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A space expandable mechanism

A space and chord technology, applied in the field of V-bar-scissor type closed-loop single-degree-of-freedom mechanism, can solve the problem of no large and complex space expandable mechanism, and achieves improved expandability, improved error tolerance, Reliable effect

Active Publication Date: 2017-02-08
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is no large-scale and complex space expandable mechanism put into application at present.

Method used

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  • A space expandable mechanism
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  • A space expandable mechanism

Examples

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Embodiment 1

[0034] Such as Figure 4-Figure 6 As shown, the space expandable mechanism of this embodiment includes several (6) identical folding units; two adjacent folding units share a vertical pole; extension to form a cylindrical closed loop.

[0035] Among them, such as figure 1 As shown, the folding unit is a rectangle, which is symmetrical to the left and right, and includes:

[0036] Two identical vertical rods 101, 102 are arranged vertically;

[0037] Two identical first chords 201, 202, the starting ends of the two first chords 201, 202 are respectively connected to the upper ends of the two vertical rods 101, 102 through rotating joints 501, 502 (such as hinged, the same below); The ends of the first chords 201, 202 are connected to each other through a rotating pair 503 to form a V-shaped bar;

[0038] Two identical second chords 301, 302, the middle parts of the two second chords 301, 302 are connected to each other through the rotating pair 506 to form a scissor mechani...

Embodiment 2

[0044] The difference between this embodiment and embodiment 1 is: as Figure 7 As shown, the folding unit is trapezoidal, and a plurality of folding units extend laterally along a direction perpendicular to the vertical pole to form a conical closed loop.

Embodiment 3

[0046] The difference between this embodiment and Embodiment 1 is that a plurality of folding units extend longitudinally along the direction of the pole, and then extend transversely along the direction perpendicular to the pole to form a spatially extending arm mechanism.

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Abstract

The invention provides a space deployable mechanism comprising multiple identical folding deployable units which are arranged symmetrically left and right. Each folding deployable unit comprises two identical vertical rods arranged longitudinally, two identical first chord members, two identical second chord members and two identical third chord members, wherein the starting ends of the two first chord members are connected to the upper ends of the two vertical rods through rotating pairs respectively, the tail ends of the two first chord members are mutually connected through a rotating pair to form a V-type rod, the middles of the two second chord members are mutually connected through a rotating pair to form a scissor form mechanism, the starting ends of the two second chord members are connected to the lower ends of the two vertical rods through rotating pairs respectively, the starting ends of the two third chord members are connected to the lower middle parts of the two vertical rods through rotating pairs respectively, and the tail ends of the two third chord members are connected to the tail ends of the two second chord members through rotating pairs respectively. The space deployable mechanism is good in deployable performance, high in rigidity and error containment and low in machining and manufacturing requirement.

Description

technical field [0001] The invention belongs to the technical field of aerospace equipment and equipment, and relates to a V-shaped rod-scissor type closed-loop single-degree-of-freedom mechanism, which can be used for satellite parabolic antennas, space extension arms and the like. Background technique [0002] In modern society, information has become one of the most important resources, and the status of the antenna as an information receiving device is very important. With the rapid development of communication and space science, satellites have become the first choice for communication relay stations. In order to increase the amount of information transmitted, it is urgent to increase the aperture of the space antenna to improve its transmission bandwidth, signal gain and simplify the ground receiving device. Due to the limitation of the volume of the payload compartment of the rocket and the carrying capacity of the rocket, it is necessary to be able to shrink to a sm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/66
Inventor 李兵李树白邓宗全齐晓志
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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