| 摘要 |
A multi ratio drive operably connected to a drive shaft including a pinion gear rotatable by the drive shaft; a main shaft; a fixed ring gear fixed to the main shaft and engaged with the pinion gear; a differential shaft; a first drive chain having a first gear ratio; a second drive chain having a second gear ratio; a differential operably connected to the differential shaft; a first axle operably connected to the differential; and a second axle operably connected to the differential. A first slip clutch locks the first main shaft ring gear on the main shaft when the first drive chain is in the first drive chain engaged state; and the first slip clutch is operable to lock the first main shaft ring gear on the main shaft regardless of direction of main shaft rotation. |
