MACHINE FOR CONTACT BUTT WELDING OF RAILS Russian patent published in 2017 - IPC B23K11/04 B23K37/04 B23K101/26 

FIELD: transportation.

SUBSTANCE: one of the two machine bodies is arranged movable relative to the other. The rods of displacement-draft cylinders are arranged to provide the effect on the movable body. Between the bodies, there is a fin cutting device. Behind the movable body, there is a rear thrust element. Each body is equipped with a rail lifting mechanism, rail clamping cylinders, clamping jaws. Guides for moving the movable body are arranged parallel to the longitudinal axis of the rails to be welded, pass through the movable body, are connected with their ends to the fixed body, and with the other ends to the rear thrust element. On each side wall of the body, there are two cylinders for clamping the rail to be welded, located opposite each other symmetrically with respect to the longitudinal axis and turned on in the opposite way. The piston cavities of both opposing clamping cylinders are interconnected in pairs.

EFFECT: improving the quality of the welded joint, increasing the efficiency and wear resistance of welding equipment, reducing energy consumption.

14 cl, 5 dwg