浙江农业学报 ›› 2022, Vol. 34 ›› Issue (3): 614-625.DOI: 10.3969/j.issn.1004-1524.2022.03.22

• 生物系统工程 • 上一篇    下一篇

导苗管式三七种苗栽植机构参数优化试验

秦伟1(), 于英杰1,*(), 赖庆辉1, 占才学2, 袁海阔3, 张海军1   

  1. 1.昆明理工大学 现代农业工程学院,云南 昆明 650500
    2.农业农村部南京农业机械化研究所,江苏 南京 210014
    3.吉林大学 生物与农业工程学院,吉林 长春 130022
  • 收稿日期:2020-09-20 出版日期:2022-03-25 发布日期:2022-03-30
  • 通讯作者: 于英杰
  • 作者简介:于英杰,E-mail: 646677093@qq.com
    秦伟(1994—),男,山东济南人,硕士,主要研究农业机械装备与计算机测控。E-mail: 1240672079@qq.com
  • 基金资助:
    国家自然科学基金(31960366);国家重点研发计划(2017YFD0700600);国家重点研发计划(2017YFD0700604);云南省重大科技专项(2018ZC001-3);昆明理工大学三七研究与开发省创新团队

Parameter optimization experiment of seedling guiding tube transplanting machine of Panax notoginseng seedling

QIN Wei1(), YU Yingjie1,*(), LAI Qinghui1, ZHAN Caixue2, YUAN Haikuo3, ZHANG Haijun1   

  1. 1. Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
    2. Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
    3. College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
  • Received:2020-09-20 Online:2022-03-25 Published:2022-03-30
  • Contact: YU Yingjie

摘要:

为实现三七种苗的定向移栽,设计了一种导苗管式三七种苗栽植机构,对导苗管式三七种苗栽植机构作业时的定向过程、导苗过程机理进行了分析,确定了影响种苗栽植的主要因素;采用EDEM软件进行了定向过程的单因素仿真试验,根据仿真试验结果搭建了定向台架,进行了定向机构定向性能的正交试验,确定了定向机构优化后的工作参数组合。选取机组前进速度、定向盘转速和导苗管倾斜角度为试验因素,进行三因素五水平正交旋转中心组合试验,建立了株距合格率和重栽率的数学模型,分析了各试验因素及其交互作用对株距合格率和重栽率的影响规律,优化了参数组合,结果表明:当导苗管倾斜角度的水平固定为74.32°,机组前进速度为0.95~1.11 km·h-1,定向盘转速为24.32~27.57 r·min-1,此时栽植机构的株距合格率大于90%,重栽率小于5%。为验证优化结果的可靠性,进行了栽植机构台架性能的验证性试验,设置机组前进速度1 km·h-1,定向盘转速25 r·min-1,导苗管倾斜角度为75°,此时株距合格率为90.6%,重栽率为4.2%,试验结果符合国家作业标准,满足三七种苗移栽的农艺要求。

关键词: 导苗管, 三七, 栽植机构, 定向, 响应曲面法

Abstract:

In order to realize the directional transplanting of Panax notoginseng seedlings, a seedling guiding tube transplanting machine of P. notoginseng seedlings was designed. The directional process and the mechanism of the seedling guiding process during the operation of the seedling guiding tube transplanting machine of P. notoginseng seedlings were analyzed, and the main factors affecting the planting of seedlings were determined. The single-factor simulation test of the directional process was carried out by using EDEM software, the directional platform was built according to the simulation test results, the orthogonal test of the directional performance of the directional mechanism was carried out, and the better parameter working combination of the directional mechanism was determined. The operating speed of the unit, the rotation speed of the directional plate and the inclination angle of the seedling guide tube were selected as the experimental factors, the orthogonal rotation combined test with three factors and five level was carried out and a mathematical model of the qualified rate of planting spacing and replanting rate were established, and the influence of the interaction of various experimental factors on the qualified rate of plant spacing and replanting rate was analyzed. The optimal combination of parameters of the transplanting machine obtained by response surface method of central composite. The results showed that when the inclination angle of the seedling guide tube was fixed at 74.32°, the bench forward speed of the unit was 0.95-1.11 km·h-1, the rotation speed of the directional plate was 24.32-27.57 r·min-1, the qualified rate of the plant spacing was more than 90%, and the replanting rate was less than 5%. In order to verify the reliability of the optimization results, the verification test of the performance of the transplanting machine was carried out, the bench forward speed of the unit was 1 km·h-1, the rotation speed of the directional plate was 25 r·min-1, and the inclination angle of the seedling guide tube was 75°. At this time, the qualified rate of plant spacing was 90.6%, the replanting rate was 4.2%. The results were in accordance with the national standard, meeting the agronomic requirements of P. notoginseng seedling transplanting.

Key words: seedling guiding tube, Panax notoginseng, transplanting machine, directional, response surface method

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