Authors

Abstract

Deep tillage is capable of penetrating the tough subsoil layers, while vertical rotary tillage improves soil aggregate structure and moisture retention. In this study, an innovative deep vertical rotary tiller was engineered. Utilizing ANSYS Workbench, stress simulation on the blade was conducted. The EDEM software was employed to explore how the machine's forward speed and the blade's rotational speed impact operational quality. Field trials of the developed prototype revealed that the tillage depth, tillage depth stability coefficient, and soil fragmentation rate all complied with the national standard GB/T 5668-2017 for rotary tiller testing. Comparative analysis with the current vertical rotary tiller confirmed that the tiller developed in this study exhibited superior performance, thereby facilitating the adoption and technological evolution of vertical rotary tillers.

Abstract in Chinese

深耕能打破坚硬的犁底层，而垂直旋耕能改善土壤团粒体结构和提高蓄水能力。本研究设计了一种新型深松立式旋耕机。利用ANSYS Workbench对旋耕刀进行了力学仿真。利用EDEM软件探究机具前进速度和旋耕刀转速对耕地质量的影响。所研制样机的田间试验表明：耕深、耕深稳定系数、土壤破碎率均符合旋耕机试验国家标准GB/T 5668-2008。通过与现有立式旋耕机进行对比分析，证实了本研究中立式旋耕机性能的优越性，从而促进了立式旋耕机的技术发展。