Smart Agricultural R&D Group, Korea Institute of Industrial Technology (KITECH), Gimje 54325, Korea.
Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Korea.
Sensors (Basel). 2022 Apr 2;22(7):2750. doi: 10.3390/s22072750.
The purpose of this study was to analyze the tillage depth effect on the tractor-moldboard plow systems in various soil environments and tillage depths using a field load measurement system. A field load measurement system can measure the engine load, draft force, travel speed, wheel axle load, and tillage depth in real-time. In addition, measurement tests of soil properties in the soil layer were preceded to analyze the effect of field environments. The presented results show that moldboard plow at the same tillage depth had a wide range of influences on the tractor's working load and performance under various environments. As the draft force due to soil-tool interaction occurred in the range of 5.6-17.7 kN depending on the field environment, the overall mean engine torque and rear axle torque were up to 2.14 times and 1.67 times higher in hard and clayey soil, respectively, than in soft soil environments. In addition, the results showed tractive efficiency of 0.56-0.73 and were analyzed to have a lugging ability of 67.8% with a 44% maximum torque rise. The engine power requirement in hardpan was similar within 3.6-9.6%, but the power demand of the rear axle differed by up to 18.4%.
本研究旨在利用田间负荷测量系统分析不同土壤环境和耕作深度对拖拉机-犁铧耕作系统的耕作深度的影响。田间负荷测量系统可以实时测量发动机负荷、牵引阻力、行驶速度、轮轴负荷和耕作深度。此外，还进行了土壤层土壤特性的测量试验，以分析田间环境的影响。结果表明，在不同环境下，同一耕作深度的犁铧对拖拉机的工作负荷和性能有广泛的影响。由于土壤-机具相互作用产生的牵引阻力在 5.6-17.7 kN 范围内，硬土和粘性土中的总平均发动机扭矩和后桥扭矩分别比软土环境高 2.14 倍和 1.67 倍。此外，牵引效率为 0.56-0.73，并分析表明具有 67.8%的牵引能力，最大扭矩上升 44%。硬底层的发动机功率需求相似，在 3.6-9.6%范围内，但后桥的功率需求相差高达 18.4%。
