Horizontal impact test bench driving device and bidirectional multifunctional horizontal impact test bench

Abstract

The invention discloses a drive device of a horizontal impacting test bed and a bi-directional multifunctional horizontal impacting test bed. The drive device comprises more than two groups of expansion cylinders, wherein any one group of expansion cylinders comprise a first cylinder body and a second cylinder body which are mutually matched and fixedly connected with a work bench and a base of the horizontal impacting test bed respectively; the work bench is arranged on one guide track and can move along the guide track; and the test bed comprises the work bench, the base, the drive device and an impacting seat. The drive device adopts low-pressure gas as power, and is simple in structure, safe, reliable, large in drive push force and short in accelerating process; only a shorter sliding track is required, so that the construction cost is small, and small area is occupied, an impacting overload value can be conveniently controlled by adjusting air pressure, the accuracy and the repeatability of an impacting wave form are high, and the testing efficiency is improved greatly; and simultaneously, the test bed can complete classic impacting and response spectra on the same bed body, so that the small-load horizontal impacting test requirements can be sufficiently met.

Description

technical field [0001] The invention relates to a horizontal impact test bench, in particular to a driving device for the horizontal impact testing bench and a bidirectional multifunctional horizontal impact testing bench using the driving device. Background technique [0002] The impact test bench is mainly used for the mechanical environment test of the product. It can simulate the actual impact pulse and impact energy, and simulate the non-repetitive impact that the product may be expected to suffer during use, loading and unloading and transportation, so as to determine the impact of the product on various impact environments. adaptability. [0003] Among the current shock test specifications, one is to specify the shock motion (such as half-sine pulse, rear-peak sawtooth pulse, etc.) and its tolerance requirements. The other is the shock response spectrum specification, which describes the damage caused by shock motion to the system. The object of concern is not the sh...

AI Technical Summary

Problems solved by technology

The tilting impact method uses the gravity component as the driving force, but since the tilt angle cannot be too large, the gravity component generated by tilting is small, and a long slideway is required to produce the required impact initial velocity

[0006] At present, the shock response spectrum testing machine generally adopts the pendulum type shock response spectrum testing machine. This kind of shock response spectrum testing machine has the disadvantages of complex structure, high cost, large space occupation, and difficult control of shock excitation.

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