The invention provides a novel combined main beam for a portal crane. The novel combined main beam for the portal crane comprises an upper beam plate and a lower beam plate. The left ends and the right ends of the upper beam plate and the lower beam plate are both in the structural form of contracted steps. Bolt holes are formed in the steps at the left ends and the right ends of the upper beam plate and the lower beam plate. The upper beam plate and the lower beam plate are fixedly connected through H-shaped beams which are uniformly distributed. The end portions of the H-shaped beams are correspondingly embedded into the surfaces of the opposite sides of the upper beam plate and the lower beam plate and are correspondingly and fixedly connected with the upper beam plate and the lower beam plate. A traditional main beam is divided into several parts convenient to transport, and after the upper beam plate, the lower beam plate and the H-shaped beams are transported to a construction site, rapid assembly can be achieved. Compared with a traditional main beam of an integrated structure, the weight of the main beam can be reduced beneficially, improvement in the low weight direction is facilitated, and the structural strength of the main beam is guaranteed by arranging the H-shaped beams.

    本发明提供了一种门式起重机新型组合式主梁,该门式起重机新型组合式主梁包括:上梁板和下梁板,所述上梁板和所述下梁板左右两端的结构形式均为收缩的台阶,且所述上梁板和所述下梁板左右两端的台阶上均设置有螺栓孔,所述上梁板和所述下梁板之间通过均匀分布的H形梁固定连接,所述H形梁的端部对应嵌入所述上梁板和所述下梁板相对的一侧表面中并与所述上梁板和所述下梁板对应固连。本发明将传统的主梁分为几个便于运输的部分,上梁板、下梁板及H形梁这几个部分运输到施工现场后,可以实现快速组装;并且本发明与传统一体结构的主梁相比,有助于减轻主梁的重量,向轻量化方向改进,并且通过设置H形梁,又保证了主梁的结构强度。


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    Titel :

    Novel combined main beam for portal crane


    Weitere Titelangaben:

    一种门式起重机新型组合式主梁


    Beteiligte:
    YIN CHEN (Autor:in) / LI XIANG (Autor:in)

    Erscheinungsdatum :

    2021-01-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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