农业机械学报2017，Vol.48Issue(10)：40-48,58,10.DOI:10.6041/j.issn.1000-1298.2017.10.005
油菜钵体苗移栽栽植孔成型机设计与试验
Design and Test of Transplanting Hole-forming Machine for Rapeseed Potted Seedlings
摘要
Abstract
In order to design a new rapeseed transplanting machine,a pure rolling-type transplanting hole-forming machine for rapeseed was developed in accordance with agricultural requirements for rapeseed transplanting and the features of transplanting hole formation.The motion mechanism of the pure rolling-type mechanisin was analyzed to derive motion parametric equations for the hole-forming mechanism.Matlab was used to generate theoretical contour lines and outline drawings of the transplanting hole.CATIA was then used for simulation analysis to obtain the contour curve of the transplanting hole,and fitting as well as simulation were carried out to verify its structure and motion parameters.Based on different slip rates,Matlab was used to solve formed planting hole physical parameters,such as the longitudinally opening length,longitudinal length of planting hole at the depth of H and the upper lateral width.Subsequently,prototype trial-production was carried out,followed by field testing.The experimental results obtained indicated that when the machine was in low gear,its forward speed was in the range of 1.80 ～ 1.96 km/h and field operation efficiency was in the range of 0.306 ～ 0.333 hm2/h.When tested in three types of soil,i.e.,clay,loamy and sandy soil,the average qualification rate of hole formation reached 94.4％,93.3％ and 90.4％,respectively.These results confirmed that the developed transplanting hole-forming machine satisfied design requirements,which was significant for the provision of technical support for the design of new transplanters.关键词
油菜/移栽/栽植孔/成孔机构Key words
rape/transplanting/planting hole/hole forming mechanism分类
农业科技引用本文复制引用
向伟,吴明亮,官春云,贺一鸣,罗海峰,颜波..油菜钵体苗移栽栽植孔成型机设计与试验[J].农业机械学报,2017,48(10):40-48,58,10.基金项目
湖南省政府重大专项(湘府阅[2014]35号)、湖南省科技厅重点项目(2016NK2105)、湖南省科技厅平台建设项目(湘财教指[2014]10号)和湖南省研究生科研创新项目(CX2016B286) （湘府阅[2014]35号）
