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Cable-stayed stretch-draw annular expandable antenna mechanism

A tensioning and cable-rod technology, which is applied in the directions of folding antennas, rotating antennas, and stretchable units, can solve problems such as stiffness reduction, and achieve the effects of weight reduction, rich material resources, enhanced overall stiffness, and repeated deployment accuracy

Active Publication Date: 2019-04-19
HARBIN INST OF TECH
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Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a cable rod tensioning ring-shaped deployable antenna mechanism, which has good reliability and compact structure, and overcomes the decrease in stiffness of the existing single-ring ring truss mechanism with the increase of the antenna aperture. The problem

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  • Cable-stayed stretch-draw annular expandable antenna mechanism
  • Cable-stayed stretch-draw annular expandable antenna mechanism
  • Cable-stayed stretch-draw annular expandable antenna mechanism

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] see figure 1 and figure 2 As shown, a cable-rod tension-type annular expandable antenna mechanism, the antenna mechanism includes a plurality of cable-rod tension-type expandable unit modules A; each cable-rod tension-type expandable unit module A includes The first expandable unit module A1 and the second expandable unit module A2, a plurality of first expandable unit modules A1 and a plurality of second expandable unit modules A2 are arranged alternately and connected together to form a cable rod tension ring truss.

[0032] This implementation mode adopts the design of the cable-strut tension type expandable unit module, which is beneficial to the overall deployment of the cable-strut tension type expandable unit module, and can meet the needs of antenna expansion.

[0033] Preferably, see image 3 and Figure 4 As shown, the f...

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Abstract

A cable-stayed stretch-draw annular expandable antenna mechanism relates to an expandable antenna mechanism and solves the problem that an existing annular truss mechanism has a decrease in stiffnesswith an increase in the diameter of an antenna, cannot meet the stiffness requirements and has a complicated driving mechanism, a large weight and low expansion reliability. The cable-stayed stretch-draw annular expandable antenna mechanism comprises a plurality of cable-stayed stretch-draw expandable unit modules. Each of the cable-stayed stretch-draw expandable unit modules comprises a first expandable unit module and a second expandable unit module which are connected together. The plurality of first expandable unit module and the plurality of second expandable unit modules are arranged alternately and connected together to form a cable-stayed stretch-draw annular truss after expanded. The cable-stayed stretch-draw annular expandable antenna mechanism is good in reliability, compact instructure, light in weight, easy to drive, high in stiffness after fully expanded, meets the requirements for a large-diameter antenna, and is applied to a communication satellite, a space station anda space detector.

Description

technical field [0001] The invention relates to an expandable antenna mechanism, in particular to a cable-rod tensioning ring-shaped expandable antenna mechanism, which belongs to the technical field of aerospace equipment and equipment. Background technique [0002] With the rapid development of space communication, earth observation, deep space exploration, and manned spaceflight, the demand for large-scale, lightweight, and high-geometric stability aerospace space agencies has become very urgent, but limited by the volume of the rocket fairing Due to the limitation of space travel, it is necessary to design a space-expandable mechanism with a large expansion ratio, which is in a folded state during the transportation and launch stages, and unfolds into a working state after the spacecraft enters orbit. The design and related research of the space folding mechanism is one of the key fundamental issues in the development of the future aerospace industry. With the gradual d...

Claims

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Application Information

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IPC IPC(8): H01Q1/08H01Q1/10
CPCH01Q1/08H01Q1/084H01Q1/10
Inventor 刘荣强史创张月郭宏伟邓宗全
Owner HARBIN INST OF TECH
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