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Article(id=1325193316467344213, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325193166743282319, articleNumber=null, orderNo=null, doi=10.12398/j.issn.2096-7217.2025.04.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743955200000, receivedDateStr=2025-04-07, revisedDate=1756569600000, revisedDateStr=2025-08-31, acceptedDate=null, acceptedDateStr=null, onlineDate=1793880307547, onlineDateStr=2026-11-05, pubDate=1763136000000, pubDateStr=2025-11-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793880307547, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793880307547, creator=13701087609, updateTime=1793880307547, updator=13701087609, issue=Issue{id=1325193166743282319, tenantId=1146029695717560320, journalId=1319690209941618849, year='2025', volume='6', issue='4', pageStart='1', pageEnd='110', issueExtLink='null', onlineDate='null', pubDate='1763136000000', pubDateStr='2025-11-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793880271850, creator='13701087609', updateTime=1793943421371, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1325458035077952468, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325193166743282319, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1325458035077952469, tenantId=1146029695717560320, journalId=1319690209941618849, issueId=1325193166743282319, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=84, endPage=90, ext={EN=ArticleExt(id=1325193316664476502, articleId=1325193316467344213, tenantId=1146029695717560320, journalId=1319690209941618849, language=EN, title=Research on efficient transport for grain particle groups in non-continuous folded edge spiral conveyors based on DEM, columnId=null, journalTitle=Journal of Intelligent Agricultural Mechanization, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The conveying of grains is a critical process in the operation of combine harvesters, and the performance of this conveying system directly affects the overall operational efficiency of the harvester. However, traditional screw conveyors often suffer from low conveying efficiency during grain transport, which has become a bottleneck limiting the improvement of harvester performance. To address this issue, this study focuses on optimizing the structural parameters of key components in screw conveyors with the aim of enhancing their conveying performance. A novel discontinuous folded-edge structure was innovatively proposed. Based on the discrete element method (DEM) and orthogonal experiments design, folded-edge width B, axial folded-edge length Lx, and axial spacing between folded-edges Sx were systematically investigated with mass flow rate q as the performance evaluation indicator. The optimal combination of structural parameters was determined through range analysis. To verify the reliability of this optimization scheme, bench tests and high-speed photography were conducted to compare the conveying efficiency and material motion characteristics between the optimized design and the traditional screw conveyor. The research results indicate that, orthogonal simulation experiments identified the optimal parameter combination for the discontinuous folded-edge structure: B=5 mm, L=20 mm, S=0 mm. Bench tests confirmed the reliability of the optimized structure, demonstrating a 5.41% to 7.47% improvement in conveyance efficiency compared to the prototype. High-speed photography analysis further revealed that the discontinuous folded-edge structure effectively alters the flow state of particles, increasing the ratio of axial velocity to resultant velocity. This results in a higher axial conveying speed, enhances the axial transport of grain particles, and reduces energy loss. This study designed a screw conveyor with a discontinuous folded-edge structure, which improved the conveying performance of grain particles. The findings provide a solid theoretical basis and practical guidance for the structural optimization of screw conveyors.

, authors=Yongle ZHU1, 2, Zheng MA1, 2, Zhonghua LU3, Yaoming LI1, 2, Yufei LI1, 2, authorsList=Yongle ZHU, Zheng MA, Zhonghua LU, Yaoming LI, Yufei LI, authorCompany=null, correspAuthors=Zheng MA, authorNote=

ZHU Yongle, E-mail:

, correspAuthorsNote=
* MA Zheng, E-mail:
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谷物输送作为联合收获机作业中的关键环节，其输运性能的优劣直接关乎整机作业效率的高低。然而，传统螺旋输送机在输送谷物过程中普遍存在效率低下的问题，这已成为制约收获机整体性能提升的瓶颈。为解决这一问题，研究聚焦于改进螺旋输送机的关键部件结构参数，旨在提高其输送性能。创新性地提出非连续型折边结构，同时基于离散元法和正交试验设计，以折边宽度B、折边轴向长度L、折边轴向间距S为试验因素，质量流率q为性能评价指标，通过极差分析确定最优的结构参数组合。为验证该优化方案的可靠性，通过台架试验和高速摄影，对比分析优方案与传统螺旋输送机的输送效率和物料运动状态变化。研究结果表明，在正交仿真试验中，非连续折边结构参数组合优方案为：B=5 mm、L=20 mm、S=0 mm；台架试验结果中，优化后的非连续折边结构螺旋输送机的输送效率相比原型机提高了5.41%~7.47%，高速摄影分析进一步揭示非连续折边结构能够有效改变颗粒的流动状态，增大轴向速度与合速度的比值，从而使轴向输送速度更大，促进谷物颗粒的轴向输送，减少能量损失。研究设计非连续型折边结构的螺旋输送机，提升了谷物颗粒的输送性能，为螺旋输送机的结构优化提供了坚实的理论依据和实践指导。

, authors=朱永乐1, 2, 马征1, 2, *, *, 卢中华3, 李耀明1, 2, 李宇飞1, 2, authorsList=朱永乐, 马征, 卢中华, 李耀明, 李宇飞, authorCompany=null, correspAuthors=马征, authorNote=

朱永乐，男，1996年生，山东临沂人，博士研究生；研究方向为现代农业机械设计及理论。E-mail：

, correspAuthorsNote=
* 马征，男，1984年生，江苏泰兴人，博士，教授，博士生导师；研究方向为现代农业机械设计及理论。E-mail：
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ZHU Yongle, E-mail:

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ZHU Yongle, E-mail:

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朱永乐，男，1996年生，山东临沂人，博士研究生；研究方向为现代农业机械设计及理论。E-mail：

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朱永乐，男，1996年生，山东临沂人，博士研究生；研究方向为现代农业机械设计及理论。E-mail：

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基于DEM的非连续折边螺旋输送机谷物颗粒群高效输运研究
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朱永乐 1, 2 , 马征 1, 2, *, * , 卢中华 3 , 李耀明 1, 2 , 李宇飞 1, 2
智能化农业装备学报（中英文） | 2025,6(4): 84-90
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智能化农业装备学报（中英文） | 2025 , 6 (4) : 84 -90
基于DEM的非连续折边螺旋输送机谷物颗粒群高效输运研究
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朱永乐1, 2 , 马征1, 2, *, * , 卢中华3, 李耀明1, 2, 李宇飞1, 2
作者信息
  • 1.江苏大学农业工程学院，江苏 镇江，212013
  • 2.江苏大学智能农机装备理论与技术重点实验室，江苏 镇江，212013
  • 3.江苏林海动力机械集团有限公司，江苏 泰州，225300
通讯作者:
* 马征，男，1984年生，江苏泰兴人，博士，教授，博士生导师；研究方向为现代农业机械设计及理论。E-mail：
作者简介:

朱永乐，男，1996年生，山东临沂人，博士研究生；研究方向为现代农业机械设计及理论。E-mail：

Research on efficient transport for grain particle groups in non-continuous folded edge spiral conveyors based on DEM
Yongle ZHU1, 2 , Zheng MA1, 2 , Zhonghua LU3, Yaoming LI1, 2, Yufei LI1, 2
Affiliations
  • 1.School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
  • 2.Key Laboratory for Theory and Technology of Intelligent Agricultural Machinery and Equipment, Jiangsu University, Zhenjiang 212013, China
  • 3.Jiangsu Linhai Power Machinery Group Co., Ltd., Taizhou 225300, China
    • Corresponding Author:
    * MA Zheng, E-mail:

    ZHU Yongle, E-mail:

出版时间: 2025-11-15 doi: 10.12398/j.issn.2096-7217.2025.04.008
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谷物输送作为联合收获机作业中的关键环节，其输运性能的优劣直接关乎整机作业效率的高低。然而，传统螺旋输送机在输送谷物过程中普遍存在效率低下的问题，这已成为制约收获机整体性能提升的瓶颈。为解决这一问题，研究聚焦于改进螺旋输送机的关键部件结构参数，旨在提高其输送性能。创新性地提出非连续型折边结构，同时基于离散元法和正交试验设计，以折边宽度B、折边轴向长度L、折边轴向间距S为试验因素，质量流率q为性能评价指标，通过极差分析确定最优的结构参数组合。为验证该优化方案的可靠性，通过台架试验和高速摄影，对比分析优方案与传统螺旋输送机的输送效率和物料运动状态变化。研究结果表明，在正交仿真试验中，非连续折边结构参数组合优方案为：B=5 mm、L=20 mm、S=0 mm；台架试验结果中，优化后的非连续折边结构螺旋输送机的输送效率相比原型机提高了5.41%~7.47%，高速摄影分析进一步揭示非连续折边结构能够有效改变颗粒的流动状态，增大轴向速度与合速度的比值，从而使轴向输送速度更大，促进谷物颗粒的轴向输送，减少能量损失。研究设计非连续型折边结构的螺旋输送机，提升了谷物颗粒的输送性能，为螺旋输送机的结构优化提供了坚实的理论依据和实践指导。

折边导流结构  /  螺旋输送机  /  DEM仿真  /  参数优化  /  谷物输送性能  /  联合收获机

The conveying of grains is a critical process in the operation of combine harvesters, and the performance of this conveying system directly affects the overall operational efficiency of the harvester. However, traditional screw conveyors often suffer from low conveying efficiency during grain transport, which has become a bottleneck limiting the improvement of harvester performance. To address this issue, this study focuses on optimizing the structural parameters of key components in screw conveyors with the aim of enhancing their conveying performance. A novel discontinuous folded-edge structure was innovatively proposed. Based on the discrete element method (DEM) and orthogonal experiments design, folded-edge width B, axial folded-edge length Lx, and axial spacing between folded-edges Sx were systematically investigated with mass flow rate q as the performance evaluation indicator. The optimal combination of structural parameters was determined through range analysis. To verify the reliability of this optimization scheme, bench tests and high-speed photography were conducted to compare the conveying efficiency and material motion characteristics between the optimized design and the traditional screw conveyor. The research results indicate that, orthogonal simulation experiments identified the optimal parameter combination for the discontinuous folded-edge structure: B=5 mm, L=20 mm, S=0 mm. Bench tests confirmed the reliability of the optimized structure, demonstrating a 5.41% to 7.47% improvement in conveyance efficiency compared to the prototype. High-speed photography analysis further revealed that the discontinuous folded-edge structure effectively alters the flow state of particles, increasing the ratio of axial velocity to resultant velocity. This results in a higher axial conveying speed, enhances the axial transport of grain particles, and reduces energy loss. This study designed a screw conveyor with a discontinuous folded-edge structure, which improved the conveying performance of grain particles. The findings provide a solid theoretical basis and practical guidance for the structural optimization of screw conveyors.

folded-edge guide structure  /  spiral conveyor  /  DEM simulation  /  parameter optimization  /  grain transport performance  /  combine harvester
朱永乐, 马征, 卢中华, 李耀明, 李宇飞. 基于DEM的非连续折边螺旋输送机谷物颗粒群高效输运研究. 智能化农业装备学报（中英文）, 2025 , 6 (4) : 84 -90 . DOI: 10.12398/j.issn.2096-7217.2025.04.008
Yongle ZHU, Zheng MA, Zhonghua LU, Yaoming LI, Yufei LI. Research on efficient transport for grain particle groups in non-continuous folded edge spiral conveyors based on DEM[J]. Journal of Intelligent Agricultural Mechanization, 2025 , 6 (4) : 84 -90 . DOI: 10.12398/j.issn.2096-7217.2025.04.008
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  • 国家自然科学基金(52375249)
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2025年第6卷第4期
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doi: 10.12398/j.issn.2096-7217.2025.04.008
  • 接收时间：2025-04-07
  • 首发时间：2026-11-05
  • 出版时间：2025-11-15
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  • 收稿日期：2025-04-07
  • 修回日期：2025-08-31
基金
National Natural Science Foundation of China(52375249)
国家自然科学基金(52375249)
作者信息
    1.江苏大学农业工程学院，江苏 镇江，212013
    2.江苏大学智能农机装备理论与技术重点实验室，江苏 镇江，212013
    3.江苏林海动力机械集团有限公司，江苏 泰州，225300

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* 马征，男，1984年生，江苏泰兴人，博士，教授，博士生导师；研究方向为现代农业机械设计及理论。E-mail：
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2种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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