A hydraulic system (1) is provided with: a variable displacement steering pump (21) that supplies a hydraulic fluid to a steering actuator (11); a variable capacity type loading/unloading pump (31) for supplying the operating fluid to the at least one loading/unloading actuator (12); a converging line (71) branched from the diverting supply line (22) and connected to the loading/unloading supply line (32); and a priority valve (72) provided in the merging line (71). The hydraulic system (1) is further provided with: a loading/unloading regulator (5) that inputs a loading/unloading request command pressure and that increases the capacity of the loading/unloading pump (31) as the loading/unloading request command pressure increases; and a steering regulator (4) in which the higher one of the steering request command pressure and the loading/unloading request command pressure is input as a signal pressure, and the capacity of the steering pump (21) increases as the signal pressure increases.
液压系统(1)包括:向转向致动器(11)供给工作液的可变容量型的转向泵(21);向至少一个装卸致动器(12)供给工作液的可变容量型的装卸泵(31);从转向供给线路(22)分支并与装卸供给线路(32)相连的合流线路(71);和设于合流线路(71)的优先阀(72)。此外,液压系统(1)包括:输入装卸要求指令压且装卸要求指令压越大则装卸泵(31)的容量越增加的装卸调节器(5);和转向要求指令压和装卸要求指令压中较高的一方作为信号压输入,且所述信号压越大则转向泵(21)的容量越增加的转向调节器(4)。
Hydraulic system of industrial vehicle
工业车辆的液压系统
17.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | E02F Baggern , DREDGING / 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 / B62D MOTOR VEHICLES , Motorfahrzeuge |