Machine for renewing a track

摘要

A track renewal machine includes an elongate machine frame supported by undercarriages on the track and having front and rear frame parts connected by a frame joint. In an upper region, the frame parts are interconnected by a drive by which the frame parts can be spread apart and raised in a vertical direction at the frame joint. A rotatable endless ballast clearing device is mounted between tie lifting and tie laying devices which are mounted on the machine frame between the undercarriages. A first conveyor cooperates with the ballast clearing device for transporting away removed ballast, and a second conveyor for transporting ballast has a discharge end arranged between the ballast clearing device and the tie laying device. A ballast discharge device is associated with the discharge end of the second conveyor, and a vertically adjustable ballast planing device is arranged between the ballast clearing and tie laying devices.