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Railway vehicle and sound insulation cover thereof

A technology for rail vehicles and sound insulation covers, which is applied in the field of rail vehicles to achieve the effects of reducing noise pollution, reducing transmission and improving sound insulation

Inactive Publication Date: 2021-06-01
CRRC TANGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, high-speed EMU trains generally adopt the method of installing a shroud around the pantograph to reduce the generation of aerodynamic noise, but there will still be aerodynamic noise transmitted into the car

Method used

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  • Railway vehicle and sound insulation cover thereof
  • Railway vehicle and sound insulation cover thereof
  • Railway vehicle and sound insulation cover thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The embodiment of the present application provides a soundproof cover 1, such as figure 1 As shown in the structure, the sound insulation cover 1 is installed in the wind deflector 2 of the pantograph area outside the roof, and includes the main body of the sound insulation cover 1 and the sound insulation and heat insulation assembly 14, and the sound insulation and heat insulation assembly 14 can be bonded to the In the main body of the soundproof enclosure 1; wherein:

[0041] The main body of the soundproof cover 1 includes a top plate 11, a skirt plate 12 fixedly connected to the periphery of the top plate 11, and a reinforcing rib 13 fixedly connected to the bottom surface of the top plate 11; the top plate 11 is provided with a plurality of through holes; the reinforcing rib 13 and the skirt plate 12 are located on the top plate 11 on the same side surface; as figure 2 , image 3 and Figure 4 As shown in the structure, the main body of the soundproof cover 1...

Embodiment 2

[0049] The embodiment of the present application also provides a rail vehicle, such as figure 1 As shown in the structure, the rail vehicle includes a roof and any sound insulation cover 1 provided in the above-mentioned embodiments; the sound insulation cover 1 is fixedly installed on the roof; the sound insulation and heat insulation assembly 14 of the sound insulation cover 1 is arranged on the roof and the sound insulation cover 1 Between the top plate 11 of the main body, the heat and sound insulation components are used to prevent the noise and heat outside the car from being transferred to the inside of the car. comfort.

[0050] When the soundproof cover 1 is installed on the roof, a plurality of mounting blocks are welded on the roof, and a screw sleeve is pre-embedded in each mounting block; After passing through the through hole of the soundproof cover 1, it is threadedly matched with the screw sleeve; between the roof and the skirt plate 12, and between the throug...

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PUM

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Abstract

The embodiment of the invention relates to the technical field of railway vehicles, and in particular relates to a railway vehicle and a sound insulation cover thereof. The sound insulation cover comprises a sound insulation cover body and a sound insulation and heat insulation assembly. The sound insulation cover body comprises a top plate, an apron board fixedly connected with the periphery of the top plate and reinforcing ribs fixedly connected with the bottom face of the top plate; a plurality of through holes are formed in the top plate; the reinforcing ribs and the apron board are positioned on the same side surface of the top plate; the sound insulation and heat insulation assembly is fixedly installed in a groove defined by the top plate and the apron board, and the thickness of the sound insulation and heat insulation assembly is the same as the depth of the groove. The sound insulation cover can improve the sound insulation and heat insulation effects of the pantograph area of the roof, reduce noise pollution in the vehicle and improve the riding comfort of passengers.

Description

technical field [0001] The present application relates to the technical field of rail vehicles, and in particular, relates to a rail vehicle and a sound insulation cover thereof. Background technique [0002] At present, with the continuous improvement of the speed of high-speed EMUs, the noise problem of EMUs during operation has attracted more and more attention. When the train speed exceeds 300km / h, the aerodynamic noise will become the main source of EMU noise, among which the aerodynamic noise on the roof is mainly generated by the pantograph and its components. [0003] At present, high-speed EMU trains generally adopt the method of installing a shroud around the pantograph to reduce the generation of aerodynamic noise, but there will still be aerodynamic noise transmitted to the car. Contents of the invention [0004] The embodiment of the present application provides a rail vehicle and its sound insulation cover, which can improve the sound insulation and heat ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D17/00
CPCB61D17/00
Inventor 钟静静刘涛耿兴春李进伏程春欣赵跃侯丽娴金春日陈静潘乐
Owner CRRC TANGSHAN CO LTD