The invention discloses a portal frame and a forklift comprising the same. The portal frame comprises an outer portal frame. The middle door frame is connected with the outer door frame in a liftable manner; the third portal frame is connected with the middle portal frame in a liftable mode, a pallet fork assembly capable of laterally moving and rotating is arranged on the third portal frame in a liftable mode, an electric cylinder electrically connected with a driver is arranged on the third portal frame, and a lifting oil cylinder is arranged on the outer portal frame and used for driving the middle portal frame to ascend and descend. A first chain wheel is arranged on the middle door frame, a first chain is arranged on the first chain wheel in a surrounding mode, and the two ends of the first chain are connected with the outer door frame and the third door frame respectively so that the third door frame can ascend and descend with the stroke twice that of the middle door frame. By arranging the third portal frame driven by the electric cylinder, the electric cylinder drives the third portal frame to lift, operation is stable and reliable, action is accurate, the third portal frame can be stably and accurately lifted to the target height, the speed is controllable, rapid lifting and deceleration stopping can be conveniently achieved, efficiency is high, and impact is small.
本发明公开了一种门架及其叉车,包括外门架;中门架,其可升降的与外门架连接;第三门架,其可升降的与中门架连接,所述第三门架上可升降的设置有具有侧移和转动的货叉组件,所述第三门架上设置有与驱动器电性连接的电动缸,其中:所述外门架上设置有起升油缸,用于驱动中门架升降,所述中门架上设置有第一链轮,所述第一链轮上环绕设置有第一链条,且第一链条的两端分别与外门架和第三门架连接,以使第三门架能够以中门架的两倍行程升降。本发明通过设置由电动缸驱动的第三门架,电动缸驱动第三门架起升,运行平稳可靠,动作精确,可以平稳的、准确的起升到目标高度,且速度可控,便于实现快速起升并减速停止,效率高、冲击小。
Gantry and forklift thereof
门架及其叉车
2022-12-16
Patent
Elektronische Ressource
Chinesisch
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 |
Gantry of three-way forklift, processing and arranging method of gantry and forklift
Europäisches Patentamt | 2021
|