POWER TRANSMISSION OF TRACTOR WITH FOUR DRIVING WHEELS Russian patent published in 1997 - IPC

FIELD: transport engineering. SUBSTANCE: transmission has engine driven primary shaft and power takeoff shaft arranged in primary shaft, both shafts are placed in housing. Gears are mounted on primary outer shaft, and inner shaft is coupled through controlled clutch with input shaft of reduction gear of power takeoff shaft. First countershaft with set of gears controlled by synchronizer is arranged below input shafts in parallel with the latter. Drive shaft of front driving axle of tractor is arranged inside countershaft. This shaft couples output shaft with front driving axle. First countershaft is mechanically coupled with gear cluster and second countershaft which, in its turn, is coupled with gear cluster and output shaft, and drive shaft of front driving axle is arranged inside first countershaft which makes it possible to reduce vertical size of power transmission. EFFECT: enlarged operating capabilities. 1 dwg