A rhombus cross-gauge

Abstract

The invention discloses a rhombohedral crisscross gauge, and relates to the field of railroad tracks. The rhombohedral crisscross gauge comprises a left track and a right track. The rhombohedral crisscross gauge is characterized in that wheel grooves are respectively formed in the middle part of the upper surface of the left track and the middle part of the upper surface of the right track; a wide groove is formed in the left side of each wheel groove, and a narrow groove is formed in the right side of the corresponding wheel groove; a transition section is arranged between the wide groove and the narrow groove; working edges are arranged on the outer side of each wide groove, and are in sliding connection with train wheels; and the wide grooves, the narrow grooves and the transition sections are processed out through milling. Compared with the gauge obtained through push bending of the steel tracks, the gauge change is realized in a machine tooling manner, and the machine tooling manner is more reliable and high in accuracy; and the gauge change is realized in a machine tooling manner, so that the situation that the steel tracks need push bending is avoided, the consistency of under-track foundations is realized, and mounting, preservation and maintenance in the later stage are more convenient.

Description

technical field [0001] The invention relates to the field of railway tracks, in particular to a rhombus cross gauge. Background technique [0002] Railway tracks, referred to as rails, rails, tracks, etc., are used on railways and cooperate with switchers to allow trains to walk without turning. The track is usually composed of two parallel steel rails. The rails are fixed on the sleepers, and the ballast is under the sleepers. The rails made of steel can bear greater weight than other materials. Sleepers, also known as sleepers, or road sleepers, function to separate and distribute the weight of the rails, keep the rails fixed, and maintain the gauge of the rails. Generally speaking, the bottom of the track is paved with gravel ballast, also known as ballast, crushed stone or ballast bed, which provides elasticity and drainage for the track. Tracks can also be laid on concrete bases (quite common on bridges) or even embedded in concrete. Railway tracks must be maintained...

AI Technical Summary

Problems solved by technology

[0003] When the vehicle passes through the turnout, in order to avoid the wheel bogie from being stuck in the turnout, in the small-radius turnout, the track gauge of the turnout is usually widened, and the common practice is to bend the basic rail of the turnout , so as to realize the widening of the turnout gauge. If the rail is top-bent according to the usual practice, the under-rail foundation of the turnout will inevitably change due to changes in the shape of the rail; High, and with the prolongation of time, stress release will also occur at the top bending part, which will affect the final top bending effect

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