Embedded fixed type seamless high manganese steel frog structure

Abstract

Disclosed is an embedded fixed type seamless high manganese steel frog structure. The structure comprises a high manganese steel frog body and a wear-resisting point rail mosaic block. The frog pointrail easy-to-wear zone of the high manganese steel frog body is provided with a vertical-through inner cavity, and bearing shoulders are symmetrically manufactured at the lower portions of the two side walls of the inner cavity; the length and width of the wear-resisting point rail mosaic block are matched with the length and width of the inner cavity, the rail type of the wear-resisting point rail mosaic block is consistent with the rail type of the frog point rail deletion zone on the high manganese steel frog body, supporting shoulders are symmetrically manufactured at the lower portions ofthe two side walls of the wear-resisting point rail mosaic block, the wear-resisting point rail mosaic block is embedded into the inner cavity, the supporting shoulders are seated on the bearing shoulders, and an upper welding line and a lower welding line formed between the wear-resisting point rail mosaic block and the high manganese steel frog body are welded, so that the wear-resisting pointrail mosaic block and the high manganese steel frog body are fixed together to form a complete frog structure. A heavy-load seamless circuit is adopted, and the whole service life of the frog can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of railway turnouts, and in particular relates to an embedded fixed seamless high manganese steel frog structure. Background technique [0002] The wear and damage of frogs, the main components of heavy-duty railway turnouts, are far greater than those of ordinary lines. Frogs used in existing heavy-duty railway turnouts have problems such as short service life and frequent replacement, which seriously restrict the transportation capacity of heavy-duty railways. Fixed frog is a frog form widely used in domestic heavy-haul railways, which can meet the requirements of jointed and seamless line laying. The main structural feature is the integral structure of frog core rail and wing rail. The core rail and wing rail are made of alloy steel, high manganese steel or forged high manganese steel, so the manufacturing cost is relatively high. During the service of most frogs, due to the structure of the fixed frog, ...

AI Technical Summary

Problems solved by technology

This solution leads to gaps in the high manganese steel frog core rail, which is not suitable for seamless lines, and the core rail and frog body are connected by bolt connection, the overall strength is poor, and it is difficult to meet the strength requirements of heavy-duty railways for frogs; It is difficult for heavy-duty railways to prevent the core from moving up and down when the vehicle passes by only through the rear end face of the core to cooperate with the inclined surface of the frog body

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