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Viscous damping device with axial position limiter

A viscous damper, axial limit technology, applied in the field of viscous dampers, can solve the problems of no damping effect, structural damage, speed-dependent viscous dampers can not meet the use function and other problems

Active Publication Date: 2008-12-03
SHANGHAI RES INST OF MATERIALS CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the viscous dampers developed at home and abroad are speed-dependent, and mainly play a role in damping and consuming structural dynamic responses caused by large impact external loads such as earthquakes, and have only the original damping force for low-speed static loads (such as caused by temperature changes). Less than 10% of the damping force, so there is no damping effect on the structural deformation caused by the deformation of the static load
Once unexpected static load and excessive displacement occur, the velocity-dependent viscous damper will not be able to meet the function and the structure will be damaged

Method used

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Examples

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Embodiment 1

[0015] Such as figure 1 As shown, the viscous damper with an axial limit device includes a left ball joint seat 1, a piston rod 2, a piston 3, a damping cylinder 4, a balance rod 5, a right ball joint seat 6, and a damping medium 7. The left ball hinge seat 1 is connected to the piston rod 2, the piston rod 2 is arranged on the left side of the piston 3, the balance rod 5 is arranged on the right side of the piston 3, the piston 3 is radially arranged inside the damping cylinder 4, and the The damping medium 7 is arranged in the damping cylinder 4, and also includes a combined disc spring 8, a limit cylinder 10, the limit cylinder 10 is made of seamless steel pipe, and the pressure ring A11 is provided with external threads. The pressure ring B12, the pressure ring B12 is provided with external threads, the limit cylinder 10 is arranged between the damping cylinder 4 and the right ball hinge seat 6, the two ends of the limit cylinder 10 are provided with internal threads, and ...

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Abstract

The invention relates to a viscous damper with an axial spacing device, which comprises a left spherical hinge seat, a piston rod, a piston, a damping cylinder body, a balancing bar, a right spherical hinge seat, damping medium, a combined disk spring, a spacing cylinder body, a pressure ring A, and a pressure ring B. The spacing cylinder body is arranged between the damping cylinder body and the right spherical hinge seat, internal threads are arranged at two ends of the spacing cylinder body, the left end of the spacing cylinder body is connected with the damping cylinder body via the pressure ring A, the right end of the spacing cylinder body is connected with the right spherical hinge seat via the pressure ring B, the length of the balancing bar is extended into the spacing cylinder body, a threaded small circular cylinder is arranged at the right end of the balancing bar, and the combined disk spring is installed on the small circular cylinder. Compared with the prior art, the inventive viscous damper can meet the technical requirements on dynamic energy dissipation for shock resistance, and meet the technical requirements on static load and excessive displacement limit.

Description

technical field [0001] The invention relates to the field of vibration reduction and anti-seismic, in particular to a viscous damper with an axial limit device. Background technique [0002] At present, the viscous dampers developed at home and abroad are speed-dependent, and mainly play a role in damping and consuming structural dynamic responses caused by large impact external loads such as earthquakes, and have only the original damping force for low-speed static loads (such as caused by temperature changes). Less than 10% of the damping force, so there is no damping effect on the structural deformation caused by the deformation of the static load. Once unexpected static load and excess displacement occur, the velocity-dependent viscous damper will not be able to meet the function and the structure will be damaged. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a viscous vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/16F16F9/32
Inventor 钱丹萍徐斌周红卫徐校春
Owner SHANGHAI RES INST OF MATERIALS CO LTD
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