CN105139742A - Triaxial air floating table synchronous lifting and safety protection device - Google Patents
Triaxial air floating table synchronous lifting and safety protection device Download PDFInfo
- Publication number
- CN105139742A CN105139742A CN201510610767.0A CN201510610767A CN105139742A CN 105139742 A CN105139742 A CN 105139742A CN 201510610767 A CN201510610767 A CN 201510610767A CN 105139742 A CN105139742 A CN 105139742A
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- synchronous
- bevel gear
- piston rod
- jack
- synchronous jack
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
Abstract
The invention provides a triaxial air floating table synchronous lifting and safety protection device. The protection device comprises a driving motor, a reducer, a bevel gear drive mechanism, a synchronous jack, a locking screw, an equal-height adjusting mechanism, a positioning plate, a supporting ring, a piston rod, a hydraulic driving device and a hydraulic cylinder. The positioning plate is installed on the lower end face of a work bench. The supporting ring is connected with the piston rod. The piston rod is installed in the hydraulic cylinder. The hydraulic driving device is connected with the hydraulic cylinder. During work, the driving motor drives the synchronous jack via the bevel gear drive mechanism, thereby achieving synchronous rising and descending; after being adjusted in the equal height via the equal height adjusting mechanism, the synchronous jack is locked by the locking screw; and when an accident occur, an air floating ball is quickly supported up by the supporting ring, and the synchronous jack is raised up to hold the whole work bench. The protection device is advantaged by simple principle, high precision and easy engineering realization.
Description
Technical field
The present invention relates to measuring technique, is exactly three-axis air-bearing table synchronous lifting and safety guard specifically.
Background technology
Ground simulation technology has great importance in the development process of spacecraft, and three-axis air-bearing table is as the nucleus equipment of full physical simulation, and a gordian technique in use procedure is exactly high-precise synchronization lifting/decline that air supporting platform debugs in process.The air film that three-axis air-bearing table relies on pressurized air to be formed between air-bearing and bearing seat, simulation stage body is floated, thus realize approximate friction free relative motion condition, with the virtual space aircraft mechanical environment that disturbance torque is very little suffered by outer space, its air-floating ball bearing development cost is high, the cycle is long, very careful in using.
Find through searching document, build a kind of satellite dynamics and control distributed digital emulation platform in Chinese invention patent (application number 201010544722.5) title " satellite dynamics and control Distributed Simulation Platform ", realize " flexibility " design of different task satellite control system.
(be published in " control engineering " at document " Large-scale satellite three-axis air-bearing table full physical simulation system "; calendar year 2001; 3rd phase, the page number: 736-741) in give the realization of three-axis air-bearing table full physical simulation system, but do not provide air floating table anti-guard method of falling from power.
Summary of the invention
The object of the present invention is to provide a kind of three-axis air-bearing table synchronous lifting and safety guard, have that moment is large, precision advantages of higher.
The present invention is achieved by the following technical solutions:
A kind of three-axis air-bearing table synchronous lifting and safety guard, comprise drive motor, speed reduction unit, bevel gear transmission, synchronous jack, set nut, contour governor motion, location-plate, filler ring, piston rod, fluid pressure drive device and hydraulic cylinder; Drive motor output shaft is connected with speed reduction unit input end, speed reduction unit output terminal is connected with bevel gear transmission, bevel gear transmission is connected with synchronous jack, set nut and contour governor motion are arranged on above the expansion link of synchronous jack, location-plate is arranged on worktable lower surface, filler ring is connected with piston rod, and piston rod is arranged in hydraulic cylinder, and fluid pressure drive device is connected with hydraulic cylinder; During work, drive motor drives synchronous jack by bevel gear transmission, realizes synchronization lifting, locks after synchronous jack is contour by contour governor motion adjustment with set nut again; When something unexpected happened, fluid pressure drive device hydraulic control cylinder, is held up air floatation ball rapidly by filler ring, more whole worktable is steadily caught in synchronous jack rising.
The features and advantages of the invention are: the present invention realizes three synchronous jack by motor and drives, and utilizes filler ring to guarantee the safety of air floatation ball, have that principle is simple, precision is high, be convenient to the advantages such as Project Realization.
Accompanying drawing explanation
Fig. 1 is three-axis air-bearing table synchronous lifting and safety guard structural representation;
Fig. 2 is fluid pressure drive device principle schematic;
Embodiment
Below in conjunction with accompanying drawing citing, the invention will be further described.
Embodiment 1
Composition graphs 1, a kind of three-axis air-bearing table synchronous lifting and safety guard, comprise drive motor 1, speed reduction unit 2, bevel gear transmission 3, synchronous jack 4, set nut 5, contour governor motion 6, location-plate 7, filler ring 8, piston rod 9, fluid pressure drive device 10 and hydraulic cylinder 11; It is characterized in that, drive motor 1 output shaft is connected with speed reduction unit 2 input end, speed reduction unit 2 output terminal is connected with bevel gear transmission 3, bevel gear transmission 3 is connected with synchronous jack 4, set nut 5 and contour governor motion 6 are arranged on above the expansion link of synchronous jack 4, and location-plate 7 is arranged on worktable lower surface, and filler ring 8 is connected with piston rod 9, piston rod 9 is arranged in hydraulic cylinder 11, and fluid pressure drive device 10 is connected with hydraulic cylinder 11; During work, drive motor 1 drives synchronous jack 4 by bevel gear transmission 3, realizes synchronization lifting, synchronous jack 4 by contour governor motion 6 adjust contour after lock with set nut 5 again, with prevent loosen produce height error; Filler ring 8 is manufactured by nickel alloy, anticorrosive, and its hardness is less than air floatation ball, and comparatively large with air floatation ball contact area, does not damage to protect air floatation ball; Air-bearing holds up protective device, adopts hydraulic system to realize, has the advantages such as stability is high, moment is large.
Embodiment 2
In three-axis air-bearing table test, when something unexpected happened, as: fall from power in experiment, suddenly power-off, air supply system fault and take off or air floatation ball be installed time, in order to avoid air floatation ball and ball bearing damage, all need air floatation ball to hold up, itself and ball bearing departed from.For this reason, adopt HYDRAULIC CONTROL SYSTEM hydraulic cylinder, by filler ring, spheroid held up rapidly, and then synchronous jack is raised steadily catch whole worktable.Equally, when air supporting spheroid is loaded ball bearing, first put within filler ring by spheroid, hydraulic system makes filler ring slowly decline again, is accurately put among ball bearing by spheroid.
The driving of synchronous jack adopts motor to drive leg motion by speed reduction unit and bevel gear mechanism, adopts frequency control scheme, can be arranged to quick, slow-action fast mode according to actual needs.Transmission portion is that the method for conical gear universal coupling solves, require that conical gear machining precision is high, to reduce noise, the manual adjusting device that has of lifting jack head can realize its hoisting depth unanimously, and location-plate its surface of contact after lapping-in at three 110 ° of angles of lifting jack head 110 ° of angles and worktable should be not less than 98%.
Embodiment 3
Composition graphs 2, illustrates the principle of work of fluid pressure drive device.Fluid pressure drive device by storing oil sump 12, hydraulic pump 13, retaining valve 14, surplus valve 15, tensimeter 16, adjustable throttling 17, solenoid valve 3DT18, solenoid valve 1DT19, O type three position four-way directional control valve 20, solenoid valve 2DT22, composition such as bi-bit bi-pass 23 grade.
Air floatation ball filler ring protective device, adopts hydraulic system to realize, and the operation program that it holds up (or decline) is in shown in table 1.
The list of table 1 operation program
| 1 D T | 2 D T | 3 D T | |
| Jack-up | + | - | - |
| Decline | - | + | - |
| Stop | - | - | - |
| Quick picking-up | + | - | + |
1) three position four-way directional control valve, controls the upper and lower motion of cylinder piston rod;
2) the upper and lower movement velocity of piston rod is by adjustable valve regulation;
3) if need to hold up spheroid fast, 3DT power-off (or manual control) can be made, make two position two-way valve 23 form path, realize holding up action fast;
4) air floatation ball hydraulic pressure picking-up protective device can link with the air supply system of air floating table, with satisfied: under suspending experiment, the suddenly unexpected situation such as power-off, gas decompression, automatic picking-up air floatation ball body, protection ball bearing.
Claims (1)
1. three-axis air-bearing table synchronous lifting and a safety guard, comprises drive motor (1), speed reduction unit (2), bevel gear transmission (3), synchronous jack (4), set nut (5), contour governor motion (6), location-plate (7), filler ring (8), piston rod (9), fluid pressure drive device (10) and hydraulic cylinder (11), drive motor (1) output shaft is connected with speed reduction unit (2) input end, it is characterized in that, speed reduction unit (2) output terminal is connected with bevel gear transmission (3), bevel gear transmission (3) is connected with synchronous jack (4), set nut (5) and contour governor motion (6) are arranged on above the expansion link of synchronous jack (4), location-plate (7) is arranged on worktable lower surface, filler ring (8) is connected with piston rod (9), piston rod (9) is arranged in hydraulic cylinder (11), fluid pressure drive device (10) is connected with hydraulic cylinder (11), during work, drive motor (1) drives synchronous jack (4) by bevel gear transmission (3), realize synchronization lifting, synchronous jack (4) by contour governor motion (6) adjust contour after use set nut (5) to lock again, when something unexpected happened, fluid pressure drive device (10) hydraulic control cylinder (11), is held up air floatation ball rapidly by filler ring (8), more whole worktable is steadily caught in synchronous jack (4) rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610767.0A CN105139742B (en) | 2015-09-17 | 2015-09-17 | Three-axis air-bearing table synchronous lifting and safety guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510610767.0A CN105139742B (en) | 2015-09-17 | 2015-09-17 | Three-axis air-bearing table synchronous lifting and safety guard |
Publications (2)
| Publication Number | Publication Date |
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| CN105139742A true CN105139742A (en) | 2015-12-09 |
| CN105139742B CN105139742B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510610767.0A Active CN105139742B (en) | 2015-09-17 | 2015-09-17 | Three-axis air-bearing table synchronous lifting and safety guard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783322A (en) * | 2023-02-06 | 2023-03-14 | 湖南揽月机电科技有限公司 | Pneumatic protection equipment of three-axis air bearing table and working method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100224203B1 (en) * | 1996-12-17 | 1999-10-15 | 정몽규 | Educational model set |
| JP2006119443A (en) * | 2004-10-22 | 2006-05-11 | Eiji Tominaga | Air floating rotary apparatus |
| CN102522020A (en) * | 2011-11-10 | 2012-06-27 | 北京交通大学 | Device for training and detecting extravehicular operation capability |
| CN103514792A (en) * | 2013-10-10 | 2014-01-15 | 南京航空航天大学 | Space six-freedom-degree air floatation follow-up moving platform |
| CN103713653A (en) * | 2013-12-06 | 2014-04-09 | 杭州电子科技大学 | Air floatation ball control experimental system and measuring method |
| CN104200715A (en) * | 2014-09-23 | 2014-12-10 | 北京控制工程研究所 | Spacecraft flying-around approach motion simulator |
-
2015
- 2015-09-17 CN CN201510610767.0A patent/CN105139742B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100224203B1 (en) * | 1996-12-17 | 1999-10-15 | 정몽규 | Educational model set |
| JP2006119443A (en) * | 2004-10-22 | 2006-05-11 | Eiji Tominaga | Air floating rotary apparatus |
| CN102522020A (en) * | 2011-11-10 | 2012-06-27 | 北京交通大学 | Device for training and detecting extravehicular operation capability |
| CN103514792A (en) * | 2013-10-10 | 2014-01-15 | 南京航空航天大学 | Space six-freedom-degree air floatation follow-up moving platform |
| CN103713653A (en) * | 2013-12-06 | 2014-04-09 | 杭州电子科技大学 | Air floatation ball control experimental system and measuring method |
| CN104200715A (en) * | 2014-09-23 | 2014-12-10 | 北京控制工程研究所 | Spacecraft flying-around approach motion simulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115783322A (en) * | 2023-02-06 | 2023-03-14 | 湖南揽月机电科技有限公司 | Pneumatic protection equipment of three-axis air bearing table and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105139742B (en) | 2017-07-28 |
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