Threshing device of agricultural grain combine harvesting equipment

The invention provides a threshing device of agricultural grain combine harvesting equipment. The threshing device includes a shell, exhaust holes, a movable baffle, a baffle handle, a threshing bin,a threshing plate, a screen A, a trapezoidal groove, a threshing plate handle, a grain outlet, a grain receiving tray, a fan barrel, a movable bolt, a fan rotating shaft and an arc screen mesh, wherein the middle of the top of a drying bin top cover is fixedly provided with a stirring motor through bolts, and a rotating shaft of the stirring motor passes through a through hole at the top of the drying bin top cover and is movably arranged in a drying bin; the inner side of a bearing sleeve is fixedly provided with a bearing B through interference fit, and threshing shafts pass through a bearing A and threshing rollers in turn and are fixed in the bearing B; the outer end of the rotating shaft of the stirring motor is fixedly provided with a motor wheel through key connection, and the outerside of the motor wheel i