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    • 1. 发明申请
    • TRANSFER CASE WITH STATIONARY LOW RANGE PLANETARY
    • 带移动小范围运输的转运箱
    • WO2012121771A3
    • 2012-11-29
    • PCT/US2011064843
    • 2011-12-14
    • MAGNA POWERTRAIN AMERICA INCLARKIN BRADLEY RBRADLEY DOUGLAS O
    • LARKIN BRADLEY RBRADLEY DOUGLAS O
    • B60K23/08B60K17/344
    • B60K17/344B60K23/08F16H37/065F16H63/16F16H63/3069
    • A transfer case (10) includes an input shaft (12), first and second output shafts (14, 16) and a planetary gearset (18) having a sun gear (74), a ring gear (70), a carrier (84, 90) and a pinion gear (78) meshingly engaged with the sun and ring gears. A range actuator (20) includes first, second and third range sleeves (22, 24, 26) abutted in series being axially translatable between a first position (H) to provide a drive connection between the input shaft (12) and the first output shaft (14), a second position (HL) providing a direct drive ratio connection between the input shaft (12) and the first output shaft (14) as well as the input shaft (12) and a second output shaft (16), and a third position (L) to provide a reduced speed drive ratio connection between the input shaft (12) and the first output shaft (14) as well as the input shaft (12) and the second output shaft (16). The gears of the planetary gearset (18) are not driven when the range sleeves are at the first and second positions.
    • 传送箱(10)包括输入轴(12),第一和第二输出轴(14,16)和具有太阳齿轮(74),齿圈(70),载体(84)的行星齿轮组 ,90)和与太阳和环形齿轮啮合的小齿轮(78)。 距离致动器(​​20)包括串联邻接的第一,第二和第三距离套筒(22,24,26),其可在第一位置(H)之间轴向平移,以提供输入轴(12)和第一输出 轴(14),提供输入轴(12)和第一输出轴(14)以及输入轴(12)和第二输出轴(16)之间的直接驱动比连接的第二位置(HL) 以及第三位置(L),用于提供输入轴(12)和第一输出轴(14)以及输入轴(12)和第二输出轴(16)之间的减速驱动比连接。 当范围套筒处于第一和第二位置时,行星齿轮组(18)的齿轮不被驱动。