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马磊,廖庆喜,魏国粱,刘晓鹏,张青松,刘立超.油菜联合直播机种床松旋装置设计与试验[J].华中农业大学学报,2019,38(6):-138
油菜联合直播机种床松旋装置设计与试验
Design and test of seedbed subsoiling and rotating device for rapeseed combined planter
投稿时间:2019-03-11  
DOI:
中文关键词:  种床松旋装置  种床带  类深松  旋耕  油菜  联合直播机
英文关键词:seedbed subsoiling and rotating device  seedbed strip  subsoiling  rotary tillage  rapeseed  rapeseed combined planter
基金项目:公益性行业(农业)科研专项(201503118 06);国家油菜产业体系专项(CARS 12)
作者单位E-mail
马磊 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070 15623503963@163.com 
廖庆喜 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070 liaoqx@mail.hzau.edu.cn 
魏国粱 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
刘晓鹏 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
张青松 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
刘立超 华中农业大学工学院/农业农村部长江中下游农业装备重点实验室武汉 430070  
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中文摘要:
      针对冬油菜机械化播种时种床带土壤板结严重导致油菜产量下降的问题,开展油菜联合直播机种床松旋装置的设计与试验。研制一种实现种床带浅松作业的类深松铲,通过分析类深松铲触土刃口力学特性,确定其主要结构参数。基于提高种床带作业质量目的,以工作幅宽为2 000 mm的2BYM 6/8型油麦兼用精量联合直播机为试验平台,确定种床带为IT245旋耕刀片、非种床带为IT225旋耕刀片,以类深松铲为主要工作部件,类深松铲的布局以“前四后二”的排布方式开展田间试验。田间试验结果显示:浅松旋耕联合作业后,种床带浅松深度为229.4~239.4 mm,旋耕深度为124.8~139.2 mm,耕深稳定性达90%以上,厢面平整度为25.71~27.14 mm。田间试验作业效果达到设计要求,满足油菜播种农艺要求。
英文摘要:
      In response to the mechanized sowing of winter rapeseed,the seedbed was soiled with soil,and the design and test of seedbed subsoiling and rotating device for rapeseed combined planter was carried out.The technical scheme of combined seedbed with shallow pine and rotary tillage was put forward.In order to solve problems mentioned above,the rational cultivation of the seedbed based on vertical tillage was explored.A seed spinning device for rapeseed was designed with subsoiling rotating tillage combined operation technology and used in the combination with direct seeding machine.A subsoiling shovel for deepening the seedbed strip with deep loosening was developed according to the principle of soil sliding and seed spinning device for rapeseed.The main structural and technical parameters of the device were analyzed and determined.2BYM 6/8 direct rapeseed seeder with a working width of 2 000 mm and the subsoiling shovel was used as the main working part.To improve the quality of the seedbed strip,IT245 rotary blade was used for cutting the area of seedbed strip or the area used to grow the crop while IT225 for cutting the area of non seedbed strip.The layout of the subsoiling shovel arranged in the form of “Four in the front and two in the back”.The performance of seedbed strip was tested in the field.The results showed that the depth of the seedbed strip ranged from 229.4 mm to 239.4 mm,while the depth of the seedbed ranged from 124.8 mm to 139.2 mm.Its depth stability coefficient was more than 90%,with seedbed roughness ranging from 25.71 mm to 27.14 mm.The working effect meets the requirements of design and the sowing agronomy of rapeseed.
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