Steel rail cladding vibration reduction structure of embedded type railway and preparation method thereof

A vibration damping structure and embedded technology, which is applied in the direction of track, rail, track maintenance, etc., can solve the problems of aggravated rail corrugation and limited vibration damping effect, solve the problem of corrosion, facilitate and simple construction, and reduce corrugation phenomenon Effect

Inactive Publication Date: 2016-07-06
QINGDAO SRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the vibration and noise reduction of tram tracks mostly adopts bonding at the rail waist or mechanically fixing damping materials to absorb vibration and noise. It has a certain noise reduction function, but at the bottom of the rail, it is still necessary to use a fastener system to provide elasticity. support
The elastic support can be approximated as a discontinuous point support. Under the impact of the train, the vibration reduction effect is limited, which will increase the corrugation of the rail.

Method used

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  • Steel rail cladding vibration reduction structure of embedded type railway and preparation method thereof
  • Steel rail cladding vibration reduction structure of embedded type railway and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The embedded track rail cladding damping structure of this embodiment includes a rail 1 and a polymer elastic damping layer 2, the outer layer of the rail 1 is filled with a polymer elastic damping layer 2; the polymer elastic damping The body layer 2 wraps the two sides and the bottom surface of the rail 1 .

[0029] The polymer elastic damping body layer is made of two-component polyurethane grouting material;

[0030] The two-component polyurethane grouting material includes A component and B component, and the A component includes by weight: polyether polyol: 70 parts, chain extender: 7 parts, antioxidant: 1 part , catalyst: 0.02 parts, leveling agent: 0.5 parts, color paste: 0.1 parts; the B component is polyurethane prepolymer; the weight ratio of A component to B component is 100:12.5-13.5.

[0031] The production process of the A component is as follows: Weigh the raw materials in parts by weight, add polyether polyol, chain extender, antioxidant, leveling agen...

Embodiment 2

[0037] The embedded track rail cladding damping structure of this embodiment includes a rail 1, a polymer elastic damping layer 2 and a skeleton material 3, and the outer layer of the rail 1 is filled with a polymer elastic damping layer 2; The polymer elastic damping layer 2 wraps the two sides and the bottom of the rail 1; the skeleton material 3 is located outside the polymer elastic damping layer 2.

[0038] The polymer elastic damping body layer is made of two-component polyurethane grouting material;

[0039] The two-component polyurethane grouting material includes A component and B component, and the A component includes by weight: polyether polyol: 90 parts, chain extender: 15 parts, antioxidant: 0.5 part , catalyst: 0.1 part, leveling agent: 1 part, color paste: 0.5 part; the B component is a polyurethane prepolymer; the weight ratio of A component to B component is 100:12.5-13.5.

[0040] The production process of the A component is as follows: Weigh the raw materi...

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Abstract

The invention belongs to the technical field of railway traffic equipment and relates to a steel rail cladding vibration reduction structure of an embedded type railway capable of being resistant to corrosion for a long time in the operation process and a preparation method of the steel rail cladding vibration reduction structure. The steel rail cladding vibration reduction structure comprises a steel rail, a macromolecule elastic damping body layer and a framework material. The outer layer of the steel rail is filled with the macromolecule elastic damping body layer. The two side surfaces and the bottom surface of the steel rail are wrapped with the macromolecule elastic damping body layer which is made of a two-component polyurethane grouting material. Construction is convenient and easy, and the vibration and noise reduction effects of the steel rail can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of rail transit equipment, and in particular relates to an embedded track rail cladding damping structure capable of long-term anticorrosion during operation and a preparation method thereof. Background technique [0002] Modern tram is a low-capacity rail transit system that integrates the two characteristics of rail transit and municipal roads and undertakes public transportation functions. It has the advantages of safety, environmental protection, comfort, speed, and low cost, and can undertake the backbone traffic such as subways. Auxiliary functions such as supplement, extension, and transition have developed rapidly in China in recent years. [0003] There are many types of tram track structures, generally speaking, they are mainly divided into buried and non-buried tracks. The non-buried track structure is similar to the ordinary railway track structure, enjoys independent right of way, and is conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B5/02E01B19/00E01B31/02C08G18/48C08L75/08C08L27/06
CPCC08G18/48C08L75/08E01B5/02E01B19/003E01B31/02C08L27/06
Inventor 姚小强闵祥虎朱文杰冯京波王黎明陈焕江
Owner QINGDAO SRI TECH CO LTD
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