Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Driving and recycling integrated excavator hydraulic system and excavator
The invention discloses a driving and recycling integrated excavator hydraulic system and an excavator. The driving and recycling integrated excavator hydraulic system comprises a first pump motor driven by a first motor, a second pump driven by a second motor and a third pump driven by a third motor. The first pump motor is connected with the first movable arm valve, and the first movable arm valve is connected with the movable arm cylinder. The second pump is respectively connected with a movable arm regeneration valve, a movable arm valve II, a bucket valve and a bucket rod valve II; the movable arm regeneration valve is connected with a rodless cavity of the movable arm cylinder; the movable arm second valve is connected with the movable arm cylinder; a rod cavity of the movable arm cylinder is connected with the oil tank through a one-way valve; the bucket valve is connected with the bucket cylinder; the second bucket rod valve is connected with the bucket rod cylinder; the third pump is connected with a first bucket rod valve, and the first bucket rod valve is connected with a bucket rod cylinder. Throttling loss caused by load difference in the composite action process of multiple actuators is eliminated, potential energy recovery in the descending process of the movable arm is achieved, meanwhile, stability and flexibility in the descending process of the movable arm are improved, and the air suction phenomenon can be avoided.
本发明公开了一种驱动回收一体化挖掘机液压系统及挖掘机，系统包括：由第一电机驱动的第一泵马达、由第二电机驱动的第二泵、由第三电机驱动的第三泵；第一泵马达与动臂一阀连接，动臂一阀与动臂缸连接；第二泵分别与动臂再生阀、动臂二阀、铲斗阀、斗杆二阀连接；动臂再生阀与动臂缸无杆腔连接；动臂二阀与动臂缸连接；动臂缸的有杆腔通过单向阀与油箱连接；铲斗阀与铲斗缸连接；斗杆二阀与斗杆缸连接；第三泵与斗杆一阀连接，斗杆一阀与斗杆缸连接。本发明消除了多执行器复合动作过程中载荷差异导致的节流损失，实现了动臂下降过程中的势能回收，同时，提高了动臂下降过程的稳定性和灵活性，并能避免吸空现象。
Driving and recycling integrated excavator hydraulic system and excavator
The invention discloses a driving and recycling integrated excavator hydraulic system and an excavator. The driving and recycling integrated excavator hydraulic system comprises a first pump motor driven by a first motor, a second pump driven by a second motor and a third pump driven by a third motor. The first pump motor is connected with the first movable arm valve, and the first movable arm valve is connected with the movable arm cylinder. The second pump is respectively connected with a movable arm regeneration valve, a movable arm valve II, a bucket valve and a bucket rod valve II; the movable arm regeneration valve is connected with a rodless cavity of the movable arm cylinder; the movable arm second valve is connected with the movable arm cylinder; a rod cavity of the movable arm cylinder is connected with the oil tank through a one-way valve; the bucket valve is connected with the bucket cylinder; the second bucket rod valve is connected with the bucket rod cylinder; the third pump is connected with a first bucket rod valve, and the first bucket rod valve is connected with a bucket rod cylinder. Throttling loss caused by load difference in the composite action process of multiple actuators is eliminated, potential energy recovery in the descending process of the movable arm is achieved, meanwhile, stability and flexibility in the descending process of the movable arm are improved, and the air suction phenomenon can be avoided.
本发明公开了一种驱动回收一体化挖掘机液压系统及挖掘机，系统包括：由第一电机驱动的第一泵马达、由第二电机驱动的第二泵、由第三电机驱动的第三泵；第一泵马达与动臂一阀连接，动臂一阀与动臂缸连接；第二泵分别与动臂再生阀、动臂二阀、铲斗阀、斗杆二阀连接；动臂再生阀与动臂缸无杆腔连接；动臂二阀与动臂缸连接；动臂缸的有杆腔通过单向阀与油箱连接；铲斗阀与铲斗缸连接；斗杆二阀与斗杆缸连接；第三泵与斗杆一阀连接，斗杆一阀与斗杆缸连接。本发明消除了多执行器复合动作过程中载荷差异导致的节流损失，实现了动臂下降过程中的势能回收，同时，提高了动臂下降过程的稳定性和灵活性，并能避免吸空现象。
Driving and recycling integrated excavator hydraulic system and excavator
一种驱动回收一体化挖掘机液压系统及挖掘机
XIAO GANG (Autor:in) / HUANG FEI (Autor:in) / WANG YUEXING (Autor:in)
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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