Authors

Abstract

In order to reduce the high resistance problem during peanut digging shovel operation and improve the soil loosening effect, a bionic peanut digging shovel was designed according to the streamlined profile of the head of the golden cicada, and the range of values of the digging operation parameters was analyzed. A discrete element model was developed to verify that the operational resistance of the bionic excavation shovel is lower than that of the flat shovel. The reliability of the simulation test was confirmed by conducting a resistance test on the excavation shovel through a soil trench test. A three-factor, three-water orthogonal combination test was designed to determine the optimal operating parameters of the excavation shovel: the bevel angle of the shovel blade was 55°, the digging depth was 130 mm, and the width of the shovel face was 309 mm. The paper can provide a reference for designing and optimizing peanut-digging shovels.

Abstract in Chinese

为了减少花生挖掘铲作业时阻力大的问题，提高土壤松动效果。根据金蝉头部的流线型轮廓，设计了一种仿生花生挖掘铲，并分析了挖掘作业参数的取值范围。建立离散元模型，验证仿生挖掘铲的作业阻力低于平面铲。通过土槽试验，对挖掘铲进行阻力测试试验，验证仿真试验的可靠性。设计三因素三水正交组合试验，确定挖掘铲的最佳作业参数：铲刃斜角为55°，挖掘深度为130mm，铲面宽度为309mm。该文可为花生挖掘铲的设计与优化提供参考。