SIMULATION AND TEST OF FILLING PERFORMANCE OF PNEUMATIC PRECISION SEED METERING DEVICE BASED ON EDEM SOFTWARE
文献类型： 外文期刊
作者： Guo, Wenqi;Zhang, Wenyi;Wang, Yunxia;Ding, Youqiang;Qi, Bin
作者机构：
关键词： Precision seed metering device;Pneumatic type;Seed filling performance;EDEM
期刊名称： INMATEH-AGRICULTURAL ENGINEERING
ISSN： 2068-4215
年卷期： 2024 年 72 卷 1 期
页码：
收录情况： EI（2024版）
摘要： In order to study the effect of population disturbance on the filling performance of the seed metering device, this paper uses the pneumatic precision seed metering device as the model, and uses EDEM software to simulate the population movement of three different seed metering devices. The bench test was carried out at different pressures at 12 km/h and at different speeds at 3.5 kPa. The results show that the designed seed disk with grooves has the most intense disturbance and the highest qualified rate. In order to verify the performance of the disk, full factor tests are carried out on the air pressure and speed, The test results show that when the operating speed is 10 similar to 12 km/h and the positive pressure is 3 similar to 3.5 kPa, the leakage rate is no higher than 5.42%, the replay rate is no higher than 0.42%, and the qualified rate is no lower than 94.58%. When the operating speed is 14 similar to 16 km/h and the positive pressure is 3.5 similar to 4 kPa, the leakage rate is not higher than 6.7%, the replay rate is not higher than 1.04%, and the pass rate is not lower than 93.12%. All the indicators are better than the national standard.
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