Damping jacket for railway rail and assembly method thereof

An assembly method and sheath technology are applied in the field of rail vibration and noise reduction, which can solve the problems of strong visual impact, unsatisfactory effect, and high installation cost, and achieve the effects of long service life, good shock absorption and noise reduction performance, and simple production.

Active Publication Date: 2012-08-01
成都西南交大高铁轨道设备有限责任公司 +1
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AI Technical Summary

Problems solved by technology

At present, there are many shock and noise reduction measures, among which the more common method is to use sound barriers, but there are some significant disadvantages of sound barriers: due to noise diffraction, its effect is limited; the effect on high-rise buildings or deep valley environments is limited; Has a strong visual impact; high installation costs
There are other measures such as shock absorbers and dampers, but the effect is not ideal

Method used

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  • Damping jacket for railway rail and assembly method thereof
  • Damping jacket for railway rail and assembly method thereof
  • Damping jacket for railway rail and assembly method thereof

Examples

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specific Embodiment

[0053] Such as Figures 1 to 3 As shown, a damping sheath for railway rails includes an expansion layer 1 that is closely attached to the rail bottom 5 and rail waist 4 of the railway rail 3, and a cladding layer 6 is arranged on the outside of the expansion layer 1; the expansion layer 1 and both ends of the coating layer 6 are provided with a sealing layer 8; the expansion layer 1, the coating layer 8 and the sealing layer 8 form a closed space, and the closed space is filled with liquid damping material to form Damping layer 2.

[0054] The liquid damping material is liquid epoxy damping material.

[0055] The distance between the cladding layer 6 and the expansion layer 1 at the thinner portion corresponding to the rail waist 4 and the rail bottom 5 is greater than the distance between the cladding layer 6 and the expansion layer 1 at the thicker portion.

[0056] The expansion layer 1 in contact with the rail waist 4 of the railway rail 3 extends to both ends along the ...

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Abstract

The invention relates to the field of rail damping and denoising, in particular to a damping jacket for a railway rail and an assembly method thereof. The damping jacket for the railway rail comprises an expansion layer clung to the rail base and rail web of the railway rail, wherein a coating is formed outside the expansion layer, sealing layers are formed at two ends of the expansion layer and the coating, a closed space is formed by the expansion layer, the coating and the sealing layers, and the closed space is filled with liquid damping material. The assembly method comprises the steps as follows: (1) connecting the expansion layer, the coating and the sealing layer at one side together; (2) injecting the liquid damping material to a cavity; (3) arranging the other sealing layer at the opening position; (4) sleeving the damping jacket from one end of the railway rail; and (5) arranging sleepers at the bottom of the railway rail. According to the invention, the damping jacket filled with the damping material is coated on the rail, and the damping material has the damping and the denoising functions, so that the wheel rail noise generated by the rail vibration is effectively reduced.

Description

technical field [0001] The invention relates to the field of rail vibration reduction and noise reduction, in particular to a damping sheath for railway rails and an assembly method thereof. Background technique [0002] With the acceleration of my country's railway network construction and the continuous improvement of train operation speed, the problem of excessive noise in some sections along the line has aroused widespread concern from the whole society. At present, there are many shock and noise reduction measures, among which the more common method is to use sound barriers, but there are some significant disadvantages of sound barriers: due to noise diffraction, its effect is limited; the effect on high-rise buildings or deep valley environments is limited; Has a strong visual impact; high installation costs. There are other measures such as shock absorbers and dampers, but the effect is not ideal. The research shows that: when the train speed is 60-300km / h, the whee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00E01B29/32
Inventor 肖杰灵王平陈嵘赵才友王顶溯
Owner 成都西南交大高铁轨道设备有限责任公司
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