A motion compensating crane (10) for use on an offshore vessel (1) having a hull (2) with a designed waterline, the crane comprising a rotatable superstructure (12); a main boom (14) mounted to the superstructure and connected to the superstructure at an inner end, the main boom having a distal end remote from the inner end; the main cantilever luffing assembly (15) is suitable for setting the angle of the main cantilever relative to the upper layer structure within the working angle range of the main cantilever; a rigid boom frame (20) pivotally connected to an end (14b) of the main boom; and a level setting assembly (22) adapted to set the rigid boom frame in a leveled position at an angle within the main boom operating angle range. The rigid jib frame is provided with parallel X-direction guide rails (25) which are horizontal in the leveled position of the rigid jib frame. The crane has a movable carrier (27) supported by the X-direction guide rail and moved by a motor-driven X-direction motion displacement actuator assembly.
用于在海上船(1)上使用的运动补偿起重机(10),该船具有带设计吃水线的船体(2),起重机包括可转动上层结构(12);主悬臂(14)安装至上层结构并在内端部连接到上层结构,主悬臂具有远离内端部的末端;主悬臂变幅组件(15)适于将主悬臂相对于上层结构的角度设定在主悬臂工作角度范围内;刚性吊臂框架(20)枢转地连到主悬臂的末端(14b);及水平设定组件(22)适于在主悬臂工作角度范围内的角度时将刚性吊臂框架设在校平的位置上。刚性吊臂框架设有平行的X方向导轨(25),其在刚性吊臂框架的校平的位置中水平。起重机具有可移动承载件(27),其由X方向导轨支撑并由马达驱动的X方向运动位移致动器组件移动。
Motion compensating crane for use on offshore vessel
用于在海上船上使用的运动补偿起重机
2022-04-22
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |