US 2008/0167100 A1Published application

Locking system for attaching a threshing and/or separating element to a rotor of a threshing system

AssigneeCNH America LLC

InventorsHerbert M. Farley, Wayne Flickinger, Mark Luke Nolt, Luke W. Morrie, David Michael DeChristopher, F. Jay Eichelberger

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Abstract

A locking system for attaching a threshing and/or separating element to a mounting lug on a rotor of a threshing system of an agricultural combine, including a single bolt attachment with multiple points of contact between the element and the lug created by a convex portion extending from an inner surface of the threshing and/or separating element cooperatively engaged in a recessed portion of the mounting lug. The locking system resists loading conditions generated when the crop mat engages the element, prevents radially outward movement of the threshing and/or separating element relative to the mounting lug, and reduces the stress on the mounting hardware during harvesting operations.

Claims11

Dependent claims

A rotor of a threshing system of an agricultural combine, comprising:

a body supported for rotation in a direction of rotation about a rotational axis therethrough, the body having an outer circumferential surface;
a plurality of mounting lugs arranged on the circumferential surface in a predetermined pattern;
each of the mounting lugs including a concave receptacle facing in the direction of rotation, a lip disposed radially outwardly of the concave receptacle and extending in the direction of rotation therefrom, and a radial outer surface with a hole adapted for a mounting attachment;
and
a plurality of threshing elements, each of the threshing elements including a forward end facing in the direction of rotation and a radial inner surface mounted to the radial outer surface of one of the mounting lugs;
the radial inner surface of the forward end of the threshing element including a tab extending radially inwardly and cooperatively received within the concave receptacle of the mounting lug, interlocking the threshing element with the mounting lug to prevent radially outward movement of the forward end of the threshing element relative to the mounting lug.

3 more elements

Dependencies are inferred from the claim text.