Design and Experimentation of a Self-Propelled Picking Type White Radish Combine Harvester

Xiao Xiao, Fangping Xie, Zhouqiao Zhao, Dawei Liu () and Xiushan Wang
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Xiao Xiao: College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
Fangping Xie: College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
Zhouqiao Zhao: College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
Dawei Liu: College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China
Xiushan Wang: College of Mechanical and Electrical Engineering, Hunan Agriculture University, Changsha 410128, China

Agriculture, 2023, vol. 13, issue 8, 1-18

Abstract: In view of the low level of mechanized harvesting of white radish in China and other developing countries and the current situation of “no machine can be used” due to the expensive imported machines, a self-propelled white radish combine harvester was designed based on the material, growth characteristics, and agronomic pattern of white radish. This combines harvester can realize the functions of white radish tassel gathering, deep soil loosening, clamping and conveying, tassel cutting, and collecting. In this research, the overall design of the harvester is described, and the structural and working parameters and kinematic requirements of the tassel gathering device, clamping and conveying device, tassel cutting device, and vibrating deep loosening device are determined by mechanical and kinematic analysis. Innovatively, a range of values for the tassel gathering speed ratio of 1.7–4.2 is proposed for the operation of the tassel gathering device suitable for white radish harvesting. The prototype was bench tested with the loss rate, damaged rate, and impurity rate as performance evaluation indexes. The results show that under the pitch of 240 mm between the taper angle of the tassel-raising device, a speed of 80 rpm for the tassel gathering device gathering claw belt rotation, a speed of 120 rpm for the clamping and conveying pulley rotation, a vibration frequency of 2 Hz and an amplitude of 15 mm for the vibrating deep loosening device, and a forward speed of 0.5 m/s (tassel gathering speed ratio: 1.7). The loss rate was 2.75%, the damage rate was 4.99%, and the impurity rate was 1.64%. During the operation, the innovatively designed white radish leaf gathering device can better fulfill the function of tassel gathering, and the systems worked well together, meeting the requirements of mechanized combined harvesting of white radish, but the adaptability to complex working conditions in the field needs to be further strengthened. This research can provide a reference for the design and optimization of mechanized white radish harvesting equipment.

Keywords: white radish combine harvester; tassel raising; tassel gathering; clamping and conveying; tassel cutting; deep soil loosening (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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