The invention provides a telescopic boom, a control method thereof and a crane. The telescopic boom comprises a first arm, a second arm, a telescopic driving part, an arm pin inserting and pulling and a cylinder pin inserting and pulling mechanism, wherein the second arm is arranged sleeves the outside of the first arm; the telescopic driving part is embedded in the first arm; the arm pin inserting and pulling mechanism is connected with the telescopic driving part, and the arm pin inserting and pulling mechanism is used for penetrating through the first arm to be inserted into the second arm; the cylinder pin inserting and pulling mechanism is connected with the telescopic driving part and is used for being inserted into the first arm; and after the cylinder pin inserting and pulling mechanism is inserted into the first arm, the arm pin inserting and pulling mechanism is pulled out of the second arm and the first arm, and the telescopic driving part pushes the first arm to stretch out or retract relative to the second arm. The telescopic boom can be telescopically adjusted to a proper length according to specific working conditions.

    本申请提供一种伸缩吊臂、其控制方法及吊车,该伸缩吊臂包括第一臂、第二臂、伸缩驱动件、臂销插拔机构和缸销插拔机构,第二臂套设在第一臂的外面;伸缩驱动件嵌设于第一臂中;臂销插拔机构与伸缩驱动件连接,臂销插拔机构用于穿过第一臂插至第二臂中;缸销插拔机构与伸缩驱动件连接,缸销插拔机构用于插至于第一臂中;其中,在缸销插拔机构插入至第一臂后,臂销插拔机构从第二臂和第一臂中拔出,伸缩驱动件推动第一臂相对于第二臂伸出或者缩回。本申请的伸缩吊臂可以根据具体的工况伸缩调节成适当的长度。


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    Title :

    Telescopic boom, control method thereof and crane


    Additional title:

    一种伸缩吊臂、其控制方法及吊车


    Contributors:
    ZHANG LIANG (author)

    Publication date :

    2021-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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