A load-independent three-dimensional pendulum anti-vibration device

Abstract

A load-independent three-dimensional pendulum anti-vibration device, which includes a cover plate, an upper and lower limit plate and a bottom plate from top to bottom. The bottom surface of the cover plate is provided with a spherical crown surface; A vertical damping module is installed at the position, and the vertical damping module is fixedly connected with the bottom plate to form a fixed assembly; the lower limit plate is provided with a vertical short column, which is fixedly connected with the cover plate to form a mobile assembly; the load is placed on the cover plate Above, when subjected to vibration, the fixed assembly remains stationary relative to the bottom support surface, the mobile assembly is displaced relative to the fixed assembly, and the universal roller moves freely in the original position and returns to the original equilibrium position by the action of the gravity field. The invention is simple in structure, easy to use, and reliable in effect. The dynamic characteristics of the device are only related to the structural size of the device itself, and can meet the shockproof / vibration protection requirements under any load-bearing conditions. Free translation in any direction in the plane can prevent vertical detachment. Shock protection for high value items.

Description

technical field [0001] The invention relates to the field of anti-vibration / vibration protection of high-value items such as cultural relics collections, precision instruments and important items, and specifically relates to a load-independent three-dimensional pendulum anti-vibration device, which is suitable for horizontal two-way and vertical shock / vibration isolation under various loads . Background technique [0002] my country is located at the junction of two major geological tectonic plates, frequent earthquakes bring great harm, and people's lives and property safety are threatened. At present, my country's earthquake fortification design aims to minimize casualties caused by earthquakes. There are few considerations for the safety of items in buildings, and indoor items are seriously damaged during earthquakes. Safety and security is of great significance and is imminent. [0003] Museums are the carriers that bring cultural relics and other collections to life du...

AI Technical Summary

Problems solved by technology

[0004] For the existing anti-shock / vibration devices, the dynamic characteristics are related to the weight (carrying capacity) of the loaded items, and the stiffness parameters of the anti-shock / vibration devices are limited. Especially for high-value items with small mass, it is difficult to guarantee and improve the anti-vibration efficiency; The high-value items are also affected by the quality of the loaded items. The size and stiffness parameters of the existing shock / vibration device stiffness components are too large, which affects the overall device effect and is not convenient for item storage and display.

Images