The invention discloses a stepless adjustable lifting operation device, comprising: a telescopic tower body comprising a plurality of standard knots sleeved in sequence and an oil cylinder for driving the standard knots to jack; the cross beam frame is arranged on the outermost standard knot; one end of the shear fork lifting mechanism is arranged on the cross beam frame; the lifting sleeve frame is connected to the other end of the shear fork lifting mechanism and comprises a plurality of first friction blocks which abut against the standard sections and guide lifting of the shear fork lifting mechanism, the shear fork lifting mechanism is combined with the variable-cross-section telescopic tower body, and stepless adjustment of the height of the lifting sleeve frame is achieved.
本发明公开一种可无级调节的升降作业装置,包括:伸缩塔身,包括若干节依次套设的标准节以及驱动标准节顶升的油缸;横梁框,设置于最外侧标准节上;剪叉升降机构,一端设置于横梁框上;升降套架,连接于剪叉升降机构的另一端上,包括若干与标准节相抵、对剪叉升降机构升降导向的第一摩擦块,将剪叉升降机构与变截面伸缩塔身结合,实现了升降套架高度的无级调节。
Stepless-adjustable lifting operation device
一种可无级调节的升降作业装置
2025-05-02
Patent
Electronic Resource
Chinese
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 |
Stepless adjustable lifting appliance for large-tonnage eccentric box girders
European Patent Office | 2015
|