INERTIAL BODY DRIVE SYSTEM
    1.
    发明申请
    INERTIAL BODY DRIVE SYSTEM 失效
    惯性身体驱动系统

    公开(公告)号:US20090235658A1

    公开(公告)日:2009-09-24

    申请号:US12092202

    申请日:2007-04-18

    IPC分类号: F15B13/04

    摘要: A pressure selector valve (13) is provided between a hydraulic motor (1) and a directional control valve (5) to connect one of the main conduits (4A), (4B) on a high pressure side to a high pressure conduit (14) while connecting the other of the main conduits on a low pressure side to a low pressure conduit (15). As an inertial body approaches a stop position, a spool valve (16) is switched to an open position (e), bringing a branch passage (14A) of the high pressure conduit (14) into communication with the low pressure conduit. When the pressure difference between the main conduits becomes small, the pressure selector valve is automatically returned to a neutral position to cut off communication between the main conduits, suppressing a reversing movement of the hydraulic motor so that an inertial body can be brought to a stop smoothly.

    摘要翻译: 压力选择阀(13)设置在液压马达(1)和方向控制阀(5)之间,以将高压侧的主管道(4A),(4B)中的一个连接到高压管道(14) ),同时将低压侧的另一个主管道连接到低压管道(15)。 当惯性体接近停止位置时,滑阀(16)被切换到打开位置(e),使得高压管道(14)的分支通道(14A)与低压管道连通。 当主导管之间的压差变小时,压力选择阀自动返回到中间位置以切断主管道之间的连通,从而抑制液压马达的反转运动,使得惯性体可以停止 顺利。

    Inertial body drive system
    2.
    发明授权
    Inertial body drive system 失效
    惯性身体驱动系统

    公开(公告)号:US07921642B2

    公开(公告)日:2011-04-12

    申请号:US12092202

    申请日:2007-04-18

    IPC分类号: F16D31/02

    摘要: A pressure selector valve (13) is provided between a hydraulic motor (1) and a directional control valve (5) to connect one of the main conduits (4A), (4B) on a high pressure side to a high pressure conduit (14) while connecting the other of the main conduits on a low pressure side to a low pressure conduit (15). As an inertial body approaches a stop position, a spool valve (16) is switched to an open position (e), bringing a branch passage (14A) of the high pressure conduit (14) into communication with the low pressure conduit. When the pressure difference between the main conduits becomes small, the pressure selector valve is automatically returned to a neutral position to cut off communication between the main conduits, suppressing a reversing movement of the hydraulic motor so that an inertial body can be brought to a stop smoothly.

    摘要翻译: 压力选择阀(13)设置在液压马达(1)和方向控制阀(5)之间,以将高压侧的主管道(4A),(4B)中的一个连接到高压管道(14) ),同时将低压侧的另一个主管道连接到低压管道(15)。 当惯性体接近停止位置时,滑阀(16)被切换到打开位置(e),使得高压管道(14)的分支通道(14A)与低压管道连通。 当主导管之间的压差变小时,压力选择阀自动返回到中间位置以切断主管道之间的连通,从而抑制液压马达的反转运动,使得惯性体可以停止 顺利。

    Hydraulic drive system
    3.
    发明授权
    Hydraulic drive system 失效
    液压驱动系统

    公开(公告)号:US5485724A

    公开(公告)日:1996-01-23

    申请号:US162142

    申请日:1993-12-14

    摘要: A hydraulic drive system comprises a check valve cb1 for detecting a pressure on the outlet side of a pressure compensating device VB1, a maximum load pressure detecting line SL1 for selecting higher one of the pressure detected by the check valve cb1 and a load pressure of an actuator associated with a hydraulic pump P1 and supplying it as a signal pressure, a check valve cb2 for detecting a pressure on the outlet side of a pressure compensating device VB2, a maximum load pressure detecting line SL2 for selecting higher one of the pressure detected by the check valve cb2 and a load pressure of an actuator associated with a hydraulic pump P2 and supplying it as a signal pressure independently of the maximum load pressure detecting line SL1, and a passage 300 for joining hydraulic fluids supplied from the hydraulic pumps P1, P2 and passing through variable restrictors RB1, RB2 with each other and supplying it to an actuator B. Mutual independence between the two hydraulic pumps P1, P2 can be thereby ensured.

    摘要翻译: PCT No.PCT / JP93 / 00677 Sec。 371日期1993年12月14日第 102(e)日期1993年12月14日PCT提交1993年5月21日PCT公布。 公开号WO93 / 24757 日期:1993年12月9日。液压驱动系统包括用于检测压力补偿装置VB1的出口侧的压力的止回阀cb1,用于选择由止回阀检测到的压力中的较高压力的最大负载压力检测线SL1 cb1和与液压泵P1相关联并将其作为信号压力供应的致动器的负载压力,用于检测压力补偿装置VB2的出口侧的压力的止回阀cb2,用于选择的最大负载压力检测线SL2 由止回阀cb2检测到的压力中的一个和与液压泵P2相关联的致动器的负载压力,并将其作为独立于最大负载压力检测线SL1的信号压力提供,以及用于连接供应的液压流体的通道300 从液压泵P1,P2中通过可变节流器RB1,RB2并将其供给到致动器B.两个水泵之间的相互独立性 从而可以确保制浆泵P1,P2。

    Hydraulic motor with brake device
    4.
    发明授权
    Hydraulic motor with brake device 有权
    液压马达带制动装置

    公开(公告)号:US06405835B1

    公开(公告)日:2002-06-18

    申请号:US09743062

    申请日:2001-01-04

    IPC分类号: F16D5536

    摘要: A hydraulic motor capable of minimizing a wear caused on a rotating brake disk of a brake device, wherein a rotating brake disk (32) which forms a plurality of arc-shaped grooves (17) apart from each other in circumferential direction and constitutes a brake device (31) is provided on the outer peripheral side of a cylinder block (15), and a plurality of arc-shaped projections (33) engaged with the arc-shaped grooves (17) and a plurality of radial contact parts (34) are provided on the inner peripheral side of the rotating brake disk (32) and the plurality of radial contact parts (34) are allowed to face the outer peripheral surface of the cylinder block (15) so that they can be brought into contact with each other, whereby, at the time of braking of the hydraulic motor (10), the movement of the rotating brake disk (32) in rotating direction is controlled by the arc-shaped projections (33) and the movement of the rotating brake disk (32) in radial direction is controlled by the radial contact parts (34).

    摘要翻译: 一种液压马达,其能够使制动装置的旋转制动盘的磨损最小化,其特征在于,在周向形成有多个弧形槽(17)的旋转制动盘(32)构成制动器 装置(31)设置在气缸体(15)的外周侧,并且与弧形槽(17)接合的多个弧形突起(33)和多个径向接触部分(34) 设置在旋转制动盘(32)的内周侧,并且允许多个径向接触部(34)面对气缸体(15)的外周面,使得它们能够与每个 另一方面,在液压马达(10)的制动时,旋转制动盘(32)沿旋转方向的移动由弧形突起(33)和旋转制动盘(31)的运动控制, 32)径向控制 接触部件(34)。

    Inertial body drive mechanism
    5.
    发明授权
    Inertial body drive mechanism 失效
    惯性体驱动机构

    公开(公告)号:US5419132A

    公开(公告)日:1995-05-30

    申请号:US190197

    申请日:1994-02-08

    摘要: An inertial body drive mechanism which is arranged to prevent a reversing motion of a hydraulic motor 1 after an inertial rotation and which is capable of stopping the hydraulic motor 1 quickly together with an inertial body. An oil chamber 26 of a reversing motion preventive valve 21 and an oil reservoir chamber 34 of an oil suction feeder 32 are communicated with each other through a tank conduit 27 with a throttle 38. Operating oil is supplied into and out of the oil chamber 26 by way of the oil reservoir chamber 34 of the oil suction feeder 32 in relation with displacement of a piston operating in response to oil pressure acting in a pilot chamber 33. When inertial rotation of the hydraulic motor 1 is once stopped, operating oil is supplied from the oil reservoir chamber 34 to the oil chamber 26 thereby sliding the reversing motion preventive valve 21 from a closed position (a) to an open position (b) to prevent reversing motions of the hydraulic motor 1.This application is a designated filing under 35 U.S.C. .sctn. 371 of PCT/JP93/00977 filed Jul. 14, 1993.

    摘要翻译: PCT No.PCT / JP93 / 00977 Sec。 371日期1994年2月8日 102(e)日期1994年2月8日PCT提交1993年7月14日PCT公布。 出版物WO94 / 01682 日本1990年1月20日。一种惯性体驱动机构,其被设置为防止液压马达1在惯性旋转之后的反转运动,并且能够与惯性体一起快速停止液压马达1。 反转防止阀21的油室26和吸油给料器32的储油室34通过具有节流阀38的油箱导管27彼此连通。操作油被供给到油室26内 相对于响应于在先导室33中的油压而起作用的活塞的位移,吸油给料器32的储油室34通过。当液压马达1的惯性旋转一度停止时,供给工作油 从储油室34到油室26,从而将反转防止阀21从关闭位置(a)滑动到打开位置(b),以防止液压马达1的反向运动。该应用是指定的归档 35 USC 1993年7月14日提交的PCT / JP93 / 00977的& Sect&371。

    Pressure compensating valve assembly
    6.
    发明授权
    Pressure compensating valve assembly 失效
    压力补偿阀总成

    公开(公告)号:US5333449A

    公开(公告)日:1994-08-02

    申请号:US39339

    申请日:1993-04-27

    摘要: A hydraulic drive system for construction machines with an improved pressure compensating valve assembly comprising a first directional control valve (3, 5, 7) of closed center type connected in series with a second directional control valve (12) of open center type. The valve assembly comprises an inlet chamber (31) connected to the hydraulic pump (1) and an outlet chamber (33) connected to the second directional control valve (12) of open center type; a flow control valve portion (14A) including a spool (37) having an opening (37a) disposed between the inlet chamber and the outlet chamber, an extent of the opening being changed when the spool is displaced, and a manually operable adjuster (39a) adapted to abut against the spool for setting the extent of the opening; a pressure compensating valve portion (14B) for holding a differential pressure across the extent of the opening (37a) constant; a spring (43) disposed in the flow control valve portion (14A) for urging the spool (37) in a direction to close the opening (37a); and an operating pressure introducing plug (44) to which an operating pressure is introduced for displacing the spool (37) against the spring (43) in a direction to open the opening until the spool (37) comes into abutment against the adjuster (39).

    摘要翻译: PCT No.PCT / JP92 / 01120 Sec。 371日期:1993年4月27日 102(e)日期1993年4月27日PCT 1991年9月2日PCT公布。 公开号WO93 / 05301 日本1993年3月18日。一种用于具有改进的压力补偿阀组件的建筑机械的液压驱动系统,包括与第二方向控制阀(12)串联连接的闭合中心型的第一方向控制阀(3,5,7) 的开放式中心型。 阀组件包括连接到液压泵(1)的入口室(31)和连接到开放式中心型的第二方向控制阀(12)的出口室(33) 流量控制阀部分(14A),其包括具有设置在入口室和出口室之间的开口(37a)的阀芯(37),当阀芯移位时开口的程度改变,以及手动操作的调节器 )适于抵靠所述线轴以设定所述开口的程度; 压力补偿阀部分(14B),用于保持开口(37a)的整个程度上的压差恒定; 设置在流量控制阀部分(14A)中的弹簧(43),用于沿着关闭开口(37a)的方向推动阀芯(37); 以及操作压力引入塞(44),其中引入操作压力以沿着打开所述开口的方向使所述卷轴(37)抵靠所述弹簧(43)移动,直到所述卷轴(37)抵靠所述调节器(39) )。