Sound absorption structure, sound absorption assembly, assembling system and processing technology of sound absorption structure

A processing technology and assembly system technology, applied in the field of sound absorption and noise reduction, can solve the problems of poor sound absorption and noise reduction effects, and achieve the effect of reducing noise and improving the living environment

CN108630188APending Publication Date: 2018-10-09RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-10-09

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Abstract

The invention provides a sound absorption structure, a sound absorption assembly, an assembling system and the processing technology of the sound absorption structure. The sound absorption structure is arranged on a track plate or a track bed of a track, the sound absorption structure has a sound absorption chamber and is used for absorption noise generated in the environment of the track plate orthe track bed, and at least one part of the chamber wall of the sound absorption chamber is made of foam metal. The sound absorption structure is advantaged in that micropores, resonance and diffraction principles are comprehensively adopted, and a problem of poor sound absorption and noise reduction effect of the sound absorption structure in the prior art is effectively solved.
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Description

technical field

[0001] The invention relates to the technical field of sound absorption and noise reduction, in particular to a sound-absorbing structure, a sound-absorbing component, an assembly system and a processing technology of the sound-absorbing structure. Background technique

[0002] At present, the noise problem of high-speed railway and urban rail transit has attracted more and more attention from all parties. How to reduce the environmental noise of railway has always been one of the important tasks of environmental protection workers. In the prior art, a sound-absorbing structure formed of ceramsite concrete, perlite concrete or expansive concrete is usually arranged on the track slab to absorb and reduce noise on the track slab.

[0003] However, due to the combination of particles and Portland cement, the compactness of concrete is reduced, the strength of the sound-absorbing panel is reduced, and it is difficult to form a resonance cavity. The noise reducti...

Examples

Embodiment Construction

[0035] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0037] In the present invention, in the absence of a contrary statement, the used orientation words such as "up and down" usually refer to the direction shown in the drawings, or refer to the vertical, vertical or gravity direction Similarly, for the convenience of understanding and description, "left and right" usually refer to the left and right shown in the drawings; The words are not used to limit the invention.

[0038] In order to solve the problem th...