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    • 4. 发明申请
    • Hydraulic Control Device for Work Vehicle
    • 工作车液压控制装置
    • US20130047598A1
    • 2013-02-28
    • US13696537
    • 2011-05-06
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • F15B9/16
    • E02F9/2282E02F3/431E02F9/2207E02F9/2285E02F9/2296
    • A hydraulic control device for a work vehicle includes: a hydraulic pump that supplies pressure oil; an arm drive actuator that drives, with pressure oil supplied from the hydraulic pump, an arm attached to the work vehicle so as to swing the arm; a bucket drive actuator that drives, with pressure oil supplied from the hydraulic pump, a bucket attached to a front end of the arm, so as to swing the bucket; an arm drive pressure oil control valve that controls drive of the arm drive actuator by controlling pressure oil supplied from the hydraulic pump to the arm drive actuator; a bucket drive pressure oil control valve that controls drive of the bucket drive actuator by controlling pressure oil supplied from the hydraulic pump to the bucket drive actuator; an arm operation unit that controls the arm drive pressure oil control valve; a bucket operation unit that controls the bucket drive pressure oil control valve; an operating state detection unit that detects operating states of the arm drive actuator and the bucket drive actuator; and a flow control valve that restricts pressure oil to be supplied to the arm drive actuator as combined operation of the arm drive actuator and the bucket drive actuator is detected via the operating state detection unit.
    • 一种用于工作车辆的液压控制装置,包括:供给压力油的液压泵; 一个臂驱动执行机构,用液压泵供给的压力油驱动连接到作业车辆上的臂,使其摆动; 铲斗驱动致动器,其通过从所述液压泵供给的压力油驱动附接到所述臂的前端的铲斗,以使所述铲斗摆动; 臂驱动压力油控制阀,其通过控制从液压泵供给到臂驱动致动器的压力油来控制臂驱动致动器的驱动; 铲斗驱动压力油控制阀,其通过控制从液压泵供给到铲斗驱动致动器的压力油来控制铲斗驱动致动器的驱动; 手臂操作单元,其控制臂驱动压力油控制阀; 铲斗操作单元,其控制铲斗驱动压力油控制阀; 操作状态检测单元,其检测臂驱动致动器和铲斗驱动致动器的操作状态; 以及流量控制阀,其通过操作状态检测单元检测到臂驱动致动器和铲斗驱动致动器的组合操作,从而限制供给到臂驱动致动器的压力油。
    • 6. 发明授权
    • Hydraulic control device for work vehicle
    • 工作车液压控制装置
    • US09340955B2
    • 2016-05-17
    • US13696537
    • 2011-05-06
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • Atsushi ShimazuHiroyuki AzumaKazuo ChounanYasunori Miyamoto
    • F15B13/16E02F9/22E02F3/43
    • E02F9/2282E02F3/431E02F9/2207E02F9/2285E02F9/2296
    • A hydraulic control device for a work vehicle includes: a hydraulic pump that supplies pressure oil; an arm drive actuator that drives, with pressure oil supplied from the hydraulic pump, an arm attached to the work vehicle so as to swing the arm; a bucket drive actuator that drives, with pressure oil supplied from the hydraulic pump, a bucket attached to a front end of the arm, so as to swing the bucket; an arm drive pressure oil control valve that controls drive of the arm drive actuator by controlling pressure oil supplied from the hydraulic pump to the arm drive actuator; a bucket drive pressure oil control valve that controls drive of the bucket drive actuator by controlling pressure oil supplied from the hydraulic pump to the bucket drive actuator; an arm operation unit that controls the arm drive pressure oil control valve; a bucket operation unit that controls the bucket drive pressure oil control valve; an operating state detection unit that detects operating states of the arm drive actuator and the bucket drive actuator; and a flow control valve that restricts pressure oil to be supplied to the arm drive actuator as combined operation of the arm drive actuator and the bucket drive actuator is detected via the operating state detection unit.
    • 一种用于工作车辆的液压控制装置,包括:供给压力油的液压泵; 一个臂驱动执行机构,用液压泵供给的压力油驱动连接到作业车辆上的臂,使其摆动; 铲斗驱动致动器,其通过从所述液压泵供给的压力油驱动附接到所述臂的前端的铲斗,以使所述铲斗摆动; 臂驱动压力油控制阀,其通过控制从液压泵供给到臂驱动致动器的压力油来控制臂驱动致动器的驱动; 铲斗驱动压力油控制阀,其通过控制从液压泵供给到铲斗驱动致动器的压力油来控制铲斗驱动致动器的驱动; 手臂操作单元,其控制臂驱动压力油控制阀; 铲斗操作单元,其控制铲斗驱动压力油控制阀; 操作状态检测单元,其检测臂驱动致动器和铲斗驱动致动器的操作状态; 以及流量控制阀,其通过操作状态检测单元检测到臂驱动致动器和铲斗驱动致动器的组合操作,从而限制供给到臂驱动致动器的压力油。