| 摘要 |
A ballast or track formation working machine (1) for a track (8) formed from rails (6) and sleepers (7) has a machine frame (2) capable of travelling continuously on the track by means of rail running mechanisms (5), and a track-lifting device (15) arranged between two rail running mechanisms and connected height-adjustably to the machine frame (2) by means of drives (37) for lifting the track (8). The track-lifting device (15) is equipped with a supporting body (25) which runs perpendicularly to the machine longitudinal direction, is constructed longer than the length of a sleeper, forms, when in use, with the drives (37) a constructional unit (38) embracing the track (8) in the machine transverse direction and supported solely on the machine frame (2), and is connected to a rolling element (26) - rotatable about an axis oriented in the machine transverse direction - for supporting the sleepers (7) of the track (8). <IMAGE> |
