Hinge mechanism capable of being stacked and unfolded and folded and using method

Abstract

The invention discloses a hinge mechanism capable of being stacked, unfolded and folded and a using method. The head end of an inner hinge rod assembly of each hinge unit in the hinge mechanism is located on the inner side of the tail end of an outer hinge rod assembly and connected through a mandrel. One end of the bolt is fixedly connected with the mandrel; in the unfolding state, the protruding shaft is matched with the inner locking hole and the outer locking hole at the same time, and unfolding locking is achieved. When the unfolding state is converted into the folding state, the mandrel is moved to drive the plug pin to move until the protruding shaft is unmatched with the outer locking hole, and unlocking is achieved; and when the folding state is converted into the unfolding state, the inner hinge rod assembly rotates around the mandrel until the inner locking hole corresponds to the outer locking hole, and the bolt is simultaneously matched with the inner locking hole and the outer locking hole again under the elastic force of the spring. The invention is applied to large spacecrafts such as space stations and satellites, can realize on-orbit multiple unfolding and folding of the solar wing, and can effectively reduce the outer envelope size of the spacecraft launched along with a carrier rocket in a launch state.

Description

technical field [0001] The invention belongs to the technical field of expandable mechanisms of spacecraft, and in particular relates to a hinge mechanism capable of deploying and locking as well as folding and stacking. Background technique [0002] With the development of large-scale spacecraft missions in China, large-area solar wings are used to meet the needs of large-scale spacecraft on-orbit high power. The large-scale extension mechanism is one of the core components of the large-area solar wing of the large-scale spacecraft, which realizes repeated expansion, support and precise positioning of the solar wing in orbit for many times. In order to meet the requirements of long-term on-orbit operation of large-scale spacecraft and multiple on-orbit deployment and retraction of solar wings, the deployment mechanism needs to have a high stackable storage ratio and a post-deployment locking function to ensure the on-orbit deployment stiffness and strength of the mechanism....

AI Technical Summary

Problems solved by technology

[0003] The deployment mechanisms of the solar wings of space aircraft widely used at present are all passive deployment hinge mechanisms, which do not have the function of repeatable deployment and retraction in orbit, and do not have the function of stacking and large storage ratio, and cannot adapt to large-area expandable and retractable environments. solar cell wing

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