The invention relates to transport engineering, in particular to railway transportation vehicle wheels. Essence of invention: A railway wheel having a central plane perpendicular to an axis of rotation of the wheel which includes a rim formed by a tread surface and a flange, and also includes a hub and a web formed by external and internal surfaces and made in such a way that a theoretical midline of a transverse web profile passes through a first point located in a place of matching the web with the rim, a central point where the theoretical midline has maximum offset from the central plane in a direction opposite to the flange, and a second point located in a place of matching the web with the hub, wherein the external and internal surfaces of the web are formed by external and internal radius curves, respectively, wherein radiuses of the first and the second external radius curves for the external web surface are from 0.04 to 0.05 of a tread diameter, the radius of the third external radius curve is from 0.08 to 0.1 of the tread diameter, the radius of the fourth external radius curve is from 0.07 to 0.09 of the tread diameter, and the radius of the first internal radius curve for the internal web surface is from 0.08 to 0.1 of the tread diameter, radiuses of the second and the third internal radius curves are from 0.06 to 0.08 of the tread diameter, the radius of the fourth internal radius curve is from 0.04 to 0.06 of the tread diameter, wherein the first point is offset to a distance not more than 0.08 of the rim width from the central plane in the direction opposite to the flange, the central point is offset from the central plane to a distance within a range of values from 0.35 to 0.4 of the rim width, and the second point is offset to a distance not more than 0.1 of the rim width from the central plane towards the flange, while a ratio of a web thickness at the first point to a web thickness at the second point is from 0.7 to 1.1 and the ratio of a web thickness at the central point to the web thickness at the second point is from 0.7 to 0.9.
RAILWAY WHEEL
EISENBAHNRAD
ROUE FERROVIAIRE
2018-09-19
Patent
Electronic Resource
English