| 摘要 |
There is disclosed a plow constructed for displacement, by a traction vehicle, along a predetermined direction. It comprises a cultivator having a generally Ushaped frame with a pair of lateral arms parallel to the above direction and interconnected by a bight. The cultivator further has a soil-chiselling assembly mounted on and transversely between the arms, this assembly including a horizontal rotary shaft provided with longitudinally spaced sets of coplanar flat radial shares. The cultivator is mounted on retractable wheels movable between the first position, wherein the wheels engage the soil for displacement of said cultivator with the soil-chiselling assembly stands inoperative above the soil, and a second position, wherein the wheels are retracted and stand above the soil and the soil-chiselling assembly operatively engages the soil. Finally, the plow has a soil-lump breaker which is mounted on the free ends of the lateral arms of the cultivator frame and which includes lump-breaking elements disposed between the spaced sets of shares.
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