Virtual Design Of Cleaning Plant Of Cole Harvester Based On ADAMS And Test Research

The research and development situation of cole combine harvester at home and abroad were introduced. Configuration parameters and Agricultural characteristics of cole were measured. Physical mechanism and aerodynamic characteristics of cole cron-straw mixture were measured and analysed. These characteristics of cole were compared with those of paddy and wheat . The movement of cole cron-straw mixture in airstream was analysed . The movement differential equations of all elements of cole cron-straw mixture in airstream were established. Airstream parameters that influenced the movement of cole cron-straw mixture were analysed based on ADAMS. Based on the above analysed and according to the difference in aerodynamic characteristics of some elements of cole cron-straw mixture, airstream parameters that was fit for cleaning cole cron-straw mixture were chosen. A virtual design approach to the vibration sieve of cole combine harvester was put forward based on ADAMS. Realization of process of virtual design were detailed. Model of mechanism of sieve was builded and dynamic simulation and analysis were done with ADAMS. The change of acceleration of sieve was analysed. Some parameters that have great influence on the acceleration of vibration sieve were chosen. In the condition of influence of airstream, motion of cole corn-straw mixture on the sieve was analysed and the movement equations were established .The criterion of up-slip,down-slip and tossing of the materials were formulated. Working parameters of sieve mechanism were optimized with the help of ADAMS. In accordance with characteristics of cole cron-straw mixture, structures of sieves and combination ways of sieve were selected, sieve aperture was selected. The above sections was tested on the vibration sieve test-bed that is designed and manufactured by ourselves. The result of tests was satisfactory.Based on the understanding of characteristics of cole and its cron-straw mixture, in the study, the movement of cole cron-straw mixture in cleaning shoe were analysed, dominating working parameters of cleaning plant were chosen. It has instructional significance for development and research of cleaning plant of cole combine harvester.