Short-stroke half-sine wave impact test bench

Abstract

The invention provides a short-stroke half-sine wave impact test bench, and relates to the technical field of impact collision tests. The short-stroke half-sine wave impact test bench comprises a base, an air source, a support installed at the top of the base and an air path control system connected between the support and the air source. A plurality of groups of shock pads are mounted between thebase and the support; a double-pressure air cylinder is fixedly connected to the center of the support, an air cylinder rod is installed in the center of the double-pressure air cylinder, and a working table is installed at the top end of the air cylinder rod. A waveform generator is installed in the center of the inner surface of the bottom of the support. By designing a simple damping system, the impact force transmitted to the ground by the impact of the workbench can be greatly reduced, and the impact waveform is smoother, so that the experimental data is more accurate, and a higher descending speed can be obtained under the same stroke of the cylinder; and when descending to a certain height, the electromagnetic valve acts, the table top and the air cylinder rod return to the free-fall motion again, the working efficiency is greatly improved, and the test bench is worthy of wide popularization.

Description

technical field [0001] The invention relates to the technical field of shock and collision tests, in particular to a short-stroke half-sine wave shock test bench. Background technique [0002] Impact crash test system The impact crash test bench is used in the laboratory to simulate the ability of the product to withstand impact damage in actual use, so as to evaluate the impact resistance of the product structure, and optimize the structural strength of the product through the test data, according to the correct Evaluating the impact resistance of the product can effectively improve the reliability of the product. The laboratory test is used to simulate the impact damage that the packaged transport may receive during transportation, loading and unloading, so as to evaluate the impact of the packaged product during transportation. When being impacted, whether the cushioning and vibration reduction of the packaging can achieve the protection ability of the product. The impact...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a short-stroke half-sine wave impact test bench, which solves certain defects in the structural design of the existing short-stroke half-sine wave impact test. The design is too simple, resulting in the reverse shock wave generated during the impact collision will be transmitted to the ground, resulting in a large amplitude of the entire shock wave, resulting in the problem of inaccurate experimental data

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