Replacing concave inserts for a rotary combine
AssigneeCase Corporation
InventorsClint J. Imel, Robert A. Matousek, Glenn E. Pope, Jon E. Ricketts
Life of this patent
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Abstract
A method for replacing the concave insert of a rotary combine. The rotary combine includes a rotor having a longitudinal axis of rotation and a concave removably mounted adjacent the rotor. The concave is removable in a direction outwardly transverse relative to the axis of rotation of the rotor. In a preferred embodiment, a concave assembly includes a longitudinally extending frame having first and second sides spaced circumferentially around the rotor. Each of the first and second sides is transversely moveable relative to the axis of rotation of the rotor. A concave insert is removably mounted to the frame.
Claims7
A method for replacing a concave insert in a rotary combine, said method comprising:
- providing a rotor having a longitudinal extent and a longitudinal axis of rotation;
- providing a support structure disposed adjacent said rotor;
- providing a longitudinally extending frame comprising first and second sides spaced circumferentially around said rotor and at least a first and second rib member extending transversely between said first and second sides of said frame, said first and second rib members longitudinally spaced apart and defining an opening therebetween;
- providing at least a first and second concave insert, each of said first and second concave inserts comprising a first and second end spaced circumferentially around said rotor, said first end of said first concave insert releasably secured to said first side of said frame and said first end of said second concave insert releasably secured to said second side of said frame, said each of said first and second concave inserts dimensioned to pass through said opening in an outwardly, transverse direction relative to said rotor;
- removing said first concave insert through said opening;
- providing a replacement concave insert having a first and second end;
- inserting said replacement concave insert through said opening.
A method for replacing a concave insert in a rotary combine, said method comprising:
- providing a rotor having a longitudinal extent and a longitudinal axis of rotation;
- providing at least a first and second concave, each of said first and second concave comprising a first and second end spaced circumferentially around said rotor, said first end of said first concave releasably, pivotally mounted about a first pivot axis, said first pivot axis substantially parallel to said axis of rotation of said rotor, and said first end of said second concave releasably, pivotally mounted about a second pivot axis substantially parallel to said axis of rotation of said rotor, said second pivot axis circumferentially spaced around said rotor from said first pivot axis;
- pivoting said second end of said first concave around said first pivot axis in an outwardly, transverse direction relative to said rotor;
- disengaging said first end of said first concave from said structure at said first pivot axis;
- providing a replacement concave having a first and second end;
- engaging said first end of said replacement concave with said structure at said first pivot axis;
- pivoting said second end of said replacement concave about said first pivot axis in an inwardly transverse direction relative to said rotor.
Dependencies are inferred from the claim text.