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Broadband noise-reduction steel rail

A rail and noise reduction technology, which is applied in the direction of rails, tracks, roads, etc., can solve the problems of dust accumulation, easy water accumulation, and low service life, and achieve good vibration sound radiation, good noise reduction effect, and long service life.

Inactive Publication Date: 2014-08-13
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This non-closed form of noise reduction structure is also prone to water and dust accumulation, resulting in a low service life

Method used

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  • Broadband noise-reduction steel rail

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Embodiment Construction

[0022] figure 1 It is shown that a specific embodiment of the present invention is a broadband noise reduction steel rail, which is characterized in that the damping material body 2 is pasted on both sides of the rail waist recessed area between the rail 1 fasteners, and the shape of the damping material body 2 Fits with the rail waist recessed area of ​​the rail 1; and the upper part of the damping material body 2 is embedded with a metal block 3, and the lower part of the damping material body 2 is embedded with an inner lower metal block 4 and an outer lower metal block 5, inner and lower metal The block 4 is in contact with the opposite surface of the outer lower metal block 5.

[0023] In this example, the inner lower metal block 4 and the outer lower metal block 5 are inclined from bottom to top and the inclination angle is 45°-85°.

[0024] In this example, clamps 6 are provided on both sides and under the rail 1, and the clamping surface of the clamp 6 is clamped on the ou...

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Abstract

The invention discloses a broadband noise-reduction steel rail. The composition of the broadband noise-reduction steel rail is as follows: damping material bodies (2) are bonded in rail web recessions at the both sides between the fasteners of the steel rail (1), and the shapes of the damping material bodies (2) are adaptive to the rail web recessions of the steel rail (1); upper metal blocks (3) are embedded on the upper portions in the damping material bodies (2), an inner lower metal block (4) and an outer lower metal block (5) are embedded on the lower portions in the damping material bodies (2), and the opposite surfaces of the inner lower metal block (4) and the outer lower metal block (5) are contacted. The broadband noise-reduction steel rail is wide in vibration and noise reduction band, good in noise-reduction effect, reliable in performance, and long in service life.

Description

Technical field [0001] The invention relates to a broadband noise reduction steel rail. Background of the invention [0002] The rapid development of rail transit has brought many conveniences, but the problem of wheel-rail noise has become increasingly prominent, especially in urban rail transit, which shuttles through densely populated areas of people’s lives. It is necessary to reduce wheel-rail noise to reduce the impact on people's normal life. [0003] Wheel-rail noise is caused by the unevenness of the track and wheel treads, and the rapid rolling of the wheels on the track causes the wheels, rails and infrastructure to vibrate. Studies have shown that the noise generated by rail vibration accounts for the main part. Therefore, in order to reduce wheel-rail noise pollution, we can start with reducing rail vibration. The use of low-noise rails is an effective measure to reduce rail vibration. There are two main types of existing low-noise steel rails: one is to paste dampin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B19/00E01B5/02
Inventor 周信肖新标庄继忠黄国元金学松
Owner SOUTHWEST JIAOTONG UNIV
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