Train damping wheel

A wheel and damping technology, applied in the field of transportation, can solve the problems of peeling and easy failure of the adhesive layer, and achieve the effect of reducing vibration and suppressing noise.

Inactive Publication Date: 2015-10-14
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The damping constrained layer reduces noise by reducing wheel vibration, but the high-speed rotation of the wheel and the complex and harsh driving environment tend to cause the adhesive layer between the constrained damping and the wheel web to fail and peel off, so manpower and material resources are required. Detection and painting of wheel surfaces with constrained damping

Method used

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Examples

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Embodiment 1

[0028] Figure 1 to Figure 4 It is shown that a specific embodiment of the present invention is: a damping wheel, including a web 1, a rim 2 and a hub 3, and its structural feature is that both sides of the web 1 are passed through bolts 7 from the inside to the outside. Fixing the annular inner metal plate 4, the viscoelastic damping layer 5 and the outer metal plate 6;

[0029] The annular inner metal plate 4 , the viscoelastic damping layer 5 and the outer metal plate 6 have the same ring width, and the inner and outer peripheral surfaces of the annular ring are not in contact with the wheel.

[0030] In this example, the inner surface of the outer metal plate 6 is provided with a strip-shaped outer plate protrusion 6a, and two strip-shaped inner plate protrusions are arranged on the outer surface of the inner metal plate 4 between every two outer plate protrusions 6a. From 4a.

[0031] In this example, a rubber ring 8 is provided between the nut 7a and the nut 7b of the ...

Embodiment 2

[0034] The structure of this example is basically the same as that of Example 1, except that the inner plate protrusions 4a and outer plate protrusions 6a in this example are distributed from dense to sparse from the outer circumference to the inner circumference of the ring.

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Abstract

The invention discloses a train damping wheel which comprises a center plate (1), a rim (2) and a hub (3). The train damping wheel is structurally characterized in that circular-ring-shaped inner metal plates (4), sticking elastic damping layers (5) and outer metal plates (6) are sequentially fixed to the two sides of the center plate (1) from inside to outside through a bolt (7). The ring width of the circular-ring-shaped inner metal plates (4), the ring width of the sticking elastic damping layers (5) and the ring width of the outer metal plates (6) are the same, and the inner circumferential faces and the outer circumferential faces of circular rings are not in contact with the wheel. According to the train damping wheel, the vibration of the wheel can be relieved, noise generation is inhibited, noise spreading is inhibited, the noise reduction effect is good, installation is easy, the shape of a wheel body is not changed, and application and popularization are easy.

Description

technical field [0001] The invention relates to a train damping 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 popular...

Claims

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Application Information

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IPC IPC(8): B60B17/00B60B3/02
Inventor 何远鹏周信马利军肖新标金学松
Owner SOUTHWEST JIAOTONG UNIV
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