CN103089761A - Method and device for magnetic suspension control moment gyroscope repeatable locking - Google Patents
Method and device for magnetic suspension control moment gyroscope repeatable locking Download PDFInfo
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- CN103089761A CN103089761A CN2012105901787A CN201210590178A CN103089761A CN 103089761 A CN103089761 A CN 103089761A CN 2012105901787 A CN2012105901787 A CN 2012105901787A CN 201210590178 A CN201210590178 A CN 201210590178A CN 103089761 A CN103089761 A CN 103089761A
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- magnetic suspension
- suspension control
- air bag
- flywheel rotor
- bag cavity
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Abstract
The invention discloses a method and a device for magnetic suspension control moment gyroscope repeatable locking. The device comprises a gyroscope case component (1), protective bearing components (2A and 2B), a sealed metal airbag cavity (3) and an inflation and deflation system (4). According to the method and the device, the structure that high-pressure gas is filled into a metal thin shell is utilized, power is generated through changes of gas pressure, displacement is generated through elastic deformation of a bellows, an axial gap between a flywheel rotor and the gyroscope case component can be directly eliminated, the flywheel rotor is connected with the gyroscope case component into a whole, and the result that the flywheel rotor is locked is achieved.
Description
Technical field
The present invention relates to the Spacecraft Attitude Control technical field, particularly a kind of aerodynamic force type magnetic suspension control torque gyroscope is with repeating locking method and device.
Background technique
Magnetic suspension control torque gyroscope is the attitude control actuator of Large Spacecraft, the main stable suspersion that relies on magnetic bearing to make flywheel rotor, and magnetic bearing relies on magnetic gap to reach the magnetic property of expection, so certainly exists certain gap between flywheel rotor and rotor case.In order to protect magnetic bearing, magnetic suspension control torque gyroscope has designed the protection bearing, and flywheel rotor exists nutating, whirling motion, precession when High Rotation Speed, in order to ensure the normal operation of flywheel rotor, also has certain gap between flywheel rotor and protection bearing.In magnetic suspension control torque gyroscope lift-off and ground transport, process of the test, inevitably there are vibration, impact etc., therefore flywheel rotor must be locked in said process, and when the magnetic suspension control torque gyroscope working state, locking device must can be in time, safe, release reliably, and can not affect the normal operation of flywheel rotor.
For the flywheel rotor under off working state is locked, the electricity that a large amount of researchers have designed the various ways structure drives locking mechanism.Wherein, a kind of structure is by motor driving, and by mechanical transmission, the driving mechanical lock fork is with the device of flywheel rotor locking.Inevitably there is mechanical wear in the locking device of this type owing to adopting gear, turbine, connecting rod etc. to have the mechanical transmission of movable part between the driving mechanism part, easily produce fifth wheel, even produces the gap, causes locking to lose efficacy.What another was commonly used is electromagnetic locking device, utilizes electromagnet that flywheel rotor is held, and then flywheel rotor is locked.For the flywheel rotor with large quality sucks, the electromagnet of the locking device of this type can produce very high magnetic induction intensity usually, and volume is larger, and quality is heavy, and can produce interference to the magnetic field of magnetic suspension control torque gyroscope itself.
Summary of the invention
The objective of the invention is, overcome the deficiencies in the prior art, provide a kind of magnetic suspension control torque gyroscope can repeat locking method and device.
Technological scheme of the present invention is: a kind of magnetic suspension control torque gyroscope can repeat locking method, comprises the following steps:
1, with inner corrugated pipe and outward corrugated tube coaxial welding between thrust disc and lower flange, form closed metal air bag cavity;
2, in the bottom of metal bellows cavity, connect inflating-pressure releasing system, the metal bellows after welding and air exhaust nozzle connection part by the sealed type air exhaust nozzle;
3, closed metal air bag cavity is positioned over below magnetic suspension control torque gyroscope flywheel rotor inner edge radially inner side, and is fixed on the rotor case assembly;
4, open inflating-pressure releasing system and make pressurized gas enter closed metal air bag cavity, the bellows elongation of closed metal air bag cavity, the fitting surface of the conical surface automatic capturing flywheel rotor of thrust disc, and hold out against flywheel rotor to the protection bearing;
5, close the valve of inflating-pressure releasing system, stop air feed.
Method of the present invention is further comprising the steps of: during release, opens inflating-pressure releasing system and discharges pressurized gas, and bellows contract, thrust disc leaves flywheel rotor, and finally returns to raw footage, the flywheel rotor release.
A kind of magnetic suspension control torque gyroscope repeatable locking device of the present invention comprises the rotor case assembly, protection bearing, closed metal air bag cavity and inflating-pressure releasing system; Closed metal air bag cavity comprises lower flange, outward corrugated tube, thrust disc, inner corrugated pipe and air exhaust nozzle; Inner corrugated pipe and outward corrugated tube coaxial welding are between thrust disc and lower flange; In the bottom of closed metal air bag cavity, connect inflating-pressure releasing system by the sealed type air exhaust nozzle; Coordinating with flywheel rotor of thrust disc, during locking, thrust disc holds out against flywheel rotor to the protection bearing, eliminates axially protection gap.
The leak rate of described closed metal air bag cavity and air exhaust nozzle connection part is less than 1 * 10
- 9Pa.m
3/ s.
Described thrust disc is cone structure, and the useful area that bears air pressure is not less than 50mm
2
Described outward corrugated tube and inner corrugated pipe be by 2～3 wave components, wall thickness 0.01～2mm, and maximal tensility is greater than 1mm in can withstand voltage scope.
Described closed metal air bag cavity withstand voltage greater than 2atm.
The present invention's beneficial effect compared with prior art is:
(1) utilization of the present invention is filled with the structure of pressurized gas in metal thin shell, variation by air pressure produces power, utilize the elastic strain of bellows to produce displacement, can directly eliminate the axial clearance between flywheel rotor and rotor case assembly, an integral body that flywheel rotor and rotor case assembly is become be connected makes flywheel rotor reach the result of locking.When bellows extended, the thrust disc of metal bellows held out against flywheel rotor, can externally produce sizable pressure in this degrees of freedom direction; And the gas of metal bellows is when emitting, and bellows returns to again original size, has realized release.And the resiliently deformable of bellows material and recovery have been realized repeatability locking and the unlocking function to the magnetic suspension control torque gyroscope flywheel rotor.
(2) critical piece in locking device of the present invention is bellows and inflating-pressure releasing system, compare with electrically driven (operated) locking device, and transmission mechanism-free, design of part is simple, and is lightweight, and the machinery-free friction can not produce fifth wheel.
(3) power source of the present invention's employing is high-pressure air, conveniently is easy to get, and is free from environmental pollution; Utilize being filled with removal of gas to realize repeating locking, simple to operate, good reproducibility; Can produce larger thrust by improving air pressure, be applicable to the coupling mechanism force demand of flywheel rotor in vibration, shock test process of large quality, can realize reliable locking.
Description of drawings
Fig. 1 is the structural representation of locking device of the present invention;
Fig. 2 is the structural representation of closed metal air bag cavity of the present invention;
Fig. 3 is inflating-pressure releasing system structural representation of the present invention.
Embodiment
A kind of magnetic suspension control torque gyroscope of the present invention can repeat locking method, comprises the following steps:
(1) with inner corrugated pipe and outward corrugated tube coaxial welding between thrust disc and lower flange, form closed metal air bag cavity, wherein the upper end of inner corrugated pipe and outward corrugated tube is welded on respectively inner circle and the outer round surface of thrust disc, and the lower end is welded on respectively inner circle and the outer round surface of lower flange.
(2) be in the bottom recesses of lower flange in the bottom of metal bellows cavity, connect inflating-pressure releasing system by the sealed type air exhaust nozzle, the metal bellows after welding and air exhaust nozzle connection part use after leak detection.
(3) closed metal air bag cavity is positioned over below magnetic suspension control torque gyroscope flywheel rotor inner edge radially inner side, and is fixed on the rotor case assembly.
(4) opening inflating-pressure releasing system makes pressurized gas enter closed metal air bag cavity; in this process; rising due to air pressure; the bellows elongation of closed metal air bag cavity; the fitting surface of the conical surface automatic capturing flywheel rotor of thrust disc; and hold out against flywheel rotor to the protection bearing, and eliminated axial protection gap, flywheel rotor is locked.
(5) close the valve of inflating-pressure releasing system, stop air feed.
During release, open inflating-pressure releasing system and discharge pressurized gas, bellows contract, thrust disc leaves flywheel rotor, and finally returns to raw footage, the flywheel rotor release.
As Fig. 1, be the structural representation of a kind of magnetic suspension control torque gyroscope repeatable locking device of the present invention, wherein, rotor case assembly 1, flywheel rotor 2, protection bearing unit 2A, 2B, closed metal air bag cavity 3 and inflating-pressure releasing system 4.
Fig. 2 is the structural representation of closed metal air bag cavity 3 in the present invention, wherein, and lower flange 31, outward corrugated tube 32, thrust disc 33, inner corrugated pipe 34, air exhaust nozzle 35.Inner corrugated pipe 34 and outward corrugated tube 32 coaxial welding are between thrust disc 33 and lower flange 31, form closed metal air bag cavity 3, wherein the upper end of inner corrugated pipe 34 and outward corrugated tube 32 is welded on respectively inner circle and the outer round surface of thrust disc 33, and the lower end of inner corrugated pipe 34 and outward corrugated tube 32 is welded on respectively inner circle and the outer round surface of lower flange 31.Inner corrugated pipe 34, outward corrugated tube 32 are the position of the main generation displacement of closed metal air bag cavity 3, thrust disc 33 fitted tightly in when locking and flywheel rotor 2, be main stressed member, lower flange 31 provides the installation positioning datum that assembles with rotor case assembly 1 for closed metal air bag cavity 3.
Be in the bottom recesses of lower flange 31 in the bottom of closed metal air bag cavity 3, connect inflating-pressure releasing system 4 by sealed type air exhaust nozzle 35, the closed metal air bag cavity 3 after welding and air exhaust nozzle 35 connection parts will use after leak detection.In the present invention, leak rate is less than 1 * 10
-9Pa.m
3/ s.
The material of outward corrugated tube 32 of the present invention and inner corrugated pipe 34 is stainless steel, by 2～3 wave components, and wall thickness 0.01～2mm, maximal tensility is greater than 1mm in can withstand voltage scope.
Closed metal air bag cavity 3 of the present invention withstand voltage greater than 2atm.
Fig. 3 is the structural representation of inflating-pressure releasing system 4 of the present invention, and inflating-pressure releasing system 4 provides supporting power source and control source for closed metal air bag cavity 3.Wherein, high-pressure air source 41, three-way valve 42, pressure gauge 43, vacuum tube 44.A passage of three-way valve 42 connects 41, one passages of high-pressure air source vacuum tube 44 Bonding pressure table 43 and air exhaust nozzle 35 successively with vacuum tube 44, and another passage is bleed valve.
Magnetic suspension control torque gyroscope repeatable locking device working procedure of the present invention is as follows:
At first, closed metal air bag cavity 3 is positioned over magnetic suspension control torque gyroscope flywheel rotor 2 inner edge radially inner sides belows, and is fixed on rotor case assembly 1.
Secondly, close the bleed valve of inflating-pressure releasing system 4, open successively valve and the pressure gage valve of three-way valve 42 high-pressure air source, make pressurized gas enter closed metal air bag cavity 3.Simultaneously, observe the force value of pressure gauge 43, when pressure meets the requirements of force value, close the pressure gage valve on triple valve 42.In gas replenishment process, due to the rising of air pressure, the elongation of the bellows of closed metal air bag cavity 3; the fitting surface of the conical surface automatic capturing flywheel rotor 2 of thrust disc 33; and hold out against flywheel rotor 2 to protection bearing 2B, eliminated axial protection gap, with flywheel rotor 2 lockings.Close the charging valve of inflating-pressure releasing system 4, stop air feed.
During release, the bleed valve of opening inflating-pressure releasing system 4 discharges pressurized gas, the bellows contract of closed metal air bag cavity 3, and thrust disc 33 leaves flywheel rotor 2, and finally returns to raw footage, flywheel rotor 2 releases.At this moment, protection bearing 2A is for the protection of flywheel rotor 2.
Magnetic suspension control torque gyroscope repeatable locking device of the present invention both had been applicable to the flywheel rotor of inner rotor core, also was applicable to the flywheel rotor of outer-rotor structure.
Above content is in conjunction with concrete preferred case study on implementation detailed description made for the present invention, can not assert that the concrete enforcement of the present invention only limits to these explanations.For those skilled in the art; without departing from the inventive concept of the premise; in the situation that do not change its function, the equivalent transformation that carries out or substitute also falls into protection scope of the present invention to each constituent elements of the present invention, position relationship and Placement.
The content of not describing in detail in specification of the present invention belongs to those skilled in the art's known technology.
Claims (7)
1. a magnetic suspension control torque gyroscope can repeat locking method, it is characterized in that comprising the following steps:
(1) with inner corrugated pipe and outward corrugated tube coaxial welding between thrust disc and lower flange, form closed metal air bag cavity;
(2) in the bottom of metal bellows cavity, connect inflating-pressure releasing system, the metal bellows after welding and air exhaust nozzle connection part by the sealed type air exhaust nozzle;
(3) closed metal air bag cavity is positioned over below magnetic suspension control torque gyroscope flywheel rotor inner edge radially inner side, and is fixed on the rotor case assembly;
(4) open inflating-pressure releasing system and make pressurized gas enter closed metal air bag cavity, the bellows elongation of closed metal air bag cavity, the fitting surface of the conical surface automatic capturing flywheel rotor of thrust disc, and hold out against flywheel rotor to the protection bearing;
(5) close the valve of inflating-pressure releasing system, stop air feed.
2. according to claim 1 a kind of magnetic suspension control torque gyroscope can repeat locking method, it is characterized in that: also comprise the release step, during release, open inflating-pressure releasing system and discharge pressurized gas, bellows contract, thrust disc leaves flywheel rotor, and finally return to raw footage, flywheel rotor release.
3. a magnetic suspension control torque gyroscope repeatable locking device, is characterized in that: comprise rotor case assembly (1), protection bearing unit (2A, 2B), closed metal air bag cavity (3) and inflating-pressure releasing system (4); Closed metal air bag cavity (3) comprises lower flange (31), outward corrugated tube (32), thrust disc (33), inner corrugated pipe (34) and air exhaust nozzle (35); Inner corrugated pipe (34) and outward corrugated tube (32) coaxial welding are between thrust disc (33) and lower flange (31); In the bottom of closed metal air bag cavity (3), connect inflating-pressure releasing system (4) by sealed type air exhaust nozzle (35); Thrust disc (33) coordinates with flywheel rotor (2), and thrust disc during locking (33) holds out against flywheel rotor (2) to protection bearing (2B), eliminates axially protection gap.
4. according to claim 3 a kind of magnetic suspension control torque gyroscope repeatable locking device is characterized in that: the leak rate of described closed metal air bag cavity (3) and air exhaust nozzle (35) connection part is less than 1 * 10
-9Pa.m
3/ s.
5. according to claim 3 a kind of magnetic suspension control torque gyroscope repeatable locking device, it is characterized in that: described thrust disc (33) is cone structure, and the useful area that bears air pressure is not less than 50mm
2
6. according to claim 3 a kind of magnetic suspension control torque gyroscope repeatable locking device, it is characterized in that: described outward corrugated tube (32) and inner corrugated pipe (34) are by 2～3 wave components, wall thickness 0.01～2mm, maximal tensility is greater than 1mm in can withstand voltage scope.
7. according to claim 3 a kind of magnetic suspension control torque gyroscope repeatable locking device is characterized in that: described closed metal air bag cavity (3) withstand voltage greater than 2atm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590178.7A CN103089761B (en) | 2012-12-26 | 2012-12-26 | A kind of magnetic suspension control torque gyroscope can repeat locking method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590178.7A CN103089761B (en) | 2012-12-26 | 2012-12-26 | A kind of magnetic suspension control torque gyroscope can repeat locking method and device |
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| Publication Number | Publication Date |
|---|---|
| CN103089761A true CN103089761A (en) | 2013-05-08 |
| CN103089761B CN103089761B (en) | 2015-08-19 |
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|---|---|---|---|
| CN201210590178.7A Active CN103089761B (en) | 2012-12-26 | 2012-12-26 | A kind of magnetic suspension control torque gyroscope can repeat locking method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828751A (en) * | 2020-07-13 | 2020-10-27 | 郝中亮 | Nano composite fiber tube |
| CN111953130A (en) * | 2019-05-15 | 2020-11-17 | 深圳市中科金朗产业研究院有限公司 | Flywheel energy storage device |
| CN117889060A (en) * | 2024-03-15 | 2024-04-16 | 凯泽未来(无锡)数字智能科技有限公司 | Low-speed stepping and high-speed servo adjustable plunger pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB192381A (en) * | 1922-01-25 | 1924-02-21 | Sperry Gyroscope Co Ltd | Improvements relating to gyroscopic compasses |
| GB476033A (en) * | 1936-06-15 | 1937-11-30 | Askania Werke Ag Centralwerkst | Improvements in or relating to gyroscopes |
| GB536495A (en) * | 1938-11-26 | 1941-05-16 | Sperry Gyroscope Co Inc | Improvements relating to gyroscopic instruments |
| WO1995001279A1 (en) * | 1993-07-02 | 1995-01-12 | Honeywell Inc. | Touchdown and launch-lock apparatus for magnetically suspended control moment gyroscope |
| CN101670891A (en) * | 2009-09-25 | 2010-03-17 | 北京航空航天大学 | Locking mechanism with repeatable and emergent compulsive unlocking function |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
-
2012
- 2012-12-26 CN CN201210590178.7A patent/CN103089761B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB192381A (en) * | 1922-01-25 | 1924-02-21 | Sperry Gyroscope Co Ltd | Improvements relating to gyroscopic compasses |
| GB476033A (en) * | 1936-06-15 | 1937-11-30 | Askania Werke Ag Centralwerkst | Improvements in or relating to gyroscopes |
| GB536495A (en) * | 1938-11-26 | 1941-05-16 | Sperry Gyroscope Co Inc | Improvements relating to gyroscopic instruments |
| WO1995001279A1 (en) * | 1993-07-02 | 1995-01-12 | Honeywell Inc. | Touchdown and launch-lock apparatus for magnetically suspended control moment gyroscope |
| CN101670891A (en) * | 2009-09-25 | 2010-03-17 | 北京航空航天大学 | Locking mechanism with repeatable and emergent compulsive unlocking function |
| CN102530268A (en) * | 2011-08-02 | 2012-07-04 | 中国人民解放军国防科学技术大学 | Air bag type flywheel locking and unlocking device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953130A (en) * | 2019-05-15 | 2020-11-17 | 深圳市中科金朗产业研究院有限公司 | Flywheel energy storage device |
| CN111953130B (en) * | 2019-05-15 | 2023-08-08 | 深圳市中科金朗产业研究院有限公司 | Flywheel energy storage device |
| CN111828751A (en) * | 2020-07-13 | 2020-10-27 | 郝中亮 | Nano composite fiber tube |
| CN111828751B (en) * | 2020-07-13 | 2022-05-13 | 郝中亮 | Nano composite fiber tube |
| CN117889060A (en) * | 2024-03-15 | 2024-04-16 | 凯泽未来(无锡)数字智能科技有限公司 | Low-speed stepping and high-speed servo adjustable plunger pump |
| CN117889060B (en) * | 2024-03-15 | 2024-05-14 | 凯泽未来(无锡)数字智能科技有限公司 | Low-speed stepping and high-speed servo adjustable plunger pump |
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|---|---|
| CN103089761B (en) | 2015-08-19 |
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Effective date of registration: 20161008 Address after: 100000, No. 3, North Road, Yongfeng industrial base, Beijing, Haidian District Patentee after: China Aerospace Times Electronics Co., Ltd. Address before: 100854 No. 50, Yongding Road, Beijing Patentee before: Beijing Xinghua Machinery Factory |
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Effective date of registration: 20190308 Address after: Room 205, 2nd floor, 6th building, 8th courtyard, Haixin Road, Daxing District, Beijing 102600 Patentee after: Beijing Aerospace Xinghua Technology Co., Ltd. Address before: No. 3 Yongjie North Road, Yongfeng Industrial Base, Haidian District, Beijing 100000 Patentee before: China Aerospace Times Electronics Co., Ltd. |
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