Connecting and separating device based on memory alloy wire driving
A technology for connecting and separating devices and memory alloy wires, which is applied in the aerospace field, can solve problems such as easy generation of redundant substances or polluted gases, poor safety of pyrotechnic devices, and non-repeatable detection, so as to reduce impact, facilitate repeated use, and ensure The effect of reliable separation
Active Publication Date: 2020-07-17
HARBIN INST OF TECH
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The invention provides a connecting and separating device based on memory alloy wire driving, which comprises a driving end and a driven end, wherein the driving end comprises a shell, an outer sleeve, a fixed sheet, a compression spring, a rotary sleeve, a base, a memory alloy wire, a guide wheel, a lock pin, a limiting sleeve I and a limiting sleeve II, and the driven end comprises a screw rod,a loading nut, a separating piece and an adapter piece; the upper end of the screw rod is a threaded section matched with the loading nut, and the lower end of the screw rod is provided with multiplelayers of inclined bulges; the multiple layers of inclined bulges extend into the upper part of an accommodating space formed by the limiting sleeve I and the limiting sleeve II; when the memory alloywire is powered on, the memory alloy wire is shortened, the base and the lock pin move upwards, the lock pin relieves limiting of the lower ends of the limiting sleeve I and the limiting sleeve II, the two limiting sleeves rotate simultaneously, the lower portions of the limiting sleeve I and the limiting sleeve II are folded, the upper portions of the limiting sleeve I and the limiting sleeve IIare opened and separated from the screw rod, and the driving end and the driven end are separated. The device realizes rapid separation, and has the advantages of no impact, energy conservation, environmental protection, small size, high reliability and reusability.
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Technology Topic
Screw threadEnergy conservation
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