Optimum Design Of Folding Rack For Wide No - Tillage Planter

With the development of conservation tillage technology, the application range of no-tillplanter is gradually enlarged, the design and research have become hot area of agriculturalmachinery research. As the main carrier and load-bearing unit, frame’s design process is the mostimportant link to the research and development of the machine. In this paper, using virtualprototype technology to optimize the folding frame of the2BMZ-13suction no-tillage planter, inorder to reduce the folding force and meet the requirements for strength and stiffness.First of all, based on the analysis of research status at home and abroad of the folding frameand virtual prototype technology, put forward the problems existing in the frame and improveddirection. Further, determined the research content, method and technical route, clearedoptimization direction and the design requirements. Then based on the theory of the forceequilibrium condition, the plural vector method is adopted to analyze forced state of the foldingframe, set up the theory mathematical model, indicated the power consumption’s objectivefunction and factors and the optimization mathematical model was set up. Later, set up the3Dmodel of folding frame using3D modeling software Pro/E, set up the virtual prototype usingkinematics analysis software ADAMS and carried out virtual experiments, got the optimalstructure size through analyzing by data analysis and processing software SPSS. Statics analysis,modal analysis and lightweight design of the virtual prototype were carried out in the finiteelement analysis software ANSYS Workbench.Simulation results show that after optimized frame folding-rate is25.8%, required powerconsumption reduced by28.28%, maximum stress reduced by19.5%, biggest shape variablesreduced by45%, overall quality reduced by13.5%. Finally, established scale prototype andsimulation experiment was carried out.Experimental results shows that: the simulation analysisresults and the test results with the same change rule,verify the feasibility of the method,optimization scheme effectively solved the problem of short-power and unsmooth foldingprogress of2BMZ-13gas suction no-till precise seeder.