Appliance for extracting silage material from flat or mobile silos

摘要

The invention relates to an appliance for extracting silage material from flat or mobile silos, with a rack mountable on a three-point hydraulic agricultural tractor and with a U-shaped supporting frame 1 which can be supported vertically movably on the rack and to the supporting-frame spars 2, 3, 4 of which can be fixed a cutting unit which comprises a cutting tool 10, 11 which is movable in oscillation by drive members, is provided with cutting teeth, extends along the supporting-frame spars 2, 3, 4 and is made flexible in regions. So that, in particular, an appliance with a reduced number of drive elements can be provided, along with an outstanding cutting quality, the cutting unit has two cutting tools 10, 11 which are movable in oscillation oppositely to one another, extend along the supporting-frame spars 2, 3, 4 and are made flexible in regions and on each of the lateral end regions engages pivotably with a respective push or pull rod 13, 14, 15, 16 fixed eccentrically on a common drive shaft 17, the push or pull rods 13, 14 and 15, 16 of the pairs of the two mutually contiguous end regions of the cutting tools 10, 11 being arranged respectively with an eccentricity offset dimension of approximately 180@ on the common drive shaft 17 (Figure 1). <IMAGE>