Cleaning plant is an important component of corn combine harvester, the airflow velocity from the exit of fan should keep uniformity for improving grain cleanness and reducing the clear selections loss. The low-blast and medium-speed centrifuge fan, which mostly adopted in the corn combine, has bad homogeneity on the direction of vane width. The results of the test on the combined cleaning fan show that the airflow speed standard deviation is 0.5727 and beta coefficient is 5% and stability beta is 95%, which is lower than centrifuge fan, and stability beta is high. At the same time, the airflo...
