train noise reduction wheels

A wheel and noise reduction technology, applied in the field of transportation, can solve problems such as adhesive layer failure and peeling, achieve structural stability, increase vibration energy consumption, and reduce sound radiation

Inactive Publication Date: 2017-06-16
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-speed rotation of the wheel and the complex and harsh driving environment will easily cause the adhesive layer between the constrained damper and the wheel web to fail and peel off, so manpower and material resources are required to regularly detect and install constrained dampers on the wheel surface

Method used

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Examples

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specific Embodiment approach

[0027] figure 1 , figure 2 and image 3 As shown, a specific embodiment of the present invention is: a noise reduction wheel for a train, including a web plate 1, a rim 2 and a hub 3, and its structural feature is: both sides of the web plate 1 of the wheel are fixed by bolts 6 An annular noise shielding plate 4, the outer edge of the noise shielding plate 4 is in contact with the rim 2 of the wheel, and the inner edge is in contact with the hub 3 of the wheel.

[0028] In this example, the outer edge of the noise shielding plate 4 is in contact with the rim 2 of the wheel, and the specific way in which the inner edge is in contact with the hub 3 of the wheel is: the outer edge of the noise shielding plate 4 is an arc-shaped protrusion The outer damping ring joint 5a is formed, and the outer damping ring joint 5a is in contact with the rim 2 of the wheel; the inner ring edge of the noise shielding plate 4 is a circular arc-shaped protrusion to form the inner damping ring jo...

Embodiment 2

[0033] The structure of this example and embodiment one is basically the same, and the difference is only: the annular noise shielding plate 4 described in this example is made up of more than two fan-shaped shielding blocks 4a, as Figure 4 shown. Figure 5 It is a schematic diagram of the assembly and decomposition of the second embodiment.

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Abstract

The invention discloses a train noise-reducing wheel, which comprises a web (1), a rim (2) and a hub (3). An annular noise shielding plate (4) is fixed, the outer edge of the noise shielding plate (4) is in contact with the rim (2) of the wheel, and the inner edge is in contact with the hub (3) of the wheel. The wheel can suppress noise generation, hinder noise transmission, has good noise reduction effect, is easy to install, does not change the shape of the main body of the wheel, and is easy to popularize and implement.

Description

technical field [0001] The invention relates to a train noise reduction wheel, which belongs to the field of transportation. Background technique [0002] With the rapid development of urban rail transit, wheel-rail noise is the main noise source of rail transit's impact on the environment. The wheel-rail rolling noise of the train is generated by the vibration of the wheel-rail excited by the unevenness of the wheel-rail surface and then transmitted through the air. [0003] Wheel-rail noise sources are mainly composed of wheels and rails. The existing ways to reduce the noise radiation of railway wheels mainly include: First, according to the acoustic principle, reduce the wheel noise through the optimized design of the wheel shape. This method is effective, but due to the complexity of the wheel-rail excitation, it is subject to many restrictions, and the shape of the existing wheels needs to be changed substantially, so the workload is large and it is very difficult to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B17/00
Inventor 肖新标马利军周信何远鹏金学松
Owner SOUTHWEST JIAOTONG UNIV
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