Embedded combined high-manganese steel frog with alloy steel point rail and alloy steel wing rails inlaid

Abstract

The invention relates to a method that can effectively improve the impact resistance and wear resistance of the wing rail, prolong the service life of the wing rail, and fundamentally solve the problem of the heart wing rail in the transition zone of the embedded combined high manganese steel frog wheel. The problem of premature failure and improve the service life of the entire group of frogs is the embedded combination of high manganese steel frogs embedded in the alloy steel core rail and wing rail. The embedded combined high manganese steel frog is composed of embedded high manganese steel The fork heel rail and center rail wing rail alloy steel mosaic blocks are assembled by high-strength bolt connection pair, rail gasket and spacer iron. The embedded high manganese steel fork core adopts a composite structure and the embedded high manganese steel fork core body is cast Manganese steel, wheel treads are explosively pre-hardened. Advantages: First, compared with the pure manganese steel fork core, the impact resistance and wear resistance of the fork center wing rail are significantly improved; second, the alloy steel inlay block is lighter in weight and easy to replace and maintain on site; third, the structure of the alloy steel inlay block is simple , small size, low processing and manufacturing costs.

Description

technical field [0001] The invention relates to a method that can effectively improve the impact resistance and wear resistance of the wing rail, prolong the service life of the wing rail, and fundamentally solve the problem of the heart wing rail in the transition zone of the embedded combined high manganese steel frog wheel. The invention relates to an embedded composite high manganese steel frog inlaid with alloy steel core rail and wing rail for improving the service life of the whole group of frogs due to the problem of premature failure, and belongs to the field of railway turnout composite (or assembled) frog manufacturing. Background technique [0002] CN103981778A, name "high-strength alloy steel core rail and wing rail assembled combined frog", including frog core rail, wing rail, common rail wing rail, common steel rail fork heel rail, the frog core rail and both side wing rails are High-strength alloy steel is processed and assembled with the same quality. The hi...

AI Technical Summary

Problems solved by technology

[0015] Design purpose: To design an alloy steel mosaic block with better mechanical properties than high-manganese steel for the core rail and wing rail in the transition area of ​​the wheel, to further improve the impact resistance and wear resistance of the core rail and wing rail, so that the core The service life of the rail and wing rail is extended, which solves the problem of premature failure of the center rail and wing rail in the wheel transition area of ​​the embedded composite high manganese steel frog, thereby improving the service life of the whole group of frogs

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