弹齿滚筒式捡拾器捡拾性能试验

发布时间：2018-02-06 06:35

本文关键词： 弹齿滚筒式捡拾器工作性能影响因素试验　出处：《农业机械学报》2017年03期 　论文类型：期刊论文

【摘要】：在弹齿滚筒式捡拾器试验台上,以紫花苜蓿为捡拾对象,滚筒转速、机器前进速度和牧草含水率为试验因素,功率消耗与捡拾损失率作为性能检测指标,进行了正交试验和弹齿端部加速度试验,旨在探索弹齿滚筒式捡拾器的工作参数、结构参数与牧草收获条件对捡拾性能的影响。试验结果表明:凸轮廓线对捡拾器工作性能有较大影响;滚筒转速和牧草含水率均对捡拾器工作性能影响极显著,机器前进速度对工作性能影响显著;捡拾器工作性能的影响因素主次顺序为滚筒转速、牧草含水率、机器前进速度,最佳性能参数组合为滚筒转速42 r/min、机器前进速度4.0 km/h、牧草含水率15.1%。弹齿端部加速度频谱分析表明:在滚筒转速、机器前进速度保持一定的情况下,随着牧草含水率的增加,弹齿端部加速度呈上升趋势,捡拾器功率消耗增加,捡拾效率下降。
[Abstract]:Using alfalfa as picking object, rotating speed of roller, moving speed of machine and moisture content of forage as experimental factors, power consumption and pick up loss rate were used as performance test indexes on the test bench of the projectile drum picker. The orthogonal test and the acceleration test at the end of the projectile tooth are carried out in order to find out the working parameters of the picker. The effects of structure parameters and forage harvesting conditions on picking performance were studied. The experimental results showed that the cam contour had a great effect on the performance of pickers. The rotary speed of the drum and the moisture content of the forage have a significant effect on the working performance of the picker, and the speed of the advance of the machine has a significant effect on the working performance. The main and secondary factors affecting the performance of the picker are the rotary speed of the drum, the moisture content of the forage, the speed of the machine forward, and the best performance parameter combination of the rotary speed of the drum is 42 rpm. The speed of the machine is 4.0 km / h, and the moisture content of the forage is 15.1.The acceleration spectrum analysis at the end of the elastic tooth shows that the speed of the machine is kept at a certain speed under the rotating speed of the drum. With the increase of the moisture content of forage, the acceleration at the end of the elastic tooth increased, the power consumption of the picker increased, and the picking efficiency decreased.
【作者单位】：内蒙古农业大学机电工程学院;邢台职业技术学院机电工程系;
【基金】：国家自然科学基金项目(51365035) 河北省自然科学基金项目(E2015108021)
【分类号】：S817.11

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