| 摘要 |
The invention relates to a traveling crane having a longitudinal beam displaceable on rails, along which a traveler having a hoisting winch comprising a cable drum is displaceable in a transverse direction, by means of which a cable reeved through at least one lower block can be wound up and down, wherein the hoisting winch (10) is displaceable relative to the traveler (7) toward the longitudinal beam (3) in a hoisting winch travel direction (S), such that a cable run out point (20) of the cable (11) that shifts along the cable drum (21) remains in one location relative to the longitudinal extent of the cable drum (21). In order to provide a traveling crane having a longitudinal beam displaceable on rails and comprising an improved construction, the invention proposes that the winching hoist (10) is displaceable transversely to the longitudinal beam (3), that two hoisting winches (10) are provided, the cable drums (21) thereof being disposed parallel to and spaced from each other, that a common cable (11) can be wound up and down by the two cable drums (21), and that the two cable drums (21) comprise cable grooves running in opposite directions (24) and the two cable drums (21) can be operated in the opposite direction of rotation for lifting and lowering a load. |
