Combined separation parachute opening mechanism

Abstract

The invention relates to a combined separation parachute opening mechanism, and belongs to the field of civil rocket dispenser bombs. In the separation parachute opening mechanism, the inner wall of an annular connecting table at the middle part of an inner cavity of a separation cylinder is in threaded connection with a stop ring; a separation push plate and a separation bullet are charged on thefront side, where the stop ring is fixed, of the separation cylinder; a stable parachute at the back end of the separation bullet is fixed with a front side plate surface of the separation push platethrough a shearing rope; the separation push plate and the stop ring are synchronously fixed through an explosion bolt and a rupture bolt; the front end of a limiting bolt penetrates through a limiting bolt passing hole in a ring surface of the stop ring, and is in threaded fixation with the separation push plate; the limiting bolt is positioned on the back side of the plate surface of the separation push plate with a mobile margin; a separation explosive box is fixed on the back side plate surface of the separation push plate; the back end of the separation cylinder is in threaded butt jointwith a back end projectile body; and the explosion bolt and a detonation circuit of the separation explosive box are connected with a delay fuse mounted on the back end projectile body through leads.The separation mechanism effectively guarantees the connecting strength in the rocket projectile flight process, and is high in separation reliability and controllable in parachute opening time.

Description

technical field [0001] The invention relates to a combined separation parachute mechanism, which belongs to the field of civilian rocket submunitions. Background technique [0002] Existing civilian rocket submunitions, such as fire extinguishing submunitions, need to be opened by a separation mechanism after the scheduled launch time and the broadcast bullets are pushed out. Traditional separation mechanisms generally use a single explosive bolt, cutting lock or shear pin combined with a power device. , Explosive bolts or cutting locks realize the unlocking of the projectile, and airbags or gunpowder gas power devices are used to realize the separation of the projectile. This structure or connection strength is low, or the impact of the separated body is relatively large, which puts forward higher requirements for the high overload resistance of the separated body. Require. In addition, in order to ensure that the falling point of the bullets in the rocket cluster is contr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the traditional rocket submunition separation mechanism, such as low connection strength, large impact of the separation body, and uncontrollable bullet opening time, etc., to provide a combined separation parachute mechanism

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