公开(公告)号：WO1996004481A1

公开(公告)日：1996-02-15

申请号：PCT/JP1995001547

申请日：1995-08-03

Applicant: KOMATSU LTD. ,  ISHIZAKI, Naoki ,  TAKANO, Toshiro

Inventor： KOMATSU LTD.

IPC: F15B11/024

CPC classification number: F15B13/021 ,  F15B11/024 ,  F15B11/123 ,  F15B2211/30525 ,  F15B2211/3133 ,  F15B2211/35 ,  Y10T137/86606 ,  Y10T137/8663

Abstract: The invention relates to a directional control valve which comprises a first actuator port connected to a lifting side chamber of a cylinder of a working machine, a second actuator port connected to a lowering side chamber of the cylinder of the working machine, a regeneration passage for alloying the second actuator port communicate with a regeneration port through a check valve, and a main spool adapted to move in one direction to thereby supply a pressure oil to the second actuator port and to allow the first actuator port to communicate with a tank port and the regeneration port. The directional control valve is characterized in the provision of a switching means for switching a maximum distance of movement of the main spool in one direction in a plurality of stages.

Abstract translation: 本发明涉及一种方向控制阀，其包括连接到作业机的气缸的提升侧室的第一致动器端口，连接到作业机的气缸的下降侧室的第二致动器端口，再生通道， 合金化第二致动器端口通过止回阀与再生端口连通，以及主阀芯，其适于在一个方向上移动，从而向第二致动器端口提供压力油，并允许第一致动器端口与罐口连通， 再生口。 方向控制阀的特征在于提供一种切换装置，用于在多个阶段中在一个方向上切换主卷轴的最大移动距离。

公开(公告)号：WO1995035220A1

公开(公告)日：1995-12-28

申请号：PCT/JP1995001227

申请日：1995-06-20

Applicant: KOMATSU LTD. ,  ISHIZAKI, Naoki ,  TAKANO, Toshiro

Inventor： KOMATSU LTD.

IPC: B60K17/10

CPC classification number: F15B11/05 ,  B62D11/005 ,  E02F9/2225 ,  E02F9/2232 ,  E02F9/2253 ,  E02F9/2296 ,  F15B13/022 ,  F15B2211/20553 ,  F15B2211/3054 ,  F15B2211/405 ,  F15B2211/40515 ,  F15B2211/41545 ,  F15B2211/428 ,  F15B2211/7058 ,  F15B2211/71 ,  F15B2211/78 ,  F16H61/40 ,  F16H61/452

Abstract: A running control circuit for a hydraulically driven running device comprising a hydraulic pump, parallel left- and right-hand directional control valves provided along a discharge path of the hydraulic pump, sets of first left- and right-hand circuits and second left- and right-hand circuits formed by connecting output sides of the left- and right-hand directional control valves to left- and right-hand running hydraulic motors, respectively, and pressure compensating valves each provided along the first and second circuits for controlling an opening area between an inlet port and an outlet port thereof by virtue of the difference in pressure between its own loading pressure and the highest of the loading pressures of the left- and right-hand running hydraulic motors for compensation of pressure, wherein the pressure compensating valves are constructed to function such that they establish communications between the first left- and right-hand circuits and between the second left- and right-hand circuits via a communication path, respectively, when compensating for hydraulic oil, while they cut off communications between the first left- and right-hand circuits and between the second left- and right-hand circuits when a communication between the inlet and outlet ports is cut off or substantially cut off.

Abstract translation: 一种用于液压驱动运行装置的运行控制电路，包括液压泵，沿着液压泵的排放路径设置的平行左右方向控制阀，第一左右电路和第二左侧和右侧 通过将左右方向控制阀的输出侧分别连接到左侧和右侧运行的液压马达和分别设置在第一和第二回路上的压力补偿阀形成的右侧回路，用于控制开口面积 由于其自身的负载压力与用于补偿压力的左右行驶液压马达的最高负载压力之间的压力差，在其入口和出口之间，其中压力补偿阀是 构造成起作用，使得它们建立第一左右电路之间以及第二左右电路之间的通信 当补偿液压油时，它们分别通过通信路径传输，同时当第一左右电路和第二左右电路之间的通信切断时，当进口和 出口端口被切断或基本切断。

公开(公告)号：WO1996004482A1

公开(公告)日：1996-02-15

申请号：PCT/JP1995001546

申请日：1995-08-03

Applicant: KOMATSU LTD. ,  ISHIZAKI, Naoki ,  TAKANO, Toshiro

Inventor： KOMATSU LTD.

IPC: F15B11/05

CPC classification number: F15B13/0417 ,  G05D16/10 ,  Y10S137/906 ,  Y10T137/7764 ,  Y10T137/7766 ,  Y10T137/777

Abstract: The invention relates to a pressure compensating valve which comprises a valve for opening and closing an inlet port and an outlet port, a pressure receiving chamber, a piston driven by a negative pressure in the pressure receiving chamber to move the valve in a closing direction, an intermediate pressure receiving chamber communicating with the inlet port through a first fine hole to have its internal pressure push the valve in the closing direction, and a variable set pressure type relief valve for causing a pressure oil in the intermediate pressure receiving chamber to be relieved to the outlet port through a second fine hole.

Abstract translation: 本发明涉及一种压力补偿阀，其包括用于打开和关闭入口和出口的阀，压力接收室，由压力接收室中的负压驱动的活塞，以沿关闭方向移动阀， 中间压力接收室，其通过第一细孔与入口连通，以使其内部压力沿关闭方向推动阀;以及可变设定压力型安全阀，用于使中压接收室中的压力油释放 通过第二个细孔到出口。

公开(公告)号：WO1998017913A1

公开(公告)日：1998-04-30

申请号：PCT/JP1997003857

申请日：1997-10-23

Applicant: KOMATSU LTD. ,  MARUTA, Kazuhiro ,  ISHIZAKI, Naoki ,  ENDO, Hiroshi ,  YOSHIDA, Nobumi

Inventor： KOMATSU LTD.

IPC: F04B01/24

CPC classification number: F04B1/24 ,  F04B1/303 ,  G10L2015/223

Abstract: A plurality of chambers (18 and 19) whose capacities are increased and reduced by the reciprocal motions of pistons (16 and 17) are provided. A cylinder block (5) which is provided in a housing (3) and is rotatable together with a shaft (4) along a valve plate (8) and whose rotation causes the respective pistons to perform contraction motions from the top dead centers to the bottom dead centers and perform expansion motions from the bottom dead centers to the top dead centers, a 1st kidney port (30) and a 4th kidney port (41) which are provided in the valve plate (8) in a region on one of the sides (left or right) of the straight line (X) connecting the top dead center and the bottom dead center and a 3rd kidney port (40) and a 2nd kidney port (31) which are provided in the valve plate (8) in a region on the other side (right or left ) of the straight line (X) are included in a hydraulic pump/motor apparatus. Some of the chambers are successively made to communicate with the 1st kidney port and the 2nd kidney port by the rotation of the cylinder block to constitute a 1st pump/motor of the hydraulic pump/motor and the other of the chambers are successively made to communicate with the 3rd kidney port and the 4th kideny port by the rotation of the cylinder block to constitute a 2nd pump/motor.

Abstract translation: 提供了通过活塞（16和17）的往复运动来增加和减小容量的多个腔室（18和19）。 一种气缸体（5），其设置在壳体（3）中并且沿着阀板（8）与轴（4）一起旋转，并且其旋转使各活塞从上死点到第 下死点，并从下死点到上死点进行膨胀运动，第一肾口（30）和第四肾口（41），其设置在阀板（8）中的一个 连接上止点和下死点的直线（X）的侧面（左侧或右侧）和设置在阀板（8）中的第三肾口（40）和第二肾口（31） 直线（X）的另一侧（右侧或左侧）的区域被包括在液压泵/电动机装置中。 一些腔室依次通过气缸体的旋转而与第一肾口和第二肾口连通，构成液压泵/马达的第一泵/马达，并且另一个腔室依次进行连通 通过气缸体的旋转与第三肾口和第四个小腿口组成第二个泵/马达。

公开(公告)号：WO1996032546A1

公开(公告)日：1996-10-17

申请号：PCT/JP1996001033

申请日：1996-04-15

Applicant: KOMATSU LTD. ,  SHINOHARA, Shigeru ,  ISHIZAKI, Naoki ,  HATA, Takanori

Inventor： KOMATSU LTD.

IPC: E02F03/40

CPC classification number: E02F3/967 ,  B25D17/28 ,  E02F3/963 ,  E02F3/966 ,  E02F9/221

Abstract: A bucket type digging machine wherein a boom (5) is attached to a vehicle body (4) in such a manner as to swing vertically, wherein an arm (7) is mounted on the boom in such a manner as to swing vertically, wherein a bucket (10) is attached to the arm in such a manner as to turn vertically and wherein a piston rod (12) of a bucket cylinder (11) connected to the arm is connected to the bucket via a link mechanism (18), the digging machine being characterized in that the link mechanism comprises a main body (14) of a vibration generating device (13) and a plurality of links (15, 16, 17) that connect the main body to the arm, and that a working tool is detachably mounted on the main body in such a manner as to protrude forwardly of the arm.

Abstract translation: 一种铲斗式挖掘机，其特征在于，以垂直摆动的方式将吊杆（5）安装在车体（4）上，其中臂（7）以垂直方式摆动地安装在起重臂上，其中 铲斗（10）以垂直方式安装到臂上，其中连接到臂的铲斗缸（11）的活塞杆（12）经由连杆机构（18）连接到铲斗， 挖掘机的特征在于，连杆机构包括振动发生装置（13）的主体（14）和将主体连接到臂的多个连杆（15,16,17），并且工作 工具以能够向前突出的臂的方式可拆卸地安装在主体上。

公开(公告)号：WO1996030597A1

公开(公告)日：1996-10-03

申请号：PCT/JP1996000826

申请日：1996-03-28

Applicant: KOMATSU LTD. ,  UEHARA, Kazuo ,  YAMAGUCHI, Hiromasa ,  ISHIZAKI, Naoki

Inventor： KOMATSU LTD.

IPC: E02F03/32

CPC classification number: E02F3/302

Abstract: A link device for a hydraulic shovel that facilitates horizontal digging by the hydraulic shovel. The link device comprises a power lever (19) having a first fulcrum connected to a boom (2) via a boom pin (4) in such a manner as to swivel thereat, a second fulcrum connected to a boom cylinder (5) via a boom head pin (18) in such a manner as to swivel thereat and a third fulcrum mounted on an arm pin (20), and a power rod (22) connected to an arm power pin (21) mounted on an arm (7) at one end and to the arm pin (20) at the other end thereof. When the arm (7) is swivelled by extending or contracting an arm cylinder (10), the boom (2) is caused to rise or fall in synchronism therewith, whereby the tip of a bucket (12) is moved linearly.

Abstract translation: 用于液压挖掘机的连杆装置，其便于通过液压挖掘机的水平挖掘。 连杆装置包括一个动力杆（19），其具有第一支点，该第一支点经由悬臂销（4）以悬臂方式连接到悬臂（2），第二支点经由臂架 悬臂头销（18），以及安装在臂销（20）上的第三支点，以及连接到安装在臂（7）上的臂电源销（21））的动力杆（22） 在另一端处的一端和臂销（20）。 当臂（7）通过伸缩臂（10）的伸缩而旋转时，使起重臂（2）与其同步地上升或下降，从而使铲斗（12）的前端线性移动。

公开(公告)号：WO1996027937A1

公开(公告)日：1996-09-12

申请号：PCT/JP1996000524

申请日：1996-03-05

Applicant: KOMATSU LTD. ,  ISHIZAKI, Naoki ,  UEHARA, Kazuo ,  YAMAGUCHI, Hiromasa

Inventor： KOMATSU LTD.

IPC: H02K07/14

CPC classification number: F04B53/18 ,  F04B1/22 ,  F04B17/046 ,  F04B49/002 ,  F04B49/06 ,  F04B2201/0402 ,  F04B2201/1201 ,  F04B2201/12041 ,  F04B2203/0207 ,  H02K7/00 ,  H02K7/14

Abstract: An electric hydraulic hybrid motor which can be made smaller in size and provide good performance. To this end, a hydraulic pump (20) and a hydraulic motor (60) are disposed inwardly, respectively, of a stator (12) of an electric motor (10) and a rotor (14), and the hydraulic pump (20) comprises a cylinder block (21) for a pump which is adapted to rotate together with the rotor (14) and a plunger (23) for the pump, and the hydraulic motor (60) comprises a cylinder block (61) for the motor and a plunger (23a) for the motor.

Abstract translation: 一种电动液压混合动力电动机，可以制造尺寸更小，性能更好。 为此，液压泵（20）和液压马达（60）分别设置在电机（10）和转子（14）的定子（12）的内侧，液压泵（20） 包括用于泵的气缸体（21），其适于与所述转子（14）一起旋转，以及用于所述泵的柱塞（23），并且所述液压马达（60）包括用于所述马达的气缸体（61） 用于电机的柱塞（23a）。

公开(公告)号：WO1996008652A1

公开(公告)日：1996-03-21

申请号：PCT/JP1995001839

申请日：1995-09-14

Applicant: KOMATSU LTD. ,  ODA, Yosuke ,  MORINO, Kenji ,  ISHIZAKI, Naoki

Inventor： KOMATSU LTD.

IPC: F04B49/00

CPC classification number: F04B49/002 ,  F04B49/08 ,  F04B2201/1204 ,  F04B2205/08

Abstract: A capacitor controller of a variable capacity hydraulic pump comprising a capacity control cylinder (6) including a capacity control piston (6a) for driving a capacity control member (5) of a variable capacity hydraulic pump, and a large diameter chamber (7) and a small diameter chamber (10) disposed on both sides of the capacity control piston (6a), for driving the capacity control piston (6a) in a capacity decreasing direction by a pressure oil supplied to the large diameter chamber (7) and driving the capacity control piston (6a) in a capacity increasing direction by the pressure oil supplied to the small diameter chamber (10), a passage allowing the small diameter chamber (10) to communicate with a pump exhaust path (2), at least one control valve (8, 9) for controlling the capacity of the variable capacity pump by selectively allowing the large diameter chamber (7) to communicate with the pump exhaust passage (2) or with a tank (56), and a variable throttle valve (30) disposed in a passage which allows the large diameter chamber (7) to communicate with the pump exhaust passage (2) or with the tank (56), and controlling the flow of the pressure oil supplied to, or flowing out from, the large diameter chamber (7), wherein the variable throttle valve (30) can be switched between a first state where the throttle open area is inversely proportional to the self exhaust pressure of the pump exhaust passage (2) and a second state where the throttle open area is set to a predetermined open area by an external signal irrespective of the self exhaust pressure.

Abstract translation: 一种可变容量液压泵的电容器控制器，包括容量控制缸（6），容量控制缸（6）包括用于驱动可变容量液压泵的容量控制构件（5）的容量控制活塞（6a）和大直径室（7），以及 设置在容量控制活塞（6a）的两侧的小直径室（10），用于通过供给到大直径室（7）的压力油沿容积减小方向驱动容量控制活塞（6a），并驱动 容量控制活塞（6a）通过供给到小直径室（10）的压力油在容量增加方向上，允许小直径室（10）与泵排气路径（2）连通的通道，至少一个控制 阀（8,9），用于通过选择性地允许大直径腔室（7）与泵排气通道（2）或罐（56）连通，以及可变节流阀（30）来控制可变容量泵的容量 ） 允许大直径室（7）与泵排气通道（2）或罐（56）连通的通道，并且控制供应到大直径室（或从其流出）的压力油的流动 7），其中所述可变节流阀（30）可以在所述节气门开度与所述泵排气通道（2）的自排气压力成反比的第一状态和设定所述节气门开度区域的第二状态之间切换 通过外部信号到达预定的开放区域，而与自身排气压力无关。

公开(公告)号：WO1991018211A1

公开(公告)日：1991-11-28

申请号：PCT/JP1991000638

申请日：1991-05-15

Applicant: KOMATSU LTD. ,  AKIYAMA, Teruo ,  SHIRAI, Kiyoshi ,  ISHIZAKI, Naoki ,  YAMASHITA, Koji ,  SHINOZAKI, Shinichi

Inventor： KOMATSU LTD.

IPC: F15B11/00

CPC classification number: E02F9/2232 ,  E02F9/2225 ,  E02F9/2296 ,  F15B13/0417 ,  Y10T137/87169 ,  Y10T137/87185

Abstract: A control valve provided with a pressure compensated valve without the interior of a valve body being complicated. In the valve body, a load pressure transmitting path, a check valve and a restriction are formed in a spool constituting a control valve thereof, and an intermediate pressure between a pressure at the inlet and a pressure at the outlet of the pressure compensated valve adjacently provided in the valve body can be fed to a pressure receiving portion of the pressure compensated valve through an oil hole formed in the spool, so that the control valve provided with the pressure compensated valve, which is simple in construction and easy to manufacture, can be provided.

公开(公告)号：WO1996030650A1

公开(公告)日：1996-10-03

申请号：PCT/JP1996000751

申请日：1996-03-22

Applicant: KOMATSU LTD. ,  ISHIZAKI, Naoki ,  UEHARA, Kazuo ,  YAMAGUCHI, Hiromasa

Inventor： KOMATSU LTD.

IPC: F15B09/09

CPC classification number: F15B9/09

Abstract: A low-cost, precision rotation control apparatus suitable for a large-output rotary actuator. This apparatus comprises a hydraulic rotary servo valve (4) having a rotary spool (40) and a rotary sleeve (20); an electric motor (5) having an output shaft connected to either the rotary spool (40) or the rotary spool (20), the motor being electrically controlled to vary its rotational speed and angular position; a hydraulic motor (3) having an output shaft connected to the remaining one of the rotary spool (40) and rotary sleeve (20); a hydraulic pump (1) adapted to drive the hydraulic motor (3) via the hydraulic rotary servo valve (4); and a driving power source (2) for driving the hydraulic pump (1).

Abstract translation: 适用于大输出旋转执行器的低成本精密旋转控制装置。 该装置包括具有旋转卷轴（40）和旋转套筒（20）的液压旋转伺服阀（4）。 具有连接到旋转卷轴（40）或旋转卷轴（20）的输出轴的电动机（5），电动机被电控制以改变其转速和角度位置; 液压马达（3），其输出轴连接到旋转滑阀（40）和旋转套筒（20）中的剩余的一个; 液压泵（1），其经由液压旋转伺服阀（4）驱动液压马达（3）; 和用于驱动液压泵（1）的驱动动力源（2）。