A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HYDRAULIC DRIVE DEVICE FOR OPERATING MACHINE
A hydraulic drive device is provided for which automatic control with high precision is possible regardless of the execution of a regeneration operation. The hydraulic drive device comprises: a boom flow rate control valve (36); an arm flow rate control valve (37); a regeneration control valve (43) having a variable regeneration rate in relation to an arm cylinder (27); a pump control device thatperforms a horsepower control; an orientation detection device (60); a boom flow rate control device (76, 100) that can switch between a normal control mode and an automatic control mode; and a regeneration control device (93, 100). The boom flow rate control device (76, 100) adjusts the boom flow rate so that an operation attachment moves along a target trajectory in the automatic control mode. The regeneration control device (93, 100) puts the regeneration control valve (43) in a regeneration position during low load periods, and in a regeneration cut position in high load periods, and reduces the regeneration rate during low load periods when the boom flow rate control device is switched to automatic control mode.
本发明提供一种不管是否执行再生动作也能以高精度进行自动控制的液压驱动装置。液压驱动装置包括：动臂流量控制阀(36)；斗杆流量控制阀(37)；对斗杆油缸(27)具有可变的再生率的再生控制阀(43)；进行马力控制的泵控制装置；姿势检测装置(60)；能够在通常控制模式与自动控制模式之间切换的动臂流量控制装置(76、100)；以及再生控制装置(93、100)。动臂流量控制装置(76、100)在自动控制模式下以使作业附属装置沿目标轨迹动作的方式调节动臂流量。再生控制装置(93、100)在低负荷时使再生控制阀(43)位于再生位置，在高负荷时位于再生切断位置，并且，在动臂流量控制装置被切换为自动控制模式时使低负荷时的再生率降低。
HYDRAULIC DRIVE DEVICE FOR OPERATING MACHINE
A hydraulic drive device is provided for which automatic control with high precision is possible regardless of the execution of a regeneration operation. The hydraulic drive device comprises: a boom flow rate control valve (36); an arm flow rate control valve (37); a regeneration control valve (43) having a variable regeneration rate in relation to an arm cylinder (27); a pump control device thatperforms a horsepower control; an orientation detection device (60); a boom flow rate control device (76, 100) that can switch between a normal control mode and an automatic control mode; and a regeneration control device (93, 100). The boom flow rate control device (76, 100) adjusts the boom flow rate so that an operation attachment moves along a target trajectory in the automatic control mode. The regeneration control device (93, 100) puts the regeneration control valve (43) in a regeneration position during low load periods, and in a regeneration cut position in high load periods, and reduces the regeneration rate during low load periods when the boom flow rate control device is switched to automatic control mode.
本发明提供一种不管是否执行再生动作也能以高精度进行自动控制的液压驱动装置。液压驱动装置包括：动臂流量控制阀(36)；斗杆流量控制阀(37)；对斗杆油缸(27)具有可变的再生率的再生控制阀(43)；进行马力控制的泵控制装置；姿势检测装置(60)；能够在通常控制模式与自动控制模式之间切换的动臂流量控制装置(76、100)；以及再生控制装置(93、100)。动臂流量控制装置(76、100)在自动控制模式下以使作业附属装置沿目标轨迹动作的方式调节动臂流量。再生控制装置(93、100)在低负荷时使再生控制阀(43)位于再生位置，在高负荷时位于再生切断位置，并且，在动臂流量控制装置被切换为自动控制模式时使低负荷时的再生率降低。
HYDRAULIC DRIVE DEVICE FOR OPERATING MACHINE
工程机械的液压驱动装置
MAEKAWA SATOSHI (author) / KAWAI HIROAKI (author) / KAMIMURA YUSUKE (author)
2020-12-18
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
HYDRAULIC DRIVE DEVICE OF ELECTRIC-POWERED HYDRAULIC OPERATING MACHINE
| European Patent Office | 2024