| 摘要 |
<p>The object of the invention is a bridge crane, which comprises a main girder (1), which is fitted to travel supported by end carriages (2) essentially at both ends and which bridge crane further comprises a hoisting trolley (3) traveling supported by the main girder (1) and a rope drum (4) mounted on bearings to rotate in an essentially stationary position, from which rope drum the hoisting rope (4a) is guided to a hook (7) traveling along with the hoisting trolley (3). The hoisting rope (4a) is supported from below for at least a part of its essentially. horizontal section.</p> |
