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A Double Layer Parallelogram Annular Deployable Truss

A parallelogram and ring-shaped technology, applied to antennas, antennas, antenna parts and other directions suitable for movable objects, can solve the problems of poor antenna folding height and poor structural stability, and achieve increased deployment height, reduced size, The effect of shrinking the caliber

Active Publication Date: 2020-03-13
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing problems of poor performance and poor structural stability in reducing the retracted height of the antenna, the present invention provides a double-layer parallelogram ring-shaped expandable truss, which can effectively improve the unfolded and folded aperture ratio of the deployable ring-shaped truss Compared with the unfolded and folded height, it effectively reduces the folded volume of the antenna and ensures the stability of the entire structure

Method used

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  • A Double Layer Parallelogram Annular Deployable Truss
  • A Double Layer Parallelogram Annular Deployable Truss
  • A Double Layer Parallelogram Annular Deployable Truss

Examples

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Embodiment 1

[0026] In order to overcome the existing problems of poor performance and poor structural stability in reducing the retracted height of the antenna, the present invention provides such as Figure 1-6 Shown is a double-layer parallelogram ring-shaped expandable truss. The invention can effectively improve the unfolded and folded diameter ratio and the unfolded and folded height ratio of the expandable ring truss, thereby effectively reducing the folded volume of the antenna and ensuring the integrity of the entire structure. stability.

[0027] A double-layer parallelogram ring-shaped expandable truss, which is composed of a plurality of parallelogram structural units, wherein each parallelogram structural unit includes two parallelogram structures, and the two parallelogram structures are the inner parallelogram structure and the outer parallelogram structure. The quadrilateral structure, the inner parallelogram structure and the outer parallelogram structure are respectively ...

Embodiment 2

[0030] Based on the above embodiments, in this embodiment, the inner parallelogram structure includes a first inner horizontal bar 3, a second inner horizontal bar 4, an inner inclined bar 8, a first inner slider 14. The second inner slider 16 and two vertical bars, the first vertical bar 1 and the second vertical bar 2; the first vertical bar 1 and the second vertical bar 2 are parallel to each other, and the first inner horizontal bar 3 and the second inner horizontal bar 4 are arranged parallel to each other between the first vertical bar 1 and the second vertical bar 2, and one end of the first inner horizontal bar 3 is hinged to the top end of the second vertical bar 2, the first inner The other end of the layer cross bar 3 is connected with the first vertical bar 1 through the first inner layer slider 14, and the first inner layer slider 14 is arranged at the bottom of the first vertical bar 1; One end is connected with the lower end of the first vertical bar 1, and the ...

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Abstract

The invention provides a dual-layer parallelogram annular expandable truss. The dual-layer parallelogram annular expandable truss consists of multiple parallelogram structural units, wherein each parallelogram structural unit comprises two parallelogram structures, and the two parallelogram structures include an inner layer parallelogram structure and an outer layer parallelogram structure which are positioned in different parallel planes respectively; and the adjacent parallelogram structural units share one vertical rod and are connected through a hinge to form a sealed annular expandable structure. In the annular expandable structure disclosed in the invention, the hinge and the vertical rod are in connection by adopting a sliding pair, and each sliding block is fixedly connected with along rod separately, so that in the structural unfolding process, each sliding block slides along the vertical rod, and each long rod extends outwards in the vertical direction, thereby highly increasing the unfolding height of the whole structure.

Description

technical field [0001] The invention belongs to the field of space-borne annular expandable antennas, and in particular relates to a double-layer parallelogram annular expandable truss. Background technique [0002] Large-scale spaceborne deployable antennas have broad application prospects and extremely important application values ​​in deep space exploration, modern communications and other fields, and have become a hot technology that the United States, Russia, Japan and other developed countries are competing to research. Due to the advantages of large aperture, light weight, high storage rate, and high precision, the loop deployable antenna has become a large-scale spaceborne antenna structure with great research value. [0003] The Northrop Grumman Company of the United States successfully developed the AstroMesh mesh reflector antenna, which is mainly composed of a ring-shaped expandable support truss, front and rear cable nets, and a metal reflector, and has not expe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/08H01Q1/12H01Q1/28
CPCH01Q1/08H01Q1/1235H01Q1/288
Inventor 杨东武谭国栋张逸群张涛李申张树新
Owner XIDIAN UNIV