CN201152812Y - Radial directional hydrodynamic-hydrostatic gas bearing experiment bench - Google Patents
Radial directional hydrodynamic-hydrostatic gas bearing experiment bench Download PDFInfo
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- CN201152812Y CN201152812Y CNU2008200280106U CN200820028010U CN201152812Y CN 201152812 Y CN201152812 Y CN 201152812Y CN U2008200280106 U CNU2008200280106 U CN U2008200280106U CN 200820028010 U CN200820028010 U CN 200820028010U CN 201152812 Y CN201152812 Y CN 201152812Y
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Abstract
The utility model relates to the technical field of experimental equipment, in particular to a radial aerodynamic/aerostatic gas bearing experimental table. The experimental table overcomes the defects existing in the prior art that the gas interspace pressure in the circumferential upflow field of a high-speed spindle cannot be precisely measured out, and the continuous value of the gas interspace pressure also cannot be precisely measured out. The provided technical proposal has the details that the radial aerodynamic/aerostatic gas bearing experimental table comprises a base, testing mainshafts and a testing bearing fixedly connected with the base, the testing bearing is circumferentially provided with an air entraining hole, and the testing mainshafts on the outer sides of the two end faces of the testing bearing are respectively provided with a loading bearing; a triangular force-adjusting rack is respectively arranged on planes at the outer sides of the two end faces of the testing bearing and parallel to the end faces, the triangular force-adjusting racks are fixedly connected with the base 1, each triangular force-adjusting rack is composed of three holding poles, a guide sleeve, a force-adjusting screw rod, a tension sensor and an extension spring, and the included angles of the holding poles are 60 DEG.
Description
Technical field:
The utility model relates to the experimental facilities technical field, is specifically related to a kind of radially dynamical and static pressure gas bearing test platform.
Background technology:
At present, major part is dynamical and static pressure gas bearing test platform when inner gas film pressure distributes in the circumferential flow field of measurement gas main shaft radially, usually adopt counterweight that main shaft is applied bearing capacity, sensor installation on main shaft, this scheme mainly is used in bearing and is under the not high situation of static state or the speed of mainshaft, measured signal on the rotating spindle simultaneously is not easy to output, can destroy the duty of main shaft with brush output.Another scheme is to apply bearing capacity on bearing, and at n sensor of upwards continuous installation of bearing week, it is applicable to the occasion of main shaft high speed rotating, but can't measure the successive value of gas film pressure equally, simultaneously, upwards processing a lot of holes bearing week and gauge head is installed, this itself has destroyed the pressure distribution in flow field, bearing clearance, measured is not actual gas film pressure value, and measurement data is inaccurate.
Summary of the invention:
The utility model will provide a kind of radially dynamical and static pressure gas bearing test platform, circumferentially goes up the inner gas film pressure in flow field so that overcome the high-speed main spindle of can not accurately measuring of prior art existence, more can not accurately measure the problem of the successive value of gas film pressure.
For overcoming the problem that prior art exists, technical solution of the present utility model is: a kind of radially dynamical and static pressure gas bearing test platform, comprise base 1, test main shaft 3 and the test bearing 2 that is fixedly connected with base 1, test bearing 2 circumferentially is provided with the bleed hole, and its special character is: respectively be provided with a load bearings 9 on the test main shaft 3 in 2 two end face outsides of test bearing; On two end faces outside of test bearing 2, the plane parallel, respectively be provided with a triangle accent power frame with end face, triangle transfers power frame and base 1 to be fixedly connected, triangle transfers the power frame to be made up of three pole 4, orienting sleeve 5, accent power screw rod 6, pulling force sensor 7 and extension springs 8 that are mutually 60 degree angles, described orienting sleeve 5 is arranged at the junction of pole 4, in orienting sleeve 5, be provided with accent power screw rod 6, this transfers power screw rod 6 to connect with extension spring 8 by pulling force sensor 7, and three extension springs 8 are mutually 120 ° and connect with load bearings 9; The bleed hole is provided with one.
Above-mentioned accent power screw rod 6 and orienting sleeve 5 thread connection.
Compared with prior art, the utility model has the advantages that:
1, transfer the such charger of power frame by triangle, can utilize load bearings that the test main shaft is carried out arbitrarily angled loading in the tripod plane, physical construction is simple, and does not destroy the fluid field pressure distribution situation, is applicable to main shaft low speed, occasion at a high speed; By load bearings is installed in the test bearing left and right sides, utilize gaseous tension that the test main shaft is applied bearing capacity, axial perturbed force can be eliminated, and circumferential unbalance loading experiment can be carried out.
2, applied widely: as not only can accurately to measure high-speed main spindle and circumferentially go up the inner gas film pressure in flow field, obtain the inner gas film pressure value in upwards continuous accurately flow field of gas main shaft week; Can also finish the accurate measurement under low speed, the static condition; When system works, utilize industrial computer to gather each sensor gained data simultaneously, also can finish measurement correlatives such as the speed of mainshaft, gas flow, bearing capacity, air film gaps.
Description of drawings:
Fig. 1 is a dynamical and static pressure gas bearing test platform front view radially.
Fig. 2 is the A-A view of Fig. 1.
Description of reference numerals is as follows:
1. base, 2. test bearing, 3. test main shaft, 4. pole, 5. orienting sleeve is 6. transferred the power screw rod, 7. pulling force sensor, 8. extension spring, 9. load bearings, 10. support, 11. bearings.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further specified.
Referring to Fig. 1, Fig. 2.A kind of radially dynamical and static pressure gas bearing test platform comprises base 1, test main shaft 3 and test bearing 2, and test bearing 2 is fixedly connected by support 10 and base 1, and test bearing 2 circumferentially is provided with a bleed hole.Respectively be provided with a load bearings 9 on the test main shaft 3 in 2 two end face outsides of said test bearing; On two end faces outside of test bearing 2, the plane parallel, respectively be provided with a triangle accent power frame with end face.Said triangle transfers the power frame to comprise three pole 4, orienting sleeve 5, accent power screw rod 6, pulling force sensor 7 and extension springs 8 that are mutually 60 degree angles, described orienting sleeve 5 is arranged at the junction of pole 4, in orienting sleeve 5, be provided with the accent power screw rod 6 of thread connection with it, this transfers power screw rod 6 to connect with extension spring 8 by pulling force sensor 7, and three extension springs 8 are mutually 120 ° and connect with load bearings 9.Triangle transfers a pole 4 in the power frame to be horizontally disposed with, and is fixedly connected by bearing 11 and base 1.
Utilize this device, the experiment content that can carry out comprises:
(1) transfers the power frame by the triangle of regulating test main shaft two ends simultaneously, apply certain bearing capacity for the test main shaft.Power end drives test main shaft 3 high speed rotating in test bearing 2, utilize industrial computer to gather each sensor gained data, so that obtain correlation parameters such as the speed of mainshaft, gas film pressure, gas flow, bearing capacity, air film gap, gas bearing carried out performance evaluation.
(2) triangle is transferred in the power frame, change the size of extension spring 8 pulling force, just can change the size that three extension springs 8 are made a concerted effort, utilize industrial computer from pulling force sensor 7, to gather the sizes values of loading force in real time, thereby realization load bearings 9 in transferring power frame plane, triangle is carried out arbitrarily angled loading to test main shaft 3 by air film.Test bearing 2 circumferentially is provided with a bleed hole, by the air pressure fairlead, link to each other with the teletransmission pressure transducer of peripheral hardware, the gas film pressure value at aperture position place can be read by the teletransmission tensimeter in the bearing clearance, the inner gas film pressure in flow field at certain some place that makes progress in week in the time of also just can accurately measuring main shaft static state, high low speed rotation.
(3) the bleed hole is connected with the teletransmission pressure transducer by the air pressure fairlead, earlier read an initial gas film pressure value from the teletransmission pressure transducer, fixing load bearings 9 then, regulate the accent power screw rod 6 on the triangle accent power frame, make loading force main shaft week upwards change the θ angle in test, and do not change the size of loading force, the gas film pressure value that obtain from the teletransmission pressure transducer this moment is the gas film pressure value apart from θ angle, initial measured place, repeat above-mentioned steps, change loading force in the direction that test makes progress in main shaft week, just can accurately obtain to test the inner gas film pressure value in the continuous flow field that makes progress in main shaft week.
Claims (2)
1, a kind of radially dynamical and static pressure gas bearing test platform, comprise base (1), test main shaft (3) and the test bearing (2) that is fixedly connected with base (1), test bearing (2) circumferentially is provided with the bleed hole, it is characterized in that: respectively be provided with a load bearings (9) on the test main shaft (3) in (2) two end face outsides of test bearing; Two end face outsides in test bearing (2), respectively be provided with a triangle on the plane parallel and transfer the power frame with end face, triangle transfers power frame and base (1) to be fixedly connected, triangle transfers the power frame by three poles (4) that are mutually 60 degree angles, orienting sleeve (5), accent power screw rod (6), pulling force sensor (7) and extension spring (8) are formed, described orienting sleeve (5) is arranged at the junction of pole (4), in orienting sleeve (5), be provided with accent power screw rod (6), this transfers power screw rod (6) to connect with extension spring (8) by pulling force sensor (7), and three extension springs (8) are mutually 120 ° and connect with load bearings (9); The bleed hole is provided with one.
2, radially dynamical and static pressure gas bearing test platform as claimed in claim 1 is characterized in that: described accent power screw rod (6) and orienting sleeve (5) thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280106U CN201152812Y (en) | 2008-01-02 | 2008-01-02 | Radial directional hydrodynamic-hydrostatic gas bearing experiment bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200280106U CN201152812Y (en) | 2008-01-02 | 2008-01-02 | Radial directional hydrodynamic-hydrostatic gas bearing experiment bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152812Y true CN201152812Y (en) | 2008-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200280106U Expired - Fee Related CN201152812Y (en) | 2008-01-02 | 2008-01-02 | Radial directional hydrodynamic-hydrostatic gas bearing experiment bench |
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| CN (1) | CN201152812Y (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701870B (en) * | 2009-11-03 | 2011-05-11 | 上海大学 | Spindle unit of bearing detecting device |
| CN102455249A (en) * | 2010-11-03 | 2012-05-16 | 上海微电子装备有限公司 | Stiffness testing device for gas bearing |
| CN102564751A (en) * | 2011-12-28 | 2012-07-11 | 浙江工业职业技术学院 | Marine towing triangle plate tensile test device |
| CN102620935A (en) * | 2012-04-10 | 2012-08-01 | 洛阳轴研科技股份有限公司 | Loading device of high-speed bearing tester |
| CN102636348A (en) * | 2012-04-10 | 2012-08-15 | 洛阳轴研科技股份有限公司 | High speed bearing tester |
| CN103543013A (en) * | 2013-10-17 | 2014-01-29 | 华中科技大学 | Static-pressure axial-radial loading mechanism |
| CN103558028A (en) * | 2013-11-19 | 2014-02-05 | 哈尔滨工业大学 | Bearing spatial location adjusting device for testing radial gas foil bearing performance |
| CN104568440A (en) * | 2014-12-30 | 2015-04-29 | 中国计量学院 | Device for detecting performance of static pressure gas bearing in vacuum environment and using method thereof |
| CN105729243A (en) * | 2016-04-27 | 2016-07-06 | 成都飞机工业（集团）有限责任公司 | Dynamic precision detection system with load |
| CN105928705A (en) * | 2016-04-22 | 2016-09-07 | 中国科学院光电技术研究所 | Air film performance detection device capable of being locked universally |
| CN108051214A (en) * | 2018-01-15 | 2018-05-18 | 佛山特博科技有限公司 | A kind of foil dynamical pressure air journal bearing is performance test bed |
| CN108225655A (en) * | 2017-12-22 | 2018-06-29 | 河南科技大学 | A kind of dynamical and static pressure gas bearing dynamic gas film pressure test device and test method |
| CN108303256A (en) * | 2018-01-31 | 2018-07-20 | 西安工业大学 | Three-point mount formula circumference radial loaded and test device |
| CN108426712A (en) * | 2018-01-31 | 2018-08-21 | 西安工业大学 | Wholecircle circumferentially slides radial test and loading device |
-
2008
- 2008-01-02 CN CNU2008200280106U patent/CN201152812Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101701870B (en) * | 2009-11-03 | 2011-05-11 | 上海大学 | Spindle unit of bearing detecting device |
| CN102455249A (en) * | 2010-11-03 | 2012-05-16 | 上海微电子装备有限公司 | Stiffness testing device for gas bearing |
| CN102455249B (en) * | 2010-11-03 | 2014-02-19 | 上海微电子装备有限公司 | Stiffness testing device for gas bearing |
| CN102564751B (en) * | 2011-12-28 | 2014-07-02 | 浙江工业职业技术学院 | Marine towing triangle plate tensile test device |
| CN102564751A (en) * | 2011-12-28 | 2012-07-11 | 浙江工业职业技术学院 | Marine towing triangle plate tensile test device |
| CN102620935A (en) * | 2012-04-10 | 2012-08-01 | 洛阳轴研科技股份有限公司 | Loading device of high-speed bearing tester |
| CN102636348A (en) * | 2012-04-10 | 2012-08-15 | 洛阳轴研科技股份有限公司 | High speed bearing tester |
| CN102636348B (en) * | 2012-04-10 | 2015-07-15 | 洛阳轴研科技股份有限公司 | High speed bearing tester |
| CN103543013A (en) * | 2013-10-17 | 2014-01-29 | 华中科技大学 | Static-pressure axial-radial loading mechanism |
| CN103543013B (en) * | 2013-10-17 | 2015-12-02 | 华中科技大学 | A kind of static pressure Axial and radial load maintainer |
| CN103558028A (en) * | 2013-11-19 | 2014-02-05 | 哈尔滨工业大学 | Bearing spatial location adjusting device for testing radial gas foil bearing performance |
| CN104568440A (en) * | 2014-12-30 | 2015-04-29 | 中国计量学院 | Device for detecting performance of static pressure gas bearing in vacuum environment and using method thereof |
| CN104568440B (en) * | 2014-12-30 | 2017-04-05 | 中国计量学院 | The device for detecting performance and its using method of hydrostatic gas-lubricated bearing under a kind of vacuum environment |
| CN105928705A (en) * | 2016-04-22 | 2016-09-07 | 中国科学院光电技术研究所 | Air film performance detection device capable of being locked universally |
| CN105928705B (en) * | 2016-04-22 | 2018-06-01 | 中国科学院光电技术研究所 | Air film performance detection device capable of being locked universally |
| CN105729243A (en) * | 2016-04-27 | 2016-07-06 | 成都飞机工业（集团）有限责任公司 | Dynamic precision detection system with load |
| CN108225655A (en) * | 2017-12-22 | 2018-06-29 | 河南科技大学 | A kind of dynamical and static pressure gas bearing dynamic gas film pressure test device and test method |
| CN108051214A (en) * | 2018-01-15 | 2018-05-18 | 佛山特博科技有限公司 | A kind of foil dynamical pressure air journal bearing is performance test bed |
| CN108303256A (en) * | 2018-01-31 | 2018-07-20 | 西安工业大学 | Three-point mount formula circumference radial loaded and test device |
| CN108426712A (en) * | 2018-01-31 | 2018-08-21 | 西安工业大学 | Wholecircle circumferentially slides radial test and loading device |
| CN108426712B (en) * | 2018-01-31 | 2024-03-08 | 西安工业大学 | Full circumferential sliding radial testing and loading device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20100202 |