Thrust wheel for heavy-duty railway wagons and bogie thereof

Abstract

The invention relates to a thrust wheel and a bogie, and in particular relates to a thrust wheel (which is applicable to heavy-duty railway wagons, can reduce loss and unsprung mass, and can reduce the operation cost, improve the quality of operation and greatly increase the carrying capacity) for heavy-duty railway wagons, and a bogie thereof. The bogie comprises a central crossbeam, side frames and wheel sets, wherein the side frames are symmetrically connected to the two ends of the central crossbeam, and the wheel sets are symmetrically arranged at the two ends of each side frame by a wheel set shaft; and the bogie is characterized in that the bogie also comprises at least a pair of thrust wheels arranged between the wheel sets; the thrust wheel is arranged on the side frame and comprises a rim, a radial plate and a hub which are integrally arranged; and the external wheel surface of the rim is not provided with a wheel flange, and the operating surface of the rim is axially horizontal and 115mm in width. The thrust wheel and bogie provided by the invention has the advantages that: the carrying capacity of the bogie is greatly increased, the contact stress to a wheel rail is reduced, the abrasion of the wheel rail is reduced, the quality of operation is improved, and the operating cost is reduced; meanwhile, the bogie is simple in structure, low in manufacturing difficulty, and low in cost.

Description

technical field [0001] The invention relates to a supporting wheel and a bogie, in particular to a supporting wheel and a bogie of a heavy-duty railway vehicle. Background technique [0002] In order to improve the railway transportation capacity, in addition to the management level, speed increase and heavy load are two indispensable technical means. In our country, remarkable achievements have been made in terms of train speed, especially in passenger transport, and great progress has been made in freight transport, but there is still much work to be done. At present, the axle load of my country's railway freight cars has also increased to 23t, and the coal train has reached 25t. Except for special vehicles such as large-tonnage clamp cars and flat cars with concave bottoms, the load of each section of general freight vehicles is borne by two two-axle bogies. , or increase the number of axles of the bogie to form a multi-axle bogie; or increase the bearing capacity of th...

AI Technical Summary

Problems solved by technology

Railway maintenance is a systematic project, which not only requires a lot of manpower, financial resources and time costs, but also affects the transportation scheduling of the entire line, so that the effect required for heavy-duty transportation cannot be achieved

At the same time, the braking distance of heavy-duty trains with large axle loads is long, the longitudinal impact force is large, the number of train sections is large, the total length is large, and the length of stations and avoidance lines are all unsolved problems in heavy-duty transportation.

[0004] Although traditional multi-axle bogies, such as four-axle and eight-wheel bogies, can also greatly increase the load capacity and disperse the wheel-rail contact stress, a connecting beam must be added to connect the two sets of bogies into a structure, so the center point of roll It will inevitably rise, and it is not conducive to the combined application of loading, unloading, and supporting facilities such as station equipment conditions, and it also causes difficulties in connecting other vehicles and locomotives; at the same time, the traditional multi-axle bogie has a complex structure, high manufacturing cost, and heavy weight. The mass is large, and it cannot effectively reduce the unsprung mass and improve the running quality, so it is not an ideal choice for heavy-duty transportation

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