The invention provides a self-propelled
system and a
snow sweeper. The self-propelled
system comprises a rack, a power body, a transmission
assembly, a first transmission wheel, a speed
reducer, a second transmission wheel and a first
transmission belt. The speed
reducer is installed on the rack and located below the first output shaft, the second output shaft is in transmission connection with the two wheels, the axes of the second output shaft, the first output shaft, the stirring cage shaft and the wheels are parallel, and the first
transmission belt is in transmission connection with the first transmission wheel and the second transmission wheel. Power sources for self-walking of the wheels are the same as power sources for rotation of the stirring cage shaft, so that a power device does not need to be additionally designed to drive the two wheels to self-walk, the overall structure is simplified, and the manufacturing cost is reduced. Meanwhile, the first transmission wheel, the first
transmission belt, the second transmission wheel and the speed
reducer are matched, redundant space of the whole
machine is not occupied,
power transmission can be achieved in a narrow space, the rotating speed can be reduced so as to meet the self-walking speed of the wheels, and therefore the self-walking stability is guaranteed.