A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Excavator electro-hydraulic control system and method
The invention discloses an excavator electro-hydraulic control system and method, and relates to the technical field of excavator control. The excavator electro-hydraulic control system and method involves a variable driving device, an electro-hydraulic control device and an execution device; the electro-hydraulic control device comprises an oil return passage, at least one main pressure oil passage and multiple working oil port control units; the variable driving device is used for supplying liquid to the main pressure oil passages; an oil return control valve is arranged between the oil return passage and each main pressure oil passage; and oil inlets of the working oil port control units communicate with the main pressure oil passages, and the working oil port control units are used forcontrolling connection and disconnection of oil passages between the main pressure oil passages and the execution device and controlling connection and disconnection of an oil passage between the same load port of the execution device and the oil return passage. According to the excavator electro-hydraulic control system and method, the technical problems of complex structure, high cost and pooruniversality of an excavator hydraulic control system in the prior art are solved to a certain extent.
一种挖掘机电液控制系统及其方法，涉及挖掘机控制技术领域；该挖掘机电液控制系统及其方法包括变量驱动装置、电液控制装置和执行装置；电液控制装置包括回油道、至少一个主压力油道和多个工作油口控制单元；变量驱动装置用于供液给主压力油道；回油道与每个主压力油道之间设置有回油控制阀；工作油口控制单元的进油口与主压力油道连通，工作油口控制单元用于控制主压力油道与执行装置之间油路的通断，以及用于控制执行装置的同一负载口与回油道之间油路的通断。本发明的目的在于提供一种挖掘机电液控制系统及其方法，以在一定程度上解决现有技术中存在的挖掘机液压控制系统结构复杂、成本较高、通用性差的技术问题。
Excavator electro-hydraulic control system and method
The invention discloses an excavator electro-hydraulic control system and method, and relates to the technical field of excavator control. The excavator electro-hydraulic control system and method involves a variable driving device, an electro-hydraulic control device and an execution device; the electro-hydraulic control device comprises an oil return passage, at least one main pressure oil passage and multiple working oil port control units; the variable driving device is used for supplying liquid to the main pressure oil passages; an oil return control valve is arranged between the oil return passage and each main pressure oil passage; and oil inlets of the working oil port control units communicate with the main pressure oil passages, and the working oil port control units are used forcontrolling connection and disconnection of oil passages between the main pressure oil passages and the execution device and controlling connection and disconnection of an oil passage between the same load port of the execution device and the oil return passage. According to the excavator electro-hydraulic control system and method, the technical problems of complex structure, high cost and pooruniversality of an excavator hydraulic control system in the prior art are solved to a certain extent.
一种挖掘机电液控制系统及其方法，涉及挖掘机控制技术领域；该挖掘机电液控制系统及其方法包括变量驱动装置、电液控制装置和执行装置；电液控制装置包括回油道、至少一个主压力油道和多个工作油口控制单元；变量驱动装置用于供液给主压力油道；回油道与每个主压力油道之间设置有回油控制阀；工作油口控制单元的进油口与主压力油道连通，工作油口控制单元用于控制主压力油道与执行装置之间油路的通断，以及用于控制执行装置的同一负载口与回油道之间油路的通断。本发明的目的在于提供一种挖掘机电液控制系统及其方法，以在一定程度上解决现有技术中存在的挖掘机液压控制系统结构复杂、成本较高、通用性差的技术问题。
Excavator electro-hydraulic control system and method
挖掘机电液控制系统及其方法
LIU ZHEN (author) / MIAO GUOHUA (author) / LIU SHUQIANG (author) / LI QIANG (author) / LIU WEI (author) / FENG LIBO (author) / REN HONGTAO (author) / MA RUIPING (author)
2020-09-04
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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