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    • 2. 发明授权
    • Device for controlling the operation of power excavators
    • 控制动力挖掘机运行的装置
    • US5995893A
    • 1999-11-30
    • US751200
    • 1996-11-15
    • Jin Han LeeJeong Chul Lee
    • Jin Han LeeJeong Chul Lee
    • E02F9/22E02F9/20G05G9/047B66F9/00
    • G05G9/047E02F9/2004
    • A device for controlling the operation of power excavators includes a control lever which is handled simply by one hand, which is different from the prior art systems having multiple control levers necessarily handled by both hands. The control lever consists of a plurality of links which are jointed together in such a way that the intuitive handling directions of the links are identified with the actual moving directions of the actuators. The control lever thus adds significant convenience for the operator when operating the actuators of the excavator. An excavator with the above control device can be easily and effectively operated by an unskilled operator even for delicate work such as a land finishing work or loading work, both of which tasks are generally known in the art to require a highly-skilled operator.
    • 用于控制动力挖掘机的操作的装置包括一只手简单地操纵的控制杆,该控制杆与具有必须由双手处理的多个控制杆的现有技术系统不同。 控制杆由连接在一起的多个连杆组成,使得链节的直观操纵方向与致动器的实际移动方向一致。 因此,当操作挖掘机的致动器时,控制杆为操作者增加了显着的便利。 具有上述控制装置的挖掘机可以由不熟练的操作者容易且有效地操作,即使是诸如陆地整理工作或装载作业的精细工作,这两个任务在本领域中通常是已知的,以需要高技能的操作者。
    • 3. 发明授权
    • Control system of an excavator
    • 挖掘机控制系统
    • US5704429A
    • 1998-01-06
    • US762990
    • 1996-12-10
    • Jin Han LeeJeong Chul Lee
    • Jin Han LeeJeong Chul Lee
    • E02F9/20E02F3/32
    • E02F9/2004E02F9/2025
    • A control system of an excavator. The excavator includes a lower running body, an upper pivoting body, a working device having a plurality of links attached to the upper pivoting body, a pivoting device, and a running device, actuators for actuating the working device, the pivoting device, and the running device, hydraulic control valves for controlling quantities of hydraulic fluid supplied to the actuators, sensors for detecting relative angular positions of the links, and a control system. The control system includes a pair of manipulating devices each of which can be manipulated in at least three directions so as to output electrical signals proportional to deviated amounts in selected directions among the directions from a neutral position thereof, a switch board on which a plurality of function switch are installed, for outputting a signal in accordance with a selected function and displaying the selected function, a control section for controlling quantifies of hydraulic fluid supplied to the hydraulic cylinders and the hydraulic motors by receiving signals from the manipulating device, the switch board, and the angle detecting sensors and transferring the signals to the hydraulic control valves.
    • 挖掘机的控制系统。 挖掘机包括下行进体,上枢转体,具有附接到上枢转体的多个连杆的工作装置,枢转装置和行走装置,用于致动工作装置,枢转装置和 运行装置,用于控制供应到致动器的液压流体的量的液压控制阀,用于检测连杆的相对角位置的传感器和控制系统。 控制系统包括一对操纵装置,每个操纵装置可以在至少三个方向上被操纵,从而从其中性位置的方向输出与选定方向上的偏离量成比例的电信号;开关板,多个 功能开关,用于根据选择的功能输出信号并显示所选择的功能;控制部分,用于通过接收来自操纵装置的信号来控制供给液压缸和液压马达的液压流体的量化,开关板 和角度检测传感器,并将信号传送到液压控制阀。
    • 4. 发明授权
    • Flow rate control apparatus for oil-hydraulic pump
    • 油压泵流量控制装置
    • US5303551A
    • 1994-04-19
    • US981218
    • 1992-11-25
    • Jin-Han Lee
    • Jin-Han Lee
    • E02F9/22F02D29/04F16D31/02
    • F02D29/04E02F9/2221E02F9/2246E02F9/2292E02F9/2296
    • The present invention relates to a flow rate control apparatus for a hydraulic pump which is employed suitably in a hydraulic excavator or a hydraulic crane and driven by a rotating force of a motor. The flow rate control apparatus controls the discharging flow rate of the hydraulic pump to utilize the output power of the motor without an overload applied to the motor, and optimally controls the output flow rate of the pump depending upon an operation signal to provide an excellent operating characteristic to an operator under a high load operating condition applied to a hydraulic machine having hydraulic actuators driven on the basis of the discharge flow of the hydraulic pump.
    • 本发明涉及一种用于液压泵的流量控制装置,其适用于液压挖掘机或液压起重机并由马达的旋转力驱动。 流量控制装置控制液压泵的排出流量,以利用电动机的输出功率,而不会对电动机施加过载,并根据操作信号最佳地控制泵的输出流量,以提供良好的操作 特征在于在高负载运行条件下的操作者,该液压机械具有基于液压泵的排放流动驱动的液压致动器。