Crane with at least one crane girder, in particular bridge crane or portal crane

摘要

Crane (1a, 1b) comprising at least one crane girder (2) designed as a truss beam extending horizontally and having an upper rail (3) and a lower rail (4), in particular It relates to an overhead crane or a gantry crane. On the crane girder, the crane trolley (9) having the lifting device is movable. The invention further relates to a method for assembling the crane girder (2), which method comprises an assembling step for producing the truss structure of the crane girder (2). The crane girder (2) includes an adapter (12) at at least one of two opposing ends. The adapter can be attached to the upper rail (3) and the lower rail (4), which aligns the adapter (12) with respect to the upper rail (3) and the lower rail (4). This can then be done by welding the adapter (12) to the desired location on the upper rail (3) and the lower rail (4). [Selection] Figure 4a