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    • 10. 发明公开
    • Continuously-variable-ratio belt drive assembly
    • Riemenantrieb mit stufenloser,variablerÜbersetzung
    • EP1160490A1
    • 2001-12-05
    • EP01112752.9
    • 2001-05-25
    • Lombardini S.r.l.
    • Borghi GianniBordini Giorgio
    • F16H61/38F16H9/02
    • F16H63/067F16H55/56
    • The drive assembly has: an input member (10) and an intermediate shaft (11); an axial clutch device (20) for connecting the input member (10) and the intermediate shaft (11) in rotary manner; and a pulley (30) connected in rotary manner to the intermediate shaft (11) and defined by two half-pulleys (31, 32) movable axially with respect to each other and engaging a drive belt (33), the distance between the half-pulleys (31, 32) determining the winding radius of the belt (33). A push member (40), movable axially, along the intermediate shaft (11), between two limit positions, exerts thrust on the two half-pulleys (31, 32) to determine, in direct relation with its own axial position, the axial distance between the two half-pulleys, and alternatively exerts thrust on the clutch device (20) to release the clutch device when moved axially in the direction increasing the distance between the half-pulleys (31, 32). A control device (50) is also provided to vary, on command, the axial position of the push member (40).
    • 驱动组件具有:输入构件(10)和中间轴(11); 用于以旋转方式连接所述输入构件(10)和所述中间轴(11)的轴向离合器装置(20) 以及以相对于彼此轴向移动并与驱动带(33)接合的两个半带轮(31,32)限定的与所述中间轴(11)旋转的滑轮(30),所述两个半带轮 - 皮带轮(31,32),用于确定皮带(33)的卷绕半径。 沿着中间轴(11)在两个极限位置之间轴向移动的推动构件(40)在两个半带轮(31,32)上施加推力,以与其自身的轴向位置直接相关地确定轴向 两个半带轮之间的距离,并且另外在离合器装置(20)上施加推力以在沿增加半带轮(31,32)之间的距离的方向上轴向移动时释放离合器装置。 还提供控制装置(50)以根据命令改变推动构件(40)的轴向位置。