Emulation Analysis And Optimization Design On Continuously Variable Mechanism Of Corn Harvesting Machine

China has three major food crops are wheat, rice, corn, wheat harvest has beenbasically mechanization has also been very high rate of mechanical harvesting ofrice, maize mechanical harvest rate is still at a very low level in recent years,countriesto improve the yield of corn machine as a focus of efforts to increase yearby year subsidies for corn harvesting machinery, which makes the corn harvesterentered a period of rapid development, the models also have a knapsack to theself-propelled development. Corn harvester in the rapid growth in the developmentof the storm drain some of the issues, propelled corn harvester on the market derivedfrom the use of CVT in order to improve the power and use most of use the rubberbelt CVT, which performance and reliability of high demands in order to solve thestorm drain some of the problems in the actual application process, the use ofthree-dimensional mapping software UG and multi-body dynamics analysissoftware ADAMS combination of analysis and optimization of corn machineinfinitely variable system significance.UG as a leader in3D digital software, the function is very powerful, it can beused applied to the whole process of development of the product, UG is theintegration of CAD/CAE/CAM software as one of the three-dimensional digital,it’s a wide range of applications, from general machinery to aviation aerospace canbe seen in its presence.ADAMS mechanical analysis software as a multi-body system is one of thesector on the most widely used system mechanics analysis software, the world’sleading automotive manufacturers and automotive parts suppliers are mostly used.This paper first analyzes the status of the Corn and corn harvesting machineindustry, and described the development trend of China’s machine, corn machine CVT basis of the mountain, on the problem solutions and the need to. Behind thesolution to the problem also describes the characteristics and application steps of theUG3D digital design software, and multi-body dynamics analysis softwareADAMS made a brief introduction to its basic features and algorithms Elaboratingon the basis of multi-body dynamics.This paper outlines the basic structure of the CVT and analyzes the CVT works,understanding of the role of the torque cam mechanism in the process of analyzingthe transmission principle, gives the basic geometric relationships, and thekinematic relations are derived only variable speed round the mathematicalrelationship between the diameter change and belt plate axial displacement. V-beltsslip critical condition behind the ADAMS problem-solving applications in thisarticle also gives the corn machine infinitely variable mechanical equation of thefocus, the main passive variable speed round the axial pressure relationship,Mechanical equation of the torque cam mechanism.This thesis, on the basis of analysis using ADAMS to analyze the dynamiccharacteristics of the corn infinitely variable institutions to simplify theestablishment of the simplified model of corn infinitely variable with UG in thesimplified model of the main passive variable speed wheel has been simplified to bethe same four belt drive, which provides great convenience for UG Modeling andADAMS. UG establish UG exchange interface parasolid completion of the infinitelyvariable speed, three-dimensional images are exported to the*. X_t, and*the.Xmt_txt file, then import the ADAMS/View environment, flexible belt in ADAMS/View environment, impose variable speed wheel drive and force, by the abovework only virtual prototype model of the corn that can be run in ADAMSenvironment infinitely variable institutions. The article also selected CVT pass themaximum torque and transmission ratio is1:1, the maximum transmission ratio(1.64), minimum transmission ratio (0.6) all three cases, motion simulation forvirtual prototyping, and use the STEP function to change, torque the size of the cam angle, torque cam diameter, the torque cam angle, the size of the radius of thetransmission ratio constant and a certain torque transmission and compressionspring and a different amount of compression axial pressure diagram, the simulationresults analysis combined with the practical problems of CVT some parameters toadjust the simulation analysis, and then adjust the parameters of CVT institutions.This article production, learning and research, theory and experience to analyze,research questions, and production practice is linked, you can guide the productionpractice, and provide direction for the solution for the corn harvest rubber bandinfinitely variable system improvements. The rubber belt type continuously variabletransmission analysis model established in this corn machine continuously variabletransmission system design, development, performance evaluation of the reality ofpractical significance, corn machine CVT design, development, performanceproblem solving, production, test and so is more instructive.In this paper the combination of the three-dimensional mapping software UGand multi-body dynamics analysis software ADAMS and first applied to optimizethe design of the corn harvesting machine rubber belt CVT system, this is a boldexploration Cable, the design for the future of corn harvesting machine rubber beltCVT system has opened in one direction...