Analysis and experiment on working performance of disc coulter for no-tillage seeder

• Published in: Nong ye gong cheng xue bao Vol. 30; no. 15; pp. 1 - 9
• Main Authors: Bai, Xiaohu, Lin, Jing, Lu, Changyi, Hu, Yanqing
• Format: Journal Article
• Language: Chinese
• Published: 01.08.2014
• Subjects: Cutting parameters; Cutting resistance; Cutting speed; Discs; Kinematics; Seeders; Stubble; Tractors
• ISSN: 1002-6819
• DOI: 10.3969/j.issn.1002-6819.2014.15.001

Therefore, this study investigated the cutting velocity under the condition that coulters slides occurred, and working resistance in vertical direction as well as tractive resistance by kinematics and force analysis, the influence of auxiliary weight and unit working speed on stubble-cutting depth of three disc coulters (plain, wavy, and turbo) in single factor field experiments, and the influence of disc coulter type, auxiliary weight and unit working speed on tractor resistance in an orthogonal field experiment of three factors and three levels. The tractor resistance of coulters changed slightly during the process of cutting soil in an increasing and then decreasing trend during the process of stubble cutting. The cutting depth of the three coulters increased with increasing auxiliary weight. To obtain a cutting depth of 80 mm or above, the minimum auxiliary weight of the plain, wavy and turbo disc coulter was required to be 48, 72 and 60 kg respectively.