基于Simulink柠条捡拾器运动学分析及仿真

Kinematics analysis and simulation on caragana korshinskii pickup based on Simulink

对柠条捡拾器弹齿进行运动轨迹分析并得到最佳速比λ=1.6。运用Simulink仿真软件包建立了数学模型,通过其强大的可视化功能,分别得到捡拾器的速度和加速度仿真图。结果表明:当捡拾滚筒以ω1=11.5rad/s匀角速度运动时,捡拾齿顶端的最大角速度为18rad/s,此阶段属于捡拾器空行阶段,有利于提高捡拾器的工作效率;当弹齿捡拾器处于捡拾工作阶段时,角速度为8.5rad/s,有利于柠条的捡拾;捡拾器角加速度刚开始出现波动,随后其值稳定在0,需进一步研究其机理。

The kinematic trajectory of the caragana pickup was analyzed and the optimum ratio was obtained 1.6.The mathematical model was established by simulation software package.Through its powerful visual function,the pickup speed and acceleration simulation diagram was respectived.According to the study,it provided a theoretical basis for the pickup efficiency of the pickup.Results show：when the angular velocity of collecting drum is 11.5 rad/s movement,the maximum angular velocity of the gear end is 18 rad/s,this stage belongs to the pickup empty line stage that to improve the working efficiency of the pickup.When the spring-tooth pickup is in the working stage,the angular velocity is 8.5 rad/s,which is favorable for the pickup of caragana.The acceleration of the pickup angle is just beginning to fluctuate,and then its value is stable at 0,which needs further study on its mechanism.