High-precision umbrella antenna mesh splicing method and adaptive splicing device thereof

An umbrella antenna and splicing device technology, which is applied in the field of a high-precision umbrella antenna mesh surface splicing method and an adaptive splicing device, can solve problems such as adverse effects on electrical performance, and achieve a shortened development cycle, cost savings, and excellent performance. Effect

Active Publication Date: 2017-11-24
XIAN SPACE STAR TECH IND GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) The splicing of the parabolic surface is complete, and the seams cannot have adverse effects on the electrical properties;

Method used

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  • High-precision umbrella antenna mesh splicing method and adaptive splicing device thereof
  • High-precision umbrella antenna mesh splicing method and adaptive splicing device thereof
  • High-precision umbrella antenna mesh splicing method and adaptive splicing device thereof

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Experimental program
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Embodiment Construction

[0038] The present invention will be described in detail below in combination with specific embodiments.

[0039] When splicing the mesh surface of the umbrella antenna, first cut the mesh surface into an isosceles trapezoid that can cover a sector, and measure the arc length of the innermost circle, the arc length of the outermost circle, and the length of the reflecting surface-shaped bus according to the three-dimensional model of the antenna. On the basis of the length, each side is extended outward by 50-100mm, and the result is as follows image 3 For the shape shown, the size margin can be adjusted according to the implementation requirements when cutting the metal mesh.

[0040] In order to make the mesh surface easy to assemble on the antenna and have the function of micro-adjustment of the position, the present invention uses a 0.8mm thick carbon fiber sheet, which has a certain degree of flexibility, and the metal mesh of adjacent sectors is connected by sewing with...

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PUM

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Abstract

The invention relates to a high-precision umbrella antenna mesh splicing method and an adaptive splicing device thereof. The method comprises the following steps: firstly, assembling the adaptive splicing device, radially assembling a plurality of arched mesh support components on a base plate, assembling a carbon fiber plate on an upper surface of the outermost mesh support component, and assembling a plurality of pre-tensioning pulleys on the edge of the base plate; before splicing a metal mesh, calculating the tension loaded on the location of each pre-tensioning pulley to determine the weight of counterweights; connecting the counterweights with the corresponding weight to the periphery of the metal mesh through a string, and enabling the string to vertically droop through the corresponding pre-tensioning pulley; and enabling the metal mesh to be overlapped with the carbon fiber plate at the location of the carbon fiber plate, and stitching the metal mesh with the carbon fiber plate to complete splicing. The high-precision umbrella antenna mesh splicing method and the adaptive splicing device thereof disclosed by the invention can meet various functional requirements, are excellent in performance, and can be widely applied to umbrella deployable antennae subsequently.

Description

technical field [0001] The invention relates to the technical field of satellite mesh antennas, in particular to a high-precision umbrella antenna mesh splicing method and an adaptive splicing device thereof. Background technique [0002] In order to meet the envelope requirements during satellite launch, the large-aperture antenna should have the characteristics of high storage ratio. When the satellite is launched, the antenna is locked and stored on the satellite platform, and then unfolded into a working state after being in orbit (such as figure 1 ), which requires the antenna product to be able to realize the functions of folding and unfolding in addition to the established mission functions. [0003] The radial rib umbrella-shaped deployable antenna is mainly composed of radial ribs, rib deployment mechanism, mesh main reflector, sub-reflector, feed source assembly, supporting truss and so on. In order to realize the antenna retraction, the main reflector adopts a me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/14H01Q15/16
CPCH01Q15/141H01Q15/161
Inventor 李菡华岳王波兰亚鹏曹宇
Owner XIAN SPACE STAR TECH IND GRP
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