Design and Experiment of Row-controlled Shoveling and Drawing Placement Machine for Cotton-stalks Based on Agronomy of Close Planting
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    Abstract:

    Mechanized harvesting of cottonstalks was the precondition of its industrial utilization on a large scale. In order to achieve the goal of rowcontrolled and lowconsumption of mechanized harvesting cottonstalks with close planting, combining the technical requirements of the agronomy of close planting with wide and narrow row of cotton, a kind of rowcontrolled shoveling and drawing placement machine for cottonstalks was designed based on the method of rowcontrolled and lowconsumption shoveling and the principle of reverse pushing and drawing. The structure and working principle of the whole machine were briefly described. Combining with the requirements of the relevant operation performances, the structural parameters of the rowcontrolled shoveling device, the adjustment device of shoveling and the pushingdrawing roller that was toothshaped were determined through theoretical analysis and calculation, and the working parameters of the key components were analyzed. It was determined that the minimum shoveling angle of the shoveling device was 5.00°, the regulation range of shoveling angle was 5.00°~8.95°, and the range of rotational speed of the pushingpulling roller with tooth type was 97.66~391.16r/min. The field test results showed that the machine could realize many operations, such as pressing, shoveling, pulling and laying cottonstalks, and had the function of separating soil. The parameters of the machine were adjusted. According to the depth of root system of cottonstalks in the test field, when the shoveling depth of the rowcontrolled shoveling device was about 11.5cm, the shoveling angle was about 7.1° and the rotational radius of the pushingpulling roller with tooth type was 245mm. When the working speed of machine was 2.76~3.39km/h and the rotating speed of the pushingpulling roller with tooth type was 156~174r/min, the pulling rate was 90.87%~91.42%, and the productivity was 0.63~0.77hm2/h. The rowcontrolled shoveling and drawing placement machine for cottonstalks had stable operation performance, which can meet the design requirements of shoveling and drawing for whole stalks based on the agronomy of close planting.

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History
  • Received:July 20,2020
  • Revised:
  • Adopted:
  • Online: October 10,2020
  • Published: October 10,2020
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