自走式三七收获机设计与试验
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

云南省重点新产品开发项目(2014BC007)


Design and Experiment of Self-propelled Panax notoginseng Harvester
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    针对丘陵山区三七收获时费工费时、无机械化等现状,设计了一种以柴油机为动力的自走式三七收获机。该机主要由挖掘铲、刮土机构、升运器、拍土机构、收集箱等组成,利用解析作图法对挖掘铲进行分析,确定了三七和土壤混合物顺利通过挖掘铲的铲刃夹角为96°;对升运器运动学分析得出升运器的倾角为25°时三七与土混合物的破碎率最高;以升运速度、振动分离筛振动频率、碎土轴的转速为试验因素,以伤根率、收净率为评价指标进行二次旋转正交组合试验。试验结果表明:试验因素对评价指标影响由大到小依次为振动分离筛振动频率、升运速度、碎土轴转速,当升运速度为0.78m/s,振动分离筛振动频率为10Hz,碎土轴转速为2.5r/s时,伤根率、收净率分别为1.6%、96.32%。以影响因素的最优参数组合进行验证:试验得伤根率、收净率分别为1.6%、96.8%,与计算结果一致,且符合农艺要求的收获指标。该研究为产品级的三七药材收获机的设计提供了技术参考。

    Abstract:

    Panax notoginseng harvest is waste of time and labor in hilly areas without mechanization, thus a dieselpowered selfpropelled Panax notoginseng harvester was designed, which consisted of mining shovels, scraping soil part, elevator, compacting soil part, collection boxes and other components. Analytical mapping was used to analyze mining shovels, the angle that Panax notoginseng and soil mixture can successfully pass digging shovel blade was determined as 96°. It was obtained from analysis of elevator kinematics that when elevator was inclined 25°, Panax notoginseng harvester and soil mixture had the highest broken rate. The speed of elevators, vibration frequency of vibrating screen sieve and speed of rototiller were taken as experimental factors, and root damage rate and harvesting net rate were used to conduct second rotary orthogonal combination experiment. The results showed that the experimental factors’ influences on indexes from big to small were frequency vibration of shaker, elevating speed and speed of rototiller. When elevating speed was 0.78m/s, vibration frequency of shaker separator was 10Hz, speed of rototiller was 2.5r/s, the root damage rate and harvesting net rate were 1.6% and 96.32%, respectively. The optimal parameters of influential factors were adopted to verify the results. After the test, root damage rate and harvesting net rate were 1.6% and 96.8%,respectively, which was consistent with calculation results and in line with the harvesting index of agronomic requirements. The study provided a reference technology for development of productlevel Panax notoginseng harvester for medicinal material.

    参考文献
    相似文献
    引证文献
引用本文

张兆国,王法安,张永成,张丹,田蕊.自走式三七收获机设计与试验[J].农业机械学报,2016,47(s1):234-240.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2016-07-20
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2016-10-15
  • 出版日期: 2016-10-15