CN102436054B - Composite primary reflector supporting device for large telescope - Google Patents
Composite primary reflector supporting device for large telescope Download PDFInfo
- Publication number
- CN102436054B CN102436054B CN201110449417.2A CN201110449417A CN102436054B CN 102436054 B CN102436054 B CN 102436054B CN 201110449417 A CN201110449417 A CN 201110449417A CN 102436054 B CN102436054 B CN 102436054B
- Authority
- CN
- China
- Prior art keywords
- support
- supporting
- reflection mirror
- principal reflection
- radial
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Telescopes (AREA)
Abstract
The invention discloses a composite primary reflector supporting device for a large telescope, relates to the technical field of photoelectric observation equipment, and solves the problems that supporting force of the conventional primary reflector supporting mechanism greatly influences surface deformation of a primary reflector and influences the imaging quality when the primary reflector has a large caliber. In the device, a radial floating supporting mechanism and a back floating supporting mechanism support the primary reflector through a lever mechanism, a supporting structure of the primary reflector is simplified through a counterweight along axial and radial component force of the primary reflector, the whole weight is reduced, and the counterweight automatically meets the requirement on the supporting force through direction of the supporting force provided by a supporting rod along posture change of the primary reflector. Steel ball transition is adopted between a radial supporting rod and a bushing and between a back supporting rod and the bushing, so that two movable supporting rods are in rolling friction with a fixing piece; therefore, the supporting device has a function of automatically regulating temperature change, and extra stress of the primary reflector given by the temperature change is avoided.
Description
Technical field
The present invention relates to the photoelectric observation equipment technical field, be specifically related to a kind of large telescope principal reflection mirror bracing or strutting arrangement.
Background technology
Along with developing rapidly of survey of deep space, observation and control technology field, the image quality of photoelectric measurement equipment, operating distance index are proposed high requirement, thereby heavy caliber telescope demand is constantly increased.Principal reflection mirror in the telescope is the critical component of photoelectric measurement equipment, and its face shape is to the image quality decisive role of optical system.The support of principal reflection mirror is often adopted different structures according to the size of its diameter.The ground photoelectric measurement equipment of 500mm to 700mm bore adopts traditional back three-point fix multi-point support mostly and the mode that supports at the radially-arranged weight of principal reflection mirror circumference can meet the demands.Be the telescope of meter level to bore, support surface figure accuracy for improving, then need the radial support guarantee of more floating.And because the supporting efficiency problem, the circumference of principal reflection mirror has only very little one section zone to be fit to do radial support to use, and therefore need move to the hole, back to the radial support of large scale principal reflection mirror and carry out.Move to one of major issue that the radially weight in hole, back support to need solves and be and to adapt to the micro-relative displacement that fixed base plate and principal reflection mirror bring owing to temperature variation, guaranteeing that fixed base plate does not have additional forces to principal reflection mirror, secondly is the utilization ratio that improves weight weight.The prior art that approaches the most with the present invention is that the diameter that Changchun Institute of Optics, Fine Mechanics and Physics, CAS develops is the supporting mechanism of the telescopical principal reflection mirror of 600mm, as shown in Figure 1, comprise principal reflection mirror 1, base for supporting part, weight radial support mechanism, back support section.Wherein base for supporting partly comprises base 6, centralized positioning axle 3, center pit axle sleeve 2, weight through hole 9; Weight radial support mechanism comprises that side supporting disk 4, side support steel ball 5, weight linear meter 7, support 10, weight 8; Back of the body support section comprises that supporting seat 11, the back of the body support steel ball 12, back of the body supporting disk 13.
In the weight radial support mechanism, formed by four identical in structure weight mechanisms, when principal reflection mirror 1 is horizontal, respectively there are a of mechanism, b in the top of principal reflection mirror, center line both sides, respectively there are the c of mechanism, d in the below of principal reflection mirror, center line both sides, two weight mechanisms of each of principal reflection mirror above and below are that a, b and c, d are symmetric offset spread, as shown in Figure 2.Back of the body support section has three strong points to become 120 ° of backs that are distributed in principal reflection mirror; Base is a cylindrical frame, be installed with the centralized positioning axle in the center of bottom, the upper end of centralized positioning axle puts in the axle sleeve that is installed in the principal reflection mirror center pit, when principal reflection mirror is horizontal, 3 of back of the body support are evenly distributed on the same diameter circumference in principal reflection mirror back, supporting seat is installed on the base, the upper surface of supporting disk withstands on the back of principal reflection mirror, in the groove of supporting seat upper end the support steel ball is housed, the lower surface of supporting disk compresses with the support steel ball and contacts, the weight of weight mechanism passes the weight through hole on the base, support is fixed on the base, and the bottom plate hole of support is enclosed within the top of weight, and the bottom of movement weight rod is injected in the mesopore of weight, the upper end is by axis hole installation side supporting disk, and the arc surface of side supporting disk withstands on the circumferential edges of principal reflection mirror.
The subject matter that this principal reflection mirror supporting mechanism exists is: side supporting component limited amount system, and efficient is not high, and anchorage force is bigger to the face type deformation effect of principal reflection mirror, when the principal reflection mirror bore is big, can influence image quality.
Summary of the invention
The present invention is bigger to the face type deformation effect of principal reflection mirror for the anchorage force that solves existing principal reflection mirror supporting mechanism, when the principal reflection mirror bore is big, can influence the problem of image quality, provides a kind of large telescope principal reflection mirror compound bracing or strutting arrangement.
The compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror, this device comprise base for supporting part and fixing back support section; Described base for supporting partly comprises base, center pit axle sleeve, centralized positioning axle; Described base is cylindrical, and at the center of base dead center locating shaft, the upper end of centralized positioning axle puts in the principal reflection mirror center pit axle sleeve; Fixing back of the body support section comprises back of the body supporting seat, supports steel ball, carries on the back supporting disk; Described bracing or strutting arrangement also comprises radially and the compound support section in back; Describedly radially be divided into radial floating supporting mechanism and the back supporting mechanism that floats with the compound support section in back, described radial floating supporting mechanism comprises lining, radial strut, radial support steel ball, ballast box, radially balancing weight, bracing frame, radial support stationary shaft; The unsteady supporting mechanism in back comprises that the back of the body supports steel ball, back of the body support bar and back of the body support balance weight assembly;
Described lining is installed in the blind hole at principal reflection mirror back, support frame as described above is fixed on the base, radial strut is that fulcrum acts on lining upper support principal reflection mirror by the radial support steel ball with the radial support stationary shaft, and adjusting radially, the weight of balancing weight provides radial support power to main anti-mirror;
Back of the body supporting seat in the described fixedly back of the body support section is installed on the base, in the groove of the back of the body supporting seat upper end support steel ball is housed, the lower surface of described back of the body supporting disk compresses with the support steel ball and contacts, the upper surface of described back of the body supporting disk and principal reflection mirror back compress, it is support with ballast box in the radial floating supporting mechanism that back of the body support steel ball, back of the body support bar and the back of the body in the unsteady supporting mechanism in described back supports balance weight assembly, carries on the back support bar and acts on lining upper support principal reflection mirror by the support of the back of the body in the groove of top steel ball; Provide axial support power by the weight of adjusting back of the body support balancing weight to main anti-mirror.
Principle of work of the present invention: the unsteady supporting mechanism in the radial floating supporting mechanism in the device of the present invention and back all adopts leverage that principal reflection mirror is supported, take full advantage of counterweight and radially component axial along principal reflection mirror, make the supporting construction of principal reflection mirror obtain simplifying, overall weight reduces, can determine the number of support as required at the principal reflection mirror back, to control the size of each anchorage force; Counterweight changes with the principal reflection mirror attitude by the anchorage force direction that support bar provides, and adapts to the demand to anchorage force automatically; Adopting the steel ball transition between radial strut and the lining, between back supporting bar and the lining, make between two movable support rods and the fixture and form rolling friction, make structure of the present invention have automatic regulatory function to temperature variation, thereby avoid temperature variation to give principal reflection mirror extra stress.
Beneficial effect of the present invention: the face type that the present invention reduces principal reflection mirror to greatest extent changes, improves image quality, design a kind of with principal reflection mirror radial support mechanism with carry on the back the supporting mechanism that supporting mechanism is combined with each other.The unsteady supporting mechanism in radial floating supporting mechanism and back all adopts leverage that principal reflection mirror is supported, and takes full advantage of counterweight and radially component axial along principal reflection mirror, and device of the present invention has improved image quality.
Description of drawings
Fig. 1 is the supporting construction synoptic diagram of principal reflection mirror in the prior art;
Fig. 2 is the support concept figure of principal reflection mirror in the prior art;
Fig. 3 is the structural representation of the compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror of the present invention;
Fig. 4 is the schematic diagram of the compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror of the present invention.
Among the figure: 1, principal reflection mirror, 2, the center pit axle sleeve, 3, the centralized positioning axle, 4, the side supporting disk, 5, side supports steel ball, 6, base, 7, weight linear meter, 8, weight, 9, the weight through hole, 10, support, 11, supporting seat, 12, the back of the body supports steel ball, 13, back of the body supporting disk, 14, lining, 15, radial strut, 16, the radial support steel ball, 17, back of the body support bar, 18, ballast box, 19, the back of the body supports balancing weight, 20, the back of the body supports weight linear meter, 21, back of the body support fixation axle, 22, balancing weight radially, 23, screw, 24, bracing frame, 25, the radial support stationary shaft, 26, back of the body supporting seat, 27, support steel ball.
Embodiment
In conjunction with Fig. 3 and Fig. 4 present embodiment is described, the compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror, this device comprise principal reflection mirror 1, base for supporting part, fixedly the back support section and radially with the compound support section in back.Wherein base for supporting partly comprises base 6, centralized positioning axle 3, center pit axle sleeve 2; Fixedly the back support section comprises back of the body supporting seat 26, supports steel ball 27, carries on the back supporting disk 13; Radially be divided into radial floating supporting mechanism and the back supporting mechanism that floats with the compound support section in back, described radial floating supporting mechanism comprises lining 14, radial strut 15, radial support steel ball 16, ballast box 18, radially balancing weight 22, bracing frame 24 and radial support stationary shaft 25; The unsteady supporting mechanism in back comprises back of the body support steel ball 12, back of the body support bar 17, back of the body support balancing weight 19, back of the body support weight linear meter 20, back of the body support fixation axle 21, screw 23.
The support of the described large-scale principal reflection mirror 1 of present embodiment can comprise three fixing back of the body support sections and several radially with the compound support section in back.Distribution situation is in conjunction with Fig. 4, three fixed support point e, f, g is 120 ° of backs that are evenly distributed on principal reflection mirror 1 at same circumference, compound strong point h floats, i, j, l, m and n not only left-right symmetric but also symmetrical distribution up and down, supporting mechanism and the shared lining 14 of radial floating supporting mechanism float at described back, lining 14 is installed in the blind hole at principal reflection mirror 1 back, base 6 is cylindrical frames, be installed with centralized positioning axle 3 in the center, the upper end of centralized positioning axle 3 puts in the axle sleeve that is installed in principal reflection mirror 1 center pit, plays the effect of principal reflection mirror 1 being carried out centralized positioning.
When principal reflection mirror 1 was in vertical state (being the optical axis level), the radial floating supporting mechanism was played a supporting role to principal reflection mirror 1.Bracing frame 24 is fixed on the base 2, and radial strut 15 acts on lining 14 upper support principal reflection mirrors 1 by radial support steel ball 16.The weight of balancing weight 22 can provide required radial support power to principal reflection mirror 1 by theoretical value by adjusting radially.
When being horizontal (be optical axis straight up) at principal reflection mirror, fixing back of the body support section and the back supporting mechanism that floats is played a supporting role to principal reflection mirror 1.Fixedly the back of the body supporting seat 26 of back support is installed on the base, be equipped with in the groove of supporting seat upper end and support steel ball 27, the lower surface of back of the body supporting disk 13 compresses with support steel ball 27 and contacts, and lower surface and principal reflection mirror 1 back of back of the body supporting disk 13 compress, and play the effect of support and axial location; The unsteady supporting mechanism in back is support with the ballast box 18 of radial floating supporting mechanism, the back of the body supports balancing weight 19 and screw 23 is fixed on the back of the body support weight linear meter 20, the back of the body supports weight linear meter 20 and on optical axis direction back of the body support bar 17 is applied acting force around 21 rotations of back of the body support fixation axle and by screw 23, and back of the body support bar 17 supports steel ball 12 by the back of the body in the groove of top and acts on lining 14 upper support principal reflection mirrors 1.For keeping the balance of back of the body support bar 17, use two groups of back ofs the body to support balance weight assembly.Because back of the body support bar 17 makes relative slip smooth and easy fluent so steel ball is housed between two bars in the middle of being enclosed within by radial strut 15.Can provide required axial support power to principal reflection mirror 1 by theoretical value by the weight of adjusting back of the body support balancing weight 19.So, compound supporting component namely can by radial floating supporting mechanism and back float support portion mechanism respectively balance principal reflection mirror 1 along optical axis (namely axially) and perpendicular to the partical gravity of optical axis (both radially).
Claims (3)
1. compound bracing or strutting arrangement of large telescope principal reflection mirror, this device comprise base for supporting part and fixing back support section; Described base for supporting partly comprises base (6), center pit axle sleeve (2), centralized positioning axle (3); Described base (6) is cylindrical, and at the center of base (6) dead center locating shaft (3), the upper end of centralized positioning axle (3) puts in principal reflection mirror (1) the center pit axle sleeve (2); Fixing back of the body support section comprises back of the body supporting seat (26), supports steel ball (27), carries on the back supporting disk (13); It is characterized in that described bracing or strutting arrangement also comprises radially and the compound support section in back; Describedly radially be divided into radial floating supporting mechanism and the back supporting mechanism that floats with the compound support section in back, described radial floating supporting mechanism comprises lining (14), radial strut (15), radial support steel ball (16), ballast box (18), radially balancing weight (22), bracing frame (24), radial support stationary shaft (25); The unsteady supporting mechanism in back comprises that the back of the body supports steel ball (12), back of the body support bar (17) and back of the body support balance weight assembly;
Described lining (14) is installed in the blind hole at principal reflection mirror (1) back, support frame as described above (24) is fixed on the base (6), radial strut (15) is that fulcrum acts on lining (14) upper support principal reflection mirror (1) by radial support steel ball (16) with radial support stationary shaft (25), and adjusting radially, the weight of balancing weight (22) provides radial support power to main anti-mirror (1);
Back of the body supporting seat (26) in the described fixedly back of the body support section is installed on the base (6), be equipped with in the groove of back of the body supporting seat (26) upper end and support steel ball (27), the lower surface of described back of the body supporting disk (13) compresses with support steel ball (27) and contacts, the upper surface of described back of the body supporting disk (13) and principal reflection mirror (1) back compress, the back of the body in the unsteady supporting mechanism in described back supports steel ball (12), it is support with ballast box (18) in the radial floating supporting mechanism that back of the body support bar (17) and the back of the body support balance weight assembly, and back of the body support bar (17) supports steel ball (12) by the back of the body in the groove of top and acts on lining (14) upper support principal reflection mirror (1); Provide axial support power by the weight of adjusting back of the body support balancing weight (19) to main anti-mirror (1).
2. the compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror according to claim 1, it is characterized in that the back of the body in the unsteady supporting mechanism in described back supports balance weight assembly and comprises that the back of the body supports balancing weight (19), back of the body support weight linear meter (20), back of the body support fixation axle (21) and screw (23); Described back of the body support balancing weight (19) and screw (23) are fixed on the back of the body and support on the weight linear meter (20), and the described back of the body supports weight linear meter (20) and on the optical axis direction of principal reflection mirror (1) back of the body support bar (17) applied acting force around back of the body support fixation axle (21) rotation and by screw (23).
3. the compound bracing or strutting arrangement of a kind of large telescope principal reflection mirror according to claim 1 and 2 is characterized in that, the back of the body in the unsteady supporting mechanism in described back supports the balance weight assembly symmetry and is fixed on the radially both sides of balancing weight (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449417.2A CN102436054B (en) | 2011-12-29 | 2011-12-29 | Composite primary reflector supporting device for large telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449417.2A CN102436054B (en) | 2011-12-29 | 2011-12-29 | Composite primary reflector supporting device for large telescope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102436054A CN102436054A (en) | 2012-05-02 |
| CN102436054B true CN102436054B (en) | 2013-08-21 |
Family
ID=45984190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110449417.2A Expired - Fee Related CN102436054B (en) | 2011-12-29 | 2011-12-29 | Composite primary reflector supporting device for large telescope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102436054B (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854604B (en) * | 2012-08-29 | 2014-11-19 | 中国科学院长春光学精密机械与物理研究所 | Telescope primary mirror center radial positioning mechanism and assembly and adjustment method thereof |
| CN103018878A (en) * | 2012-12-21 | 2013-04-03 | 中国科学院长春光学精密机械与物理研究所 | Reflector supporting structure with temperature compensation function |
| CN103293633B (en) * | 2013-07-02 | 2015-03-04 | 中国工程物理研究院总体工程研究所 | Adjustable support device used for obliquely placed big-caliber reflecting mirror |
| CN103399389B (en) * | 2013-07-30 | 2015-08-19 | 中国科学院长春光学精密机械与物理研究所 | A kind of primary mirror Floatable supporting mechanism with oriented film |
| CN103499869B (en) * | 2013-09-30 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | A kind of principal reflection mirror erecting equipment and method |
| CN103529537B (en) * | 2013-10-21 | 2016-01-20 | 中国科学院光电技术研究所 | A kind of supporting construction of planar reflection mirror on movement platform |
| CN104267481B (en) * | 2014-10-23 | 2016-08-24 | 中国工程物理研究院总体工程研究所 | A kind of large caliber reflecting mirror back support device |
| CA2974764C (en) * | 2015-01-29 | 2023-07-04 | Idom, S.A.U. | Integrated system for precision actuation and support for large mobile structures |
| CN104777587B (en) * | 2015-04-20 | 2017-07-14 | 中国科学院长春光学精密机械与物理研究所 | A kind of primary mirror location and installation mechanism |
| CN105910572B (en) * | 2016-06-12 | 2018-06-29 | 中国科学院上海技术物理研究所 | A kind of contact force controllable type speculum detects floating support device |
| CN106772918B (en) * | 2016-12-20 | 2019-02-19 | 中国科学院长春光学精密机械与物理研究所 | A kind of adaptive high-precision mirror body lateral support mechanism of angle |
| CN107831584B (en) * | 2017-11-01 | 2022-10-04 | 中国科学院西安光学精密机械研究所 | Composite support structure, support and adjustment method of large-aperture reflector |
| CN109254376A (en) * | 2018-10-22 | 2019-01-22 | 哈尔滨工业大学 | A kind of special type lens dead axle stage apparatus |
| CN110412714B (en) * | 2019-06-27 | 2022-02-01 | 北京空间机电研究所 | Large-diameter reflector supporting mechanism |
| CN110989129B (en) * | 2019-12-24 | 2021-06-01 | 中国科学院长春光学精密机械与物理研究所 | Telescope primary mirror supporting mechanism |
| CN112526742A (en) * | 2020-12-15 | 2021-03-19 | 中国科学院长春光学精密机械与物理研究所 | Large-caliber telescope supporting component |
| CN113263484B (en) * | 2021-05-31 | 2022-08-09 | 中科院南京耐尔思光电仪器有限公司 | Workbench and method for replacing bush support body of large-caliber optical lens body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU667936A1 (en) * | 1977-02-09 | 1979-06-15 | Предприятие П/Я А-1705 | Device for vertical relieving of telescope mirror |
| CN2613773Y (en) * | 2003-04-10 | 2004-04-28 | 周东升 | Reflection telescope |
| CN101482643B (en) * | 2009-02-23 | 2010-09-22 | 中国科学院光电技术研究所 | Bidimensional large-diameter fast control reflection mirror |
-
2011
- 2011-12-29 CN CN201110449417.2A patent/CN102436054B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102436054A (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102436054B (en) | Composite primary reflector supporting device for large telescope | |
| CN103963032A (en) | Large space optical remote sensor four-dimensional regulating device | |
| CN102607482B (en) | Aligning and levelling device for rotating platform of ultra-precise measuring machine | |
| CN100504486C (en) | Large diameter expansible primary lens precision locking apparatus for spatial observation optical remote sensor | |
| CN103955043A (en) | Five-dimensional high-precision platform for installation testing of large gratings | |
| CN107942622A (en) | A kind of three-freedom degree precision based on double-flexibility pair adjusts parallel institution | |
| CN102162708B (en) | Cannon barrel axial line positioner | |
| CN205327440U (en) | Electric steering engine radial force loading device | |
| CN103792636B (en) | A kind of optical lens aligning device | |
| CN103697816A (en) | Linear motion double-feedback structure composed of angle measurement sensor and length measurement sensor | |
| CN100565162C (en) | A kind of multifunctional adjustment device for detecting mobile optical instrument | |
| CN102094538B (en) | Self-steering elevator stage | |
| CN102706797B (en) | Mechanical system of device for measuring rebound rate of football on football playground | |
| CN206373530U (en) | Shape moulding bed is adjusted in a kind of numerical control | |
| CN209195066U (en) | A kind of adjustable steel lid boom support | |
| CN104649184A (en) | Moving wheel assembly and platform using same | |
| CN105042293A (en) | Leveling mechanism for measuring instruments | |
| CN102706798A (en) | Football rebound rate measuring device for football fields | |
| CN103969845B (en) | Polypody optics dress school heavy carrier gas over draft support arrangement | |
| CN102615301A (en) | Elastic boring bar | |
| CN207601508U (en) | Three-freedom degree precision based on double-flexibility pair adjusts parallel institution | |
| CN202013138U (en) | Cannon barrel axis positioning device | |
| CN219808399U (en) | BIM-based assembled building element | |
| CN221007968U (en) | Main mirror supporting device of large-caliber collimator | |
| CN202360696U (en) | Ballscrew righting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |