| 戴飞,张仕林,赵武云,史瑞杰,田斌,辛尚龙.自走式青稞联合收获打捆一体机参数优化与试验[J].干旱地区农业研究,2021,39(6):248~256 |
| 自走式青稞联合收获打捆一体机参数优化与试验 |
| Parameter optimization and experiment of highland barley combine harvester with baler |
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| DOI：10.7606/j.issn.1000-7601.2021.06.29 |
| 中文关键词: 联合收获打捆一体机 青稞 参数优化 |
| 英文关键词:all\|in\|one machine of combine harvesting and baling highland barley parameters optimization |
| 基金项目:国家重点研发计划课题（2016YFD0701805）；甘肃农业大学伏羲青年英才培养计划项目（Gaufx-03Y01）；财政部和农业农村部：国家现代农业产业技术体系项目（CARS-14-1-28） |
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| 中文摘要: |
| 为进一步研究提升自走式青稞联合收获打捆一体机工作性能，结合课题组前期研究基础与试验结果，以样机前进速度、纹杆-杆齿组合滚筒转速、脱粒间隙和打捆装置主动带轮转速为自变量，籽粒破碎率、碎芒率和成捆率为响应值，依照Box-Behnken试验设计原理，采用四因素三水平响应面分析方法，分别建立了各因素与籽粒破碎率、碎芒率和成捆率之间的数学模型，并对各因素及其交互作用进行分析。结果表明：4个因素对籽粒破碎率影响的主次顺序为纹杆-杆齿组合滚筒转速、脱粒间隙、样机前进速度和打捆装置主动带轮转速；对碎芒率影响的主次顺序为纹杆-杆齿组合滚筒转速、样机前进速度、脱粒间隙和打捆装置主动带轮转速；对成捆率影响的主次顺序为打捆装置主动带轮转速、脱粒间隙、纹杆-杆齿组合滚筒转速和样机前进速度。该一体机最佳工作参数为：样机前进速度为1.95 m·s-1，纹杆-杆齿组合滚筒转速为864 r·min-1，脱粒间隙为13 mm，打捆装置主动带轮转速为600 r·min-1。田间验证试验表明，自走式青稞联合收获打捆一体机作业的籽粒破碎率均值为1.32%、碎芒率均值为97.58%、成捆率为98.36%，表明在优化工作参数条件下一体机能够降低青稞在机械化收获过程中的籽粒破碎，解决了青稞机械化收获中不易碎芒、秸秆回收劳动强度大的难题。 |
| 英文摘要: |
| To enhance the mechanization operating level of highland barley harvester, a baler for combine harvester of highland barley was designed. To further study the baler’s working performance for combine harvester of highland barley, based on the group’s preliminary research and experimental conclusions, the Box\|Behnken experimental design with four factors and three levels was performed. Parameters such as forward speed, rotating speed of roller combination with rasp bar-pole tooth, threshing clearance and driving wheel speed of baling device were selected as independent variables. The mathematical model was established, and then the effects of various parameters and their interactions were analyzed. The filed test results showed that the effect order of four parameters on the grain breakage rate was as follows: rotating speed of roller combination with rasp bar-pole tooth, threshing clearance, forward speed, and driving wheel speed of baling device. The effect order of four parameters on the awn\|breaking rate was as follows: rotating speed of roller combination with rasp bar-pole tooth, forward speed, threshing clearance, and driving wheel speed of baling device. The effect order of four parameters on the baling rate was as follows: driving wheel speed of baling device, threshing clearance, rotating speed of roller combination with rasp bar-pole tooth, and forward speed. The optimal working parameters for forward speed was 1.95 m·s-1, rotating speed of roller combination with rasp bar-pole tooth was 864 r·min-1, threshing clearance was 13 mm, and driving wheel speed of baling device was 600 r·min-1. Field confirmatory tests showed that the average value of grain breakage rate was 1.32%, the awn\|breaking rate was 97.58%, and the baling rate was 98.36%. The resulted indicated that under the condition of optimized working parameters, the all\|in\|one machine alleviated the grain breakage of highland barley in the mechanized harvest process, resolving the problems of low awn\|breaking rate and high labor intensity straw baling with mechanized harvester of highland barley. |
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