A jack-up crane (1) comprising a mast (2) supporting a foldable boom (3) comprising boom elements (31, 32, 33) hinged together, the jack-up crane being configurable between a transport configuration in which the boom elements (31, 32, 33) are hinged together and a working configuration in which the boom elements (31, 32, 33) are hinged together, the invention relates to a folding/unfolding system (1) comprising a motor-driven folding/unfolding system (4) for performing a changing configuration operation to effect the movement of the folding and unfolding boom and a control/command system (5) connected to the motor-driven folding/unfolding system to drive it, and one or several inclinometers (61, 62) mounted on one or several boom elements, and a control/command system to measure an actual inclination of the cantilever element relative to the reference axis, the control/command system configured to drive the motor-driven folding/unfolding system as a function of the actual inclination of the cantilever element during the movement of folding and unfolding the cantilever.
一种自升式起重机(1),包括支撑可折叠的悬臂(3)的桅杆(2),可折叠的悬臂包括铰接在一起的悬臂元件(31,32,33),所述自升式起重机可在运输配置和工作配置之间配置,其包括用于执行实现折叠和展开悬臂的运动的改变配置操作的马达驱动的折叠/展开系统(4)和连接到该马达驱动的折叠/展开系统以驱动它的控制/命令系统(5),以及安装在一个或几个悬臂元件上的一个或几个倾角计(61,62),以测量悬臂元件相对于参考轴线的实际倾斜度,控制/命令系统被配置成在折叠和展开悬臂的运动期间根据悬臂元件的实际倾斜度来驱动马达驱动的折叠/展开系统。
Self-elevating crane controlling configuration changing operations
对改变配置操作进行控制的自升式起重机
2022-12-23
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |