 10, lower fixed block.
Embodiment
Embodiment 1:
A kind of T-shaped fluid bearing of single constraint degrees of freedom, comprise fixed panel 1 and fixing bottom-plate 3, " convex " font movable axis 8 is provided with between stationary plane 1 plate and fixing bottom-plate 3, the convex portion of " convex " font movable axis 8 runs through fixed panel 1, fixed panel 1 is divided into the first fixed plate and the second fixed plate, and the protruding structure of " convex " font movable axis 8 is arranged between the first fixed plate and the second fixed plate.
Fixed block 2 and lower fixed block 10 is also provided with between fixed panel 1 and fixing bottom-plate 3, " convex " font movable axis 8 is clipped between fixed block 2 and lower fixed block 10, and there is gap 6 between upper fixed block 2 and lower fixed block 10, be convenient to " convex " font movable axis 8 slight shift.
The one side that fixed panel 1 presses close to " convex " font movable axis 8 is inwardly provided with some pressure-bearing rooms 7, and the one side that fixing bottom-plate 3 presses close to " convex " font movable axis 8 is also inwardly provided with some pressure-bearing rooms 7; On fixed panel 1 pressure-bearing room 7 and fixing bottom-plate 3 on pressure-bearing room 7 one_to_one corresponding, in the present embodiment, the cross section of pressure-bearing room 7 is I shape.
Wherein, each pressure-bearing room 7 is equipped with pressure-bearing chamber inlet, and pressure-bearing chamber inlet place is provided with flow controller 4, and fixing bottom-plate 3 is also provided with filler opening 5, and it is inner that filler opening 5 connects each pressure-bearing room 7 by each flow controller 4.
Fixed panel 1 outer surface is provided with some mounting holes 9, and the end face of the protruding structure of " convex " font movable axis 8 is provided with some mounting holes 9.
The high pressure oil of the working procedure of the present embodiment: 5-21MPa enters T-shaped fluid bearing by filler opening 5, logical filler opening 5 connects each flow controller 4, each pressure-bearing room 7 is entered inner by flow controller 4, direction towards " convex " font movable axis 8 is sprayed, the high pressure oil of the same pressure of fixed panel 1 ejection relative to the pressure-bearing room 7 on fixing bottom-plate 3, form support force, the running of protection bearing, also remain the lubrication of bearing simultaneously, unnecessary high pressure oil passes through by upper fixed block 2, lower fixed block 10 and fixed panel 1, gap between fixing bottom-plate 3 draws off, formation high pressure carries, high pressure sealing, the closed loop oil system of pressure release oil return, T-shaped fluid bearing can do horizontal high-speed motion, frequency can reach 2-2000hz, and in running up, embody constant thermal expansion coefficient, constant power factor, constant precision.
Above embodiments of the invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the scope of the invention change and improve, and all should still belong within this patent covering scope.
Claims (8)
1. the T-shaped fluid bearing of a single constraint degrees of freedom, it is characterized in that: comprise fixed panel and fixing bottom-plate, " convex " font movable axis is provided with between described fixed panel and fixing bottom-plate, the convex portion of described " convex " font movable axis runs through described fixed panel, fixed block and lower fixed block is also provided with between described fixed panel and fixing bottom-plate, described " convex " font movable axis is clipped between fixed piece and lower fixed block, and there is gap between upper fixed block and lower fixed block;
The one side that described fixed panel presses close to " convex " font movable axis is inwardly provided with some pressure-bearing rooms, and the one side that described fixing bottom-plate presses close to " convex " font movable axis is also inwardly provided with some pressure-bearing rooms;
Described fixing bottom-plate is also provided with filler opening, and described filler opening is all connected with each pressure-bearing room.
2. T-shaped fluid bearing according to claim 1, is characterized in that: described fixed panel is divided into the first fixed plate and the second fixed plate, and the protruding structure of described " convex " font movable axis is arranged between described first fixed plate and the second fixed plate.
3. T-shaped fluid bearing according to claim 1, is characterized in that: the pressure-bearing room on described fixed panel and the pressure-bearing room one_to_one corresponding on fixing bottom-plate.
4. T-shaped fluid bearing according to claim 3, is characterized in that: the cross section of described pressure-bearing room is semi-circular, rectangle, I shape or cross.
5. T-shaped fluid bearing according to claim 4, is characterized in that: the cross section of described pressure-bearing room is I shape.
6. T-shaped fluid bearing according to claim 1, is characterized in that: described each pressure-bearing room is equipped with pressure-bearing chamber inlet, and described pressure-bearing chamber inlet place is provided with flow controller, and described filler opening connects pressure-bearing chamber interior by each flow controller.
7. T-shaped fluid bearing according to claim 1, is characterized in that: described fixed panel outer surface is provided with some mounting holes, and the end face of the protruding structure of described " convex " font movable axis is provided with some mounting holes.
8. the T-shaped fluid bearing according to any one of claim 1-7, it is characterized in that: described " convex " font movable axis and be covered with high pressure oil between fixed panel and fixing bottom-plate, described high pressure oil enters each pressure-bearing room by filler opening, and sprays towards the direction of " convex " font movable axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816474.3A CN104500569A (en) | 2014-12-23 | 2014-12-23 | T-shaped hydraulic bearing of single restraint DOF |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816474.3A CN104500569A (en) | 2014-12-23 | 2014-12-23 | T-shaped hydraulic bearing of single restraint DOF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500569A true CN104500569A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410816474.3A Pending CN104500569A (en) | 2014-12-23 | 2014-12-23 | T-shaped hydraulic bearing of single restraint DOF |
Country Status (1)
| Country | Link |
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| CN (1) | CN104500569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443577A (en) * | 2015-12-27 | 2016-03-30 | 天津尚吉液压设备有限公司 | Two-degree-of-freedom T-shaped hydraulic bearing |
| CN108071677A (en) * | 2018-01-31 | 2018-05-25 | 江苏工大金凯高端装备制造有限公司 | A kind of air-float guide rail |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447840A (en) * | 1966-07-15 | 1969-06-03 | Bendix Corp | Bearing means |
| CN1685167A (en) * | 2002-08-30 | 2005-10-19 | 哈丁公司 | Hydrostatic bearing for linear motion guidance |
| JP2007071293A (en) * | 2005-09-07 | 2007-03-22 | Nsk Ltd | Guide device |
| JP2009236178A (en) * | 2008-03-26 | 2009-10-15 | Kyocera Corp | Traveling device |
| CN102650319A (en) * | 2012-03-13 | 2012-08-29 | 杜建军 | Fluid static pressure bearing |
| CN103089813A (en) * | 2011-10-28 | 2013-05-08 | 株式会社捷太格特 | Variable flow-rate hydrostatic bearing |
| CN204533204U (en) * | 2014-12-23 | 2015-08-05 | 天津尚吉液压设备有限公司 | The T-shaped fluid bearing of constraint degrees of freedom |
-
2014
- 2014-12-23 CN CN201410816474.3A patent/CN104500569A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447840A (en) * | 1966-07-15 | 1969-06-03 | Bendix Corp | Bearing means |
| CN1685167A (en) * | 2002-08-30 | 2005-10-19 | 哈丁公司 | Hydrostatic bearing for linear motion guidance |
| JP2007071293A (en) * | 2005-09-07 | 2007-03-22 | Nsk Ltd | Guide device |
| JP2009236178A (en) * | 2008-03-26 | 2009-10-15 | Kyocera Corp | Traveling device |
| CN103089813A (en) * | 2011-10-28 | 2013-05-08 | 株式会社捷太格特 | Variable flow-rate hydrostatic bearing |
| CN102650319A (en) * | 2012-03-13 | 2012-08-29 | 杜建军 | Fluid static pressure bearing |
| CN204533204U (en) * | 2014-12-23 | 2015-08-05 | 天津尚吉液压设备有限公司 | The T-shaped fluid bearing of constraint degrees of freedom |
Non-Patent Citations (1)
| Title |
|---|
| 赵玉梅: "静压导轨在重型机床设计中的引用", 《陶瓷研究与职业教育》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443577A (en) * | 2015-12-27 | 2016-03-30 | 天津尚吉液压设备有限公司 | Two-degree-of-freedom T-shaped hydraulic bearing |
| CN108071677A (en) * | 2018-01-31 | 2018-05-25 | 江苏工大金凯高端装备制造有限公司 | A kind of air-float guide rail |
| CN108071677B (en) * | 2018-01-31 | 2024-02-27 | 江苏工大金凯高端装备制造有限公司 | Air supporting guide rail |
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Application publication date: 20150408 |