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    • 1. 发明申请
    • LINK DEVICE FOR HYDRAULIC SHOVEL
    • 液压轴连接装置
    • WO1996030597A1
    • 1996-10-03
    • PCT/JP1996000826
    • 1996-03-28
    • KOMATSU LTD.UEHARA, KazuoYAMAGUCHI, HiromasaISHIZAKI, Naoki
    • KOMATSU LTD.
    • E02F03/32
    • E02F3/302
    • A link device for a hydraulic shovel that facilitates horizontal digging by the hydraulic shovel. The link device comprises a power lever (19) having a first fulcrum connected to a boom (2) via a boom pin (4) in such a manner as to swivel thereat, a second fulcrum connected to a boom cylinder (5) via a boom head pin (18) in such a manner as to swivel thereat and a third fulcrum mounted on an arm pin (20), and a power rod (22) connected to an arm power pin (21) mounted on an arm (7) at one end and to the arm pin (20) at the other end thereof. When the arm (7) is swivelled by extending or contracting an arm cylinder (10), the boom (2) is caused to rise or fall in synchronism therewith, whereby the tip of a bucket (12) is moved linearly.
    • 用于液压挖掘机的连杆装置,其便于通过液压挖掘机的水平挖掘。 连杆装置包括一个动力杆(19),其具有第一支点,该第一支点经由悬臂销(4)以悬臂方式连接到悬臂(2),第二支点经由臂架 悬臂头销(18),以及安装在臂销(20)上的第三支点,以及连接到安装在臂(7)上的臂电源销(21))的动力杆(22) 在另一端处的一端和臂销(20)。 当臂(7)通过伸缩臂(10)的伸缩而旋转时,使起重臂(2)与其同步地上升或下降,从而使铲斗(12)的前端线性移动。
    • 3. 发明申请
    • ROTATION CONTROL APPARATUS FOR ROTARY ACTUATORS
    • 旋转执行器旋转控制装置
    • WO1996030650A1
    • 1996-10-03
    • PCT/JP1996000751
    • 1996-03-22
    • KOMATSU LTD.ISHIZAKI, NaokiUEHARA, KazuoYAMAGUCHI, Hiromasa
    • KOMATSU LTD.
    • F15B09/09
    • F15B9/09
    • A low-cost, precision rotation control apparatus suitable for a large-output rotary actuator. This apparatus comprises a hydraulic rotary servo valve (4) having a rotary spool (40) and a rotary sleeve (20); an electric motor (5) having an output shaft connected to either the rotary spool (40) or the rotary spool (20), the motor being electrically controlled to vary its rotational speed and angular position; a hydraulic motor (3) having an output shaft connected to the remaining one of the rotary spool (40) and rotary sleeve (20); a hydraulic pump (1) adapted to drive the hydraulic motor (3) via the hydraulic rotary servo valve (4); and a driving power source (2) for driving the hydraulic pump (1).
    • 适用于大输出旋转执行器的低成本精密旋转控制装置。 该装置包括具有旋转卷轴(40)和旋转套筒(20)的液压旋转伺服阀(4)。 具有连接到旋转卷轴(40)或旋转卷轴(20)的输出轴的电动机(5),电动机被电控制以改变其转速和角度位置; 液压马达(3),其输出轴连接到旋转滑阀(40)和旋转套筒(20)中的剩余的一个; 液压泵(1),其经由液压旋转伺服阀(4)驱动液压马达(3); 和用于驱动液压泵(1)的驱动动力源(2)。