A vertical vibration test bench with small vibration source and large load that is convenient for loading and unloading

Abstract

The invention provides a small-vibration-source large-load vertical vibration experiment table convenient to assemble and disassemble. The small-vibration-source large-load vertical vibration experiment table is composed of 31 parts. After a large load or an experimental object bearing the large load is placed on the experiment table, the spring is compressed and converts gravitational potential energy of the load into elastic potential energy, and the spring bears the weight of the load. When the vibration exciter outputs force, the compression amount of the spring is reduced, and the outputforce of the vibration exciter and the elastic force of the spring jointly support loads. After the maximum output of the vibration exciter is determined, the sizes of the springs are changed so as tochange the stiffness coefficients of the springs, and under the same excitation, the elongation changes of the springs with different stiffness coefficients are different, so that the vibration amplitude can be adjusted by changing the sizes of the springs after the vibration exciter is determined. The single weight of all parts in the experiment table is small, the parts can be assembled and disassembled without carrying tools, and the weight of the load is easy to adjust. The experiment table is high in universality, simple in structure, easy to machine and low in cost.

Description

Technical field [0001] The present invention provides a convenient handling of large loads of small local oscillator vertical vibration test table, it particularly relates to a vertical vibration test subjects receiving large load or a large load, and easy loading and unloading bench, the load is adjustable and may be only a small experiments in the case of the vibration source. Background technique [0002] Currently vertical vibration test of the local oscillator is often used exciter or shaker, shaking table can provide large vibration source, but a large load on the vibration test shaker high performance requirements, and the vibration table expensive. Exciter lower price and easy to operate, but can not bear the weight of a large load, vibration test can not be a large load. Inventive content [0003] For the above problems, the present invention provides a small local oscillator heavy load station for the vertical vibration test of easy handling, it can use a small vibrati...

AI Technical Summary

Problems solved by technology

[0002] At present, the vibration source of the vertical vibration experiment often adopts a vibration table or an exciter. The vibration table can provide a large vibration source, but the vibration experiment with a large load has higher requirements on the performance of the vibration table, and the price of the vibration table is high.

The exciter is cheap and easy to operate, but it cannot bear the weight of a large load and cannot carry out vibration experiments with a large load

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