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    TILT ANGLE CONTROL DEVICE
    5.
    发明公开
    TILT ANGLE CONTROL DEVICE 审中-公开
    NEIGUNGSWINKELSTEUERUNGSVORRICHTUNG

    公开(公告)号：EP2894335A1

    公开(公告)日：2015-07-15

    申请号：EP13816544.4

    申请日：2013-07-08

    申请人： Kawasaki Jukogyo Kabushiki Kaisha

    发明人： YAMADA, Masahiro ,  MURAOKA, Hideyasu ,  FUJIYAMA, Kazuto ,  YAMAMOTO, Ryo

    IPC分类号： F04B49/06 ,  E02F9/22 ,  F15B11/00 ,  F15B11/028 ,  F15B11/08

    CPC分类号： F04B1/295 ,  E02F9/2235 ,  E02F9/2282 ,  E02F9/2292 ,  E02F9/2296 ,  F04B1/122 ,  F04B1/146 ,  F04B49/06 ,  F15B11/165 ,  F15B11/167 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/6316 ,  F15B2211/6355 ,  F15B2211/6652

    摘要： A tilting angle control device 1 includes pressure sensors 51 to 56. Each of the pressure sensors 51 to 56 outputs to a control unit 60 a pressure command signal corresponding to an operation amount. The control unit 60 outputs to an electromagnetic proportional control valve 44 a pressure control signal corresponding to the pressure command signal, and the electromagnetic proportional control valve 44 outputs to a tilt adjustment mechanism 31 pilot pressure p2 corresponding to the pressure control signal. The tilt adjustment mechanism 31 adjusts a tilting angle α of a variable displacement pump 10L such that the tilting angle α becomes an angle corresponding to the pilot pressure p2. A pilot pressure sensor 45 detects the pilot pressure p2 to output a pressure feedback signal to the control unit 60. The control unit 60 calculates the pressure control signal based on the pressure feedback signal and the pressure command signal and performs feedback control of the pilot pressure p2.

    摘要翻译： 倾斜角度控制装置1包括压力传感器51〜56。压力传感器51〜56中的每一个向控制单元60输出与操作量对应的压力指令信号。 控制单元60向电磁比例控制阀44输出与压力指令信号相对应的压力控制信号，并且电磁比例控制阀44输出到与压力控制信号对应的先导压力p2的倾斜调节机构31。 倾斜调节机构31调整可变排量泵10L的倾斜角度±，使得倾斜角度±成为对应于先导压力p2的角度。 先导压力传感器45检测先导压力p2，以将压力反馈信号输出到控制单元60.控制单元60基于压力反馈信号和压力指令信号计算压力控制信号，并执行先导压力的反馈控制 P2。

    DEVICE FOR CONTROLLING CONSTRUCTION EQUIPMENT
    6.
    发明公开
    DEVICE FOR CONTROLLING CONSTRUCTION EQUIPMENT 审中-公开
    VORRICHTUNG ZUR STEUERUNG EINER BAUMASCHINE

    公开(公告)号：EP2610409A1

    公开(公告)日：2013-07-03

    申请号：EP10856458.4

    申请日：2010-08-24

    申请人： Volvo Construction Equipment AB

    发明人： KIM, Dong-Soo

    IPC分类号： E02F9/22 ,  F15C3/02 ,  F15B21/02

    CPC分类号： E02F9/22 ,  E02F9/2228 ,  E02F9/2282 ,  E02F9/2285 ,  F15B11/167 ,  F15B2211/20523 ,  F15B2211/30525 ,  F15B2211/3116 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/6316 ,  F15B2211/6355 ,  Y10T137/86027

    摘要： Provided is a device for controlling construction equipment for controlling the spool of an MCV, which is directionally controllable, to control working fluid which is supplied to a hydraulic actuator. According to the present invention, provided is a device for controlling construction equipment, comprising: a remote control valve for outputting a secondary signal pressure which is proportionate to the amount calibrated by an operator; a calibrated amount detection means for detecting the secondary signal pressure of the remote control valve; an electro proportional pressure reducing valve for outputting the secondary signal pressure; first and second shuttle valves, each of the shuttle valves having an input portion on one side which connects to the secondary signal pressure of the remote control valve, and an input portion on the other side to which output-side ports of the electro proportional pressure reducing valve connect respectively; a directional control spool for controlling the actuation of the hydraulic actuator when exchanging by means of the signal pressure output from the first and second shuttle valves; and a controller for outputting a control signal to the electro proportional pressure reducing valve so as to correspond to the operation amount which is input by the operation amount detection means.

    摘要翻译： 提供一种用于控制用于控制可定向控制的MCV的卷轴的施工设备的控制装置，以控制供应给液压致动器的工作流体。 根据本发明，提供一种用于控制施工设备的装置，包括：遥控阀，用于输出与由操作者校准的量成比例的次级信号压力; 校准量检测装置，用于检测遥控阀的次级信号压; 用于输出次级信号压力的电子比例减压阀; 第一和第二梭阀，每个梭阀的一侧上具有与远程控制阀的次级信号压力相连的输入部分和另一侧的输入部分，电动比例压力的输出侧端口 减压阀连接分别; 方向控制阀芯，用于在通过从第一和第二梭阀输出的信号压力进行交换时控制液压致动器的致动; 以及控制器，用于将控制信号输出到电子比例减压阀，以对应于由操作量检测装置输入的操作量。

    Traveling system for heavy construction equipment
    9.
    发明公开
    Traveling system for heavy construction equipment 有权
    Fahrsystemfürschwere Baumaschine

    公开(公告)号：EP1750017A1

    公开(公告)日：2007-02-07

    申请号：EP06016096.7

    申请日：2006-08-02

    申请人： Volvo Construction Equipment Holding Sweden AB

    发明人： Lee, Jae Hoon

    IPC分类号： F15B11/16 ,  F15B11/17 ,  F15B21/08 ,  E02F9/22

    CPC分类号： F15B11/167 ,  E02F9/2242 ,  E02F9/2253 ,  F15B11/17 ,  F15B21/082 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/2652 ,  F15B2211/3116 ,  F15B2211/6316 ,  F15B2211/6654 ,  F15B2211/6658 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/75 ,  F15B2211/8606

    摘要： A traveling system for heavy construction equipment is disclosed, which can prevent a flow rate of a hydraulic fluid to be supplied to a traveling spool from being suddenly decreased when a traveling device and a working device are simultaneously operated, and thus can minimize operation shock due to sudden reduction in traveling speed. The traveling system includes a sensing device that detects manipulation of an operation lever of the working device or manipulation of a traveling pedal installed in the operation lever or the traveling pedal and outputs an electric signal to a controller in a specific operation mode. The traveling system also includes first and second variable displacement hydraulic pumps that are driven by an engine and have the same maximum capacity arid a main control valve that controls the flow direction of a hydraulic fluid discharged from the hydraulic pumps.

    摘要翻译： 公开了一种用于重型施工设备的行驶系统，其可以防止在行驶装置和工作装置同时操作时供给到行驶用卷轴的液压流体的流量突然减小，从而可以最小化操作冲击 降低行驶速度。 行驶系统包括检测作业装置的操作杆的操作或者操作安装在操作杆或行驶踏板上的行驶踏板的感测装置，并以特定的操作模式向控制器输出电信号。 行驶系统还包括由发动机驱动且具有相同最大容量的第一和第二可变排量液压泵，以及控制从液压泵排出的液压流体的流动方向的主控制阀。

    Hydraulic control system for working machine
    10.
    发明公开
    Hydraulic control system for working machine 有权
    Hydraulisches Steuersystem einer Arbeitsmaschine

    公开(公告)号：EP1577566A3

    公开(公告)日：2006-01-11

    申请号：EP05101872.9

    申请日：2005-03-10

    申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.

    发明人： Sugano, Naoki

    IPC分类号： F15B21/08 ,  F15B11/16

    CPC分类号： F15B21/082 ,  F15B11/0423 ,  F15B11/167 ,  F15B21/087 ,  F15B2211/20546 ,  F15B2211/255 ,  F15B2211/3052 ,  F15B2211/3111 ,  F15B2211/329 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/50545 ,  F15B2211/5151 ,  F15B2211/5153 ,  F15B2211/528 ,  F15B2211/55 ,  F15B2211/62 ,  F15B2211/6316 ,  F15B2211/6652 ,  F15B2211/7058 ,  F16H61/4017 ,  F16H61/4061 ,  F16H61/4148 ,  F16H61/431 ,  F16H2059/6861

    摘要： A hydraulic control system for a working machine according to the present invention comprises a hydraulic pump (1) for supplying working oil to a hydraulic actuator (2) through a control valve (3), a relief mechanism (4) disposed on the discharge side of the pump, the relief mechanism assuming an open state when a pump discharge pressure which varies according to the pump flow rate exceeds a predetermined pressure and assuming a closed state when the pump discharge pressure becomes the predetermined one or lower, an ordinary control means (13a,13b,15) for controlling the pump flow rate in accordance with working information, and a pressure feedback control means (9,15) for controlling the pump flow rate in accordance with the pump discharge pressure. In this system, out of controls performed by both control means, control wherein the flow rate by one control becomes smaller than that of the other is selected, thereby opening/closing control of the relief mechanism (4) is performed. According to this, it is possible to decrease the relief loss and improve the energy efficiency while making the most of the ordinary control.

    摘要翻译： 根据本发明的用于工作机械的液压控制系统包括：液压泵（1），用于通过控制阀（3）向液压致动器（2）供应工作油;释放机构（4），设置在排出侧 的泵，当泵排出压力根据泵流量变化的泵排出压力超过预定压力并且当泵排出压力变为预定值或者更低时处于关闭状态时，释放机构呈现打开状态，普通控制装置 13a，13b，15），用于根据工作信息控制泵流量;以及压力反馈控制装置（9,15），用于根据泵排出压力控制泵流量。 在该系统中，由两个控制装置执行的控制之外，选择通过一个控制的流量变得小于另一个控制的流量的控制，从而执行减压机构（4）的打开/关闭控制。 据此，可以在最大限度地进行普通控制的同时，减小泄压损失，提高能源效率。