Horizontal deeply-concealed wear-resistant tongue rail and stock rail structure

Abstract

The invention relates to a horizontal deeply-concealed wear-resistant tongue rail and stock rail structure. The structure can effectively prolong the service life of a tongue rail and comprises the tongue rail and a stock rail, wherein the horizontal slicing depth of the working edge of a tightly attaching section of the stock rail is 6mm; and with respect to the tongue rail which does not adopt the technology, the width of a rail head of the tongue rail is increased by 6mm at positions which have the same distance away from the tip of the tongue rail, the working edge of the tongue rail has a gradient of 1:5, and the non-working edge has a gradient of 1:3. The horizontal deeply-concealed wear-resistant tongue rail and stock rail structure has the advantages that: the horizontal slicing depth of the working edge of the tightly attaching section of the stock rail is 6mm, so that on the one hand, the robustness of the tongue rail can be improved, and on the other hand, the length of a front-end weak cross section can be shortened, and the service life of the tongue rail is effectively prolonged.

Description

technical field [0001] The invention relates to a horizontal deep wear-resistant switch rail and basic rail structure capable of effectively improving the service life of the switch rail, and belongs to the field of switch switch component manufacturing. Background technique [0002] The existing turnout switch is generally processed with a slope of 1:4 on the working side at 16mm below the top of the basic rail. The non-working side of the point rail head is also processed into the same slope. Its structure is as follows: Figure 4 and 5 shown. [0003] The improvement of the thickness of the point rail of the existing point switch mainly depends on the optimization of the plane line shape, and the increase range is very limited. Under the repeated friction and extrusion of the wheels, the point rail is prone to side wear, and then crushes and blocks will appear. [0004] On heavy-duty railways, the Daqin Line Railway successfully launched 20,000-ton unit trains in 2007, ...

AI Technical Summary

Problems solved by technology

Under the repeated friction and extrusion of the wheels, the point rails are prone to side wear, and then appear crushing and block falling

[0004] On heavy-duty railways, the Daqin Line Railway successfully launched 20,000-ton unit trains in 2007, and the current annual transport volume has reached more than 350 million tons. With the increase in transport volume year by year, the side wear damage of the switch point rails that are in direct contact with the wheels is getting worse. The most serious, its average service life is only 1 / 3 of the ordinary railway turnout

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