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    CONTROL SYSTEM FOR OPERATING WORK DEVICE FOR CONSTRUCTION MACHINE
    1.
    发明申请
    CONTROL SYSTEM FOR OPERATING WORK DEVICE FOR CONSTRUCTION MACHINE 审中-公开
    用于施工机械的操作装置的控制系统

    公开(公告)号：US20140238010A1

    公开(公告)日：2014-08-28

    申请号：US14348686

    申请日：2011-10-07

    申请人： Hea-Gyoon Joung ,  Young-Bog Song

    发明人： Hea-Gyoon Joung ,  Young-Bog Song

    IPC分类号： E02F9/22 ,  E02F9/12 ,  E02F3/42

    CPC分类号： E02F9/22 ,  E02F3/42 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2225 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3116 ,  F15B2211/3133

    摘要： Disclosed is a control system for controlling flow so as to allow simultaneous usage of a parallel flow path and a tandem flow path thereby reducing loss of pressure inside a control valve, when simultaneously operating work devices having different operating pressures. A control system for operating the work device, according to the present invention, provides the control system for operating the work device for a construction machine, comprising: first and second hydraulic pumps that are connected to an engine; a revolution control valve, an arm control valve, and a left driving control valve, which are installed on a first center bypass path of the first hydraulic pump, and each of which is connected via the parallel flow path; a boom control valve, a bucket control valve, and a right driving valve, which are installed on a second center bypass path of the second hydraulic pump, and each of which is connected via the parallel flow path; a pressure generation device; a bleed flow path, which is formed on a control spool at a lower side of a boom of the boom control valve, for maintaining an open state of the second center bypass path without closing same, when the boom control valve is switched so as to lower the boom; and a center bypass switch valve, which is installed on the lowermost side of the second center bypass path and is switched by means of a control signal for switching the boom control valve.

    摘要翻译： 公开了一种用于控制流动的控制系统，以便当同时操作具有不同操作压力的工作装置时，允许同时使用并联流动路径和串联流动路径，从而减少控制阀内部的压力损失。 根据本发明的用于操作工作装置的控制系统提供了用于操作建筑机械的作业装置的控制系统，包括：连接到发动机的第一和第二液压泵; 旋转控制阀，臂控制阀和左驱动控制阀，其安装在第一液压泵的第一中心旁路上，并且各自经由并联流路连接; 悬臂控制阀，铲斗控制阀和右驱动阀，其安装在第二液压泵的第二中心旁路上，并且各自经由并联流路连接; 压力发生装置; 排气流路，其形成在动臂控制阀的动臂的下侧的控制阀芯上，用于保持第二中心旁通路径的打开状态而不关闭，当动臂控制阀被切换为 降低繁荣 以及中心旁路切换阀，其安装在第二中心旁路路径的最下侧，并通过用于切换悬臂控制阀的控制信号进行切换。

    PRIORITY CONTROL SYSTEM FOR CONSTRUCTION MACHINE
    3.
    发明申请
    PRIORITY CONTROL SYSTEM FOR CONSTRUCTION MACHINE 有权
    建筑机械优先控制系统

    公开(公告)号：US20140245730A1

    公开(公告)日：2014-09-04

    申请号：US14349452

    申请日：2011-10-07

    申请人： Hea-Gyoon Joung ,  Young-Bog Song

    发明人： Hea-Gyoon Joung ,  Young-Bog Song

    IPC分类号： F15B13/02

    CPC分类号： F15B13/021 ,  E02F9/2037 ,  E02F9/2225 ,  E02F9/2228 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/04 ,  F15B11/16 ,  F15B2211/20546 ,  F15B2211/3116

    摘要： Disclosed is a lower track for mounting rubber pads on a track shoe to be attachable and detachable after assembling a steel plate which is adhered with divisionally formed rubber pads as a single unit without additionally perforating coupling through-holes in the track shoe when the rubber pad which forms the lower track and the track shoe which is formed of a metal material are coupled. The lower track of a crawler excavator according to the present invention comprises: first and second rubber pads which are divisionally formed; a first steel plate which supports the bottom surface of the first rubber pad by surrounding the same, and has first hooks formed on the bottom surface thereof and coupling holes formed in a connection stepped-portion.

    摘要翻译： 公开了一种用于将橡胶垫安装在履带板上的下轨道，用于在组装钢板之后可附接和拆卸，该钢板以分开形成的橡胶垫作为单个单元，而不需要在履带板中另外穿孔耦合通孔，当橡胶垫 其形成下轨道，并且由金属材料形成的履带板被联接。 根据本发明的履带式挖掘机的下轨道包括：分开形成的第一和第二橡胶垫; 第一钢板，其通过围绕其而支撑第一橡胶垫的底面，并且具有形成在其底表面上的第一钩和形成在连接阶梯部中的联接孔。