Special Focus: Mechanization and Intelligentization in Rice Production

Analysis and Design of Wide and Narrow Row Transplanting Mechanism with Direct Picking and Direct Planting

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  • 1Zhejiang University of Technology, Hangzhou 310018, China
    2Zhejiang Key Laboratory of Agricultural Intelligent Perception and Robotics, Hangzhou 310018, China
    3Key Laboratory of Agricultural Equipment for Southeast Hilly and Mountainous Areas, Ministry of Agriculture and Rural Affairs, Hangzhou 310018, China
    4Zhejiang Boyuan Agricultural Machinery Co., Ltd., Jiaxing 314500, China
    5Starlight Agricultural Machinery Co., Ltd., Huzhou 313000, China

#These authors contributed equally to this paper

*email:liangsun@zstu.edu.cn

Received date: 2025-03-04

  Revised date: 2025-04-09

  Online published: 2025-07-21

Abstract

【Objective】 In order to solve the problem of lateral inclination of seedlings during the seedling pushing and transplanting process by the existing spatial trajectory wide-narrow row transplanting mechanism, this work presents a spatial trajectory transplanting mechanism evolved from a planar trajectory. 【Method】 Firstly, based on the requirements of rice seedling planting, key positions and postures on the trajectory of the planting arm claw tip were determined. A motion parameter solving model for the simplified mechanism of the planetary gear train (planar 2R mechanism) was established. The transmission ratio of the transplanting mechanism's non-circular gear was distributed using the solved whole-cycle angular displacement of the 2R mechanism. Then, a swing-arm type seedling-pushing device was introduced, where a conjugate cam drives the lateral motion of the planting arm and a split fork realizes seedling pushing. The planar angle between the swing shaft of the planting arm and the claw was determined according to the attitude angle of the claw during seedling picking. With the requirements of straight seedling picking in the planar trajectory segment and lateral swing planting for upright seedling establishment, the conjugate cam profile and structural parameters were designed. This achieved zero offset during the seedling picking process of the transplanting mechanism and upright seedlings after pushing for wide-narrow row mechanical transplanting. Finally, a physical prototype test of the transplanting mechanism was conducted. 【Result】 The actual trajectory and posture of the prototype were basically consistent with the theoretical design: seedling picking angle β1=0.75°; seedling pushing angle in the xoy plane β2=55.25°; seedling pushing angle in the yoz plane β3=34.42°; total lateral displacement during pushing ΔS=39.26 mm; trajectory height h1=318.86 mm; loop height h2=179.83 mm; hill-opening width d1=19.97 mm. These meet the agronomic requirements for wide-narrow row planting, verifying the correctness of the design of the straight-picking and straight-planting wide-narrow row transplanting mechanism

Cite this article

ZHOU Bin, HUANG Jiangjun, XUE Xiaodi, GU Wei, FENG Tao, SUN Liang, YU Gaohong . Analysis and Design of Wide and Narrow Row Transplanting Mechanism with Direct Picking and Direct Planting[J]. Chinese Journal OF Rice Science, 2025 , 39(4) : 465 -476 . DOI: 10.16819/j.1001-7216.2025.250303

References

[1] 朱德泉, 储婷婷, 武立权, 张顺, 何海兵. 宽窄行配置对机插中晚稻生长特性及产量的影响[J]. 农业工程学报, 2018, 34(18): 102-112.
  Zhu D Q, Chu T T, Wu L Q, Zhang S, He H B. The effect of wide narrow row configuration on the growth characteristics and yield of machine inserted late rice[J]. Journal of Agricultural Engineering, 2018, 34(18): 102-112. (in Chinese with English abstract)
[2] Chen G, Liu M, Xu Y, Zhao G, Bawa B, Liang L, Feng T, Pu T W, Yong W G, Liu J, Liu J B, Du F, Yang Y S, Wu C Y, Liu X C, Wang W Y. Improved photosynthetic performance under unilateral weak light conditions in a wide-narrow-row intercropping system is associated with altered sugar transport[J]. Journal of Experimental Botany, 2024, 75(1): 258-273.
[3] Hu Q, Jiang W Q, Qiu S, Xing Z P, Hu Y J, Guo B W, Liu G D, Gao H, Zhang H C, Wei H Y. Effect of wide-narrow row arrangement in mechanical pot-seedling transplanting and plant density on yield formation and grain quality of italic japonica/italic rice[J]. Journal of Integrative Agriculture, 2020, 19(5): 1197-1214.
[4] 周巍, 王万洪, 郑普兵, 覃艳丽, 王莹莹. 宽窄行栽培技术在再生稻上的应用研究[J]. 中国稻米, 2019, 25(2): 72-74.
  Zhou W, Wang W H, Zheng P B, Qin Y L, Wang Y Y. Application of wide-narrow row cultivation techniques on ratooning rice[J]. China Rice, 2019, 25(2): 72-74. (in Chinese with English abstract)
[5] 袁盼盼, 李洪文, 蒋贵菊, 何进, 卢彩云. 滴灌区宽窄行玉米免耕播种带秸秆清理装置设计与试验[J]. 农业机械学报, 2021, 52(6): 43-52.
  Yuan P P, Li H W, Jiang G J, He J, Lu C Y. Design and experiment of straw cleaning device for wide narrow row corn no tillage sowing belt in drip irrigation area[J]. Journal of Agricultural Machinery, 2021, 52(6): 43-52. (in Chinese with English abstract)
[6] 赵春江, 马晨, 李瑾, 王小萌. 丘陵山地水稻机械化技术研究现状与展望[J/OL]. 农业工程学报, 2025, 41(1): 1-11.
  Zhao C J, Ma C, Li J, Wang X M. Research status and prospects of mechanization technology for rice in hilly and mountainous areas[J]. Transactions of the Chinese Society of Agricultural Engineering, 2025, 41(1): 1-11. (in Chinese with English abstract)
[7] 卢康, 张国忠, 彭少兵, 雷志强, 付建伟, 查显涛, 周勇. 双割台双滚筒全履带式再生稻收割机的设计与性能试验[J]. 华中农业大学学报, 2017, 36(5): 108-114.
  Lu K, Zhang G Z, Peng S B, Lei Z Q, Fu J W, Zha X T, Zhou Y. Design and performance of tracked harvester for ratoon rice with double-headers and double-threshing cylinders[J]. Journal of Huazhong Agricultural University, 2017, 36(5): 108-114. (in Chinese with English abstract)
[8] 何永强, 周俊, 袁立存, 郑彭元, 梁子安. 基于履带式联合收获机转向特性的局部跟踪路径规划[J]. 农业机械学报, 2022, 53(11): 13-21.
  He Y Q, Zhou J, Yuan L C, Zheng P Y, Liang Z A. Local tracking path planning based on the steering characteristics of tracked combine harvesters[J]. Journal of Agricultural Machinery, 2022, 53(11): 13-21. (in Chinese with English abstract)
[9] Alizadeh M R, Habibi F. A comparative study on the quality of the main and ratoon rice crops[J]. Journal of Food Quality, 2016, 39(6): 669-674.
[10] 吴亦鹏, 杨永涛, 吴昌浩, 贲如城, 张瓷忠, 李革. 一种宽隔板苗箱宽窄行手扶插秧机: ZL201020135597. 9[P]. 2010-03-20.
  Wu Y P, Yang Y T, Wu C H, Ben R C, Zhang C Z, Li G. A wide partition seedling box wide narrow row hand-held rice transplanter: ZL201020135597. 9[P]. 2010-03-20. (in Chinese)
[11] 陈林涛, 马旭, 齐龙, 鹿芳媛, 孙国栋. 水稻秧盘育秧流水线自动叠盘装备现状与展望[J]. 农机化研究, 2017, 39(6): 260-264.
  Chen L T, Ma X, Qi L, Lu F Y, Sun G D. The current situation and prospects of automatic stacking equipment for rice seedling tray production line[J]. Agricultural Mechanization Research, 2017, 39(6): 260-264. (in Chinese with English abstract)
[12] 张允慧, 迟立军, 赵匀, 徐洪广, 朱艺媛. 斜齿外啮倾斜式宽窄行插秧机分插机构的设计[J]. 农业工程学报, 2012, 28(7): 8-13.
  Zhang Y H, Chi L J, Zhao Y, Xu H G, Zhu Y Y. Design of the splitting mechanism of the diagonal tooth external mesh tilted wide narrow row transplanter[J]. Journal of Agricultural Engineering, 2012, 28(7): 8-13. (in Chinese with English abstract)
[13] 王磊, 孙良, 徐亚丹, 俞高红, 张委. 基于空间轨迹的行星轮系移栽机构设计方法研究[J]. 农业机械学报, 2021, 52(7): 51-59.
  Wang L, Sun L, Xu Y D, Yu G H, Zhang W. Research on the design method of planetary wheel system transplanting mechanism based on spatial trajectory[J]. Journal of Agricultural Machinery, 2021, 52(7): 51-59. (in Chinese with English abstract)
[14] 许春林, 单伊尹, 辛亮, 解江涛, 李峥. 探出开孔式高速水稻膜上插秧机分插机构设计与试验[J]. 农业机械学报, 2020, 51(5): 79-87.
  Xu C L, Dan Y Y, Xin L, Jie J T, Li Z. Design and experiment of the splitting mechanism of the high speed rice transplanter with open hole on the film[J]. Journal of Agricultural Machinery, 2020, 51(5): 79-87. (in Chinese with English abstract)
[15] 徐亚丹, 诸杨华, 薛向磊, 王磊, 孙良. 再生稻空间直取大偏移轮系宽窄行分插机构设计与试验[J]. 农业机械学报, 2022, 53(9): 83-90.
  Xu Y D, Zhu Y H, Xue X L, Wang L, Sun L. Optimal design and experiment on gear train wide and narrow row transplanting mechanism of spatial direct extraction and large offset of ratooning rice[J]. Transactions of the Chinese Society for Agricultural Machinery, 2022, 53(9): 83-90. (in Chinese with English abstract)
[16] 孙良, 姜凯雯, 周斌, 俞高红, 崔荣江. 取秧侧向零偏移的空间轨迹再生稻分插机构设计与试验[J]. 农业机械学报, 2024, 55(2): 101-108.
  Sun L, Jiang K W, Zhou B, Yu G H, Cui R J. Design and experiment of regenerated rice on space trajectory transplantation mechanism with zero lateral offset[J]. Transactions of the Chinese Society for Agricultural Machinery, 2024, 55(2): 101-108. (in Chinese with English abstract)
[17] 俞高红, 王系林, 刘建刚, 叶秉良, 李祥. 蔬菜钵苗密植移栽机多行取苗机构设计与试验[J]. 农业机械学报, 2023, 54(1): 94-103.
  Yu G H, Wang X L, Liu J G, Ye B L, Li X. Design and experiment of multi row seedling taking mechanism for dense planting and transplanting of vegetable pot peedlings[J]. Transactions of the Chinese Society for Agricultural Machinery, 2023, 54(1): 94-103. (in Chinese with English abstract)
[18] 王磊, 吴启帅, 俞高红, 鲍李旭, 赵雄. 小株距非圆齿轮行星轮系植苗机构设计与试验[J]. 农业机械学报, 2024, 55(11): 294-305.
  Wang L, Wu Q S, Yu G H, Bao L X, Zhao X. Design and experiment of planting mechanism with small spacing non-circular gear planetary gear system[J]. Journal of Agricultural Machinery, 2024, 55(11): 294-305. (in Chinese with English abstract)
[19] 童俊华, 俞高红, 朱赢鹏, 叶秉良, 郑超. 三臂回转式蔬菜钵苗取苗机构设计与试验[J]. 农业机械学报, 2019, 50(1): 113-121.
  Tong J H, Yu G H, Zhu Y P, Ye B L, Zheng C. Design and Experiment of three arm rotary vegetable bowl seedling picking mechanism[J]. Journal of Agricultural Machinery, 2019, 50(1): 113-121. (in Chinese with English abstract)
[20] 叶秉良, 吴国环, 俞高红, 金学军, 孙良. 非圆齿轮行星轮系水稻钵苗移栽机构优化设计与试验[J]. 农业机械学报, 2016, 47(11): 68-73.
  Ye B L, Wu G H, Yu G H, Jin X J, Sun L. Optimization design and experiment of rice bowl seedling transplanting mechanism with non circular gear planetary wheel system[J]. Journal of Agricultural Machinery, 2016, 47(11): 68-73. (in Chinese with English abstract)
[21] 赵雄, 王川, 杨茂祥, 孙良, 陈建能. 非圆齿轮行星轮系自动取苗机构逆向设计分析[J]. 农业工程学报, 2015, 31(16): 30-36.
  Zhao X, Wang C, Yang M X, Sun L, Chen J N. Reverse design analysis of automatic seedling picking mechanism with non-circular gear planetary gear system[J]. Journal of Agricultural Engineering, 2015, 31(16): 30-36. (in Chinese with English abstract)
[22] Sun L, Zhou Y Z, Huang H M, Wu C Y, Zhang G F. Analysis and design of a spatial planetary noncircular gear train for rice seedling transplanting based on three given positions[J]. Transactions of the ASABE, 2020, 63(1): 165-176.
[23] 孙良, 胡艺翔, 邢子勤, 俞高红, 俞亚新. 基于近似多位姿的轮系式钵苗移栽机构运动综合[J]. 农业机械学报, 2020, 51(12): 103-111.
  Sun L, Hu Y X, Xing Z Q, Yu G H, Yu Y X. Motion synthesis of wheel-train pot seedling transplanting mechanism based on approximate multi-pose[J]. Transactions of the Chinese Society for Agricultural Machinery, 2020, 51(12): 103-111. (in Chinese with English abstract)
[24] Zhou M, Sun L, Du X, Zhao Y, Xin L. Optimal design and experiment of rice pot seedling transplanting mechanism with planetary Bezier gears[J]. Transactions of the ASABE, 2014, 57(6): 1537-1548.
[25] Suh C H. On the duality in the existence of R-R links for three positions[J]. Journal of Engineering for Industry, 1969, 91(1): 129-134.
[26] 王磊, 方子辰, 王振涛, 孙良, 俞高红. 不等速行星轮系机构混合多位姿综合方法及应用[J]. 中国机械工程, 2024, 35(12): 2211-2220.
  Wang L, Fang Z C, Wang Z T, Sun L, Yu G H. Integrated method and application of mixed multi pose for non-uniform planetary gear system mechanism[J]. Chinese Journal of Mechanical Engineering, 2024, 35(12): 2211-2220.
[27] 孙良, 赵匀, 俞高红, 姚佳明. 基于D-H变换矩阵的宽窄行分插机构运动特性分析与设计[J]. 农业工程学报, 2012, 28(5): 13-18.
  Sun L, Zhao Y, Yu G H, Yao J M. Analysis and design of motion characteristics of wide narrow row insertion and insertion mechanism based on D-H transform matrix[J]. Journal of Agricultural Engineering, 2012, 28(5): 13-18. (in Chinese with English abstract)
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