Claas Selbstfahrende Erntemaschinen Gmbh

Ludger Gausmann

Hubert Buhne

Andreas Arnold

Hubert Uhlending

Martin Dykstra

Uwe Amsbeck

A drum chopper in which cutting blades are locked in a form-fitting relationship to blade receptacles includes a locking structure between the blades and receptacles and a clamping piece. In one embodiment, the locking structure is integrally formed in the bearing surfaces of the receptacle and the mating surfaces blade by a latch projection in the receptacle and a lug in the blade. In another embodiment, the locking structure is formed by matching grooves in the mating surfaces of the receptacle and blade and a key inserted into the matching grooves. The clamping piece is inserted between the blade and a stop in the receptacle to secure the arrangement.

Drum chopper

A conveying device for stem-bearing crops which is provided with two rotatable circular blades and two rotatable housings above for receiving tines, is to be designed in such a way that the tines are fixed to the rotatable housing in such a way that the risk of breaking is substantially reduced, so that the service life of the tines is substantially increased. The tines are permanently inserted in bearing plates. Each bearing plate is mounted freely rotatably on a fixed bearing pin, the longitudinal center axis of the bearing pin being parallel to and spaced apart from the axis of rotation of the cylindrical housing. On the bearing plate on the outside on two bolts are mounted roller bearings which roll over the control face of a control cam which is also mounted on the bearing pin. The control cam is not rotatable relative to the bearing pin, but slidable in the axial direction, and is pressed by a plate spring assembly toward the roller bearings. As soon as an elevated torque acts on a tine, it is rotated in a direction opposite the direction of rotation, the compressive force of the plate spring assembly being increased, as the roller bearings roll over an ascending oblique surface of the control cam. The forage harvester is particularly suitable for harvesting and chopping fast-growing woody plants.

Growing community of inventors

Hagen, Germany

Ludger Gausmann