CN105158868A - Platform load cooperation system for ultra-large-aperture optical camera - Google Patents
Platform load cooperation system for ultra-large-aperture optical camera Download PDFInfo
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- CN105158868A CN105158868A CN201510451986.9A CN201510451986A CN105158868A CN 105158868 A CN105158868 A CN 105158868A CN 201510451986 A CN201510451986 A CN 201510451986A CN 105158868 A CN105158868 A CN 105158868A
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Abstract
The invention provides a platform load cooperation system for an ultra-large-aperture optical camera. The system comprises a secondary mirror system and a primary mirror, wherein the secondary mirror system and the primary mirror are respectively disposed at the two sides of a platform, in case of an initial state, the secondary mirror system, the platform and the primary mirror are all at a completely furling state, and the secondary mirror system, a service chamber and the primary mirror are fixedly connected; and during extension, the primary mirror and the secondary mirror system are respectively pushed away from the service chamber towards a reverse direction by reliance on a furling truss structure and are locked once in place, the platform is extended to form three portions connected with one another, and after the primary mirror is completely extended, an optical path between the primary mirror and a secondary mirror passes through the inside of the extended service chamber so that it is ensured that the optical path is not shielded, the camera images normally, and the problem of the optical satellite configuration design of an ultra-large-aperture mirror surface is solved.
Description
Technical field
The present invention relates to space industry, particularly, relate to a kind of platform load collaborative design scheme towards super large caliber optical camera.
Background technology
Nearly decades, the structure of spacecraft was tending towards complicated, and function is also further various, and size and quality are also increasing along with the development of spationautics.Because delivery is to the restriction of quality and the enveloping space, how under related constraint, to design possible configurations and the spacecraft that performance meets is the important content of development work.
Space folding exhibition structure refers to and is in complete receiving state on ground, be fixed in the payload bay of delivery vehicle, after transmitting is entered the orbit, steering order according to ground progressively completes expansion action, then lock and remain complete deployed condition, this deployed configuration greatly improves the carrying capacity of spacecraft.
Large-scale Optical remote satellite, owing to improving the requirement of performance index such as observation resolution, fabric width etc., makes minute surface bore also increase thereupon.Super large caliber optical camera primary mirror normal operating conditions size is greater than 10m, and distance (being greater than 50m) between primary and secondary mirror, unscreened light path should be there is between two mirrors.If design by traditional optical lens, then cannot meet delivery envelope at all, and camera is installed on platform side, also there is the contradiction of supporting construction rigidity and weight, and be difficult to ensure imaging precision.
Summary of the invention
For the technical matters existed in above-mentioned prior art, the invention provides a kind of platform load cooperative system towards super large caliber optical camera, solve a difficult problem for the optical satellite Configuration Design of super large caliber minute surface.
The present invention is realized by following technical proposals:
A kind of platform load cooperative system towards super large caliber optical camera, comprise time mirror system and primary mirror, described mirror system and primary mirror lay respectively at platform both sides, under original state, secondary mirror system, platform, primary mirror are all in complete rounding state, and secondary mirror system, platform, primary mirror three are connected; During expansion, primary mirror, secondary mirror system rely on the truss-frame structure reverse push of gathering from platform respectively, lock after putting in place, and platform launches to form interconnective three parts.
Described primary mirror adopts petal-shaped configuration, is made up of even number lobe mirror, and adopt umbrella to draw in, every block mirror is interconnected by hinge, and under rounding state, radial envelope is little, is drawn in become sub-mirror circumference uniform distribution front during expansion from umbrella.
Under rounding state, entire system envelope is less than
Described mirror system has installs the function that secondary mirror is outer, can also install relevant supporting unit and other platform subsystem units as independent tank section.
The weight ratio of the sub-truss length of described primary mirror, secondary mirror system and primary mirror, secondary mirror system is inversely proportional to, and achieves the Inertia Matching of whole star.
Described platform is primarily of three part compositions of the same size, three parts are connected by internal truss frame each other, time initial, truss draws in, three parts are mutually drawn close and are adjacent to formation one right cylinder, when truss frame for connecting launches, three part radial dilatation form stable triangle configuration, and hollow space becomes large, effectively dodges light path between primary mirror, secondary mirror.
Described primary mirror, secondary mirror system all adopt three groups of independence truss support, form gusseted, ensure rigidity and the stability of supporting surface.
Described truss root has micro-adjusting mechanism, can finely tune truss and platform inclination angle, thus ensures primary mirror, secondary mirror front relative position relation.
The primary mirror duty size of described super large caliber optical camera is greater than 10m, and the spacing of primary and secondary mirror is greater than 50m.
Described truss root carries out angular adjustment by torque motor.
The present invention, owing to have employed above technical scheme, has following feature:
1, by platform and camera integrated design, primary and secondary mirror is positioned at platform both sides, the requirement of delivery envelope is met during gathering, single group truss length is effectively shortened under deployed condition, easy guarantee sub-truss rigidity, camera fundamental frequency under raising deployed condition, improves the Configuration Design of super large caliber, over distance optical camera;
2, to compare primary and secondary distance between mirrors short for single group primary and secondary mirror sub-truss length, effectively reduces process and assemble difficulty;
3, secondary mirror system is except secondary mirror installs needs, can install other units, be of value to and improve spacecraft layout, increases unit installing space, also can install other units according to mission requirements outside platform;
4, primary mirror, secondary mirror system are drawn in by sub-truss, are connected time initial with platform, and overall envelope is little, easily meet the requirement of delivery envelope;
5, celestial body is made up of three parts, effectively improves spacecraft integral rigidity during gathering, and in the middle of after launching, headspace can realize the demand of camera imaging function;
6, primary mirror is made up of even number lobe mirror, and adopting umbrella to draw in, is plane configuration after launching, and effectively reduces spacecraft envelope size under rounding state;
7, there is micro-adjusting mechanism in component truss root, adjustable truss inclination angle, ensures relative angular relationship between support, top front precision and primary and secondary mirror, can adjust primary and secondary mirror relativeness in-orbit except guarantee launches smoothly.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is deployed condition schematic diagram of the present invention;
Fig. 2 is rounding state schematic diagram of the present invention;
Fig. 3 is expansion process schematic diagram of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Shown in Fig. 1 ~ Fig. 3, the platform load cooperative system towards super large caliber optical camera provided by the present invention, primarily of secondary mirror system 1, platform (service module) 2, primary mirror 3 three part composition, wherein primary mirror and secondary mirror are combined to form complete camera.
Under original state, primary mirror 3, secondary mirror system 1, platform 2 draw in completely, and three is connected, and overall envelope is less than
As shown in Figure 1, Figure 3, expansion process is time mirror system 1, reverse push is from platform 2 respectively under secondary mirror sub-truss 4 and primary mirror support truss 5 act on for primary mirror 3, and then platform 2 launches to form interconnective three part chain-waless, and primary mirror 3 expands into front.
Primary mirror 3 adopts petal-shaped configuration, is made up of even number lobe mirror 7, and adopt umbrella to draw in, every block mirror 7 is interconnected by high rigidity hinge.Under rounding state, radial envelope is little, is drawn in become sub-mirror circumference uniform distribution front during expansion from umbrella.
Secondary mirror system 1, except installation secondary mirror, also can be used as independent tank section and installs relevant supporting unit and other platform subsystem units.
Primary mirror 3, secondary mirror system 1 are arranged in platform 2 both sides respectively, and the length of secondary mirror sub-truss 4 and primary mirror support truss 5 is roughly inversely proportional to the weight ratio of time mirror system, primary mirror, achieves the Inertia Matching of whole star.
Platform 2 is made up of three parts chain-wales of the same size, is connected each other by inner platform truss 6, and time initial, truss draws in, and three parts are mutually drawn close and are adjacent to formation one right cylinder.When platform truss 6 launches, platform three part radial dilatation forms stable triangle configuration, and hollow space becomes large, between primary and secondary mirror, light path is passed from the service module inside of launching, effectively dodge the light path 7 between primary and secondary mirror, thus ensure that light path 7 is not blocked, make camera normal imaging.
Primary mirror support truss 5, secondary mirror sub-truss 4 all adopt three groups of independence truss-frame structures to support, and form gusseted, ensure rigidity and the stability of supporting surface.Truss has gathering and deployed condition, and tighten up during gathering in platform interior, during expansion, primary mirror is except radial extent, truss-frame structure root and platform junction, can carry out small by torque motor.
Above the implementation of a concrete case of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. the platform load cooperative system towards super large caliber optical camera, it is characterized in that, comprise time mirror system and primary mirror, described mirror system and primary mirror lay respectively at platform both sides, under original state, secondary mirror system, platform, primary mirror are all in complete rounding state, and secondary mirror system, platform, primary mirror three are connected; During expansion, primary mirror, secondary mirror system rely on the truss-frame structure reverse push of gathering from platform respectively, lock after putting in place, and platform launches to form interconnective three parts.
2. the platform load cooperative system towards super large caliber optical camera according to claim 1, it is characterized in that, described primary mirror adopts petal-shaped configuration, be made up of even number lobe mirror, employing umbrella is drawn in, every block mirror is interconnected by hinge, and under rounding state, radial envelope is little, is drawn in become sub-mirror circumference uniform distribution front during expansion from umbrella.
3. the platform load cooperative system towards super large caliber optical camera according to claim 2, it is characterized in that, under rounding state, entire system envelope is less than
4. the platform load cooperative system towards super large caliber optical camera according to claim 1, it is characterized in that, described mirror system has installs the function that secondary mirror is outer, can also install relevant supporting unit and other platform subsystem units as independent tank section.
5. the platform load cooperative system towards super large caliber optical camera according to claim 1, is characterized in that, the weight ratio of the sub-truss length of described primary mirror, secondary mirror system and primary mirror, secondary mirror system is inversely proportional to, and achieves the Inertia Matching of whole star.
6. the platform load cooperative system towards super large caliber optical camera according to claim 2, it is characterized in that, described platform is primarily of three part compositions of the same size, three parts are connected by internal truss frame each other, and time initial, truss draws in, and three parts are mutually drawn close and are adjacent to formation one right cylinder, when truss frame for connecting launches, three part radial dilatation form stable triangle configuration, and hollow space becomes large, effectively dodges light path between primary mirror, secondary mirror.
7. the platform load cooperative system towards super large caliber optical camera according to claim 1, is characterized in that, described primary mirror, secondary mirror system all adopt three groups of independence truss support, forms gusseted, ensures rigidity and the stability of supporting surface.
8. the platform load cooperative system towards super large caliber optical camera according to claim 7, is characterized in that, described truss root has micro-adjusting mechanism, can finely tune truss and platform inclination angle, thus ensures primary mirror, secondary mirror front relative position relation.
9. the platform load cooperative system towards super large caliber optical camera according to claim 8, is characterized in that, described truss root carries out angular adjustment by torque motor.
10. the platform load cooperative system towards super large caliber optical camera according to claim 1, is characterized in that, the primary mirror duty size of described super large caliber optical camera is greater than 10m, and the spacing of primary and secondary mirror is greater than 50m.
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| CN201510451986.9A CN105158868B (en) | 2015-07-28 | 2015-07-28 | Towards the platform load cooperative system of super large caliber optical camera |
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| CN106501916A (en) * | 2016-11-29 | 2017-03-15 | 上海卫星工程研究所 | A kind of large diameter optical mirror face high rigidity gapless expanding unit |
| CN107967393A (en) * | 2017-12-07 | 2018-04-27 | 上海宇航系统工程研究所 | A kind of spacecraft bitubular parallel-connection structure based under multi-constraint condition carries design method |
| CN108572443A (en) * | 2018-06-13 | 2018-09-25 | 中国科学院西安光学精密机械研究所 | A kind of deployable space telescope |
| CN110450981A (en) * | 2019-08-14 | 2019-11-15 | 上海卫星工程研究所 | Deployable separate type satellite platform and its assembly application method |
| CN110703408A (en) * | 2019-11-30 | 2020-01-17 | 中国人民解放军战略支援部队航天工程大学 | Primary and secondary mirror telescopic 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 |
| CN112441261A (en) * | 2020-12-01 | 2021-03-05 | 哈尔滨工业大学 | Method for in-orbit cooperative assembly of ultra-large space telescope by multi-space robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106501916A (en) * | 2016-11-29 | 2017-03-15 | 上海卫星工程研究所 | A kind of large diameter optical mirror face high rigidity gapless expanding unit |
| CN107967393A (en) * | 2017-12-07 | 2018-04-27 | 上海宇航系统工程研究所 | A kind of spacecraft bitubular parallel-connection structure based under multi-constraint condition carries design method |
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| CN108572443A (en) * | 2018-06-13 | 2018-09-25 | 中国科学院西安光学精密机械研究所 | A kind of deployable space telescope |
| CN108572443B (en) * | 2018-06-13 | 2023-09-29 | 中国科学院西安光学精密机械研究所 | Expandable space telescope |
| CN110450981A (en) * | 2019-08-14 | 2019-11-15 | 上海卫星工程研究所 | Deployable separate type satellite platform and its assembly application method |
| CN110703408A (en) * | 2019-11-30 | 2020-01-17 | 中国人民解放军战略支援部队航天工程大学 | Primary and secondary mirror telescopic 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 |
| CN112433358B (en) * | 2020-11-30 | 2022-08-30 | 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 |
| CN112441261A (en) * | 2020-12-01 | 2021-03-05 | 哈尔滨工业大学 | Method for in-orbit cooperative assembly of ultra-large space telescope by multi-space robot |
| CN112441261B (en) * | 2020-12-01 | 2022-07-05 | 哈尔滨工业大学 | Method for on-orbit cooperative assembly of ultra-large space telescope by multi-space robot |
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| CN105158868B (en) | 2017-08-29 |
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