The portal frame buffering system for the reach forklift comprises an oil tank and an oil pump which are arranged on a forklift body, the oil pump is communicated with the oil tank and is in transmission connection with a motor, an oil outlet of the oil pump is communicated with a multi-way reversing valve, the multi-way reversing valve is communicated with a forward oil cylinder, and the forward oil cylinder is communicated with a hydraulic cylinder. The multi-way reversing valve and an oil return opening of the forward moving oil cylinder are communicated with the oil tank, and the inductive switch is arranged on the door frame and electrically connected with the electromagnetic valve. By arranging the buffer oil cylinder and arranging the inductive switch on the portal frame, when the portal frame rises, the inductive switch can be triggered, then the buffer system is started, the energy-saving and consumption-reducing effects are achieved, the two-position four-way electromagnetic valve does not need to be controlled by triggering any switch, namely, swing of the portal frame can be reduced when the portal frame stops moving at any point in the whole stroke of front-back movement, and the safety of the portal frame is improved. And meanwhile, a spring is arranged in the buffer oil cylinder, so that the damping effect on the portal frame is obviously improved.
本发明公开了一种用于前移式叉车的门架缓冲系统,一种用于前移式叉车的门架缓冲系统,包括设置在车体上的油箱和油泵,所述油泵连通油箱且与马达传动连接,所述油泵出油口连通多路换向阀,所述多路换向阀连通前移油缸,所述多路换向阀和前移油缸的回油口连通油箱,还包括感应开关和电磁阀,所述感应开关设置在门架上,且与电磁阀电性连接。本发明通过设置缓冲油缸和在门架上设置感应开关,当门架升起时,就会触发感应开关,进而启动缓冲系统,具有节能降耗效果,无需触发任何开关来控制两位四通电磁阀,即在门架前后移动的全行程内任意一点停止运动,均可减低门架摆动,同时,缓冲油缸内置有弹簧,对门架所产生的阻尼效果明显提升。
Gantry buffering system for reach forklift
用于前移式叉车的门架缓冲系统
2022-12-20
Patent
Electronic Resource
Chinese
IPC: | F16F SPRINGS , Federn / 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 |
Forklift gantry hydraulic pipeline system and reach truck thereof
European Patent Office | 2021
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