The invention relates to the technical field of portal cranes, in particular to a small portal crane with a movable track, which is characterized in that a walking base comprises a base with the top surface fixedly connected with the bottom end of a portal frame and the bottom supported on the top surface of the track, driving equipment fixed at the front end of the top surface of the base, and walking wheels driven by the driving equipment and rolling along the side wall of the track; jacking telescopic cylinders extending in the vertical direction are fixed to the two side walls of the base respectively, the bottom ends of piston rods of the jacking telescopic cylinders are connected with supporting plates, the rails comprise at least two linear rails and a plurality of swing rails arranged between the linear rails, and the two ends of each swing rail are provided with tip ends. Transmission mechanisms for driving the swinging rails to horizontally swing relative to the adjacent rail parts are respectively arranged at the end parts of the swinging rails, and the swinging rails are suspended from the ground; the rail lifting walking assembly is used for lifting the linear rail away from the ground, and a universal wheel structure is arranged on the bottom face of the rail lifting walking assembly. The problem that a small portal crane cannot flexibly transfer the lifting operation range is well solved.

    本发明涉及门式起重机技术领域,具体为一种轨道可移式小型门式起重机,行走基座包括顶面与门型架底端固定连接且底部支撑于轨道顶面的底座、固定于底座顶面前端的驱动设备以及由驱动设备带动且沿轨道侧壁滚动的行走轮,底座的两侧壁分别固定有沿竖向延伸的顶升伸缩缸,顶升伸缩缸活塞杆的底端连接有支撑板,轨道包括至少两个直线轨以及设于直线轨之间的多个摆转轨,摆转轨的两端设有尖端,摆转轨端部分别设有驱动其相对于邻近轨道部分水平摆转的传动机构,且摆转轨悬离地面;还包括轨道抬升行走组件,轨道抬升行走组件用于将直线轨抬离地面且轨道抬升行走组件底面设有万向轮结构;较好地解决了小型门式起重机无法灵活转移起重作业范围的问题。


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    Titel :

    Small portal crane with movable rails


    Weitere Titelangaben:

    一种轨道可移式小型门式起重机


    Beteiligte:
    HUANG HAO (Autor:in)

    Erscheinungsdatum :

    2023-09-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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