Track maintenance machine

摘要

The machine (1) includes a track lifting unit (12) having an elevatable tool frame supported by lifting drives on a machine frame (5). Vertical adjustment drives control vertical position of lifting rollers relative to the tool frame. The operation of the vertical adjustment drives is interlocked with the operation of a transverse adjustment drive. Two pairs of lifting rollers are fixed to the tool frame, and are squeezed together by transverse adjustment drive transversely to the longitudinal direction. The track lifting unit and a working unit (6) are mounted on the machine frame. Flanged rollers support the tool frame to the rails of the track (3). The machine frame is supported with undercarriages (4) at movable state along the track.