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Locking-unlocking device driven by two-stage redundancy

An unlocking device and redundant technology, applied in the docking device of aerospace vehicles, etc., can solve the problems of unlocking reliability defects, heavy burden on memory alloy drive parts, etc., and achieve the effect of compact structure, convenient reset operation, and reliable unlocking

Inactive Publication Date: 2010-12-15
郑钢铁 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The memory alloy driving part has a large burden, and there are certain defects in the reliability of unlocking

Method used

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  • Locking-unlocking device driven by two-stage redundancy
  • Locking-unlocking device driven by two-stage redundancy
  • Locking-unlocking device driven by two-stage redundancy

Examples

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Embodiment Construction

[0036] The two-stage drive height locking and unlocking device of the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0037] The invention proposes a two-stage redundant drive locking and unlocking device. A cylindrical shell with open ends, a shell base and a shell top cover respectively connected to both ends of the shell, and the centers of the shell base and the shell top cover are all provided with through holes; the points arranged on the inner axis of the shell The flap nut is set on the ferrule on the outer periphery of the split nut, and one end of the ferrule is closed; it is characterized in that it also includes a primary driver, a primary stopper, a switch and a secondary driver arranged in the housing;

[0038] The primary driver includes a compression spring, a driving block, the driving block is a disc with a round rod in the center, and the round rod penetrates into the compression spring;

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Abstract

The invention relates to a locking-unlocking device driven by two-stage redundancy, belonging to the technical field of locking and unlocking between two structures. The device is characterized by comprising a cylindrical shell with two open ends, a shell base, a shell top cover, a split nut, a ferrule 11, a primary drive, a primary stop dog, a switching device and a secondary drive, wherein the shell base and the shell top cover are respectively connected with the two ends of the shell, and through holes are respectively arranged in the centers of the shell base and the shell top cover; the split nut is arranged on the inner axial line of the shell, the ferrule is sleeved at the periphery of the split nut, and one end of the collar is closed; and the primary drive, the primary stopdog, the switching device and the secondary drive are arranged in the shell. The device has the advantages of reliable locking and unlocking, little unlocking impact force, strong bearing capacity, fast resetting operation, compact structure, small volume, diversified installation interfaces, and the like.

Description

technical field [0001] The invention belongs to the technical field of locking and unlocking between two structures, in particular to a device capable of fastening two structures under specified working conditions and unlocking them under specified conditions. Background technique [0002] Some components and structures on the spacecraft, such as the cabin, are connected on the ground and during launch, and need to be separated after entering orbit to realize their functions; the solar panels are under pressure due to space constraints and vibration reduction requirements in the launch state. In the tightly folded state, the locking device is released after reaching the track, and the sailboard enters the working state after unfolding. Another example is a large-scale deployable antenna in space, etc., all need devices capable of realizing locking and unlocking functions. When carrying high-precision and high-sensitivity instruments on the satellite, it is necessary to inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/64
Inventor 梁鲁郑钢铁关新王光远
Owner 郑钢铁
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