The invention relates to the technical field of tower cranes, and discloses a four-oil-cylinder jacking device of a tower crane, which comprises a jacking outer sleeve frame, a jacking support device and jacking oil cylinders, the jacking device is characterized in that the jacking oil cylinders are arranged on the outer sides of the four stand columns of the jacking outer sleeve frame respectively; an oil cylinder supporting block perpendicular to the stand column is arranged on the jacking outer sleeve frame, a through hole corresponding to the piston rod is formed in the oil cylinder supporting block, and the bottom of a cylinder body of the jacking oil cylinder is fixed to the oil cylinder supporting block and supported by the oil cylinder supporting block. The top and/or the middle of a cylinder body of the jacking oil cylinder are/is fixed to a stand column of the jacking outer sleeve frame through a hoop. A piston rod of the jacking oil cylinder can stretch out and draw back to penetrate through the through hole. During actual work, the lateral direction of the cylinder body of the jacking oil cylinder is hardly stressed, so that the problem of deformation of the jacking oil cylinder is effectively avoided, and the service life of the jacking oil cylinder is prolonged; and meanwhile, 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的四油缸顶升装置,包括:顶升外套架、顶升支撑装置和顶升油缸;其特征在于,沿所述顶升外套架的四个立柱外侧分别设有一个所述顶升油缸;在所述顶升外套架上设有与所述立柱垂直的油缸支撑块,在所述油缸支撑块上设有与活塞杆对应的通孔,所述顶升油缸的缸体底部与所述油缸支撑块固定并由其支撑,所述顶升油缸的缸体顶部和/或中部通过卡箍与所述顶升外套架的立柱固定;所述顶升油缸的活塞杆能伸缩穿过所述通孔。实际工作时,顶升油缸的缸体侧向几乎不受力,有效避免顶升油缸的变形问题,提高顶升油缸的使用寿命;同时,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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    Titel :

    Four-oil-cylinder jacking device of tower crane


    Weitere Titelangaben:

    一种塔式起重机的四油缸顶升装置


    Beteiligte:
    CAI MINYING (Autor:in) / YI DAN (Autor:in) / LIU LIANG (Autor:in)

    Erscheinungsdatum :

    2022-03-15


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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