The invention relates to the technical field of tower cranes, and discloses a tower crane three-oil-cylinder jacking device which comprises a jacking outer sleeve frame, a jacking supporting device and jacking oil cylinders, the three jacking oil cylinders are arranged on the two opposite sides of the jacking outer sleeve frame, and the three jacking oil cylinders are located at the three vertex positions of an isosceles triangle; the two jacking oil cylinders located on the same side are arranged corresponding to the stand columns of the rectangular frame, and the tops of cylinder bodies of the two jacking oil cylinders are fixed to the stand columns through fixing blocks and first hoops. The single jacking oil cylinder located on the other side is fixed to a cross beam of the jacking outer sleeve frame. The cross beam at least comprises a bottom beam and a top beam, a bearing piece is arranged on the bottom beam, a through hole is formed in the bearing piece, the top beam is disconnected from the corresponding position of the single jacking oil cylinder so that the single jacking oil cylinder can smoothly penetrate to the position above the top beam, and the single jacking oil cylinder and the top beam are fixed through a second clamp. The problem of deformation of the jacking oil cylinder is effectively solved, the jacking oil cylinder is more convenient to disassemble and assemble, and later maintenance and replacement are facilitated.

    本发明涉及塔式起重机技术领域,公开一种塔式起重机三油缸顶升装置,包括:顶升外套架、顶升支撑装置和顶升油缸,在顶升外套架的两相对侧上共设置三个顶升油缸,三个顶升油缸位于等腰三角形的三个顶点位置;位于同一侧的两顶升油缸对应矩形框架的立柱设置,该两顶升油缸的缸体顶部通过固定块、第一卡箍与立柱固定;位于另一侧的单个顶升油缸与顶升外套架的横梁固定;横梁至少包括底梁和顶梁,在底梁上设有承托件,在承托件上设有通孔,顶梁与单个顶升油缸的对应处断开,以使单个顶升油缸能顺利穿透到顶梁上方,单个顶升油缸与顶梁之间通过第二卡箍固定。本发明有效避免顶升油缸的变形问题,也使得顶升油缸的拆装更加方便,便于后期的维护与更换。


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    Title :

    Three-oil-cylinder jacking device of tower crane


    Additional title:

    一种塔式起重机三油缸顶升装置


    Contributors:
    CAI MINYING (author) / YI DAN (author) / LIU LIANG (author)

    Publication date :

    2022-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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