Rapid separation device based on memory alloy wire driving

Abstract

The invention provides a rapid separation device based on memory alloy wire driving. The device comprises a driven end arranged on a butt joint star and a driving end arranged on a driving star. The driven end comprises an arc-shaped gasket, and a seam allowance is arranged on the arc-shaped gasket in a circumferential direction. The driving end comprises a shell, a locking rod, a hook, a loadingnut, a shifting fork, a bracket, a bearing ring, a memory alloy wire and an inclined block; the bottom of the bearing ring is supported on a boss of a bead cover; the top of the bearing ring is in contact with the bottom end of the inclined block arranged on the bracket; and the top end of the inclined block makes contact with the lower surface of the hook. When the memory alloy wire is powered on, the memory alloy wire is shortened to drive the bearing ring to rotate, constraint of the hook on the shifting fork is relieved through downward movement of the inclined block making contact with the top of the bearing ring, then constraint on the locking rod is relieved, so that separation and unlocking of the driving star and the butt-joint star are achieved. The separation device disclosed bythe invention realizes rapid separation, and is low in impact, energy-saving, environment-friendly, small in size, high in reliability and reusable.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a quick separation device driven by a memory alloy wire. Background technique [0002] The connection and separation release technology is a key technology in the field of aviation weapons and space vehicle technology. The traditional fast-response connection and separation devices usually use pyrotechnic devices. The pyrotechnic devices have poor safety, large load impact, cannot be reused, and detonate. Afterwards, problems such as excess or polluted gas are easily generated. With the advancement of national defense aviation weapons and equipment, aviation lunar exploration projects, and future space station construction, the characteristics of low impact or even no impact, energy saving and environmental protection, small size, high reliability, and reusability have become the new development direction of connection and separation technology. It is a technical ...

AI Technical Summary

Problems solved by technology

[0002] The connection and separation release technology is a key technology in the field of aviation weapons and space vehicle technology. The traditional fast-response connection and separation devices usually use pyrotechnic devices. The pyrotechnic devices have poor safety, large load impact, cannot be reused, and detonate. Afterwards, it is easy to produce redundant substances or polluting gases and other problems

Images