Aerial rotary lifting appliance for lifting and mounting steel box girder of suspension bridge

The utility model discloses an aerial rotary lifting appliance for lifting and mounting a steel box girder of a suspension bridge, which comprises a main lifting frame, a rotating shaft and an auxiliary lifting frame for hanging the steel box girder, a sliding mechanism sliding along a suspension cable is arranged on the main lifting frame, the rotating shaft is rotatably arranged on the main lifting frame, and the auxiliary lifting frame is hung at the bottom end of the rotating shaft. The main hanging bracket is provided with a rotation driving mechanism for driving the rotating shaft to rotate positively and negatively. The aerial rotary lifting appliance for lifting and installing the suspension bridge steel box girder is simple in structure, safe and reliable in operation, convenient to operate and capable of improving the construction efficiency and reducing the construction cost. 本实用新型公开了一种悬索桥钢箱梁起吊安装用空中旋转吊具，包括主吊架、旋转轴和用于挂装钢箱梁的副吊架，主吊架上设有沿悬索滑行的滑行机构，旋转轴转动设于主吊架上，副吊架吊设于旋转轴的底端，主吊架上设有用于驱动旋转轴正反旋转的旋转驱动机构。该悬索桥钢箱梁