A wire separation ring with conditional contact load

Abstract

The utility model relates to a conditional contact bearing linear separation ring, which belongs to the technical field of aerospace. It includes a separation plate, an internal and external contact load-bearing module, a rigid block, an energy-gathering cutting, and a skin stringer, and the separation plate, the internal and external contact load-bearing module and the skin stringer are connected by bolts. There are circumferential separation and weakening grooves on the outer surface of the separation plate; two outer contact bearing modules are fixed on the outer surface of the separation plate and are symmetrically installed on both sides of the separation and weakening groove; two inner contact bearing modules are fixed on the inner surface of the separation plate and are installed symmetrically The rigid block is installed in the space formed by the assembly grooves of the two blocks, and the energy-gathering cutting cable is installed in the rigid block, and the energy-gathering cutting cable is aligned with the separation weakening groove; the skin stringer is fixed on the outer surface of the separation plate. The invention changes the bearing mode of the linear separation ring under axial pressure load by adding contact load-bearing modules on both sides of the weakening groove of the separation plate, and effectively improves the axial load bearing capacity of the structure on the premise of ensuring the reliability of the horizontal line separation of the linear separation ring ability.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and relates to a conditional contact bearing wire type separation ring. Background technique [0002] For heavy-duty launch vehicles and missiles, wire-type separation devices, namely wire-type separation rings, are mostly used for the connection and separation of the interstage sections. In normal service environment, two adjacent stages of a rocket or missile are connected by a line separation ring, and the separation plate in it bears the axial tension or axial compression load. When the separation device is working, the pyrotechnic expansion tube or energy-gathering detonating cord will cut off the separation plate in the linear separation ring along the weakening groove to achieve the purpose of inter-stage separation. Because the separation plate has the active feature defect of the weakened groove, the axial bearing capacity of the separation plate is greatly reduced. Especially under...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor axial pressure bearing capacity of the separation ring in the prior art, the present invention proposes a conditional contact bearing linear separation ring without changing the thickness of the separation plate and the charge amount of the pyrotechnic device. The contact bearing modules are added on both sides of the weakening groove of the separation plate, and the contact load is used to resist the additional bending moment, which changes the bearing mode of the line separation ring under axial pressure load, so that on the premise of ensuring the reliability of the horizontal line separation of the line separation ring, Effectively improve the axial bearing capacity of the structure

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