The invention belongs to the technical field of crane equipment, and particularly relates to a lifting and folding device of a self-walking crane, which comprises a body, one side of the top of the body is rotatably connected with a rotating rod, the other side in the body is rotatably connected with a hydraulic push rod I, and the output end of the hydraulic push rod I is rotatably connected to one side of the outer wall of the rotating rod; a first telescopic rod is slidably connected into the rotating rod. A second telescopic rod is slidably connected into the first telescopic rod. A motor is fixedly connected into the rotating rod, a lead screw is fixedly connected to the output end of the motor, and the lead screw is in threaded connection to one end in the first telescopic rod; first racks are fixedly connected to the two sides of the interior of the rotating rod, gears are rotationally connected to the two sides of the first telescopic rod, the first racks are meshed with the gears, second racks are fixedly connected to the two sides of the outer wall of the second telescopic rod, the gears are meshed with the second racks, and a lifting assembly is arranged on the outer wall of the front end of the second telescopic rod.

    本发明属于吊车设备技术领域,尤其涉及一种自行走吊车的升降折叠装置,包括车身,车身顶部一侧转动连接有转动杆,车身内部另一侧转动连接有液压推杆一,液压推杆一输出端转动连接在所述转动杆外壁一侧,转动杆内部滑动连接有伸缩杆一伸缩杆一内部滑动连接有伸缩杆二;转动杆内部固定连接有电动机,电动机输出端固定连接有丝杆,丝杆螺纹连接在所述伸缩杆一内部一端;转动杆内部两侧均固定连接有齿条一,伸缩杆一两侧均转动连接有齿轮,齿条一与所述齿轮相啮合,伸缩杆二外壁两侧均固定连接有齿条二,齿轮与所述齿条二相啮合,伸缩杆二前端的外壁上设置有起吊组件。


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    Title :

    Lifting and folding device of self-walking crane


    Additional title:

    一种自行走吊车的升降折叠装置


    Contributors:
    SONG ZHENGPU (author) / ZHU KUIZHU (author) / WEI MINGHUI (author) / SUN GANGZHI (author) / SUN NAIXIN (author)

    Publication date :

    2025-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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