The invention relates to a cantilever crane comprising a support column, an upper stand column, and a lower stand column arranged in the support column. An oil cylinder is arranged in the support column, a piston rod of the oil cylinder is fixedly connected with the bottom of the lower stand column, and at least four sliding blocks are arranged on the outer wall of the lower end of the lower standcolumn. A sliding groove matched with the position of the sliding blocks is formed in the inner wall of the support column, two sets of propelling rod structures are arranged on the side face of theupper stand column, a permanent magnet over a fixing block is arranged on the upper stand column, and upper stand column connecting pieces are arranged on the outer wall of the lower end of the upperstand column. A circle of circular rings are arranged on the outer wall of the upper end of the lower stand column, hinge pin holes are arranged on the upper stand column connecting pieces, a circle of hinge pin holes are arranged on the circular rings, the hinge pin holes of the upper stand column connecting pieces are matched with the hinge pin holes of the circular rings up and down, and a overload induction hanging scroll is arranged on a top hanging part of an electric hoist. According to the cantilever crane, the lifting function of the stand column of the cantilever crane is achieved, the application range is wider, the rotation can be positioned, and the overload is prevented.

    本发明涉及一种悬臂起重机,包含有支撑柱、上立柱、以及设置于支撑柱中的下立柱;支撑柱内部设有油缸,油缸的活塞杆与下立柱的底部固定连接;下立柱的下端外壁均布有至少四个滑块,支撑柱的内壁设置有与滑块位置相匹配的滑槽;上立柱的侧面设置有两组推力杆结构,上立柱在固定块的正上方设置有永磁磁铁;所述上立柱的下端外壁上设有上立柱连接件,下立柱的上端外壁设有一圈圆环,所述上立柱连接件上开设有销轴孔,圆环上开设有一圈销轴孔,上立柱连接件的销轴孔与圆环上的销轴孔上下配合;所述电动葫芦的顶部悬挂处设置有超载感应挂轴。本发明涉及一种悬臂起重机,实现了起重机立柱的升降功能,适应范围更广,回转可定位,防止超载。


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    Titel :

    Cantilever crane


    Weitere Titelangaben:

    一种悬臂起重机


    Beteiligte:
    WANG JIANWEN (Autor:in) / SUN JIANWEI (Autor:in) / WANG LI (Autor:in) / ZHOU YONGQUAN (Autor:in) / MA HAIJUAN (Autor:in) / LI SUNQUAN (Autor:in)

    Erscheinungsdatum :

    2020-09-04


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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