The present invention relates to a plurality of feeder aids mounted on a feeder drum of a self-propelled combine harvester.
A first feeder drum is disclosed in EP 0 836 800 B1 that is composed of feeder segments mounted on an axle in rows. The feeder segments are essentially square and are mounted on the axle such that they are offset relative to each other and are non-rotatable. A wide threshing cover is located on every corner of the feeder segment for reinforcement.
The disadvantage of this configuration of the feeder drum is its high-cost, laborious production outlay, since every segment must be manufactured individually and mounted on the axle. In addition, the covers, with their wide configuration, have a negative effect on the threshing of the crops, because the wide effective surface area of the covers creates high friction on the crops and, due to this friction, a high portion of damaged grain often results. Finally, when harvesting conditions are unfavorable, the fact that the crops are acted upon by a large surface area sometimes causes an entire ear to be torn off, thereby continually impairing the separation of the grain.