The invention relates to the technical field of offshore hoisting vibration damping, in particular to a folding arm of a folding arm crane and the folding arm crane.The folding arm crane comprises a folding arm assembly, a winch and a main sling, a hanging scaffold is installed at the end of the folding arm assembly, the main sling is arranged along the folding arm assembly from the winch and penetrates through the hanging scaffold to be connected with a lifting hook, and the folding arm assembly comprises the folding arm; a first damping device and a second damping device are arranged on an arm body of the folding arm, damping action ends of the two damping devices are adjacently arranged, a pulley assembly is connected between the action ends of the two damping devices in series, and the pulley assembly is used for allowing the main sling to bypass and keeping the two damping devices balanced. The pulley assembly moves under the damping action of the two damping devices, so that the main sling is tensioned to ensure that the lifting hook abuts against the hanging scaffold; the two damping devices enable the main sling to be in a tensioning state through the damping effect so as to restrain vibration of the sling in the vertical direction, and then the safety and the operation efficiency of operators are guaranteed.
本发明涉及海上吊装减振技术领域,具体涉及一种折臂起重机的折臂以及折臂起重机,折臂起重机包括折臂组件、绞车以及主吊索,折臂组件的端部安装有吊盘,主吊索从绞车沿折臂组件布置并由吊盘穿过后连接吊钩,折臂组件包括折臂,折臂的臂体上设置有第一、第二阻尼装置,两个阻尼装置的阻尼动作端相邻设置,且两个阻尼装置的动作端之间串接有滑轮组件,滑轮组件用于供主吊索绕过且保持两阻尼装置平衡,主吊索的张力发生突变时,在两个阻尼装置的阻尼作用下滑轮组件移动以使主吊索张紧至保证吊钩抵住吊盘;两个阻尼装置通过进行阻尼作用以使主吊索处于张紧状态从而去抑制吊重在竖直方向的振动,进而保证作业人员的安全和作业效率。
Folding arm of folding arm crane and folding arm crane
一种折臂起重机的折臂以及折臂起重机
2024-06-25
Patent
Electronic Resource
Chinese