Bullet firing device of Hopkinson pressure bar

Abstract

The invention relates to a firing device of a Hopkinson pressure bar, and particularly relates to a bullet firing device of a Hopkinson pressure bar. The bullet firing device of the Hopkinson pressure bar comprises a support table (11), a firing cavity (12) fixed on the support table (11), a firing tube (13) connected with the firing cavity and a base (15) for bearing the support table; the support table (11) is provided with a slide support (14) for supporting the firing tube (13) along the length direction; one end of the firing tube (13) close to the firing cavity (12) is provided with a bullet filling opening (131) which is provided with a sealing door (132). Compared with the traditional device, the bullet firing device of the Hopkinson pressure bar, which is provided by the invention, has the advantages that bullets can be filled into the tail end of the firing tube from the bullet filling opening instead of being from the tube opening of the firing tube and are then pushed into the firing tube by iron wires, so that the bullets are extremely convenient to fill, and the using efficiency is improved.

Description

technical field [0001] The invention relates to a launching device for a Hopkinson pressure rod, in particular to a bullet launching device for a Hopkinson pressure rod. Background technique [0002] Most materials show a certain degree of loading rate or strain rate sensitivity in terms of mechanical properties such as strength, and the strain rate effect of material mechanical properties caused by high-amplitude short-duration pulses and loads, for structures resistant to dynamic loads Design and analysis are very important. These dynamic loads come from many military and civilian events such as conventional weapon penetration and explosion, accidental explosion and high-speed impact. The Hopkinson rod is recognized as the most commonly used and most effective research pulse dynamic load. Experimental equipment for the mechanical properties of materials, it is not only suitable for compression tests, but also successfully conducts tension, shear and friction and wear tests...

AI Technical Summary

Problems solved by technology

When using the Hopkinson pressure rod for experiments, it is necessary to load bullets in its launch tube, and then use high-pressure gas to release its pressure instantaneously to shoot out the bullets and impact the experimental device. The traditional Hopkinson pressure rod is loading bullets The time is filled from the nozzle of the launch tube. Since the launch tube is relatively long, it is necessary to use iron wire to push the bullet into the end of the launch tube. It is very troublesome to operate and wastes time.

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