The invention provides a novel gantry crane main beam. The novel gantry crane main beam comprises a main beam body, the left end and the right end of the main beam body are both of contracted step structures, bolt holes are formed in the upper surfaces and the lower surfaces of the left end and the right end of the main beam body, and a long-strip-shaped through hole is formed in the middle of themain beam body. A bent steel plate which is integrally bent into an n shape is arranged in the through hole, protruding ridges which protrude are arranged at the upper side and the lower side of thebent steel plate respectively, and the two sides of each protruding ridge are inclined faces. The through hole is formed in the main beam body, the weight of the main beam body can be reduced to the maximum extent, improvement in the light weight direction is facilitated, the bent steel plate in the n shape is arranged in the through hole, and the structural strength of the main beam body is guaranteed.

    本发明提供了一种新型门式起重机主梁,该新型门式起重机主梁包括:主梁,所述主梁的左右两端的结构形式均为收缩的台阶,且所述主梁左右两端的上下表面均设置有螺栓孔,所述主梁居中开设有长条形的通孔,所述通孔内设置有一体弯折呈几字形的折弯钢板,所述折弯钢板上下两侧分别具有凸起的突脊,所述突脊的两侧均为倾斜面。本发明通过在主梁上开设通孔,有助于最大限度的减轻主梁的重量,向轻量化方向改进,而通孔内设置有呈几字形的折弯钢板,又保证了主梁的结构强度。


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    Title :

    Novel gantry crane main beam


    Additional title:

    一种新型门式起重机主梁


    Contributors:
    FAN XIAOKUN (author) / LI XIANG (author)

    Publication date :

    2021-02-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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