沈阳农业大学学报2016，Vol.47Issue(5)：581-588,8.
基于两段收获的螺杆弓齿轴流式花生摘果装置研究
Axial-flowing Peanut Picking Device with Spiral Bow-teethes Based on Two Stage-harvesting
摘要
Abstract
Current peanut picking device has some general problems, such as high picking damage rate, plants twining, blocking and difficulty of straw removal. For solving these problems and for the research of two-stage peanut harvest picking device, two bow tooth screw axial flow peanut picker was designed. There was an angle between the picking cylinder generatrix and the bow tooth welding on the screw. The peanut plant was driven by the axial force to move to the mouth of straw removal in the process of picking. The distance between the bow tooth movement, the gap between bow teeth were designed, and the arrangement of bow tooth was determined. In order to pick up successfully in time, according to the size of peanut, the inertia force was produced by peanut pod rotating with roller, the main power of picking component, the constraining force of concave grid, the size and shape of concave grid were designed by adjusting the length of drum shaft connection rod in the case, making the gap between 20 and 40 mm. In order to test the function and design rationality, peanut Huayu 30 after drying for 3 days was selected as the research object. Orthogonal Test Method was used to test the performance of the picker with the feeding amount, picking gap and cylinder speed as test factors, with peanut picking rate and peanut damage rate of mechanical picking as the test indexes. The results showed when the feed amount was 0.5kg•s-1, picking gap 25 mm, cylinder speed 550 r•min-1, the picking rate was 99.13%, damage rate 1.56%. It conformed to the peanut industry standard (NY/T 993-2006) of Agriculture Ministry, meeting the requirements of production. The results can provide reference for the design and optimization theory of peanut picking machine.关键词
花生/摘果装置/螺杆/弓齿/性能试验Key words
peanut/picking device/screw/bow-tooth/performance test分类
农业科技引用本文复制引用
陈丽娟,陈中玉,高连兴,安家新,宁世祥,吕长义..基于两段收获的螺杆弓齿轴流式花生摘果装置研究[J].沈阳农业大学学报,2016,47(5):581-588,8.基金项目
国家自然科学基金项目(51575367,50775151)；高等学校博士学科点专项科研基金资助项目(20122103110009) （51575367,50775151）
