Gear unit for connecting drive machine with drive wheels of motor car, has drive unit connected with sun gear of planetary drives and first coupling element, and driven unit connected with gear carrier and second and third coupling elements

摘要

The gear unit has four planetary drives (P1a-P4a) arranged one behind another along a main rotational axis (10a), and six coupling units (S1a-S6a) for switching nine forward gears. A drive unit (11a) is connected with a sun gear (P41a) of one planetary drive and a first coupling element (S21a) in a torque-proof manner. A driven unit (12a) is connected with a planetary gear carrier (P42a) of the planetary drive and second and third coupling elements (S52a, S61a) in a torque-proof manner. Another sun gear (P11a) is connected with a gearbox housing (13a).