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    Hydraulic system for work machine
    1.
    发明授权
    Hydraulic system for work machine 有权

    公开(公告)号：US10253479B2

    公开(公告)日：2019-04-09

    申请号：US14915311

    申请日：2015-01-09

    申请人： Hitachi Construction Machinery Co., Ltd. ,  Takako Satake

    发明人： Tomoaki Kaneta ,  Kouji Ishikawa ,  Hidetoshi Satake ,  Shinya Imura

    IPC分类号： F15B11/08 ,  F15B13/04 ,  E02F3/32 ,  E02F3/96 ,  E02F9/20 ,  E02F9/22

    摘要： When option attachment has not been attached, a reserve flow/direction control valve 8 is made to operate as a center bypass cut valve. When an option attachment has been attached, switching control is performed. In the switching control, when the option attachment is not used, the reserve flow/direction control valve 8 is made to operate as a center bypass cut valve for adjusting composite opening area of a center bypass and thereby controlling the flow rate of hydraulic fluid flowing into an actuator. When the option attachment is used, the reserve flow/direction control valve 8 is made to operate so as to supply the hydraulic fluid to an option hydraulic actuator 14.

    Work Machine
    6.
    发明申请
    Work Machine 有权
    工作机器

    公开(公告)号：US20150252819A1

    公开(公告)日：2015-09-10

    申请号：US14436395

    申请日：2013-10-17

    申请人： Takako SATAKE ,  HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： Shinya Imura ,  Kouji Ishikawa ,  Hidetoshi Satake ,  Tomoaki Kaneta

    IPC分类号： F15B11/042 ,  E02F9/24 ,  E02F9/22 ,  F15B11/08 ,  F15B13/02

    CPC分类号： F15B11/0423 ,  E02F9/2225 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  E02F9/24 ,  E02F9/268 ,  F04B49/22 ,  F15B11/08 ,  F15B13/02 ,  F15B2211/20546 ,  F15B2211/3116 ,  F15B2211/40515 ,  F15B2211/41581 ,  F15B2211/45 ,  F15B2211/6346 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6658

    摘要： Provided is a work machine including: a variable-displacement pump 2; an actuator 5 driven by a hydraulic fluid delivered from the pump 2; a flow control valve 4 of an open-center type that controls a flow rate of the hydraulic fluid supplied to the actuator 5; a bleed-off line 8a connecting the actuator flow control valve 4 to a tank 6; a bleed-off flow control valve 8 disposed in the bleed-off line 8a; an operating device 3 that specifies operation of the actuator 5; a bleed-off control device 14 that controls a degree of opening of the bleed-off flow control valve 8 in accordance with an amount of manipulation of the operating device 3; and a pump control device 15 that controls, in accordance with the degree of opening of the bleed-off flow control valve 8, a pump flow rate by correcting a reference pump flow rate that is based on the amount of manipulation of the operating device 3. The work machine with this configuration can save energy while at the same time inhibiting an occurrence of a sense of strangeness or discomfort in particular operation.

    摘要翻译： 提供了一种作业机械，包括：可变排量泵2; 由从泵2输送的液压流体驱动的致动器5; 开放式流量控制阀4，其控制供应到致动器5的液压流体的流量; 将致动器流量控制阀4连接到罐6的排出管线8a; 设置在排出管线8a中的排出流量控制阀8; 指定致动器5的操作的操作装置3; 泄放控制装置14，其根据操作装置3的操纵量来控制排出流量控制阀8的打开程度; 以及泵控制装置15，其根据排出流量控制阀8的打开程度，通过基于操作装置3的操作量校正基准泵流量来控制泵流量 具有这种结构的工作机器可以节省能量，同时抑制特殊操作中的异常感或不适感。

    Hybrid construction machine
    7.
    发明授权
    Hybrid construction machine 有权
    混合式施工机

    公开(公告)号：US08958958B2

    公开(公告)日：2015-02-17

    申请号：US13982563

    申请日：2012-01-05

    申请人： Shinya Imura ,  Kouji Ishikawa ,  Takatoshi Ooki ,  Shinji Nishikawa ,  Manabu Edamura ,  Takako Satake

    发明人： Shinya Imura ,  Kouji Ishikawa ,  Hidetoshi Satake ,  Takatoshi Ooki ,  Shinji Nishikawa ,  Manabu Edamura

    IPC分类号： G06F7/70 ,  E02F9/12 ,  E02F9/20

    CPC分类号： E02F9/123 ,  E02F9/2037 ,  E02F9/2095 ,  Y10S903/903 ,  Y10S903/93

    摘要： In hybrid construction machine employing a hydraulic motor and an electric motor for the driving of the swing structure, satisfactory operability of a combined operation of the swing structure and other actuators is secured irrespective of the operating status of the electric motor.A control device of the hybrid construction machine executes control selected from: hydraulic/electric complex swing control for driving the swing structure by total torque of the electric motor and the hydraulic motor when a swing operating lever device is operated; and hydraulic solo swing control for driving the swing structure by the torque of the hydraulic motor alone when the swing operating lever device is operated. The control device controls drive torque or driving force of each of the electric motor, the hydraulic motor and a second hydraulic actuator so that the relationship between the position or the speed of the second hydraulic actuator and the swing angle or the swing speed of the swing structure in the combined operation when the swing operating lever device and a second operating lever device are operated at the same time during the hydraulic/electric complex swing control is substantially identical with the relationship in the combined operation during the hydraulic solo swing control.

    摘要翻译： 在使用液压马达和用于驱动摆动结构的电动机的混合动力施工机械中，无论电动机的运行状态如何，均可确保摆动结构和其它致动器的组合操作的可操作性。 混合动力施工机械的控制装置执行选择的控制装置：当操作摆动操作杆装置时，通过电动机和液压马达的总转矩来驱动摆动结构的液压/电动复合摇摆控制; 以及当操作摆动操作杆装置时单独通过液压马达的扭矩驱动摆动结构的液压独奏摆动控制。 控制装置控制电动机，液压马达和第二液压致动器中的每一个的驱动扭矩或驱动力，使得第二液压致动器的位置或速度与摆动角度或摆动摆动速度之间的关系 在液压/电气复合体摆动控制期间当摆动操作杆装置和第二操作杆装置同时操作时的组合操作中的结构与液压独奏摇摆控制期间的组合操作的关系基本相同。

    Electric Motor
    8.
    发明申请
    Electric Motor 审中-公开
    电动马达

    公开(公告)号：US20140300225A1

    公开(公告)日：2014-10-09

    申请号：US14007378

    申请日：2012-04-12

    申请人： Shinya Okumura ,  Mitsugu Ojima ,  Takako Satake

    发明人： Shinya Okumura ,  Hidetoshi Satake ,  Mitsugu Ojima

    IPC分类号： H02K5/22

    CPC分类号： H02K5/225

    摘要： To provide an electric motor that can reduce the labor of its installation work.An electric motor is provided with a motor casing (2) with an armature accommodated therein, a flange (3) formed projecting in a rim shape on an outer side wall of the motor casing (2) and provided with plural portions where the flange can be fastened by screws, a conductive part (30) electrically connected to the armature, arranged exposed on the outer side wall of the motor casing (2) and located on a side of a centerline (O) of the motor casing (2) relative to the portions of the flange (3) where the flange can be fastened by the screws, an electric wire (20) having a terminal (21) at an end thereof, electrically connected at a position of the terminal (21) to the conductive part (30) and connected at an opposite end thereof to a power supply, and a cover member (10) detachably attached to the outer side wall of the motor casing (2) while covering the terminal (21) and conductive part (30) which are in an electrically connected state.

    摘要翻译： 提供可以减少安装工作人力的电动机。 电动机设有电枢壳体（2），其中容纳有电枢，电动机壳体（2）的外侧壁上形成有突缘状的凸缘（3），凸缘 通过螺钉固定，电连接到电枢的导电部件（30），暴露在电动机壳体（2）的外侧壁上并且位于电动机壳体（2）的中心线（O）的侧面上 通过螺钉将法兰固定在凸缘（3）的可以通过螺钉紧固的部分，在端部具有端子（21）的电线（20）在端子（21）的位置处电连接到导电 （30）并且在其相对端连接到电源，以及覆盖所述端子（21）和导电部（30）的可拆卸地附接到所述电动机壳体（2）的外侧壁的盖构件（10） 它们处于电连接状态。

    WORK MACHINE
    9.
    发明申请
    WORK MACHINE 有权
    工作机器

    公开(公告)号：US20140165548A1

    公开(公告)日：2014-06-19

    申请号：US14115972

    申请日：2012-05-10

    申请人： Shinji Nishikawa ,  Kouichi Shibata ,  Takako Satake ,  Manabu Edamura ,  Takatoshi Ooki

    发明人： Hidetoshi Satake ,  Manabu Edamura ,  Takatoshi Ooki ,  Shinji Nishikawa ,  Kouichi Shibata

    IPC分类号： E02F9/12

    CPC分类号： E02F9/123 ,  B60K6/46 ,  B60K7/0015 ,  B60K17/10 ,  B60K25/00 ,  B60K25/04 ,  B60K2001/0416 ,  B60L1/003 ,  B60L11/005 ,  B60L11/12 ,  B60L2200/40 ,  B60L2250/16 ,  B60Y2200/41 ,  B60Y2200/412 ,  B60Y2200/415 ,  E02F9/2075 ,  E02F9/2095 ,  E02F9/226 ,  E02F9/2296 ,  E02F9/267 ,  Y02T10/6217 ,  Y02T10/7022 ,  Y02T10/7077

    摘要： A work machine includes a swing hydraulic motor and a swing electric motor for driving an upper swing structure. A capacitor supplies electricity to the swing electric motor and an operating device outputs through one operation, an operating signal for concurrently operating the swing hydraulic motor and the swing electric motor. A main controller switches between a hydraulic-alone drive mode and an electric-alone drive mode, the hydraulic-alone drive mode being a mode to drive only the swing hydraulic motor selected from the swing hydraulic motor and the swing electric motor when the operating device is operated, the electric-alone drive mode being a mode to drive only the swing electric motor selected from the swing hydraulic motor and the swing electric motor when the operating is operated. Therefore, the actuator that malfunctions can easily be specified among the plurality of mounted actuators.

    摘要翻译： 作业机械包括摆动液压马达和用于驱动上部摆动结构的摆动电动机。 电容器向摆动电动机供电，操作装置通过一次操作输出操作信号，用于同时操作回转液压马达和摆动电动机。 主控制器在液压单独驱动模式和单独驱动模式之间切换，液压单独驱动模式是当操作装置仅驱动从摆动液压马达和摆动马达选择的摆动液压马达时的模式 操作时，电动单元驱动模式是当操作操作时仅驱动从摆动液压马达和摆动马达选择的摆动电动机的模式。 因此，可以容易地在多个安装的致动器中指定故障的致动器。

    CONSTRUCTION MACHINERY
    10.
    发明申请
    CONSTRUCTION MACHINERY 审中-公开
    建筑机械

    公开(公告)号：US20140137548A1

    公开(公告)日：2014-05-22

    申请号：US14233159

    申请日：2012-06-01

    申请人： Shinji Nishikawa ,  Seiji Hijikata ,  Kouji Ishikawa ,  Shinya Imura ,  Takako Satake ,  Takatoshi Ooki

    发明人： Shinya Imura ,  Hidetoshi Satake ,  Kouji Ishikawa ,  Seiji Hijikata ,  Takatoshi Ooki ,  Shinji Nishikawa

    IPC分类号： F15B11/20

    CPC分类号： F15B13/06 ,  E02F9/123 ,  E02F9/2095 ,  E02F9/2217 ,  E02F9/2235 ,  E02F9/2242 ,  E02F9/2282 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/20 ,  F15B21/001 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/88

    摘要： Construction machinery that can achieve a great fuel reduction effect through an efficient use of recovered energy is provided.The Construction machinery includes at least two actuators 7 and 8, a main pump 3 that generates hydraulic energy for driving the actuators 7 and 8, flow control means 4 disposed between the main pump 3 and the actuators 7 and 8, an additional energy generating means 11 that generates energy to be added to the hydraulic energy, and a control means 20 that reduces hydraulic energy generated by the main pump 3 when the additional energy generating means 11 generates energy. The construction machinery further comprises changeover means 12d, 12e, and 12f that selectively change a location at which the energy from the additional energy generating means 11 is to be added according to the actuators 7 and 8. The control means 20 changes a reduction rate of the hydraulic energy generated by the main pump 3 depending on a specific actuator 7 or 8 to which the energy is to be added.

    摘要翻译： 提供了能够通过有效利用回收能量实现极大的减少燃料效果的工程机械。 施工机械包括至少两个致动器7和8，产生用于驱动致动器7和8的液压能的主泵3，设置在主泵3和致动器7和8之间的流量控制装置4，附加的能量产生装置 产生添加到液压能的能量的控制装置20，以及当附加能量产生装置11产生能量时减少由主泵3产生的液压能量的控制装置20。 施工机械还包括切换装置12d，12e和12f，其根据致动器7和8选择性地改变来自附加能量产生装置11的能量的位置。控制装置20改变减速率 由主泵3产生的液压能量取决于要添加能量的特定致动器7或8。