The invention discloses a forklift portal frame device and a reach forklift thereof. The forklift portal frame device comprises a portal frame assembly movably arranged on a forklift body, wherein an inner sliding frame capable of sliding up and down is arranged on the outermost side of the portal frame assembly; a pallet fork assembly is rotationally connected to the outer side of the inner sliding frame through an arranged inclined cylinder; the portal frame assembly comprises a plurality of portal frames which are connected in a sleeved mode and can ascend and descend or slide horizontally; each portal frame comprises a frame structure composed of sliding rail steel channels which are parallel in the left-right direction and at least one cross beam which is transversely connected; and the upper end and the lower end of each portal frame are each provided with at least one set of idler wheels making contact with the adjacent sliding rail steel channels. Structural reinforcing assemblies such as connecting pieces, box-type connecting pieces, flange ribs and tie bars are arranged on each stage of portal frame, so that the strength and rigidity of each portal frame are effectively improved, and small deformation during high lifting is guaranteed; and meanwhile, the inclined cylinder is arranged on the outer side of the portal frame, so that the arm of force of the inclined cylinder is large, the needed diameter is small, and the stroke is small.

    本发明公开了一种叉车门架装置及其前移式叉车,包括可移动的设置在车体上的门架组件,所述门架组件最外侧设置有具有上下滑动的内滑架,所述内滑架外侧通过设置的倾斜缸可转动的连接有货叉组件,所述门架组件包括相互套接、且具有起降或水平滑动的多个门架,所述门架包括由左右平行的滑轨槽钢和至少一根横向连接的横梁组成的框架结构,所述门架上下两端分别至少设置有一组与相邻滑轨槽钢接触的滚轮。本发明通过在各级门架上设置连接件、箱型连接件、翼缘肋条和拉筋等结构加强组件,有效的提高了各个门架的强度和刚性,以保证高起升时变形量小;同时,倾斜缸布置在门架外侧,倾斜缸力臂大,所需直径小,行程也小。


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    Title :

    Forklift portal frame device and reach forklift thereof


    Additional title:

    一种叉车门架装置及其前移式叉车


    Contributors:
    ZONG XIAOBING (author) / TIAN SONGJIE (author) / FANG ZIJIAN (author)

    Publication date :

    2021-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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