胡建平,郑赛男,刘文东.磁吸滚筒式精密排种器设计与试[J].农业机械学报,2009,40(3):60-63.
.and Experiment of Precision Magnetic Cylinder-seeder[J].Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):60-63.
摘要点击次数: 3147
全文下载次数: 11
磁吸滚筒式精密排种器设计与试   [下载全文]
and Experiment of Precision Magnetic Cylinder-seeder   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  排种器  磁吸滚筒式  设计  试验
基金项目:
胡建平  郑赛男  刘文东
江苏大学
中文摘要:针对蔬菜、花卉类小颗粒种子精密播种问题,利用磁吸式排种原理,设计了一种磁吸滚筒式精密排种器。通过分析比较单排磁吸头不同极性排列方式下的磁路及磁感应强度,确定了滚筒内磁吸头沿周向4排阵列,各排磁吸头按N、S极间隔排列的设计方案。对研制的排种器,以磁粉包衣油菜籽为试验对象,滚筒转速及磁吸头工作电流为试验因素,进行了正交试验,通过方差分析确定了影响排种性能的主次因素及优化组合。试验结果表明,磁吸头工作电流是影响排种性能的主要因素,在磁吸头工作电流230mA、滚筒转速15r/min条件下,排种器单粒精播指数可达93.6%,重播指数为2.2%,排种速率达3600排/h,能够满足精密播种的精度和效率要求。
Key Words:
Abstract:In order to solve the problem of small seed's precision seeding, such as vegetable and flower seeds, a new type of magnetic cylinder-seeder was developed according to the magnetic seed-metering principle. By analyzing and comparing magnetic field route and intensity of one row suction head in the case of two kinds of polarity arrangements, the designed project was ascertained that four rows of magnetic suction head were assembled in the cylinder inner and its pole was arranged according to gap way. To improve the metering performance of this device, the orthogonal experiment was conducted with test object of rapeseed coated with magnetic powder, test factors of cylinder rotation rate and suction head's electric current. Variance analysis of the experiment results indicates that the suction head's electric current is the main factor and the optimization of two factors are the suction head's electric current of 230mA and the cylinder rotation rate of 15r/min. Under such working conditions, the single seed index is 93.6%, multi-seed index is 2.2%, and the seed-metering efficiency could achieve 3600 rows per hour, so it proves that this machine has higher sowing precision and better adaptability to small seeds.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器