DESIGN AND OPTIMIZATION TEST OF HIGH-SPEED SEED GUIDE DEVICE WITH CONICAL SPIRAL AIRFLOW
| Autor: | Sihao Zhang, Huajiang Zhu, Wenjun Wang, Yulong Chen, Long Zhou, Mingwei Li, Jida Wu |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Engenharia Agrícola, Vol 44 (2024) |
| Druh dokumentu: | article |
| ISSN: | 0100-6916 1809-4430 |
| DOI: | 10.1590/1809-4430-eng.agric.v44e20230131/2024 |
| Popis: | ABSTRACT During high-speed seeding operations, collisions between seeds and seed guide tubes are very significant, resulting in poor seed spacing uniformity. To solve this problem, a high-speed seed guide device with conical spiral airflow was designed, which can use high-speed positive pressure airflow to move seeds smoothly. To improve the uniformity of the airflow field in the device, a single-factor test was carried out to determine the reasonable range of each factor. Then, the four-factor and five-level central composite test was carried out. The four main factors were screw pitch, cone angle, width of gap, and angle of air-tube, and the evaluation index was the mean variance of airflow velocity. The test results showed that the optimal parameters of the high-speed seed guide device with conical spiral airflow were a screw pitch of 24.98 mm, cone angle of 7.47/55, width of gap of 5.31 mm, and angle of air-tube of 25.09º. The verification test showed that the relative error between the verification test value and the predicted value was less than 5%, indicating that the model had high reliability. This research can provide references for the research of high-speed seed guide technology and the innovative design of seed guide devices. |
| Databáze: | Directory of Open Access Journals |
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