Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device
Wheat sowing has the characteristics of wide and short sowing periods, and there are situations in which the suitable sowing period is missed. In order to meet the needs of high-speed sowing, a centrifugal wheat strip seeding device was designed, the principle of which is that rotating parts were ma...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/10/1883 |
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| author | Xingcheng An Xiupei Cheng Xianliang Wang Yue Han Hui Li Lingyu Liu Minghao Liu Meng Liu Xiangcai Zhang |
| author_facet | Xingcheng An Xiupei Cheng Xianliang Wang Yue Han Hui Li Lingyu Liu Minghao Liu Meng Liu Xiangcai Zhang |
| author_sort | Xingcheng An |
| collection | DOAJ |
| description | Wheat sowing has the characteristics of wide and short sowing periods, and there are situations in which the suitable sowing period is missed. In order to meet the needs of high-speed sowing, a centrifugal wheat strip seeding device was designed, the principle of which is that rotating parts were mainly composed of centrifugal concave plate and guide strip rotating in the shell to provide the mechanical force and drive the airflow and then realize high-speed seeding. The influence of the rotational speed of the seed discharging plate, the seed feed rate, and the dip angle of the guide strip on the distribution of the flow field and trajectory of seeds in the device was analyzed. The aerodynamic characteristics of seeds and the distribution of the gas-phase flow field inside the seed displacer under airflow were analyzed by CFD–DEM coupled simulation. The effects of three operating parameters on the coefficient of variation of sowing uniformity (CVSU) and the row-to-row seeding amount coefficient of variation (RSCV) were clarified, and the simulation results were verified by bench experiments after secondary optimization. When the centrifugal concave plate rotational speed, seed feed rate, and guide strip angle were 408 rpm, 4938 grains/s, and 69°, the results showed that CVSU and RSCV were 1.12% and 2.39%, respectively, which was in line with the standards for grain strip seeders stipulated. The designed seed discharge device can sow 3.4 ha per hour. This study provides a reference for research of centrifugal airflow-assisted high-speed seeding devices for wheat. |
| first_indexed | 2024-03-10T21:31:00Z |
| format | Article |
| id | doaj.art-1beb9dcb0da241c9b66cbda8bf07a271 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-10T21:31:00Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-1beb9dcb0da241c9b66cbda8bf07a2712023-11-19T15:18:08ZengMDPI AGAgriculture2077-04722023-09-011310188310.3390/agriculture13101883Design and Experimental Testing of a Centrifugal Wheat Strip Seeding DeviceXingcheng An0Xiupei Cheng1Xianliang Wang2Yue Han3Hui Li4Lingyu Liu5Minghao Liu6Meng Liu7Xiangcai Zhang8School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaZibo Investment Promotion Development Center, Zibo 255086, ChinaShandong Academy of Agricultural Machinery Sciences, Jinan 250010, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaSchool of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, ChinaWheat sowing has the characteristics of wide and short sowing periods, and there are situations in which the suitable sowing period is missed. In order to meet the needs of high-speed sowing, a centrifugal wheat strip seeding device was designed, the principle of which is that rotating parts were mainly composed of centrifugal concave plate and guide strip rotating in the shell to provide the mechanical force and drive the airflow and then realize high-speed seeding. The influence of the rotational speed of the seed discharging plate, the seed feed rate, and the dip angle of the guide strip on the distribution of the flow field and trajectory of seeds in the device was analyzed. The aerodynamic characteristics of seeds and the distribution of the gas-phase flow field inside the seed displacer under airflow were analyzed by CFD–DEM coupled simulation. The effects of three operating parameters on the coefficient of variation of sowing uniformity (CVSU) and the row-to-row seeding amount coefficient of variation (RSCV) were clarified, and the simulation results were verified by bench experiments after secondary optimization. When the centrifugal concave plate rotational speed, seed feed rate, and guide strip angle were 408 rpm, 4938 grains/s, and 69°, the results showed that CVSU and RSCV were 1.12% and 2.39%, respectively, which was in line with the standards for grain strip seeders stipulated. The designed seed discharge device can sow 3.4 ha per hour. This study provides a reference for research of centrifugal airflow-assisted high-speed seeding devices for wheat.https://www.mdpi.com/2077-0472/13/10/1883wheat seedinghigh-speed seedingcentrifugalCFD–DEM coupling |
| spellingShingle | Xingcheng An Xiupei Cheng Xianliang Wang Yue Han Hui Li Lingyu Liu Minghao Liu Meng Liu Xiangcai Zhang Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device Agriculture wheat seeding high-speed seeding centrifugal CFD–DEM coupling |
| title | Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device |
| title_full | Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device |
| title_fullStr | Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device |
| title_full_unstemmed | Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device |
| title_short | Design and Experimental Testing of a Centrifugal Wheat Strip Seeding Device |
| title_sort | design and experimental testing of a centrifugal wheat strip seeding device |
| topic | wheat seeding high-speed seeding centrifugal CFD–DEM coupling |
| url | https://www.mdpi.com/2077-0472/13/10/1883 |
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