CN205301684U - Secondary mirror bearing structure - Google Patents
Secondary mirror bearing structure Download PDFInfo
- Publication number
- CN205301684U CN205301684U CN201521052150.3U CN201521052150U CN205301684U CN 205301684 U CN205301684 U CN 205301684U CN 201521052150 U CN201521052150 U CN 201521052150U CN 205301684 U CN205301684 U CN 205301684U
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- CN
- China
- Prior art keywords
- secondary mirror
- connecting rod
- supporting structure
- ring
- gable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model belongs to the technical field of the space optics, especially, relate to the coaxial reflective secondary mirror bearing structure that can be applicable to various types of telescopes, space camera. It comprises triangle -shaped subtotal I shape part including time microscope base, secondary mirror connecting rod, secondary mirror go -between, secondary mirror connecting rod shape, can satisfy that the quality is light, specific rigidity is high, block and be out of shape the requirement of hanging down than little and dead weight.
Description
Technical field
This utility model belongs to space optics technical field, particularly relates to a kind of axis reflector formula secondary mirror supporting structure that can be applicable to various types of telescopes, space camera.
Background technology
In axis reflector formula system, secondary mirror is in light path, and the status requirement between primary and secondary mirror is very high, this just to secondary mirror support design have higher requirement, meet simultaneously lightweight, rigidity is high, block the requirement that little deformation induced by gravity is little.
Although traditional single panel type I type structure or wedge structure are lightweight, but rigidity is less, therefore, in order to ensure rigidity, will necessarily increase the physical dimension of support bar, and then it is big to cause blocking change, and even deformation induced by gravity increases.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of novel secondary mirror supporting structure, it is possible to meet light weight, specific stiffness is high, the ratio of obstruction is little and deformation induced by gravity is low requirement.
The technical solution adopted in the utility model is:
A kind of secondary mirror supporting structure is provided, ring is connected including time microscope base, secondary mirror connecting rod, secondary mirror, it is characterized in that secondary mirror connecting rod shape is made up of gable and I shape part, secondary microscope base is connected with the I shape part of secondary mirror connecting rod, and secondary mirror connects ring and is connected with the gable of secondary mirror connecting rod.
The I shape part of secondary mirror connecting rod and the junction point place of gable, the folding angle of gable is 20 �㡫24 ��. Junction point connects the vertical dimension of ring to secondary mirror, and to account for the ratio of secondary mirror connecting rod length be 60%��70%.
Secondary mirror connecting rod is connected between ring with secondary mirror to be provided with secondary mirror connecting rod and repaiies and cut pad, and secondary mirror connects ring and secondary mirror group is arranged below repaiies and cut pad.
Secondary microscope base, secondary mirror connect ring and secondary mirror connecting rod adopts invar material, and secondary mirror connecting rod is repaiied to cut to pad to repair with secondary mirror group to cut to pad and adopted titanium alloy.
This utility model compared with prior art provides the benefit that:
1) secondary mirror support bar rigidity is strong. Being determined that secondary mirror support bar is longer by primary and secondary mirror interval, secondary mirror supporting structure forms a cantilever design, it is therefore desirable to secondary mirror support bar has higher rigidity. For secondary mirror support bar, the part away from secondary mirror bears moment of flexure relatively greatly, therefore secondary mirror supporting structure rigidity will be made to be greatly improved this partial design triangularity enclosed construction.
2) Heat stability is good. Secondary mirror supporting structure adopts invar material to make, and thermal coefficient of expansion is low, varies with temperature little, it is possible to ensure Performance of Optical System well.
3) machinability is good. In secondary mirror supporting structure, each part is processed respectively, not only reduces cost, and the processing of each part is also easier to realize.
4) block little. Due to secondary mirror supporting bar structure good rigidity, therefore, being perpendicular to the section of optical axis direction, the thickness of secondary mirror support bar can be substantially reduced.
Accompanying drawing explanation
Fig. 1 this utility model secondary mirror supporting structure axonometric chart
Fig. 2 this utility model secondary mirror supporting structure top view
Fig. 3 this utility model secondary mirror connecting rod axonometric chart
Description of reference numerals: 1-microscope base, 2-secondary mirror, 3-secondary mirror connecting rod, 4-secondary mirror connects ring, and 5-secondary mirror connecting rod is repaiied and cut pad, and 6-secondary mirror group is repaiied and cut pad, 31-microscope base link, and 32-secondary mirror connects ring end
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further described in detail.
This utility model provides a kind of secondary mirror supporting structure, as depicted in figs. 1 and 2, connect ring 4 including time microscope base 1, the secondary mirror connecting rod 3 of 2, three circumference uniform distributions of secondary mirror, secondary mirror, secondary mirror connecting rod repair cut pad 5, secondary mirror group is repaiied and is cut pad 6.
As shown in Figure 1, first secondary microscope base 3, three secondary mirror connecting rods of 1, three secondary mirror connecting rods are repaiied and cut pad 5 and secondary mirror is connected ring 4 and connected by pre-fastening moment by screw, repair during connection and grind secondary mirror connecting rod and repair and cut pad 5, ensure that three secondary mirror connecting rods 3 do not suppress strength when screw pretension, unstressed, adjust time microscope base 1 and the concentricity of secondary mirror connection ring 4 simultaneously.
The structure top view assembled is as shown in Figure 2. In order to reduce blocking of system, at optical direction, secondary mirror connecting rod width and optical axis are generally aligned in the same plane.
The structure of secondary mirror connecting rod 3 is as shown in Figure 3, the junction point place of I shape part and gable, the folding angle of gable is 21 ��, junction point connects the vertical dimension of ring to secondary mirror, and to account for the ratio of secondary mirror connecting rod length be 61.8%, owing to primary and secondary mirror space requirement is significantly high, configuration relative complex simultaneously, therefore secondary mirror connecting rod 3 adopts the invar material that thermal coefficient of expansion is little, adds the flatness and the depth of parallelism that ensure that time microscope base link 31 and secondary mirror connect ring end 32 man-hour.
After said modules has combined, secondary mirror 2 is loaded in time microscope base 1, connect with glue is fixing. Grind secondary mirror group and repair by repairing and cut pad 6, it is ensured that the position relationship between primary and secondary mirror, finally, by screw, whole secondary mirror supporting structure is connected to system structure, it is achieved whole system integrated.
Claims (6)
1. a secondary mirror supporting structure, connects ring including time microscope base, secondary mirror connecting rod, secondary mirror, it is characterised in that: described secondary mirror connecting rod shape is made up of gable and I shape part;
Secondary microscope base is connected with the I shape part of secondary mirror connecting rod, and secondary mirror connects ring and is connected with the gable of secondary mirror connecting rod.
2. a kind of secondary mirror supporting structure according to claim 1, it is characterised in that: the I shape part of described secondary mirror connecting rod and the junction point place of gable, the folding angle of gable is 20 �㡫24 ��.
3. a kind of secondary mirror supporting structure according to claim 2, it is characterised in that: the ratio that described junction point accounts for secondary mirror connecting rod length to the vertical dimension of secondary mirror connection ring is 60%��70%.
4. a kind of secondary mirror supporting structure according to claim 1, it is characterised in that: described secondary mirror connecting rod is connected between ring with secondary mirror to be provided with secondary mirror connecting rod and repaiies and cut pad.
5. a kind of secondary mirror supporting structure according to claim 1, it is characterised in that: described secondary mirror connects ring and secondary mirror group is arranged below repaiies and cut pad.
6. a kind of secondary mirror supporting structure according to claim 1 or 4 or 5, it is characterised in that: described time microscope base, secondary mirror connect ring and secondary mirror connecting rod employing invar material, and secondary mirror connecting rod is repaiied to cut to pad to repair with secondary mirror group to cut to pad and adopted titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052150.3U CN205301684U (en) | 2015-12-16 | 2015-12-16 | Secondary mirror bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521052150.3U CN205301684U (en) | 2015-12-16 | 2015-12-16 | Secondary mirror bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205301684U true CN205301684U (en) | 2016-06-08 |
Family
ID=56431009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521052150.3U Withdrawn - After Issue CN205301684U (en) | 2015-12-16 | 2015-12-16 | Secondary mirror bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205301684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445894A (en) * | 2015-12-16 | 2016-03-30 | 中国科学院西安光学精密机械研究所 | Secondary mirror supporting structure |
| CN107037566A (en) * | 2017-05-24 | 2017-08-11 | 北京空间机电研究所 | A kind of segmented secondary mirror high stability supporting construction |
-
2015
- 2015-12-16 CN CN201521052150.3U patent/CN205301684U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445894A (en) * | 2015-12-16 | 2016-03-30 | 中国科学院西安光学精密机械研究所 | Secondary mirror supporting structure |
| CN105445894B (en) * | 2015-12-16 | 2017-12-05 | 中国科学院西安光学精密机械研究所 | A kind of secondary mirror supporting structure |
| CN107037566A (en) * | 2017-05-24 | 2017-08-11 | 北京空间机电研究所 | A kind of segmented secondary mirror high stability supporting construction |
| CN107037566B (en) * | 2017-05-24 | 2020-03-24 | 北京空间机电研究所 | High stability bearing structure of sectional type secondary mirror |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20171205 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20171205 |