Seed-Filling Characteristics of a Centralized Seed-Metering Device for Rapeseed Caused by Vibration

Wencheng Wu, Cheng Chang, Tao Li, Hongji Hu, Zhonglin Zhou, Wenhao Yang, Jinyue Guo, Peixu Zhu, Ju Li, Jianfeng Hu, Hong Cheng, Youfeng Tao, Wei Zhou, Fei Deng, Yong Chen, Wanjun Ren and Xiaolong Lei
Additional contact information
Wencheng Wu: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Cheng Chang: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Tao Li: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Hongji Hu: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Zhonglin Zhou: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Wenhao Yang: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Jinyue Guo: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Peixu Zhu: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Ju Li: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China
Jianfeng Hu: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Hong Cheng: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Youfeng Tao: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Wei Zhou: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Fei Deng: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Yong Chen: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Wanjun Ren: Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province, Chengdu 611130, China
Xiaolong Lei: College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Ya’an 625014, China

Agriculture, 2022, vol. 12, issue 7, 1-19

Abstract: Sowing quality is directly influenced by the seed-filling characteristics of a centralized seed-metering device, and vigorous seed-motion status deteriorates seeding performance resulting from field surface roughness, seeder vibration, etc. However, the relationship between vibration and seed-filling properties remains unclear. This study measured the vibration characteristics of a seed-metering device, examined unmeasurable seed-motion characteristics based on DEM simulation, and used bench tests to determine the seed-filling characteristics under vibration conditions. The frequency distribution of the rapeseed seeder was 0–180 Hz. The simulation results revealed that the vibration mainly changed the level of seed in the seed-filling area; moreover, it significantly increased the seed-filling angle, ranging from 56.00°–59.00° to 69.78°–91.40°, which affected the seed-filling performance. A vibration frequency of 10–40 Hz resulted in a target seed rate within 88.67–99.44%, but when there is no vibration, the target seed rate reached 100%. The bench test results demonstrated that the seed-filling angle under vibration will increase with an increase in longitudinal distance, and will change between 15.49°–102°. The seed-filling performance affected by longitudinal distance was larger than that affected by lateral distance. By adjusting the longitudinal distance to range from 0–20 mm, the target seed rate could be maintained above 91%. The findings help to improve our knowledge of seed-filling characteristics under vibration conditions, and should be conducive to improving seeding performance by adjusting the seed layer height to reduce the impact of vibration on field operations.

Keywords: rapeseed centralized seed-metering device; vibration; DEM simulation; seeding performance; seed-filling characteristics; seed layer height (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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