Speed change mechanism for swash plate type hydraulic motor
    1.
    发明授权
    Speed change mechanism for swash plate type hydraulic motor 失效
    斜盘式液压马达变速机构

    公开(公告)号:US5687631A

    公开(公告)日:1997-11-18

    申请号:US366746

    申请日:1994-12-30

    CPC分类号: F16H39/02 F04B1/324

    摘要: A two-stage speed change mechanism for a swash plate hydraulic motor, in which a swash plate is moved even during the revolution of the swash type hydraulic motor, thereby making it possible to vary the exclusion volume. An accommodating bore for accommodating a fixing pin is formed on a side wall of a housing. Piston for shifting the swash plate is provided, and control valves 14,15 and 16 each including a pilot line 14, a spool 15 and a compression spring 16 are installed for the actuation of the swash plate shifting piston 3. Thus the exclusion volume can be safely varied even during the rotating of the hydraulic motor.

    摘要翻译: 用于旋转斜盘液压马达的两级变速机构,即使在旋转斜盘式液压马达的旋转期间旋转斜盘也能移动,从而可以改变排除体积。 用于容纳固定销的容纳孔形成在壳体的侧壁上。 提供了用于移动斜盘的活塞,并且安装了各自包括先导管线14,阀芯15和压缩弹簧16的控制阀14,15和16,用于驱动斜板换档活塞3。 即使在液压马达的旋转期间也能安全地变化。

    Variable displacement mechanism for swash plate type hydraulic pump and
motor
    2.
    发明授权
    Variable displacement mechanism for swash plate type hydraulic pump and motor 失效
    斜盘式液压泵和电机可变排量机构

    公开(公告)号:US5630707A

    公开(公告)日:1997-05-20

    申请号:US412125

    申请日:1995-03-28

    CPC分类号: F04B1/2085

    摘要: A variable displacement mechanism for a swash plate hydraulic pump or motor, in which a swash plate, a swash plate guiding wall, a tilting control piston, and a swash plate tilting guiding and swash plate rotation preventing pin are included for varying the requiring flow rate (volumetric displacement) per revolution without the rotation of the swash plate even during the tilting of the swash plate angle and during the rotation of the hydraulic pump or motor. The periphery of the swash plate is spherical for smoothing the tilting of the swash plate, and a securing pin accommodating slot is formed on the lower portion of the swash plate. Further, there are provided a securing pin for preventing rotation of the swash plate, and a bore formed on the bottom of a front cover for installing the securing pin. A housing or the front cover is provided with a guide wall for guiding the tilting of the swash plate, so that the volumetric displacement can be varied even during the rotation of the hydraulic pump or motor, thereby varying the discharge rate of the hydraulic pump or varying the rotating speed of the hydraulic motor in a safe manner.

    摘要翻译: 用于斜盘液压泵或电动机的可变排量机构包括斜盘液压泵或电动机,其中包括斜盘,斜盘导向壁,倾斜控制活塞和斜盘倾斜导向和斜盘旋转防止销,用于改变要求流量 (体积位移),即使在斜盘角度的倾斜期间以及在液压泵或电动机的旋转期间也不旋转斜盘。 旋转斜盘的周边是球面的,用于平滑斜盘的倾斜,并且在斜盘的下部形成固定销容纳槽。 此外,设置有用于防止斜盘旋转的固定销和形成在前盖的底部上的孔,用于安装固定销。 壳体或前盖设置有用于引导斜盘倾斜的引导壁,使得即使在液压泵或电动机的旋转期间也可以改变体积位移,从而改变液压泵的排出速率或 以安全的方式改变液压马达的转速。