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Design and Test of Auxiliary Harvesting Device of Apple

Author(s):

Chao Wu, Yang Wang, Qun Sun, Ying Zhao* and Laigang Zhang  

Abstract:


Background: In the production process of apple orchard, the labor that needed by apple harvest accounts about 40% of the whole production process.

Objective: The auxiliary device of apple harvest was designed to improve production efficiency and reduce labor cost.

Methods: This device was composed of four parts: fruit collecting mechanism, horizontal conveying mechanism, vertical conveying mechanism and rotary packing mechanism, which assist farmers in finishing the process from picking to packaging apples. Simulation analysis and fruit damage analysis were carried out by SolidWorks, fruit damage included three types: Single collision, Overlapping collision and Multi-zone collision.

Results: In the experiment, PID algorithm was employed to control device operate accurately. And when the motor speed were 52 r/min, 56 r/min, 60 r/min, the collection efficiency were 4900apples/h, 5300 apples/h, 5700 apples/h and the fruit damage rates were 4%, 5%, 8%.

Conclusion: The experimental results indicated that compared with the manual operation and visual recognition-based picking robots this device’s production efficiency was improving without increasing the fruit damage rate.

Keywords:

Apple Harvest, Transmission Mechanism, Stress Analysis, PID Algorithm, Collision Damage, Damage Analysis

Affiliation:

School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng, School of Mechanical and Automotive Engineering, Liaocheng University, Liaocheng



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