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A split nut type compression release device actuated by a hot knife

A split nut and release device technology, applied in the aerospace field, can solve the problems of non-repeatability, serious pollution, poor safety, etc., and achieve the effects of low manufacturing cost, less material and large bearing capacity

Active Publication Date: 2021-12-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most mature pyrotechnic compression release device currently used mainly uses the energy generated by the combustion or explosion of gunpowder to realize the release function, and its shortcomings such as non-repeatability, poor safety, large impact, and serious pollution are very prominent.

Method used

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  • A split nut type compression release device actuated by a hot knife
  • A split nut type compression release device actuated by a hot knife
  • A split nut type compression release device actuated by a hot knife

Examples

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] Such as Figure 1-Figure 5 As shown, a hot-knife-actuated split-nut type compression release device includes two hot knives 2, two heat-transfer sleeves 3, and two-lobe Type split nut 4, rope harness 5, bearing bolt 8, wave elastic washer 9 and spherical washer 10, described two-lobed split nut 4 is arranged at the center of the space surrounded by top cover 1 and base 7, The two nut sections of the two-petal split nut 4 are merged together to form a complete thread, and the two heat transfer sleeves 3 are symmetrically fixed on the two petals of the two-petal split nut 4, and a The hot knife 2, the rope harness 5 is wound on the outer surface of the two-lobed split nut 4 and th...

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Abstract

The invention provides a hot-knife-actuated split nut-type compression release device, which includes two hot knives, two heat transfer sleeves, and two-lobed split nuts arranged in the space surrounded by a top cover and a base. Nuts, rope harnesses, load-bearing bolts, wave elastic washers and spherical washers, the two-part split nut is set at the center of the space surrounded by the top cover and the base, and two heat transfer sleeves are symmetrically fixed on the two-part split nut On the two petals of the heat transfer sleeve, a hot knife is set in each heat transfer sleeve, and the rope harness is wound on the outer surface of the two-petal split nut and the outer surface of the heat transfer sleeve, and the two-petal split nut and the outer surface of the heat transfer sleeve are locked The heat transfer sleeve is tightly bound, and the spherical washer and the wave elastic washer are arranged in the area enclosed by the lower part of the two-petal split nut and the base, and the load-bearing bolts pass through the base, the wave elastic washer and the spherical washer in turn and connect with the two-petal split nut. Flap nut connection. The invention has reliable locking and safe release, and has the characteristics of low impact, no pollution, low energy consumption, large load capacity and miniaturization.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a split nut type pressing and releasing device actuated by a hot knife. Background technique [0002] In view of the impact of shock and vibration during the launch of some spacecraft, it is necessary to use a reliable locking device to fix the space science payload to ensure that the dynamic response of the system is under control; in-orbit release. The most mature pyrotechnic compression release device currently used mainly uses the energy generated by gunpowder combustion or explosion to realize the release function, and its shortcomings such as non-repeatability, poor safety, large impact, and serious pollution are very prominent. For example, explosive bolts, pyrotechnic nuts, cutters, pin pullers, pyrotechnic locks, etc., often have a large impact, and some even reach 3000-20000g, which is fatal to the load and separation platform. Space tests have very str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/64
CPCB64G1/645
Inventor 杨飞岳洪浩杨逸斐
Owner HARBIN INST OF TECH
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