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    • 7. 发明授权
    • Transmission apparatus for a working vehicle
    • 工作车辆用传动装置
    • US07179188B2
    • 2007-02-20
    • US10984865
    • 2004-11-10
    • Norihiro IshiiKoji Irikura
    • Norihiro IshiiKoji Irikura
    • F16H47/04
    • B60K17/3462B60K17/043B60K17/105B60K17/28B60Y2200/223F16H39/12F16H47/02F16H47/04
    • A transmission apparatus for a working vehicle comprises a hydrostatic transmission, a sun-and-planetary gearing unit, and an auxiliary speed changing system. The hydrostatic transmission includes a hydraulic pump driven by a prime mover equipped on the working vehicle, a hydraulic motor fluidly connected to the hydraulic pump, and a hollow motor shaft serving as an output shaft of the hydraulic motor. The sun-and-planetary gearing unit includes first, second and third elements arranged coaxial to the motor shaft. The first element is drivingly connected to the motor shaft so as to be rotated integrally with the motor shaft. The second element is drivingly connected to front wheels of the working vehicle. The third element is drivingly connected to rear wheels of the working vehicle and differentially connected to the second element through the first element. The auxiliary speed changing system is drivingly interposed between the hollow motor shaft and the first element.
    • 用于作业车辆的变速装置包括静液压变速器,太阳和行星齿轮单元和辅助变速系统。 静液压变速器包括由配备在作业车辆上的原动机驱动的液压泵,与液压泵流体连接的液压马达和用作液压马达的输出轴的中空马达轴。 太阳和行星齿轮传动装置包括与马达轴同轴设置的第一,第二和第三元件。 第一元件驱动地连接到电动机轴,以便与电动机轴一体旋转。 第二元件驱动地连接到作业车辆的前轮。 第三元件驱动地连接到作业车辆的后轮并通过第一元件差异地连接到第二元件。 辅助变速系统驱动地插入中空电动机轴和第一元件之间。