A TRAVELLING MACHINE AND PROCESS FOR RECONDITIONING THE BED OF RAILWAY TRACKS

摘要

A track work train for successively reconditioning ballast bed zones supporting respective assembled track section comprises a track building vehicle and a plurality of freight cars interconnected for common movement along the track. The track building vehicle includes an elongated frame and two undercarriages supporting the vehicle frame for movement on the track. A hoist is mounted on the vehicle frame for lifting an assembled track section off the ballast bed and the vehicle frame spans a ballast bed reconditioning zone resulting from the lifting of the assembled track section off the ballast bed. A vertically adjustably ballast bed excavator is mounted on the vehicle frame adjacent the hoist and a conveyor band is associated with the excavator. The hoist and the excavator with the associated conveyor band are displaceably mounted on a guide track on the vehicle frame for movement along the vehicle frame in the direction of the track.