Dual-rigidity damping vibration isolator, floating slab with same and floating slab track system

A vibration isolator and dual-stiffness technology, which is applied in the field of track vibration and noise reduction, can solve the problems of increased deformation of track slabs, affecting the safety of trains, and the stress state of track structures.

Pending Publication Date: 2021-05-07
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vibration isolator with low stiffness will increase the deformation of the track slab when the train passes, which will affect the safety of the train and the stress state of the track structure.

Method used

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  • Dual-rigidity damping vibration isolator, floating slab with same and floating slab track system
  • Dual-rigidity damping vibration isolator, floating slab with same and floating slab track system
  • Dual-rigidity damping vibration isolator, floating slab with same and floating slab track system

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Embodiment Construction

[0028]Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises. Where M traverse the front floating plate free vibration dynamic load, n is the free vibration dynamic load of the train after the train leaves, W is the trail into the impact minor value dynamic load, and P is the trail into the impact of impact Load.

[0029]Refer to the present inventionFigure 1 to 8, According to an embodiment of the present invention, a twig damper vibrator comprising a fixing portion, a fixing portion including a base 1, a damper 2, and a sleeve 3; the damper 2 includes a large diameter portion and a small di...

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PUM

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Abstract

The invention discloses a double-rigidity damping vibration isolator, a floating slab with the double-rigidity damping vibration isolator and a floating slab track system. The double-rigidity damping vibration isolator comprises a fixing part, and the fixing part comprises a base, a damping cylinder and a sleeve; the damping cylinder is fixed in the middle of the base; the sleeve is correspondingly positioned outside the damping cylinder and is fixed along the peripheral side of the base; a moving part comprises a top cover, a first-stage steel spring, a second-stage steel spring and a damping piston; the top cover is positioned above the sleeve and is movably connected with the upper end of the sleeve through a sealing piece in a sealing manner; the first-stage steel spring is sleeved between the damping cylinder and the sleeve, and the upper end and the lower end of the first-stage steel spring abut against the end faces of the top cover and the base respectively. The second-stage steel spring is arranged in the first-stage steel spring in a penetrating mode, one end of the second-stage steel spring abuts against the step end face of the step-shaped damping cylinder, and a distance is formed between the other end of the second-stage steel spring and the top cover; one end of the damping piston is fixed with the top cover, and the other end is positioned in the smaller-diameter section of the damping cylinder; and the damping cylinder and the sleeve are filled with damping liquid. The structure is simple, and environmental noise can be reduced.

Description

Technical field[0001]The present invention relates to the field of track damping noise reduction techniques, and in particular to a twin damping vibrator and a floating plate and a floating plate rail system having it.Background technique[0002]In order to reduce the environmental vibration noise caused by the operation of the subway, the urban orbit uses the damping track, wherein the damping effect is the steel spring floating plate orbit. The floating board track is isolated from the foundation basis of the rail plate by setting an elastic vibration isolator under the orbit plate, and the purpose of the foundation is achieved.[0003]The floating board essence is a track-spring-damping vibration isolation system, and the quality of system vibration isolation performance depends primarily on the rigidity of the vibration and the quality of the track plate. The larger the orientation mass, the smaller the rigidity of the vibration isolator, the lower the inherent frequency of the syst...

Claims

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Application Information

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IPC IPC(8): E01B19/00
CPCE01B19/003E01B2204/12
Inventor 杜香刚刘韦郭有松肖俊恒江成杨军王树国朱光楠刘伟斌施成于毫勇王健邓娇严卫民孙照亮
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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