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Intermittence distributary-type multi-folding and unlocking mechanism among hinge joints

A shunt-type, joint-type technology, which is applied in motor vehicles, aerospace equipment, spaceflight vehicles, etc., can solve the problems of not having repeated folding and unfolding functions, so as to improve mechanical efficiency and reliability, and drive power shunt routes to be short , Improve the effect of redundancy reliability

Inactive Publication Date: 2010-06-02
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

[0002] The multi-folding and unlocking mechanism is an important part of the inter-joint mechanism of spacecraft substructures such as antennas and solar wings. At present, most spacecraft substructures in China are one-time space unfolding and locking, and do not have the function of repeated folding and unfolding.

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  • Intermittence distributary-type multi-folding and unlocking mechanism among hinge joints
  • Intermittence distributary-type multi-folding and unlocking mechanism among hinge joints

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Embodiment Construction

[0014] In order to reduce the occupied space between joint hinges, reduce the amplification of system errors caused by excessive concentration of mechanical structures, and increase the power of single-way transmission, the present invention adopts an intermittent split-flow repeatable folding and unlocking mechanism, which is suitable for Deployment and unlocking of multi-level spacecraft substructures. The power source drives the rotation of the driven pulley through the transmission of the synchronous belt, thereby driving the action of the incompletely unfolded gear pair to realize the first branch of power. The movement characteristics of this branch are: the joint spindle rotates, the first incomplete outer The gear is fixed on the joint main shaft and rotates accordingly, the first incomplete internal gear rotates, and the three are coaxial to complete the folding and unfolding of the joint hinge. Afterwards, the incomplete gear pair is in an intermittent state, and the...

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Abstract

The invention discloses an intermittence distributary-type multi-folding and unlocking mechanism among hinge joints. The mechanism adopts two pairs of incomplete gear pairs to realize the intermittence distribution for folding and unlocking, and the power of the power source input hinge spindle is distributed on the functional mechanism by two pairs of incomplete gear pairs in an intermittence way. The invention effectively utilizes the space among the hinge joints, has compact structure and concentrated power; the intermittence distributary-type design avoids centralization of the mechanicalstructure, is easy to realize high-precision, high-reliability and heavy-load movement and can be applied to the mechanisms with multi-folding space and ground.

Description

technical field [0001] The invention relates to a multi-folding and unlocking mechanism, in particular to a multi-folding and unlocking mechanism used for joint hinges of spacecraft substructures such as folding antennas and solar wings. Background technique [0002] The multi-folding and unlocking mechanism is an important part of the inter-joint mechanism of spacecraft substructures such as antennas and solar wings. At present, most spacecraft substructures in China belong to one-time space unfolding and locking, and do not have the function of repeated folding and unfolding. That is, the sub-structure of the spacecraft is sent into space in a folded and compressed form, and is unfolded into the required configuration at one time after entering orbit. When the spacecraft changes orbit, the secondary structure in the unfolded state is prone to deformation and attitude disturbance. The invention aims to solve the problems of multiple unfolding-locking-unlocking-folding of t...

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Application Information

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IPC IPC(8): B64G1/22
Inventor 陈文华陈昌足胡明潘骏武秋红
Owner ZHEJIANG SCI-TECH UNIV