Anti-recoil device for drop hammer test system

Abstract

The invention discloses an anti-recoil device for a dropping hammer experiment system. The device comprises a bunker, an upper transmission joint, a lower transmission joint, a spring and a sleeve. The bunker is a barrel body with a downward opening, the barrel body is composed of a surrounding cylinder and a bottom cover, the bottom cover is provided with a center round through hole, and an annular groove is machined in the upper surface of the bottom cover; the spring and the sleeve are disposed in the annular groove, and the spring is a cylindrical spiral compressed spring with a round section; the upper transmission joint is installed at the upper end of the spring and is a cylinder, the lower surface of the upper transmission joint is provided with an annular groove and a center round step boss, and the step boss is composed of a large diameter part and a small diameter part; the lower end of the upper transmission joint is connected with the lower transmission joint, the lower transmission joint is a cylinder with a center round boss, a center threaded hole is machined in the upper surface of the boss of the lower transmission joint, and the step face of the lower transmission joint makes contact with the bottom cover of the bunker. By means of the anti-recoil device, damage to a dropping hammer loading system caused by recoil force generated by accidental ignition of gun propellant or propellant in an experiment sample bomb can be effectively prevented.

Description

technical field [0001] The invention belongs to the technical field of laboratory experimental devices for energetic materials, and relates to an anti-recoil device for preventing explosive gas from recoiling an object, in particular to an anti-recoil device suitable for a drop hammer loading system. Background technique [0002] Energetic materials are subjected to inertial shock compression during launch and penetration, and the response of energetic materials is firstly a dynamic response, which then affects its ignition performance. Therefore, the dynamic mechanical response characteristics of energetic materials under shock compression conditions have been It has become one of the key issues concerned by the weapons development department. [0003] At present, the methods for evaluating the impact resistance of energetic materials at home and abroad mainly include live ammunition shooting experiments and laboratory simulation experiments. The former has disadvantages s...

AI Technical Summary

Problems solved by technology

This system is effective for the research on dynamic mechanical response of explosive charge, but when it is used in the study of dynamic mechanical response of propellant or propellant charge, there are great safety problems, because propellant or propellant charge After the ignition occurs under the action of impact compression load, the reaction product produces a very strong force in the opposite direction of the falling weight, and the recoil force acts on the weight, making the weight obtain a high rising speed, which is very easy to The entire loading system causes damage, so the existing system is difficult to apply to the dynamic mechanical response research of propellant or propellant charge

Images