吉林大学学报(工学版) ›› 2020, Vol. 50 ›› Issue (1): 351-360.doi: 10.13229/j.cnki.jdxbgxb20190826
• 农业工程·仿生工程 • 上一篇
程超1,2(),付君1,2(),郝付平3,陈志2,3,周德义2,任露泉1,2
Chao CHENG1,2(),Jun FU1,2(),Fu-ping HAO3,Zhi CHEN2,3,De-yi ZHOU2,Lu-quan REN1,2
摘要:
针对玉米联合收获机清选作业过程中芯轴堵塞清选筛的问题,本文利用自制清选筛堵塞性能试验台研究了振幅、振频和方向角3个关键运动参数对玉米芯轴堵筛规律的影响,并利用改装玉米联合收获机进行验证试验。通过单因素试验揭示了清选筛加速度和芯轴堵塞质量随运动参数增大的变化规律。通过正交试验建立了运动参数对玉米芯轴堵筛影响规律回归模型,得到了清选筛运动参数最优组合:振幅50 mm、振频7 Hz、方向角55°。验证试验表明,清选筛运动参数最优组合具有良好的筛分性能,堵塞玉米芯轴质量为10.39 g,籽粒含杂率为0.9%,清选损失率为1.09%,能够满足玉米联合收获机清选作业的要求。
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