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
CN104022337AActive Publication Date: 2014-09-03HARBIN INST OF TECH
5 Cites 35 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH
Publication Date
2014-09-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More