CN105607216B - The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like - Google Patents
The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like Download PDFInfo
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- CN105607216B CN105607216B CN201511017764.2A CN201511017764A CN105607216B CN 105607216 B CN105607216 B CN 105607216B CN 201511017764 A CN201511017764 A CN 201511017764A CN 105607216 B CN105607216 B CN 105607216B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
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Abstract
The present invention relates to a kind of off-axis three reflecting optical systems main supporting structures of large scale high specific stiffness truss-like, include mainly foreboard, the first A types truss, the 2nd A types truss, the 3rd A types truss, the 4th A types truss, the 5th A types truss, the 6th A types truss, the 7th A types truss, back plate.It is characterized in that：The mode that seven groups of A type truss are connected through a screw thread is combined with foreboard, back plate；A type truss includes A type joints, truss rod, I type joints, and truss rod is combined together with connector by way of splicing, and the form of splicing is socket, connector outside, including truss rod；A type joints are fixed on foreboard, and I type joints are fixed in back plate.Structure of the invention is compact, and each structural member is easy to be molded, and main supporting structure is easily assembled, and specific stiffness is high, disclosure satisfy that the requirement of off-axis three reflecting optical system of large scale.The present invention can be used for the fields such as large space remote sensor, space-based telescope.
Description
Technical field
The invention belongs to space optical remote fields, are related to a kind of off-axis three reflecting optical of large scale high specific stiffness truss-like
System main supporting structure.
Background technology
Off-axis three reflecting optical system is because with non-stop layer blocks, transmission function is high, compact-sized, easy while realizing big visual field
The advantages that with high-resolution, has been widely used in space optical remote field.Currently, the off-axis main branch of three reflecting optical systems
The thin-walled barrel structure of support structure generally use monoblock cast closes as shown in Figure 1, its material is generally cast titanium alloy, invar, boron aluminium
The materials such as gold.When remote sensor size is larger, the thin-walled barrel structure of monoblock cast cannot be satisfied requirement.This structure have with
Under several disadvantages：
1) specific stiffness is low.The density of material such as cast titanium alloy are larger, and elasticity modulus is relatively low, lead to thin wall cylinder structural member specific stiffness
Relatively low, weight and rigidity are difficult to meet design requirement simultaneously.
2) molding difficulty is big.Using the thin wall cylinder support construction of monoblock cast, generally by die casting and molding, off-axis three
Anti- Space Remote Sensors are complicated, such as use thin-walled barrel structure, and the design of mold, processing are there are larger difficulty, and thin-wall construction
Easily there are the casting flaws such as cob webbing, buckling deformation, cold shut, crackle in part, and yield rate is low.And by current domestic casting ability
Limitation, it is difficult to realize the monoblock cast of large size, thin walled barrel structure, therefore the support construction of thin-walled cartridge type also just cannot be satisfied
The requirement of large scale optical system.
Invention content
The invention solves in the prior art the technical issues of, it is anti-to provide a kind of large scale high specific stiffness truss-like off-axis three
Optical system main supporting structure.
In order to solve the above-mentioned technical problem, technical scheme of the present invention is specific as follows：
A kind of off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like, including：
Foreboard, the first A types truss, the 2nd A types truss, the 3rd A types truss, the 4th A types truss, the 5th A types truss, the 6th
A types truss, the 7th A types truss and back plate；
The mode that described first to the 7th A type truss is connected through a screw thread respectively is combined with foreboard, back plate；Its
In, the first A types truss and the 7th A type truss are symmetrically distributed at left and right sides of main supporting structure；2nd A types truss and the 6th A types
Truss is symmetrically distributed at left and right sides of main supporting structure；3rd A types truss and the 5th A type truss are symmetrically distributed in main supporting structure
The left and right sides；4th A type truss is distributed in main supporting structure top；
The foreboard includes：Refrative mirror installation space, secondary mirror installation space, the refrative mirror installation base of side, secondary mirror peace
Fill boss and multiple A type joints installation bases of the other side；Refrative mirror installation base is arranged outside refrative mirror installation space
It encloses；The setting of secondary mirror installation base is in secondary mirror installation space periphery；
The back plate includes：Focal plane subassembly installation space, three mirror installation spaces, primary mirror installation space；The I type joints of side
Installation base and the focal plane subassembly installation base of other side, three mirror installation bases, primary mirror installation base；
Primary mirror component is fixed on the primary mirror installation base of back plate, and secondary mirror assembly is fixed on the secondary mirror installation base of foreboard
On, three mirror assemblies are fixed on three mirror installation bases of back plate, are folded mirror assembly and are fixed on the refrative mirror installation base of foreboard,
CCD focal plane subassemblies are fixed on the focal plane subassembly installation base of back plate.
In the above-mentioned technical solutions, the described first to the 7th A type truss respectively includes：A type joints, truss rod, I types connect
Head；
The truss rod both ends are combined together with A type joints and I type joints respectively by way of splicing, the shape of splicing
Formula be socket, connector outside, including truss rod；A type joints are fixed on by screw and pin on foreboard, and I type joints pass through spiral shell
Nail and pin are fixed in back plate.
In the above-mentioned technical solutions, the A type joints include：Two truss rod sleeves arranged side by side, which is provided with multiple notes
Glue hole；The connecting plate of two truss rod sleeves is equipped with screw mounting hole and pin hole.
In the above-mentioned technical solutions, the I type joints include：Truss rod sleeve；It which is provided with multiple hole for injecting glue；Truss rod
Sleeve bottom is equipped with multiple screw mounting holes and pin hole.
In the above-mentioned technical solutions, the material of the truss rod is carbon fibre composite.
In the above-mentioned technical solutions, all optical elements and CCD focal plane subassemblies are all made of installation by adhering.
In the above-mentioned technical solutions, preceding plate material is ZTC4；A type joint materials are TC4；Truss bar material is M55J；I types
Joint material is TC4；Plate material is ZTC4 afterwards.
The present invention has advantageous effect below：
The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like of the present invention, using truss structure
Instead of traditional thin-walled barrel structure, solves the problems, such as the support of off-axis three reflecting optical system of large scale.Compared with thin-walled barrel structure,
The present invention have many advantages, such as it is compact-sized, be easily assembled, specific stiffness is high, good stability of the dimension, it is anti-that off-axis three can not only be met
The requirement of large scale optical system also saves the weight of optical lens, has saved launch cost.
The present invention can be used for the fields such as large space optical sensor, space-based telescope.
Description of the drawings
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is thin-walled cartridge type main supporting structure schematic diagram.
Fig. 2 is truss-like main supporting structure schematic diagram.
Fig. 3 is foreboard schematic diagram, is followed successively by main view, side view and rearview from left to right.
Fig. 4 is the first A type truss schematic diagrames.
Fig. 5 is A type joint schematic diagrames.
Fig. 6 is I type joint schematic diagrames.
Fig. 7 is that truss rod is glued schematic diagram with connector.
Fig. 8 is back plate schematic diagram, is followed successively by main view, side view and rearview from left to right.
Fig. 9 is the schematic diagram that optical element and focal plane subassembly are installed on truss-like main supporting structure.
Specific implementation mode
The present invention is described in detail below in conjunction with the accompanying drawings.
Preferred embodiment includes mainly foreboard 1, the first A types truss 2, the 2nd A type truss as shown in Fig. 2~Fig. 9
3, the 3rd A types truss 4, the 4th A types truss 5, the 5th A types truss 6, the 6th A types truss 7, the 7th A types truss 8, back plate 9.Seven groups
The mode that A type truss is connected through a screw thread is combined with foreboard 1, back plate 3, wherein the first A types truss 2 and the 7th A types purlin
Frame 8 is symmetrically distributed at left and right sides of main supporting structure, and the 2nd A types truss 3 and the 6th A types truss 7 are symmetrically distributed in main support and tie
At left and right sides of structure, the 3rd A types truss 4 and the 5th A types truss 6 are symmetrically distributed at left and right sides of main supporting structure, the 4th A type truss
5 are distributed in main supporting structure top.
1 structure type of foreboard includes mainly refrative mirror installation base 101, secondary mirror installation base 102, folds microscope group
Part installation space 103, secondary mirror assembly installation space 104, A type joints installation base 105.
The first A types truss 2 is made of A type joints 10, truss rod 11, I type joints 12.Truss rod passes through with connector
The mode of splicing is combined together, and the form of splicing is socket, connector outside, including truss rod.A type joints 10 by screw and
Pin is fixed on foreboard 1, and I type joints 12 are fixed on by screw and pin in back plate 9.The composition of remaining A type truss combines
Mode, fixed form are consistent with the first A types truss 2.
10 structure type of A type joints includes mainly truss rod sleeve 1001, hole for injecting glue 1002, screw mounting hole
1003, pin hole 1004.The structure type of A type joints in remaining A type truss is consistent with A type joints 10.
12 structure type of I type joints includes mainly truss rod sleeve 1201, hole for injecting glue 1202, screw mounting hole
1203, pin hole 1204.The structure type of I type joints in remaining A type truss is consistent with I type joints 12.
9 structure type of back plate includes mainly I type joints installation base 901, focal plane subassembly installation space 902, three
Mirror installation space 903, primary mirror installation space 904, focal plane subassembly installation base 905, three mirror installation bases 906, primary mirror installation are convex
Platform 907.
Foreboard 1 is made of cast titanium alloy (ZTC4), and A type joints are made of titanium alloy (TC4), and truss rod uses Gao Mo
Amount, the carbon fibre composite (M55J) that low line is swollen are made, and I type joints are made of (TC4), and back plate 9 uses cast titanium alloy
(ZTC4) it is made.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (3)
1. a kind of off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like, which is characterized in that including：
Foreboard, the first A types truss, the 2nd A types truss, the 3rd A types truss, the 4th A types truss, the 5th A types truss, the 6th A types
Truss, the 7th A types truss and back plate；
The mode that described first to the 7th A type truss is connected through a screw thread respectively is combined with foreboard, back plate；Wherein,
One A types truss and the 7th A type truss are symmetrically distributed at left and right sides of main supporting structure；2nd A types truss and the 6th A type truss pair
Title is distributed at left and right sides of main supporting structure；3rd A types truss and the 5th A type truss are symmetrically distributed in main supporting structure or so two
Side；4th A type truss is distributed in main supporting structure top；
The foreboard includes：Refrative mirror installation space, secondary mirror installation space, the refrative mirror installation base of side, secondary mirror installation are convex
Platform and multiple A type joints installation bases of the other side；The setting of refrative mirror installation base is in refrative mirror installation space periphery；It is secondary
The setting of mirror installation base is in secondary mirror installation space periphery；
The back plate includes：Focal plane subassembly installation space, three mirror installation spaces, primary mirror installation space；The I type joints of side are installed
Boss and the focal plane subassembly installation base of other side, three mirror installation bases, primary mirror installation base；
Primary mirror component is fixed on the primary mirror installation base of back plate, and secondary mirror assembly is fixed on the secondary mirror installation base of foreboard, and three
Mirror assembly is fixed on three mirror installation bases of back plate, is folded mirror assembly and is fixed on the refrative mirror installation base of foreboard, CCD is burnt
Face component is fixed on the focal plane subassembly installation base of back plate；
Described first to the 7th A type truss respectively includes：A type joints, truss rod, I type joints；
The truss rod both ends are combined together with A type joints and I type joints respectively by way of splicing, and the form of splicing is
Socket, connector outside, including truss rod；A type joints are fixed on by screw and pin on foreboard, I type joints by screw and
Pin is fixed in back plate.
2. the off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like according to claim 1, special
Sign is that the A type joints include：Two truss rod sleeves arranged side by side, which is provided with multiple hole for injecting glue；Two truss rod sleeves
Connecting plate be equipped with screw mounting hole and pin hole.
3. the off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like according to claim 1, special
Sign is that the I type joints include：Truss rod sleeve；It which is provided with multiple hole for injecting glue；Truss rod sleeve bottom is equipped with multiple spiral shells
Follow closely mounting hole and pin hole.
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| CN201511017764.2A CN105607216B (en) | 2015-12-30 | 2015-12-30 | The off-axis three reflecting optical systems main supporting structure of large scale high specific stiffness truss-like |
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| CN105607216B true CN105607216B (en) | 2018-09-14 |
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Families Citing this family (9)
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| CN106647117B (en) * | 2017-01-23 | 2018-12-25 | 长光卫星技术有限公司 | The large-scale off-axis three anti-space camera truss-like main supporting structure of long-focus wide visual field |
| CN107804485B (en) * | 2017-09-27 | 2020-04-07 | 北京空间飞行器总体设计部 | Support between all-carbon fiber composite material device |
| CN109557633B (en) * | 2018-12-12 | 2024-05-31 | 中国科学院西安光学精密机械研究所 | Carbon fiber support truss connecting joint and support truss of space optical remote sensor |
| CN109752903B (en) * | 2018-12-29 | 2020-10-27 | 中国科学院长春光学精密机械与物理研究所 | Truss structure for remote sensing camera and assembling method thereof |
| CN109737122A (en) * | 2018-12-29 | 2019-05-10 | 中国科学院长春光学精密机械与物理研究所 | The reinforcement means of carbon fiber bar and joint structure |
| CN111025612B (en) * | 2019-11-15 | 2021-05-14 | 中国科学院长春光学精密机械与物理研究所 | Low-cost and small-sized space remote sensing camera |
| CN110967113B (en) * | 2019-12-23 | 2021-11-02 | 中国科学院长春光学精密机械与物理研究所 | Spectrum appearance bearing structure |
| CN112666693B (en) * | 2021-01-15 | 2022-04-15 | 长光卫星技术股份有限公司 | Stress-free assembly method for truss type main bearing structure of large off-axis three-phase inverter |
| CN112965324B (en) * | 2021-03-24 | 2022-02-18 | 中国科学院西安光学精密机械研究所 | Carbon fiber truss body assembling and adjusting device and process based on gluing error compensation |
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