PILOT CONTROL MECHANISM FOR BOOM BOUNCE REDUCTION
    1.
    发明申请
    PILOT CONTROL MECHANISM FOR BOOM BOUNCE REDUCTION 审中-公开
    用于汽车减速的试点控制机制

    公开(公告)号:WO2015073329A1

    公开(公告)日:2015-05-21

    申请号:PCT/US2014/064646

    申请日:2014-11-07

    Abstract: A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and first and second blocking valves (350, 450). A net load (90) is supported by a first chamber (116, 118) of the hydraulic actuator, and a second chamber (118, 116) of the hydraulic actuator may receive fluctuating hydraulic fluid flow from the second control valve to produce a vibratory response (950) that counters environmental vibrations (960) on the boom. The first blocking valve prevents the fluctuating hydraulic fluid flow from opening the first counter-balance valve. The first blocking valve may drain leakage from the first counter-balance valve.

    Abstract translation: 在提供平衡阀保护的同时提供悬臂(30)的起重臂动力学的液压系统(600)和方法包括液压致动器(110),第一和第二平衡阀(300,400),第一和第二平衡阀 第二控制阀(700,800)以及第一和第二阻塞阀(350,450)。 净负载(90)由液压致动器的第一腔室(116,118)支撑,并且液压致动器的第二腔室(118,116)可接收来自第二控制阀的波动的液压流体流动以产生振动 响应(950),用于对吊臂上的环境振动(960)进行计数。 第一阻塞阀防止波动的液压流体流动打开第一平衡阀。 第一阻塞阀可以从第一平衡阀泄漏泄漏。

    HYDRAULIC SYSTEM AND METHOD FOR REDUCING BOOM BOUNCE WITH COUNTER-BALANCE PROTECTION
    2.
    发明申请
    HYDRAULIC SYSTEM AND METHOD FOR REDUCING BOOM BOUNCE WITH COUNTER-BALANCE PROTECTION 审中-公开
    液压系统和减少反应堆平衡保护的方法

    公开(公告)号:WO2014193649A1

    公开(公告)日:2014-12-04

    申请号:PCT/US2014/037879

    申请日:2014-05-13

    Abstract: A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic cylinder (110), first and second counter-balance valves (300, 400), first and second control valves (700, 800), and a selection valve set (850). The selection valve set is adapted to self-configure to a first configuration and to a second configuration when a net load (90) is supported by a first chamber (116, 118) and a second chamber (118, 116) of the hydraulic cylinder, respectively. When the selection valve set is enabled in the first and second configurations, the second and first control valve may fluctuate hydraulic fluid flow to the second and first chamber, respectively, to produce a vibratory response (950) that counters environmental vibrations (960) of the boom. When the selection valve set is not enabled, the first and second counter-balance valves are adapted to provide the hydraulic cylinder with conventional counter-balance valve protection.

    Abstract translation: 在提供平衡阀保护的同时提供悬臂(30)的起重臂动力学的液压系统(600)和方法包括液压缸(110),第一和第二平衡阀(300,400),第一和第二平衡阀 第二控制阀(700,800)和选择阀组(850)。 当净负载(90)由液压缸的第一室(116,118)和第二室(118,116)支撑时,选择阀组适于自配置为第一构型和第二构造 , 分别。 当在第一和第二构造中使能选择阀组时,第二和第一控制阀可以分别使流体流动到第二和第二腔室,以产生振荡响应(950),该振动响应(950)将环境振动(960) 繁荣。 当选择阀组未启用时,第一和第二平衡阀适于为液压缸提供常规的反平衡阀保护。

    油圧駆動システム
    3.
    发明申请
    油圧駆動システム 审中-公开
    液压驱动系统

    公开(公告)号:WO2014061407A1

    公开(公告)日:2014-04-24

    申请号:PCT/JP2013/075792

    申请日:2013-09-25

    Abstract:  作動油流路は、第1流路と第2流路とを有する。第1流路は、第1ポンプポートと油圧シリンダの第1室とを接続する。第2流路は、第2ポンプポートと油圧シリンダの第2室とを接続する。作動油流路は、油圧ポンプと油圧シリンダとの間で閉回路を構成する。ブリードオフ流路は、第2流路から作動油の一部をブリードオフさせるための流路である。作業機を下降させるための操作部材の操作量が所定操作量より小さいときには、制御弁は、第2流路の油圧がリリーフ圧より小さい圧力に抑えられるように、絞りを介して第2流路をブリードオフ流路に接続する。所定操作量は、作業機を下降させるための操作部材の最大操作量以下である。

    Abstract translation: 液压油流路具有第一流路和第二流路。 第一流路连接液压缸的第一泵口和第一室。 第二流路连接液压缸的第二泵口和第二室。 液压油流路构成液压泵与液压缸之间的闭合回路。 泄放流动路径是用于从第二流动路径排出一些液压油的流动路径。 当操作用于降低作业机器的操作构件的量小于规定的操作量时,控制阀经由孔将第二流路连接到排出流路,使得第二流路的液压 流路被抑制到低于安全压力的压力。 规定的操作量不大于用于降低作业机器的操作构件的最大操作量。

    HYDROSTATIC DRIVE SYSTEM
    4.
    发明申请
    HYDROSTATIC DRIVE SYSTEM 审中-公开
    静液压驱动系统

    公开(公告)号:WO2009103412A1

    公开(公告)日:2009-08-27

    申请号:PCT/EP2009000688

    申请日:2009-02-03

    Abstract: The invention relates to a hydrostatic drive system having a pump (1) and at least one consumer (6) that can be connected alternately to the pump (1) and a tank (3) by means of a directional control valve (4) that can be actuated by control signals (15, 16), in order to control the motion of a positive or a negative load (9) at the consumer (6). A counterbalance valve (5, 51, 60) is thereby disposed in the line (13) leading through the directional control valve (4) to the tank (3) of the negative connection of the consumer, wherein said counterbalance valve can be placed under a pressure that can be controlled by a programmable logic unit (31) when controlling a positive load.

    Abstract translation: 本发明涉及一种包括泵的静液压驱动系统(1)和至少一个消费者(6),通过一个控制信号(15,16)可致动方向控制阀的装置(4)交替地与所述泵(1)和容器(3)在连接 是接合,以对消费者(6)控制的正或负的负载(9)的移动。 这里,提供的是,在通过方向控制阀(4)连接到容器(3)导通消费者,偏压阀(5,51,60)的负极端子的线(13)布置,其在通过下方的控制正负载 可设置的可编程逻辑单元控制(31)的压力。

    FORESTRY MACHINE WITH HYDRAULIC SYSTEM AND METHOD FOR ROTOR BRAKING
    5.
    发明申请
    FORESTRY MACHINE WITH HYDRAULIC SYSTEM AND METHOD FOR ROTOR BRAKING 审中-公开
    具有液压系统的林业机械和用于转子制动的方法

    公开(公告)号:WO2006014337A4

    公开(公告)日:2009-02-26

    申请号:PCT/US2005023443

    申请日:2005-06-30

    Abstract: Embodiments relate to braking high-speed rotational cutting equipment. In particular, some embodiments relate to forestry machinery having a cutting or mower apparatus, and further having a hydraulic brake. The brake includes a counterbalance valve which pressurizes fluid at the motor outlet to a predetermined level when flow of hydraulic fluid from a pump to a motor is discontinued. The hydraulic brake may include a restrictor orifice to reduce sudden pressure increases on the motor. The predetermined pressure level may be between about 2000 psi and about 4000 psi and the orifice may have a diameter of between about 0.025 and 0.040 inches. The counterbalance vent port can hydraulically connect to the motor case line. An anti-cavitation valve can be at the counterbalance valve port can supply fluid to the motor inlet after the flow from the pump discontinues. Additional embodiments include related hydraulic control systems and methods.

    Abstract translation: 实施例涉及制动高速旋转切割设备。 特别地,一些实施例涉及具有切割或割草机设备并且还具有液压制动器的林业机械。 制动器包括平衡阀,当液压流体从泵到电动机的流动停止时,该平衡阀将电动机出口处的流体加压至预定水平。 液压制动器可以包括限流器孔口以减少马达上突然的压力增加。 预定的压力水平可以在约2000psi和约4000psi之间,并且孔可以具有在约0.025和0.040英寸之间的直径。 平衡排气口可液压连接到电机壳体管路。 在泵的流量停止之后,平衡阀端口上的防空化阀可以向马达入口供应流体。 其他实施例包括相关的液压控制系统和方法。

    CONTROL VALVE FOR A PNEUMATIC CYLINDER
    7.
    发明申请
    CONTROL VALVE FOR A PNEUMATIC CYLINDER 审中-公开
    气动缸控制阀

    公开(公告)号:WO2004072487A1

    公开(公告)日:2004-08-26

    申请号:PCT/GB2004/000536

    申请日:2004-02-12

    Applicant: WARD, Allan

    Inventor: WARD, Allan

    Abstract: The present invention includes a control valve (10) for a pneumatic cylinder (12) having a piston (18), a first chamber (20) to be pressurised to effect a forward stroke of the piston and a second oppositely acting chamber (22) to be pressurised to effect a return stroke of the piston (18). The control valve (10) comprises a valve block (36) connectable to the second chamber (22), and has a valve spool (48) moveable axially therein. The control valve (10) also comprises a first conduit (38) through the block (36) and in fluid communication with the second chamber (22) of the cylinder (12) when attached thereto, where the first conduit (38) includes an axial passage through the spool (48) and is controlled by valve surfaces of the valve block (36) and spool (48). A pressure surface (56) of the spool (48) through which the axial passage passes is exposed to pressure fluid in the first conduit (38) such that pressure applied to the pressure surface (56) biasses the valve spool (48) in a first axial direction to maintain the first conduit (38) closed. The control valve (10) also comprises means for returning the spool in an opposite axial direction to open the first conduit (38), and a restricted bleed conduit (40) by­passing the first conduit (38). By providing the valve spool (48) with an axial passage it is possible easily to tune (adjust) the area of the pressure surface (56) of the spool (48) for a particular cylinder by suitably selecting the size of the axial passage: for a given valve spool, the larger the passage, the smaller the area of the pressure surface, and thereby the return pressure at which the valve opens can be selected.

    Abstract translation: 本发明包括具有活塞(18)的气动缸(12)的控制阀(10),被加压以实现活塞向前行程的第一室(20)和第二相对作用室(22), 被加压以实现活塞(18)的返回行程。 控制阀(10)包括可连接到第二室(22)的阀块(36),并且具有可在其中轴向移动的阀芯(48)。 控制阀(10)还包括通过该块(36)的第一导管(38)并与其连接的气缸(12)的第二腔室(22)流体连通,其中第一导管(38)包括 通过阀芯(48)的轴向通过并且由阀块(36)和阀芯(48)的阀表面控制。 轴向通道穿过的卷轴(48)的压力表面(56)暴露于第一导管(38)中的压力流体,使得施加到压力表面(56)的压力将阀芯(48)在一个 第一轴向保持第一导管(38)关闭。 控制阀(10)还包括用于沿相反的轴向返回阀芯以打开第一管道(38)的装置和绕过第一管道(38)的限制排放导管(40)。 通过为阀芯(48)提供轴向通道,可以通过适当地选择轴向通道的尺寸来容易地调整(调整)用于特定气缸的阀芯(48)的压力表面(56)的面积: 对于给定的阀芯,通道越大,压力表面的面积越小,从而可以选择阀打开的​​返回压力。

    HYDRAULIC CIRCUIT FOR WORKING MACHINES
    8.
    发明申请
    HYDRAULIC CIRCUIT FOR WORKING MACHINES 审中-公开
    液压电路用于工作机械

    公开(公告)号:WO01096748A1

    公开(公告)日:2001-12-20

    申请号:PCT/JP2001/001231

    申请日:2001-02-21

    Abstract: A hydraulic circuit for construction machines which, in order to prevent a vacuum phenomenon which occurs in the hydraulic pressure chambers of hydraulic actuators, such as hydraulic cylinders and hydraulic motors, is provided with a back pressure regulating valve in an oil passage for returning oil to an oil tank from a direction switching valve, with a make-up means to feed the upstream working fluid to the hydraulic pressure chamber, wherein problems such as increased loss of hydraulic horse power and decreased output from the hydraulic actuator, caused by increase in the back pressure in the return oil passage, are eliminated. A make-up hydraulic source feeding compressed hydraulic fluid to the make-up hydraulic passage connected to the hydraulic chamber is provided in other than the return passage to the oil tank, and the back pressure regulating valve in the return oil passage is omitted.

    Abstract translation: 一种用于施工机械的液压回路,为了防止在诸如液压缸和液压马达的液压致动器的液压室中发生的真空现象,在用于将油返回到油的油路中设置有背压调节阀 来自方向切换阀的油箱,具有将上游工作流体输送到液压室的补充装置,其中诸如增加液压马达的损失增加和液压致动器的输出减少引起的问题 返回油路的背压消除。 除了通向油箱的返回通道之外,还设置了将压缩液压油供给到与油压室连接的补充液压路径的补给液压源,省略了返回油路中的背压调节阀。

    DRIVING DEVICE FOR A HYDRAULIC MOTOR
    9.
    发明申请
    DRIVING DEVICE FOR A HYDRAULIC MOTOR 审中-公开
    液压马达驱动装置

    公开(公告)号:WO1996030651A1

    公开(公告)日:1996-10-03

    申请号:PCT/JP1996000764

    申请日:1996-03-22

    Inventor: KOMATSU LTD.

    Abstract: A driving device for a hydraulic motor comprising a directional control valve (21) for supplying pressure oil discharged from a hydraulic pump (20) to a first port (25) or a second port (26) of a hydraulic motor (24) and returning oil returning from the second port or the first port to a tank (27) and a pilot pressure supplying valve (40) for controlling the directional control valve (21) wherein the directional control valve is of a pilot pressure selection type in which the valve is positioned, respectively, at a neutral position A by means of springs (32, 33), at a first position B by virtue of a pressure to a first pressure receiving portion (34), and at a second position C by virtue of a pressure to a second pressure receiving portion (35), wherein when the directional control valve is at the neutral position, the discharged pressure oil is supplied to the first and second ports via check valves (36, 37), when at the first position, the discharged pressure oil is supplied to the first port, while pressure oil at the second port is discharged therefrom into the tank, and when at the second position, the discharged pressure oil is supplied to the second port, while pressure oil at the second port is discharged therefrom into the tank, wherein the pilot pressure supplying valve is positioned at a neutral position F by means of springs (50, 51), and is switched to a first position G and a second position H by first and second drive means (52, 53), respectively, so as to supply pilot pressure to the first and second pressure receiving portions, and wherein when the pilot pressure supplying valve is positioned at the neutral position, the first and second pressure receiving portions communicate with the tank, when at the first position, the first port communicates with the first pressure receiving portion, while the second pressure receiving portion communicates with the tank and when at the second position, the second port communicates with the second pressure receiving portion, while the first pressure receiving portion communicates with the tank.

    Abstract translation: 一种用于液压马达的驱动装置,包括用于将从液压泵(20)排出的压力油提供给液压马达(24)的第一端口(25)或第二端口(26)的方向控制阀(21) 从第二端口或第一端口返回到罐(27)和用于控制方向控制阀(21)的先导压力供应阀(40)的油,其中方向控制阀是先导压力选择型,其中阀 通过弹簧(32,33)分别在中间位置A处,在第一位置B处由于对第一压力接收部分(34)的压力而定位,并且在第二位置C处借助于 压力传递到第二压力接收部分(35),其中当所述方向控制阀处于中间位置时,排出的压力油通过止回阀(36,37)供应到第一和第二端口,当在第一位置时, 排出的压力油被供给到f 第一端口,而第二端口处的压力油从其排出到罐中,并且当在第二位置时,排出的压力油被供给到第二端口,同时第二端口处的压力油从其排出到罐中,其中 先导压力供给阀通过弹簧(50,51)位于中立位置F,并分别通过第一和第二驱动装置(52,53)切换到第一位置G和第二位置H,因此 用于向第一和第二压力接收部分供给先导压力,并且其中当先导压力供给阀位于中间位置时,第一和第二压力接收部分与罐连通,当处于第一位置时,第一端口 与第一压力接收部分连通,而第二压力接收部分与罐连通,并且当在第二位置时,第二端口与第二压力接收部 而第一压力接收部分与罐连通。

    BRAKE DEVICE FOR INERTIA BODY DRIVING HYDRAULIC CIRCUIT
    10.
    发明申请
    BRAKE DEVICE FOR INERTIA BODY DRIVING HYDRAULIC CIRCUIT 审中-公开
    用于动力驱动液压回路的制动装置

    公开(公告)号:WO1994012794A1

    公开(公告)日:1994-06-09

    申请号:PCT/JP1993001753

    申请日:1993-12-01

    Abstract: A brake device for an inertia body driving hydraulic circuit characterized in that first and second oil ports (11, 12) are formed in parallel to each other in a housing (10) so as to connect said first and second oil ports to an inertia body driving actuator (18), that said first and second oil ports are caused to communicate with each other via a communicating oil port (13), which is then caused to communicate with a tank port (14), that first and second mounting holes (15, 16) are formed in said housing in such a manner that they open to said first and second oil port and are concentric with said communicating oil port, and that first and second suction safety valves (17, 17) having suction and relief functions are provided in said first and second mounting holes, respectively. With this brake device, since the first and second oil ports are formed in parallel to each other in the housing, the first and second oil ports are made to communicate with each other via the communicating oil port, and the suction safety valves are respectively provided in the first and second mounting holes which are concentric with the communicating port, the shape of the oil ports are simple for case of working. Moreover, pressure oil in the tank port is sucked into the first and second oil ports in a linear fashion via the communicating oil port to reduce the pressure loss, thereby making it possible to positively prevent cavitation.

    Abstract translation: 1.一种用于惯性体驱动液压回路的制动装置,其特征在于,第一和第二油口(11,12)在壳体(10)中彼此平行地形成,以将所述第一和第二油口连接到惯性体 驱动致动器(18),使得所述第一和第二油口经由连通油口(13)彼此连通,所述连通油口(13)然后与罐口(14)连通,所述第一和第二安装孔 15,16)形成在所述壳体中,使得它们对所述第一和第二油口开口并且与所述连通油口同心,并且具有抽吸和释放功能的第一和第二吸入安全阀(17,17) 分别设置在所述第一和第二安装孔中。 利用该制动装置,由于第一和第二油口在壳体中彼此平行地形成,所以第一和第二油口经由连通油口彼此连通,并且分别设置吸入安全阀 在与连通口同心的第一和第二安装孔中,油口的形状在加工的情况下是简单的。 此外,槽口中的压力油经由连通油口以直线方式吸入第一和第二油口,以减小压力损失,从而可以有效地防止空化。

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