An umbrella-shaped antenna deployment mechanism combined with a fixed-axis gear train and a lead screw

A technology of fixed-axis gear train and umbrella antenna, which is applied to folding antennas, mechanical equipment, belts/chains/gears, etc., can solve the problems of large impact of umbrella antenna deployment, large antenna storage volume, and inability to automatically fold, etc. Reliable shape, stable unfolding process, and the effect of avoiding gas leakage

Active Publication Date: 2021-12-28
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and propose an umbrella-shaped antenna deployment mechanism combined with a fixed-axis wheel train and a lead screw, so as to solve the problem of large impact of umbrella-shaped antenna deployment, insufficient reliability after deployment, and antenna storage problems. The problem of large size and non-automatic collapse

Method used

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  • An umbrella-shaped antenna deployment mechanism combined with a fixed-axis gear train and a lead screw
  • An umbrella-shaped antenna deployment mechanism combined with a fixed-axis gear train and a lead screw
  • An umbrella-shaped antenna deployment mechanism combined with a fixed-axis gear train and a lead screw

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Embodiment Construction

[0037] refer to figure 1, the present invention includes an antenna storage tube 1, a fixed-axis gear train 2, a screw 3, a central hub 4, an antenna rib 5, a screen reflective surface 6, a feed horn 7, a secondary reflective surface 8, and a spring 9. The antenna The storage tube 1 is a fixed component, which is used to envelop the folded state of the entire umbrella antenna; the fixed-axis gear train 2 is installed at the bottom of the storage tube 1, and each gear can rotate around its own axis; the lead screw 3. The lower end is fixedly connected with the gear corresponding to the fixed shaft gear train 2 with the coaxial center, that is, it is integrated with the gear; the central hub 4 is connected with the lead screw 3 through a transmission thread, so that the rotation of the lead screw 3 drives the center hub 4; the antenna rib 5 is connected to the central hub 4 by a hinge, so that its root can rotate around the hinge; the silk screen reflection surface 6 is laid on ...

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Abstract

The invention discloses an umbrella-shaped antenna deployment mechanism combined with a fixed-axis gear train and a lead screw, comprising an antenna storage cylinder, a fixed-axis gear train, a lead screw, a central hub, antenna ribs, a wire mesh reflective surface, a feed source horn, The auxiliary reflector and the spring are characterized in that: the antenna storage tube is a fixed member, which is used to envelop the retracted state of the entire umbrella antenna; the fixed-axis wheel train is installed at the bottom of the storage tube, and each gear can Rotate around its own axis; the lower end of the lead screw is fixedly connected with the coaxial center of the gear corresponding to the fixed-axis gear train, and is integrated with the gear; the central wheel hub and the lead screw are connected through transmission threads, and the lead screw The rotation drives the rise of the central hub. The invention has the advantages of small folded volume and high unfolded precision, and can be used in the design of small and high-precision umbrella antennas.

Description

technical field [0001] The invention belongs to the technical field of space-borne antennas, and in particular relates to an umbrella-shaped antenna deployment mechanism combining a fixed-axis wheel train and a lead screw in the technical field of space-borne antennas, which can be applied to the design of small-sized and high-precision umbrella-shaped antennas for CubeSats. Background technique [0002] The rapid development of aerospace technology has put forward higher and higher requirements for space-borne deployable antennas. Space-borne deployable antennas are an important part of satellite structures. At present, the relatively mature spaceborne deployable antennas, such as fixed-surface, inflatable, frame and peripheral truss and other deployable reflector antennas, are difficult to meet the requirements of high storage ratio and high precision at the same time. The umbrella-shaped deployable antenna has outstanding advantages in terms of storage ratio, surface dens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/08F16H21/54
CPCH01Q1/08F16H21/54
Inventor 张树新韩晓童邢永涛
Owner XIDIAN UNIV
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