CN209526211U - A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame - Google Patents
A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame Download PDFInfo
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- CN209526211U CN209526211U CN201822129403.2U CN201822129403U CN209526211U CN 209526211 U CN209526211 U CN 209526211U CN 201822129403 U CN201822129403 U CN 201822129403U CN 209526211 U CN209526211 U CN 209526211U
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Abstract
The utility model discloses a kind of high-precision hexagonal space bilayer reflecting surface antenna back frames, it is related to the high-precision reflecting surface antenna back frame structure-design technique in the fields such as communication, observing and controlling and radio astronomy.It is intended to provide a kind of high-precision, lightweight, antenna back frame easy to install and suitable for mass production.It includes upper chord plane, lower chord plane, space brace, skew back bar, gate frame, connecting bracket, braced frame, positioning pillars and bolt sphere etc..Backrest shape is hexagonal, including upper and lower two layers, and upper chord plane is made of triangular element, lower chord plane is made of triangle and quadrilateral units, it is combined between upper layer and lower layer by pyrometric cone, forms stable space structure, each rod piece of backrest is connected with each other by bolt sphere.The utility model has the characteristics that the rigidity of structure is good, light-weight and with high accuracy, especially suitable for the antenna back frame structure in large and medium-sized reflector antenna.
Description
Technical field
High-precision reflector antenna the utility model relates to communicate, in the fields such as observing and controlling and radio astronomy, more specifically
Ground is said, the back frame structure of high accuracy circular symmetric reflective surface antenna or offset reflector antenna is related to, and is particularly suitable in high volume, fastly
The production and manufacture of the medium caliber reflector antenna of speed installation.
Background technique
Reflecting surface antenna back frame is the important component of reflector antenna, and top is connected with aerial panel, lower part with
Mounting is connected.Antenna back frame is used to support panel and provides rigidity for it, the surface accuracy and main performance of antenna directly by
Backrest determines.Therefore, reflecting surface antenna back frame structure is the core component in entire antenna system.
Traditional reflecting surface antenna back frame is usually to be made of centerbody, radiation beam and ring pull rod etc., radiates beam along center
The distribution of body even circumferential, and connected by ring pull rod and form antenna back frame.Centerbody uses drum forms, and inside is lined with reinforcing rib
Plate, welded molding；If radiation Liang Shiyou dry shaped material forms truss structural after weld formation.Although this back frame structure form
It can satisfy antenna electrical performance index, but have the following deficiencies:
1 weight weight.Since centerbody is formed using solid plate, it is being internally provided with circumferential and radial stiffener plate, outside
Portion is provided with numerous flanges connecting with radiation beam, and antenna back frame weight is caused to increase.
2 are also easy to produce deformation.Its main component of traditional antenna back frame uses welding fabrication, is also easy to produce answers in the fabrication process
Power is concentrated, and the reflector antenna after causing installation is also easy to produce deformation, reduces antenna performance.
3 surface accuracies are poor.The traditional antenna backrest being made of centerbody and radiation beam and ring pull rod, center body position
Rigidity is very high, and radiates that beam position stiffness is on the weak side, causes backrest discontinuous in the rigidity of binding site, so that antenna surface is smart
Degree is deteriorated.
China Patent Publication No. CN101527384A, it is entitled " equilibrium stable space grid reflecting surface antenna back frame
Manufacturing method " in disclose a kind of design method of reflecting surface antenna back frame.Although this method can be improved some antenna back frames
Overall stiffness, but had the disadvantage that in configuration aspects
Antenna back frame in 1 utility model is made of three-decker: where upper chord plane, lower chord plane and quadrangle conical point
Face.It is big that this has resulted in antenna back frame rod piece distribution density, and processing and manufacturing is complicated, weight weight.
Chord plane is made of quadrilateral units on antenna back frame in 2 utility models, it is well known that quadrilateral structure has
Unstability, therefore, this method easily make reflector antenna generate local deformation in doing pitching movement, influence the surface of antenna
Precision.
3 utility models only relate to round symmetric reflective surface antenna, are polygon for non-circular symmetric reflective surface antenna or shape
The reflector antenna of shape, party's rule are not applicable.
China Patent Publication No. CN104638381A, it is entitled " five equal part reflecting surface unit of FAST radio telescope space "
In disclose a kind of triangle reflecting surface unit of double-layer structure, although this method is suitable for spy as FAST radio telescope
Determine engineering, but the application for general reflector antenna, has the following deficiencies:
The cell configuration provided in 1 utility model is triangle, and reflector antenna is generally circular, oval
Shape or polygon, therefore the utility model is not suitable for general reflecting surface antenna back frame structure.
Reflecting surface unit supporting point in 2 utility models is located at the vertex position of outside three of triangle.This kind support
It is huge to will lead to support construction volume for reflector antenna for mode.
Reflection surface panel in 3 utility models uses perforated panel or aluminium alloy wire side panel, the panel of this class formation
It is not applicable to work in high-frequency reflector antenna.
The content of utility model
The purpose of the utility model is to overcome the deficiencies in the prior art, and it is double-deck anti-to provide a kind of high-precision hexagonal space
Penetrate surface antenna backrest, compared with existing reflecting surface antenna back frame, have precision is high, light-weight, rigidity greatly and can be quick
The characteristics of installation.The utility model reflecting surface antenna back frame uses hexagonal space bilayer bolt sphere structure type, and upper chord plane is equal
It is made of triangular element, bolt sphere can effectively improve the surface essence of antenna using hollow structure and through numerical control machine-shaping
Degree and installation effectiveness, while can reduce manufacturing cost and installation, transportation cost.
In order to solve the above technical problems, the utility model is to be achieved by the following technical programs.
A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame, it is characterised in that: including being mirrored into a symmetrical left side
Space frame and right space frame, left space frame include for the connected upper chord plane 1 with antenna reflective face and for providing firm support
It is oppositely arranged, is formed between upper chord plane 1 and lower chord plane 2 empty at equal intervals before and after the lower chord plane 2 of structure, upper chord plane 1 and lower chord plane 2
Alveolus；
Upper chord plane 1 includes that multiple groups are winded up bar portion, and every group of bar portion of winding up is end to end at closed triangle by three top booms,
Each top boom, which connects, is arranged into the curved-surface structure with reflection trench, the public affairs that each top boom group intersects with adjacent top boom group
Side shares a top boom altogether, forms the net surface structure with multiple triangle dead zones by multiple top boom groups；
Lower chord plane 2 includes multiple groups lower edge bar portion, and every group of lower edge bar portion is end to end at closed triangle by three lower booms,
Each lower boom, which connects, is arranged into the curved-surface structure with reflection trench, the public affairs that each lower boom group intersects with adjacent lower boom group
Side shares a top boom altogether, forms the net surface structure with multiple triangle dead zones by multiple lower boom groups；
Each center for winding up bar portion and each lower edge bar portion is staggered, the vertex for bar portion of each winding up and three phases successively phase
The lower edge bar portion center vertical line connect is overlapped, and the vertex of each lower edge bar portion passes through space brace 3 and is connected to positioned at center vertical line
On bar portion fixed point of winding up at form three face gold word structure of space, each space brace 3 is all located in cavity zone；
Pass through multiple equidistant cross bar connections, multiple equidistant cross bars between the left space frame and right space frame
Completely cut off multiple rectangles being linearly arranged successively out.
Further, the upper chord plane 1 is the hexagon that each edge line is broken line.
It further, further include braced frame 7, the central lower of lower chord plane 2 is provided with the open region for accommodating braced frame 7
Domain, braced frame 7 are arranged in open area and are fixedly connected with upper chord plane 1.
Further, the braced frame 7 is trapezoidal.
It further, further include gate frame 5, gate frame 5 is by the left gate frame and You Men that are symmetrically mirrored into
Type frame composition, left gate frame are connect with right gate frame by ring flange, and left gate frame and right gate frame all pass through
Two V-type framves are connected at the corresponding vertex of braced frame 7.
Further, the top boom, lower boom, space brace 3, skew back bar 4 all pass through end high intensity outstanding
Bolt collocation nut is fastened on round tube conehead.
Further, the intermediate reinforcement support that bottom is connected to by upper bottom edge is fixed with along the middle line of braced frame 7
Bar, the upper bottom edge and bottom of braced frame 7 are steel square tube, and two sides waist edge is steel rectangular tube, and centre reinforces support rod and is
Steel rectangular tube.
Further, the braced frame 7 includes left trunnion 7-1 and right trunnion 7-2, Zuo Zhier 7-1 and right trunnion 7-2
It is connected by ring flange with the long bottom edge of braced frame 7；The braced frame 7 further includes pivot flange disk 7-3, pivot flange
Reinforce support rod prolongation among disk 7-3 and braced frame 7 to be connected.
The utility model has the following beneficial effects: compared with the background art
Compared with prior art, antenna back frame uses hexagonal structure to 1 the utility model, overcomes traditional round or ellipse
The not tractable defect in circular configuration edge, simplifies the design of antenna back frame and panel；Chord plane uses triangle list in backrest
Member composition, has stable mechanical property, is able to ascend the surface accuracy of antenna.
It is connected between 2 upper and lower chord planes by triangle wimble structure, is distributed rod piece distribution in space uniform, overcomes biography
The backrest radiation beam of system is the deficiency of planar structure, and the rigidity of antenna back frame greatly improved, enhance the dynamic of antenna system
Characteristic.
Connection between the upper chord planes of 3 the utility model antenna back frames, lower chord plane, space brace and skew back bar is all made of number
Control the bolt sphere of processing, therefore, it is assembled after antenna back frame precision is high, interchangeability is good, made especially suitable for producing in enormous quantities
It makes.
4 the utility model antenna back frames are made of member structure, without the central body of traditional reflector antenna
Point, it had not only reduced difficulty of processing in this way but also had alleviated the weight of antenna back frame.
All rod pieces of 5 antenna back frames and structural member pass through bolt sphere and ring flange is attached, transporting after decomposition
Unit is adapted to highway transportation and TEU (Twenty-foot Equivalent Unit).
Chord plane is made of triangular element in 6 the utility model antenna back frame structures, is very suitable for the face of supported at three point
Plate is chiefly used in high-frequency, on high-precision telescope antenna since supported at three point panel does not have superfluous constraint, therefore this is practical new
Type is more suitable for large-scale high-precision reflecting surface antenna back frame.
In short, the utility model is skillfully constructed, and clear thinking, it is easy to accomplish, both solved traditional reflecting surface antenna back
The problem that frame structure precision is low, weight is heavy, and the rigidity and installation accuracy of antenna back frame are improved, it is one kind to the prior art
Important improvement.
Detailed description of the invention
Fig. 1 is the overall construction drawing of the utility model embodiment；
Fig. 2 is the upper chord plane structural schematic diagram of the utility model embodiment；
Fig. 3 is the lower chord plane structural schematic diagram of the utility model embodiment；
Fig. 4 is the space brace and skew back rod structure schematic diagram of the utility model embodiment；
Fig. 5 is the gate frame structure chart of the utility model embodiment；
Fig. 6 is the connection mounting structure figure of the utility model embodiment；
Fig. 7 is three face gold word structure structure chart of space；
Fig. 8 is support frame structure figure；
The meaning of each label is as follows in figure: upper chord plane 1, top boom 1a, lower chord plane 2, space brace 3, three face gold word of space
Structure 4, gate frame 5, braced frame 7, Zuo Zhier 7-1, right trunnion 7-2, pivot flange disk 7-3.
Specific embodiment
The utility model will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1-3, providing a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame includes being mirrored into pair
The left space frame and right space frame of title, left space frame include for the upper chord plane 1 connected with antenna reflective face and for providing surely
The lower chord plane 2 of clamped support structure, upper chord plane 1 is oppositely arranged with lower 2 front and back of chord plane or up and down, between upper chord plane 1 and lower chord plane 2
Equidistant cavity zone is formed, is used to be placed in the connection structure for being coupled the two in cavity zone
As shown in Fig. 2, upper chord plane 1 includes that multiple groups are winded up bar portion, every group wind up bar portion by three top booms it is end to end at
Closed triangle, each top boom 1a connect is arranged into reflection trench curved-surface structure, each top boom group and it is adjacent on
The common edge of chord member group intersection shares a top boom, forms the wire side knot with multiple triangle dead zones by multiple top boom groups
Structure；
As shown in figure 3, lower chord plane 2 include multiple groups lower edge bar portion, every group of lower edge bar portion by three lower booms it is end to end at
Closed triangle, each lower boom, which connects, is arranged into the curved-surface structure with reflection trench, each lower boom group and adjacent lower edge
The common edge of bar group intersection shares a top boom, forms the wire side knot with multiple triangle dead zones by multiple lower boom groups
Structure, the top boom, lower boom, space brace 3, skew back bar 4 are all tight by end high-strength bolt collocation nut outstanding
Gu to round tube conehead；
As shown in figures 1 and 3, each center for winding up bar portion and each lower edge bar portion is staggered, the top for bar portion of each winding up
Point is overlapped with the lower edge bar portion center vertical line that three phases successively connect, and the vertex of each lower edge bar portion passes through the company of space brace 3
It is connected at the bar portion fixed point of winding up being located on the vertical line of center and forms three face gold word structure 4 of space, each space brace 3 is all located at sky
In alveolus, connection forms single antenna body structure.
Pass through multiple equidistant cross bar connections, multiple equidistant cross bars between the left space frame and right space frame
Completely cut off multiple rectangles being linearly arranged successively out, the upper chord plane 1 is the hexagon that each edge line is broken line.
It further include braced frame 7, the central lower of lower chord plane 2 is provided with the open area for accommodating braced frame 7, support frame
Frame 7 is arranged in open area and is fixedly connected with upper chord plane 1, and the braced frame 7 is trapezoidal.
As shown in Figures 5 to 7, it is located at antenna body back and is equipped with gate frame 5, gate frame 5 is by being symmetrically mirrored into
Left gate frame and right gate frame composition, left gate frame connect with right gate frame by ring flange, left gate frame
All pass through two V-type framves with right gate frame to be connected at the corresponding vertex of braced frame 7, it is solid along the middle line of braced frame 7
Surely there is the intermediate reinforcement support rod that bottom is connected to by upper bottom edge, the upper bottom edge and bottom of braced frame 7 are steel square tube,
Two sides waist edge is steel rectangular tube, and it is steel rectangular tube that support rod is reinforced in centre.
The braced frame 7 includes that left trunnion 7-1 and right trunnion 7-2, Zuo Zhier 7-1 and right trunnion 7-2 pass through flange
Disk is connected with the long bottom edge of braced frame 7；The braced frame 7 further includes pivot flange disk 7-3, pivot flange disk 7-3 with
Reinforce support rod prolongation among braced frame 7 to be connected.
The above is only the most preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
Change according to the utility model technical spirit any simple modification, change and equivalent structure to the above embodiments, still
Belong in the protection scope of technical solutions of the utility model.
Claims (8)
1. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame, it is characterised in that: including being mirrored into symmetrical left sky
A structure of an essay and right space frame, left space frame include for the connected upper chord plane (1) with antenna reflective face and for providing firm support
It is oppositely arranged before and after the lower chord plane (2) of structure, upper chord plane (1) and lower chord plane (2), is formed between upper chord plane (1) and lower chord plane (2)
Equidistant cavity zone；
Upper chord plane (1) includes that multiple groups are winded up bar portion, and every group of bar portion of winding up is end to end at closed triangle by three top booms, respectively
A top boom, which connects, is arranged into the curved-surface structure with reflection trench, and each top boom group intersects public with adjacent top boom group
Side shares a top boom, forms the net surface structure with multiple triangle dead zones by multiple top boom groups；
Lower chord plane (2) includes multiple groups lower edge bar portion, and every group of lower edge bar portion is end to end at closed triangle by three lower booms, respectively
A lower boom, which connects, is arranged into the curved-surface structure with reflection trench, and each lower boom group intersects public with adjacent lower boom group
Side shares a top boom, forms the net surface structure with multiple triangle dead zones by multiple lower boom groups；
Each center for winding up bar portion and each lower edge bar portion is staggered, and the vertex for bar portion of each winding up successively connects with three phases
Lower edge bar portion center vertical line is overlapped, and the vertex of each lower edge bar portion passes through space brace (3) and is connected on the vertical line of center
Bar portion fixed point of winding up at form three face gold word structure of space, each space brace (3) is all located in cavity zone；
Pass through multiple equidistant cross bar connections, multiple equidistant cross bar isolations between the left space frame and right space frame
Multiple rectangles being linearly arranged successively out.
2. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: institute
The upper chord plane (1) stated is the hexagon that each edge line is broken line.
3. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 1, it is characterised in that: also
Including braced frame (7), the central lower of lower chord plane (2) is provided with the open area for accommodating braced frame (7), braced frame
(7) it is arranged in open area and is fixedly connected with upper chord plane (1).
4. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 3, it is characterised in that: institute
The braced frame (7) stated is trapezoidal.
5. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 3, it is characterised in that: also
Including gate frame (5), gate frame (5) is made of the left gate frame being symmetrically mirrored into and right gate frame, left-hand door
Type frame is connect with right gate frame by ring flange, and left gate frame and right gate frame all pass through two V-type framves and be connected to
At the corresponding vertex of braced frame (7).
6. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 5, it is characterised in that: institute
Top boom, lower boom, space brace (3), the skew back bar (4) stated all are fastened to round tube by end bolt collocation nut outstanding
On conehead.
7. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 3, it is characterised in that: edge
The middle line of braced frame (7) be fixed with and the intermediate of bottom is connected to by upper bottom edge reinforces support rod, braced frame (7) it is upper
Bottom edge and bottom are steel square tube, and two sides waist edge is steel rectangular tube, and it is steel rectangular tube that support rod is reinforced in centre.
8. a kind of high-precision hexagonal space bilayer reflecting surface antenna back frame according to claim 7, it is characterised in that: institute
The braced frame (7) stated includes left trunnion (7-1) and right trunnion (7-2), and Zuo Zhier (7-1) and right trunnion (7-2) pass through flange
Disk is connected with braced frame (7) long bottom edge；The braced frame (7) further includes pivot flange disk (7-3), pivot flange disk
(7-3) is connected with reinforcement support rod prolongation among braced frame (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822129403.2U CN209526211U (en) | 2018-12-18 | 2018-12-18 | A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822129403.2U CN209526211U (en) | 2018-12-18 | 2018-12-18 | A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449604A (en) * | 2018-12-18 | 2019-03-08 | 中国电子科技集团公司第五十四研究所 | A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame |
| CN112436292A (en) * | 2020-11-23 | 2021-03-02 | 西安电子科技大学 | Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure |
-
2018
- 2018-12-18 CN CN201822129403.2U patent/CN209526211U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449604A (en) * | 2018-12-18 | 2019-03-08 | 中国电子科技集团公司第五十四研究所 | A kind of high-precision hexagonal space bilayer reflecting surface antenna back frame |
| WO2020125384A1 (en) * | 2018-12-18 | 2020-06-25 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflective surface antenna back frame |
| CN109449604B (en) * | 2018-12-18 | 2024-03-26 | 中国电子科技集团公司第五十四研究所 | High-precision hexagonal space double-layer reflecting surface antenna back frame |
| CN112436292A (en) * | 2020-11-23 | 2021-03-02 | 西安电子科技大学 | Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure |
| CN112436292B (en) * | 2020-11-23 | 2021-07-27 | 西安电子科技大学 | Reflecting surface antenna based on three-telescopic-rod driving and quasi-geodesic grid structure |
| WO2022105200A1 (en) * | 2020-11-23 | 2022-05-27 | 西安电子科技大学 | Reflector antenna based on three telescopic rod drives and quasi-geodetic grid structure |
| US11764457B2 (en) | 2020-11-23 | 2023-09-19 | Xidian University | Reflective surface antenna based on triple telescopic rod drive and quasi-geodesic grid structure |
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