Adjustable crop residue flow distributor for a vertical spreader of an agricultural combine
View Patent ↗An adjustable flow distributor for a vertical spreader operable for discharging a flow of straw and other crop residue in a sideward direction for deposition over a field, the flow distributor including a metering edge and the adjustability allowing positioning the metering edge for tailoring or adjusting a pattern of discharged flow of crop residue, for instance, so as to be better and more evenly distributed over a swath of an agricultural field from which the crop was harvested, particularly a region of the swatch in proximity to the spreader and/or chopper.
1. A fore and aft adjustable flow distributor for a vertical crop residue spreader of an agricultural combine, comprising:
a flow guide having a first end portion, a second end portion opposite the first end portion, and opposite fore and aft edges extending between the first and second end portions defining a crop residue flow surface extending therebetween, wherein the flow surface has an upwardly directed concave shape; and
an adjustable support structure configured for supporting the flow guide with at least the first end portion thereof disposed beneath a downwardly facing portion of a discharge opening of the spreader and the second end portion extending sidewardly therefrom such that at least a portion of a flow of crop residue discharged through the opening will strike and flow sidewardly along the flow surface and sidewardly therefrom so as to be distributed thereby over a region of a field located sidewardly of the spreader, the support structure including an adjusting mechanism operable for moving the flow guide fore and aft in relation to the discharge opening for adjustably positioning at least one of the fore edge and the aft edge beneath the discharge opening, the at least one of the fore edge and the aft edge being shaped so as to alter a pattern of crop residue distribution over a field as a function of a fore and aft position of the edge beneath the discharge opening.
2. The flow distributor of claim 1 , wherein at least a portion of the at least one of the fore edge and the aft edge has a fore and all extending tapered shape.
3. The flow distributor of claim 2 , wherein the at least one of the fore edge and the aft edge comprises the aft edge and the tapered shape extends sidewardly outwardly and forwardly toward the second cud portion of the flow guide.
4. The flow distributor of claim 1 , wherein the crop residue flow surface has an upwardly and sidewardly outwardly facing concave curved shape so as to be capable of guiding a flow of crop residue discharged downwardly from the discharge opening upwardly and sidewardly outwardly therefrom.
5. The flow distributor of claim 1 , wherein at least one of the fore and aft edges of the flow guide is a metering edge which tapers toward the other of the edges in the sideward outward direction.
6. The flow distributor of claim 1 , wherein the flow guide is supported such that at least the second end portion thereof is movable upwardly anti downwardly relative to the discharge opening.
7. The flow distributor of claim 1 , wherein the adjusting mechanism includes an actuator remotely controllable for moving the flow guide in the fore and aft directions.