CN107608070A - One kind is used for the deployable shading closure assembly of stationary orbit remote sensing camera - Google Patents
One kind is used for the deployable shading closure assembly of stationary orbit remote sensing camera Download PDFInfo
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- CN107608070A CN107608070A CN201710858018.9A CN201710858018A CN107608070A CN 107608070 A CN107608070 A CN 107608070A CN 201710858018 A CN201710858018 A CN 201710858018A CN 107608070 A CN107608070 A CN 107608070A
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- light shield
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- sleeve
- shield cylinder
- drive mechanism
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Abstract
One kind belongs to space industry for the deployable shading closure assembly of stationary orbit remote sensing camera, and the device includes：Mechanical-optical setup body, multistage light shield cylinder, retaining mechanism and drawstring sleeve drive mechanism；Multistage light shield cylinder is fixed with mechanical-optical setup body, and compressive state is realized by retaining mechanism；Drawstring sleeve drive mechanism is identical with the series of multistage light shield cylinder, every one-level sleeve of drawstring sleeve drive mechanism is rigidly connected with the one-level light shield cylinder of corresponding multistage light shield cylinder, and multistage light shield cylinder realizes the expansion of multi-stage sleeve by drawstring sleeve drive mechanism；Primary mirror is arranged in the one-level sleeve of drawstring sleeve drive mechanism；Retaining mechanism is per one-level circumference uniform distribution on the multistage light shield cylinder of corresponding one-level.Compression ratio of the present invention is high；The driving force of drawstring sleeve drive mechanism is big, and synchronism is high；Whole device is high in the rigidity of structure of compressive state, can bear the vibratory shock load of emission process；The reliability of locking/unblock is high, and coupling mechanism force is big.
Description
Technical field
The invention belongs to space industry, and in particular to one kind is used for 3 meters of deployable shadings of bore remote sensing camera of stationary orbit
Closure assembly.
Background technology
Use of the light shield on space telescope, remote sensing of the earth field at present is increasingly extensive, routinely applies in spatial light
Light shield in system is not reinflated, and with the increase of optics bore, the light shield of the form has not applied to heavy caliber sky
Between optical system development.Meanwhile the remote sensing camera for running on geostationary orbit faces special space environment, itself and the sun
On the one hand the angle cycle period change in 24 hours of light, sun light direct beam camera light inlet can introduce veiling glare, cause image planes spoke
Illumination declines, and optical system signal to noise ratio reduces；On the other hand, the heat of introducing causes internal thermal equilibrium to destroy, and reduces camera
Image quality, therefore, the light shield length of remote sensing camera that the requirement of special space environment is operated in the track further increases
Greatly, because the fairing length of transmitting rocket limits, conventional fixed light shield can not be positioned over inside rocket, urgently
Need deployable light shield scheme.
In summary, the deployable light shield of remote sensing camera is by increasing attention, but related research is relatively stagnant
Afterwards, there is presently no the light shield for realizing stationary orbit remote sensing camera to deploy application case.
The content of the invention
In order to solve problems of the prior art, being used for stationary orbit remote sensing camera the invention provides one kind can open up
Shading closure assembly is opened, using the scheme that is compressed axially of light shield, effectively overcomes the limitation of rocket fairing length；Pass through simultaneously
The compression of light shield, lock-in techniques, improve the first-order modal of shading shade assembly.
The technical proposal for solving the technical problem of the invention is as follows：
One kind is used for the deployable shading closure assembly of stationary orbit remote sensing camera, and the device includes：Mechanical-optical setup body, multistage
Light shield cylinder, retaining mechanism and drawstring sleeve drive mechanism；The multistage light shield cylinder is fixed with mechanical-optical setup body, passes through lock
Tight mechanism realizes compressive state；The drawstring sleeve drive mechanism is identical with the series of multistage light shield cylinder, the driving of drawstring sleeve
Every one-level sleeve of mechanism is rigidly connected with the one-level light shield cylinder of corresponding multistage light shield cylinder, and multistage light shield cylinder passes through drawing
Rope sling cylinder drive mechanism realizes the expansion of multi-stage sleeve；Primary mirror is arranged in the one-level sleeve of drawstring sleeve drive mechanism；Locking
Mechanism is per one-level circumference uniform distribution on the multistage light shield cylinder of corresponding one-level；During unblock, start retaining mechanism, multistage light shield cylinder
Into release conditions, drawstring sleeve drive mechanism is driven, deploys multistage light shield cylinder.
The beneficial effects of the invention are as follows：One kind is used for the deployable shading closure assembly compression ratio height of stationary orbit remote sensing camera,
Big compression ratio can be realized；The driving force of drawstring sleeve drive mechanism is big, and synchronism is high；Structure of the whole device in compressive state
Rigidity is high, can bear the vibratory shock load of emission process；Using multiple locking pin firer synchronizing unlocking modes, locking/solution
The reliability of lock is high, and coupling mechanism force is big.
Brief description of the drawings
Fig. 1 present invention is a kind of to be used for the deployable shading closure assembly compressive state figure of stationary orbit remote sensing camera.
Fig. 2 present invention is a kind of to be used for the deployable shading closure assembly compressive state sectional view of stationary orbit remote sensing camera.
Fig. 3 retaining mechanism schematic diagrams of the present invention.
Fig. 4 drawstring sleeve drive mechanism schematic diagrams of the present invention.
In figure：1st, mechanical-optical setup body, 2, drawstring sleeve drive mechanism, 3, one-level light shield cylinder, 4, two level light shield cylinder,
5th, three-level light shield cylinder, 6, level Four light shield cylinder, 7, Pyatyi light shield cylinder, 8, six grades of light shield cylinders, 9, heating plate, 10, locking
Mechanism, 11, spacer pin, 12, locking pin, 13, sealing ring, 14, initiator, 15, combustion chamber, 16, motor, 17, roll, 18,
Rope, 19, pulley, 20, one-level sleeve, 21, two-level sleeve, 22, three-level sleeve, 23, level Four sleeve, 24, Pyatyi sleeve and 25,
Six grades of sleeves.
Embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
One kind, which is used for the deployable shading closure assembly of 3 meters of bore remote sensing cameras of stationary orbit, to be included：
Mechanical-optical setup body 1, drawstring sleeve drive mechanism 2, multistage light shield cylinder, light shield cylinder heating plate 9 and locking machine
Structure 10.As depicted in figs. 1 and 2, in the present embodiment, multistage series is six grades.
Mechanical-optical setup body 1 is fixed with the one-level light shield cylinder 3 in multistage light shield cylinder, and multistage light shield cylinder passes through locking
Mechanism 10 realizes compressive state；Drawstring sleeve drive mechanism 2 is identical with the series of multistage light shield cylinder, per one-level sleeve with it is corresponding
The light shield cylinder of one-level is rigidly connected, and during unblock, starts retaining mechanism 10, multistage light shield cylinder passes through drawstring into release conditions
Sleeve drive mechanism 2 realizes that multi-stage sleeve drives multistage light shield cylinder expansion.Primary mirror is arranged in one-level sleeve 20；Retaining mechanism
10 and all circumference uniform distributions of drawstring sleeve drive mechanism 2 on multistage light shield cylinder, in the present embodiment, retaining mechanism 10 and drawstring drive
2 each three groups of motivation structure；Three retaining mechanisms 10 can ensure the locking stiffness characteristics of structure.Three groups of drawstring sleeve drive mechanisms 2
The stability of structure can be improved, increase the load-carrying power of structure.
Multistage light shield cylinder is made by carbon fiber, and its specific stiffness is high, and modulus is big, including one-level light shield cylinder 3, two
Level light shield cylinder 4, three-level light shield cylinder 5, level Four light shield cylinder 6, Pyatyi light shield cylinder 7 and six grades of light shield cylinders 8；Inner surface
Diameter is respectively：3800mm, 3750mm, 3700mm, 3650mm, 3600mm, 3550mm, two level light shield cylinder 4, three-level shading
The height of cover cylinder 5, level Four light shield cylinder 6 and Pyatyi light shield cylinder 7 is 2000mm, and the height of six grades of light shield cylinders is 4000mm.
Heating plate 9 is pasted per the outer wall of one-level light shield cylinder, in-orbit temperature active control function is realized, leads between every grade of light shield cylinder
The mutually nested component for forming axially extensible compression is crossed, wherein one-level light shield cylinder 3 exists in outermost, six grades of light shield cylinders 8
Most inner side, nesting and the locking of adjacent level light shield cylinder are realized by retaining mechanism 10.
As shown in Fig. 3 (a), there are 5 locking pins 12 on retaining mechanism 10, correspond to the locking per one-level light shield cylinder respectively；
During locking, locking pin 12 protrudes, by the annular protrusion in corresponding light shield cylinder so as to every one-level light shield cylinder axle by corresponding to
To limitation locking；During unblock, as shown in Fig. 3 (b), initiator 14 is under fire, and gunpowder vigorous combustion in combustion chamber 15 produces high pressure
Combustion gas, driving locking pin 12 are axially moveable, after spacer pin 11 is cut from centre, axially retracted；Due to 5 locking pins 12
Combustion chamber 15 connect, therefore the synchronous retraction of 5 locking pins 12 can be realized, realize that unblock is released while six grades of light shields
Put, as shown in Fig. 3 (c), one-level light shield cylinder is fixed by screw thread and mechanical-optical setup body, and two level light shield cylinder is along one-level shading
Cover cylinder moves axially；Three-level light shield cylinder 3 can move axially along two level light shield cylinder 4；By that analogy, six grades of light shields are realized
The expansion layer by layer of cylinder.The light shield cylinder end of each of which level all sets limited block, prevents light shield cylinders at different levels from departing from whole dress
Put.
Shown in drawstring sleeve drive mechanism such as Fig. 4 (a), by motor 16, roll 17, rope, pulley 19, one-level sleeve
20th, 24, six grades of two-level sleeve 21, three-level sleeve 22, level Four sleeve 23, Pyatyi sleeve sleeves 25 are formed；Every grade of multi-stage sleeve
There is fixed block 19 on sleeve, one end of rope 18 of one-level sleeve 20 and the roll of motor 16 are fixed, and pass through one-level set
The pulley 19 of the upper left side of cylinder 20, the lower-left side roller of two-level sleeve 21, the bottom right side roller of two-level sleeve 21, the other end and one-level
The upper right side of sleeve 20 is fixed；Rope one end of two-level sleeve 21 and the lower left side of one-level sleeve are fixed, and pass through two-level sleeve
21 upper left side rollers, the lower-left side roller of three-level sleeve 22, the bottom right side roller of three-level sleeve 22, the upper right side roller of two-level sleeve 21,
The lower right side of the other end and one-level sleeve 20 is fixed；By that analogy, so that sleeve assembly be together in series；During expansion, motor 16
Drive roll 17 to rotate, collapse rope 18, so as to which six grades of sleeve mechanisms be deployed.As shown in Fig. 4 (b), wherein, one-level sleeve
20 are threadedly coupled fixation with one-level light shield cylinder 3 by top transfer block, and two-level sleeve 21 is hidden by top transfer block and two level
The annular protrusion threaded connection of light shield cylinder 4 is fixed, and three-level sleeve 22 passes through top transfer block and the convex annular of three-level light shield cylinder 5
Play threaded connection to fix, by that analogy, all the fixation that is rigidly connected is realized with corresponding light shield cylinder per one-level sleeve.Multi-stage sleeve
Mechanism (one-level~six grade) during deploying step by step, and multistage light shield cylinder realizes the expansion of axial direction, such as Fig. 4 corresponding to drive
(c) shown in.
Claims (6)
1. one kind is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that the device includes：Mechanical-optical setup
Body, multistage light shield cylinder, retaining mechanism and drawstring sleeve drive mechanism；The multistage light shield cylinder is consolidated with mechanical-optical setup body
It is fixed, compressive state is realized by retaining mechanism；The drawstring sleeve drive mechanism is identical with the series of multistage light shield cylinder, drawstring
Every one-level sleeve of sleeve drive mechanism is rigidly connected with the one-level light shield cylinder of corresponding multistage light shield cylinder, multistage light shield
Cylinder realizes the expansion of multi-stage sleeve by drawstring sleeve drive mechanism；Primary mirror is arranged on the one-level sleeve of drawstring sleeve drive mechanism
It is interior；Retaining mechanism is per one-level circumference uniform distribution on the multistage light shield cylinder of corresponding one-level；During unblock, start retaining mechanism, it is multistage
Light shield cylinder drives drawstring sleeve drive mechanism, deploys multistage light shield cylinder into release conditions.
2. one kind according to claim 1 is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that
By the mutually nested component for forming axially extensible compression between the multistage light shield cylinder, series is six grades：Wherein one-level
Light shield cylinder is coaxially disposed in outermost, six grades of light shield cylinders in most inner side, one-level light shield cylinder to six grades of light shield cylinders, two level
Light shield cylinder to six grades of light shield cylinders in axial direction move；One-level light shield cylinder is fixed by screw thread and mechanical-optical setup body,
Two level light shield cylinder is realized by retaining mechanism and is locked with one-level light shield cylinder；Three-level light shield cylinder is real by retaining mechanism
Now it is locked with two level light shield cylinder, by that analogy, realizes the nested layer by layer and locking of six grades of light shield cylinders.
3. one kind according to claim 1 is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that
The retaining mechanism includes：Combustion chamber, the multiple locking pins for being arranged on combustion chamber, the lower end of each locking pin pass through corresponding shading
Annular protrusion in cover cylinder realizes the corresponding limit for realizing limit function of the fixation of corresponding light shield cylinder at the same level, each locking pin
Position pin, the sealing ring being enclosed on locking pin；During unblock, initiator is under fire, and gunpowder vigorous combustion in combustion chamber produces high compression ignition
Gas, driving locking pin be axially moveable, by spacer pin therefrom between have no progeny, axially retract；Because the combustion chamber of 5 locking pins connects
It is logical, therefore the synchronous retraction of 5 locking pins can be realized, so as to realize the unblock release of six grades of light shields.
4. one kind according to claim 1 is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that
By the mutually nested component for forming axially extensible compression between the multi-stage sleeve, wherein one-level sleeve is in outermost, and six
Level sleeve is coaxially disposed in most inner side, one-level sleeve to six grades of sleeves, and two-level sleeve to six grades of sleeves in axial direction moves；One
Level sleeve is fixed by top transfer block and the annular protrusion in one-level light shield cylinder, and two-level sleeve is realized by top transfer block
It is locked with the annular protrusion in two level light shield cylinder；Three-level sleeve passes through in retaining mechanism realization and two level light shield cylinder
Annular protrusion is locked, and by that analogy, realizes the nested layer by layer and locking of six grades of sleeve cylinders.
5. one kind according to claim 1 is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that
The drawstring sleeve drive mechanism includes：Multi-stage sleeve, motor, roll, rope and pulley；On every layer of sleeve of multi-stage sleeve
There is fixed block, rope one end of one-level sleeve and the roll of motor are fixed, and the cunning of the upper left side by one-level sleeve
Wheel, two-level sleeve lower-left side roller, two-level sleeve bottom right side roller, the upper right side of the other end and one-level sleeve is fixed；Two level set
Rope one end and the lower left side of one-level sleeve of cylinder are fixed, and are breakked away by two-level sleeve upper left side roller, three-level sleeve lower-left
Wheel, three-level sleeve bottom right side roller, two-level sleeve upper right side roller, the lower right side of the other end and one-level sleeve is fixed；With such
Push away, so as to which sleeve assembly be together in series；During expansion, motor driven roll rotates, and collapses rope, so as to by six grades of sleeve machines
Structure deploys.
6. one kind according to claim 1 is used for the deployable shading closure assembly of stationary orbit remote sensing camera, it is characterised in that
Heating plate is set on the outer surface of the multistage light shield cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858018.9A CN107608070B (en) | 2017-09-21 | 2017-09-21 | One kind being used for the deployable shading closure assembly of stationary orbit remote sensing camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858018.9A CN107608070B (en) | 2017-09-21 | 2017-09-21 | One kind being used for the deployable shading closure assembly of stationary orbit remote sensing camera |
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| Publication Number | Publication Date |
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| CN107608070A true CN107608070A (en) | 2018-01-19 |
| CN107608070B CN107608070B (en) | 2019-06-04 |
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ID=61061730
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710858018.9A Active CN107608070B (en) | 2017-09-21 | 2017-09-21 | One kind being used for the deployable shading closure assembly of stationary orbit remote sensing camera |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109298521A (en) * | 2018-09-28 | 2019-02-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of scalable shading closure assembly |
| CN110763262A (en) * | 2018-07-27 | 2020-02-07 | 长光卫星技术有限公司 | High-rigidity self-unfolding type light shield |
| CN110884690A (en) * | 2019-11-30 | 2020-03-17 | 中国人民解放军战略支援部队航天工程大学 | Optical imaging satellite side face light shield unfolding system |
| CN112433358A (en) * | 2020-11-30 | 2021-03-02 | 中国科学院长春光学精密机械与物理研究所 | Space ultra-large-diameter lens hood |
| CN114721200A (en) * | 2022-03-09 | 2022-07-08 | 长光卫星技术股份有限公司 | Space optical load lens hood assembly capable of being unfolded on track |
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| CN112433358A (en) * | 2020-11-30 | 2021-03-02 | 中国科学院长春光学精密机械与物理研究所 | Space ultra-large-diameter lens hood |
| CN114721200A (en) * | 2022-03-09 | 2022-07-08 | 长光卫星技术股份有限公司 | Space optical load lens hood assembly capable of being unfolded on track |
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