| 摘要 |
The invention relates to a device dedicated for slewing a crane column (2), which device comprises a fastenable crane base formed by a house (1), which is open at the top and at the bottom and in which a lower tubular part of the crane column (2) is rotatably journalled by means of a number of bearings (7, 8, 9), which have the abilities of absorbing the bending moment as well as the axial and-/or transversal forces, a power source (21) being connected to the crane column (2) via a power slewing in order to provide for a powered rotation of the crane column (2) around a vertical axis of rotation (C). Characterizing for the invention is that the power transmission comprises an eccentric gear (10), which is integrated with the house (1) by being seated in an annular space (6) between the outside of the crane column (2) and the inside of the house (1). <IMAGE> |
