Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Electric loader hydraulic system and electric loader
According to the electric loader hydraulic system and the electric loader, in the system, a working pump drives a movable arm oil cylinder and a bucket oil cylinder through a distribution valve, a steering pump drives a steering oil cylinder through a flow amplification valve, and an oil port PF of the flow amplification valve is connected with an outlet of the working pump; an outlet of the pilot oil source valve is connected with an inlet of the steering gear; the controller is used for collecting pilot pressure of each control port of the distribution valve, outlet pressure of the working pump and rotation angular velocity of the steering gear, matching the displacement of the working pump with the rotation speed of the working pump hydraulic motor, and matching the opening degree of the handle with the displacement of the working pump and the rotation speed of the working pump hydraulic motor; the rotating angular speed of the steering gear is matched with the displacement of the steering pump and the rotating speed of the hydraulic motor of the steering pump, so that positive flow control of the hydraulic system is achieved, meanwhile, it is guaranteed that the hydraulic motor of the working pump, the hydraulic motor of the steering pump, the working pump and the steering pump always run in a high-efficiency interval, energy loss is reduced, and the energy-saving effect of the electric loader is achieved.
本发明公开一种电动装载机液压系统及电动装载机，系统中工作泵通过分配阀驱动动臂油缸和铲斗油缸，转向泵通过流量放大阀驱动转向油缸，流量放大阀的油口PF连接工作泵的出口；先导油源阀的出口连接转向器的进口；控制器采集分配阀各控制端口的先导压力、工作泵的出口压力、转向器的转动角速度，并将工作泵的排量与工作泵液压电机的转速相匹配，将手柄开度与工作泵的排量及工作泵液压电机的转速相匹配，将转向器的转动角速度与转向泵的排量及转向泵液压电机的转速相匹配，用于实现液压系统的正流量控制，同时保证工作泵液压电机、转向泵液压电机、工作泵和转向泵始终运行于高效区间，减小能量损失，实现电动装载机的节能效果。
Electric loader hydraulic system and electric loader
According to the electric loader hydraulic system and the electric loader, in the system, a working pump drives a movable arm oil cylinder and a bucket oil cylinder through a distribution valve, a steering pump drives a steering oil cylinder through a flow amplification valve, and an oil port PF of the flow amplification valve is connected with an outlet of the working pump; an outlet of the pilot oil source valve is connected with an inlet of the steering gear; the controller is used for collecting pilot pressure of each control port of the distribution valve, outlet pressure of the working pump and rotation angular velocity of the steering gear, matching the displacement of the working pump with the rotation speed of the working pump hydraulic motor, and matching the opening degree of the handle with the displacement of the working pump and the rotation speed of the working pump hydraulic motor; the rotating angular speed of the steering gear is matched with the displacement of the steering pump and the rotating speed of the hydraulic motor of the steering pump, so that positive flow control of the hydraulic system is achieved, meanwhile, it is guaranteed that the hydraulic motor of the working pump, the hydraulic motor of the steering pump, the working pump and the steering pump always run in a high-efficiency interval, energy loss is reduced, and the energy-saving effect of the electric loader is achieved.
本发明公开一种电动装载机液压系统及电动装载机，系统中工作泵通过分配阀驱动动臂油缸和铲斗油缸，转向泵通过流量放大阀驱动转向油缸，流量放大阀的油口PF连接工作泵的出口；先导油源阀的出口连接转向器的进口；控制器采集分配阀各控制端口的先导压力、工作泵的出口压力、转向器的转动角速度，并将工作泵的排量与工作泵液压电机的转速相匹配，将手柄开度与工作泵的排量及工作泵液压电机的转速相匹配，将转向器的转动角速度与转向泵的排量及转向泵液压电机的转速相匹配，用于实现液压系统的正流量控制，同时保证工作泵液压电机、转向泵液压电机、工作泵和转向泵始终运行于高效区间，减小能量损失，实现电动装载机的节能效果。
Electric loader hydraulic system and electric loader
一种电动装载机液压系统及电动装载机
ZHANG JINGXIAN (Autor:in) / SUN ZHIYUAN (Autor:in) / MA PENGPENG (Autor:in) / ZHANG ANMIN (Autor:in) / QIAO ZHANZHAN (Autor:in) / ZHAO MEI (Autor:in) / SONG JIA (Autor:in) / ZHOU ZHONGLIANG (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
Positive flow hydraulic system of pure electric loader and pure electric loader
| Europäisches Patentamt | 2024