Multispeed reversing layshaft gear - has max. of two in-line double clutches with common disc carrier and four gear trains

摘要

A multispeed reversing change-speed gear has an input gear (1) driven by an input shaft (20) and forms a gear train together with second and third gears (2, 3). The last two gears of the train are rotated in the same direction and are connected to fourth and fifth gears (4, 5) by respective first and second directional clutches (KV, KR). The fourth and fifth gears mesh. The fourth gear is connectible via a first engageable clutch (K1) to a sixth gear (6), or the fifth fear is connectible via a second engageable clutch (K2) to a seventh gear (7) and simultaneously with an eighth gear (8) fixed to the seventh gear, or a ninth gear (9) which is in engagement with the eighth and connected to an output shaft of the reversing change-speed gear.