Abstract:
The invention relates to an arrangement for placing crane mechanisms, the crane comprising lifting mechanisms (1) with lifting drums (2), lifting ropes (3) in the lifting drums, a lifting trolley (4), a loading element (5) suspended from the lifting trolley (4) by the lifting ropes (3), four auxiliary mechanisms (10) controlling the swaying and twisting of the loading element (5) and the load (9) fastened to it, auxiliary ropes (12) in the rope drums (11) of the auxiliary mechanisms (10), and turning sheaves (13) of the auxiliary ropes (12) in the loading element (5). The lifting mechanisms (1) and lifting drums (2) are fixed to the frame of the crane, the auxiliary mechanisms (10) with their rope drums (11) are located in the lifting trolley (4), and the auxiliary ropes (12) are led from the turning sheaves (13) to a storage drum (14) for the auxiliary ropes in the lifting trolley (4), the storage drum being equipped with an additional mechanism (15) that is independent of the lifting mechanisms (1).
Abstract:
Procedure for moving the main girder (3) and trolley (2) of a crane comprising a gantry part (6) with its bracing structures and a traversing machinery with traversing ropes (4), the traversing machinery being mounted in conjunction with the gantry part. According to the procedure, the trolley is moved by the same traversing machinery as the main girder. When the main girder (3) is to be moved, the trolley (2) is interlocked so that it remains immovable with respect to the gantry (6) and the traversing movement is performed by winding one of the traversing ropes (4a or 4b) onto the winding drum (1) of the traversing machinery and at the same time unwinding the traversing rope (4b or 4a) on the opposite side from the winding drum (1). When the trolley (2) is to be moved, the trolley interlock is released and the traversing movement is performed in the manner described above.