Launch vehicle, pyrotechnic cutting cable protection cover and its components

Abstract

This application relates to the field of aerospace technology, and in particular to a launch vehicle, a pyrotechnic cutting cable protective cover and its components, wherein the pyrotechnic cutting cable protective cover includes: four cover segments, and the extension direction of the end surface of each cover segment is The extension direction is the same as one diameter A-A of the pyrotechnic cutting cable protective cover; wherein, the two cover sections are arranged symmetrically with the other diameter B-B of the pyrotechnic cutting cable protective cover, and the diameter B-B is the same as the diameter A-A is vertical; the other two cover segments are respectively inserted into the gap between the two cover segments symmetrically arranged with the diameter B-B as the axis of symmetry; a gap with a certain distance is formed between the end faces of two adjacent cover segments , and there is a certain overlap between the inner surface of one cover segment and the outer surface of the other adjacent cover segment. The protective cover for pyrotechnic cutting cables provided by the present application can reduce the requirement for cabin space for installing the protective cover for pyrotechnic cutting cables.

Description

technical field [0001] The present application relates to the field of aerospace technology, in particular to a launch vehicle, a pyrotechnic cutting cable protection cover and components thereof. Background technique [0002] When the multi-stage booster vehicle is separated, the cabin section will be cut off with a pyrotechnic cutting cable to realize the unlocking and separation of the cabin section. In the prior art, such as figure 1 As shown, the pyrotechnic cutting cord 120 is arranged circumferentially along the inner wall of the cabin section 130 , and there are two initiators 140 on the pyrotechnic cutting cord 120 at a relative 180°, so as to ignite the pyrotechnic cutting cord 120 through the detonator 140 . During the cutting process of the pyrotechnic cutting cable 120, the impact force generated will impact the pyrotechnic cutting cable 120 fixed on the inner wall of the cabin section 130; . [0003] Based on this, in the prior art, in order to fix the pyrot...

AI Technical Summary

Problems solved by technology

However, in order to prevent the blasting airflow and cabin fragments of the pyrotechnic cutting cable 120 from leaking from the gap, the gap d is generally small, so the ability of the pyrotechnic cutting cable protective cover 110 to be adjustable around the axial direction is also weak.

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