CN103490170A - Large radio telescope with reflector unit self-adaptation connecting mechanism - Google Patents
Large radio telescope with reflector unit self-adaptation connecting mechanism Download PDFInfo
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- CN103490170A CN103490170A CN201310442628.2A CN201310442628A CN103490170A CN 103490170 A CN103490170 A CN 103490170A CN 201310442628 A CN201310442628 A CN 201310442628A CN 103490170 A CN103490170 A CN 103490170A
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- node
- reflecting surface
- surface unit
- guide runner
- slotted hole
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Abstract
The invention discloses a large radio telescope with a reflector unit self-adaptation connecting port. The large radio telescope comprises a node 0, a node 1 and a node 2 which are used for being connected with a reflector unit, and the reflector unit can adapt to the motion at cable network nodes within a set scale range through the connection of the three connecting nodes. Through the self-adaptation connecting mechanism with the three connecting nodes, the reflector unit can adapt to the deflections of a cable network, the load borne by the reflector unit is reduced, the accuracy of the large radio telescope is guaranteed, and the service life of the large radio telescope is prolonged.
Description
Technical field
The present invention relates to a kind of large radio telescope with reflecting surface unit self-adapting bindiny mechanism.
Background technology
Large radio telescope adopts the flexible cable net as supporting structure of the reflector, and it is online that Reflector Panel is laid immediately on the sphere main rope, and each main rope node is connected with the ground actuator by downhaul.Whole rope net adopts the geodesic line Meshing Method, the main rope that approximately more than 6800 roots are interrupted, consists of altogether.
Observe as required celestial body Tian district angle, utilize actuator to control downhaul, at the sphere rope, form the parabola that diameter is 300 meters on the net, to converge electromagnetic wave, celestial body is observed.The 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 comprises leg-of-mutton aluminium alloy rack and panel construction, has certain flexibility.The problems such as rope net displacement when work, the tie point of existing reflecting surface unit be owing to can not effectively adapting to the displacement campaign, and the load that easily causes linkage unit serious wear, reflecting surface unit to bear is excessive.
Summary of the invention
The problem existed for prior art, the object of the present invention is to provide a kind of large radio telescope with reflecting surface unit self-adapting bindiny mechanism, it guarantees the position shape precision of reflecting surface unit, and, in the rope net displacement course of work, guarantees that the reflecting surface unit does not bear excessive load.
For achieving the above object, the present invention has the large radio telescope of reflecting surface unit self-adapting connecting interface, comprise 0 node, 1 node and 2 nodes for connecting the reflecting surface unit, 0 node, 1 node and 2 nodes include the reserved bar be fixedly connected with the node dish, the connecting rod be connected with the reflecting surface unit; Wherein, between the reserved bar one of 0 node and connecting rod one, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and retrain three translational degree of freedom simultaneously; Be provided with slotted hole one on the reserved bar two of 1 node, be provided with the guide runner one that can only slide along its length in slotted hole one, between the connecting rod two of guide runner one and 1 node, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and realize an one-movement-freedom-degree simultaneously; Be provided with slotted hole two on the reserved bar three of 2 nodes, be provided with along its length the guide runner two slided with thickness direction in slotted hole two, between the connecting rod three of guide runner two and 2 nodes, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and realize two one-movement-freedom-degrees simultaneously; The 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 the L-type structure, and its vertical bar is fixedly connected with described node dish, and transverse bar is connected with described connecting rod.
Further, between described vertical bar and node dish, antirotation keys is set, its bottom is fastening by double nut.
Further, be provided with U-shaped connector on described connecting rod, described transverse bar is inserted in U-shaped connector.
Further, be provided with the gap of rotating for described drum type pin between described U-shaped connector and transverse bar.
Further, described drum type pin is the composite construction that in bearing pin and oscillating bearing, loops closes, and in oscillating bearing, 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 has all extended upward upper limit plane, before and after the lower surface of described guide runner one, edge all is extended with the lower limit plane downwards, described guide runner one is connected in described slotted hole one by upper limit plane, lower limit plane, to limit described guide runner one, can only slide along the length direction of described slotted hole one.
Further, the thickness of described guide runner two is greater than the thickness of described slotted hole two, and described guide runner two carries out front and back at the interior through-thickness of described slotted hole two to slide, carry out left and right along described slotted hole two length directions and slide.
Further, be provided with reinforcement between described vertical bar and transverse bar.
The present invention, by the adaptive connection mechanism of 3 tie points of design, makes the reflecting surface unit can be adapted to the displacement campaign of rope net, and the load of bearing with minimizing reflecting surface unit, be conducive to guarantee telescopical precision, and has improved telescope useful life.
The 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.Yet the present invention can be presented as multiple multi-form, and should not be construed as the exemplary embodiment that is confined to narrate here.But, these embodiment are provided, thereby 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 explanation, here can use such as " on ", the space relative terms such as D score " left side " " right side ", the relation for element shown in key diagram or feature with respect to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise the different azimuth of device in using or operating.For example, if the device in figure is squeezed, be stated as the element that is positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, the exemplary term D score can comprise upper and lower orientation both.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and the relative explanation in space used here can correspondingly be explained.
As shown in Figures 1 to 4, the present invention has the large radio telescope of reflecting surface unit self-adapting connecting interface, comprise that 0 node 1,1 node 2 and 2 node 3,0 node 1,1 nodes 2 for connecting the reflecting surface unit include the reserved bar be fixedly connected with node dish 4, the connecting rod be connected with the reflecting surface unit with 2 nodes 3.
Reserved bar is the L-type structure, and its vertical bar 15 is fixedly connected with node dish 4, and transverse bar 16 is connected with connecting rod.Vertically between bar 15 and node dish 4, antirotation keys 17 is set, its bottom is fastening by double nut.Be provided with U-shaped connector 18 on connecting rod, 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.Vertically between bar 15 and transverse bar 16, be provided with the reinforcement 24 of reinforcement unitarity structural strength.
0 node 1 comprises reserved bar 1, connecting rod 1 and drum type pin 7, between reserved bar 1 and connecting rod 1, by drum type pin 7, is connected, and to realize three rotational freedoms between reflecting surface unit and node dish 4, and retrains three translational degree of freedom simultaneously.
Be provided with slotted hole 1 on the reserved bar 28 of 1 node 2, be provided with the guide runner 1 that can only slide along its length in slotted hole 1, be connected by drum type pin 7 between the connecting rod 2 11 of guide runner 1 and 1 node 2.By adopting drum type pin 7, can realize three rotational freedoms between reflecting surface unit and node dish 4 in 1 node 2, the slippage by guide runner 1 in slotted hole 1, can realize an one-movement-freedom-degree between reflecting surface unit and node dish 4.
Wherein, before and after the upper surface of guide runner 1, edge has all extended upward upper limit plane 22, before and after the lower surface of guide runner 1, edge all is extended with lower limit plane 23 downwards, guide runner 1 is connected in slotted hole 1 by upper limit plane 22, lower limit plane 23, with restricted guidance slide block 1, can only slide along the length direction of slotted hole 1.
Be provided with slotted hole 2 13 on the reserved bar 3 12 of 2 nodes 3, be provided with along its length the guide runner 2 14 slided with thickness direction in slotted hole 2 13, between the connecting rod 3 25 of guide runner 2 14 and 2 nodes 3, by drum type pin 7, be connected, pass through to adopt drum type pin 7 in 2 nodes 3, can realize three rotational freedoms between reflecting surface unit and node dish 4, two-way slippage by guide runner 2 14 in slotted hole 2 13, can realize two one-movement-freedom-degrees between reflecting surface unit and node dish 4.
In the present embodiment, the thickness that guide runner 2 14 is set is greater than the thickness of slotted hole 2 13, guide runner 2 14 can move slotted hole 2 13 is interior along its thickness direction like this, be that guide runner 2 14 carries out front and back at the interior through-thickness of slotted hole 2 13 and slides, guide runner 2 14 can carry out left and right along slotted hole 2 13 length directions and slides simultaneously.
In the present invention, 0 node 1,1 node 2 and 2 nodes 3 are all freely to rotate, namely without any rotational restraint.Aspect one-movement-freedom-degree, whole three one-movement-freedom-degrees of 0 node 1 constraint, namely do not have one-movement-freedom-degree; Two one-movement-freedom-degrees of 1 node 2 constraints, have an one-movement-freedom-degree; An one-movement-freedom-degree of 2 node 3 constraints, have two one-movement-freedom-degrees.Can guarantee that like this reflecting surface unit is a statically determinate structure, can in the some scale scope, be adaptive to any motion of rope net node, and not bear due to the producible additional load of socket point motion.
The present invention has following features:
1) meet degree of freedom requirement, slide smooth and easy, can guarantee the whole position shape precision of reflecting surface unit;
2) be convenient to the reflecting surface cellular installation, there is durability preferably, meet telescopical useful life;
3) independently install with the reflecting surface unit, be convenient to change, be easy to safeguard.
Claims (9)
1. the large radio telescope that there is reflecting surface unit self-adapting connecting interface, it is characterized in that, comprise 0 node, 1 node and 2 nodes for connecting the reflecting surface unit, 0 node, 1 node and 2 nodes include the reserved bar be fixedly connected with the node dish, the connecting rod be connected with the reflecting surface unit; Wherein, between the reserved bar one of 0 node and connecting rod one, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and retrain three translational degree of freedom simultaneously; Be provided with slotted hole one on the reserved bar two of 1 node, be provided with the guide runner one that can only slide along its length in slotted hole one, between the connecting rod two of guide runner one and 1 node, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and realize an one-movement-freedom-degree simultaneously; Be provided with slotted hole two on the reserved bar three of 2 nodes, be provided with along its length the guide runner two slided with thickness direction in slotted hole two, between the connecting rod three of guide runner two and 2 nodes, by the drum type pin, be connected, to realize three rotational freedoms between reflecting surface unit and node dish, and realize two one-movement-freedom-degrees simultaneously; The reflecting surface unit can be adaptive to the motion of rope net node by the connection of 3 tie points in setting range scale.
2. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 1, is characterized in that, described reserved bar is the L-type structure, and its vertical bar is fixedly connected with described node dish, and transverse bar is connected with described connecting rod.
3. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 2, is characterized in that, between described vertical bar and node dish, antirotation keys is set, and its bottom is fastening by double nut.
4. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 2, is characterized in that, is provided with U-shaped connector on described connecting rod, and described transverse bar is inserted in U-shaped connector.
5. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 4, is characterized in that, is provided with the gap of rotating for described drum type pin between described U-shaped connector and transverse bar.
6. the large radio telescope with 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 in bearing pin and oscillating bearing, loops closes, and in oscillating bearing, ring forms the syndeton of mutually rotating between described drum type pin and other parts.
7. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 1, it is characterized in that, before and after the upper surface of described guide runner one, edge has all extended upward upper limit plane, before and after the lower surface of described guide runner one, edge all is extended with the lower limit plane downwards, described guide runner one is connected in described slotted hole one by upper limit plane, lower limit plane, to limit described guide runner one, can only slide along the length direction of described slotted hole one.
8. the large radio telescope with 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 slotted hole two, and described guide runner two carries out front and back at the interior through-thickness of described slotted hole two to slide, carry out left and right along described slotted hole two length directions and slide.
9. the large radio telescope with reflecting surface unit self-adapting connecting interface as claimed in claim 2, is characterized in that, between described vertical bar and transverse bar, is 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 true CN103490170A (en) | 2014-01-01 |
| CN103490170B CN103490170B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109349A (en) * | 1990-01-23 | 1992-04-28 | Kaman Aerospace Corporation | Actively controlled segmented mirror |
| 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 |
| CN2891323Y (en) * | 2005-08-03 | 2007-04-18 | 同济大学 | Light-type tensioned reflection surface support structure |
| US20100201600A1 (en) * | 2007-07-30 | 2010-08-12 | Stephen Kaneff | Support frame for the dish of a large dish antenna |
| CN202165530U (en) * | 2011-07-20 | 2012-03-14 | 董福绵 | Speed reducer for lever box |
-
2013
- 2013-09-26 CN CN201310442628.2A patent/CN103490170B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109349A (en) * | 1990-01-23 | 1992-04-28 | Kaman Aerospace Corporation | Actively controlled segmented mirror |
| JP2004279899A (en) * | 2003-03-18 | 2004-10-07 | Mitsubishi Electric Corp | Reflection mirror support adjusting mechanism |
| CN2891323Y (en) * | 2005-08-03 | 2007-04-18 | 同济大学 | Light-type tensioned reflection surface support structure |
| CN1828077A (en) * | 2006-03-27 | 2006-09-06 | 曹江浪 | Drum-shaped pin type spherical hinge universal coupling |
| US20100201600A1 (en) * | 2007-07-30 | 2010-08-12 | Stephen Kaneff | Support frame for the dish of a large dish antenna |
| CN202165530U (en) * | 2011-07-20 | 2012-03-14 | 董福绵 | Speed reducer for lever box |
Non-Patent Citations (1)
| Title |
|---|
| 钱宏亮: "FAST主动反射面支承结构理论与试验研究", 《中国博士学位论文全文数据库工程科技II辑》 * |
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| Publication number | Publication date |
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| CN103490170B (en) | 2015-10-21 |
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Granted publication date: 20151021 Termination date: 20160926 |