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Vehicle wheel

A wheel and wheel spoke technology, applied in the field of railway vehicles, can solve the problems of narrow usable space, wheel wear, wheel vibration, etc., and achieve the effect of wide-band vibration reduction, increase service life, and good vibration reduction effect.

Inactive Publication Date: 2008-08-27
尹学军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wheel is a high-speed rolling part, and the rail is a very long continuum. Both of them have relatively complex shapes, the available space nearby is small, and the strength and force are large. General elastic materials such as ordinary rubber and work in the elastic zone None of the metallic lead can provide sufficient effective damping
This situation has caused technical problems such as wheel vibration, wheel primary noise and wheel wear to perplex those skilled in the art for a long time and cannot be solved

Method used

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Experimental program
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Effect test

Embodiment 1

[0033] see figure 1 The wheel of the present invention includes a wheel body, which is composed of a spoke 11, a rim 12, etc., and a damping body made of a damping material is arranged on at least part of the non-working surface of the wheel body, and the resistance body is a layer of solid damping material 21. Specifically, the solid damping material can be damping rubber, which can be integrated with the rail body through vulcanization, bonding and other means.

[0034] For wheels with this structure, when the train is running, the vibration generated by the wheel forces the damping body to produce shear-based deformation. The damping body produces resistance opposite to the deformation direction due to its damping characteristics, and converts the vibration energy of the wheel The thermal energy effectively reduces the vibration generated by the wheels. Since vibration is the source of noise, the noise is also greatly reduced, especially the primary noise which is difficult...

Embodiment 2

[0036] see figure 2 , the damping body is a damping structure disposed symmetrically on both sides of the wheel body, and the damping structure is sequentially composed of solid damping material 21 and a constraining body 3 from the inside to the outside. The damping material can be a damping material made of damping modified asphalt that is solid at room temperature, adding rubber powder, talc powder, mica powder, etc., and a layer of high-strength fiber mesh is embedded in the middle to make a damping coil, hereinafter referred to as modified permanent asphalt damping membrane. The solid damping material is a viscoelastic solid at normal temperature, and becomes viscous liquid after heating. The constraining body 3 is usually a relatively rigid aluminum plate, color steel plate or stainless steel plate, which is bent or rolled into a profile with a cross section similar to the spoke, or a profile extruded from engineering plastics, that is, the constraining plate, with at ...

Embodiment 3

[0039] see image 3 , and the difference from embodiment 2 is that its damping structure is composed of at least one layer of solid damping material 21 and plate-shaped constraining body 3. The body 3 secures the solid damping material 21 to the wheel body by bolts 5 penetrating the spokes. At the same time, disc springs 6 are arranged under the bolts, which can prevent the bolts 5 from loosening and equalize the fastening pressure.

[0040] This connection method can make the damping body not easy to fall off when the wheel runs at high speed, which ensures the safety of use.

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Abstract

The invention relates a vehicle wheel ran on the track such as railway, subway, city railway, elevated light rail, and high speed railway, and so on. It includes wheel body, damping body formed by the damping material and set on the surface of without working part of the wheel body. The invention discloses adopted; the vibration of the wheel while the train is running forces the damping body to produce distortion relied mainly on shearing. Because of the damping characteristic the damping body is produced resistance whose direction is opposite to the distortion, transformed the vibration energy to heat energy, effectively reduced the vibration caused by the wheel, so that reduced the noise pollution.

Description

technical field [0001] The invention belongs to railway vehicles, in particular to a vehicle wheel running on rails such as railways, subways, urban railways, elevated light rails, and high-speed railways. Background technique [0002] With the modern development of transportation technology, there are more and more urban rail transits such as subways and elevated light rails. While bringing convenience to urban residents, they also bring different degrees of vibration and noise disturbance to residents along the lines. According to the current theory and practice, the vibration is mainly transmitted to the ballast bed through the track contact, and then transmitted to the foundation or tunnel wall or bridge to the pier through the ballast bed, and then transmitted to the surrounding buildings through the soil, generating vibration and solid sound transmission in the building, form interference. Noise is divided into primary noise and secondary noise. The primary noise inc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B17/00
CPCB60B17/0006B60B17/0068B60B17/0058B60B17/0017B60B17/0034B60B17/0048
Inventor 尹学军
Owner 尹学军
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