您好，欢迎访问江苏省农业科学院 机构知识库！
江苏省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Development of unilateral obstacle-avoiding mower for Y-trellis pear orchard

文献类型： 外文期刊

作者： Lei, Xiaohui 1 ; Qi, Yannan 1 ; Zeng, Jin 1 ; Yuan, Quanchun 1 ; Chang, Youhong 3 ; Lyu, Xiaolan 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Nanjing 210014, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Protected Agr Engn Middle & Lower Reaches, Nanjing 210014, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Pomol, Nanjing 210014, Peoples R China

4.Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Peoples R China

关键词： unilateral obstacle-avoiding mower; Y-trellis pear orchard; movement trajectory; working performance

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING （ 影响因子：1.885； 五年影响因子：2.232 ）

ISSN： 1934-6344

年卷期： 2022 年 15 卷 1 期

页码：

收录情况： SCI

摘要： To solve the problem of weeding under Y-trellis pear orchards, a unilateral obstacle-avoiding mower (UOAM) was developed in this study. The mower is composed of an obstacle-avoiding disc mechanism, a hydraulic profiling mechanism, and a cutting disc mechanism. The diameter of the obstacle-avoiding disc was 0.7 m, which could swing around the trunk or ground pile actuated by the spring mechanism. The piston movement of the hydraulic cylinder controls the working position of the obstacle-avoiding disc. The maximum extension distance of the hydraulic profiling arm was 1 m. Based on the national standards and actual situation of orchards, the optimum parameters were determined with a combination of advancing speed of 0.44 m/s, rotation speed of the cutting disc at 2000 r/min, blade number of 2, and cutting edge length of 0.2 m. Finally, the design parameters were verified by the mathematical model of the blade cutting edge trajectory and multi-body dynamics simulation. Taking stubble cutting stability, leakage rate, working efficiency and costs as the test indexes, field performance comparison tests were carried out on the three operation modes of UOAM mowing, shoulder carrying mower (SCM) mowing and manual weeding. Test results showed that the coefficient variation of stubble cutting height of UOAM was the smallest, showing that the working stability of UOAM was better than the other two treatments. The leakage rate of UOAM was 2.42%, and its coefficient variation was lower than that of SCM. The working efficiency of UOAM was much higher than that of SCM and manual weeding, which was 4.44 times of SCM and 20 times of manual weeding. The profitable area of UOAM was 7.02 hm(2), showing that it was suitable for large-scale mechanized Y-trellis pear orchards.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：江苏省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台