Device for reducing point rail conversion force of movable point rail frog

Abstract

The invention belongs to the technical field of rail transit and relates to a device for reducing the point rail conversion force of a movable point rail frog. The device comprises a point rail assembly and a positioning assembly; the point rail assembly comprises a sleeper, wing rails, a long point rail and a short point rail; the wing rails are fixedly connected with the sleeper; the wing railsare divided into two group; each wing rail group comprises two wing rails, wherein the two wing rails are symmetrically arranged on the upper side and the lower side of the sleeper; and the long pointrail is rotationally connected with the sleeper and located between the two wing rail groups; the long point rail and the short point rail are placed between the two wing rails in an initial state; the distances between the end parts of the long point rail and the short point rail and the two side wing rails are the same; when conversion equipment drags the long point rail and the short point rail to be tightly attached to the wing rails and the sleeper; the stroke of the long point rail and the short point rail is reduced by half, so that the conversion force of the long point rail and the short point rail is effectively reduced, meanwhile, the problem that the point rail conversion force of an existing movable point rail frog is too large is solved, the signal failure rate of a point switch is reduced, and smooth point rail conversion, in-place point rail conversion and driving safety are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a device for reducing the conversion force of a movable frog frog. Background technique [0002] The connection and crossing equipment branch that the rolling stock enters or crosses another line from one line branch is called a turnout. Turnout is an important part of the railway track structure. In the railway transportation business, the arrival and departure of trains, passing, overrunning, locomotive detachment, vehicle shunting, compilation, rolling stock maintenance, cargo loading and unloading operations, etc., all rely on The turnout can only be realized. The movable center rail frog is a frog type of the turnout. The frog has the advantages of continuous trajectory, good smoothness, high passing speed, and high safety. It is widely used. The domestic speed-up turnout, quasi-high-speed Turnouts, high-speed turnouts at home and abroad have adopted the mo...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a device for reducing the conversion force of a movable frog frog, which aims to solve the problem that the existing movable frog frog has a large conversion force due to the large movement range of the rail, and the conventional conversion of the frog is not smooth and the conversion is not smooth. In place, not locked and other problems, resulting in signal failure of the switch machine, endangering the safety of driving

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