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甘草倾斜移栽开沟器的设计与试验

王徐建, 宋建农, 刘彩玲, 董向前, 王继承, 张超

王徐建, 宋建农, 刘彩玲, 董向前, 王继承, 张超. 甘草倾斜移栽开沟器的设计与试验[J]. 农业工程学报, 2016, 32(13): 16-23. DOI: 10.11975/j.issn.1002-6819.2016.13.003
引用本文: 王徐建, 宋建农, 刘彩玲, 董向前, 王继承, 张超. 甘草倾斜移栽开沟器的设计与试验[J]. 农业工程学报, 2016, 32(13): 16-23. DOI: 10.11975/j.issn.1002-6819.2016.13.003
shu
Wang Xujian, Song Jiannong, Liu Cailing, Dong Xiangqian, Wang Jicheng, Zhang Chao. Design and experiment on licorice tilt transplanting furrow opener[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2016, 32(13): 16-23. DOI: 10.11975/j.issn.1002-6819.2016.13.003
Citation: Wang Xujian, Song Jiannong, Liu Cailing, Dong Xiangqian, Wang Jicheng, Zhang Chao. Design and experiment on licorice tilt transplanting furrow opener[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2016, 32(13): 16-23. DOI: 10.11975/j.issn.1002-6819.2016.13.003
shu

甘草倾斜移栽开沟器的设计与试验

  • 中国农业大学工学院农业部土壤-机器-植物系统技术重点实验室，北京 100083

基金项目: 中央高校基本科研业务费专项资金资助项目(2015GX003)；教育部创新团队发展计划项目(IRT13039)
详细信息
    通讯作者:

    王徐建, Email: wxj585@163.com

    宋建农, Email: songjn@cau.edu.cn

Design and experiment on licorice tilt transplanting furrow opener

  • Key Laboratory of Soil-Machine-Plant Systematic Technology, Ministry of Agriculture, Colloge of Engineering China Agricultural University, Beijing 100083, China

摘要

    摘要
  • 摘要: 为解决机械化倾斜移栽甘草苗，设计甘草倾斜移栽机，融合甘草移栽的农艺要求，提出一种针对甘草秧苗倾斜移栽开沟器。建立了开沟器结构参数、工作参数与倾斜V型断面沟倾斜角度、沟底长度间的数学模型，通过改变开沟器切角、开沟器翼板间距、土壤休止角、开沟器速度、开沟器作业深度等因素对所设计的开沟器进行多因素正交设计。试验结果表明:所建数学模型可用于实现特定要求的倾斜V型断面沟的开沟器参数设计，理论和试验结果误差小于4%。在倾斜移栽角度30°农艺条件下，当滞后投苗系数小于1时，甘草秧苗的角度随滞后投苗系数的减小而减小，随开沟器速度的增大而减小；当滞后投苗系数大于等于1时，甘草秧苗的倾斜角度在28°～31°之间波动，开沟器具有稳定的工作性能。该研究可为甘草倾斜移栽机的设计提供参考。
    Abstract: Licorice is not only an important Chinese herbal medicine, but also widely used as an additive in food industry. With the increasing demand of licorice, wild licorice resources can not meet the needs of the market. Artificial cultivation of licorice has become an effective way to solve the problem between the supply and demand of licorice resources. Direct seeding method leads to dredge difficult and large labor consumption when harvest because of its low seedling survival rate, large quantity, long growth cycle, and deep roots. Research shows that seedling transplanting can be used for licorice planting. By this way, the licorice roots can grow strongly and healthily with good quality and high yield; and it is also easy for mechanized harvesting. Seedling transplanting is an ideal cultivation model for artificial cultivation of licorice. At present, the cultivation of licorice in China is still in the manual operation stage, from which exist many problems, such as large labor input, high cost, low production efficiency, poor transplanting quality, etc. Due to the impact of the above problems, the scale of the cultivation of artificial transplanting of licorice has been greatly restricted. A lot of relevant research documents show that the development trend of the cultivation of licorice is the mechanization of transplanting. However, the research on the transplanting machine of licorice in China is still in its early stage, and there is no mature and practical application of the licorice root transplanting machine. In this paper a licorice tilt transplanting opener was proposed. The analysis and experiment of the structure and work parameters of the opener were carried out, which provided the research foundation for the design of the licorice transplanting machine. In order to analyze the forming mechanism of the tilt transplanting furrow opener, the soil backflow model and seedling position parameter model were built. Through analyzing results of the mathematical model, a multi-factors orthogonal test for the opener was executed by changing the soil backflow port angle, the space between two wing plates, velocity, the furrower operating depth and the soil repose angle. The opener orthogonal test results showed that main influencing factors of the inclined V type groove tilt angle was the soil backflow port angle. The primary and secondary order of the factors affecting the length of the ditch was: the furrow opener operating depth, the soil backflow port angle, the space between two wing plates, the soil repose angle and the velocity. The results also showed that the formula built by mathematical model could be used for design the opener to make V type inclined groove. Under the agronomic condition of 30° inclined transplanting with 300 mm long licorice roots. When the lag seedling coefficient value less than 1, the licorice angle decreased with the lag seedling coefficient value decreased, and decreased with the increase of the opener velocity. When the lag seedling coefficient value was equal or greater than 1, the licorice angle fluctuated between 28°-31°. The opener had the advantages of stable working performance.
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    • 参考文献(28)
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  • 收稿日期:  2015-09-24
  • 修回日期:  2016-03-27
  • 发布日期:  2016-06-30

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