Design and Parameters Optimization of a Provoke-Suction Type Harvester for Ground Jujube Fruit

Gaokun Shi, Jingbin Li, Za Kan, Longpeng Ding, Huizhe Ding, Lun Zhou and Lihong Wang
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Gaokun Shi: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Jingbin Li: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Za Kan: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Longpeng Ding: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Huizhe Ding: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Lun Zhou: College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 832000, China
Lihong Wang: College of Engineering and Technology, Southwest University, Chongqing 400715, China

Agriculture, 2022, vol. 12, issue 3, 1-16

Abstract: Low working efficiency is an important reason for the limited application of the traditional aspirated-air type jujube fruit pickup machine. In this study, a provoke-suction type harvester for ground jujube fruit (PSH) was designed, based on the principle of negative pressure suction after shoveling the jujube fruit mechanically. The main working parameters were analyzed and the structures of the key devices were designed. Then, a three-factor and three-level Box–Behnken method was used to evaluate the performance of the PSH. The results showed that the pickup rate, impurity rate, and working efficiency were 99.36%, 5.63%, and 1672.3 kg∙h −1 , respectively; as the forward speed, provoke teeth buried depth, and airflow velocity were 0.21 kg∙h −1 , 74 mm, and 26.4 kg∙h −1 , respectively. Furthermore, the verification results showed that the pickup rate, impurity rate, and working efficiency were 98.05%, 5.97%, and 1591.2 kg∙h −1 , respectively, moreover, the relative errors were 1.32%, 6.04%, and 4.85%, respectively, indicating that the parameter optimization model can accurately predict the test results. The working efficiency of the PSH was significantly improved compared with the traditional aspirated-air type jujube fruit pickup machine. This research can provide a reference for the development of the jujube fruit pickup machine.

Keywords: agricultural machinery; jujube fruit; pick up; parameters optimization (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 complete reference list from CitEc
Citations: View citations in EconPapers (7)

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