Abstract
Background:Garlic is one of the main economic crops in China and the planting area is increasing quickly. But the harvest process of the garlic mainly relies on manual digging, resulting in low harvest efficiency and high cost.Objective:In order to improve the efficiency of garlic harvest, and achieve the mechanization of garlic harvest. The study presents a new design of a garlic harvesting machine that can perform automatic processing and deal with the issue of garlic harvesting.Methods:Firstly, the three-dimensional model of the whole machine and the key mechanism is established and the parameters of the system are calculated by theoretical calculation. Then, the simulation be made and the design be optimized. Finally, the design was processed into a product. It employs an isolation mechanism and positioned cutting mechanism to isolate garlic and crop stubbles and keep the length of the remaining garlic straw consistent.Results:The results of field harvest experiments show that the miss digging rate, miss cutting rate and injury rate of the harvester are as low as 1.23%, 3.13% and 0.68% respectively, and the harvest efficiency is 0.06km2/h.Conclusion:The advantages of the harvester such as high harvesting rate, low damage rate, strong adaptability and high versatility, effectively improve the working efficiency, reduce the labor intensity and the harvest cost.
Highlights
Garlic is widely accepted by some population groups for its rich nutrition, special seasoning effects, and health benefits such as anti-cancer effect [1, 2]
Some developed countries and regions have achieved the mechanized harvest of garlic
The garlic harvester excavation device includes the excavation shovel and the isolation tool, in which the upper shovel is in a smooth spiral design, which is beneficial to reduce the resistance in the excavation process, and helps the excavator break the clumps and improve the separation performance between the soil and the excavator
Summary
The three-dimensional model of the whole machine and the key mechanism is established and the parameters of the system are calculated by theoretical calculation. The simulation be made and the design be optimized. The design was processed into a product. It employs an isolation mechanism and positioned cutting mechanism to isolate garlic and crop stubbles and keep the length of the remaining garlic straw consistent
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