Abstract: A front attachment for harvesting corn for a self-propelled combine harvester includes a snapping unit for separating the corn cobs from the remaining components of the corn plant. The snapping unit has snapping rollers that rotate in opposite directions. An overload clutch is disposed within a drive train of the snapping unit. A drive system is optimized in that an overload clutch is directly assigned to each of the snapping rollers.

Abstract: A corn picker has at least two feed and snapping units which are driven by a drive shaft at the same operating speed, and each of which is equipped with a snapping gap and an intake conveyor mechanism which draws the plants into the snapping gap which is used to separate crops from the plants, and a chopping device for fragmentizing the stalks of the plants, which is disposed downstream of the particular intake conveyor mechanism, and the chopping unit has a drive which can be used to adapt the drive speed of the chopping unit when the operating speed of the feed and snapping units changes.

Abstract: A corn picker has at least two feed and snapping units which are driven by a drive shaft at the same operating speed, and each of which is equipped with a snapping gap and an intake conveyor mechanism which draws the plants into the snapping gap which is used to separate crops from the plants, and a chopping device for fragmentizing the stalks of the plants, which is disposed downstream of the particular intake conveyor mechanism, and the chopping unit has a drive which can be used to adapt the drive speed of the chopping unit when the operating speed of the feed and snapping units changes.

Abstract: In an engine control system of a self-propelled working machine, a method for operating an engine control system of this type, and a self-propelled working machine equipped with at least one drive engine—the rotational speed of which may be regulated—and working units that are driven in such a manner that their rotational speeds are adjustable, with which the engine speed is regulated as a function of the load on the drive engine(s), and the at least one drive engine is coupled with one or more working units via a drive train, the drive train includes at least one gearbox stage that holds the drive speed of the working unit(s) constant, and the at least one gearbox stage is designed as a mechanical-mechanical power-split transmission. Thereby the drive engine may be operated in a fuel-saving rotational speed range without this affecting the working speeds of the working units.