多杆式栽植机构参数化设计与仿真分析  

Parametric Design and Simulation Analysis of Multi-linkage Transplanting Mechanism

作　　者：黎宁慧 薛金林[1] 丁兰英[1] 张炜[1] 康敏[1] 

机构地区：[1]南京农业大学工学院,江苏南京210031

出　　处：《山东农业大学学报（自然科学版）》2017年第6期844-848,共5页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：江苏省农机基金项目(gxz14005);江苏省苏北科技发展计划(BN2014024)

摘　　要：针对目前多杆机构设计较为困难的问题,采用参数化方法设计一种旱地移栽机的多杆式平行杆组栽植机构。设计了多杆式平行杆组栽植机构的结构并建立其运动学模型,基于ADAMS软件建立其参数化模型,并开发用于参数化设计的人机交互界面。利用人机交互界面设定栽植机构的结构参数,对栽植机构鸭嘴的静态与动态轨迹进行仿真,同时获得栽植鸭嘴尖端的位移、速度、加速度规律。通过对设定参数的调整与仿真结果的分析,得到一组合适的参数:机架定位角度为42°,L1=120 mm,L2=242 mm,L3=180 mm,L4=300 mm,L5=80 mm,L6=120 mm。通过参数化设计方法,能够方便地得到符合设计目标的多杆式平行杆组栽植机构的结构参数。Aiming at present difficulties in design of multi-linkage mechanism, a multi-linkage parallel bar grouptransplanting mechanism of transplanter used in dry land was designed with parametric design method. A kinematic model oftransplanting mechanism was established according to the structure. Based on ADAMS, a parametric model of thetransplanting mechanism was established and a human machine interface for parametric design was developed. The humanmachine interface was used to set structural parameters for the transplanting mechanism and simulate static and dynamictrajectories of transplanter duckbill, the laws of displacement, velocity and acceleration of the duckbill transplanting tip wereobtained. A set of appropriate parameters was optimized through adjustment of the parameters and analysis of the simulationresults： Orientation Angle=42 °, L1=120 mm, L2=242 mm, L3=180 mm, L4=300 mm, L5=80 mm, L6=120 mm. Appropriatestructural parameters of multi-linkage parallel bar group transplanting mechanism were obtained conveniently with theparametric design method.

关 键 词：ADAMS 平行杆组 栽植机构 参数化 仿真 

分 类 号：S223.2[农业科学—农业机械化工程]