FACTOR ANALYSIS OF PERFORMANCE OF PRECISION SEED-METERING DEVICE BASED ON ADAMS

The performance of cotton precision seed-metering device is influenced by structural and working parameters awfully.In order to find out the relation between different parameters and performance of cotton precision seed-metering device,seed-metering course of profiled device has been researched with virtual method. Some seed-metering courses in different shape of holes and speed ratios have been simulated.The results shows that the performance of cotton precision seed-metering device has much to do with hole's shape and dimension. It is easy to full seeds in bell-mouthed hole,and it is easier to enter for seed into the circular hole than quadrate hole;the performance of cotton precision seed-metering device has relation greatly toωof dibbler,the criticalωis 975 degrees/s while the device is in better status by simulation.Zero speed seed-metering has relation to dibbler's speed and forward speed,the zero speed has been obtained basically if the speed ratio is appropriate, it is 42 that simulation obtains.