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Low-abrasion wheel set and rail vehicle applied to multi-small-radius curve rail

A low-wear, wheel-set technology, applied in the field of rail vehicles, can solve the problems of wheel flange wear, reduced curve passing capacity, increased depreciation costs of rail vehicle wheelsets, and various damages to rails, etc.

Pending Publication Date: 2021-04-30
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the wheel of the existing rail vehicle passes through a curve, since the edge of the rim surface does not follow the guide rail like the tread surface, the edge of the rim surface will inevitably make continuous two-point contact and collision with the side of the guide rail during the curve passing process. As a result, relatively strong sliding friction and wheel-rail interaction force will inevitably be generated, causing the flange surface to be worn rapidly, which greatly increases the depreciation cost of the rail vehicle wheel set and various damages to the rail, and greatly increases the curve passing ability of the vehicle. reduce

Method used

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  • Low-abrasion wheel set and rail vehicle applied to multi-small-radius curve rail
  • Low-abrasion wheel set and rail vehicle applied to multi-small-radius curve rail
  • Low-abrasion wheel set and rail vehicle applied to multi-small-radius curve rail

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Embodiment Construction

[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the following embodiments will specifically explain the low-wear wheelset of the present invention and the rail vehicle applied to multiple small-radius curved tracks in conjunction with the accompanying drawings. It is to be noted that the descriptions of these embodiments are used to help understanding of the present invention, but are not intended to limit the present invention.

[0026] Such as figure 1 As shown, the low-wear wheel set 100 in this embodiment includes a wheel axle 10 , a wheel set 20 and an oil stop unit 30 .

[0027] The wheel set 20 includes wheels 21A respectively arranged at both ends of the wheel axle 10 . In this embodiment, the wheels 21A are fixed at both ends of the wheel axle 10 through shoulder structures on the wheel axle 10 .

[0028] Such as figure 2 As shown, the wheel 21A includes a tread portion 21, a ri...

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PUM

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Abstract

The invention belongs to the field of road and bridge engineering, and discloses a low-abrasion wheel set which can greatly reduce abrasion between a rail and a rim surface and greatly reduce depreciation cost of a rail vehicle wheel set and comprises a wheel set body, the wheel set body comprises wheels, and each wheel comprises a tread portion, a rim portion and a coupling bearing for connecting the tread portion and the rim portion together. When a curve passes, the tread portion and the rim surface can independently rotate in the curve passing process, so that rolling friction instead of sliding friction is generated between the rim surface and the side surface of the rail in the curve passing process. The invention further provides a rail vehicle applied to the multi-small-radius curve rail, and the service life of the rail vehicle can be greatly prolonged by using the low-abrasion wheel set.

Description

technical field [0001] The invention belongs to the field of road and bridge engineering, and in particular relates to a low-wear wheel set and a rail vehicle applied to multiple small-radius curved tracks. Background technique [0002] A single wheel in a wheel set of a rail vehicle is an integrally formed web wheel structure, and has an inner rim surface and an outer tread surface, wherein the outer tread surface is in contact with the upper surface of the rail, and the rail vehicle rolls along the upper surface of the rail. When running along the track, the diameter of the inner rim surface is larger than that of the tread surface, so that the rim surface can protect the rail vehicle from derailment when the rail vehicle has a large lateral movement relative to the track. [0003] When the wheel of the existing rail vehicle passes through a curve, since the edge of the rim surface does not follow the guide rail like the tread surface, the edge of the rim surface will inev...

Claims

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Application Information

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IPC IPC(8): B60B17/00B60B37/00
CPCB60B17/0006B60B17/0068B60B37/00
Inventor 尧辉明高武迪
Owner SHANGHAI UNIV OF ENG SCI
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