VEHICLE Russian patent published in 1995 - IPC

FIELD: transport and agricultural engineering. SUBSTANCE: device has frame 1 with sides resting of groups of three wheels, each. Each side group is connected through independent transmission train with engine 4 installed on frame 1. Each run of transmission has V-belt drive 6. Driving pulley 7 of drive 6 is rigidly secured on engine shaft and driven pulley 8 is coupled with input shaft of gearbox 9 whose output shaft is coupled with wheels of group by means of chain drives. Fitted on gearbox output shaft are two similar sprockets 11 of intermediate step-down chain drives. Driven sprocket 12 of one of intermediate drives is secured coaxially to driving sprocket of drive of rear wheel 14 and driven sprocket 15 of other intermediate chain drive is installed coaxially with driving sprocket 16 of step-down chain drive of middle wheel. Driven sprocket 17 of indicated drive is coupled with sprocket 18 of front wheel 20 by chain drive, gear ratio equal to unity. Ratio of diameters of sprockets in each of step-down drives and ratio of driven sprocket of each of intermediate chain drives and driving sprocket of chain step-down drives of rear wheel 14 and middle wheel 19 coaxial with driven sprocket are equal to each other. EFFECT: enlarged operating capabilities. 3 cl, 2 dwg