Design and Experiment of In-Situ Bionic Harvesting Device for Edible Sunflower

Xuefeng Zhu, Yang Xu, Changjie Han (), Jia You, Xuejun Zhang, Hanping Mao and Xu Ma
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Xuefeng Zhu: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Yang Xu: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Changjie Han: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Jia You: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Xuejun Zhang: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Hanping Mao: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China
Xu Ma: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Urumqi 830052, China

Agriculture, 2024, vol. 14, issue 7, 1-26

Abstract: In view of the low degree of mechanization and poor quality of harvesting of edible sunflower after drying, an in situ bionic harvesting device was designed, which can achieve low-loss harvesting of edible sunflower without removing the edible sunflower disc. According to the physical characteristics of sunflower stalks in the field, influencing factors of in situ low-loss feeding were obtained, and the structural parameters of the in situ feeding mechanism were determined. Based on bionic technology and static analysis, the influencing factors on the performance of the bionic threshing mechanism were obtained. By analyzing the mechanical characteristics of edible sunflower seed, the operation parameters of the seed collection mechanism were determined. Based on the structural analysis results of the harvesting device, a response surface optimization test was carried out. The test results show that when the average rotation speed of the bionic loosening roller was 113.57 rpm, the average rotation speed of the simulated artificial striking roller was 230.80 rpm, the average forward speed of the harvesting device was 0.58 m/s, the working quality of the harvesting device was the best, the seed loss rate was 2.12%, and the edible sunflower disc threshing rate was 98.96%. A field verification test further confirms that under the optimal working parameters, the relative deviation between test indexes and response surface optimization test results was less than 2%. During the operation process, the movement of key components of the harvesting device was coordinated and stable. The research results can provide new ideas for the mechanized harvesting of the edible sunflower disc after drying.

Keywords: harvesting device; in situ threshing; bionic; edible sunflower (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: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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