| 摘要 |
A tamping machine (1) for tamping a track (4), including a tamping unit (13) positioned between on-track undercarriages (5) of the machine, vertically adjustable by drives (16), a track lifting unit (17) for leveling and lining a main track (18) on which the on-track undercarriages (5) are travelling, positioned immediately in front of a tamping unit (13) with regard to a working direction (10) of the machine (1). An auxiliary lifting device (19) is designed for lifting a branch rail (20) of a switch (15) branching off the main track, which is fastened on a beam (21) extending perpendicularly to a longitudinal direction (28) of the machine. A lifting tool (27) is designed to be applied to a rail head (26) with a lifting roller (30) to contact with a bottom side (31) of the rail head (26). Two disk-shaped thrust rollers (32), spaced from one another in the longitudinal direction (28) of the machine and rotatable in a common plane of rotation (33), for application to a first side face (34) of the rail head (26) are connected to the auxiliary lifting device (19). A flanged roller (36) is provided for application to a second side face (35) of the rail head (26) and for resting the auxiliary lifting device (19) on the latter. The auxiliary lifting device (19) is pivotable relative to the beam (21) about an axis (42) by means of a drive (41). |
