DESIGN AND RESEARCH OF A CUTTING BLADE FOR CORN STALKS BASED ON A BIONIC PRINCIPLE

The ant (Pheidole megacephala, Fabricius) has a unique and hard mandibular structure to cut branches crush food. Inspired by this special geometric of the teeth, stereoscopic microscope was used view image mandible ant. Origin AutoCAD software were obtain outer profile teeth ant's fitted expressed five-order polynomial function. According analysis curve maxillary fourth tooth is most convex sharpest. plays key role in its feeding process, therefore, structural parameters selected as bionic elements for blade design. To compare cutting performance ordinary flat blades, conducted using ANSYS software, force-deformation characteristics tested Rapid TA practical texture analyser. results element simulation showed that mechanical properties better than those blade. experiments indicated under loading speed 5 mm/s, maximum force 137.51 N, which 12.17 % lower average 96.56 11.58 energy consumption 9.68 J, 11.92 Under 10 143.88 10.37 101.03 9.77 10.14 9.95 experimental suggested can effectively reduce consumption; thus, more suitable stalks. These will be helpful development chopping corn stover other processing machinery.