MACHINE FOR ELECTRIC FUSION BUTT WELDING OF RAILS

摘要

Mobile machine (1) for the electric flash-butt welding of the two ends in the course or in the joint region (44) of a row of longitudinally aligned, laid rails (5) of a railway track (7), comprising a driving motor (10) mounted on a bogie frame (2) of the machine (1) which is supported by running-gear units (8, 38), a hydraulic pump apparatus (11), a generator (12), a travelling gear (8) and welding-process control device (14) and an electric flash-butt welding apparatus (15) which can be adjusted transversely and vertically by means of drives (25, 23) for the purpose of working the left or right rail section. The two halves of said apparatus, which can be moved relative to one another in the rail longitudinal direction by means of hydraulic cylinders, each have a pair of clamping and welding jaws which can be driven electrically/hydraulically and are connected by means of hydraulic clamping cylinders. In the welding apparatus (15) is integrated a hydraulically driveable weld-upset shearing device. The flash-butt welding apparatus (15) is assigned a rail-drawing or -displacing device (16) which is provided in the rail horizontal plane (65) for the comprehensive arrangement of the welding apparatus (15) and has two rail clamping-jaw pairs (47, 48) which are provided for acting on the rail end region (42, 43) adjoining immediately in front of and behind the welding apparatus (15) and are interconnected with and can be driven by a hydraulic cylinder/piston arrangement (46) which runs in the longitudinal direction of the device (16). IMAGE