Forage harvester adjustment apparatus
AssigneeAGCO International GmbH
InventorsWilhelm Tschirdewahn, Markus Uhl, Burkhard Freiburg-Neuhaus
Life of this patent
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Abstract
An adjustment apparatus for a forage harvester including a shear bar which is adjustably mounted on a housing which supports a chopper drum mounted for rotation about an axis and having a plurality of circumferentially spaced knife supports holding adjustably secured chopper knifes. The chopper knives act with the shear bar to chop incoming crop. The adjustment apparatus includes a lateral element, at least one location element and at least one radially inwardly directed guide surface, which follows a desired outer path of an unworn chopper knife.
Claims17
An adjustment apparatus for use with a forage harvester, in which a shear bar is adjustably mounted on a housing, a chopper drum is supported by the housing and mounted for rotation about a rotational axis and comprises a plurality of circumferentially spaced knife supports for adjustably securing at least one chopper knife, wherein the chopper knives cooperate with the shear bar to chop incoming crop, the adjustment apparatus comprising:
- a lateral element;
- at least one location element configured for mating engagement with a receiving surface of the forage harvester for locating the lateral element with respect to the chopper drum;
- and
- at least one radially inwardly directed guide surface on the lateral element, wherein each of the at least one guide surfaces is configured to align with an outer path of an unworn chopper knife on the chopper drum.
A system for adjusting crop chopping equipment, the system comprising:
- a forage harvester, comprising:
- a housing provided with first and second side walls;
- a shear bar adjustably mounted between the side walls of the housing, the shear bar having a target surface;
- a chopper drum supported from the housing and mounted for rotation about a rotational axis comprising a plurality of circumferentially spaced knife supports for adjustably securing at least one chopper knife wherein the chopper knives cooperate with the shear bar to chop incoming crop;
- an adjustment apparatus comprising:
- a lateral element;
- at least one location element for locating the lateral element with respect to the chopper drum, the at least one location element having a locating surface for mating engagement with a receiving surface of the forage harvester, the at least one location element having a shoulder;
- at least one shear bar alignment surface on the shoulder of each of the at least one location elements, the shear bar alignment surface for mating engagement with the target surface of the shear bar by which the shear bar is located adjacent the chopper drum;
- and
- at least one spacer element connected to the lateral element, wherein the each of the at least one spacer elements has at least one radially inwardly directed guide surface, wherein each of the at least one guide surfaces is configured to align with an outer path of an unworn chopper knife on the chopper drum.
Dependencies are inferred from the claim text.