FIELD: transport engineering; vehicle transmissions.
SUBSTANCE: gear 11 and cluster of gears 9 and 10 are freely fitted on transmission secondary shaft 3. Shifter sleeve 24 (B) is arranged on hub of secondary shaft 3 between gear 11 and cluster of gears 9 and 10. Two gears 7 and 8 on primary shaft 2 are united into cluster and are arranged opposite to shifter sleeve of secondary shaft 3. Gear rim 18 of output shaft 4 of carrier 14 is two-position one. Gear rim 19 of output shaft 5 of set 1 is three-position one. Shifter sleeve 25 (C) on said rim has three internal gear rims. Gear rim 28 with internal and external meshing teeth is rigidly secured on slider 27 of shifter sleeve 25(C), external meshing teeth of gear rim being engaged with three-position gear rim of set housing.
EFFECT: improved operating capabilities of vehicle owing to optimum distribution of gears over range, improved gearshift mechanism and reduced metal usage of set.
2 dwg
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