CN112526742A - Large-caliber telescope supporting component - Google Patents
Large-caliber telescope supporting component Download PDFInfo
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- CN112526742A CN112526742A CN202011470064.XA CN202011470064A CN112526742A CN 112526742 A CN112526742 A CN 112526742A CN 202011470064 A CN202011470064 A CN 202011470064A CN 112526742 A CN112526742 A CN 112526742A
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- positioning shaft
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 82
- 238000000034 method Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims 2
- 239000004429 Calibre Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 229910001374 Invar Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
Abstract
A support assembly of a primary mirror of a large-aperture telescope comprises a back support assembly and a peripheral support assembly, wherein the primary mirror is arranged at the top of the back support assembly through a primary mirror central positioning shaft sleeve, the peripheral support assembly is arranged at the bottom of the back support assembly, and the back support assembly comprises a back cover plate, a back positioning shaft sleeve and a back positioning shaft sleeve connecting cross rod; the back cover plate is uniformly provided with an even number of positioning holes, back positioning shaft sleeves matched with the positioning holes are respectively arranged in the positioning holes, and the back positioning shaft sleeve is connected with an adjacent back positioning shaft sleeve through a back positioning shaft sleeve connecting cross rod; the peripheral supporting assembly comprises an even number of peripheral positioning grooves, peripheral positioning clamping arms and peripheral supporting cushion blocks, grooves which are matched with the peripheral positioning grooves and used for bonding the wedge-shaped surface are formed in the bottom of the back cover plate, the peripheral positioning grooves are connected with one adjacent peripheral positioning groove through the peripheral positioning clamping arms, and the peripheral supporting cushion blocks are arranged in the peripheral positioning grooves. The supporting component can realize accurate positioning.
Description
Technical Field
The application relates to the technical field of space remote sensing, in particular to a large-caliber telescope supporting assembly.
Background
The technical field of space remote sensing is one of several key technical fields which are fiercely competitive in various developed countries in the world nowadays. Along with the continuous improvement of the resolution and the detection sensitivity of the space remote sensor, the caliber of the reflector is larger and larger, and the requirement on the support performance of the reflector is higher and higher. The reflector assembly is a key part of a space optical remote sensor, and generally requires good thermal and mechanical properties, and the quality of the assembly is limited by strict requirements in view of emission cost. The performance of the reflector assembly is directly related to the performance of the space remote sensor.
The installation of heavy-calibre telescope supporting component, difficult point just lie in the accurate bonding of invar just fills up on the support hole and the peripheral mirror body of primary mirror, and the position of traditional heavy-calibre telescope supporting component installation dependence artifical manual adjustment invar just fills up, and is consuming time long, and the precision is low, serious damage mirror body even.
Disclosure of Invention
Based on this, this application provides one kind can realize accurate location, primary mirror subassembly bonding in-process can not take place displacement, simple structure, with the primary mirror body zero contact be used for heavy-calibre telescope primary mirror supporting component.
In order to solve the above technical problems, the present application provides, on one hand, a support assembly for a primary mirror of a large-caliber telescope, comprising a back support assembly and a peripheral support assembly, wherein the back support assembly is provided with a primary mirror central positioning shaft sleeve, the primary mirror is arranged at the top of the back support assembly through the primary mirror central shaft sleeve, the back of a mirror body of the primary mirror is uniformly provided with a plurality of support holes, the peripheral support assembly is arranged at the bottom of the back support assembly,
the back support assembly comprises a back cover plate, a back positioning shaft sleeve and a back positioning shaft sleeve connecting cross rod; the back cover plate is uniformly provided with positioning holes corresponding to the supporting holes, the positioning holes are respectively internally provided with the back positioning shaft sleeves matched with the positioning holes, and the back positioning shaft sleeve is connected with one back positioning shaft sleeve adjacent to the back positioning shaft sleeve through the back positioning shaft sleeve connecting cross rod;
the peripheral supporting assembly comprises 6 peripheral positioning grooves, peripheral positioning clamping arms and peripheral supporting cushion blocks, grooves which are matched with the peripheral positioning grooves and used for bonding wedge-shaped surfaces are formed in the bottom of the back cover plate, the peripheral positioning grooves are connected with one adjacent peripheral positioning groove through the peripheral positioning clamping arms, and the peripheral supporting cushion blocks are arranged in the peripheral positioning grooves.
Preferably, the primary mirror centering sleeve is coaxial with a central axis of the back support assembly.
Preferably, the two ends of the back positioning shaft connecting cross rod are respectively provided with a threaded hole corresponding to the back positioning shaft sleeve.
Preferably, the number of the positioning holes is 6.
Preferably, the shoe positioning slot is a Z-shaped slot.
Preferably, the supporting cushion block positioning clamping arm is a V-shaped clamping arm.
The application also provides a positioning method of the primary mirror supporting component of the large-aperture telescope, which comprises the following steps:
s1, positioning the back support assembly so that the back cover plate is mounted with the primary mirror:
s2, positioning of the peripheral supporting assembly:
in step S1, the method specifically includes the following steps:
s11, placing the mirror surface of the main mirror of the support component to be installed downwards;
s12, placing the back positioning shaft sleeve in the positioning hole of the back cover plate through the screw hole on the back positioning shaft sleeve;
s13, placing the back cover plate on the back of the main mirror through the back positioning shaft sleeve, and determining the relative position of the main mirror and the back cover plate through the main mirror central positioning shaft sleeve;
s14, connecting a cross rod with a threaded hole through a back positioning shaft sleeve to connect the back positioning shaft sleeve, so as to realize the positioning of the back positioning shaft sleeve on the main mirror body;
in step S2, the method specifically includes the following steps:
s21, uniformly arranging 6 grooves corresponding to the wedge-shaped surfaces at the bottom of the back cover plate, and placing the peripheral positioning Z-shaped groove in the grooves;
s22, connecting the peripheral positioning Z-shaped groove with a peripheral positioning V-shaped clamping arm;
and S23, placing the peripheral supporting cushion block in the peripheral positioning Z-shaped groove to realize the positioning of the peripheral supporting assembly.
Preferably, the peripheral positioning groove is a Z-shaped groove.
Preferably, the peripheral positioning clip arms are V-shaped clip arms.
The beneficial technical effect of this application:
the positioning method can be suitable for a large-caliber telescope system adopting a peripheral and back mixed supporting scheme and also suitable for a large-caliber telescope system adopting a back supporting scheme. This application utilizes the characteristics of the support scheme that present heavy-calibre telescope system adopted, when realizing the supporting component location, make full use of primary mirror and supporting component's characteristic, thereby made things convenient for greatly to fix a position primary mirror supporting component, and the skew can not take place for the positioning process, a latch closure ring, thereby effectively guaranteed the high accuracy location of primary mirror supporting component, simultaneously because the back invar just fills up the location axle sleeve and can make the circular apron in back have the certain distance with the primary mirror body, in addition above-mentioned guard action prevent pressing the cushion, can effectively avoid the primary mirror body to be crushed, guarantee the precision of primary mirror supporting component location.
Drawings
FIG. 1 is a bottom view of a primary mirror support assembly of a large aperture telescope according to an embodiment of the present disclosure;
FIG. 2 is a front view of a primary mirror support assembly of a large aperture telescope according to an embodiment of the present disclosure;
FIG. 3 is a top view of a primary mirror support assembly of the large aperture telescope according to the embodiment of the present application.
The meaning of the reference symbols in the drawings is:
1-a back cover plate; 2-back positioning shaft sleeve; 3-the back positioning shaft sleeve is connected with the cross rod; 4-peripheral positioning groove; 5-peripheral positioning clamping arms; 6-centering the bushing.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Example 1:
the embodiment of the application provides a supporting component of heavy-calibre telescope primary mirror, including back supporting component, peripheral supporting component, the primary mirror sets up back supporting component's top, peripheral supporting component sets up back supporting component's bottom, set up primary mirror center location axle sleeve (6) on the back supporting component, primary mirror center location axle sleeve (6) with back supporting component's center pin is coaxial.
The back support assembly comprises a back cover plate (1), a back positioning shaft sleeve (2) and a back positioning shaft sleeve connecting cross rod (3). 6 holes are uniformly formed in the back cover plate (1), and the back positioning shaft sleeves (2) matched with the holes are respectively arranged in the 6 holes; the back positioning shaft sleeve (2) can avoid the main mirror body from being crushed by the circular back cover plate (1), can effectively protect the main mirror body, and ensures the strength of the back of the main mirror body and the performance of the main mirror.
Specifically, the two ends of the back positioning shaft sleeve connecting cross rod (3) are respectively provided with a threaded hole corresponding to the back positioning shaft sleeve (2), so that the back positioning shaft sleeve (2) is connected with the back positioning shaft sleeve connecting cross rod (3) through the back positioning shaft sleeve (2) adjacent to the back positioning shaft sleeve.
Peripheral supporting component includes 6 peripheral constant head tank (4), peripheral location arm lock (5) and peripheral supporting pad, back apron (1) bottom sets up 6 recesses that are used for bonding the wedge face, peripheral constant head tank (4) are respectively according to back apron (1) bottom the recess distributes, can realize quick alignment and spacing function, provides the basis for heavy-calibre telescope primary mirror supporting component's location.
The peripheral positioning groove (4) is connected with one adjacent peripheral positioning groove (4) through a peripheral positioning clamping arm (5), and the peripheral supporting cushion block is arranged in the peripheral positioning groove (4).
Specifically, the peripheral positioning groove (4) is a Z-shaped groove, the peripheral positioning clamping arms (5) are V-shaped clamping arms, and the back cover plate is circular.
Example 2:
the embodiment of the application provides a positioning method of a primary mirror supporting component of a large-aperture telescope, which comprises the following specific steps:
1. positioning of the back support assembly, with the back cover plate (1) mounted with the primary mirror:
1) placing the mirror surface of the main mirror of the supporting component to be installed downwards;
2) placing the back positioning shaft sleeve (2) in a positioning hole of the back cover plate (1) through a screw hole in the back positioning shaft sleeve (2);
3) the back cover plate (1) is arranged on the back of the main mirror through a back positioning shaft sleeve (2), and the relative position of the main mirror and the back cover plate (1) is determined through a main mirror center positioning shaft sleeve (6);
4) the back positioning shaft sleeve (2) is connected through a back positioning shaft sleeve connecting cross rod (3) with a threaded hole, so that the back positioning shaft sleeve (2) is positioned on the main mirror body.
2. Positioning of the perimeter support assembly:
1) 6 grooves corresponding to the wedge-shaped surfaces are uniformly formed in the bottom of the back cover plate (1), and the peripheral positioning Z-shaped groove is placed in the grooves;
2) connecting the peripheral positioning Z-shaped groove with the peripheral positioning V-shaped clamping arm;
3) and placing the peripheral supporting cushion block in the peripheral positioning Z-shaped groove to realize the positioning of the peripheral supporting assembly.
In specific operation, the installation sequence of the back support assembly and the peripheral support assembly cannot be reversed, because once the position of the back cover plate is determined, the positions of the peripheral support assembly and the back support assembly are also determined, and if the peripheral positioning assembly is installed firstly, the back positioning shaft sleeve cannot be installed.
The method for positioning the primary mirror support assembly of the large-aperture telescope, provided by the embodiment of the application, not only can be suitable for a large-aperture telescope system adopting peripheral and back mixed support, but also is suitable for a large-aperture telescope system only adopting back support. This application is when realizing the supporting component location, make full use of primary mirror and back supporting component and peripheral supporting component's characteristic, thereby made things convenient for greatly to fix a position back supporting component and peripheral positioning component, and the skew can not take place for the positioning process, a latch closure ring, thereby effectively guarantee supporting component's high accuracy location, simultaneously because this application uses back location axle sleeve can make and has the certain distance between back apron (1) and the primary mirror body, and will treat the primary mirror surface of installation supporting component and arrange in on clean mild soft pressure-proof soft pad down, can effectively avoid the primary mirror lens body to be crushed, guarantee the precision of primary mirror supporting component location.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express the preferred embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A supporting component of a primary mirror of a large-aperture telescope is characterized by comprising a back supporting component and a peripheral supporting component, wherein a primary mirror central positioning shaft sleeve is arranged on the back supporting component, the primary mirror is arranged at the top of the back supporting component through the primary mirror central shaft sleeve, a plurality of supporting holes are uniformly formed in the back of a mirror body of the primary mirror, the peripheral supporting component is arranged at the bottom of the back supporting component,
the back support assembly comprises a back cover plate, a back positioning shaft sleeve and a back positioning shaft sleeve connecting cross rod; the back cover plate is uniformly provided with positioning holes corresponding to the supporting holes, the positioning holes are respectively internally provided with the back positioning shaft sleeves matched with the positioning holes, and the back positioning shaft sleeve is connected with one back positioning shaft sleeve adjacent to the back positioning shaft sleeve through the back positioning shaft sleeve connecting cross rod;
the peripheral supporting assembly comprises 6 peripheral positioning grooves, peripheral positioning clamping arms and peripheral supporting cushion blocks, grooves which are matched with the peripheral positioning grooves and used for bonding wedge-shaped surfaces are formed in the bottom of the back cover plate, the peripheral positioning grooves are connected with one adjacent peripheral positioning groove through the peripheral positioning clamping arms, and the peripheral supporting cushion blocks are arranged in the peripheral positioning grooves.
2. A primary mirror support assembly for a large aperture telescope according to claim 1, wherein said primary mirror centering boss is coaxial with a central axis of said back support assembly.
3. The primary mirror support assembly of a large-caliber telescope of claim 1, wherein the two ends of the back positioning shaft connecting cross bar are respectively provided with a threaded hole corresponding to the back positioning shaft sleeve.
4. The primary mirror support assembly of claim 1, wherein the number of the positioning holes is 6.
5. The primary mirror support assembly of claim 1, wherein the spacer positioning slot is a Z-shaped slot.
6. The primary mirror support assembly of claim 1, wherein the spacer block positioning clamp arms are V-shaped clamp arms.
7. A method for positioning a primary mirror supporting assembly of a large-aperture telescope is characterized by comprising the following steps:
s1, positioning the back support assembly so that the back cover plate is mounted with the primary mirror:
s2, positioning of the peripheral supporting assembly:
in step S1, the method specifically includes the following steps:
s11, placing the mirror surface of the main mirror of the support component to be installed downwards;
s12, placing the back positioning shaft sleeve in the positioning hole of the back cover plate through the screw hole on the back positioning shaft sleeve;
s13, placing the back cover plate on the back of the main mirror through the back positioning shaft sleeve, and determining the relative position of the main mirror and the back cover plate through the main mirror central positioning shaft sleeve;
s14, connecting a cross rod with a threaded hole through a back positioning shaft sleeve to connect the back positioning shaft sleeve, so as to realize the positioning of the back positioning shaft sleeve on the main mirror body;
in step S2, the method specifically includes the following steps:
s21, uniformly arranging 6 grooves corresponding to the wedge-shaped surfaces at the bottom of the back cover plate, and placing the peripheral positioning Z-shaped groove in the grooves;
s22, connecting the peripheral positioning Z-shaped groove with a peripheral positioning V-shaped clamping arm;
and S23, placing the peripheral supporting cushion blocks in the peripheral positioning Z-shaped groove to realize the positioning of the peripheral supporting assembly.
8. The method as claimed in claim 7, wherein the peripheral positioning groove is a Z-shaped groove.
9. The method according to claim 7, wherein the peripheral positioning clamp arms are V-shaped clamp arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011470064.XA CN112526742A (en) | 2020-12-15 | 2020-12-15 | Large-caliber telescope supporting component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011470064.XA CN112526742A (en) | 2020-12-15 | 2020-12-15 | Large-caliber telescope supporting component |
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| Publication Number | Publication Date |
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| CN112526742A true CN112526742A (en) | 2021-03-19 |
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| CN202011470064.XA Pending CN112526742A (en) | 2020-12-15 | 2020-12-15 | Large-caliber telescope supporting component |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608346A (en) * | 2021-08-11 | 2021-11-05 | 哈尔滨工业大学 | Modular sub-mirror splicing scheme and standardized interface for ultra-large space telescope |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436054A (en) * | 2011-12-29 | 2012-05-02 | 中国科学院长春光学精密机械与物理研究所 | Composite primary reflector supporting device for large telescope |
| US20130242424A1 (en) * | 2012-03-14 | 2013-09-19 | Atsushi Kato | Primary mirror support structure and telescope unit |
| CN105259635A (en) * | 2015-11-17 | 2016-01-20 | 中国科学院长春光学精密机械与物理研究所 | Whiffletree support structure applied to statically determined support of large-aperture reflector |
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2020
- 2020-12-15 CN CN202011470064.XA patent/CN112526742A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436054A (en) * | 2011-12-29 | 2012-05-02 | 中国科学院长春光学精密机械与物理研究所 | Composite primary reflector supporting device for large telescope |
| US20130242424A1 (en) * | 2012-03-14 | 2013-09-19 | Atsushi Kato | Primary mirror support structure and telescope unit |
| CN105259635A (en) * | 2015-11-17 | 2016-01-20 | 中国科学院长春光学精密机械与物理研究所 | Whiffletree support structure applied to statically determined support of large-aperture reflector |
Non-Patent Citations (3)
| Title |
|---|
| 张军: "一种空间遥感器反射镜柔性支撑结构", 《长春工业大学学报（自然科学版）》, vol. 35, no. 1, 28 February 2014 (2014-02-28), pages 30 - 35 * |
| 曾勇强,傅丹鹰,孙纪文,连华东: "空间遥感器大口径反射镜支撑结构型式综述", 《航天返回与遥感》, vol. 27, no. 2, 30 June 2006 (2006-06-30), pages 18 - 27 * |
| 王克军,董吉洪,宣明,张缓缓,迟春燕,赵伟国: "空间遥感器大口径反射镜的复合支撑结构", 《光学精密工程》, vol. 24, no. 7, 31 July 2016 (2016-07-31), pages 1719 - 1730 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113608346A (en) * | 2021-08-11 | 2021-11-05 | 哈尔滨工业大学 | Modular sub-mirror splicing scheme and standardized interface for ultra-large space telescope |
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Application publication date: 20210319 |
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