Rotary shipped grass burier

The utility model belongs to a boat-type paddy straw tiller, which comprises a power machine, a transmission unit, a travelling unit, a controlling unit, a suspension unit and a lifting unit provided on the ship hull. The core of the utility model is a rotary tillage and bury-grass device attached at the end of the ship hull, which comprises two groups of eudipleural spiral knife rollers, and a plurality of horizontal knives and vertical knives with positive screws and reciprocal screws arranged on the helical knife rollers. The utility model is provided with multiple purpose without affecting the hitching and use of the original equipment which widely meets the grass burying and rototilling tillage operation in deep or shallow mud foot paddy fields of rice, rape, wheat and so on with residual stubble from 0 mm to 700 mm, and completes combined operation processes of pressing stalk, rotary tilling, burying stalk, pulverizing soil, and leveling ground at one time, and meets the sowing and planting agronomy requirements of the next crops with high quality. According to the test of Hubei Agricultural Machinery Evaluation Station of China, the working width of the utility model can reach 700mm, the average cultivating depth reaches over 110mm, the stability of cultivating depth reaches 90.7%, the clod-disintegration rate reaches 90%, the adaptive mud foot depth reaches over 350mm, the adaptive straw height reaches 700mm more or less, and the straw coverage rate reaches 94.6%.