Modular separator element for a threshing system
AssigneeCNH America LLC
InventorsHerbert M. Farley, Wayne Flickinger
Life of this patent
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Abstract
A modular straight separator bar for a rotor for a threshing system of an agricultural combine that is mountable on a single mounting lug and interchangeable with a rasp bar at a plurality of locations on the rotor. As a result, more straight separator bars may be mounted towards the front of the rotor providing the threshing system the capability of performing increased separation in the threshing process without interrupting the helical flow pattern of the crop material.
Claims19
A rotor for 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 including a plurality of mounting lugs arranged in a spaced apart generally helical pattern and defining a generally helical direction for movement of a mat of crop material therealong;
- a plurality of rasp bars mounted individually on the lugs, each rasp bar having an axial extent and a radially outer surface including grooves extending in directions generally aligned with the direction of rotation for performing a threshing function on and encouraging movement of the crop material in the helical direction;
- and
- a plurality of separator bars individually mounted on selected ones of the mounting lugs interchangeably with the rasp bars, so as to be interspersed with the rasp bars in the helical pattern;
- each of the separator bars having an axial extent about equal to the axial extent of the rasp bar and including at least one radially outer edge extending generally transverse to the direction of rotation for engaging and uncoupling smaller components from the mat of crop material and maintaining movement of the mat of crop material in the generally helical direction.
A rotor for a threshing system of an agricultural combine, comprising:
- a body supported for rotation in a direction of rotation about a rotational axis having an outer circumferential surface and including mounting lugs permanently affixed on the outer circumferential surface in a generally helical pattern;
- a plurality of rasp bars individually mounted on a portion of the lugs, each rasp bar having an axial extent and including grooves generally aligned at a small acute angle relative to the direction of motion for rakingly engaging a mat of crop material;
- and
- a plurality of separator bars individually mounted on individual mounting lugs interchangeably with the rasp bars for interspersing the separator bars with the rasp bars in the helical pattern on the circumferential surface;
- each of the separator bars having an axial extent similar to the axial extent of the rasp bar and including at least one radially outer edge extending generally transverse to the direction of rotation for performing a separating function and allowing the mat of crop material to move in the generally helical direction.
A straight separator bar for a rotor of a threshing system of an agricultural combine comprising a sloped leading edge terminating at an agitation element for performing a separation operation on a mat of crop material, the straight separator bar being sized and configured to be mountable on an individual mounting lug fixed on the rotor and selectively interchangeable with individual threshing elements.
Dependencies are inferred from the claim text.