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A rail vibration absorber device

A vibration absorber and rail technology, applied in the field of rail transit, can solve the problems of affecting vibration reduction and noise reduction, poor rail vibration attenuation effect, inability to completely block rail vibration noise, etc., and achieve the effect of inhibiting transmission and improving consumption.

Active Publication Date: 2022-08-09
广州希声轨道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in rail transit, the wheel-rail noise is divided into high-frequency and medium-low frequency. This kind of product has poor attenuation effect on the rail vibration of medium and low frequency. Part of the rail with the casing can still directly radiate noise to the outside, so it cannot completely block the transmission of rail vibration and noise, which directly affects the effect of vibration and noise reduction

Method used

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  • A rail vibration absorber device
  • A rail vibration absorber device
  • A rail vibration absorber device

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Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like figure 1 , 2 , A steel rail vibration absorber device of the present invention includes a steel rail 1 , a web sound-absorbing and vibration-reducing body 2 , a rail bottom resonance block 3 and a rigid fixing clip 4 . Wherein, the rail bottom resonance block 3 is arranged at the bottom of the steel rail 1, the web sound absorption and vibration reduction body 2 is arranged around the rail bottom resonance block 3 and the rail waist of the steel rail 1, and the rigid fixing clip 4 It is used to fix the web sound-absorbing and vibration-reducing body 2 on the steel rail 1 .

[0029] In a preferred solution, there is a gap between the local position of the web sound-absorbing and vibration-reducing body 2 and the rail waist.

[0030] like Figure 3-6 As shown, in one solution, the web sound absorption and vibration reduction body ...

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Abstract

The invention relates to a steel rail vibration absorber device, which is characterized by comprising a steel rail, a web sound absorption and vibration reduction body, a rail bottom resonance block and a rigid fixing clip, wherein the rail bottom resonance block is arranged at the bottom of the steel rail, and the The web-plate sound-absorbing and vibration-reducing body is arranged around the rail bottom resonant block and the rail waist of the rail, and the rigid fixing clip is used to fix the web-plate sound-absorbing and vibration reducing body on the rail. Compared with the prior art, the present invention not only absorbs the high-frequency noise of wheel-rail coupling, but also improves the attenuation rate of rail vibration propagation through the arrangement of the sound-absorbing plate cavity and the wide-band frequency-modulated resonance block at the rail waist and the rail bottom. Reduce the vibration and noise pollution of rail transit.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to a combined type steel rail vibration absorber device of web sound absorption and tuning body, which is especially used for the control of vibration and noise generated by the forced rail during the operation of rail vehicles. Background technique [0002] At present, while the rapid development of urban rail transit provides people with a fast and safe way to travel, the noise and vibration problems it produces also seriously affect the quality of life of surrounding residents, endanger the safety of buildings around the line, and make the rail itself. Stability, safety and longevity are also affected. Studies have shown that when the train speed is lower than 100km / h, the rolling noise formed between the wheel and rail is the main component of the rail traffic noise and vibration. contribution is particularly evident. The most effective way to control vibration and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B19/00
CPCE01B19/003
Inventor 冯青松高晓刚刘庆杰陈维张凌
Owner 广州希声轨道科技有限公司