The telescopic boom of the crane comprises a first boom section, a second boom section, a third boom section, a lifting hook, a driving mechanism and a guide mechanism, the first boom section, the second boom section and the third boom section are sequentially nested to form the telescopic boom, and the lifting hook is mounted at the tail of the third boom section. The synchronous extension or retraction of the second section arm and the third section arm is realized by clockwise or anticlockwise controlling the motor, the speed reducer and the chain wheel of the driving mechanism and guiding of the guide mechanism, so that the internal structure of the telescopic arm is effectively simplified, and the self weight of the telescopic arm is reduced. According to the crane adopting the telescopic arm, the telescopic arm does not use a hydraulic oil cylinder, and a driving mechanism is not arranged on each section arm, so that the internal structure of the telescopic arm is simplified, the self weight of the telescopic arm is effectively reduced, the driving load capacity and power output of the crane in the hoisting process are reduced, and the energy consumption is further reduced.

    本发明涉及一种起重机伸缩臂及起重机,起重机伸缩臂包括第一节臂、第二节臂、第三节臂、吊钩、驱动机构和导向机构,第一节臂、第二节臂、第三节臂依次嵌套组成伸缩臂,吊钩安装在第三节臂的臂尾,通过对驱动机构的电机‑减速器‑链轮进行顺时针或逆时针控制、以及导向机构的导向实现第二节臂和第三节臂的同步伸出或缩回,有效简化了伸缩臂的内部结构,减轻了伸缩臂的自重。采用上述伸缩臂的起重机,由于伸缩臂不使用液压油缸,也不在每个节臂上安装驱动机构,简化了伸缩臂的内部结构,有效减轻了伸缩臂的自身重量,减少了起重机在吊装过程中的驱动负载力和动力输出,进而减少能源消耗。


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    Title :

    Telescopic boom of crane and crane


    Additional title:

    起重机伸缩臂及起重机


    Contributors:
    SUN BIN (author) / ZI HAORAN (author) / LI XIAOMING (author) / WANG ZHAOJIAN (author) / SHI ZHONGWEI (author) / YE JING (author) / ZHU ZHAOQIAN (author) / ZHANG KANGMIN (author) / HAN BIAO (author) / ZOU SHAOJUN (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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