Damping-capacity-adjustable passive shock absorber for bridge construction

Abstract

The invention provides a damping-capacity-adjustable passive shock absorber for bridge construction. The passive shock absorber comprises a bottom plate, a mounting cavity is formed in the bottom plate, a motor is arranged in the mounting cavity, a top plate is arranged above the bottom plate, and a piston rod is fixedly connected with the upper surface of the bottom plate through a bolt; throughthe arrangement of the motor, the piston rod, a rotating rod, a first through hole, a piston, a shell and engine oil, the interior of the shell is divided into two oil cavities through the piston, when a bridge is vibrated, the shell is extruded downwards to slide relative to the piston, vibration energy is absorbed under the pressure difference effect of the two oil cavities, the motor is started, the motor drives the rotating rod to rotate, the overlapping area of the first through hole and a round hole in one side of the rotating rod is changed, then the flow of engine oil between the two oil cavities is changed, the pressure difference of the two oil cavities is changed, damping is regulated and controlled, the passive shock absorber can adapt to different using environments conveniently, and the service life of the bridge is prolonged.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a passive shock absorber for bridge construction with adjustable damping capacity. Background technique [0002] In 4000 BC, human beings began to settle down, lived a tribal life, and began to consider more permanent bridges. The early bridges all used natural materials, which were simple but had extremely weak spanning ability and were not durable. After that, the invention of bricks began. The history of the application of artificial materials, and the invention of iron provides the possibility to expand the application of stone mining. At the same time, the use of iron in bridges has caused great progress in bridge technology. Bridge construction is an artificial structure that spans rivers and caves for people and vehicles. The development of bridge construction is closely related to the progress of human civilization. It should be said that it originated from an...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a passive shock absorber for bridge construction with adjustable damping capacity, which has the advantages of good damping effect and adjustable damping capacity, and solves the problems of poor stability and short service life of bridge constructions. question

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