The invention discloses a forklift portal and a forklift, and relates to the technical field of forklifts. The door frame specifically comprises a first-stage door frame, a second-stage door frame, a third-stage door frame and a fourth-stage door frame, all the door frames are movably connected, and a first telescopic piece used for driving the second-stage door frame to reciprocate in the height direction of the first-stage door frame is arranged on the first-stage door frame; when the second-stage portal frame is provided with a second telescopic piece used for driving the third-stage portal frame to reciprocate in the height direction of the second-stage portal frame, a first transmission piece is further included, the first end of the first transmission piece is connected to the fourth-stage portal frame, and the second end of the first transmission piece is fixedly connected to the second-stage portal frame. The first transmission part abuts against the telescopic shaft of the second telescopic part, and the first end of the first transmission part can be tensioned or loosened along with movement of the telescopic shaft so as to drive the fourth-stage door frame to do reciprocating motion in the height direction of the third-stage door frame. And the stress of structural parts such as a lifting chain, oil steel and each stage of portal frame is reduced, and the bearing capacity of the portal frame is improved.
本发明公开了一种叉车门架和叉车,涉及叉车技术领域。具体包括:第一级门架、第二级门架、第三级门架以及第四级门架,各个门架之间均活动连接,第一级门架上设有用于驱动第二级门架沿着第一级门架的高度方向往复运动的第一伸缩件;当第二级门架上设有用于驱动第三级门架沿着第二级门架高度方向往复运动的第二伸缩件时,还包括第一传动件,第一传动件的第一端连接在第四级门架上,第一传动件的第二端固定连接在第二级门架上,第一传动件抵接于第二伸缩件的伸缩轴上,第一传动件的第一端可随伸缩轴的运动拉紧或放松,以带动第四级门架沿着第三级门架的高度方向往复运动。降低起升链条、油钢、以及各级门架等结构件的受力,提高门架的承载能力。
Forklift portal and forklift
一种叉车门架和叉车
2023-08-18
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 |