Drop-hammer impact tension-compression integrated load test conversion device

Abstract

The invention discloses a drop-hammer impact tension-compression integrated load test conversion device, and belongs to the technical field of test equipment. The device mainly comprises a drop-hammer test loader, a tension-compression integrated loading mechanism and a base, wherein the tension-compression integrated loading mechanism comprises an impact platform, a connecting guide rod, a fixed platform and a sliding platform. A compression loading mechanism and a tension loading mechanism are connected integrally to form the conversion device through the connecting guide rod, and drop-hammer impact load can be converted into compression or tension load; the test device is simple in structure construction and processing and manufacturing and convenient to assemble and mount, and compression and tension load requirements can be met simultaneously; compression tests, tension tests and shearing tests of engineering structure materials can be realized by adjusting local devices in pressed and tensile test areas, and dynamic mechanical property during impact load of actual engineering structure material can be simulated and tested.

Description

technical field [0001] The invention belongs to the technical field of test equipment, and in particular relates to a drop hammer impact tension-compression integrated load test conversion device. Background technique [0002] At present, the equipment for testing the impact resistance of structures mainly includes the Hopkinson bar test device used for high-speed impacts and the drop-weight impact device used for medium-low speed impacts. A large number of examples in actual engineering belong to the medium and low speed impact process. For the test of such problems, the drop hammer impact device is a simple and reliable loading device. [0003] In the existing falling weight vertical impact conversion device, the falling weight falls vertically along the guide rail, and vertically impacts the specimen fixed on the test bench, so as to study the dynamic mechanical properties of the specimen under the impact load. However, due to the limitations of test conditions and equip...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the applicability of the existing drop weight vertical impact conversion device and its relatively complicated structure and force transmission mechanism, the present invention aims to provide a new type of load test conversion device integrated with drop weight impact tension and compression, which can realize compression and tension. The tensile testing machine is integrated, and the compression or tensile test is carried out under the action of the vertical impact load. At the same time, the structure of the device is simple, the force transmission mechanism is clear, the rigidity of the device itself is relatively large, and it is not easy to cause local or overall instability and damage. The processing and manufacturing are simple and convenient. Design and manufacture the test device, and be able to more realistically simulate the dynamic mechanical properties of compression, tension and shear of various materials in the actual structure under impact loads

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