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Viscous damper

A viscous damper and viscous damping technology, which is applied in the field of viscous dampers, can solve the problems of small damping force and achieve the effects of small size, compact structure and convenient installation

Inactive Publication Date: 2014-03-26
BEIJING JIUZHOUYIGUI SHOCK & VIBRATION ISOLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the damping force output by existing viscous dampers is pre-designed, and some equipment vibrates less under normal working conditions, but vibrates more when starting and stopping. Therefore, a damping force at low speed and low load is urgently needed. Damper with small force, high speed and high load, the damping force reaches the rated force

Method used

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] figure 1 A preferred embodiment of a viscous damper of the present invention is shown. According to this embodiment, the viscous damper includes a cylinder body 1, a first cylinder head 2 and a second cylinder head 5 respectively located at both ends of the cylinder body 1, the cylinder body 1 and the cylinder heads at both ends form a closed damping cavity, and the Viscous damping liquid is accommodated in the damping cavity. The piston rod 3 extends into the cylinder body 1 through the cylinder heads on both sides, and the contact surfaces of the piston rod 3 and the first cylinder head 2 and the second cylinder head 5 are respectively provided with seals 10 to ensure that the piston rod...

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Abstract

The invention belongs to the technical field of damping (vibration reduction), and particularly relates to a viscous damper. The viscous damper comprises a cylinder body, a cylinder cover, a piston rod, a piston head, a guide sleeve and sealing and viscous damping fluid. The cylinder body and the cylinder cover form a damping cavity, the damping cavity is divided into a first damping chamber and a second damping chamber through the piston head, a two-way holding valve is arranged on the piston head, and the two ends of the two-way holding valve are connected with the first damping chamber and the second damping chamber respectively. According to the viscous damper, the two-way holding valve is arranged on the piston head, when the speed of the viscous damper is larger than the critical speed, due to the fact that force exerted on a valve core of the holding valve is larger than preloaded pressure of a spring, the holding valve is closed, and consequently the output damping force of the viscous damper can reach a rated value. In addition, the viscous damper is compact in structure and convenient to install, and a two-way locking function can be achieved.

Description

technical field [0001] The invention belongs to the technical field of shock absorption (vibration), and in particular relates to a viscous damper. Background technique [0002] In the 1950s, viscous dampers were used as an excellent energy-dissipating shock-absorbing (vibration) structural component in machinery, vehicles, aerospace and military engineering. In the 1970s, they were introduced into buildings, bridges, railways, power plants, and steel mills. It is used in other industries to resist vibration caused by earthquake, wind vibration or other external loads, and has achieved good results. With the rapid development of the structural shock absorption (vibration) industry, viscous dampers have gradually been developed and applied in the field of civil engineering in my country in recent years, and have been gradually applied to bridge engineering, high-rise buildings and equipment foundations. [0003] The common viscous damper is a hydraulic cylinder type, which i...

Claims

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Application Information

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IPC IPC(8): F16F9/19F16F9/34
Inventor 高淑华李贵花邵斌佟小朋曾凡冲周迎春王超任奇梁国君孙燕刘伟邹长云孙方遒李腾
Owner BEIJING JIUZHOUYIGUI SHOCK & VIBRATION ISOLATION
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