In order to improve the accuracy of average corn Gleaner device , reduce the leakage rate , spike rate , the bro-ken rate of kernel of unfavorable factors such as corn harvest efficiency , design a high precision of new corn average de-vice .By means of the accurate monitoring of maize corn process average and average angular velocity changes of centroid Gleaner tensile force , when the leakage rate , breaking off spike rate and grain will alarm when broken , and using the theory of computer adaptive network , to adjust the clearance of gleaning and adaptive , improves the Gleaners device aver-age precision .In order to verify the rationality of optimization design of the device , by using the method of simulation ex-periment , theoretical analysis and numerical simulation of the device for picking efficiency argument establishes Gleaners device modeling using ProE software , according to the process of increasing average tensile force changes caused by the centroid of the angular velocity , angular velocity and use ADMAS software to process of maize ear average in the simula-tion, the angular velocity and the experiment is consistent with the value .Finally the adaptive precision maize and com-mon maize ear average device picking device for comparison , high precision of corn ear picking device in reducing the leakage rate and fault rate of picking spike shows excellent performance , greatly improving the corn ear picking efficien-cy,which can improve the technical reference for the design of automatic corn-picking machine .%为了提高玉米拾穗装置拾穗的准确性,减少漏摘率、断穗率、籽粒破碎率等玉米收割效率的不利因素,设计了一种新的高精度玉米拾穗装置. 该装置利用玉米拾穗拉断力的变化对玉米拾穗过程的拾穗辊质心角速度进行准确监测,当产生漏摘率、断穗率、籽粒破碎时会发出警报,并利用计算机自适应网络原理,对拾穗辊的间隙进行自适应调节,提高了拾穗装置的拾穗精度. 为了验证装置优化设计的合理性,采用试验、理论分析和数值仿真模拟的方法对装置的采摘效率进行论证,利用 Pro/E 软件建立了拾穗装置的三维建模,根据拾穗过程拉断力的增大引起的质心角速度变化,使用ADMAS软件对玉米穗拾穗过程的角速度进行了仿真模拟,得到了和试验相吻合的角速度值. 将自适应高精度玉米拾穗装置和普通玉米穗采摘装置进行对比发现:高精度玉米穗采摘装置在降低漏摘率和断穗率方面都表现出了优良的性能,大大提高了玉米穗的采摘效率,为玉米自动化采摘机械的设计了技术参考.
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