The invention relates to a forklift steering control system which comprises a front axle steering mechanism, a rear axle steering mechanism, a mode switching valve set, a steering gear, an oil tank and a system controller. The front axle steering mechanism comprises a front steering oil cylinder, and the rear axle steering mechanism comprises a rear steering oil cylinder. The mode switching valve group is provided with a port P1 and a port T1 which are connected and communicated with the steering gear, a port P2 and a port T2 which are connected and communicated with the front steering oil cylinder, a port A1 and a port B1 which are connected and communicated with the rear steering oil cylinder, and a port A2 which is connected and communicated with an oil tank; the mode switching valve group comprises two two-position four-way electromagnetic reversing valves, a three-position four-way electromagnetic reversing valve, a bidirectional hydraulic lock and four two-position three-way hydraulic control reversing valves which are communicated through an oil path. The front-wheel steering system can be compatible with a conventional front-wheel steering system, three steering modes of front-wheel steering, four-wheel steering and crab-shaped walking are achieved, the front steering oil cylinder is a driving oil cylinder all the time, the rear steering oil cylinder is a driven oil cylinder all the time, and the rotating pressure of rear wheels can be guaranteed.
本发明涉及一种叉车转向控制系统,包括前桥转向机构、后桥转向机构、模式切换阀组、转向器、油箱和系统控制器;前桥转向机构包括前转向油缸,后桥转向机构包括后转向油缸;模式切换阀组设有与所述转向器连接相通的P1口和T1口、与所述前转向油缸连接相通的P2口和T2口、与后转向油缸连接相通的A1口和B1口、与油箱连接相通的A2口;模式切换阀组包括通过油路连通的两个二位四通电磁换向阀、一个三位四通电磁换向阀、一个双向液压锁和四个二位三通液控换向阀。其能够与常规前轮转向系统兼容,实现前轮转向、四轮转向和蟹形行走三种转向模式,并且前转向油缸始终为驱动油缸,后转向油缸始终为从动油缸,能够保证后轮转动的压力。
Forklift steering control system
一种叉车转向控制系统
2023-10-17
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge / 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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