爪式松土机仿真分析与优化设计  

Simulation analysis and optimization design of claw scarifier

作　　者：丛宏斌[1] 李汝莘[1] 俞高红[2] 李明利[1] 杨启勇[1] 薛丽 

机构地区：[1]山东农业大学机械与电子工程学院,泰安271000 [2]浙江理工大学机械与自动控制学院,杭州310018 [3]山东省农业机械科学研究所,济南250100

出　　处：《农业工程学报》2009年第1期81-84,共4页Transactions of the Chinese Society of Agricultural Engineering

摘　　要：针对第一代样机在试验过程中出现的松土爪拱土和整机抖动现象,对松土爪的运动轨迹进行了研究,探明了拱土的原因。依据松土爪运动规律的分析,找出影响其作业性能的关键结构参数,对松土机构进行了改进设计。在ADAMS系统环境下,进行了虚拟建模和运动学仿真试验,优化样机技术参数,完成了第二代样机的试制与试验。试验结果表明,第二代样机不仅有效地克服了因松土爪拱土而引起的整机抖动,且各项作业指标也达到了松土机具的设计要求。Aimed at the phenomena of tillage claw arching soil and the whole machine shaking in the course of experimentation for the first-generation prototype, the moving trajectory of the tillage claws was studied and the causes for the phenomenon of soil being arched were found out. Structure of the claw scarifier was improved, based on discussion on the movement disciplinarian of the tillage claws, the key structural parameters that influenced its performance were found out, and were set as variables. In the environment of ADAMS system, virtual model was built and kinematics simulation experiments were done. Through analysis on the simulation results, technical parameters of the prototype were optimized, and second-generation prototype was made while experiments were done. The results showed that the second-generation prototype overcame effectively the problem of the machine shaking because of claws arching soil, and all other indicators reached the technical requirements of tillage equipment.

关 键 词：仿真 优化 设计 松土机构 

分 类 号：S220.1[农业科学—农业机械化工程] S222.29[农业科学—农业工程]