Patent ID: 6450101
Filing Date: 2002-09-17
Classification: E01B

Abstract:
A machine for renewing a track composed of two rails fastened to ties supported on ballast, comprising:(a) a machine frame extending in a longitudinal direction and having opposite ends supported on the track by undercarriages, wherein the machine frame includes a front frame part and a rear frame part, arranged one following the other in the longitudinal direction, a frame joint connecting the front and rear frame parts to one another, and drive means interconnecting the front and rear frame parts in an upper region thereof and effective to spread the frame parts apart, wherein the frame parts are raised in a vertical direction at the frame joint; (b) a tie lifting device and a tie laying device, mounted on the machine frame between the undercarriages and spaced from one another in the longitudinal direction; (c) a rotatable endless ballast clearing device, mounted on the machine frame between the tie lifting device and the tie laying device, for taking up ballast; (d) a first conveyor, cooperating with the ballast clearing device, for transporting away taken-up ballast; (e) a second conveyor for transporting ballast, said second conveyor extending in the longitudinal direction and having a discharge end arranged between the ballast clearing device and the tie laying device; (f) a ballast discharge device associated with the discharge end of the second conveyor; and (g) a ballast planing device arranged between the ballast clearing device and the tie laying device and including a drive for vertically adjusting the ballast planing device.