Driving device for three-wheel and four-wheel motorcycle

The utility model relates to a driving device for a three-wheel and a four-wheel motorcycles, which comprises a driving shaft, speed change gears, a speed change lever and a differential, wherein the gears of a crank shaft are engaged with speed change driving gears, inner clutch speed change driven gears are respectively engaged with the corresponding speed change driving gears, the gears of the speed change driven gears are engaged with a basin fluted disc of the differential, and a crank, the speed change gears and the differential are arranged in a casing. The driving members of the utility model are engaged directly, so the utility model has the advantages of compact structure, direct transmission, low power consumption of the intermediate transmission, low energy consumption, fuel oil saving, high efficiency, good isolation effect on the members are enclosed in the same casing, small vibration and noise, cleanliness, not easy polluted performance, high stability and less abrasion, can save installing space for compact enclosed structure and is convenient for repair and maintenance.