CN101320844A - Light reflection surface panel support mechanism of radio astronomical telescope - Google Patents
Light reflection surface panel support mechanism of radio astronomical telescope Download PDFInfo
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- CN101320844A CN101320844A CNA2008100224030A CN200810022403A CN101320844A CN 101320844 A CN101320844 A CN 101320844A CN A2008100224030 A CNA2008100224030 A CN A2008100224030A CN 200810022403 A CN200810022403 A CN 200810022403A CN 101320844 A CN101320844 A CN 101320844A
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Abstract
A light reflecting surface panel support mechanism of a radiotelescopio is provided with a grid antenna frame carrier, which is characterized by that: three groups of steel wire ropes with identical spacing are arranged with an included angle of 60 degrees to each other, two ends of each steel wire rope being fixed to a veil fixed beam to form a net face of triangular net hole having a triangular panel thereon to form a reflecting face; each intersection of the steel wire rope is provided with a mesh point mechanism; each steel wire rope of all mesh points is held in adjacent mode to each other and penetration, allowing relative movement; a draw steel wire rope is connected to each mesh point, with an lower end fixed to a fixed beam of the draw steel wire rope; a panel support arm is fixed to each mesh point, which is arrange at lower side of the veil; three panel support arms on each mesh points keep identical pivot angle direction; one end of the panel support arm is connected to the mesh point through a hinge post of a rotary degree of freedom, while another end thereof is connected to the bottom of the triangular panel through a spherical hinge of three rotary degrees of freedom. Installation position points of three spherical hinges form a regular triangle.
Description
Technical field
The present invention relates to a kind of supporting mechanism device, be specifically related to a kind of light reflection surface panel support mechanism of radio astronomical telescope, be used for the support of radio telescope Reflector Panel, be particularly useful for the realization of the lightness reflecting surface that large-scale radio telescope reflecting surface face shape needs regulate at any time.
Background technology
The support of radio telescope reflecting surface is generally antenna back frame structure and reflection surface panel support mechanism two levels of support structure, that is, reflecting surface is combined into by the polylith panel, and every panel is supported on the antenna back frame structure by corresponding supporting mechanism.The radio telescope panel mostly is similar isosceles trapezoid (two bases are isocentric circular arc) shape, traditionally more adopt on four angle points, to install support and governor motion, and generally be that the shared cover governor motion of four adjacent corner points of adjacent four panels is connected on the antenna back frame; Antenna back frame is generally the butterfly paraboloid structure that truss structure constitutes, and panel then is to be supported on this parabola truss.
Small-sized radio telescope adopts the direct panel beating moulding of aluminum deck to realize the lightness reflecting surface more; And large-scale radio telescope in the situation that the observation wave band allows, adopts netted panel that the steel wire braiding forms with weight reduction as far as possible, and adopts particular design principle and Optimization Design to alleviate the weight of antenna back frame structure as far as possible.Adopt guarantor's type design principle to realize very light antenna structure relatively as 100 meters bore radio telescopes of Germany; 45 meters bore radio telescopes of India adopt steel wire rope to realize the lightness antenna back frame structure of prestressed structure in conjunction with truss-like support beam structure radially.Reflecting surface face shape adjusting aspect, the traditionally employing implemented initiatively displacement regulatory function more on panel support mechanism, carry out the adjusting of panel displacement and position, thereby realizes the adjusting of the total honorable shape of reflecting surface.
The shortcoming of the implementation method that above-mentioned radio telescope reflecting surface lightness method and reflecting surface face shape are regulated at any time is: the design of panel active adjustment supporting mechanism is complicated, and cost is higher, and reflecting surface face shape adjustable extent is very little; The antenna back frame design is complicated, involves great expense, and also has the space of lightness design.
Summary of the invention
In order to overcome the shortcoming of above-mentioned radio telescope reflecting surface lightness method and face shape control method, and cost realizes that than the lowland face shape needs the radio telescope reflecting surface of the lightness of adjusting at any time comparatively simply, open into reflector shape based on steel wire (or steel wire rope) net and constitute light-duty antenna back frame, and, the invention provides a kind of light-duty have the large-scale radio telescope reflecting surface and the panel support scheme thereof of regulatory function at any time based on the bikini servo-actuated panel support mechanism that is mounted thereon.This reflecting surface can be realized the adjusting at any time of reflecting surface face shape by the mode of carrying out towing on its site (each site have three steel wire ropes by); The leg-of-mutton Reflector Panel that adopts is installed on the wire rope net site by bikini servo-actuated panel support mechanism; when wire rope net changes face shape because of towing; the triangle Reflector Panel can not bear extra load because of the variation of supporting the position, site, and this is for the protection panel and keep panel face shape most important.
The technical solution adopted for the present invention to solve the technical problems is: a kind of light reflection surface panel support mechanism of radio astronomical telescope, be provided with light-duty net-shape antenna back of the body frame, and it is characterized in that,
The structure of this light-duty net-shape antenna back of the body frame is: the steel wire rope of three groups of parallel spacing unanimities, be mutually 60 degree angle modes, and the two ends of every steel wire rope are fixed on the veil built-in beam, form the steel wire rope wire side of triangle mesh;
Each triangle mesh is equipped with a triangular panels accordingly, and each triangular panels is spliced to form the radio telescope reflecting surface;
Be provided with site mechanism on each crosspoint of described steel wire rope, the structure of described site mechanism is as follows:
Keep between each steel wire rope of all sites pressing close to mutually by, allow to relatively move;
Respectively be connected with a towing steel wire rope on each site, the lower end of this towing steel wire rope is fixed on the towing steel wire rope built-in beam of veil downside;
Respectively be fixed with a panel support arm on each site, this panel support arm is arranged on the veil downside, and the pivot angle direction of three panel support arms on each site is consistent; One end of this panel support arm is hinged by the post with a rotary freedom and is connected on the site, and the other end is connected in the triangular panels bottom by the ball pivot with three rotary freedoms, and the installation site point of these three ball pivots on panel constitutes equilateral triangle.
The present invention has following prioritization scheme:
1, the undersized of described triangular panels is in the size of mesh.
2, the veil steel wire rope at the set-up mode that site mechanism locates to press close to mutually by allowing again to relatively move is: site mechanism place is provided with a small rigidity cylinder, this cylinder is provided with three through holes that are mutually 60 degree angles, three veil steel wire ropes are the through hole by separately respectively, and be provided with a screwed hole on the cylinder top, be used to adopt screw that the veil steel wire rope is locked.
For structure and the operation principle that further specifies such scheme of the present invention, below respectively technical scheme structure of the present invention is decomposed so that explain.
It at first is a kind of scheme of opening into reflecting surface based on wire rope net, as schematically shown in Figure 1, the good veil steel wire rope of one circle rigidity built-in beam 1 is set, steel wire rope 4 with three groups of parallel spacing unanimities, be mutually 60 degree angle modes, the two ends of every steel wire rope 4 are fixed on the veil steel wire rope built-in beam 1, have so just formed the steel wire rope wire side with network of triangle well format, promptly constitute light-duty net-shape antenna back of the body frame.Its primary face shape can be arbitrary face shape, as sphere, parabola or plane etc.Steel wire rope veil site place, by site mechanism keep three steel wire ropes just press close to mutually by, but be not connected, allow to relatively move permission locking steel wire rope.This is convenient to install initial adjustment, simplifies site mechanism, simplifies implementing process and reduces cost.
As shown in Figure 2, on each site of steel wire rope veil, down respectively connect a towing steel wire rope 17, its lower end is fixed on the towing steel wire rope built-in beam 15.Regulate the height that the towing length of steel wire rope can be adjusted the veil site, thus the adjusting range mesh-shaped, and, improve the rigidity and the stability of veil structure because the towing power of steel wire rope makes the veil tensioning.
Referring to Fig. 1 and Fig. 3, each triangle mesh of steel wire rope veil will be installed a triangular panels 5 accordingly, thereby be spliced to form the radio telescope reflecting surface.The size of panel is slightly smaller than the size of mesh, is convenient to the first of panel and debugs whole and reflecting surface veil change shape.
The present invention then proposes 3 panel support mechanisms of a kind of trailing type.Referring to Fig. 3 and Fig. 4, respectively stretch out a panel support arm 6 on three sites for each triangle mesh.For obtaining better manufacturability and stability, panel support arm 6 is arranged on the veil downside.For a triangle mesh, the pivot angle direction of three panel support arms is consistent.One end of panel support arm is to be connected on the site by the post hinge 21 with a rotary freedom, the other end is to be connected in the triangular panels bottom by the ball pivot 20 with three rotary freedoms, and the installation site point of three ball pivots 20 on panel constitutes equilateral triangle.The length of panel support arm, the installation site of ball pivot can be determined by specific design.This panel support mechanism can be realized normal direction and the lateral support and the location of counter plate simultaneously, and wherein, the support normal function is provided by panel support arm bending resistance, and the lateral support function is realized by its tension pressure energy power.The distortion and the stress that cause because of gravity and thermal effect between steel wire rope wire side and the panel, and the distortion and the stress that the steel wire rope veil are caused when being out of shape because of towing steel wire rope towing, all can eliminate by ball pivot and freely rotating of post hinge, thereby can not produce load by counter plate, can not destroy the face shape of panel or destruction panel.Based on above meaning, claim that this panel support mechanism is 3 panel support mechanisms of trailing type.Therefore 3 panel support mechanisms of trailing type are connected in supported panel because of three points are only arranged, applicable to the panel of any curved surface form.The distortion of panel itself and stress also will be discharged by freely rotating of ball pivot and post hinge, thereby not have Stress Transfer to the veil site.
Referring to Fig. 1 and Fig. 3, generally speaking, each place, site has six panels to center on, and promptly each site mechanism is with integrated installation six roots of sensation panel support arm; Peripheral place, site, the quantity of panel support arm is because of relevant few minimizing of panel quantity.Like this, site mechanism combines the towing steel wire rope of veil steel wire rope, panel support arm and below.
The invention has the beneficial effects as follows: a kind of light-duty have the large-scale radio telescope reflecting surface and the panel support scheme thereof of regulatory function at any time are provided, can have realized the adjusting at any time of reflecting surface face shape by the mode of towing; The steel wire rope that constitutes the reflecting surface veil press close to mutually at the place, site by, and be not connected, allow the mode of slide relative and locking, help installing initial adjustment, simplify implementing process and reduce cost.3 panel support mechanisms of trailing type that propose, can discharge when the steel wire rope wire side changes reflecting surface face shape because of towing, panel can not bear extra load because of the variation of supporting the position, site, also can discharge between steel wire rope wire side and the panel distortion and the stress that cause because of gravity and thermal effect, thereby can not produce load by counter plate, can effectively protect panel and keep panel face shape; The distortion of panel itself and stress also will be discharged by freely rotating of ball pivot and post hinge, thereby not have Stress Transfer to the veil site.In addition, this supporting mechanism is applicable to the panel of any curved surface form.3 panel support mechanisms of this trailing type have that principle is clear, symmetrical configuration is compact and advantage such as technology is simple.
Description of drawings
Fig. 1 light antenna back of the body frame veil wire rope net schematic diagram;
Fig. 2 light antenna back of the body frame end view;
Fig. 3 triangular panels and trailing type supported at three point mechanism vertical view thereof;
Fig. 4 triangular panels and trailing type supported at three point mechanism side view thereof;
Fig. 5 lightness reflecting surface embodiment veil vertical view;
Amplify and cutaway view Fig. 6 lightness reflecting surface embodiment veil site;
Fig. 7 lightness reflecting surface embodiment panel support end view.
1. veil steel wire rope built-in beams among the figure are 2. regulated bolt, 3. nut, 4. veil steel wire rope, 5. panel, 6. panel support arm, 7. site mechanism, 8. nut, 9. lock-screw, 10. oscillating bearing, 11. screws, 12. nuts, 13. the support arm axle, 14. regulate bolt, 15. towing steel wire rope built-in beams, 16. nut, 17. towing steel wire ropes, 18. joint bolts, 19. connecting flange, 20. ball pivots, 21. posts hinge.
Embodiment
Embodiment 1, at Fig. 5, among Fig. 6 and Fig. 7, three groups of parallel veil steel wire ropes 4, every is all passed the through hole that is mutually 60 degree angles corresponding in the site mechanism 7, and two ends are fixed on the veil steel wire rope built-in beam 1 by regulating bolt 2 and nut 3, form light-duty reflection veil.Veil steel wire rope 4 is locked at site mechanism 7 upper ends by lock-screw 9.The upper end of supporting arm axle 13 is tightened on the bottom surface flange downside of site mechanism 7, and panel support arm 6 is inserted in from the bottom up and supports arm axle 13, and this has just constituted so-called post hinge.Connecting flange 19 is fixed on the lower end of supporting arm axle 13 by nut 12, forms the following side shield of panel support arm 6.At the upper surface of panel support arm 6 ends, by screw 11 oscillating bearing 10 (oscillating bearing 10 has promptly constituted so-called post hinge) is installed, 5 of panels pass through nut 8 and link to each other with the upper end of oscillating bearing 10.Down, be rotary with joint bolt 18 in the center of connecting flange 19, its lower end is connected mutually with the upper end of towing steel wire rope 17.The lower end of towing steel wire rope 17 links to each other with towing steel wire rope built-in beam 15 with nut 16 by regulating bolt 14.Each triangle mesh of steel wire rope veil will be installed a triangular panels 5 accordingly, thereby be spliced to form the radio telescope reflecting surface.The size of described triangular panels 5 gets final product less than the about 5mm of the size of mesh.
Claims (4)
1, a kind of light reflection surface panel support mechanism of radio astronomical telescope is provided with light-duty net-shape antenna back of the body frame, it is characterized in that,
The structure of this light-duty net-shape antenna back of the body frame is: the steel wire rope of three groups of parallel spacing unanimities, be mutually 60 degree angle modes, and the two ends of every steel wire rope are fixed on the veil built-in beam, form the steel wire rope wire side of triangle mesh;
Each triangle mesh is equipped with a triangular panels accordingly, and each triangular panels is spliced to form the radio telescope reflecting surface;
Be provided with site mechanism on each crosspoint of described steel wire rope, the structure of described site mechanism is as follows:
Keep between each steel wire rope of all sites pressing close to mutually by, allow to relatively move;
Respectively be connected with a towing steel wire rope on each site, the lower end of this towing steel wire rope is fixed on the towing steel wire rope built-in beam of veil downside;
Respectively be fixed with a panel support arm on each site, this panel support arm is arranged on the veil downside, and the pivot angle direction of three panel support arms on each site is consistent; One end of this panel support arm is hinged by the post with a rotary freedom and is connected on the site, and the other end is connected in the triangular panels bottom by the ball pivot with three rotary freedoms, and the installation site point of these three ball pivots on panel constitutes equilateral triangle.
2, light reflection surface panel support mechanism of radio astronomical telescope according to claim 1 is characterized in that, the size of described triangular panels is less than the about 5mm of the size of mesh.
3, light reflection surface panel support mechanism of radio astronomical telescope according to claim 1, it is characterized in that, the set-up mode that described veil steel wire rope is pressed close to mutually by allowing again to relatively move at site mechanism place is: site mechanism place is provided with a small rigidity cylinder, this cylinder is provided with three through holes that are mutually 60 degree angles, three veil steel wire ropes are the through hole by separately respectively, and be provided with a screwed hole on the cylinder top, be used to adopt screw that the veil steel wire rope is locked.
4, according to claim 1 or 2 or 3 described light reflection surface panel support mechanism of radio astronomical telescope, it is characterized in that, concrete structure is as follows: three groups of parallel veil steel wire ropes (4), every is all passed site mechanism (7) and goes up the corresponding through hole that is mutually 60 degree angles, two ends are fixed on the veil steel wire rope built-in beam (1) by regulating bolt (2) and nut (3), form light-duty reflection veil; Veil steel wire rope (4) is locked at site mechanism (7) upper end by lock-screw (9); The upper end of supporting arm axle (13) is tightened on the bottom surface flange downside of site mechanism (7), and panel support arm (6) is inserted in from the bottom up and supports arm axle (13); Connecting flange (19) is fixed on the lower end of supporting arm axle (13) by nut (12), forms the following side shield of panel support arm (6); At the terminal upper surface of panel support arm (6), by screw (11) oscillating bearing (10) is installed, panel (5) then links to each other with the upper end of oscillating bearing (10) by nut (8); Be rotary with joint bolt (18) in the center of connecting flange (19), its lower end is connected mutually with the upper end of towing steel wire rope (17); The lower end of towing steel wire rope (17) links to each other with towing steel wire rope built-in beam (15) with nut (16) by regulating bolt (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100224030A CN101320844B (en) | 2008-07-11 | 2008-07-11 | Light reflection surface panel support mechanism of radio astronomical telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100224030A CN101320844B (en) | 2008-07-11 | 2008-07-11 | Light reflection surface panel support mechanism of radio astronomical telescope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101320844A true CN101320844A (en) | 2008-12-10 |
| CN101320844B CN101320844B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100224030A Expired - Fee Related CN101320844B (en) | 2008-07-11 | 2008-07-11 | Light reflection surface panel support mechanism of radio astronomical telescope |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982400A (en) * | 2010-09-27 | 2011-03-02 | 中国科学院国家天文台 | Suspension type panel space attitude adjusting platform |
| CN102324625A (en) * | 2011-06-08 | 2012-01-18 | 中国科学院国家天文台南京天文光学技术研究所 | Active reflector structure of radio telescope |
| CN102882008A (en) * | 2012-09-29 | 2013-01-16 | 西安空间无线电技术研究所 | Low-expansion mesh reflector using composite material connectors |
| CN103490140A (en) * | 2013-09-22 | 2014-01-01 | 中国科学院国家天文台 | Large radio telescope with reflective surface unit self-adaptation connecting interface |
| CN104701632A (en) * | 2014-11-21 | 2015-06-10 | 贵州贵航飞机设计研究所 | Assembly adjusting method and device of panel sub-unit of radio telescope reflective face unit |
| CN113540746A (en) * | 2021-06-08 | 2021-10-22 | 杭州电子科技大学 | Low-stress shape-preserving device for large and medium radio telescope panel and working method thereof |
-
2008
- 2008-07-11 CN CN2008100224030A patent/CN101320844B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982400A (en) * | 2010-09-27 | 2011-03-02 | 中国科学院国家天文台 | Suspension type panel space attitude adjusting platform |
| CN101982400B (en) * | 2010-09-27 | 2012-09-05 | 中国科学院国家天文台 | Suspension type panel space attitude adjusting platform |
| CN102324625A (en) * | 2011-06-08 | 2012-01-18 | 中国科学院国家天文台南京天文光学技术研究所 | Active reflector structure of radio telescope |
| CN102324625B (en) * | 2011-06-08 | 2013-08-07 | 中国科学院国家天文台南京天文光学技术研究所 | Active reflector structure of radio telescope |
| CN102882008A (en) * | 2012-09-29 | 2013-01-16 | 西安空间无线电技术研究所 | Low-expansion mesh reflector using composite material connectors |
| CN102882008B (en) * | 2012-09-29 | 2015-02-11 | 西安空间无线电技术研究所 | Low-expansion mesh reflector using composite material connectors |
| CN103490140A (en) * | 2013-09-22 | 2014-01-01 | 中国科学院国家天文台 | Large radio telescope with reflective surface unit self-adaptation connecting interface |
| CN103490140B (en) * | 2013-09-22 | 2015-07-15 | 中国科学院国家天文台 | Large radio telescope with reflective surface unit self-adaptation connecting interface |
| CN104701632A (en) * | 2014-11-21 | 2015-06-10 | 贵州贵航飞机设计研究所 | Assembly adjusting method and device of panel sub-unit of radio telescope reflective face unit |
| CN104701632B (en) * | 2014-11-21 | 2017-08-11 | 贵州贵航飞机设计研究所 | The assembled method of adjustment and device of radio telescope unit panel of reflecting surface subelement |
| CN113540746A (en) * | 2021-06-08 | 2021-10-22 | 杭州电子科技大学 | Low-stress shape-preserving device for large and medium radio telescope panel and working method thereof |
| CN113540746B (en) * | 2021-06-08 | 2023-01-10 | 杭州电子科技大学 | Low-stress shape-preserving device for large and medium radio telescope panels and working method thereof |
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| CN101320844B (en) | 2013-02-13 |
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Granted publication date: 20130213 Termination date: 20130711 |