Power output device of deep scarification land preparation machine

Disclosed is a power output device of a deep scarification land preparation machine. The power output device comprises an engine installed on a frame, a transmission shaft, a power divider, a front gearbox and a rear gearbox, wherein the output shaft of the engine is connected with the input shaft of the power divider, the output shaft of the power divider is connected with the input shaft of the front gearbox, the output shaft of the front gearbox is connected with the input shaft of the rear gearbox through the transmission shaft, and power is sequentially transmitted to the front gearbox, the transmission shaft and the rear gear box by the engine through the power divider and is then transmitted to an agricultural implement by the output shaft of the rear gearbox. The power output device of the deep scarification land preparation machine can achieve speed changing, torque changing and power transmission interrupting and be optimally matched with the engine, the rotating speed and the torque of the whole ma