密植棉秆对行铲拔铺放机设计与试验
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塔里木大学现代农业工程重点实验室开放课题项目(TDNG2020201)、兵团重大科技项目(2018AA001/03)、国家重点研发计划项目(2016YFD0300302)和兵团重点研发计划项目(2019AB007)


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

    为实现机采棉密植棉秆机械化对行、低耗收获目标,融合机采棉宽窄行密植种植农艺要求,基于对行低耗铲切方法和反向推拔作用原理,设计了一种密植棉秆对行铲拔铺放机。简述了整机结构和工作原理,结合相关作业性能要求,通过分析计算确定了对行铲切装置、铲切调节装置和齿型推拔辊的结构参数,并完成了关键部件的工作参数分析,确定对行铲切装置最小铲倾角为5°、铲切调节装置铲倾角调节范围为5.00°~8.95°、齿型推拔辊转速取值范围为97.66~391.16r/min。田间试验表明,该机可实现压、铲、拔、铺放棉秆等多项作业,且具有分离泥土的功能;根据试验田密植棉秆根系扎根深度,调整机组使对行铲切装置铲切深度约为11.5cm,此时对应铲倾角约为7.1°,齿型推拔辊旋转半径为245mm;当机组作业速度为2.76~3.39km/h、齿型推拔辊转速为156~174r/min时,该机拔净率为90.87%~91.42%,生产率为0.63~0.77hm2/h,机组作业性能稳定,满足密植棉秆对行整秆铲拔作业要求。

    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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贺小伟,刘金秀,王旭峰,徐杨,胡灿,李义博.密植棉秆对行铲拔铺放机设计与试验[J].农业机械学报,2020,51(10):142-151. HE Xiaowei, LIU Jinxiu, WANG Xufeng, XU Yang, HU Can, LI Yibo. Design and Experiment of Row-controlled Shoveling and Drawing Placement Machine for Cotton-stalks Based on Agronomy of Close Planting[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(10):142-151.

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  • 收稿日期:2020-07-20
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  • 在线发布日期: 2020-10-10
  • 出版日期: 2020-10-10