农业工程学报2012，Vol.28Issue(5)：13-18,6.DOI:10.3969/j.issn.10026819.2012.05.003
基于D-H变换矩阵的宽窄行分插机构运动特性分析与设计
Design and kinematics analysis of wide-narrow distance transplanting mechanism based on D-H transformation matrix
摘要
Abstract
According to the need of spatial planting trajectory, a new kind of transplanting mechanism with helical elliptical gear trains was put forward based on the traditional transplanting mechanism with planetary gear trains which was used widely in high-speed transplanter. After analyzing the mechanism structure, the key parameters used to determine the planting trajectory were solved as well as the kinematic model of the mechanism based on D-H transformation matrix. The kinematic characteristics such as the side offsets of trajectory and the velocity of seedling needle were studied by the program developed on the basis of the theoretical model, and a set of optimal parameters was obtained by the method of human-computer conversation. Finally, virtual prototype test was carried out after finishing the structural design, the results of which showed that the new transplanting mechanism met the working requirements of wide-narrow distance rice transplanter.关键词
机构/设计/运动学/宽窄行/交错椭圆齿轮/D-H变换矩阵/水稻插秧机Key words
mechanisms/ design/ kinematics/ wide-narrow distance/ crossed helical elliptical gear/ D-H transformation matrix/ rice transplanter分类
农业科技引用本文复制引用
孙良,赵匀,俞高红,姚佳明..基于D-H变换矩阵的宽窄行分插机构运动特性分析与设计[J].农业工程学报,2012,28(5):13-18,6.基金项目
国家自然科学基金(50875244):浙江省自然科学基金(Y107631) （50875244）
浙江省现代农业装备与实施产业创新团队(2009R5001) （2009R5001）
南方农业机械与装备关键技术重点实验室 （）
