Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms

A modular and space-based technology, applied in folded antennas, antennas, electrical components, etc., can solve the problems of poor overall stiffness, umbrella-shaped antenna structure, expandable truss antenna structure, inability to form a parabolic cylinder, and low surface accuracy, to achieve Ease of popularization, improvement of profile precision, and effect of profile precision improvement

Active Publication Date: 2014-09-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to solve the problem of low surface precision, poor stability, poor overall rigidity, umbrella-shaped antenna structure that is not suitable for stretching and forming of reflective surfaces, and expandable truss antenna structures that exist in the existing unfolded parabolic cylindrical antenna structure. It can be deployed in one direction and cannot form a parabolic cylinder, and then provides a modular space curved surface folding antenna mechanism based on a rib mechanism

Method used

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  • Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms
  • Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms
  • Modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine Figure 1-Figure 9 Explain that a rib mechanism-based modular space curved surface folding antenna mechanism in this embodiment includes two speed control motors 3, two longitudinal connecting rib mechanisms 7, two folding connecting mechanisms N, and multiple transverse connecting rib mechanisms 6. Multiple single-rib mechanisms 1, multiple single-module folding mechanisms 5, multiple tensioning ropes 2 and multiple module connection mechanisms S;

[0025] Each single-module folding mechanism 5 includes a single-module folding mechanism center rod 9, a single-module folding mechanism slider 10, a single-module folding mechanism lower joint 11, a single-module folding mechanism upper joint 12, and a single-module folding mechanism. Elastic element 56 and four groups of folding and expanding docking mechanisms H; the upper end and lower end of the single-module folding and expanding mechanism central rod 9 are respectively fixed ...

specific Embodiment approach 2

[0042] Specific implementation mode two: combination Figure 5 As shown, the elastic element 4 of the single-rib mechanism in this embodiment is a compression spring. In this way, the compressed restoring force of the compressed spring is used as the main driving force for the deployment of the single-rib mechanism 1 . The structure is simple, easy to use, and meets the design requirements and actual needs. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0043] Specific implementation mode three: combination Figure 8 As shown, the elastic element 36 of the longitudinal connecting rib mechanism in this embodiment is a compression spring. In such a configuration, the compressed restoring force of the compression spring is used as the main driving force for the deployment of the longitudinal connecting rib mechanism. The structure is simple, easy to use, and meets the design requirements and actual needs. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to an antenna mechanism, in particular to a modular spatial curved surface folding and unfolding antenna mechanism based on rib mechanisms. The modular spatial curved surface folding and unfolding antenna mechanism aims to solve the problems that an existing unfolding-type parabolic cylinder antenna structure is low in molded surface precision, poor in stability and low in integral rigidity, an umbrella-shaped antenna structure is not suitable for reflecting surface stretch forming, and a truss antenna structure capable of being unfolded only can be unfolded unidirectionally but a parabolic cylinder can not be formed. The modular spatial curved surface folding and unfolding antenna mechanism comprises two speed-controlled motors, two longitudinal connection rib mechanisms, two folding and unfolding connection mechanisms, a plurality of transverse connection rib mechanisms, a plurality of single rib mechanisms, a plurality of single modular folding and unfolding mechanisms, a plurality of tensioning pull ropes and a plurality of modular connection mechanisms. Two transverse outer side supporting frames are arranged between the two longitudinal connection rib mechanisms in parallel and are respectively formed by connecting multiple transverse connection ribs in series, and the two folding and unfolding connection mechanisms, the single modular folding and unfolding mechanisms and the single rib mechanisms are arranged in the supporting frames. The modular spatial curved surface folding and unfolding antenna mechanism is applied to satellites, space stations and space probes.

Description

technical field [0001] The invention relates to a satellite antenna mechanism, in particular to a modular foldable antenna mechanism based on a rib mechanism for unfolding and supporting a satellite-borne parabolic cylindrical reflector antenna, and belongs to the technical field of satellite antenna structures. Background technique [0002] With the development and promotion of technology, space-borne large-scale deployable antennas have been widely used in navigation satellites, communication satellites, relay satellites, meteorological satellites and reconnaissance satellites. The traditional parabolic reflector antenna is composed of a metal parabolic reflective surface and supported by supporting components. The overall size and mass of the structure are relatively large, so it cannot be directly applied to spaceborne satellite antennas. In order to meet the needs of multi-function, multi-band, large capacity, high power and long life, the satellite antenna has put forw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q15/16
Inventor 郭宏伟刘荣强史创邓宗全
Owner HARBIN INST OF TECH
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