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
View PDF6 Cites 11 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Broadband noise-reduction steel rail

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap