A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Control system of excavator hydraulic pump
The invention relates to the technical field of hydraulic pumps, in particular to a control system of an excavator hydraulic pump, comprising: an oil tank for storing hydraulic oil; the input end of the hydraulic pump is connected to the oil tank, the hydraulic pump is provided with two independent output pipelines, the output end of the first output pipeline and the output end of the second output pipeline are connected to a connector A and a connector B of the control valve through throttling valves respectively, and the throttling valves are used for controlling the flow flowing to the control valve from the first output pipeline or the second output pipeline. Power is provided for the hydraulic driving rod through the two liquid supply pipelines, the first oil cavity and the second oil cavity of the hydraulic driving rod communicate with the control valve through the two branches, the liquid return pipeline of the system is provided with the four input ends, the control valve can change different liquid supply and liquid return channels by changing the position of a valve element, the flexibility is high, and the control effect is good. And an adjustable one-way valve is arranged in one liquid return branch, so that the conduction state can be controlled according to the pressure of liquid supply or liquid return, and more requirements and control schemes can be realized.
本发明涉及液压泵技术领域，具体而言涉及挖掘机液压泵的控制系统，包括：油箱，用于储存液压油；液压泵，输入端连接到所述油箱，液压泵设有两个独立的输出管路，第一输出管路和第二输出管路的输出端通过节流阀分别连接到控制阀的A接口和B接口，所述节流阀用于控制第一输出管路或第二输出管路流向控制阀的流量。本申请通过两个供液管道为液压驱动杆提供动力，且液压驱动杆的第一油腔和第二油腔均通过两条支路与控制阀连通，系统的回液管路有四个输入端，控制阀可通过改变阀芯的位置改变不同的供液和回液通道，灵活性较高，在其中一个回液支路中设置可调的单向阀，能根据供液或回液的压力控制导通状态，以能实现更多的需求和控制方案。
Control system of excavator hydraulic pump
The invention relates to the technical field of hydraulic pumps, in particular to a control system of an excavator hydraulic pump, comprising: an oil tank for storing hydraulic oil; the input end of the hydraulic pump is connected to the oil tank, the hydraulic pump is provided with two independent output pipelines, the output end of the first output pipeline and the output end of the second output pipeline are connected to a connector A and a connector B of the control valve through throttling valves respectively, and the throttling valves are used for controlling the flow flowing to the control valve from the first output pipeline or the second output pipeline. Power is provided for the hydraulic driving rod through the two liquid supply pipelines, the first oil cavity and the second oil cavity of the hydraulic driving rod communicate with the control valve through the two branches, the liquid return pipeline of the system is provided with the four input ends, the control valve can change different liquid supply and liquid return channels by changing the position of a valve element, the flexibility is high, and the control effect is good. And an adjustable one-way valve is arranged in one liquid return branch, so that the conduction state can be controlled according to the pressure of liquid supply or liquid return, and more requirements and control schemes can be realized.
本发明涉及液压泵技术领域，具体而言涉及挖掘机液压泵的控制系统，包括：油箱，用于储存液压油；液压泵，输入端连接到所述油箱，液压泵设有两个独立的输出管路，第一输出管路和第二输出管路的输出端通过节流阀分别连接到控制阀的A接口和B接口，所述节流阀用于控制第一输出管路或第二输出管路流向控制阀的流量。本申请通过两个供液管道为液压驱动杆提供动力，且液压驱动杆的第一油腔和第二油腔均通过两条支路与控制阀连通，系统的回液管路有四个输入端，控制阀可通过改变阀芯的位置改变不同的供液和回液通道，灵活性较高，在其中一个回液支路中设置可调的单向阀，能根据供液或回液的压力控制导通状态，以能实现更多的需求和控制方案。
Control system of excavator hydraulic pump
挖掘机液压泵的控制系统
LI CHONGCHONG (author) / ZHANG FENG (author) / XU TINGFENG (author) / QIN LIZHI (author) / ZHANG GUIZHONG (author)
2024-08-16
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
| European Patent Office | 2022
Hydraulic excavator control system, hydraulic excavator and control method
| European Patent Office | 2023
Hydraulic control system, excavator hydraulic system control method and excavator
| European Patent Office | 2024
HYDRAULIC SYSTEM, HYDRAULIC EXCAVATOR, AND CONTROL METHOD FOR HYDRAULIC EXCAVATOR
| European Patent Office | 2023