A rotating friction damping shock absorbing support device

Abstract

A rotating frictional damping and shock absorbing bearing device, comprising a main body, the top surface and the bottom surface of the main body are respectively fixed with flat plates, and several parallel strip grooves are provided on the top surface of the upper flat plate and the bottom surface of the lower flat plate respectively. The grooves are respectively provided with screw rods, and the two sides of the bar-shaped grooves are respectively connected to the two ends of the corresponding screw rods through bearings. The two sides of the front and rear sides of each bar-shaped groove are respectively provided with slide grooves, and the inner sides of each bar-shaped groove are respectively There are two arc-shaped plates with opposite concave surfaces, and transparent screw holes are provided on the outside of the arc-shaped plates. The centerlines of the screw holes in each strip groove are collinear, and the screws pass through the corresponding screw holes and are connected with the The thread fits, and the front and rear sides of the arc-shaped plate are respectively fixed with sliders. The shock absorbing rod transmits the vertical force through its own buffer bridge. If it exceeds the buffer limit of the shock absorbing rod, the shock absorbing rod guides the force to the flat plate through the arc plate and the screw, so that the residual force is more evenly directed to the main body, further reducing the force of the main body. probability of damage.

Description

technical field [0001] The invention belongs to the technical field of highway bridges, in particular to a rotational friction damping shock absorbing bearing device. Background technique [0002] The bridge support is an important component that connects and constrains the upper and lower structures of the bridge. The difference in the support often affects the force transmission between the upper and lower structures of the bridge, thereby affecting the overall structure of the bridge. At present, the anti-seismic bearings of bridge structures are usually fixed directly with the bridge. Once the bridge bears too much weight or is subjected to other longitudinal forces, the longitudinal force can often be transmitted to the bearings, which may easily cause damage to the internal structure of the bearings, making it impossible to Play the role of earthquake resistance. Contents of the invention [0003] The invention provides a rotating friction damping and shock absorbin...

AI Technical Summary

Problems solved by technology

At present, the anti-seismic bearings of bridge structures are usually fixed directly with the bridge. Once the bridge bears too much weight or is subjected to other longitudinal forces, the longitudinal force can often be transmitted to the bearings, which may easily cause damage to the internal structure of the bearings, making it impossible to Play the role of earthquake resistance

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