MULTIPLE-SPEED MISALIGNED SEMIPLANETARY GEARBOX

FIELD: transport engineering; vehicle transmissions. ^ SUBSTANCE: according to invention, gear 14 is secured on primary shaft 3, and gear 13 is secured on first tubular shaft 9 freely fitted on primary shaft 3. Gear rims 21 and 22 are fitted on shafts 3 and 9. Input shaft 2 with hub of three-position shifter sleeve 23 and additional driving shaft 4 are installed coaxially to shaft 3. Two gears 17 and 18 in meshing with gears 19 and 20 of secondary shaft 5 are secured on shaft 4. Gear 19 is fitted on shaft 5. Gear 20 is secured on second tubular shaft 10 freely installed on shaft 5. Gear rims 24 and 25 are secured on shafts 5 and 10. Shaft 6 with hub of two-position shifter sleeve 26 and sun gear 27 of planetary mechanism is installed coaxially to shaft 5. Gear 27 engages through planet pinions 31 with epicyclic wheel 32. Planet pinions 31 are freely fitted on axles of carrier 33. Two gear rims 34 and 35 are arranged on periphery of housing of carrier 33. Shaft 7 of carrier 33 with two position gear rim is arranged coaxially to shaft 5 and shaft 6. Third tubular shaft 11 of housing of epicyclic wheel with gear rim 38 is freely fitted on shaft 7. Output shaft 8 with hub of three-position shifter sleeve 40 is arranged coaxially to shaft 7. Sleeve 40 is movably coupled by guide 41 with two-rim shifter sleeve 42 arranged between gear rim 37 of housing 36 of epicyclic wheel 32 and gear rim 43 of gearbox case provided with two inner gear rims and one outer gear rim. ^ EFFECT: perfected design owing to reduction of metal usage and complexity. ^ 2 dwg