A conversion device that can realize the drop weight tensile impact test

Abstract

The invention discloses a conversion device capable of realizing a drop hammer tensile impact test and belongs to drop hammer tensile impact test equipment in order to solve the problems that the conventional hydraulic servo universal tester cannot realize high speed loading and separated Hopkinson tension bar test data is instable. The conversion device comprises a fixed beam column framework and a force transmission beam column framework, wherein the fixed beam column framework comprises a pedestal, a column arranged at the top end of the pedestal and a cross beam fixed at the top end of the column; the force transmission beam column framework comprises a plurality of large round tubes fixed at the top end of the pedestal; a small round tube is arranged in each large round tube; the upper part of the small round tube is positioned outside the large round tube; the top end of the small round tube is provided with an upper beam; the lower end of the upper beam is connected with a force transmission column; and the lower end of the force transmission column is connected with a lower beam. The conversion device can realize tensile tests under different impact load actions by combination of a drop hammer tester, so that a loading situation of an actual structural member can be simulated really.

Description

technical field [0001] The invention relates to the field of drop weight tensile test equipment, specifically a conversion device capable of realizing a drop weight tensile impact test. The conversion device is mainly used in a drop weight laboratory to carry out impact resistance tensile tests, and can be used according to test or process requirements. Perform dynamic tensile tests on various engineering materials. Background technique [0002] At present, the equipment for tensile testing of building materials includes hydraulic servo universal testing machines and separate Hopkinson tie rods. Strain rates of member materials under common loads: 10 for traffic loads -6 ~10 -4 the s -1 , the earthquake is 10 -3 ~10 -1 the s -1 , piling is 10 -2 ~10 0 the s -1 , the car collision is 10 0 ~10 1 the s -1 , high-speed collisions such as explosions are 10 2 ~10 6 the s -1 . [0003] The hydraulic servo universal testing machine is used for testing under static or...

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the existing hydraulic servo universal testing machine cannot realize high-speed loading and the fixture of the separate Hopkinson tie rod has serious shortages, and the test data is unstable, the present invention aims to provide a conversion that can realize the drop weight tensile impact test. device, the conversion device combined with the drop weight testing machine can realize the tensile test under different impact loads, and can truly simulate the stress status of the actual structural components

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