Development of single row automatic transplanting device for potted vegetable seedlings
Development of single row automatic transplanting device for potted vegetable seedlings
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DOI：
10.25165/ijabe.v11i3.3969
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发表时间：
2018-06
影响因子：
2.4
通讯作者：
Xin Jin;Daoyi Li;Ma Hao;Jiangtao Ji;Zhao Kaixuan;Pang Jing
中科院分区：
文献类型：
--
作者：
Xin Jin;Daoyi Li;Ma Hao;Jiangtao Ji;Zhao Kaixuan;Pang Jing
在中国，自动化程度低严重影响了蔬菜移栽的工作效率和质量。番茄是中国乃至世界上最重要的蔬菜之一，本研究以番茄为研究对象。在对某典型品种番茄幼苗物理力学特性进行统计分析的基础上，设计了一种自动单行移栽装置。该装置以机电一体化技术为基础，集运苗盘、自动拔苗、机械种植等功能于一体。采用运动学正交解与动态序列解相结合的方法对自动播种机构的运动学参数进行了优化分析，得到了“镰刀形”轨迹。根据取落苗的位置和运动要求，采用解析图法对采苗机构的力学状况进行分析，得到了关键执行部件的力学条件和工作参数。移栽试验在室温25℃条件下进行，苗龄40 d，含水率55%。结果表明，当移栽频率为60株/min时，成功率最高为92.59%，渗漏率最低为23.13%。当移栽频率为120株/min时，成功率最低为77.78%，漏出率最高为38.75%。当移栽频率在60-90株/min之间时，可满足盆栽蔬菜苗高速移栽的要求。
In China, low degree of automation seriously affects the working efficiency and quality in vegetable transplanting. As one of the most important vegetables in China even in the world, tomato was taken as the research object in this study. An automatic single-row transplanting device was designed, based on the statistical analysis of the physical and mechanical properties of tomato seedlings of a typical variety. Based on the technology of mechatronics, the device integrated the functions of transporting seedling tray, automatic seedling extraction and mechanical planting. The kinematics orthogonality solution combined with the dynamic sequence solution method was used to optimize and analyze the kinematic parameters of the automatic seeding mechanism, and the “sickle” trajectory was obtained. According to the position and movement requirement for taking and dropping seedling, the mechanical conditions and the working parameters of key execution parts were obtained by using analytic drawing method to analyze the mechanical condition of seedling collecting mechanism. The transplanting experiment was conducted at room temperature of 25°C, and the age and moisture content of the seedlings were 40 d and 55%, respectively. The results showed that the highest success rate was 92.59%, and the lowest rate of leakage was 23.13%, when the transplanting frequency was 60 plants/min. The lowest success rate was 77.78%, and the highest rate of leakage was 38.75%, when transplanting frequency was 120 plants/min. When the transplanting frequency is between 60-90 plants/min, the device can meet the requirement of high speed transplanting for potted vegetable seedling.
Keywords: potted vegetable seedling, seedling mechanism, automatic transplanting, tomato seedling, transplanting experiment
DOI: 10.25165/j.ijabe.20181103.3969
Citation: Jin X, Li D Y, Ma H, Ji J T, Zhao K X, Pang J. Development of single row automatic transplanting device for potted vegetable seedlings. Int J Agric & Biol Eng, 2018; 11(3): 67–75.