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许博,廖庆喜,王洋,胡乔磊.油菜纸钵苗移栽机气动插入式取苗过程分析与试验[J].华中农业大学学报,2018,37(06):119-129
油菜纸钵苗移栽机气动插入式取苗过程分析与试验
Analysis and experiment of seedling process for inserting paper rape pot seedling transplanter
投稿时间:2017-12-05  
DOI:
中文关键词:  油菜  移栽机  纸钵苗  取苗装置  气动
英文关键词:rape  transplanter  paper pot seedling  picking-up device  pneumatic
基金项目:国家油菜产业体系专项(CARS-12);农业科研杰出人才及创新团队;湖北省技术创新专项重大项目(2016ABA094)
作者单位E-mail
许博 华中农业大学工学院,武汉430070 1273155687@qq.com 
廖庆喜 华中农业大学工学院,武汉430070 南方粮油作物协同创新中心长沙 410128 liaoqx@mail.hzau.edu.cn 
王洋 华中农业大学工学院,武汉430070  
胡乔磊 华中农业大学工学院,武汉430070  
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中文摘要:
      设计一种油菜纸钵苗移栽机气动插入式取苗装置,构建取苗过程的力学模型,通过取苗各阶段的关键参数优选试验,获得取苗装置最优参数组合。选择倒四棱台形纸钵,并设计一种双针插入式取苗末端执行器,根据取苗针间距要求确定取苗执行气缸型号为MHS4-20D。气动取苗过程分为取苗阶段、送苗阶段和脱苗阶段,各阶段力学分析与参数优选试验表明,取苗针与苗钵基质间摩擦力不小于3.67 N、苗钵脱落高度低于380 mm时取苗装置可有效实施取苗功能。台架试验表明,当取苗针为直径4 mm不锈钢、插入苗钵基质深度20 mm、脱苗高度340 mm时,取苗成功率达92%。田间试验结果表明,气动插入式取苗装置取苗效果满足钵苗移栽机技术要求。
英文摘要:
      A pneumatic insertion picking-up device is developed to solve the problem that the structure and seedling process of mechanical picking-up device for paper seedling transplanter are complicated. The mechanical model of seedling process was constructed. Key parameters of each seedling stage were optimized and the optimal parameter combination of the plant was obtained. The 60 mm×30 mm×60 mm(above length×below length×height) pour four square table shaped paper pot was used as seedling pot. A kind of double needle insertion type terminal actuator was designed. According to the requirement of the spacing of the needles,the model of the actuating cylinder is MHS4-20D. It was confirmed that the pneumatic picking-up process can be divided into stage of seedling,feeding and seedling removing. Results of mechanical analysis and parameter optimization test of each stage showed that when the friction between seedling needles and seedling pot matrix is not less than 3.67 N with dropping height of seedling pot less than 380 mm,the seedling picking-up device can effectively carry out the function of picking. The result of bench test showed that optimal parameters include the seedling needles are made of stainless steel with a diameter of 4 mm,inserting depth of 20 mm and dropping height of 340 mm,the success rate of seedling is 92%.The results of field testing showed that the effect of the pneumatic insertion picking-up device meets the technical requirements of the pot seedling transplanter. It will provide a reference for designing the pneumatic picking-up device and optimizing key parameters of the pot seedling transplanter.
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