Design and testing of a posture-adjusting precision metering device for high-speed maize planting
IntroductionThis study introduces a new technical method that involves adjusting the seed-filling posture and fluidizing the seed group to improve the capacity of mechanical seed-metering devices for high-speed maize planting. The design of a novel posture-adjusting seed-metering device is presented...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2025-01-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1458597/full |
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| author | Jianxin Dong Xiaojun Gao Zhouzhou Zheng Pengfei Zhao Yubin Bi Yuxiang Huang Yuxiang Huang Yuxiang Huang |
| author_facet | Jianxin Dong Xiaojun Gao Zhouzhou Zheng Pengfei Zhao Yubin Bi Yuxiang Huang Yuxiang Huang Yuxiang Huang |
| author_sort | Jianxin Dong |
| collection | DOAJ |
| description | IntroductionThis study introduces a new technical method that involves adjusting the seed-filling posture and fluidizing the seed group to improve the capacity of mechanical seed-metering devices for high-speed maize planting. The design of a novel posture-adjusting seed-metering device is presented and its operating principle is described. In the seed-filling area, the seeds maintain the same postural characteristics and are detached from the seed group. This method creates favorable conditions for mechanical seed-metering devices to achieve effective seed-filling under high-speed planting conditions.MethodsFirstly, the key parameters of the core component were analyzed. Secondly, the influences of the seed posture adjusting efficiency and seed flow distribution characteristics on the seed-filling effect were clarified by the EDEM simulation. Finally, the high-speed metering performance was optimized and validated using bench testing.ResultsThe experiment demonstrated that the type A groove had the highest seed posture adjusting efficiency, a more uniform seed flow distribution, and a superior seed-filling effect as compared to the other groove types. The best metering performance was achieved with an opening angle of 21.6° and an opening width of 8.4 mm; this resulted in pass, repeat, and leak rates of 94.8%, 1.3%, and 3.9%, respectively. Within the speed range of 8–14 km/h, the posture-adjusting seed-metering device demonstrated a pass rate of over 94%, a repeat rate below 2.1%, and a leak rate below 3.9%.DiscussionThe designed device had a better high-speed planting capacity than a seed-metering device without a posture-adjusting mechanism, thus proving the effectiveness of the novel seed-filling method. These findings provide a reference for improving the high-speed planting capacity of mechanical seed-metering devices. |
| format | Article |
| id | doaj-art-ea6b9a5bbca6422c95577f3f91ce753c |
| institution | Kabale University |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj-art-ea6b9a5bbca6422c95577f3f91ce753c2025-01-27T06:40:19ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-01-011610.3389/fpls.2025.14585971458597Design and testing of a posture-adjusting precision metering device for high-speed maize plantingJianxin Dong0Xiaojun Gao1Zhouzhou Zheng2Pengfei Zhao3Yubin Bi4Yuxiang Huang5Yuxiang Huang6Yuxiang Huang7College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaCollege of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, ChinaScientific Research Base for Conservation Tillage Mechanization (Yellow River Basin) of Ministry of Agriculture and Rural Affairs, Northwest A&F University, Xianyang, ChinaShaanxi Engineering Research Center for Agricultural Equipment, Northwest A&F University, Xianyang, ChinaIntroductionThis study introduces a new technical method that involves adjusting the seed-filling posture and fluidizing the seed group to improve the capacity of mechanical seed-metering devices for high-speed maize planting. The design of a novel posture-adjusting seed-metering device is presented and its operating principle is described. In the seed-filling area, the seeds maintain the same postural characteristics and are detached from the seed group. This method creates favorable conditions for mechanical seed-metering devices to achieve effective seed-filling under high-speed planting conditions.MethodsFirstly, the key parameters of the core component were analyzed. Secondly, the influences of the seed posture adjusting efficiency and seed flow distribution characteristics on the seed-filling effect were clarified by the EDEM simulation. Finally, the high-speed metering performance was optimized and validated using bench testing.ResultsThe experiment demonstrated that the type A groove had the highest seed posture adjusting efficiency, a more uniform seed flow distribution, and a superior seed-filling effect as compared to the other groove types. The best metering performance was achieved with an opening angle of 21.6° and an opening width of 8.4 mm; this resulted in pass, repeat, and leak rates of 94.8%, 1.3%, and 3.9%, respectively. Within the speed range of 8–14 km/h, the posture-adjusting seed-metering device demonstrated a pass rate of over 94%, a repeat rate below 2.1%, and a leak rate below 3.9%.DiscussionThe designed device had a better high-speed planting capacity than a seed-metering device without a posture-adjusting mechanism, thus proving the effectiveness of the novel seed-filling method. These findings provide a reference for improving the high-speed planting capacity of mechanical seed-metering devices.https://www.frontiersin.org/articles/10.3389/fpls.2025.1458597/fullmaizeseed-metering deviceposture adjustmentseed flowhigh-speed planting |
| spellingShingle | Jianxin Dong Xiaojun Gao Zhouzhou Zheng Pengfei Zhao Yubin Bi Yuxiang Huang Yuxiang Huang Yuxiang Huang Design and testing of a posture-adjusting precision metering device for high-speed maize planting Frontiers in Plant Science maize seed-metering device posture adjustment seed flow high-speed planting |
| title | Design and testing of a posture-adjusting precision metering device for high-speed maize planting |
| title_full | Design and testing of a posture-adjusting precision metering device for high-speed maize planting |
| title_fullStr | Design and testing of a posture-adjusting precision metering device for high-speed maize planting |
| title_full_unstemmed | Design and testing of a posture-adjusting precision metering device for high-speed maize planting |
| title_short | Design and testing of a posture-adjusting precision metering device for high-speed maize planting |
| title_sort | design and testing of a posture adjusting precision metering device for high speed maize planting |
| topic | maize seed-metering device posture adjustment seed flow high-speed planting |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1458597/full |
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