A flexible base for preventing back-absorption after ejection

Abstract

The invention relates to a flexible base preventing back sucking during a catapulting aftereffect stage. The flexible base preventing back sucking during the catapulting aftereffect stage comprises a base body and a protective net plate; the base body comprises a bottom plate and peripheral walls fixedly connected with the periphery of the bottom plate; a first flange is arranged at the upper end of the peripheral wall; a second flange of a metal material is arranged on the lower side of the first flange; a plurality of evenly distributed first installing holes are formed in the first flange in the peripheral direction; the second flange is provided with a plurality of second installing holes corresponding to the first installing holes in the first flange in the peripheral direction; the protective net plate is provided with a plurality of ventilating holes; and the protective net plate is arranged on the upper side of the base body and is made to be provided with a plurality of third installing holes corresponding to the first installing holes in the first flange in the peripheral direction. The flexible base preventing back sucking during the catapulting aftereffect stage has the beneficial effects of being simple in structure, convenient to use, safe and reliable, and effectively solves the problem that impacting loads generated because of back sucking of the flexible base during the catapulting aftereffect stage endanger equipment in a launch canister.

Description

technical field [0001] The invention relates to a missile launching device, in particular to a flexible base for transmitting ejection loads. Background technique [0002] In the military field, as the key equipment of the cold launch device, the missile launching tube usually needs to be provided with a flexible base at the rear to transfer the recoil (ejection) load generated by the ejection gas pressure in the launching tube to the ground and reduce the impact on the launching vehicle . In order to adapt to the uneven working conditions of the ground, the flexible base needs to leave a certain gap with the ground after installation. Under the action of the air pressure generated by the missile launch, the flexible base will contact the ground through its own flexible deformation to realize the ejection load transfer. However, in practical applications, due to the aftereffect of ejection, the pressure inside the launch tube will be lower than the pressure outside the tub...

AI Technical Summary

Problems solved by technology

However, in practical applications, due to the aftereffect of ejection, the pressure inside the launch tube will be lower than the pressure outside the tube and will attenuate according to the sine wave

However, under the action of the pressure difference inside and outside the launch tube, the flexible base will produce a large deformation in the direction of the launch tube and generate an impact load. Once it contacts the equipment inside the launch tube, it will cause damage, thus endangering the internal equipment. safe to use

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