Optimization Design For Heading Transmission Of Half-fed Combine Harvester

A half-fed combine harvester is a kind of wheat and grain harvest tool, it has compact-Lightweight and strong adaptability characteristics. This harvester is tailored to irregular cropland in southwest hilly of china. The header as core parts of combine harvester, Not onlyaffects the harvest efficiency, but also directly related to the work efficiency of the combineharvester and one of the key points of breakthrough in Precision Agriculture.The transmiss-ion parts of header were optimized designed in this paper, the result offers some basis forstudying and parameters select. Driving mechanism of cutter highly driving performance andminisize as target theoretical and simulations combined in this paper.First, work module and the transmission layout of combine harvester were introduced,according to the operations requires, select the cutter type and motion analysis, planning thetransmission layout of vertical header. Using multi-objective particle swarm optimizationalgorithm to target which highly driving performance and minisize. Entropy method used soas to eliminate operator subjective factors affect the outcome of the design, gives objectivefunction of model in paper. Power distribution of grain pick wheel gearbox was study bysingle-objective optimization with PSO.Secondly, using Visual C++6.0develop user-friendly, strongly interactive mechanismanalysis software．In the case of a known institution，the best linkage transmission angle andthe integrated optimize design Can be achieve by the software directly and accurately, youcan quickly come to value the basic parameters of the various mechanism; ApplicationProgramming Interface,algorithm realize, import objective function as introduced in paper.Finally, in order to verify the feasibility of solving optimization design, relevant agenciesfor modeling and simulation by Pro/E5.0.And the related characteristics were measured after,contrast design requirements that the optimization result is feasible; finally using Pro/E5.0onthe vertical cutting platform for3D modeling and virtual simulation.Optimization results show that the mechanism of minimum transmission Angle increasedby about6.2percentage points, dimensions of mechanism decreased by18.78percentagepoints.The mass of gearbox decreased by25percentage points under common worksituation.