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The Stubble breaking device is one of the most important components of the no-tillage planter. It directly influences the stubble breading effect, and even the performance of the complete machine. By the 3D parametric modeling software Pro/Engineer, 3D solid modeling of the stubble breaking device's parts was carried out. And the parts were assembled into the assembly with pro/E. Then finite element analysis of the strain and stress on the key part (the ripple disc sickle) has been carried out. The result expresses that the intensity and stiffness of the ripple disc can satisfy the design specification, which provides a theory basis for the design and optimization of the stubble breaking device.

No-tillage Planter’s Stubble Breaking Device Modeling and Finite Element Analysis of the Disc