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Railway wheel with small deformation

A technology for railway vehicles and railways, which is applied in the direction of wheels, wheels characterized by track running parts, and vehicle parts, etc. It can solve the problem that the thermal conductivity of composite materials is not as good as that of metal, increase the deformation of railway wheels, and increase the residual tensile stress of railway wheels And other issues

Pending Publication Date: 2022-01-04
MG VALDUNES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Such railroad wheels provide satisfactory results in relation to the limitation of deformation using hitherto used braking devices, which generally have brake shoes made of metal, which are able to dissipate part of the heat, thereby restricting the railway wheel fever
[0015] However, new brake devices will use brake shoes made of composite materials in the future. The thermal conductivity of composite materials is not as good as that of metals, so that the brake shoes emit less heat during braking, and the railway wheels will withstand greater heat during braking. Increased railway wheel deformation and increased residual tensile stress of railway wheels

Method used

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  • Railway wheel with small deformation
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Embodiment Construction

[0032] figure 1 The railway wheel 2 shown has a general shape of revolution about a central axis X-X', the railway wheel having a rim 4, a hub 6 and a web 8 ensuring the connection between the rim 4 and the hub 6.

[0033] Preferably, the railway wheel 2 is implemented as a single piece of material. Thus, the rim 4, the hub 6 and the web 8 are made in one piece. The railway wheel 2 is eg forged or molded.

[0034] The railway wheel 2 has two opposing surfaces, a first surface 2A and a second surface 2B.

[0035] The first surface 2A is arranged towards another railway wheel coaxial with the railway wheel 2 and forms an axle therewith, and the second surface 2B is arranged towards the opposite direction to said other railway wheel.

[0036] The rim 4 has a wheel tread 10 and a rim 12 .

[0037] The wheel tread 10 is the surface of the rim 4 over which the rim 4 rolls on the railway track during operation.

[0038] The rim 12 is located on one edge of the rim 4 and on the s...

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Abstract

The invention discloses a railway wheel with small deformation. The railway wheel (2) has a rim (4), a hub (6) and a web (8) connecting the rim (4) to the hub (6), the web (8) is connected to the rim (4) by a first connecting region (14) and to the hub (6) by a second connecting region (16), and the web (8) extends along a longitudinal line (L); the warp (L) extends between a first point (A) at the junction of the web (8) and the first connecting region (14) and a second point (B) at the junction of the web (8) and the second connecting region (16), and the tangent (TA) of the warp (L) at the first point (A) and the tangent (TB) of the warp (L) at the second point (B) define a non-zero angle.

Description

technical field [0001] The invention relates to a railway wheel with little deformation, especially when the railway wheel is braked with brake shoes. Background technique [0002] This railroad wheel can be used on heavy-duty freight railcars, or for high-speed running railcars. High-speed rail vehicles are generally capable of traveling at speeds greater than 200 km / h. [0003] A railway wheel generally has a rim, a hub and webs that ensure the connection between the rim and the hub. The rim generally has a wheel tread and side guiding rims. [0004] The railway wheel is used to be installed on the axle positioning support surface by its hub, and the wheel tread through its rim contacts the rail and travels on the rail. The rim of the rim is in contact with the side of the rail to ensure lateral guidance of the railroad wheel when changing course and when on the guard rail. [0005] The braking of the railway wheel can be ensured in particular by means of the brake sho...

Claims

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Application Information

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IPC IPC(8): B60B17/00
CPCB60B17/0006B60B17/0068B60B2900/311
Inventor F·G·J·德米利F·A·A·福廷S·M·R·萨朗格罗
Owner MG VALDUNES
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