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Viscous damper

A technology of viscous damper and front seal, applied in the field of viscous damper

Pending Publication Date: 2022-04-05
河北震安减隔震技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] With the difference in the magnitude of the earthquake action, the rare earthquake action is generally 5 to 6 times that of the frequent earthquake action, and its energy consumption requirements for the structure will also change. However, the damping effect of the traditional viscous damper is constant Based on this, how to realize the damping effect of the viscous damper can be variable and controllable according to the change of the earthquake action has become an urgent demand

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0019] see figure 1 and figure 2 , a viscous damper provided by an embodiment of the present invention, comprising: a piston 1, a piston rod 2, a cylindrical cylinder body 3, a front sealing sleeve 4 and a rear sealing sleeve 5, wherein the front sealing sleeve 4 is arranged on the cylindrical cylinder At the barrel mouth of body 3, the rear sealing sleeve 5 is set in the cylindrical cylinder body 3, and the piston rod 2 is inserted into the cylindrical cylinder body 3 through the front sealing sleeve 4 and the rear sealing sleeve 5 in sequence, and is connected with the front sealing sleeve ...

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Abstract

The viscous damper comprises a piston, a piston rod, a barrel-shaped cylinder body, a front sealing sleeve and a rear sealing sleeve, the front sealing sleeve is arranged at a barrel opening of the barrel-shaped cylinder body, the rear sealing sleeve is arranged in the barrel-shaped cylinder body, and the piston rod sequentially penetrates through the front sealing sleeve and the rear sealing sleeve to be inserted into the barrel-shaped cylinder body. The piston is arranged on a rod body, located between the front sealing sleeve and the rear sealing sleeve, of the piston rod, a sealing cavity between the front sealing sleeve and the rear sealing sleeve is divided into two cavities, the two cavities are filled with damping media, the flow guide pipe penetrates through the piston and is in sliding sealing with the piston, and the two ends of the flow guide pipe are fixed to the front sealing sleeve and the rear sealing sleeve respectively. A plurality of flow guide holes are formed in the flow guide pipe at intervals. According to the scheme provided by the embodiment of the invention, the damping force is gradually increased along with the movement of the piston as the number of the flow guide holes for flowing in the damping medium is reduced, so that the damping effect is variable; and the size and the number of the flow guide holes can be adjusted to realize controllable damping effect.

Description

technical field [0001] The invention relates to the technical field of shock absorption, in particular to a viscous damper. Background technique [0002] Viscous dampers, as a common energy-dissipating component, are widely used in energy-dissipating and shock-absorbing projects. Common viscous dampers are mainly composed of pistons, piston rods, cylinders and seals. The piston divides the cylinder body into two chambers, and the two chambers are filled with viscous damping liquid as the damping medium. There are small holes on the piston or a gap is left between the piston and the cylinder to allow the damping medium to pass through; when the piston and the cylinder When relative motion occurs, the piston will squeeze the damping medium in the chamber on one side of the moving direction, and the squeezed damping medium flows to the other chamber through the small hole on the piston or the gap between the piston and the cylinder, and the damping medium In the process of hi...

Claims

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Application Information

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IPC IPC(8): F16F9/48
Inventor 管庆松宋晓胜王久伟高向宇
Owner 河北震安减隔震技术有限公司
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