浙江农业学报 ›› 2019, Vol. 31 ›› Issue (5): 829-836.DOI: 10.3969/j.issn.1004-1524.2019.05.20

• 生物系统工程 • 上一篇    下一篇

底肥定点深施机地轮组件优化

宋朱军1, 吴雪梅1,*, 李国昌1, 王芳1, 刘红芸1, 张富贵1, 张培坤2   

  1. 1.贵州大学 机械工程学院,贵州 贵阳 550025;
    2.福建永顺机械有限公司,福建 南平 353500
  • 收稿日期:2018-12-04 出版日期:2019-05-25 发布日期:2019-05-23
  • 通讯作者: *吴雪梅,E-mail: xm_wu@163.com
  • 作者简介:宋朱军(1992—),男,河北邯郸人,硕士研究生,主要从事机械电子工程方面的研究。E-mail: 815645779@qq.com
  • 基金资助:
    贵州省科技计划(黔科合支撑〔2017〕2595);贵州省农业产业技术体系

Optimization of ground wheel components of base fertilizer fixed-point deep applicator

SONG Zhujun1, WU Xuemei1,*, LI Guochang1, WANG Fang1, LIU Hongyun1, ZHANG Fugui1, ZHANG Peikun2   

  1. 1. College of Mechanical Engineering, Guizhou University, Guiyang 550025, China;
    2. Fujian Yongshun Machinery Co., Ltd., Nanping 353500, China
  • Received:2018-12-04 Online:2019-05-25 Published:2019-05-23

摘要: 针对底肥定点深施肥机地轮组件驱动力不足,造成施肥点与标记点误差较大的问题,采用一次回归正交设计进行参数优化试验。选择影响施肥点与标记点误差的主要因素(机具前进速度、叶片深度、轮毂半径、叶片面积)作为试验因素,以地轮组件所受的驱动力矩为评价指标,进行4因素4水平的正交试验。仿真试验表明,各因素对施肥点与标记点误差的影响从大到小依次为叶片面积>轮毂半径>叶片深度>机具前进速度。在试验范围内,最优参数组合为:机具前进速度2.3 m·s-1,叶片深度8 cm,轮毂半径17.50 cm,叶片面积52 cm2。在此条件下,地轮组件的转动力矩为101.96 N·m,较优化前增大11.76%。田间验证试验表明,优化前后,标记点与施肥点的位置误差由4.23 cm缩小至1.99 cm,实现了施肥点的准确标记功能。研究结果可为底肥定点深施机的结构及作业参数优化提供参考依据。

关键词: 底肥定点深施肥机, 地轮, 优化, 正交试验

Abstract: In order to solve the large deviation of fertilization point and marking point caused by the lack of driving force of the ground wheel assembly of base fertilizer fixed-point deep fertilization machine, an optimal parameter experiment is carried out by using a regression orthogonal design. The main factors affecting the deviation between the fertilization point and the marking point were selected as the advance speed of the apparatus, the blade depth, the hub radius and the blade area. The four-factor four-level orthogonal experiment was carried out with the driving torque of the ground wheel assembly as the evaluation index. Simulation experiments showed that the influence of factors on deviation between the fertilization point and the marking point decreased as the blade area>hub radius>blade depth>advance speed of the apparatus. The optimal combination of parameters were as follows: the advance speed of the apparatus was 2.3 m·s-1, the blade depth was 8 cm, the hub radius was 17.50 cm, and the blade area was 52 cm2. Under this condition, the driving torque provided by the soil for the ground wheel assembly was 101.96 N·m, which was increased by 11.76%. Field experiment results indicated that the position deviation between the marking point and the fertilization point was reduced from 4.23 cm to 1.99 cm after optimization, which realized the accurate marking function. The research could provide reference for the optimization of the structure and operation parameters of the base fertilizer fixed-point deep applicator.

Key words: base fertilizer fixed-point deep applicator, ground wheel, optimization, orthogonal experiment

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