吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 323-331.doi: 10.13229/j.cnki.jdxbgxb201701047

• 论文 • 上一篇    下一篇

大豆播种机双V型筑沟器设计与试验

贾洪雷1, 2, 郑嘉鑫1, 2, 袁洪方1, 2, 郭明卓1, 2, 王文君1, 2, 于路路1   

  1. 1.吉林大学 生物与农业工程学院,长春130022;
    2.吉林大学 工程仿生教育部重点实验室,长春130022
  • 收稿日期:2016-03-17 出版日期:2017-01-20 发布日期:2017-01-20
  • 通讯作者: 袁洪方(1984-),男,在站博士后.研究方向:保护性耕作技术与农业机械优化设计.E-mail:yhf1984828@163.com
  • 作者简介:贾洪雷(1957-),男,教授,博士生导师.研究方向:保护性耕作技术与全程机械化.E-mail:jiahl@vip.163.com
  • 基金资助:
    “十二五”国家科技支撑计划项目(2014BAD06B03); 吉林省科技发展计划项目(20140204050NY,20140441006SC).

Design and experiment of a Double-V-shaped furrow opener of soybean seeder

JIA Hong-lei1, 2, ZHENG Jia-xin1, 2, YUAN Hong-fang1, 2, GUO Ming-zhuo1, 2, WANG Wen-jun1, 2, YU Lu-lu1   

  1. 1.College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China;
    2.Key Laboratory of Bionics Engineering,Ministry of Education,Jilin University,Changchun 130022,China
  • Received:2016-03-17 Online:2017-01-20 Published:2017-01-20

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摘要： 为了提高种沟质量、播种深度一致性,保证大豆垄上双行精密播种作业效果,设计了一种双V型筑沟器,可单独使用进行开沟作业,亦可与圆盘开沟器配合作业。在开沟深度分别为40、50、60 mm,行走速度分别为1.9、2.2、2.5 m/s作业工况下,以播种后的播深变异系数和播种横向变异系数为评价指标,对设计的双V型筑沟器与圆盘开沟器进行大豆田间对比试验。试验结果表明:相对于圆盘开沟器,双V型筑沟器开沟深度均匀,开出种沟较窄,沟形稳定,有利于保证播种深度一致性、种子分布直线性,提高播种质量。单独使用双V型筑沟器,在开沟速度为1.9 m/s、开沟深度为40 mm时,播深变异系数最小(0.086);在开沟速度为1.9 m/s、开沟深度为60 mm时,播种横向变异最小(1.356)。采用Design-Expert软件对试验数据优化分析得到,圆盘开沟器与双V型筑沟器组合作业效果优于单独使用双V型筑沟器,开沟深度57 mm、行走速度1.9 m/s为最优作业工况,此时播深变异系数为0.15,播种横向变异系数为1.25,重复性田间试验证明了模型的最优作业工况。

关键词: 农业工程, 双V型筑沟器, 开沟器, 播深变异系数, 播种横向变异系数

Abstract: A new Double-V-shaped (DVS) furrow opener was designed to further insure the operation of soybean ridge cultivation precision planting, improve the sowing quality and sowing depth uniformity. The opener consists of shovel stand and profiling press mechanism. The performance of this opener was experimentally studied in soybean fields. The opening depths were set to 40 mm, 50 mm and 60 mm respectively, and working speeds were set to 1.9 m/s, 2.2 m/s and 2.5 m/s respectively; the sowing Depth Variation Coefficient (DVC) and sowing Width Variation Coefficient (WVC) were measured as the indexes. Experimental results show that the SVS furrow opener can smooth the furrow cliff, improve the sowing quality and decrease both DVC and WVC. The minimal DVC was 0.086 when the furrow depth was 40 mm and working speed was 1.9 m/s, and the minimal WVC was 1.356 when the furrow depth was 60 mm and the working speed was 1.9 m/s. Optimization analysis of the experimental data using Design-Expert software shows that the working quality of the cooperation of double-disk digger and DVS furrow opener is better than that of the DVS furrow opener. The best operation condition is at 1.9 m/s working speed and 57 mm opening depth, where the DVC is 0.15 and WVC is 1.25.

Key words: agricultural engineering, Double-V-shaped furrow opener, opener, sowing depth variation coefficient, sowing width variation coefficient

中图分类号: 

  • S220.39
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