文档详情

基于Adams的甘蔗收割机切割器运动学仿真分析.PDF

发布:2018-11-23约2.09万字共6页下载文档
文本预览下载声明
- 中国农业科技导报ꎬ2016ꎬ18(4):87 92 Journal of Agricultural Science and Technology 基于Adams 的甘蔗收割机切割器运动学仿真分析 谢  峰ꎬ  郭金兵ꎬ  廖  娜ꎬ  刘赟东ꎬ  关成君∗ (中国农业机械化科学研究院ꎬ北京 100083) 摘  要:为探究收割机切割器运动对甘蔗收割质量的影响ꎬ提高切割器的切割质量ꎬ研究了甘蔗收割机双圆 盘切割器的运动学规律ꎬ推算出描述该运动规律的计算公式ꎮ 通过公式计算ꎬ得出最佳参数匹配ꎬ利用pro/ E 建立甘蔗切割器三维实体模型ꎬ在Adams 中进行运动学仿真ꎬ对刀刃上单点运动进行分析ꎬ得出了刀刃单点 的位移、轨迹的运动规律图ꎮ 结果表明ꎬ在不同前进速度、不同刀片数目的情况下ꎬ随着公式系数P 的增加ꎬ 甘蔗被重复切割次数会增加ꎬ通过合理选取系数ꎬ可以算出准确的刀盘转速以达到特定的切割效果ꎮ 当系数 P取 1或2时ꎬ能够控制甘蔗被一刀或两刀切断ꎬ是比较理想的切割效果ꎮ 关键词:甘蔗收割机ꎻ双圆盘切割器ꎻ运动学模型ꎻAdams仿真ꎻ轨迹 doi:10.13304/ j.nykjdb.2015.707 + 中图分类号:S225.5 3      文献标识码:A      文章编号:1008 ̄0864(2016)04 ̄0087 ̄06 Kinematics Simulation Analysis of the Sugarcane Harvester Cutter based on Adams XIE FengꎬGUOJin ̄bingꎬLIAO NaꎬLIU Yun ̄dongꎬGUAN Cheng ̄jun∗ (Chinese Academy of Agricultural Mechanization SciencesꎬBeijing 100083ꎬChina) Abstract:In order toinvestigatetheeffectof cuttermovementonsugarcaneharvestingquality andimprovethecutting qualityꎬthis paper studied the kinematics law of double base cutter in sugarcane harvesterꎬand calculated aformula to describe thekinematicslaw.Thebestmotionparametersꎬforwardvelocityof harvesterꎬspeedof cutterrotationand numbers of blades couldbecalculatedthroughthisformulatocontroltherepeatedcuttingtimes.Toverifythevalidity of theformulaꎬa three ̄dimensional entity model of the sugarcane cutter was built using pro/ E. The motion of the model wassimulatedusingAdamsꎬandthedisplacementcurveandtrackdiagramofthepointsof bladeswasobtained based on the simulation results. The results showed that the repeated cutting frequency of sugarcane would increase with the increase of coefficient P in the formula under the condition of different forward velocity of harvester and
显示全部
相似文档