A modular and compact passive deployment locking device
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A locking device, compact technology, applied in the direction of transportation and packaging, space navigation equipment, space navigation equipment, etc., to achieve the effect of high locking rigidity, compact structure and high rotation precision
Active Publication Date: 2021-06-29
SHANGHAI SATELLITE ENG INST
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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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[0019] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0020] like Figure 1 to Figure 5 As shown, the deployment locking device provided by the present invention includes: deployment arm 1, rotating shaft 2, bearing washer 3, rolling bearing 4, deployment spring core bearing sleeve 5, deployment spring 6, pin lock slider 7, pin lock thrust spring 8 , Pin lock lever 9.
[0021] The deployment arm 1 adopts a lightweight design, and combines the design of the deployment locking part with the provision of a specific configuration length, and the modular expan...
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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...
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