Guard Rail Operation of Lateral Path of Railroad Switch

Abstract

The article discusses four different options for entering the guide wheels to the guard rail bends: when driving along a straight path of railroad switches with a straight or curved frog, the rolling stock has a free arrangement in a track; the flanges of its wheelsets either fall into the guard rail gutter without hitting the bends, or run into the bend at any point in it; when moving against the direction and along the direction when leaving the frog curve of the same direction with the railroad switch curve, the front axle of each bogie runs along the outer wheel flange onto the outer rail; the rear axle, depending on the insertion mode, is either pressed against the inner rail, or occupies an intermediate position, or pressed against the outer rail; in case of a directly movement from a straight path to a curved frog, the rolling stock is in a track in a free position and a impact is possible either in the working face of the core, or in the guard track bend; when directly entering the railroad switch with a curve, the reverse railroad switch impact with the front axles of the rolling stocks or bogies will occur in the check rails, the wheels of the rear axles can hit the bends of the guard rails. In all variants of the impact on the bends of guard rails when moving on the side track, they are determined by the number of strokes, the mass participating in the impact, the angle of impact, as well as the amount of transverse displacement of the rolling stock when hitting a guard rail, characterizing the work extinguished by the guard rail, and the smoothness of movement in the frog zone, methods calculating the determination of the length of the straight bends of the guard rails with straight frogs, determining the length of the rectilinear bends of the guard rails with curved frogs, determining the length of the curved bends to guard rails having a constant angle of inclination to the roadway with curvilinear frogs. Guard rails of the sideways of railroad switches take significantly greater impacts than guard rails of the forward direction. The only way to reduce the impact on these bends is to reduce the impact angles and collisions. For railroad switches with curved frogs, as well as for railroad switches with straight grogs with a railroad switch curve extending to the guard rails zone, it is best to use guard rails with curved bends that have the smallest length and provide the most secure entry to the bend.