Design and Experiment of Rape Seedbed Preparation Ditch with Boot-like Acute Angle Groove Plough
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    Abstract:

    In view of the complex production conditions of heavy soil compaction in the middle and lower reaches of the Yangtze River, large fluctuations in water content, and large remaining rice straw residues, and the production requirements of rapeseed cultivation for rapeseed cultivation, an imitation shoe-shaped ditching plough used in combination with a driven plough combined rotary tiller was developed. According to the principle of the guide curve of the plow body and the modeling analysis of the three-sided wedge, a smooth parabola is selected as the sliding cutting edge curve, and the sliding angle of the sliding cutting edge curve is determined to range from 25 ° to 65 °, and the plough body entry angle is 30°. The opening angle of the plow tip is 60 °. Through the dynamic analysis of the interaction between the shoe-like sharp-angle ditch plow and the soil, the length of the fender is 400mm, and the inclination of the wing is 40 °~79.2 °. Field tests have shown that a shoe-like sharp-angle ditching plough can produce a trapezoidal ditch with a ditch width of 200~400 mm and a ditch depth of 175~250 mm. The ditch width and ditch depth stability are both above 90%, and the ditch bottom is flat. The ditch shape is obvious, when the inclination of the wing is 46 °, the ditch depth is 183mm, and the working speed is 0.6m/s, which meets the agronomic requirements of rapeseed planting, and provides a reference for the equipment design of the furrow ditch for rapeseed bed preparation

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History
  • Received:April 23,2020
  • Revised:May 23,2020
  • Adopted:May 25,2020
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