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    Work machine
    1.
    发明授权
    Work machine 有权

    公开(公告)号：US12077933B2

    公开(公告)日：2024-09-03

    申请号：US17437879

    申请日：2020-09-23

    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Hisami Nakano ,  Hiroaki Tanaka ,  Yusuke Suzuki

    IPC: E02F3/43 ,  E02F9/20 ,  E02F9/22

    CPC classification number: E02F3/439 ,  E02F3/436 ,  E02F9/2041 ,  E02F9/2228 ,  E02F9/2285 ,  E02F9/2292

    Abstract: Provided is a hydraulic excavator including a controller that can control a work device by utilizing an excavation work control for causing a claw tip of a bucket to move along a predetermined target surface and a leveling work control for causing the bucket to move along the target surface while maintaining the posture of the bucket with respect to the target surface, in which: the controller, based on posture data and size data on a work device and position data on the target surface, calculates an arm tip difference Dva that is the distance from the tip of an arm to the target surface; and the controller executes the leveling work control in a case of the calculated arm tip difference being equal to or less than a predetermined threshold dv1, there being no input of a bucket operation to an operation lever, and there being an input of an arm operation to the operation lever, and otherwise executes the excavation work control.

    AUTOMATIC LEVELING SYSTEM
    2.
    发明公开
    AUTOMATIC LEVELING SYSTEM 审中-公开

    公开(公告)号：US20230313489A1

    公开(公告)日：2023-10-05

    申请号：US18044605

    申请日：2021-08-31

    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.

    Inventor： Nobuhiro FUKUO ,  Daisuke NODA

    IPC: E02F3/43 ,  E02F9/26

    CPC classification number: E02F3/436 ,  E02F9/262

    Abstract: Provided is an automatic leveling system restraining leveling-objects from collapsing. The automatic leveling system includes a work machine that performs leveling motion, an imaging device, and a controller. The imaging device acquires three-dimensional information about the shape and position of at least one of the leveling-objects and a peripheral object. The work machine is provided with a work attachment including a tip attachment. The controller sets a leveling area based on the acquired three-dimensional information and makes the work machine perform the leveling motion by the tip attachment within the leveling area.

    Intelligent boom control hydraulic system
    4.
    发明授权
    Intelligent boom control hydraulic system 有权
    智能臂控液压系统

    公开(公告)号：US09297148B2

    公开(公告)日：2016-03-29

    申请号：US13949355

    申请日：2013-07-24

    Applicant: Deere & Company

    Inventor： Henry J. Stulen ,  Calin Raszga

    IPC: E02F3/43 ,  E02F9/22 ,  B66C23/00 ,  F15B21/14

    CPC classification number: E02F9/2217 ,  B66C23/54 ,  E02F3/436 ,  E02F9/2296 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/3059 ,  F15B2211/50581 ,  F15B2211/6658 ,  F15B2211/88

    Abstract: An intelligent knuckle boom control system is disclosed where hoist and stick cylinders raise and lower main and stick booms, respectively, a base end control valve controls flow to the hoist and stick cylinder base ends, a hoist rod control valve controls flow to the hoist cylinder rod end, and a stick rod control valve controls flow to the stick cylinder rod end. A microprocessor computes control signals to direct flow through the control valves based on operator commands and boom position readings. The system can include an energy storage system for storing excess energy and releasing the stored energy, where the microprocessor directs storage of excess energy and release of stored energy. The energy storage system can include a hydraulic accumulator, an accumulator control valve and hydraulic pressure sensors; where the microprocessor receives pressure sensor readings and computes accumulator control valve control signals.

    Abstract translation: 公开了一种智能转向节臂控制系统，其中升降机和气缸分别升高和降低主悬臂和下悬臂，基端控制阀控制到起重机和气缸底端的流动，提升杆控制阀控制到起重缸的流量 杆端，杆杆控制阀控制流向棒棒杆端。 微处理器根据操作员指令和吊杆位置读数计算控制信号，以引导流过控制阀的流量。 该系统可以包括用于存储多余能量并释放存储的能量的能量存储系统，其中微处理器引导多余能量的储存和释放储存的能量。 储能系统可包括液压蓄能器，蓄能器控制阀和液压传感器; 微处理器接收压力传感器读数并计算累加器控制阀控制信号。

    METHOD AND SYSTEM FOR ORIENTING A TOOL
    5.
    发明申请
    METHOD AND SYSTEM FOR ORIENTING A TOOL 有权
    用于定向工具的方法和系统

    公开(公告)号：US20160054739A1

    公开(公告)日：2016-02-25

    申请号：US14831725

    申请日：2015-08-20

    Applicant: John Deere Forestry Oy

    Inventor： Mikko Palmroth ,  Marko Paakkunainen, ,  Vesa Siltanen

    IPC: G05D3/12 ,  A01G23/00

    CPC classification number: G05D3/12 ,  A01G23/00 ,  A01G23/081 ,  E02F3/4135 ,  E02F3/436 ,  E02F3/437 ,  E02F3/963 ,  E02F9/265 ,  G05B19/00

    Abstract: A system and a method for controlling a tool pivotably mounted to an articulated boom connected to a work machine having a control unit. The solution: 1) determining the direction a predetermined point of the boom or the tool is moving to, i.e. the moving direction, and 2) controlling orientation of the tool as a function of one or several predetermined dependencies, the predetermined dependencies defining at least the orientation of the tool in relation to the moving direction. According to an example the work machine is a forest machine.

    Abstract translation: 一种用于控制可枢转地安装到连接到具有控制单元的作业机械的铰接起重臂上的工具的系统和方法。 解决方案：1）确定动臂或工具移动的预定点的方向，即移动方向，以及2）根据一个或几个预定依赖关系控制工具的方向，预定的依赖关系至少限定 工具相对于移动方向的取向。 根据一个例子，工作机器是森林机器。

    CONTROL OF A BOOM CONSTRUCTION AND A TOOL ARTICULATED THERETO
    6.
    发明申请
    CONTROL OF A BOOM CONSTRUCTION AND A TOOL ARTICULATED THERETO 有权
    控制一个BOOM构造和一个工具

    公开(公告)号：US20130218424A1

    公开(公告)日：2013-08-22

    申请号：US13854606

    申请日：2013-04-01

    Applicant: John Deere Forestry Oy

    Inventor： Jerkko Jantti

    IPC: A01G23/081

    CPC classification number: A01G23/081 ,  E02F3/436 ,  E02F3/437 ,  E02F9/2033

    Abstract: A working apparatus comprises a working machine, a tool, a boom construction, and a control system. A first end of the boom construction is connected to the working machine. The tool is connected to an opposite second end of the boom construction. The boom construction comprises a first boom and a first actuator controlling the first boom, a second boom articulated to the first boom and a second actuator controlling the second boom, and a third actuator controlling the position of the tool. The control system has a link mode, a parallel mode, and a tool-levelling mode.

    Abstract translation: 工作装置包括作业机械，工具，动臂结构和控制系统。 动臂结构的第一端连接到作业机。 工具连接到动臂结构的相对的第二端。 动臂构造包括第一起重臂和控制第一起重臂的第一致动器，铰接到第一起重臂的第二起重臂和控制第二起重臂的第二致动器以及控制工具位置的第三致动器。 控制系统具有链接模式，并行模式和工具调平模式。

    Automatic loader bucket orientation control
    7.
    发明授权
    Automatic loader bucket orientation control 有权
    自动装载机铲斗定向控制

    公开(公告)号：US06763619B2

    公开(公告)日：2004-07-20

    申请号：US10285732

    申请日：2002-10-31

    Applicant: Scott Svend Hendron ,  Judson P. Clark ,  Bryan D. Sulzer

    Inventor： Scott Svend Hendron ,  Judson P. Clark ,  Bryan D. Sulzer

    IPC: G05D104

    CPC classification number: E02F3/436 ,  E02F3/433 ,  E02F3/964 ,  E02F9/2004 ,  E02F9/2203

    Abstract: The invention comprises a work vehicle, a boom attached to the vehicle, a tool pivotally attached to the boom, an actuator for controllably moving the tool about its pivot, and an angular velocity sensor for sensing the angular velocity of the tool. A controller is adapted to perform a tool auto-hold function, automatically maintaining an initial tool orientation by processing the angular velocity data and commanding movement of the tool actuator to hold the angular velocity at zero. The controller is adapted to discontinue the tool auto-hold function when the operator manipulates a tool command input device affecting tool actuator movement, and resume the tool auto-hold function at the new orientation affected by the operator. Manipulation of an auto-hold command input device allows the operator to selectively enable and disable the tool auto-hold function.

    Abstract translation: 本发明包括作业车辆，附接到车辆的动臂，可枢转地附接到动臂的工具，用于围绕其枢轴可控地移动工具的致动器和用于感测工具的角速度的角速度传感器。 控制器适于执行工具自动保持功能，通过处理角速度数据和指令刀具致动器的运动来保持角速度为零，自动维持初始刀具定向。 当操作员操作影响刀具执行器运动的刀具命令输入装置时，控制器适用于中止刀具自动保持功能，并在受操作者影响的新方向恢复刀具自动保持功能。 自动保持命令输入设备的操作允许操作员选择性地启用和禁用工具自动保持功能。

    Public works machine having a safety device for the manoeuvre of its working equipment
    8.
    发明授权
    Public works machine having a safety device for the manoeuvre of its working equipment 失效
    公共工程机器具有用于其工作设备操纵的安全装置

    公开(公告)号：US3905500A

    公开(公告)日：1975-09-16

    申请号：US44058174

    申请日：1974-02-07

    Applicant: POCLAIN SA

    Inventor： BOURGES BERNARD M

    IPC: E02F3/43 ,  E02F9/24 ,  F15B20/00 ,  E02F3/86

    CPC classification number: E02F3/436 ,  E02F3/433 ,  F15B20/00

    Abstract: A loader having a body on which is pivotally mounted a jib system and a bucket and which is operated by fluid motor means is provided with a discharge conduit extending from the bucket raising side of one of the fluid motor means and control valve means to open the conduit to fluid flow whereby movement of the bucket over the loader cab is prevented.

    Abstract translation: 具有主体的装载机枢转地安装在起重臂系统和铲斗上并且由流体马达装置操作的装置设置有从流体马达装置和控制阀装置之一的铲斗提升侧延伸的排放管道，以打开 导致流体流动，从而防止铲斗在装载机驾驶室上的移动。

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