TWELVE-STAGE COAXIAL PLANETARY GEARBOX WITH DUAL CLUTCH

摘要

FIELD: transport.;SUBSTANCE: invention relates to vehicles and can be used in tow-trucks, tractors, road-building and other equipment. A dual clutch is arranged at the gearbox input side. A part of the clutch drive discs (28) is fitted on the primary shaft (6) while the other part (29) is fitted on a tubular shaft (10). Gears of the named shafts are engaged with gears (12, 13) of a countershaft (11) with five gears (12-16) fitted thereon. Two gears (15, 16) of the countershaft (11) are engaged with gears (20, 23) fitted on the secondary shaft (7). Three-position shift collar (22) is arranged between the gears (20, 23). The gear (19) engaged with a countershaft gear (14) and a three-position shift collar (21) is fitted on a countershaft tubular extension (8). A simple three-link planetary mechanism and three position clutch (35) is arranged at the gearbox output side.;EFFECT: invention is aimed at the expansion of operational characteristics of the vehicle by the increase of its passability and simplification of control, and also increase of durability at the expense of the increase of rigidity of the shafts at the reduction of their length.;2 dwg