ntric shaft sleeve together.The eccentric shaft sleeve is driven by horizontal shaft and fimbriated gear,and the wheel of the conveyor belt is driven by motor through V-belts.The lower part of vertical shaft is installed in the eccentric sleeve.When the eccentric sleeve ratates,there is a conical surface lined out by the shaft.When the moveable cone comes near the fixed cone,rocks are grinded into pieces,when the moveable cone leaves,grinded material is discharged from the discharge hole.The fixed cone can be ascended or descended by adjusting setting to adjust the