Design and Experiment of Row Cleaner with Staggered Disc Teeth for No-Till Planter.

In view of the large amount of wheat straw coverage and the difficulty with the high-speed working process used in traditional rotary tillage row cleaner. A row cleaner with staggered disc teeth for no-till planting was designed. It was determined that installation with a forward inclination α, horizontal declination β, and forward speed v₀ of the machine were the main factors affecting the straw cleaning rate Y₁ and working resistance Y₂, and the range of values for structural parameters and motion parameters of the row cleaner were determined. Taking α, β, and v₀ as the factors and Y₁ and Y₂ as the response indexes, using EDEM 2018 software to simulate the straw cleaning process under different parameters and determine the influence of each parameter on the straw cleaning performance. After performing a soil bin test, the results showed that there was no straw entanglement and blockage, and the passability was better than that of the traditional flat disc separated row cleaner. When α was 70°, β was 30°, v₀ was 8 km/h, and the embedded depth h of the soil (straw) was 55 mm, the average straw cleaning rate was the highest, which was 90.59%. This study provides a new idea for the design of high-speed corn no-till planters in the Huang-Huai-Hai area of China. [ABSTRACT FROM AUTHOR]