Studies On The Movement And Dynamic Characteristic Of Cereal Cleaning Windmill And Optimized Parameters

The research and development situation of cereal cleaning mechanism at home and abroad were introduced in this thesis. Determined design project of cereal cleaning windmill.Through great experimental research configuration parameters, physical mechanism and aerodynamic characteristics of cereal were measured. On these basic the movement of vibration sieve were analyzed,The movement and the force of cereal on sieve were analyzed. Working parameters of sieve mechanism were optimized with the help of Visual Basic 6.0, the theoretic analysis was reasonable. In accordance with characteristics of cereal, crutches of sieves and combination wags of sieve were selected. Sieve aperture and construction parameters else were selected and determined, after the cereal entered the air stream through vibration sieve, Studied the dynamic characteristic and movement characteristic of cereal in the air stream. The movement equations were established; working parameters of sieve mechanism were done with VB. According to results of VB-programs, analyzed the effects of single factor to cereal's movement orbit and separation, obtained the main and minor factors of cleaning effete, And working parameters and size parameters that were fit for air stream cleaning mechanism were chosen.