| 摘要 |
The invention relates to a crawler crane comprising two crawler supports (9) with rotating crawlers (8). Both crawler supports (9) are connected by a transversal bridge (10). A superstructure (3) of the crawler crane comprises at least one crane jib that can pivot about a vertical axis and is connected to the transversal bridge (10). A pivotable articulation connects the transversal bridge (19) in a pivotable manner to the crane superstructure (3). At least one of the crawler supports (9) is connected to the transversal bridge (10) by means of a double link (11). A lower link (12) of the double link (11) is articulated on the crawler support (9) by means of a crawler support lower pivotable axis (13) and on the transversal bridge (10) by means of a transversal bridge lower pivotable axis (14). An upper link (15) of the double link (11) is articulated on the crawler support (9) by means of a crawler support upper pivotable axis (16) and on the transversal bridge (10) by means of a transversal bridge upper pivotable axis (17). A drive (20), in particular motorised drive, is used to pivot at least one of the two links (12, 15) about the pivotable axis (13) associated therewith, the result being a level-controllable crawler crane, in which the expenditure for adjusting a base-work position is reduced. |
