| 摘要 |
<p>The invention relates to the field of manufacturing disk wheels for railway vehicles, which are in the form of a disk with an integral rim and are provided with rail-engaging elements. The solid-rolled railway wheel comprises a rim (1) with a flange (2) and a tread (3), a curved disk (4) having an undulatory S shape and being formed by the radii of curvature (arcs) of the radii (R1) and (R2), and a hub (5), wherein the place (6) where the curved disk (4) interfaces with the rim (1) and the place (7) where the curved disk (4) interfaces with the hub (5) are formed by the radii of curvature (arcs) of the radii (R3, R4) and (R5, R6), and a line (AB) represents the centre line of the radial section of the curved disk (4), wherein point (A) is situated at the place (6) where the curved disk (4) interfaces with the rim (1), and point (B) is situated at the place (7) where the curved disk (4) interfaces with the hub (5), and points (A) and (B) of the centre line (AB) of the curved disk (4) are situated on opposite sides of the median plane of the waves (O-O) which is perpendicular to the axis (X-X) of rotation, intersects the rim (1) at the tread (3) and intersects the centre line (AB) of the curved disk (4) at bend point (Y), wherein the first point (A) and the flange (2) of the rim (1) are situated on the same side of the median plane of the waves (O-O). According to the invention, the curved disk (4) is designed so that the relationship between the distance (H2) from the second point (B) to the median plane of the waves (O-O) and the distance (H1) from the first point (A) to the median plane of the waves (O-O) is 0.60-0.99, and the relationship between the radius (R1) of the portion (AY) of the centre line (AB) of the curved disk (4) and the radius (R2) of the portion (BY) of the centre line (AB) of the curved disk (4) is 1.01-1.67. The invention makes it possible to increase the service life of the proposed solid-rolled railway wheel, and also to reduce the wear rate of railway tracks.</p> |
