CN103490170B - There is the large radio telescope engineering of reflecting surface unit self-adapting bindiny mechanism - Google Patents
There is the large radio telescope engineering of reflecting surface unit self-adapting bindiny mechanism Download PDFInfo
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- CN103490170B CN103490170B CN201310442628.2A CN201310442628A CN103490170B CN 103490170 B CN103490170 B CN 103490170B CN 201310442628 A CN201310442628 A CN 201310442628A CN 103490170 B CN103490170 B CN 103490170B
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- reflecting surface
- surface unit
- node
- guide runner
- elongated hole
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Abstract
The invention discloses a kind of large radio telescope engineering with reflecting surface unit self-adapting connecting interface, comprise 0 node for connecting reflecting surface unit, 1 node and 2 nodes, reflecting surface unit can be adaptive to the motion of rope net node by the connection of 3 tie points in setting range scale.The present invention, by the adaptive connection mechanism of design 3 tie points, makes reflecting surface unit can be adapted to the shifting movement of rope net, to reduce the load that reflecting surface unit bears, is conducive to ensureing telescopical precision, and improves telescope useful life.
Description
Technical field
The present invention relates to a kind of large radio telescope engineering with reflecting surface unit self-adapting bindiny mechanism.
Background technology
Large radio telescope engineering adopts flexible cable net as supporting structure of the reflector, and it is online that Reflector Panel is laid immediately on sphere main rope, and each main rope node is connected with ground actuator by downhaul.Whole rope net adopts geodesic line Meshing Method, and the main rope be interrupted by about more than 6800 roots altogether forms.
Observe the sky district angle of celestial body as required, utilize actuator to control downhaul, form at sphere rope the parabola that diameter is 300 meters on the net, to converge electromagnetic wave, celestial body is observed.Rope net to paraboloidal change procedure repeatedly, is referred to as rope net displacement work by sphere.
The reflecting surface unit of large radio telescope engineering comprises leg-of-mutton aluminium alloy rack and panel construction, has certain flexibility.During the displacement work of rope net, the tie point of existing reflecting surface unit, owing to effectively can not adapt to shifting movement, easily causes linkage unit serious wear, the problem such as load that reflecting surface unit bears is excessive.
Summary of the invention
For prior art Problems existing, the object of the present invention is to provide a kind of large radio telescope engineering with reflecting surface unit self-adapting bindiny mechanism, it ensures the position shape precision of reflecting surface unit, and in the rope net displacement course of work, ensures that reflecting surface unit does not bear excessive load.
For achieving the above object, the present invention has the large radio telescope engineering of reflecting surface unit self-adapting connecting interface, comprise 0 node for connecting reflecting surface unit, 1 node and 2 nodes, 0 node, 1 node and 2 nodes include the reserved bar be fixedly connected with node plate, the connecting rod be connected with reflecting surface unit; Wherein, be connected by drum type pin between the reserved bar one of 0 node and connecting rod one, to realize three rotational freedoms between reflecting surface unit and node plate, and retrain three translational degree of freedom simultaneously; The reserved bar two of 1 node is provided with elongated hole one, the guide runner one that can only slide along its length is provided with in elongated hole one, be connected by drum type pin between guide runner one and the connecting rod two of 1 node, to realize three rotational freedoms between reflecting surface unit and node plate, and realize an one-movement-freedom-degree simultaneously; The reserved bar three of 2 nodes is provided with elongated hole two, the guide runner two slided with thickness direction is along its length provided with in elongated hole two, be connected by drum type pin between guide runner two and the connecting rod three of 2 nodes, to realize three rotational freedoms between reflecting surface unit and node plate, and realize two one-movement-freedom-degrees simultaneously; Reflecting surface unit can be adaptive to the motion of rope net node by the connection of 3 tie points in setting range scale.
Further, described reserved bar is L-type structure, and its vertical bar is fixedly connected with described node plate, and transverse bar is connected with described connecting rod.
Further, between described vertical bar and node plate, antirotation keys is set, fastening by double nut bottom it.
Further, described connecting rod is provided with U-shaped connector, described transverse bar is inserted in U-shaped connector.
Further, the gap of rotating for described drum type pin is provided with between described U-shaped connector and transverse bar.
Further, described drum type pin is the composite construction that bearing pin is combined with oscillating bearing inner ring, and oscillating bearing inner ring forms the syndeton of mutually rotating between described drum type pin and other parts.
Further, before and after the upper surface of described guide runner one, edge is all upwards extended with upper limit plane, before and after the lower surface of described guide runner one, edge is extended with lower limit plane all downwards, described guide runner one is connected in described elongated hole one by upper limit plane, lower limit plane, can only slide to limit described guide runner one along the length direction of described elongated hole one.
Further, the thickness of described guide runner two is greater than the thickness of described elongated hole two, and described guide runner two through-thickness in described elongated hole two carries out front and back to slide, carry out left and right slide along described elongated hole two length direction.
Further, reinforcement is provided with between described vertical bar and transverse bar.
The present invention, by the adaptive connection mechanism of design 3 tie points, makes reflecting surface unit can be adapted to the shifting movement of rope net, to reduce the load that reflecting surface unit bears, is conducive to ensureing telescopical precision, and improves telescope useful life.
Accompanying drawing explanation
Fig. 1 is 0 node connecting structure schematic diagram;
Fig. 2 is 1 node connecting structure schematic diagram;
Fig. 3 is 2 node connecting structure schematic diagrames;
Fig. 4 is drum type latch structure schematic diagram.
Embodiment
Below, with reference to accompanying drawing, the present invention is more fully illustrated, shown in the drawings of exemplary embodiment of the present invention.But the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment being confined to describe here.But, these embodiments are provided, thus make the present invention comprehensively with complete, and scope of the present invention is fully conveyed to those of ordinary skill in the art.
For ease of illustrating, here can use such as " on ", the space relative terms such as D score " left side " " right side ", for illustration of the element of shown in figure or the feature relation relative to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as the element being positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and space used here illustrates relatively can correspondingly explain.
As shown in Figures 1 to 4, the present invention has the large radio telescope engineering of reflecting surface unit self-adapting connecting interface, 0 node 1,1 node 2 and 2 node 3,0 node 1,1 node 2 comprised for connecting reflecting surface unit includes the reserved bar be fixedly connected with node plate 4, the connecting rod be connected with reflecting surface unit with 2 nodes 3.
Reserved bar is L-type structure, and its vertical bar 15 is fixedly connected with node plate 4, and transverse bar 16 is connected with connecting rod.Between vertical bar 15 and node plate 4, antirotation keys 17 is set, fastening by double nut bottom it.Connecting rod is provided with U-shaped connector 18, transverse bar 16 is inserted in U-shaped connector 18, and is provided with the gap 19 of rotating for drum type pin 7 between U-shaped connector 18 and transverse bar 16, to adapt to the rotational freedom of drum type pin 7.The reinforcement 24 of reinforcement unitarity structural strength is provided with between vertical bar 15 and transverse bar 16.
Drum type pin 7 is the composite construction that bearing pin 20 is combined with oscillating bearing inner ring 21, and oscillating bearing inner ring 21 forms the syndeton of mutually rotating between drum type pin 7 and other parts.
0 node 1 comprises reserved bar 1, connecting rod 1 and drum type pin 7, reserves and is connected by drum type pin 7 between bar 1 and connecting rod 1, to realize three rotational freedoms between reflecting surface unit and node plate 4, and retrains three translational degree of freedom simultaneously.
The reserved bar 28 of 1 node 2 is provided with elongated hole 1, in elongated hole 1, is provided with the guide runner 1 that can only slide along its length, be connected by drum type pin 7 between guide runner 1 with the connecting rod 2 11 of 1 node 2.By adopting drum type pin 7 in 1 node 2, three rotational freedoms between reflecting surface unit and node plate 4 can be realized, by the slippage of guide runner 1 in elongated hole 1, an one-movement-freedom-degree between reflecting surface unit and node plate 4 can be realized.
Wherein, before and after the upper surface of guide runner 1, edge is all upwards extended with upper limit plane 22, before and after the lower surface of guide runner 1, edge is extended with lower limit plane 23 all downwards, guide runner 1 is connected in elongated hole 1 by upper limit plane 22, lower limit plane 23, can only slide with restricted guidance slide block 1 along the length direction of elongated hole 1.
The reserved bar 3 12 of 2 nodes 3 is provided with elongated hole 2 13, the guide runner 2 14 slided with thickness direction is along its length provided with in elongated hole 2 13, be connected by drum type pin 7 between guide runner 2 14 with the connecting rod 3 25 of 2 nodes 3, by adopting drum type pin 7 in 2 nodes 3, three rotational freedoms between reflecting surface unit and node plate 4 can be realized, by the two-way slippage of guide runner 2 14 in elongated hole 2 13, two one-movement-freedom-degrees between reflecting surface unit and node plate 4 can be realized.
In the present embodiment, the thickness arranging guide runner 2 14 is greater than the thickness of elongated hole 2 13, such guide runner 2 14 can move in elongated hole 2 13 along its thickness direction, namely guide runner 2 14 through-thickness in elongated hole 2 13 carries out front and back and slides, and guide runner 2 14 can carry out left and right along elongated hole 2 13 length direction and slides simultaneously.
In the present invention, 0 node 1,1 node 2 and 2 node 3 is all freely rotate, namely without any rotational restraint.In one-movement-freedom-degree, 0 node 1 retrains whole three one-movement-freedom-degrees, does not namely have one-movement-freedom-degree; 1 node 2 retrains two one-movement-freedom-degrees, has an one-movement-freedom-degree; 2 nodes 3 retrain an one-movement-freedom-degree, have two one-movement-freedom-degrees.Can ensure that reflecting surface unit is a statically determinate structure like this, any motion of rope net node can be adaptive within the scope of some scale, and not bear due to the producible additional load of rope joint movements.
The present invention has following features:
1) meet degree of freedom requirement, slide smooth and easy, the overall position shape precision of reflecting surface unit can be ensured;
2) be convenient to reflecting surface cellular installation, there is good durability, meet telescopical useful life;
3) independently install with reflecting surface unit, be convenient to change, be easy to safeguard.
Claims (8)
1. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface, it is characterized in that, comprise 0 node for connecting reflecting surface unit, 1 node and 2 nodes, 0 node, 1 node and 2 nodes include the reserved bar be fixedly connected with node plate, the connecting rod be connected with reflecting surface unit; Wherein, be connected by drum type pin between the reserved bar one of 0 node and connecting rod one, to realize three rotational freedoms between reflecting surface unit and node plate, and retrain three translational degree of freedom simultaneously; The reserved bar two of 1 node is provided with elongated hole one, the guide runner one that can only slide along its length is provided with in elongated hole one, be connected by drum type pin between guide runner one and the connecting rod two of 1 node, to realize three rotational freedoms between reflecting surface unit and node plate, and realize an one-movement-freedom-degree simultaneously; The reserved bar three of 2 nodes is provided with elongated hole two, the guide runner two slided with thickness direction is along its length provided with in elongated hole two, be connected by drum type pin between guide runner two and the connecting rod three of 2 nodes, to realize three rotational freedoms between reflecting surface unit and node plate, and realize two one-movement-freedom-degrees simultaneously; Reflecting surface unit can be adaptive to the motion of rope net node by the connection of 3 tie points in setting range scale;
Before and after the upper surface of described guide runner one, edge is all upwards extended with upper limit plane, before and after the lower surface of described guide runner one, edge is extended with lower limit plane all downwards, described guide runner one is connected in described elongated hole one by upper limit plane, lower limit plane, can only slide to limit described guide runner one along the length direction of described elongated hole one.
2. have the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 1, it is characterized in that, described reserved bar is L-type structure, and its vertical bar is fixedly connected with described node plate, and transverse bar is connected with described connecting rod.
3. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 2, it is characterized in that, between described vertical bar and node plate, antirotation keys is set, fastening by double nut bottom it.
4. have the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 2, it is characterized in that, described connecting rod is provided with U-shaped connector, described transverse bar is inserted in U-shaped connector.
5. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 4, it is characterized in that, between described U-shaped connector and transverse bar, be provided with the gap of rotating for described drum type pin.
6. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 1, it is characterized in that, described drum type pin is the composite construction that bearing pin is combined with oscillating bearing inner ring, and oscillating bearing inner ring forms the syndeton of mutually rotating between described drum type pin and other parts.
7. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 1, it is characterized in that, the thickness of described guide runner two is greater than the thickness of described elongated hole two, and described guide runner two through-thickness in described elongated hole two carries out front and back to slide, carry out left and right slide along described elongated hole two length direction.
8. there is the large radio telescope engineering of reflecting surface unit self-adapting connecting interface as claimed in claim 2, it is characterized in that, between described vertical bar and transverse bar, be provided with reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442628.2A CN103490170B (en) | 2013-09-26 | 2013-09-26 | There is the large radio telescope engineering of reflecting surface unit self-adapting bindiny mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442628.2A CN103490170B (en) | 2013-09-26 | 2013-09-26 | There is the large radio telescope engineering of reflecting surface unit self-adapting bindiny mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103490170A CN103490170A (en) | 2014-01-01 |
| CN103490170B true CN103490170B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310442628.2A Expired - Fee Related CN103490170B (en) | 2013-09-26 | 2013-09-26 | There is the large radio telescope engineering of reflecting surface unit self-adapting bindiny mechanism |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004279899A (en) * | 2003-03-18 | 2004-10-07 | Mitsubishi Electric Corp | Reflection mirror support adjusting mechanism |
| CN1828077A (en) * | 2006-03-27 | 2006-09-06 | 曹江浪 | Drum-shaped pin type spherical hinge universal coupling |
| CN202165530U (en) * | 2011-07-20 | 2012-03-14 | 董福绵 | Speed reducer for lever box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109349A (en) * | 1990-01-23 | 1992-04-28 | Kaman Aerospace Corporation | Actively controlled segmented mirror |
| CN2891323Y (en) * | 2005-08-03 | 2007-04-18 | 同济大学 | Light-type tensioned reflection surface support structure |
| WO2009015424A1 (en) * | 2007-07-30 | 2009-02-05 | Stephen Kaneff | Improved support frame for the dish of a large dish antenna |
-
2013
- 2013-09-26 CN CN201310442628.2A patent/CN103490170B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004279899A (en) * | 2003-03-18 | 2004-10-07 | Mitsubishi Electric Corp | Reflection mirror support adjusting mechanism |
| CN1828077A (en) * | 2006-03-27 | 2006-09-06 | 曹江浪 | Drum-shaped pin type spherical hinge universal coupling |
| CN202165530U (en) * | 2011-07-20 | 2012-03-14 | 董福绵 | Speed reducer for lever box |
Non-Patent Citations (1)
| Title |
|---|
| FAST主动反射面支承结构理论与试验研究;钱宏亮;《中国博士学位论文全文数据库工程科技II辑》;20090131;第四章第112-114页，图4.23-4.25 * |
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| CN103490170A (en) | 2014-01-01 |
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