Hydraulic control circuit for operating a split actuator mechanical mechanism
    1.
    发明公开
    Hydraulic control circuit for operating a split actuator mechanical mechanism 审中-公开
    液压控制回路用于操作分体执行器机械机构

    公开(公告)号:EP1338802A3

    公开(公告)日:2003-10-15

    申请号:EP03250939.0

    申请日:2003-02-15

    IPC分类号: F15B11/05

    摘要: A system for simultaneously operating first and second hydraulic cylinders (14,16) has an inlet node for connection to a source of pressurized fluid (12) and an outlet node for connection to a tank (19). A two-position, three-way primary control valve (22) has a first port connected to the inlet node, a second port connected to the outlet node, and a common port. A first electrohydraulic proportional valve (32) connects the common port to a first port of the first cylinder (14), and a second electrohydraulic proportional valve (36) connects the common port to a first port of the second cylinder (16). A third electrohydraulic proportional valve (42) connects the inlet node to a second port of the first cylinder (14) and a second port of the second cylinder (16). A fourth electrohydraulic proportional valve (44) connects the tank (19) to a second port of the first cylinder (14) and to a second port of the second cylinder (16). Selectively operating the primary control valve and one of the third and fourth electrohydraulic proportional valves determines the direction in which the first and second cylinders move. Operation of the first and second electrohydraulic proportional valves meters hydraulic fluid to or from the first and second cylinders to control the rate of that movement.

    摘要翻译: 用于同时操作第一和第二液压缸(14,16)的系统具有用于连接到加压流体源(12)的入口节点和用于连接到箱(19)的出口节点。 两位三通主控制阀(22)具有连接到入口节点的第一端口,连接到出口节点的第二端口和公共端口。 第一电动液压比例阀(32)将公共端口连接到第一气缸(14)的第一端口,并且第二电动液压比例阀(36)将公共端口连接到第二气缸(16)的第一端口。 第三电动液压比例阀(42)将入口节点连接到第一气缸(14)的第二端口和第二气缸(16)的第二端口。 第四电动液压比例阀(44)将罐(19)连接到第一气缸(14)的第二端口和第二气缸(16)的第二端口。 选择性地操作主控制阀和第三和第四电动液压比例阀中的一个确定第一和第二气缸移动的方向。 第一和第二电动液压比例阀的操作对第一和第二汽缸的液压流体进行计量以控制该运动的速率。

    Hydraulic control circuit for operating a split actuator mechanical mechanism
    2.
    发明公开
    Hydraulic control circuit for operating a split actuator mechanical mechanism 审中-公开
    Hydraulische Steuereinrichtung zum Betreiben von zwei parallel angeordneten Aktuatoren

    公开(公告)号:EP1338802A2

    公开(公告)日:2003-08-27

    申请号:EP03250939.0

    申请日:2003-02-15

    IPC分类号: F15B11/05

    摘要: A system for simultaneously operating first and second hydraulic cylinders (14,16) has an inlet node for connection to a source of pressurized fluid (12) and an outlet node for connection to a tank (19). A two-position, three-way primary control valve (22) has a first port connected to the inlet node, a second port connected to the outlet node, and a common port. A first electrohydraulic proportional valve (32) connects the common port to a first port of the first cylinder (14), and a second electrohydraulic proportional valve (36) connects the common port to a first port of the second cylinder (16). A third electrohydraulic proportional valve (42) connects the inlet node to a second port of the first cylinder (14) and a second port of the second cylinder (16). A fourth electrohydraulic proportional valve (44) connects the tank (19) to a second port of the first cylinder (14) and to a second port of the second cylinder (16). Selectively operating the primary control valve and one of the third and fourth electrohydraulic proportional valves determines the direction in which the first and second cylinders move. Operation of the first and second electrohydraulic proportional valves meters hydraulic fluid to or from the first and second cylinders to control the rate of that movement.

    摘要翻译: 用于同时操作第一和第二液压缸(14,16)的系统具有用于连接到加压流体源(12)的入口节点和用于连接到罐(19)的出口节点。 两位三通主控制阀(22)具有连接到入口节点的第一端口,连接到出口节点的第二端口和公共端口。 第一电动比例阀(32)将公共端口连接到第一气缸(14)的第一端口,并且第二电动比例阀(36)将公共端口连接到第二气缸(16)的第一端口。 第三电动比例阀(42)将入口节点连接到第一气缸(14)的第二端口和第二气缸(16)的第二端口。 第四电液比例阀(44)将罐(19)连接到第一缸(14)的第二端口并连接到第二缸(16)的第二端口。 选择性地操作主控制阀,并且第三和第四电液比例阀中的一个确定第一和第二气缸移动的方向。 第一和第二电液比例阀的操作将液压流体计量到第一和第二气缸或从第一和第二气缸来控制该运动的速率。