Space deployable mechanism

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...

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