The invention discloses a marine folding arm crane capable of compensating multi-degree-of-freedom motion of a ship body, and relates to the technical field of ship manufacturing. The crane comprises a base, a rotary support, a stand column, folding arms and a telescopic arm, the stand column and the first-stage folding arm are connected through a first oil cylinder, the first-stage folding arm and the second-stage folding arm are connected through a second oil cylinder, and the crane is controlled to reach a hoisting position through the first-stage oil cylinder, the second-stage oil cylinder and the rotary stand column; the second-stage folding arm and the third-stage folding arm are connected through a third oil cylinder, the third-stage folding arm and the fourth-stage folding arm are connected through a fourth oil cylinder, the fourth-stage folding arm and the telescopic arm are connected through a fifth oil cylinder, and the influence of movement of a ship body on the crane during hoisting operation is compensated through the combined action of the telescopic arm controlled by the third oil cylinder, the fourth oil cylinder and the fifth oil cylinder; a lifting winch is mounted at the upper end of the extension part of the telescopic arm; two fixed pulleys for transferring ropes are mounted at the tail end of the telescopic arm; the problem that an existing marine crane cannot carry out hoisting operation when the motion amplitude of a ship body is large due to the influence of stormy waves can be solved.

    本发明公开了一种可补偿船体多自由度运动的船用折臂吊机,涉及船舶制造技术领域;该吊机包括基座、回转支撑、立柱、折臂和伸缩臂,由第一油缸连接立柱和一级折臂,由第二油缸连接一级折臂和二级折臂,通过第一、第二级油缸和回转立柱控制吊机到达起吊位置;由第三油缸连接二级折臂和三级折臂,由第四油缸连接三级折臂和四级折臂,由第五油缸连接四级折臂和伸缩臂,通过第三、第四油缸和第五油缸控制的伸缩臂共同作用补偿吊机在起吊作业时受船体运动的影响;伸缩臂伸出部分上端安装有起升绞车,伸缩臂末端装有两个用于传递绳索的定滑轮;本发明可以解决现有船用吊机在船体受风浪影响运动幅度较大时无法进行吊装作业的问题。


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    Title :

    Marine folding arm crane capable of compensating multi-degree-of-freedom motion of ship body


    Additional title:

    一种可补偿船体多自由度运动的船用折臂吊机


    Contributors:
    CHANG ZONGYU (author) / LI JINYI (author) / NI PINGHU (author)

    Publication date :

    2022-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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