Hydraulic damper with leakage prevention, short stroke and high energy consumption

Abstract

The invention discloses a hydraulic damper with leakage prevention, short stroke and high energy consumption and belongs to the technical field of structural damping. The hydraulic damper comprises a cylinder barrel, a piston rod, a piston, separation boards and a pressure reducing communicating pipe. When the damper works, the piston and the cylinder barrel relatively move, liquid in the cylinder barrel is forced to pass through overflow holes of the separation boards, and the action of consuming energy is achieved. Meanwhile, multiple separation boards are arranged, so under the condition that the stroke of the damper is identical, energy consumption of the damper is the sum of energy consumption of multiple conventional dampers connected in parallel, and further the effects of short stroke and high energy consumption are realized; in addition, due to the adoption of the separating design of the piston and the overflow holes and a pressure reducing communicating pipe technology, the leakage balance among all chambers of the cylinder barrel in the working process of the damper is realized, the phenomenon of liquid exudation caused by the difference between the internal pressure and the external pressure of the cylinder barrel is avoided, and the durability of the damper is improved.

Description

technical field [0001] The invention relates to an anti-leakage hydraulic damper with small stroke and high energy consumption, which belongs to the technical field of structure damping (vibration). Background technique [0002] At present, most of the existing hydraulic dampers are closed cylinders composed of an outer cylinder and a piston. The cylinder is evacuated and filled with viscous liquid, and the entire damper is divided into upper and lower parts. When the hydraulic damper is working, the piston forces the viscous fluid in the cylinder through the overflow hole to dissipate energy. But at this time, the pressure in the cylinder is high, which may easily cause the liquid in the cylinder to leak out, and then cause the damper to not work normally, and due to the closed structure, it is not easy to overhaul. At the same time, because the conventional hydraulic damper adopts a piston structure, the effect of shock absorption (vibration) energy consumption is limited...

AI Technical Summary

Problems solved by technology

But at this time, the pressure in the cylinder is high, which will easily cause the liquid in the cylinder to leak out, which will cause the damper to not work normally, and due to the closed structure, it is not easy to overhaul

At the same time, because the conventional hydraulic damper adopts a piston structure, the effect of shock absorption (vibration) energy consumption is limited when the relative displacement of the structure is small.

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