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Noise reduction composite wheel rib

A composite wheel and spoke technology, which is applied to the wheel field of rail transit vehicles, can solve the problem of not having a good solution for the noise control of the spoke, and achieve the effect of ensuring the overall rigidity and strength requirements and reducing noise.

Inactive Publication Date: 2007-07-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the operation of the wheel, the spokes are the main medium for propagating wheel-rail noise, and the existing wheels do not have a good solution for the noise control of the spokes.

Method used

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  • Noise reduction composite wheel rib
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Embodiment Construction

[0011] As shown in the figure, the wheel spoke of the present invention is composed of a mandrel 1 and a damping layer 3 wrapped outside the mandrel 1, wherein the mandrel 1 is thick at both ends and thin at the middle, and an inner shoulder 11 and an outer shoulder 12 are formed at both ends. , the damping layer 3 wraps the elongated part between the inner shoulder 11 and the outer shoulder 12 . The damping layer 3 consists of fiber-reinforced plastic. The middle part of the mandrel 1 is a section of thinner connecting rod 13 , and a low-density foam material 2 is filled between the connecting rod 13 and the damping layer 3 . In this way, the cross-sectional area of ​​the rigid connection in the spoke can be further reduced, the effect of vibration reduction and noise reduction can be enhanced, and the processing technology requirements of the spoke can be met at the same time.

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Abstract

The invention discloses a noise reduction composite spoke, which consists of core and vibration damping layer on the exterior surface of core, wherein two ends of core displays thick with thin middle, which form inner and outer projected shoulders; the vibration damping layer is covered on the thin part between inner and outer projected shoulders, which is made of reinforced plastic of fiber to reduce vibration and noise for wheel; the vibration damping layer integrates core, which guarantees the entire rigidity and strength for spoke.

Description

technical field [0001] The invention relates to a wheel of a rail transit vehicle, in particular to a wheel spoke with a composite structure and noise reduction effect. Background technique [0002] During the operation of rail transit vehicles such as trains, subways, light rails, etc., the wheels roll on the track at high speed to generate vibration and noise. Generally, integral rigid wheels are used, and the noise and vibration are transmitted through steel spokes, causing pollution to passengers and the surrounding environment. In the prior art, there have been combined wheels that can reduce vibration. The Chinese invention patent application with application number 96107574.0 discloses a combined wheel, which is composed of two parts: the tire of the outer ring and the center of the inner ring. , A ring of elastic damping parts is set between the tire and the center of the wheel, which can achieve a certain damping effect. However, since the spokes are the main mediu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B3/00
Inventor 钟世云林建平龚农斌余卓平赵洪伦黄明泰薛元德
Owner TONGJI UNIV