The invention relates to the technical field of cranes, and particularly relates to a crane with a cantilever adjusting mechanism. The crane comprises a stand column, wherein a rotating shaft is arranged on the stand column; a cantilever is rotationally arranged on the rotating shaft; a sliding rail is arranged on the cantilever; an electric hoist is movably arranged in the sliding rail; a supporting column is fixedly arranged on the rotating shaft; a motor is fixedly arranged in the supporting column; the motor is fixedly connected with a screw rod; a nut base is movably arranged on the screwrod; a pull rod is hinged to the nut base; and the nut base is arranged in a limiting groove in a sliding manner. A storage battery with a single-pole three-throw switch is used for supplying power to the motor and an electromagnet, the upwarping degree of the cantilever is safely adjusted and controlled, when power is supplied to the electromagnet, the stability of the cantilever is improved, the cantilever is prevented from drooping during use, and when power is supplied to the motor, the electromagnet is powered off, a safety structure is automatically reset, and the adjusting process of the cantilever is not hindered.

    本发明涉及起重机技术领域,具体为一种带有悬臂调节机构的起重机,包括立柱,所述立柱上安装有回转轴,且回转轴上转动安装有悬臂,所述悬臂上设置有滑轨,且滑轨中活动安装有电动葫芦,所述回转轴上固定安装有支柱,且支柱中固定安装有电机,所述电机固定连接有丝杆,且丝杆上活动安装有螺母座,所述螺母座上铰接有拉杆,且螺母座滑动安装在限位槽中;通过带有单刀三掷开关的蓄电池对电机和电磁铁进行供电,以安全调控悬臂的上翘度,在对电磁铁进行供电时,增加悬臂的稳固性,防止悬臂使用时出现下垂,而进行电机供电时,则对电磁铁断电,使得保险结构自动复位,不对悬臂的调节过程产生阻碍。


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    Title :

    Crane with cantilever adjusting mechanism


    Additional title:

    一种带有悬臂调节机构的起重机


    Contributors:
    SHEN WEISHA (author)

    Publication date :

    2020-11-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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