A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an excavator distributed hydraulic driving system and an excavator. The system comprises a movable arm loop, a bucket rod-left walking loop and a bucket-right walking loop which are arranged in a distributed mode. The movable arm loop is used for driving a movable arm oil cylinder to extend or retract; the bucket rod-left walking loop is used for driving a bucket rod oil cylinder to extend or retract and driving a left walking motor to advance or retreat; and the bucket-right walking loop is used for driving the bucket oil cylinder to extend or retract and driving the right walking motor to advance or retreat. Distributed pump control flow regulation is adopted, all actuators of the composite action are completely decoupled, energy waste caused by valve control speed regulation and load coupling is eliminated, and the control freedom degree is high.
本发明公开了一种挖掘机分布式液压驱动系统及挖掘机，系统包括：采用分布式布置的动臂回路、斗杆‑左行走回路和铲斗‑右行走回路；所述动臂回路，用于驱动动臂油缸伸出或缩回；所述斗杆‑左行走回路，用于驱动斗杆油缸伸出或缩回、驱动左行走马达前进或后退；所述铲斗‑右行走回路，用于驱动铲斗油缸伸出或缩回、驱动右行走马达前进或后退。本发明采用分布式泵控流量调节，复合动作所有执行器完全解耦，消除了阀控调速与负载耦合造成的能量浪费，控制自由度高。
The invention discloses an excavator distributed hydraulic driving system and an excavator. The system comprises a movable arm loop, a bucket rod-left walking loop and a bucket-right walking loop which are arranged in a distributed mode. The movable arm loop is used for driving a movable arm oil cylinder to extend or retract; the bucket rod-left walking loop is used for driving a bucket rod oil cylinder to extend or retract and driving a left walking motor to advance or retreat; and the bucket-right walking loop is used for driving the bucket oil cylinder to extend or retract and driving the right walking motor to advance or retreat. Distributed pump control flow regulation is adopted, all actuators of the composite action are completely decoupled, energy waste caused by valve control speed regulation and load coupling is eliminated, and the control freedom degree is high.
本发明公开了一种挖掘机分布式液压驱动系统及挖掘机，系统包括：采用分布式布置的动臂回路、斗杆‑左行走回路和铲斗‑右行走回路；所述动臂回路，用于驱动动臂油缸伸出或缩回；所述斗杆‑左行走回路，用于驱动斗杆油缸伸出或缩回、驱动左行走马达前进或后退；所述铲斗‑右行走回路，用于驱动铲斗油缸伸出或缩回、驱动右行走马达前进或后退。本发明采用分布式泵控流量调节，复合动作所有执行器完全解耦，消除了阀控调速与负载耦合造成的能量浪费，控制自由度高。
Distributed hydraulic driving system of excavator and excavator
一种挖掘机分布式液压驱动系统及挖掘机
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Lifting hydraulic system of excavator driving cab and excavator
| European Patent Office | 2020