Abstract Utilizing a 9-tyne cultivator, soil ploughing for seed bed preparation is conducted in farming. Friction typically occurs in various joints, notably where the tyne attaches to the bed. Previously, a bolt nut (joint 1) was used, causing rotation issues during ploughing. The tyne is attached via welded side plates to the main frame, with springs providing preload on the joint. During forward movement, the tyne applies a draft force through the chisel plough onto the field. Continuous loading may cause slight tyne bending, affecting ploughing efficiency. To address this, an additional plate was welded onto joint 2, resulting in reduced failures. Despite this modification, failures persisted, especially in joint 2, where significant frictional losses occurred. To mitigate this, a bush pin was introduced in joint 3, allowing for rotation within the bush and reducing frictional losses and tyne bending. A comparison of joints 1, 2, and 3 was conducted based on design parameters and tractor draft force (Swaraj 744FE model). Among them, the bush pin joint proved most effective. Further optimization through bush size adjustments yielded promising results. ANSYS models were utilized for stress analysis and design refinement for improved performance.
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