CN103410896B - A kind of 2 D photoelectric turntable locking device - Google Patents
A kind of 2 D photoelectric turntable locking device Download PDFInfo
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- CN103410896B CN103410896B CN201310250565.0A CN201310250565A CN103410896B CN 103410896 B CN103410896 B CN 103410896B CN 201310250565 A CN201310250565 A CN 201310250565A CN 103410896 B CN103410896 B CN 103410896B
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Abstract
The invention discloses a kind of locking device for two-dimensional rotary equipment, comprise locking device base, azimuth rotation tight-push unit, locking machine mechanical arm, electromagnetic brake, lock shaft system and unlock torsion spring.Locking device is arranged on the end face of two-dimensional rotary equipment base, realizes, to the locking of two-dimensional rotary equipment pitch rotation, realizing the locking to azimuth rotation by tight-push unit by locking machine mechanical arm top.By the braking of sheet electromagnetic brake power-off brake functional realiey lock shaft system, and make the locking of locking device maintenance to two-dimensional rotary equipment.When the releasing of needs locking device is braked two-dimensional rotary equipment, to electromagnetic brake energising, brake release.Under the twisting force unlocking torsion spring, locking machine mechanical arm is rotated around lock shaft system, and the operating range of whiz two-dimensional rotary equipment.Again to electromagnetic brake power-off, braking moment makes locking device keep released state.
Description
Technical field:
The present invention relates to a kind of 2 D photoelectric turntable, particularly a kind of locking device of 2 D photoelectric turntable, it is for 2 D photoelectric turntable twist-lock and latch-release.
Background technique:
Spaceborne 2 D photoelectric turntable by driving the bidimensional large rotation of photoelectricity load, can realize tracking on a surface target and catching the news operation that works of going forward side by side.In order to avoid the large rotation of dimensional turntable before working on power, to protect turntable shaft system and photoelectricity load, 2 D photoelectric turntable is locked; Before dimensional turntable works on power, need to remove the locking to 2 D photoelectric turntable.
Due to the not maintainalbility of spaceborne 2 D photoelectric turntable, entering line-locked device to it needs to have extreme high reliability.Not only have high reliability to the locking of turntable, the reliable unblock before work is particularly important especially.Because the unblock of locking framework was lost efficacy, whole spaceborne 2 D photoelectric turntable was directly caused to work.
For a certain reason, spaceborne 2 D photoelectric turntable locked stage, there is no power supply, need to realize in the power-off state locking 2 D photoelectric turntable.Before work, be energized and latch-release is carried out to it.
The terminate load of 2 D photoelectric turntable is optics and electronics equipment, and also there is very high rotating accuracy requirement in turntable shaft system.2 D photoelectric turntable and locking device thereof, need to experience space mechanics environment tempestuously at satellite platform launching phase.So, need to lock in the vibration environment of 2 D photoelectric turntable before work, avoid turntable large rotation.And reduce the collapsing force of vibration environment to 2 D photoelectric turntable extremely terminate load by locking device, play the protective action to O-E Payload.And, should not introduce rigid constraint and bring unnecessarily additional forces to turntable shaft system and load.
On star, load has weight limits harshly to 2 D photoelectric turntable and locking device thereof, so wish that locking device has extremely light weight.
Summary of the invention:
The object of the invention is to provide a kind of locking device of spaceborne 2 D photoelectric turntable.To solve when there is no power supply, a device realizes the locking that equipment bidimensional rotates simultaneously.
The present invention utilizes electromagnetic brake holding device to be in locked position to two-dimensional rotary equipment, by locking machine mechanical arm top baffle plate, pitch rotation is locked, by the tight-push unit be arranged in the middle part of locking machine mechanical arm, azimuth rotation is locked, thus meet the locking requirement before the work of two-dimensional rotary equipment.And after electromagnetic brake brake release, realize the brake release of two-dimensional rotary equipment by unlocking torsion spring.Electromagnetic brake starts braking function again, and holding device is in the latch-release position to two-dimensional rotary equipment.This device has the vibration suppression function of two-dimensional rotary equipment in vibration environment simultaneously.The present invention is specially adapted to the inhibitory action played while spaceborne 2 D photoelectric turntable carries out effectively locking to the rotation of its bidimensional in the vibration environment of satellite platform launching phase its vibration, and before the work of entering the orbit, realize reliability latch-release highly.
Concrete device is as shown in accompanying drawing 1 ~ 4.
1, two-dimensional rotary equipment locking device is made up of azimuth rotation tight-push unit 2, locking machine mechanical arm 3, electromagnetic brake 4, lock shaft system 5, unblock torsion spring 6 and locking device base 1.Azimuth rotation tight-push unit 2 is fixed in locking machine mechanical arm 3 mounting hole, and locking machine mechanical arm 3 is fixed on the end face of lock shaft system 5 mountion plate, and locking machine mechanical arm 3 top baffle plate inserts between two pitch rotation limit stoper 8; Described unblock torsion spring 6 is fixed on lock shaft system 5 side; Described electromagnetic brake 4 is fixed on the opposite side of lock shaft system 5.
2, locking machine mechanical arm 3 top baffle plate inserts in pitch rotation limit stoper 8, and azimuth rotation tight-push unit 2 holds out against bottom two-dimensional rotary equipment 7, and during electromagnetic brake 4 power-off brake lock shaft system 5, two-dimensional rotary equipment is in the lock state.
3, after electromagnetic brake 4 powers on brake release, unlock torsion spring 6 and discharge torsional moment by locking machine mechanical arm 3 along lock shaft system 5 rotation, whiz two-dimensional rotary equipment 7 working zone, lock state is removed, and two-dimensional rotary equipment can carry out rotation work.
The invention has the advantages that:
1) the present invention is locked by single-point and unlocks the locking and latch-release that realize rotating bidimensional, thus reliability is greatly improved;
2) the present invention is by the locking of elasticity tight-push unit realization to large inertia azimuth rotation, is locked, thus realize the protective action of shaft and photoelectricity load in vibration environment by flexible limit device to the pitch rotation of carrying photoelectricity load;
3) the present invention is to the timing of two-dimensional rotary device lock, utilizes dead electricity type electromagnetic brake to realize the locking position of locking device; When needs unlock, the energy of deformation unlocking torsion spring release storage is utilized to make locking device whiz two-dimensional rotary equipment working area; Again to electromagnetic brake power-off, locking device is made very reliably to keep brake releasing position.
Accompanying drawing illustrates:
Fig. 1 is locking device structure schematic diagram of the present invention;
In figure: 1---locking device base;
2---azimuth rotation tight-push unit;
3---locking machine mechanical arm;
4---electromagnetic brake;
5---lock shaft system;
6---unlock torsion spring.
Fig. 2 is apparatus of the present invention two kinds of functional status figure, a. lock state; B. latch-release state.
Fig. 3 is the structure composition schematic diagram of azimuth rotation tight-push unit 2;
In figure: 2-1---piston;
2-2---sleeve;
2-3---spring;
2-4---union (screwed)bonnet (UB.
Fig. 4 is the structure composition schematic diagram of lock shaft system 5;
In figure: 5-1---dog point rotating shaft;
5-2---bearing 1;
5-3---axle system table top;
5-4---unlock end rotating shaft;
5-5---bearing 2;
The outer trim ring of 5-6---bearing;
5-7---trim ring in bearing.
Fig. 5 is the structure composition schematic diagram of pitch rotation limit stoper 8;
In figure: 8-1---support;
8-2---elastic damping block.
Embodiment:
Provide the present invention better embodiment according to Fig. 1 to Fig. 4 below, in order to structure characteristic of the present invention and implementation methods to be described, but not be used for limiting scope of the present invention.
In the present embodiment, locking device comprises following several part: azimuth rotation tight-push unit 2, locking machine mechanical arm 3, electromagnetic brake 4, lock shaft system 5, unblock torsion spring 6, locking device base 1 and two-dimensional rotary equipment 7 and pitch rotation limit stoper 8.Gross weight is less than 1.2KG.
1) locking machine mechanical arm 3: shaping by the aluminum matrix composite overall processing of lightweight, high-modulus, wider bottom it, for installing; Baffle plate is stretched out at top, and to realize pitch rotation spacing; " both wings " are overhanging installs for azimuth rotation tight-push unit at middle part.In the present embodiment, locking machine mechanical arm can be supported by lock shaft system 5 and rotate around it, and when going to vertical state, locking machine mechanical arm realizes the locking to 2 D photoelectric turntable; When going to level, locking machine mechanical arm whiz turntable working area, realizes latch-release.
2) azimuth rotation tight-push unit 2 and pitch rotation limit stoper 8: realize the locking to two-dimensional rotary equipment 7 azimuth rotation and pitch rotation respectively.The present embodiment azimuth rotation tight-push unit 2 is arranged on overhanging in the middle part of locking machine mechanical arm 3 " both wings ", and left and right respectively installs one.Each tight-push unit, by aluminium alloy sleeve barrel 2-2, is arranged on the piston 2-1 that the polyimide in sleeve 2-2 endoporus manufactures, and is pressed against on the anterior shoulder block of sleeve 2-2 endoporus by the union (screwed)bonnet (UB 2-4 of spring 2-3 and screw-in sleeve 2-2 endoporus afterbody internal thread.Piston 2-1 holds out against bottom two-dimensional rotary equipment 7, realizes azimuth rotation locking; Pitch rotation limit stoper 8 is made up of aluminium alloy post 8-1 and mounted thereto two elastic damping block 8-2, to the locking machine mechanical arm 3 top baffle limiting stretched into wherein, realizes pitch rotation locking;
3) electromagnetic brake 4: break is the two-sided dry type electromagnetic brake of dead electricity type, dead electricity is braked, power on brake release.Effect locking device is remained on locked position or latch-release position.In the present embodiment, electromagnetic brake 4 is arranged on lock shaft system 5 side, is coordinated, realize the braking to lock shaft system 5 by involute splines with lock shaft system 5 rotating shaft, thus keeps locking machine mechanical arm 3 to be in locked position.The braking moment of 8Nm can be provided, with crossing electromagnetism the suction-combining force brake off when powering on during electromagnetic brake 4 dead electricity.
4) 5-2,5-5 support is held by 71904 profile shafts of two the back-to-back installations being arranged in both sides by lock shaft system 5, and bearing is fixed by interior trim ring 5-7 and rotating shaft 5-1,5-4, is fixed by outer trim ring 5-6 and locking device base 1.Due to space low temperature, the requirement of high vacuum Environmental Conditions, bearing through solid lubrication, anti-cold welding process.Dog point rotating shaft 5-1 is connected with electromagnetic brake 4 by its shaft part being directly processed into outer involute splines; Unlock end rotating shaft 5-4 tail end and unblock torsion spring 6 is installed.
5) unlock torsion spring 6: the effect unlocking torsion spring 6 is after electromagnetic brake 6 powers on brake release, release deformation energy drives locking machine mechanical arm whiz two-dimensional rotary equipment 7 working zone.Unlock the plane scroll spring realization that torsion spring 6 is prepared by 1Cr18Ni9Ti in the present embodiment, one end is fixed on lock shaft system 5 unblock end rotating shaft 5-4, and the other end is fixed on locking device base 1.Store deformation energy during locking, discharge when unlocking.
6) locking device base 1 and two-dimensional rotary equipment 7: locking device base 1 plays transition and supporting effect to whole locking device, formed by the manufacturing of TC4 whole titanium alloy, profile is flat " U " font, bottom is installed, " two-arm " perforate, the boring machine shaping altogether of endoporus and end face, is respectively lock shaft system 5, unlocks installation that torsion spring 6 and electromagnetic brake 4 provide excellent, location base.The present embodiment two-dimensional rotary equipment 7 gross weight 30KG, its azimuth rotation scope-90 ° ~+90 °, pitch rotation scope-30 ° ~+70 °, locks it before requiring work, carries out latch-release during work, does not need again to repeat locking.
As mentioned above, the bidimensional of two-dimensional rotary equipment can rotate and effectively lock by locking device, and before the work of two-dimensional rotary equipment, can realize reliability latch-release highly.Simultaneously; azimuth rotation elasticity tight-push unit is designed in azimuth rotation locking; flexible limit device is designed in pitch rotation locking, can while realizing bidimensional twist-lock, realize the vibration suppression of azimuth axle and the photoelectricity load of elevation axis system and protective action.
Claims (1)
1. the locking device of a two-dimensional rotary equipment, it is made up of locking device base (1), azimuth rotation tight-push unit (2), locking machine mechanical arm (3), electromagnetic brake (4), lock shaft system (5) and unblock torsion spring (6), it is characterized in that: described locking device is installed on two-dimensional rotary equipment (7) base end face place; Described azimuth rotation tight-push unit (2) is fixed in locking machine mechanical arm (3) mounting hole, locking machine mechanical arm (3) is fixed on the end face of lock shaft system (5) mountion plate, and locking machine mechanical arm (3) top baffle plate inserts between two pitch rotation limit stoper (8); Described unblock torsion spring (6) is fixed on lock shaft system (5) side; Described electromagnetic brake (4) is fixed on the opposite side of lock shaft system (5); Described locking device is when lock state, and locking machine mechanical arm keeps the locking to two-dimensional rotary equipment (7), and wherein azimuth rotation tight-push unit (2) realizes the locking to azimuth rotation; The top of locking machine mechanical arm (3) realizes the locking to pitch rotation; During electromagnetic brake (4) power-off, lock shaft system (5) locks two-dimensional rotary equipment; Locking to two-dimensional rotary equipment is then removed to electromagnetic brake (4) energising lock shaft system (5), now, locking machine mechanical arm (3) is together with azimuth rotation tight-push unit (2), under unblock torsion spring (6) torsional moment effect, the operating range of whiz two-dimensional rotary equipment (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310250565.0A CN103410896B (en) | 2013-06-21 | 2013-06-21 | A kind of 2 D photoelectric turntable locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310250565.0A CN103410896B (en) | 2013-06-21 | 2013-06-21 | A kind of 2 D photoelectric turntable locking device |
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| Publication Number | Publication Date |
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| CN103410896A CN103410896A (en) | 2013-11-27 |
| CN103410896B true CN103410896B (en) | 2015-09-30 |
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| CN201310250565.0A Active CN103410896B (en) | 2013-06-21 | 2013-06-21 | A kind of 2 D photoelectric turntable locking device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179927B (en) * | 2014-08-15 | 2016-07-06 | 中国科学院上海技术物理研究所 | A kind of locking-unlocking device of two-dimension translational mechanism |
| CN104948622A (en) * | 2015-07-01 | 2015-09-30 | 王丽 | Stop motion mechanism for threaded rotating column |
| CN109018449A (en) * | 2018-08-31 | 2018-12-18 | 深圳航星光网空间技术有限公司 | A kind of locking mechanism |
| CN111043187B (en) * | 2019-12-02 | 2021-05-14 | 中国科学院光电技术研究所 | Shafting locking device |
| CN111409874B (en) * | 2020-03-10 | 2022-06-03 | 上海卫星工程研究所 | Two-dimensional rotary table locking and unlocking device suitable for spacecraft |
| CN112389339B (en) * | 2020-10-30 | 2022-01-28 | 济南和普威视光电技术有限公司 | Photoelectric turntable locking device |
| CN115045937B (en) * | 2022-06-27 | 2023-07-25 | 南京信息工程大学 | Mechanical limiting mechanism and method for +/-360 DEG turntable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101758932A (en) * | 2009-12-25 | 2010-06-30 | 中国科学院空间科学与应用研究中心 | Satellite effective load sealing protective shade |
| CN202833795U (en) * | 2012-10-19 | 2013-03-27 | 北京***温室科技有限公司 | Torsional spring bidirectional transmission self-locking device |
| CN203384267U (en) * | 2013-06-21 | 2014-01-08 | 中国科学院上海技术物理研究所 | Locking device for two-dimensional rotating equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3535890B2 (en) * | 1994-06-08 | 2004-06-07 | 株式会社東海理化電機製作所 | Vehicle locking device |
| JPH08180511A (en) * | 1994-12-28 | 1996-07-12 | Sharp Corp | Reel lock mechanism of magnetic recording/reproducing apparatus |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758932A (en) * | 2009-12-25 | 2010-06-30 | 中国科学院空间科学与应用研究中心 | Satellite effective load sealing protective shade |
| CN202833795U (en) * | 2012-10-19 | 2013-03-27 | 北京***温室科技有限公司 | Torsional spring bidirectional transmission self-locking device |
| CN203384267U (en) * | 2013-06-21 | 2014-01-08 | 中国科学院上海技术物理研究所 | Locking device for two-dimensional rotating equipment |
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| CN103410896A (en) | 2013-11-27 |
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