DESIGN AND SIMULATION TEST OF DIGGING DEVICE FOR SMALL POTATO HARVESTER

IF 0.8 Q4 AGRICULTURAL ENGINEERING

INMATEH-Agricultural Engineering Pub Date : 2023-04-30 DOI:10.35633/inmateh-69-13

Yuan Fu, Shiyi Ren, Peng Tang, Yuancai Leng, Xiaohu Chen, Xinye Tu, Xiaorong Lv

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引用次数: 2

Abstract

Aiming at the potato cropping pattern in the hilly area of southwest China, a small digging device for potato harvester was designed. First, the overall structure of the harvester was determined according to the soil physical characteristic and cropping pattern of the test site. Then, the digging shovel, the key components of harvester were designed and was analyzed the relationship between the inclination of the digging shovel and the power loss under the conditions of different digging speed, digging depth and soil bulk density by MATLAB software, and the mathematical models were established. Finally, the three-dimensional model of the whole machine was established by SolidWorks, and the simulation experiment was carried out with the model of soil particles, potato particles and potato ridges created by the discrete element (DEM) software. The simulation results show that when the working speed of the harvester is 1 m/s, the digging depth is 170 mm, and the potato expose rate is 87.3%. Under normal working conditions of the digging device, appropriately reducing the digging depth can reduce the resistance and wear of the digging shovels.

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小型马铃薯收获机挖掘装置的设计与仿真试验

针对西南丘陵区马铃薯种植模式，设计了一种小型马铃薯收获机挖掘装置。首先，根据试验场地的土壤物理特性和种植方式，确定了收割机的总体结构。然后，设计了收获机的关键部件挖掘铲，并利用MATLAB软件分析了在不同挖掘速度、挖掘深度和土壤容重条件下挖掘铲倾斜度与功率损失的关系，建立了数学模型。最后，利用SolidWorks建立了整机的三维模型，并利用离散元（DEM）软件建立的土壤颗粒、马铃薯颗粒和马铃薯山脊模型进行了仿真实验。仿真结果表明，当收割机的工作速度为1m/s时，挖掘深度为170mm，土豆露出率为87.3%。在挖掘装置的正常工作条件下，适当减小挖掘深度可以降低挖掘铲的阻力和磨损。

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来源期刊

INMATEH-Agricultural Engineering AGRICULTURAL ENGINEERING-

CiteScore

1.30

自引率

57.10%

发文量