Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Electric control excavator hydraulic control system, electric control excavator and control method
The invention relates to the technical field of excavators, and discloses an electric control excavator hydraulic control system, an electric control excavator and a control method, a single variable pump is adopted, the number of pumps is reduced, and the cost is reduced; the working current of each pilot electromagnetic valve is adjusted through the electric control handle so as to adjust the opening degree of the pilot electromagnetic valve, meanwhile, the displacement of the variable pump is adjusted according to the maximum current value in the working current of all the pilot electromagnetic valves, the displacement of the variable pump can meet the actual working requirement, the response speed is high, and the operation cost is reduced. According to the flat ground control method for the electric control excavator, the relationship between the working current of the bucket rod recovery pilot electromagnetic valve and the working current of the movable arm lifting pilot electromagnetic valve during flat ground operation is obtained by searching the speed matching relationship between the bucket rod oil cylinder and the movable arm oil cylinder; the opening degree of the bucket rod recovery pilot electromagnetic valve and the opening degree of the bucket rod lifting pilot electromagnetic valve are adjusted through the relation in combination with the demand current of the movable arm and the demand current of the bucket rod, and therefore good leveling operability is obtained.
本发明涉及挖掘机技术领域，公开了一种电控挖掘机液压控制系统、电控挖掘机及控制方法，采用单个变量泵，减少了泵的数量，降低了成本；通过电控手柄调节每个先导电磁阀的工作电流以调节先导电磁阀的开度，同时根据所有先导电磁阀的工作电流中的最大电流值调节变量泵的排量，使变量泵的排量能够满足实际的工作需求，响应速度快，降低了运行成本。本发明提供的电控挖掘机平地控制方法，通过寻找斗杆油缸和动臂油缸之间的速度配合关系，得到平地作业时斗杆回收先导电磁阀和动臂提升先导电磁阀的工作电流之间的关系，通过该关系结合动臂需求电流和斗杆需求电流分别调节斗杆回收先导电磁阀和动臂提升先导电磁阀的开度，从而得到较好的平地操作性。
Electric control excavator hydraulic control system, electric control excavator and control method
The invention relates to the technical field of excavators, and discloses an electric control excavator hydraulic control system, an electric control excavator and a control method, a single variable pump is adopted, the number of pumps is reduced, and the cost is reduced; the working current of each pilot electromagnetic valve is adjusted through the electric control handle so as to adjust the opening degree of the pilot electromagnetic valve, meanwhile, the displacement of the variable pump is adjusted according to the maximum current value in the working current of all the pilot electromagnetic valves, the displacement of the variable pump can meet the actual working requirement, the response speed is high, and the operation cost is reduced. According to the flat ground control method for the electric control excavator, the relationship between the working current of the bucket rod recovery pilot electromagnetic valve and the working current of the movable arm lifting pilot electromagnetic valve during flat ground operation is obtained by searching the speed matching relationship between the bucket rod oil cylinder and the movable arm oil cylinder; the opening degree of the bucket rod recovery pilot electromagnetic valve and the opening degree of the bucket rod lifting pilot electromagnetic valve are adjusted through the relation in combination with the demand current of the movable arm and the demand current of the bucket rod, and therefore good leveling operability is obtained.
本发明涉及挖掘机技术领域，公开了一种电控挖掘机液压控制系统、电控挖掘机及控制方法，采用单个变量泵，减少了泵的数量，降低了成本；通过电控手柄调节每个先导电磁阀的工作电流以调节先导电磁阀的开度，同时根据所有先导电磁阀的工作电流中的最大电流值调节变量泵的排量，使变量泵的排量能够满足实际的工作需求，响应速度快，降低了运行成本。本发明提供的电控挖掘机平地控制方法，通过寻找斗杆油缸和动臂油缸之间的速度配合关系，得到平地作业时斗杆回收先导电磁阀和动臂提升先导电磁阀的工作电流之间的关系，通过该关系结合动臂需求电流和斗杆需求电流分别调节斗杆回收先导电磁阀和动臂提升先导电磁阀的开度，从而得到较好的平地操作性。
Electric control excavator hydraulic control system, electric control excavator and control method
电控挖掘机液压控制系统、电控挖掘机及控制方法
WANG ZELIN (Autor:in) / LI FEI (Autor:in) / LI YUJIANG (Autor:in) / YANG JUNLIN (Autor:in) / LIANG RONGGUI (Autor:in) / ZHAO JING (Autor:in)
14.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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