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Urban railway transport vibration attenuation turnout structure

A technology for urban rail transit and turnouts, which is applied in the direction of tracks, roads, buildings, etc., and can solve the problem of fastener system stability, pull-out resistance, vibration reduction effect reduction, and vulcanized vibration-damping fasteners that have not been popularized and applied in a large area. Affect the service life of the turnout and the surrounding environment, etc., to achieve the effect of gauge maintenance ability and high safety, reliable fastener connection, and enhanced pull-out resistance

Active Publication Date: 2016-08-17
CHINA RAILWAY BAOJI BRIDGE GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous acceleration of train running speed and more intensive traffic volume, the vibration and noise problems caused by the collision of wheels and rails during operation will affect the service life of turnouts and the surrounding environment, which not only increases the daily maintenance cost, but also It restricts the development of properties and is not conducive to the development of the surrounding economy
[0003] A large number of common separate fasteners are used in the existing urban rail transit. Usually, a rubber backing plate is installed under the iron backing plate to provide elasticity for the track system. The iron backing plate is fixed on the top of the sleeper by the bolts of the switch tie. The backing plate is subject to large compression deformation, which makes it lose part of its elasticity, and the vibration damping performance of the fastener is difficult to fully exert
[0004] In recent years, in order to improve the vibration damping performance of urban rail transit, a small number of turnouts have adopted integral vulcanized vibration damping fasteners, which can basically meet the needs of line applications. However, due to the overall vulcanized design, the manufacturing cost is high. The stability, pull-out resistance and vibration damping effect of the fastener system will be greatly reduced, and it needs to be replaced as a whole, which increases the maintenance cost. Therefore, the vulcanized vibration damping fastener has not been widely used so far.

Method used

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  • Urban railway transport vibration attenuation turnout structure
  • Urban railway transport vibration attenuation turnout structure
  • Urban railway transport vibration attenuation turnout structure

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Embodiment Construction

[0017] combined with figure 1 , 2 , 3, 4, 5 describe an embodiment of the present invention.

[0018] An urban rail transit vibration-damping turnout structure, comprising a basic rail 1, a point rail 2 and a guide rail 3, the basic rail 1, the point rail 2 and the guide rail 3 are all installed on the track bed through a vibration-damping fastener system 4; The heel end of the rail 2 has an elastic bendable section 16, and the width of the rail limb on the working side side of the elastic bendable section 16 is smaller than the width of the rail limb on the working side side of the other sections of the tip rail 2, that is, the working side of the elastic bendable section 16. 15-50mm is cut off on one side of the rail limb; the joints of the basic rail 1, the tip rail 2 and the guide rail 3 are connected by the vibration-damping joint splint 17 and the common joint splint 18, and the vibration-damping joint splint 17 is installed on the non-working side On one side, the com...

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Abstract

Disclosed is an urban railway transport vibration attenuation turnout structure. The urban railway transport vibration attenuation turnout structure comprises stock rails, switch rails and guide rails. The stock rails, the switch rails and the guide rails are mounted on a track bed through vibration attenuation fastener systems; the heel ends of the switch rails are provided with elastic bendable sections; the width of rail limbs of the working sides of the elastic bendable section is smaller than that of rail limbs of the working sides of the other sections of the switch rails; the stock rails, the heel ends of the switch rails and joints of the guide rails are connected through vibration attenuation joint clamping plates and common joint clamping plates, the vibration attenuation joint clamping plates are mounted on the non-working sides, and the common joint clamping plates are disposed on the working sides; and the top end faces of the vibration attenuation joint clamping plates are higher than the rail top faces of connected steel rails, and the top end faces of the vibration attenuation joint clamping plates have inclination consistent with that of wheel treads, so that the wheel treads operate on the top end faces of the vibration attenuation clamping plates when a train passes through joints. By means of the urban railway transport vibration attenuation turnout structure, vibration and noise caused by mutual impact of wheels and rails are reduced, the service life of turnout parts is prolonged, moreover, turnout construction is convenient, and less daily maintaining is needed.

Description

technical field [0001] The invention belongs to the technical field of vibration-damping turnouts, and in particular relates to a vibration-damping turnout structure for urban rail transit. Background technique [0002] Urban rail transit has higher requirements on the safety and stability of line operation, and the lines run through densely populated urban areas, with high environmental protection standards. With the continuous acceleration of train running speed and more intensive traffic volume, the vibration and noise problems caused by the collision of wheels and rails during operation will affect the service life of turnouts and the surrounding environment, which not only increases the daily maintenance cost, but also It restricts the development of properties and is not conducive to the development of the surrounding economy. [0003] A large number of common separate fasteners are used in the existing urban rail transit. Usually, a rubber backing plate is installed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B7/00E01B19/00
CPCE01B7/00E01B19/003
Inventor 费维周李文博王阿利瞿连辉李强
Owner CHINA RAILWAY BAOJI BRIDGE GRP
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