CN103089761B - A kind of magnetic suspension control torque gyroscope can repeat locking method and device - Google Patents
A kind of magnetic suspension control torque gyroscope can repeat locking method and device Download PDFInfo
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- CN103089761B CN103089761B CN201210590178.7A CN201210590178A CN103089761B CN 103089761 B CN103089761 B CN 103089761B CN 201210590178 A CN201210590178 A CN 201210590178A CN 103089761 B CN103089761 B CN 103089761B
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- air bag
- bag cavity
- closed metal
- flywheel rotor
- thrust disc
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Abstract
The invention discloses a kind of magnetic suspension control torque gyroscope and can repeat locking method and device, described in comprise rotor case assembly (1), protection bearing unit, closed metal air bag cavity (3) and inflating-pressure releasing system (4).The present invention utilizes the structure being filled with pressurized gas in metal thin shell, power is produced by the change of air pressure, utilize the elastic strain of bellows to produce displacement, directly can eliminate the axial clearance between flywheel rotor and rotor case assembly, entirety flywheel rotor and rotor case assembly being become be connected, makes flywheel rotor reach the result of locking.
Description
Technical field
The present invention relates to technical field of spacecraft attitude control, 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, main dependence magnetic bearing makes the stable suspersion of flywheel rotor, and magnetic bearing relies on magnetic gap to reach the magnetic property of expection, therefore certainly exist certain gap between flywheel rotor and rotor case.In order to protect magnetic bearing, magnetic suspension control torque gyroscope devises 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 there is certain gap between flywheel rotor and protection bearing.In magnetic suspension control torque gyroscope lift-off and ground transport, in process of the test, inevitable existence vibration, impact etc., therefore flywheel rotor must be locked in above process, and when magnetic suspension control torque gyroscope working state, locking device must in time, safety, reliably to unlock, and the normal work of flywheel rotor can not be affected.
In order to be locked by the flywheel rotor under off working state, a large amount of researcher devises the electric drive locking mechanism of various ways structure.Wherein, a kind of structure for be driven by motor, by mechanical transmission, the device that flywheel rotor is locked by driving mechanical lock fork.Due to the mechanical transmission adopting gear, turbine, connecting rod etc. to have movable part, inevitably there is mechanical wear, easily produce fifth wheel, even produce gap in the locking device of this type, cause locking to lose efficacy between driving mechanism part.What another was conventional is electromagnetic locking device, utilizes electromagnet to be held by flywheel rotor, and then is locked by flywheel rotor.In order to be sucked by the flywheel rotor of large quality, the electromagnet of the locking device of this type can produce very high magnetic induction intensity usually, and volume is comparatively large, quality weight, and can produce interference to the magnetic field of magnetic suspension control torque gyroscope itself.
Summary of the invention
The object 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, by 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, inflating-pressure releasing system is connected by sealed type air exhaust nozzle, the metal bellows after welding and air exhaust nozzle connection part;
3, closed metal air bag cavity is positioned over below the radially inner side of magnetic suspension control torque gyroscope flywheel rotor inner edge, and is fixed on rotor case assembly;
4, opening inflating-pressure releasing system makes pressurized gas enter closed metal air bag cavity, and the bellows of closed metal air bag cavity extends, the fitting surface of the conical surface automatic capturing flywheel rotor of thrust disc, and holds out against flywheel rotor on 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 unblock, and open inflating-pressure releasing system release pressurized gas, bellows contract, thrust disc leaves flywheel rotor, and finally returns to raw footage, and flywheel rotor unlocks.
A kind of magnetic suspension control torque gyroscope repeatable locking device of the present invention, comprises 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 sealed type 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 sealed type air exhaust nozzle; Coordinating with flywheel rotor of thrust disc, during locking, thrust disc holds out against flywheel rotor on protection bearing, eliminates axial portable protective gaps.
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 bearing air pressure is not less than 50mm
2.
Described outward corrugated tube and inner corrugated pipe are by 2 ~ 3 wave components, and wall thickness 0.01 ~ 2mm, can be greater than 1mm by maximal tensility in withstand voltage scope.
Described the withstand voltage of closed metal air bag cavity is greater than 2atm.
The present invention's beneficial effect is compared with prior art:
(1) the present invention utilizes the structure being filled with pressurized gas in metal thin shell, power is produced by the change of air pressure, utilize the elastic strain of bellows to produce displacement, directly can eliminate the axial clearance between flywheel rotor and rotor case assembly, entirety flywheel rotor and rotor case assembly being become be connected, makes flywheel rotor reach the result of locking.When bellows extends, the thrust disc of metal bellows holds out against flywheel rotor, can externally produce sizable pressure in this degrees of freedom direction; And metal bellows gas release time, bellows returns to again original size, achieves unblock.And the resiliently deformable of bellows material and recovery achieve locks and unlocking function the repeatability of magnetic suspension control torque gyroscope flywheel rotor.
(2) critical piece in locking device of the present invention is bellows and inflating-pressure releasing system, and compared with electrically driven (operated) locking device, transmission mechanism-free, design of part is simple, and lightweight, mechanical friction, can not produce fifth wheel.
(3) power source that the present invention adopts is high-pressure air, is conveniently easy to get, free from environmental pollution; Being filled with of gas is utilized to realize repeating locking with removal, simple to operate, reproducible; Larger thrust can be produced by improving air pressure, being applicable to the coupling mechanism force demand of flywheel rotor in vibration, shock test process of large quality, reliable locking can be realized.
Accompanying drawing explanation
Fig. 1 is the structural representation of locking device of the present invention;
Fig. 2 is the structural representation of inventive closure metal bellows cavity;
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) by 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 inner circle and the outer round surface of thrust disc respectively, and lower end is welded on inner circle and the outer round surface of lower flange respectively.
(2) in the bottom of metal bellows cavity and the bottom recesses of lower flange, connect inflating-pressure releasing system by 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 the radially inner side of magnetic suspension control torque gyroscope flywheel rotor inner edge, and is fixed on rotor case assembly.
(4) opening inflating-pressure releasing system makes pressurized gas enter closed metal air bag cavity; in this process; due to the rising of air pressure; the bellows of closed metal air bag cavity extends; the fitting surface of the conical surface automatic capturing flywheel rotor of thrust disc; and hold out against flywheel rotor on protection bearing, eliminate axial portable protective gaps, flywheel rotor is locked.
(5) close the valve of inflating-pressure releasing system, stop air feed.
During unblock, open inflating-pressure releasing system release pressurized gas, bellows contract, thrust disc leaves flywheel rotor, and finally returns to raw footage, and flywheel rotor unlocks.
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, 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, sealed type 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 inner circle and the outer round surface of thrust disc 33 respectively, and the lower end of inner corrugated pipe 34 and outward corrugated tube 32 is welded on inner circle and the outer round surface of lower flange 31 respectively.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 lock time and flywheel rotor 2 fit tightly, for main stressed member, lower flange 31 provides the installation positioning datum assembled with rotor case assembly 1 for closed metal air bag cavity 3.
In the bottom of closed metal air bag cavity 3 and the bottom recesses of lower flange 31, 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 part, will use after leak detection.In the present invention, leak rate is less than 1 × 10
-9pam
3/ s.
Thrust disc 33 of the present invention is cone structure, and the useful area bearing air pressure is not less than 50mm
2.
The material of outward corrugated tube 32 of the present invention and inner corrugated pipe 34 is stainless steel, and by 2 ~ 3 wave components, wall thickness 0.01 ~ 2mm, can be greater than 1mm by maximal tensility in withstand voltage scope.
The withstand voltage of inventive closure metal bellows cavity 3 is 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 vacuum tube 44 of three-way valve 42 connects high-pressure air source 41, and passage vacuum tube 44 successively Bonding pressure table 43 and a sealed type air exhaust nozzle 35, another passage is bleed valve.
Magnetic suspension control torque gyroscope repeatable locking device working procedure of the present invention is as follows:
First, closed metal air bag cavity 3 is positioned over below the radially inner side of magnetic suspension control torque gyroscope flywheel rotor 2 inner edge, and is fixed on rotor case assembly 1.
Secondly, close the bleed valve of inflating-pressure releasing system 4, open valve and the pressure gage valve of three-way valve 42 high-pressure air source successively, make pressurized gas enter closed metal air bag cavity 3.Meanwhile, 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 bellows of closed metal air bag cavity 3 extends; the fitting surface of the conical surface automatic capturing flywheel rotor 2 of thrust disc 33; and hold out against flywheel rotor 2 on protection bearing 2B, eliminate axial portable protective gaps, flywheel rotor 2 is locked.Close the charging valve of inflating-pressure releasing system 4, stop air feed.
During unblock, open the bleed valve release pressurized gas of inflating-pressure releasing system 4, the bellows contract of closed metal air bag cavity 3, thrust disc 33 leaves flywheel rotor 2, and finally returns to raw footage, and flywheel rotor 2 unlocks.Now, protect bearing 2A for the protection of flywheel rotor 2.
Magnetic suspension control torque gyroscope repeatable locking device of the present invention had both been applicable to the flywheel rotor of inner rotor core, was also 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 present invention specifically implements to be only limitted to these explanations.For those skilled in the art; without departing from the inventive concept of the premise; to each constituent elements of the present invention, position relationship and Placement when not changing its function, the equivalent transformation carried out or alternative, also falls into protection scope of the present invention.
The content do not described in detail in specification of the present invention belongs to the known technology of those skilled in the art.
Claims (1)
1. a magnetic suspension control torque gyroscope repeatable locking device, is characterized in that: comprise rotor case assembly (1), protection bearing unit, 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 sealed type 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 during locking, thrust disc (33) holds out against flywheel rotor (2) in protection bearing (2B), eliminates axial portable protective gaps; Described closed metal air bag cavity (3) is less than 1 × 10 with the leak rate of air exhaust nozzle (35) connection part
-9pam
3/ s;
Described thrust disc (33) is cone structure, and the useful area bearing air pressure is not less than 50mm
2;
Described outward corrugated tube (32) and inner corrugated pipe (34) are by 2 ~ 3 wave components, and wall thickness 0.01 ~ 2mm, can be greater than 1mm by maximal tensility in withstand voltage scope;
Described the withstand voltage of closed metal air bag cavity (3) is 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 CN103089761A (en) | 2013-05-08 |
| CN103089761B true CN103089761B (en) | 2015-08-19 |
Family
ID=48202742
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN111828751B (en) * | 2020-07-13 | 2022-05-13 | 郝中亮 | Nano composite fiber tube |
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 |
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|---|---|
| CN103089761A (en) | 2013-05-08 |
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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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| TR01 | Transfer of patent right |
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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