公开(公告)号：US3777900A

公开(公告)日：1973-12-11

申请号：US3777900D

申请日：1971-12-20

申请人： SAM WALLACE CO INC

发明人： BREWER J

IPC分类号： B66C23/32 ,  B66C23/72 ,  B66C23/76 ,  B66C23/84 ,  B66C23/08

CPC分类号： B66C23/84 ,  B66C23/32 ,  B66C23/72 ,  B66C23/76 ,  B66C2700/0392

摘要： A crane for construction of buildings and the like including a climbing support structure adapted to be raised as the building is constructed, a carrier ring on the climbing support structure for rotatably mounting the crane, a boom base platform rotatably mounted on the ring for supporting the base end of a boom, a boom mounted at a base end for movement across a diameter of the ring and rotation with the boom platform, a gantry assembly, a boom topping bridle between the free end of the boom and the gantry assembly for boom support and manipulation, an extension platform for supporting a counter-weight, and a drive apparatus for rotating the boom on the base ring. The boom together with the climbing support structure are lifted and secured at desired heights as a building is erected with the crane. The movement of the lower end of the boom permits adjustments in the working area of the crane.

摘要翻译： 一种用于建筑物等的建筑物的起重机，包括适于在构建建筑物时被升起的攀爬支撑结构，用于可旋转地安装起重机的攀爬支撑结构上的承载环，可旋转地安装在环上的支架基座，用于支撑 悬臂的基端，悬臂安装在基端，用于移动穿过环的直径和与起重臂平台的旋转，机架组件，在起重臂的自由端和起重臂支架的机架组件之间的起重臂顶部 和操纵，用于支撑配重的延伸平台，以及用于使吊环在基座环上旋转的驱动装置。 随着起重机竖立建筑物，起重臂与攀爬支撑结构一起提升并固定在所需的高度。 起重臂的下端运动允许调整起重机的工作区域。