CN202278923U

CN202278923U - Spoke of rail traffic wheel

Info

Publication number: CN202278923U
Application number: CN2011204238720U
Authority: CN
Inventors: 徐志富; 臧权同; 王克宇; 徐帅
Original assignee: Yangzhou Huatie Railway fittings Co Ltd
Current assignee: Yangzhou Huatie Railway fittings Co Ltd
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2012-06-20
Anticipated expiration: 2021-11-01

Abstract

The utility model provides a spoke of a rail traffic wheel and relates to the technical field of rail traffic wheels. The spoke provided by the utility model is composed of thin shells in a butterfly basin shape; the thin shell which is close to a wheel hub is conical and the thin shell which is close to a rim is in a parabola curve shape; and the thin shell between the conical shape and the parabola curve shape is in a basin bottom shape of an asymptotic line curve. According to the utility model, the fatigue strength and dynamic strength of wheels are improved by utilizing different quantities of the connected thin shells, mutual positions of the thin shells, inclined angles of central longitudinal axes of section profiles of the thin shells and different construction methods.

Description

A kind of spoke of track traffic wheel

Technical field

The utility model relates to track traffic wheel technical field.

Background technology

In the prior art, the track traffic wheel is normally by wheel hub, spoke and form wheel rim and the wheel rim of running surface of wheeltrack is formed.The shell that spoke is made up of the plane that is connected, the conical surface or curved shell system.The shape of spoke former has: straight-arm plate, s type former, undaform former, basin type former.The shape of former has bigger influence to the structural strength and the rigidity of wheel, and its radial rigidity can make wheel that bigger elasticity is arranged, and the state of stress and the reduction wheel track of wheel move firmly down can to improve the braking heat load.The axial stiffness of former should be tried one's best greatly, reduces the axial deformation of wheel, prevents normal contact position of wheel track and wheel rim angle, influences the vehicle operating performance and increases the possibility of climbing rail.

Summary of the invention

The utility model purpose is to design a kind of equal stress, the high spoke of casting the track traffic wheel of material density and quality.

The said spoke of the utility model is the shell of butterfly basin type, is taper near the shell of wheel hub, is parabolic curve shape near the shell of wheel rim, is shape at the bottom of the basin of asymptote curve at the shell between said taper and the parabolic curve shape.

The utility model can adopt the quantity of the different shells that is connected, the mutual alignment of shell, and shell cross section profile central longitudinal axis angle of inclination, and different building methods is realized the raising of wheel strength at repeated alternation and dynamic strength.

The said bevelled height of the utility model is 10～15% of the said shell degree of depth.

The degree of depth of the said parabolic curve shape of the utility model shell is 20～10% of the said shell degree of depth.

Eccentricity e >=1 of the asymptote curve of shape at the bottom of the said basin of the utility model, along with the increase of e, hyperbola dehisces to become open gradually, and the degree of depth of shape is 70～75% of the said shell degree of depth at the bottom of the said basin.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

The specific embodiment

As shown in Figure 1, track traffic wheel 1 comprises wheel hub 2, spoke 3 and forms the wheel rim 4 of wheel rim 5 and running surface of wheeltrack 6.

The shell that is shaped as butterfly basin type that the spoke 3 of the utility model is made up of the conical surface that is connected or curved shell system.

Shell near wheel hub 2 is taper, and like the C section among the figure, it highly is 10～15% of shell degree of depth h.

Shell near wheel rim 4 is a parabolic curve shape, like the A section among the figure, and is 20～10% of shell degree of depth h near the parabolic curve shape degree of depth h1 of wheel rim 4.

It at the shell between taper C section and the parabolic curve shape A section shape at the bottom of the basin of asymptote curve; Like the B section among the figure, the eccentricity e of asymptote curve >=1 is along with the increase of e; Hyperbola dehisces to become open gradually, and the degree of depth h2 of shape is 70～75% of shell degree of depth h at the bottom of the basin of asymptote curve.

Claims

1. the spoke of a track traffic wheel; It is characterized in that said spoke is the shell of butterfly basin type; Shell near wheel hub is taper, is parabolic curve shape near the shell of wheel rim, is shape at the bottom of the basin of asymptote curve at the shell between said taper and the parabolic curve shape.

2. according to the spoke of the said track traffic wheel of claim 1, it is characterized in that said bevelled height is 10～15% of the said shell degree of depth.

3. according to the spoke of the said track traffic wheel of claim 1, the degree of depth that it is characterized in that said parabolic curve shape shell is 20～10% of the said shell degree of depth.

4. according to the spoke of the said track traffic wheel of claim 1; Eccentricity e >=1 that it is characterized in that the asymptote curve of shape at the bottom of the said basin; Along with the increase of e, hyperbola dehisces to become open gradually, and the degree of depth of shape is 70～75% of the said shell degree of depth at the bottom of the said basin.