Input mechanism and fly ash grading device

The utility model discloses an input mechanism, which comprises a driving unit, a driving motor, a belt movably connected with the top of the driving motor, and a driving unit, the rotating unit comprises a rotating assembly and an auxiliary assembly fixedly connected with the rotating assembly; the input unit comprises an input cylinder connected with the auxiliary assembly in a clamped mode and a limiting cylinder connected with the input cylinder in a penetrating mode. The fly ash grading device has the beneficial effects that after input fly ash is scattered through the rotating assembly, the fly ash with light weight is discharged under the assistance of the auxiliary assembly, so that the discharge efficiency is improved, and meanwhile, the fly ash grading efficiency can be improved; through the arrangement of the input unit, air flow in the input bin can be increased, grading of fly ash is facilitated, meanwhile, through the arrangement of the output unit, the fly ash can be prevented from being blocke