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    • 7. 发明授权
    • Variable displacement mechanism for swash plate type hydraulic pump and
motor
    • 斜盘式液压泵和电机可变排量机构
    • US5630707A
    • 1997-05-20
    • US412125
    • 1995-03-28
    • Hyong-Eui KimYoung-Bog Ham
    • Hyong-Eui KimYoung-Bog Ham
    • F04B27/08F03C1/06F03C1/253F03C1/30F03C1/40F04B1/20F04B1/26F04B1/32
    • F04B1/2085
    • 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.
    • 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。