Telescopic frog for movable center turnout

Abstract

The invention relates to a telescopic frog for a movable center turnout. The frog comprises a straight station track and a lateral station track which are arranged in a matched mode, a first wing track and a second wing track are arranged in a mode of being matched with the straight station track and the lateral station track, and a compensation swing unit is arranged in a mode of being matched with the first wing track and the second wing track. The side, facing the first wing rail, of the compensation swing unit sequentially comprises a rail transfer section, an elastic bendable section anda fixed section, a telescopic section is arranged on the rear portion of the side, facing the second wing rail, of the compensation swing unit, and the telescopic section is matched with the fixed section; and the compensation swing unit is connected to the controller. The influence of harmful space on rail running is reduced, the harmful space can be eliminated, the external force required for pulling the swing part is effectively reduced, the stability of the pulled short point rail is guaranteed, and then the running stability is guaranteed. The frog is compact and simple in structure, canbe exchanged with an existing fixed frog, eliminates harmful space of the frog for the urban rail transit main track subway turnout, eliminates track gauge line discontinuity, improves the comfort ofthe frog, reduces noise and is environmentally friendly.

Description

technical field [0001] The present invention relates to the technical field of railway tracks; railway track accessories; machines for laying various railways, and in particular to a frog for a telescopic movable center switch that is applied to a shorter track switch such as a subway switch and involves a switch and a cross . Background technique [0002] A frog is a device that makes a wheel pass from one rail to another, and consists of a fork core, wing rails and connecting parts. [0003] The existing frogs used for subway turnouts on the main line of urban rail transit generally adopt fixed frogs, and the main structure diagram of fixed frogs is attached figure 1 As shown, there is a harmful space shown in the figure, and the frog gauge line in the harmful space part is interrupted, which leads to aggravated impact on the frog when the vehicle passes through this part, and is prone to damage to the wing rail and core rail of the frog , In fact, at present, many frogs...

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problem that in the prior art, there is a harmful space in the fixed frog, and the gauge line is interrupted. When the vehicle passes through this part, the impact on the frog is aggravated, and damage to the wing rail and the center rail of t

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