A modular and compact passive deployment locking device

Abstract

The invention provides a modular and compact passive deployment locking device, which includes a deployment arm, a rotating shaft, a bearing washer, a rolling bearing, a deployment spring, a deployment spring core bearing sleeve, a pin lock slider, a pin lock thrust spring, a pin lock dial Rod, expansion spring core bearing sleeve, expansion spring, pin lock slider, pin lock thrust spring are evenly distributed in the envelope of the expansion arm, the expansion spring drives the expansion arm from the initial position to the locked position, expansion arm, rotating shaft, bearing washer , Rolling bearings form a rotary shaft system, the pin lock slider and the pin lock lever can move linearly in the corresponding piston hole in the unfolding arm as a whole, and the pin lock slider is pushed by the pin lock thrust spring, so that the pin lock slider enters the unfolding arm A self-locking structure with a certain pre-tightening force is formed in the corresponding pin lock groove on the top. The device of the invention has the characteristics of light weight, modularization, easy expansion, compact structure, high unfolding and locking rigidity, etc., is suitable for extending satellite loads such as antennas, and has wide application applicability.

Description

technical field [0001] The invention relates to a spacecraft structure and mechanism, in particular to a modular compact passive deployment locking device, which is suitable for the field of in-orbit extension and deployment of payloads in spacecraft such as satellites. Background technique [0002] With the development of aerospace technology, space deployable structures have gradually been widely used in the field of aerospace due to their reusability, convenient transportation and storage. Space expandable structures have increasingly high requirements for lightweight, high locking rigidity, and high-efficiency modularization of deployment locking devices. Existing conventional hinges and other deployment locking devices are difficult to meet the above requirements. Contents of the invention [0003] In view of the defects in the prior art, the object of the present invention is to provide a modularized compact passive deployment locking device, which has the characteri...

AI Technical Summary

Problems solved by technology

Space expandable structures have increasingly high requirements for lightweight, high locking rigidity, and high-efficiency modularization of deployment locking devices. Existing conventional hinges and other deployment locking devices are difficult to meet the above requirements

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