The hydraulic control system comprises an oil tank, an oil pump, a multi-way valve, a left pallet fork oil cylinder, a right pallet fork oil cylinder, a synchronous flow distributing and collecting valve, a first electromagnetic directional valve, a second electromagnetic directional valve, a third electromagnetic directional valve and a fourth electromagnetic directional valve. The multi-way valve comprises an accessory reversing valve plate and a safety valve, oil inlets of the accessory reversing valve plate and the safety valve are both communicated with an oil inlet P of the multi-way valve, and oil outlets of the accessory reversing valve plate and the safety valve are both communicated with an oil return port T of the multi-way valve. And the oil inlet P is communicated with the oil return port T through a middle-position oil duct of the accessory reversing valve plate. The double-fork lateral moving function, the double-fork synchronous distance adjusting function and the single-fork independent moving distance adjusting function can be achieved, and the system is simple in structure, comprehensive in function and convenient to operate.
本发明涉及一种多功能叉车属具液压控制系统,包括油箱、油泵、多路阀、左货叉油缸、右货叉油缸、同步分流集流阀、电磁换向阀一、电磁换向阀二、电磁换向阀三以及电磁换向阀四。多路阀包括一个属具换向阀片和一个安全阀,属具换向阀片、安全阀的进油口均与多路阀的进油口P连通且属具换向阀片、安全阀的出油口均与多路阀的回油口T连通,当属具换向阀片处于中位时,进油口P通过属具换向阀片的中位油道与回油口T连通。本发明能够实现双货叉侧移功能、双货叉同步调距功能以及单货叉单独移动调距功能,系统结构简洁,功能全面,操作方便。
Multifunctional forklift attachment hydraulic control system and control method and forklift
一种多功能叉车属具液压控制系统及控制方法和叉车
2023-12-12
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 / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
Forklift attachment hydraulic system and control method thereof
European Patent Office | 2024
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