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A platform for research: civil engineering, architecture and urbanism
Hydraulic system, construction machine, hydraulic control method, and computer storage medium
The invention provides a hydraulic system, a construction machine, a hydraulic control method, and a computer storage medium. The hydraulic system of the present invention returns working oil discharged from an actuator to the tank via an oil cooler. The hydraulic system includes: a throttle; a flow path that connects the throttle and the tank via an oil cooler; a discharge flow path that connects the throttle and the tank; and a switching valve that switches the flow direction of the working oil according to the negative control pressure generated by the throttle. When the negative control pressure generated by the throttle is equal to or higher than the reference, the switching valve causes the hydraulic fluid to flow through the flow path. When the negative control pressure is less than the reference, the switching valve blocks the inflow of hydraulic fluid from the throttle to the flow path, and allows the hydraulic fluid to circulate to the drain flow path.
本发明提供一种液压系统、施工机械、液压控制方法、以及计算机存储介质。本发明的液压系统使从致动器排出来的工作油经由油冷却器返回罐，在该液压系统中，具备：节流件；流路，其经由油冷却器使节流件和罐之间连接；排放流路，其连接节流件和罐；以及切换阀，其根据由节流件产生的负控制压力切换工作油的流通方向。在由节流件产生的负控制压力是基准以上的情况下，切换阀使工作油向流路流通。在负控制压力小于基准的情况下，切换阀阻断工作油从节流件向流路的流入，并且，使工作油向排放流路流通。
Hydraulic system, construction machine, hydraulic control method, and computer storage medium
The invention provides a hydraulic system, a construction machine, a hydraulic control method, and a computer storage medium. The hydraulic system of the present invention returns working oil discharged from an actuator to the tank via an oil cooler. The hydraulic system includes: a throttle; a flow path that connects the throttle and the tank via an oil cooler; a discharge flow path that connects the throttle and the tank; and a switching valve that switches the flow direction of the working oil according to the negative control pressure generated by the throttle. When the negative control pressure generated by the throttle is equal to or higher than the reference, the switching valve causes the hydraulic fluid to flow through the flow path. When the negative control pressure is less than the reference, the switching valve blocks the inflow of hydraulic fluid from the throttle to the flow path, and allows the hydraulic fluid to circulate to the drain flow path.
本发明提供一种液压系统、施工机械、液压控制方法、以及计算机存储介质。本发明的液压系统使从致动器排出来的工作油经由油冷却器返回罐，在该液压系统中，具备：节流件；流路，其经由油冷却器使节流件和罐之间连接；排放流路，其连接节流件和罐；以及切换阀，其根据由节流件产生的负控制压力切换工作油的流通方向。在由节流件产生的负控制压力是基准以上的情况下，切换阀使工作油向流路流通。在负控制压力小于基准的情况下，切换阀阻断工作油从节流件向流路的流入，并且，使工作油向排放流路流通。
Hydraulic system, construction machine, hydraulic control method, and computer storage medium
液压系统、施工机械、液压控制方法以及计算机存储介质
IWASAKI HITOSHI (author) / GOTO KEISUKE (author)
2021-04-16
Patent
Electronic Resource
Chinese
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