A Spaceborne Deployable Antenna Extension Arm Locking System
A locking system and a technology of extending arms, which are applied in directions such as antennas and folded antennas suitable for movable objects, to achieve the effect of simple structure and accurate locking
Inactive Publication Date: 2016-11-02
XIDIAN UNIV
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- Description
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Problems solved by technology
Most of the existing space locking mechanisms are difficult to meet the above requirements
Method used
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[0017] like figure 1 , figure 2 As shown, a spaceborne deployable antenna extension arm locking system includes an extension arm locking mechanism and a structure matched with the locking mechanism on the extension arm; the extension arm locking mechanism at least includes a sleeve 3 and positioning pins 2 at both ends of the sleeve 3 And the spring 1 between the two positioning pins, when the positioning pins 2 at both ends of the spring 1 compress the spring, the positioning pins 2 can slide in the sleeve, and the extension arm locking mechanism is assembled on the extension arm. .
[0018] There is a U-shaped slot on the inner side of the two connecting ears of the joint of the forearm 7, and the outer side of the joint of the forearm 7 is matched with the inner side of the joint of the large arm 6; One side of the shaft is matched with the mounting holes of the small arm 7 and the large arm 6 .
[0019] refer to figure 1 and figure 2 , the U-shaped slot of the forea...
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The invention discloses a satellite-borne extendable antenna extending arm locking mechanism which comprises an extending arm locking mechanism and a structure arranged on an extending arm and matched with the locking mechanism, wherein the extending arm locking mechanism at least comprises a sleeve, positioning pins arranged at the two ends of the sleeve, and a spring between the two positioning pins, the positioning pins at the two ends of the spring can slide in the sleeve when the positioning pins compress the spring, the extending arm locking mechanism is assembled on connectors of a large arm body and a small arm body of the extending arm, the inner sides of two connection lugs of the connector of the small arm body are respectively provided with a U-shaped clamping groove, the outer side of the connector of the small arm is matched with the inner side of the connector of the large arm body, the large arm body is connected with the small arm body through a shaft, and the positioning pins at the two ends of the spring are connected with installation holes of the small arm body and the large arm body in a matching mode on one side of the shaft; when a large arm and a small arm of an antenna extend, the small arm rotates around a stud shaft located at the position where the large arm and the small arm are hinged together, and meanwhile, the positioning pins slide in a sliding groove in the small arm, and the two positioning pins slide into positioning holes and are clamped and locked after a required extension angle is reached. The mechanism can lock the position where the large arm is connected with the small arm accurately and reliably and achieve the extension of the antenna extending arm.
Description
technical field [0001] The invention relates to a locking mechanism, in particular to a space-borne deployable peripheral truss mesh antenna extending arm locking system. Background technique [0002] The extension arm of the satellite-borne deployable peripheral truss mesh antenna is composed of a large arm connected to the satellite and a small arm connected to the antenna body. It belongs to a one-dimensional one-way folding and deployable structure. Has locking mechanism. The extension arm of the space-borne deployable antenna is generally driven by a torsion spring or motor. When the extension arm is unfolded, the big arm and the star, the big arm and the small arm have certain deployment angle requirements. Accurate positioning and locking to ensure the accuracy of the deployment angle of the antenna arm. An extension arm locking mechanism with simple structure, accurate and reliable locking and positioning is crucial to the successful deployment of the space deploya...
Claims
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IPC IPC(8): H01Q1/28H01Q1/08
Inventor 张逸群李申杨东武王坤杜敬利张树新杨癸庚肖孟
Owner XIDIAN UNIV