A Modular Curved Track Isolation Device with Modifiable Damping

Abstract

The invention discloses a modularized and variable damping curved track shock isolation device, which belongs to the technical field of shock absorption and shock isolation. The device includes a base plate, a linear slide rail, a curved track, a lifting slider assembly, a screw damping mechanism, rollers and a connecting frame; the linear slide rail and the curved track are fixed on the surface of the base plate symmetrically, and the inner and outer sides of the connecting frame are respectively installed with lifting The slider assembly and rollers, the lifting slider assembly and the rollers are respectively matched with the linear slide rail and the curved track to realize the installation between the substrate and the connecting frame; the curved track provides the restoring force for the connecting frame to return to the initial position; the lifting slider assembly and the linear After the slide rail is matched, it provides guidance and lateral support for the movement of the connection frame, and the lifting slider assembly can adapt to the height change of the connection frame during horizontal movement; the screw damping mechanism is installed between the base plate and the connection frame. The invention reduces processing and installation precision, and has good horizontal decoupling ability, self-resetting function and damping adjustment ability.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and shock isolation, and in particular relates to a modularly assembled variable damping shock isolation device. Background technique [0002] Most of the cultural relics on display in the museum are in a floating state and are easily damaged by earthquakes. At present, in addition to traditional anti-seismic measures such as propping, sticking, clamping, and tying, museums at home and abroad have begun to promote the use of cultural relics isolation devices to protect floating cultural relics. This type of device can separate cultural relics from display cabinets or buildings to reduce the vibration intensity of cultural relics and achieve the purpose of avoiding damage. [0003] Among the seismic isolation devices that are widely used in museums, in addition to the linear slide rail type, there is also a seismic isolation device involving an arc surface friction system. Typical applica...

AI Technical Summary

Problems solved by technology

Usually, the damping force of the device is provided by the friction between the shaft and the roller or between the roller and the track, which requires high processing and installation accuracy and the damping is not easy to control; in addition, due to the randomness of the seismic wave propagation direction, the orthogonal There is a problem of horizontal decoupling on the track. The side of the roller often uses the rim to resist the lateral force to prevent derailment, which makes it easy to get stuck during the movement and affects the vibration isolation performance.

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