Two-dimensional turntable locking and unlocking device for spacecraft

Abstract

The invention provides a two-dimensional turntable locking and unlocking device suitable for spacecraft, comprising: an unlocking rotating device (101) and a connecting bracket (102); the unlocking rotating device (101) and the connecting bracket (102) are tightly fixed connection; the unlocking rotation device (101) includes: a pressure plate (201), a flexible compression release device (202) and a female hinge (203); the pressure plate (201) is connected to the female hinge through the flexible compression release device (202) Hinge (203) fastening connection. The unlocking rotation device (101) further includes: a male hinge (204) and a rotating shaft (208); the male hinge (204) is fastened to the female hinge (203) through the rotating shaft (208). The present invention has the advantages of compact overall structure, small folding envelope, light weight, small unlocking impact and reusable characteristics.

Description

Two-dimensional turntable locking and unlocking device for spacecraft technical field The present invention relates to the technical field of spacecraft, specifically, to a kind of two-dimensional turntable locking and Unlock the device. Background technique [0002] With the development of aerospace technology, spacecraft have higher and higher requirements for the antenna load capacity, and many optical loads are required. For example, a precise pointing function is required to realize the pointing observation of the ground. Therefore, many loads need to be installed on the turntable. Rotation of the stage achieves the orientation of the load. The rotational freedom of the turntable is released, although the motor itself has a little holding force moment, but this moment is not enough to overcome the mechanical conditions of the active segment of the satellite spacecraft, so an additional unlocking device is required During the launch phase, the turntable is lock...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional unlocking device is a pyrotechnic pin puller or a pyrotechnic unlocking device. The use of a pyrotechnic unlocking device can effectively achieve locking and unlocking, but its disadvantages are becoming more and more obvious. The pyrotechnic device can only be used once, and the , The storage process is more complicated, and the explosive impact generated by the gunpowder when unlocking is large

These shortcomings make it increasingly unable to adapt to today's low-cost, fast-paced launch requirements. The unlocking impact generated by the explosion also poses potential risks to the delicate optical load. In the past, there have been many cases of load damage caused by excessive explosion impact in spacecraft. event

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