| 摘要 |
FIELD: transport engineering; small-size tractors. SUBSTANCE: proposed vehicle has additional chain drive with driving gear and two driven forward and reverse gears arranged at different sides of drive chain passed over the gears. Driving gear of chain drive is secured on engine shaft. Each leg of transmission includes two belt drives, forward and reverse, respectively, whose driven pulleys are secured on one shaft together with driving link of final drive of wheels, and driving pulleys are secured, respectively, on shafts of chain drive forward and reverse driven gears. Control lever with tension roller is installed for alternate engagement with running off spans of forward and reverse drive belts and it has intermediate neutral position. EFFECT: simplified design, improved performance characteristics of vehicle. 2 cl, 2 dwg |
