Rope-driven foldable umbrella-shaped antenna

A rope-driven, umbrella-shaped antenna technology, applied in the aerospace field, to achieve the effect of reducing the number of drives, compact antenna structure, and high motion accuracy

Active Publication Date: 2021-07-16
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to save space in the non-working state and improve the transportation performance of curved antennas, many antenna reflectors are designed to be foldable, but the existing frame, sol

Method used

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  • Rope-driven foldable umbrella-shaped antenna
  • Rope-driven foldable umbrella-shaped antenna
  • Rope-driven foldable umbrella-shaped antenna

Examples

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] This embodiment provides a rope-driven foldable umbrella-shaped antenna, which can realize two-stage folding in the non-working state to save space and facilitate transportation; in the working state, the antenna can be resumed under the action of a spring; at the same time , the folding mechanism is also designed with a locking component for antenna deployment to ensure high rigidity after the antenna is deployed.

[0029] like figure 1 , figure 2 and Figure 6 As shown, the foldable umbrella-shaped antenna includes: a sector array, an intermediate column 4 , a locking component 5 , a rope driving component 6 , a ball head 8 and a link driving mechanism 9 .

[0030] The connection relationship of the foldable umbrella-shaped antenna is as follows: more than three sets of fan-shaped arrays are evenly distributed along a circumferential direction...

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Abstract

The invention belongs to the technical field of aerospace, discloses a rope-driven foldable umbrella-shaped antenna. The rope-driven foldable umbrella-shaped antenna comprises fan-shaped arrays, a middle column, locking assemblies, rope driving assemblies, a ball head and connecting rod driving mechanisms; more than three groups of fan-shaped arrays are uniformly distributed along a circumferential direction of the ball head to form the foldable umbrella-shaped antenna; the middle column abuts against the ball head; one connecting rod driving mechanism is arranged between the middle column and each fan-shaped array, and the connecting rod driving mechanism can drive all the fan-shaped arrays to be synchronously unfolded or secondarily folded relative to the middle column; each fan-shaped array is provided with one locking assembly; the rope driving assemblies are arranged between the locking assemblies and the ball head; when the umbrella-shaped antenna is unfolded, the rope driving assemblies drive the locking assemblies to be locked, when the umbrella-shaped antenna needs to be folded, the rope driving assemblies drive the locking assemblies to be unlocked, and each fan-shaped array can be subjected to primary folding in the circumferential direction.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a cable-driven foldable umbrella-shaped antenna. Background technique [0002] As a device used to effectively transmit and receive radio waves in radio systems such as broadcasting, television, navigation, radar and communications, antennas play an irreplaceable role in the aerospace field. For the radar with curved surface antenna, it will occupy a large spatial position in the unfolded state, which seriously restricts its maneuverability. In order to save space in the non-working state and improve the transportation performance of curved antennas, many antenna reflectors are designed to be foldable, but the existing frame, solid surface, inflatable and peripheral truss antennas are all It is difficult to meet the requirements of high rigidity, high storage ratio, high precision, and large diameter at the same time. In contrast, the umbrella-shaped deployable antenna has o...

Claims

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Application Information

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IPC IPC(8): H01Q1/08H01Q15/16
CPCH01Q1/08H01Q15/162
Inventor 赵杰亮吴祥兵王文中
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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