[1]林益平,米承继*,赵近谊,等. 一种新型油茶果摘果机研制及动态特性试验研究[J].西北林学院学报,2020,35(5):267-272.[doi:10.3969/j.issn.1001-7461.2020.05.41]
　LIN Yi-ping,MI Cheng-ji*,ZHAO Jin-yi,et al. Manufacturing and Dynamic Experimental Research on A Novel Picking Machine of Camellia Fruit[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(5):267-272.[doi:10.3969/j.issn.1001-7461.2020.05.41]
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 一种新型油茶果摘果机研制及动态特性试验研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第5期
页码:
267-272
栏目:
出版日期:
2020-09-30

文章信息/Info

Title:
 Manufacturing and Dynamic Experimental Research on A Novel Picking Machine of Camellia Fruit
文章编号:
1001-7461(2020)05-0267-06
作者:
 林益平1; 米承继1*; 赵近谊1; 汤迎红1; 李明豪1; 康地2; 陈泽君2; 范友华2
 (1.湖南工业大学 机械工程学院，湖南 株洲 412007；2.湖南省林业科学院，湖南 长沙 410004)
Author(s):
 LIN Yi-ping1; MI Cheng-ji1*; ZHAO Jin-yi1; TANG Ying-hong1; LI Ming-hao1; KANG Di2; CHEN Ze-jun2; FAN You-hua2
 (1.Department of Mechanical Engineering,Hunan University of Technology,Zhuzhou 412007,Hunan,China; 2.Hunan Academy of Forestry Sciences,Changsha 410004,Hunan,China)
关键词:
 ; 油茶果采摘; 多连杆机构; 振动; 运动学分析; 动态特性试验
Keywords:
 ; camellia fruit picking;  multi-link;  vibration;  kinematic analysis;  dynamic characteristics testing
分类号:
S776.03
DOI:
10.3969/j.issn.1001-7461.2020.05.41
文献标志码:
A
摘要:
为改善现有油茶果摘果机工作效率低以及需要人工辅助采摘等技术难点，设计了一种基于多连杆机构的油茶果采摘机，通过液压系统驱动执行机构进行往复运动，实现了振动式自动采摘油茶果。本研究首先介绍了基于多连杆机构的油茶果摘果机工作原理，确定了曲柄滑块机构关键部件的结构参数并完成了可调速液压系统设计。然后，开展了油茶果摘果机关键部位加速度和动态应力测试，评估了运动特性及强度指标。结果表明，整机能够正常运转，但是，滑块最大加速度为90 m·s-2，上底盘最大应力为541 MPa，安全系数<1，需要开展优化设计。
Abstract:
 In order to improve the low working efficiency and manual assistant picking of the current picking machine,a multi-link-based picking machine used to collect camellia fruit was proposed,and the hydraulic system was utilized to drive executive body for reciprocating motion,which picked the camellia fruit by vibrating and automatic way.The working principle of this multi-link-based picking machine was analyzed.The structural parameters of pivotal components in crank slider mechanism were determined,and the hydraulic system with adjustable speed was designed as well.Then,the prototype was produced,and the dynamic testing including the acceleration and stress at the important positions was implemented to estimate the kinematic characteristics and strength.The experimental data showed that the machine could normally run,but the maximum acceleration of slide block reached to be 90 m·s-2 and the maximum stress of upper chassis was 541 MPa,which had very low safety coefficient and needed to be optimized.

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备注/Memo

备注/Memo:
 收稿日期：2020-01-11修回日期：2020-06-03
基金项目：中央财政林业科技推广示范项目(XLK201910)；湖南省科技创新计划项目(2018NK1030，2018NK2065)；湖南省教育厅项目(18C0540)。
作者简介：林益平，教授。研究方向：农业机械设计和优化。E-mail：linyiping538178@126.com
*通信作者：米承继，博士（后）。研究方向：结构优化设计和疲劳可靠性。E-mail：michengji_86@126.com
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