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A platform for research: civil engineering, architecture and urbanism
Hydraulic driving system of excavator and excavator
The invention discloses an excavator hydraulic driving system and an excavator. The system is characterized in that an oil outlet of a first pump is connected with a movable arm control valve used for driving a movable arm oil cylinder through a first stop valve; an oil outlet of the first pump is connected with a left walking control valve used for driving a left walking motor. An oil outlet of the second pump is connected with a bucket rod control valve used for driving a bucket rod oil cylinder through a third stop valve. An oil outlet of the second pump is connected with a right walking control valve for driving a right walking motor; an oil outlet of the third pump is connected with a bucket control valve used for driving a bucket oil cylinder. The fourth motor is used for driving the rotary speed reducer. According to the invention, complete decoupling between the loading actuators is realized, energy waste caused by load coupling is eliminated, and the working efficiency is improved; meanwhile, loading and unloading are independently controlled, so that the controllability and the operation efficiency of the whole machine are improved, the structure of a hydraulic system is simplified, and the energy loss and the manufacturing cost are reduced; and each actuator is independently adjusted, so that the system debugging is convenient, and the flexibility and operation performance of the whole machine are improved.
本发明公开一种挖掘机液压驱动系统及挖掘机，系统包括：第一泵的出油口通过第一切断阀连接用于驱动动臂油缸的动臂控制阀；第一泵的出油口连接用于驱动左行走马达的左行走控制阀；第二泵的出油口通过第三切断阀连接用于驱动斗杆油缸的斗杆控制阀；第二泵的出油口连接用于驱动右行走马达的右行走控制阀；第三泵的出油口连接用于驱动铲斗油缸的铲斗控制阀；第四电机用于驱动回转减速机。本发明实现了上车执行器之间的完全解耦，消除了负载耦合造成的能量浪费，提高了作业效率；同时，上、下车独立控制，提高了整机操控性和作业效率，简化了液压系统结构，降低了能量损失和制造成本；各执行器独立调节，便于系统调试，提高了整机灵活性和作业性能。
Hydraulic driving system of excavator and excavator
The invention discloses an excavator hydraulic driving system and an excavator. The system is characterized in that an oil outlet of a first pump is connected with a movable arm control valve used for driving a movable arm oil cylinder through a first stop valve; an oil outlet of the first pump is connected with a left walking control valve used for driving a left walking motor. An oil outlet of the second pump is connected with a bucket rod control valve used for driving a bucket rod oil cylinder through a third stop valve. An oil outlet of the second pump is connected with a right walking control valve for driving a right walking motor; an oil outlet of the third pump is connected with a bucket control valve used for driving a bucket oil cylinder. The fourth motor is used for driving the rotary speed reducer. According to the invention, complete decoupling between the loading actuators is realized, energy waste caused by load coupling is eliminated, and the working efficiency is improved; meanwhile, loading and unloading are independently controlled, so that the controllability and the operation efficiency of the whole machine are improved, the structure of a hydraulic system is simplified, and the energy loss and the manufacturing cost are reduced; and each actuator is independently adjusted, so that the system debugging is convenient, and the flexibility and operation performance of the whole machine are improved.
本发明公开一种挖掘机液压驱动系统及挖掘机，系统包括：第一泵的出油口通过第一切断阀连接用于驱动动臂油缸的动臂控制阀；第一泵的出油口连接用于驱动左行走马达的左行走控制阀；第二泵的出油口通过第三切断阀连接用于驱动斗杆油缸的斗杆控制阀；第二泵的出油口连接用于驱动右行走马达的右行走控制阀；第三泵的出油口连接用于驱动铲斗油缸的铲斗控制阀；第四电机用于驱动回转减速机。本发明实现了上车执行器之间的完全解耦，消除了负载耦合造成的能量浪费，提高了作业效率；同时，上、下车独立控制，提高了整机操控性和作业效率，简化了液压系统结构，降低了能量损失和制造成本；各执行器独立调节，便于系统调试，提高了整机灵活性和作业性能。
Hydraulic driving system of excavator and excavator
一种挖掘机液压驱动系统及挖掘机
XU YANCUI (author) / WANG YUEXING (author) / HUANG FEI (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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