A single-machine, multi-point drive mechanism for railroad switches.

Abstract

A one-machine, multi-point drive mechanism for a railway switch comprises: pull rods (100), at least comprising a first pull rod (101) and a second pull rod (102), the pull rods (100) being hinged to at least two traction points of two switch rails, one end of the first pull rod (101) being used to connect to a switching device (40); support seats (400), comprising a first support seat (401) and a second support seat (402); T-shaped connecting rods (500), hinged to the other end of the first pull rod (101), the T-shaped connecting rods (500) being hinged to the support seats (400); and long connecting rods (600), comprising first and second long connecting rods (601, 602), one end of a long connecting rods (600) being hinged to a first T-shaped connecting rod (501), and the other end being hinged to a second T-shaped connecting rod (502). A parallelogram mechanical structure having stable force transmission is formed by the T-shaped connecting rods (500) and the long connecting rods (600), the force is uniform, and a labor-saving structure is formed; the accuracy of a linear output of the displacement of the switch rails pulled by the pull rods at the traction points and actual range of motion values are satisfied. This achieves one-machine, multi-point driving, having smooth operation, a reduced number of switching devices at a switch, and a reduced electrical maintenance and repair costs.