| 油菜收获圆盘式切割器的设计与性能试验 |
| |
| 引用本文： | 李仲恺,谢方平,刘科,唐湘,王修善,毛利成.油菜收获圆盘式切割器的设计与性能试验[J].湖南农业大学学报(自然科学版),2014,40(1):83-88. |
| |
| 作者姓名： | 李仲恺 谢方平 刘科 唐湘 王修善 毛利成 |
| |
| 作者单位： | 湖南农业大学工学院,湖南农业大学工学院,湖南农业大学工学院,湖南农业大学工学院,湖南农业大学工学院,湖南农业大学工学院 |
| |
| 基金项目： | 国家十二五科技支撑计划（2011BAD20B083） |
| |
| 摘 要： | 为了寻求减少油菜联合收获机割台损失的途径，设计了一种适应油菜收获的圆盘式切割器。利用摆锤冲击试验机，研究单株油菜的生物物理特性，得出适合油菜切割的高度为200～400 mm。运用自制的自走式切割试验装置，对影响切割功耗和落粒损失的切割速度、切割高度、刀盘倾角等进行了单因素和多因素正交试验。单因素试验结果表明，在切割转速700 r/min，切割高度300 mm，刀盘切割倾角10°时，其切割功耗为30.19 W，落粒损失为1 162粒。正交试验结果表明，切割转速750 r/min，切割高度250 mm，刀盘切割倾角10°，装置前进速度0.4 m/s，刀片6片为最佳参数，与正交5号试验相近，其切割功耗36.39 W，落粒损失895粒。
|
| 关 键 词： | 油菜 圆盘切割器 落粒损失 功耗 |
| 收稿时间： | 2013/11/11 0:00:00 |
| 修稿时间： | 2013/12/17 0:00:00 |
Design and performance evaluation of a disc cutter for rape harvest |
| |
| lizhongkai,xiefangping,and.Design and performance evaluation of a disc cutter for rape harvest[J].Journal of Hunan Agricultural University,2014,40(1):83-88. |
| |
| Authors: | lizhongkai xiefangping and |
| |
| Institution: | College of Engineering,Hunan Agricultural University,College of Engineering, Hunan Agricultural University,,,, |
| |
| Abstract: | To reduce losses through the header on a rape combine harvester, a disc cutter suitable for rape harvest was designed. Biophysical property of single rape was studied using pendulum impact testing machine, the results showed that the suitable height for rape cutting is 200 mm to 400 mm. Based on the self-propelled testing apparatus for rape cutting, the single factor and multi-factor orthogonal experiments were carried out on the factors that influence consuming power and factors influencing seed losses including cutting velocity, cutting height and cutting dip. The results of single factor experiments showed that when the rotating speed was 700 r/min, the cutting height 300 mm and the cutting dip 10°, 30.19 W of power was consumed and a loss of 1 162 rapeseeds was observed. The results of multi- factor orthogonal factor experiments showed that the optimal cutting parameters included rotating speed of 750 r/min, cutting height of 250 mm, cutting dip of 10°, apparatus forward velocity of 0.4 m/s and cutting blades of 6, which were similar to those observed in orthogonal test 5, and 36.39 W of power was consumed with a loss of 895 rapeseeds. |
| |
| Keywords: | rape disc cutter rapeseed loss power consumption |
|
| 点击此处可从《湖南农业大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《湖南农业大学学报(自然科学版)》下载免费的PDF全文 |
|
