SEAMLESS ROLLED RAILWAY WHEEL

摘要

Use: disk wheels for raiwal vehicles. The expected inventive result and advantages: the decrease of magnitude of the total values of inner stresses by optimal distribution of stresses into the wheel volume that will result in the increase of the wheel service life. A seamless rolled railway wheel 1 comprises a rim 2 and a hub 3 conjugated by curved transitional regions 4 with a disk 5 formed by outward 6 and inner 7 curved surfaces arranged in such a way, that said outward curved surface 6 of said disk 5 from the side of said rim 2 is formed by a first outward radius curvature R1, from the side of said hub 3 by a second outward radius curvature R2 with the curving coinciding with the curving direction of said first outward radius curvature R1 and conjugated between each other a third outward radius curvature R3 with the curving opposite to the curving direction of said first outward curvature R1 and said second outward curvature R2, the inner curved surface 7 of said disk 5 from the side of said rim 2 is formed by a first inner radius curvature R4, from the side of said hub 3 by a second inner radius curvature R5 with the curving coinciding with the curving direction of said first inner radius curvature R4, and conjugated with each other a third inner radius curvature R6 with the curving opposite to the curving direction of said first inner curvature R4 and said second inner curvature R5, characterized in that for said outward curved surface 6 radius of said first outward radius curvature R1 is from 0.09 to 0.14 of the rolling circle diameter, radius of said second outward radius curvature R3 is from 0.1 to 0.15 the rolling circle diameter, radius of said third outward radius curvature R3 is from 0.12 to 0.18 of the rolling circle diameter, and for said inner curved surface 7 radius of the first inner radius curvature R4 is from 0.12 to 0.18 of the rolling circle diameter, radius of said second radius curvature R5 is from 0.1 to 0.15 of the rolling circle diameter, radius of said third inner curvature R6 is from 0.12 to 0.17 of the rolling circle diameter.