Impact test bed

Abstract

The invention relates to an impact test bed, which comprises a base, an impact fixing seat fixed on the base, a waveform generator arranged in a mounting groove on the base and the impact fixing seat, sliding rods inserted and fixed in the impact fixing seat, a working table connected with the sliding rods, driving devices for driving the working table to move vertically and a power supply device, wherein the mounting groove is together formed by a first cavity arranged in the base and a second cavity arranged in the impact fixing seat. The whole impact test bed has a vertical structure, various kinds of waveform generators can be placed through arranging the mounting groove in the device, the position of the waveform generator can be adjusted through the adjustment seat, and small-acceleration and large-pulse width impact test can be carried out on small and medium specimen. The impact test bed is simple, low in cost, convenient in operation and small in occupied area.

Description

technical field [0001] The invention relates to an impact test stand. Background technique [0002] Environmental mechanical test-impact test is mainly used to simulate the mechanical impact environment of aerospace products during landing and return capsule recovery, so as to determine the adaptability of the product to various impact environments. Through such an impact test, the integrity of a product structure and the rationality of the working performance parameters can be assessed, providing a reasonable basis for assessing the quality of the product. It is usually used in the impact test of the drop impact test of aerospace instrumentation and electrical products, aviation lifesaving products. [0003] Currently commonly used impact test benches can only do tests with typical standard pulse widths. Small acceleration and large pulse width models, there are rocket sled impact test machines erected in the field using locomotive tracks; there are also valve-controlled ...

AI Technical Summary

Problems solved by technology

[0005] 1) The rocket sled type impact testing machine erected in the field is generally suitable for large-scale test pieces with large pulse width and large acceleration. The disadvantages of this kind of test equipment are long construction period, high cost of use and high maintenance

[0006] 2) Although the short-orbit valve-controlled damping model can perform simulation tests on medium and large specimens, the test equipment is time-consuming and laborious, and the test adjustment is quite difficult

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