Asymmetric obtuse frog

Abstract

The invention relates to an asymmetric obtuse frog. The asymmetric obtuse frog comprises a point rail, a check rail arranged on one side of the point rail and a stock rail arranged on the other side of the point rail; a midpoint of the check rail is O; the stock rail comprises a lower left straight rail and a lower right curved rail, and an intersection point of the lower left straight rail and the lower right curved rail is X; the point rail comprises a left point rail and a right point rail; the left point rail comprises a left long point rail and a left short point rail; the right point rail comprises a right long point rail and a right short point rail; horizontal distance between the point O and a left end point of the left long point rail, length of the lower left straight rail and length of the lower right curved rail are m, horizontal distance between the point O and a right end point of the right long point rail is n, and m and n do not have the same length; vertical distancet between the point of the point rail and the check rail is 61-64 mm, and vertical distance g between the point of the point rail and the stock rail is 68-72 mm. The asymmetric obtuse frog can meet the demand of simultaneous application of one obtuse frog to a meter-gauge train and a standard-gauge train, that is, the curved rail can allow the meter-gauge train to pass and the straight rail can allow the standard-gauge train to pass.

Description

technical field [0001] The invention relates to an asymmetrical obtuse-angle frog, which belongs to the turnout technology of a three-wire sleeve track line [0002] field. Background technique [0003] On my country's railways, obtuse-angle frogs have the same function as acute-angle ruts, both of which are rail-passing equipment for rolling stock to pass from one rail to another. In the rhombus cross, the frog located on the short axis of the rhombus has an intersection angle formed by the intersection of its working sides greater than a right angle, so it is called an obtuse angle frog. According to its structure, obtuse frogs can be divided into two types: movable obtuse frogs and fixed obtuse frogs. [0004] (1) Movable obtuse frog [0005] The movable core rail obtuse angle frog is composed of a basic rail, two core rails with rotating ends, fasteners and connectors. [0006] Obtuse-angle frogs with movable core rails are generally used in diamond-shaped crosses wi...

AI Technical Summary

Problems solved by technology

[0011] Existing obtuse-angle frogs are mainly used in rhombus intersections, and are rarely used directly for line steering, and their structural forms are symmetrically arranged. The toe length of obtuse-angle frogs is equal to the heel length, and the guard rails on both sides of the central axis The length of the long and short core rails and the width of the flange groove of the frog are all equal, which will bring difficulties to the design of the track line turnout

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