Single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly

A technology of unfolding mechanism and umbrella antenna, which is applied in the direction of folding antenna, antenna suitable for movable objects, antenna, etc. It can solve the problems of poor synchronization and non-automatic folding.

Active Publication Date: 2021-09-10
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention can effectively solve the problem that it cannot be automatically folded after unfolding, and the synchronization is poor. At the same time, the present invention can be applied to the design of high-precision large-diameter umbrella antennas

Method used

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  • Single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly
  • Single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly
  • Single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040] Aiming at the problems existing in the prior art, the present invention provides a single-folding umbrella antenna deployment mechanism that can be deployed repeatedly. The present invention will be described in detail below with reference to the accompanying drawings.

[0041] Ordinary technicians in the industry of the repeatable retractable single-fold umbrella antenna deployment mechanism provided by the present invention can also use other steps to implement, figure 1 The re-deployable single-fold umbrella antenna deployment mechanism provided by the present invention is only a specific embodiment.

[0042] Suc...

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Abstract

The invention belongs to the technical field of satellite-borne antennas, and discloses a single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly. In the single folding umbrella antenna unfolding mechanism capable of being unfolded and folded repeatedly, a lower push plate is connected with an upper push plate through a screw, a limiting boss is clamped between the lower push plate and the upper push plate, and a supporting plate is installed between the lower push plate and a bottom plate; the limiting boss is positioned in the lower end of an antenna rib, and the front end of the antenna rib is matched with the guide groove. The umbrella antenna is controllably unfolded and folded through the motor, large impact force generated when the torsional spring is unfolded is avoided, and repeated unfolding and folding can be conducted. According to the invention, antenna unfolding and synchronism can be maintained without meshing of a planet wheel and a sun wheel, the installation steps are reduced, and the reliability is improved. Unfolding and folding of the umbrella antenna depend on coordination of the lead screw nut and the lead screw, the umbrella antenna can have a self-locking function through work and stop of the motor, and extra workload for increasing a self-locking mechanism is reduced.

Description

technical field [0001] The invention belongs to the technical field of space-borne antennas, in particular to a deployable mechanism for a single-fold umbrella antenna that can be unfolded repeatedly. Background technique [0002] At present, the umbrella-shaped deployable antenna has high precision, strong rigidity, and small deformation of the surface under the influence of the space environment. A single folding umbrella antenna unfolding mechanism that can be unfolded and retracted repeatedly can better unfold and fold the umbrella antenna, and has better positioning ability. [0003] In 2017, Jonathan Sauder of the Jet Propulsion Laboratory of Caltech and others improved a small-aperture umbrella antenna (Jonathan Sauder, Nacer Chahat, Brian Hirsch, Richard Hodges, and Eva Peral, From Prototype to Flight: Qualifying a Ka-band Parabolic Deployable Antenna (KaPDA) for CubeSats, 4th AIAA Spacecraft Structures Conference, 9-13 January 2017, Grapevine, Texas, USA). The d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/10H01Q1/12H01Q1/28
CPCH01Q1/103H01Q1/10H01Q1/12H01Q1/288
Inventor 张树新于亦奇曹政韩晓童
Owner XIDIAN UNIV
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