Ultrahigh-speed tensile testing machine driven by rocket engines

Abstract

The invention discloses an ultrahigh-speed tensile testing machine driven by rocket engines. The ultrahigh-speed tensile testing machine comprises a workbench, a stretching device, a driving device, a reduction gear, and a guide slide rail, wherein the stretching device comprises a first clamp, a second clamp and a sliding plate; the driving device comprises the rocket engines; the guide slide rail is fixed at the upper end of the workbench; the first clamp is fixed at one end of the upper end of the workbench, and the reduction gear is fixed at the other end of the upper end of the workbench; the second clamp is fixed on the sliding plate and used for clamping the other end of a tested sample, and a connecting line between the first clamp and the second clamp is parallel to a length direction of the guide slide rail; the sliding plate slides linearly on the guide slide rail; and the rocket engines are symmetrically fixed at two ends of the sliding plate. The tensile testing machine provided by the invention can implement a short-time ultrahigh-speed tensile test for a material, can adjust the stretching stroke at the same time, and is suitable for performance analysis of short-time ultrahigh-speed loading of a material.

Description

technical field [0001] The invention belongs to material tensile testing equipment, in particular to a super high-speed tensile testing machine driven by a rocket engine. Background technique [0002] Tensile testing machine is a kind of tensile fracture test for long samples such as steel cables, chains and hoisting belts of various materials. It is widely used in metal products, building structures, ships, military industries and other fields. For materials such as flexible ropes and steel cables, such as bridge suspension cables and elevator traction wire ropes, in practical applications, they may be loaded with high-intensity tensile loads in a short period of time, which has a certain impact on the tensile strength of the materials. Requirements, this requires the determination of the tensile limit of the material. Therefore, a testing machine for ultra-high-speed tensile testing of materials is invented. By applying ultra-high-speed tensile force to materials in a sho...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an ultra-high-speed tensile testing machine driven by a rocket engine, so as to solve the problem of slow loading speed caused by the small power of the motor of the current tensile testing machine, and the limitation of the loading stroke and the inability to test the relatively high elongation rate. The problem of high material; the tensile testing machine of the present invention is driven by the rocket engine, realizes the short-term ultra-high-speed tensile test of the material, and can adjust the stretching stroke at the same time, and is suitable for the performance of the short-term ultra-high-speed loading of the material analyze

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