WHEELED TRACTOR Russian patent published in 1995 - IPC

FIELD: agricultural and transport engineering. SUBSTANCE: to increase maneuverability of all-wheel-drive tractor use is made of additional friction clutch in drive of front driving axle-coupled kinematically with gearbox main shaft, drive of rear driving axle is disengaged by disengaging of all friction clutches of gearbox drive shaft, and rear axle center differential interlock is disengaged when front steerable wheels are turned through angle exceeding 50 degrees. Tractor moves at cornering owing to traction force developed by front driving axle. Tractor has engine whose crankshaft 1 is connected with gearbox drive shaft 4 by means of clutch 2. Gearbox drive shaft 4 has friction clutches 6 and freely fitted on gears 5 engaging with gears 5 of countershaft 22 meshing with mainshaft 9 through gears 7, 18 and clutch 8. Mainshaft 9 is coupled, through gears of final drive 10 and differential 13 with differential interlock 11, with final drives 12 and, through the latter, with rear wheels 14. Drive shaft of front driving axle 21 connected with front wheels 26 through gears 18, 19, 20 cam clutch 16, mainshaft 9, main friction clutch 15 with disks 17, freely fitted on gear 25, additional friction clutch 23 with friction disks 24, gears 31 and 3 engaged with crankshaft 1, gears of final drive 28, differential 29 and final drives 27. EFFECT: increased maneuverability of tractor. 1 dwg