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Topology Optimization Analysis of Separation Mechanism for the Rice Trans-Planter

机译：水稻移栽机分离机理的拓扑优化分析

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摘要

A mechanical topology regeneration design method based on the basic chain was presented which was reducing invalid topology design workload and improving optimization design efficiency. And it is used for configuration topology research of planetary separation mechanism of rice transplanting machine to verify its feasibility and effectiveness, which mainly consists of crank-rocker-separation mechanism, mechanical frame, planet carrier, total input shaft, and seedlings folder, and moving trajectory equation of seedling folder point A for the crank-rocker-separation mechanism is obtained according to the quadrangle vector closure principle. The topological synthesis diagram for motion chain for the CRSM was analysis by means of generalized treatment method based on theoretical optimization conditions and topological regeneration path design. The 6 kinds of topology diagram satisfying the design task for motion chair with high motion pair were obtained and the implemented mechanism diagram of kinematic chair for separation mechanism was designed based on the basic chain topology design method. The results show that topology design for the CRSM is relatively simplified for basic chain structure. And theoretical analysis of motion trajectory for the CRSM is relatively the same as the experimental results in the curve trend and relative error of angular displacement is reasonable and effective through test-rig comparative analysis with motion trajectory of crank-rocker-separation mechanism.
机译：提出了一种基于基本链的机械拓扑再生设计方法，可以减少无效的拓扑设计工作量，提高优化设计效率。并用于水稻插秧机行星分离机构的配置拓扑研究，以验证其可行性和有效性。它主要由曲柄摇杆分离机构，机械机架，行星架，总输入轴和秧苗夹以及移动装置组成。根据四边形矢量封闭原理，得到了曲柄摇杆分离机构的苗夹点A的轨迹方程。通过基于理论优化条件和拓扑再生路径设计的广义处理方法，分析了CRSM运动链的拓扑综合图。根据基本链拓扑设计方法，获得了满足高运动对设计要求的六种拓扑图，并设计了分离机构运动椅的实现机理图。结果表明，对于基本链结构，CRSM的拓扑设计相对简化。通过对曲柄摇杆分离机构运动轨迹的试验台对比分析，CRSM运动轨迹的理论分析与曲线趋势的实验结果基本相同，并且角位移的相对误差是合理有效的。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第9期|6951647.1-6951647.10|共10页
  • 作者

    Chen Yan-Li; Hu Yi; Li Su-Yun; Shang Tao;

  • 作者单位

    Guizhou Space Appliance CO LTD, Res Ctr, Shanghai 200333, Peoples R China;

    Jiaxing Univ, Coll Mech & Elect Engn, Jiaxing 314001, Peoples R China;

    Jilin Univ, Sch Mech Sci & Engn, Changchun 130025, Jilin, Peoples R China;

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