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    • 2. 发明授权
    • Driving system for a working vehicle
    • 一辆工作车辆的驾驶系统
    • US06401854B2
    • 2002-06-11
    • US09756235
    • 2001-01-09
    • Kazuhiko YanoToshiro AzumaRyota Ohashi
    • Kazuhiko YanoToshiro AzumaRyota Ohashi
    • B60K17356
    • B60K17/356B60K7/0015B60K17/105B60K23/08B60Y2200/223
    • A first hydraulic pump P1 driven by power of an engine and a first hydraulic motor M1 are fluidly connected so as to form a closed fluid circuit. An output shaft 2 of first hydraulic motor M1 is drivingly connected with a sub-transmission 3. The output power from sub-transmission 3 drives main-driving wheels 5 and also drives a second hydraulic pump P2 fluidly connected with a second hydraulic motor M2 for driving sub-driving wheels 6. A clutch 7 is interposed between an output shaft 4 of sub-transmission 3 and an input shaft 9 of second hydraulic pump P2 or on the output side of second hydraulic motor M2. Second hydraulic pump P2 or second hydraulic motor M2 has variable displacement, so that second hydraulic motor M2 is drivingly accelerated in proportion to the degree of turning operation of a steering operating tool 31. In case that a plurality of front reel mowers 8FL, 8FM and 8FR are disposed in front of the vehicle body, a pair of decelerator casings 29 are disposed on both lateral sides of transmission casing 1 for driving main-driving wheels 5. Decelerator casings 29 project horizontally forward and support main-driving wheels 5 respectively at their front portions. Middle front reel mower 8FM is disposed between left and right decelerator casings 29.
    • 由发动机的动力和第一液压马达M1驱动的第一液压泵P1流体地连接,形成封闭的流体回路。 第一液压马达M1的输出轴2与副变速器3驱动连接。副变速器3的输出动力驱动主驱动轮5,并且还驱动与第二液压马达M2流体连接的第二液压泵P2 驱动副驱动轮6.离合器7介于副变速器3的输出轴4和第二液压泵P2的输入轴9之间或第二液压马达M2的输出侧。 第二液压泵P2或第二液压马达M2具有可变排量,使得第二液压马达M2与转向操作工具31的转动程度成比例地驱动地加速。在多个前卷线锯机8FL,8FM和 8FR设置在车身前方,一对减速器壳体29设置在变速器壳体1的两侧,用于驱动主驱动轮5.减速器壳体29分别水平向前突出并支撑主驱动轮5 前部。 中间前卷取机8FM设置在左右减速箱28之间。
    • 8. 发明授权
    • Driving system for a working vehicle
    • 一辆工作车辆的驾驶系统
    • US06196348B1
    • 2001-03-06
    • US09119631
    • 1998-07-21
    • Kazuhiko YanoToshiro AzumaRyota Ohashi
    • Kazuhiko YanoToshiro AzumaRyota Ohashi
    • B60K17356
    • B60K17/356B60K7/0015B60K17/105B60K23/08B60Y2200/223
    • A first hydraulic pump P1 driven by power of an engine and a first hydraulic motor M1 are fluidly connected so as to form a closed fluid circuit. An output shaft 2 of first hydraulic motor M1 is drivingly connected with a subtransmission 3. The output power from sub-transmission 3 drives main-driving wheels 5 and also drives a second hydraulic pump P2 fluidly connected with a second hydraulic motor M2 for driving sub-driving wheels 6. A clutch 7 is interposed between an output shaft 4 of sub-transmission 3 and an input shaft 9 of second hydraulic pump P2 or on the output side of second hydraulic motor M2. Second hydraulic pump P2 or second hydraulic motor M2 has variable displacement, so that second hydraulic motor M2 is drivingly accelerated in proportion to the degree of turning operation of a steering operating tool 31. In case that a plurality of front reel mowers 8FL, 8FM and 8FR are disposed in front of the vehicle body, a pair of decelerator casings 29 are disposed on both lateral sides of transmission casing 1 for driving main-driving wheels 5. Decelerator casings 29 project horizontally forward and support main-driving wheels 5 respectively at their front portions. Middle front reel mower 8FM is disposed between left and right decelerator casings 29.
    • 由发动机的动力和第一液压马达M1驱动的第一液压泵P1流体地连接,形成封闭的流体回路。 第一液压马达M1的输出轴2与副变速器3驱动连接。来自副变速器3的输出动力驱动主驱动轮5,并且还驱动与第二液压马达M2流体连接的第二液压泵P2,以驱动副 驱动轮6.离合器7插入在副变速器3的输出轴4和第二液压泵P2的输入轴9之间或第二液压马达M2的输出侧。 第二液压泵P2或第二液压马达M2具有可变排量,使得第二液压马达M2与转向操作工具31的转动程度成比例地驱动地加速。在多个前卷取机割草机8FL,8FM和 8FR设置在车身前方,一对减速器壳体29设置在变速器壳体1的两侧,用于驱动主驱动轮5.减速器壳体29分别水平向前突出并支撑主驱动轮5 前部。 中间前卷取机8FM设置在左右减速箱28之间。