Variable stiffness anti-impact steel wire rope vibration isolator

Abstract

The invention discloses a variable stiffness anti-impact steel wire rope vibration isolator and relates to the field of impact vibration isolation of electronic equipment. The variable stiffness anti-impact steel wire rope vibration isolator comprises a lower bottom plate (1), an upper bottom plate (2), a steel wire rope (3) and n groups of variable stiffness modules (G), the steel wire rope (3) is wound outside the upper bottom plate (2) and the lower bottom plate (1), and the n groups of the variable stiffness modules (G) are formed by anti-compression spiral springs (4) and rubber guide columns (5). The height h2 of the anti-compression spiral springs (4) is smaller than the effective height H of the variable stiffness anti-impact steel wire rope vibration isolator. The height h3 of the rubber guide columns (5) is greater than one half of the effective height H of the variable stiffness anti-impact steel wire rope vibration isolator. The variable stiffness anti-impact steel wire rope vibration isolator is simple and compact in structure, and capable of achieving variable stiffness function and variable inherent frequency characteristic in the process of impact vibration isolation. Meanwhile, the variable stiffness anti-impact steel wire rope vibration isolator has wide application prospect on an occasion with high large impact requirement.

Description

technical field [0001] The invention relates to the field of shock and vibration isolation of electronic equipment, in particular to a vibration isolator of a steel wire rope with variable stiffness and shock resistance. Background technique [0002] The vibration isolation of electronic equipment in engineering is usually divided into vibration isolation and shock vibration isolation. Vibration vibration isolation has lower requirements on vibration isolators. Shock vibration isolation often becomes very bad due to the large amplitude of pulse acceleration and long pulse time. For Vibration isolators have high performance requirements. Whether it is vibration isolation or shock isolation, wire rope vibration isolators are the most used in engineering. [0003] Existing steel wire rope vibration isolators can be well used for vibration isolation and small shock vibration isolation of electronic equipment, but the vibration isolator is often damaged in the case of large shoc...

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Problems solved by technology

[0004] The object of the present invention is: in order to overcome the problem that the existing steel wire rope vibration isolator cannot be applied to large impact vibration isolation, the presen

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