Stress homogenized rail wheel having a wheel disc connecting wheel hub and wheel rim
First Claim
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1. A rail wheel, comprising:
- a wheel hub and a wheel rim;
a wheel disc which connects the wheel hub and the wheel rim, each of the wheel hub and the wheel rim including outer sides adjacent the wheel disc, the wheel disc including a central radial zone in which the wheel disc has a thickness which decreases from the wheel hub to the wheel rim, the wheel disc further including an inner transition zone adjacent the wheel hub and an outer transition zone adjacent the wheel rim, outer sides of the wheel disc in the inner and outer transition zones presenting curved surface configurations which merge tangentially into respective ones of the outer sides of the wheel hub and the wheel rim adjacent the wheel disc, said curved surface configurations being defined by compound curves determined geometrically by radially extending generatrices, a surface configuration of outer sides of the wheel disc in the central radial zone being determined geometrically by radially extending straight generatrices which intersect one another on the wheel rim in the outer transition zone between the curved surface configurations of the outer sides adjacent the wheel rim.
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Abstract
A stress-homogenized track wheel with a wheel disk (3) which connects the wheel hub (1) and wheel rim (2) and decreases in thickness from the hub (1) towards the rim (2), the disk'"'"'s outer surfaces merging via three-center curves as radial generatrices tangentially with the adjacent outer surfaces of the hub (1) and rim (2) is shown. In order to suppress stress peaks and reduce the stress across the radial width of the wheel disk, the two outer surfaces of the wheel disk (3) are defined in the radial central area (1) geometrically by radial straight generatrices (Z3*,Z3**) which intersect in the area between the three-center curves on the wheel rim (2).
2 Citations
14 Claims
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1. A rail wheel, comprising:
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a wheel hub and a wheel rim; a wheel disc which connects the wheel hub and the wheel rim, each of the wheel hub and the wheel rim including outer sides adjacent the wheel disc, the wheel disc including a central radial zone in which the wheel disc has a thickness which decreases from the wheel hub to the wheel rim, the wheel disc further including an inner transition zone adjacent the wheel hub and an outer transition zone adjacent the wheel rim, outer sides of the wheel disc in the inner and outer transition zones presenting curved surface configurations which merge tangentially into respective ones of the outer sides of the wheel hub and the wheel rim adjacent the wheel disc, said curved surface configurations being defined by compound curves determined geometrically by radially extending generatrices, a surface configuration of outer sides of the wheel disc in the central radial zone being determined geometrically by radially extending straight generatrices which intersect one another on the wheel rim in the outer transition zone between the curved surface configurations of the outer sides adjacent the wheel rim. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification