Adjustable infeed vanes

Patent metadata

Field	Value
Publication number	US-11013181-B2
Application number	US-201816194901-A
Country	US
Kind code	B2
Filing date	Nov 19, 2018
Priority date	Nov 17, 2017
Publication date	May 25, 2021
Grant date	May 25, 2021

Abstract

A threshing system of an agricultural harvester. The threshing system including a rotor cage surrounding a rotor defining a threshing space there between. The rotor cage has a cut crop entrance, a transition cone defining an infeed to the rotor cage, where the transition cone is positioned to direct crop flow toward the cut crop entrance of the rotor cage. The threshing system also includes an infeed ramp positioned between the rotor cage and the transition cone, where the infeed ramp includes guide vanes for guiding the crop flow from the transition cone into the cut crop entrance of the rotor cage.

First claim

What is claimed is:

1. A threshing system of an agricultural harvester comprising:
a rotor cage surrounding a rotor defining a threshing space there between, the rotor cage having a cut crop entrance;
a transition cone defining an infeed to said rotor cage, the transition cone positioned a distance from the rotor cage to direct crop flow toward the cut crop entrance of the rotor cage, the distance defining a gap between the transition cone and the rotor cage; and
an infeed ramp connected to a section of the rotor cage, and positioned to span the gap by extending at least a portion of the distance from the rotor cage to the transition cone, the infeed ramp including guide vanes for guiding the crop flow from the transition cone into the cut crop entrance of the rotor cage, the infeed ramp and the section of the rotor cage being adjustable relative to the transition cone.

2. The threshing system of claim 1 , wherein the infeed ramp is positionable relative to the rotor.

3. The threshing system of claim 2 , wherein the infeed ramp is hinged at a distance relative to the rotor such that the infeed ramp is positioned to be flush with the transition cone.

4. The threshing system of claim 2 , wherein the infeed ramp is hinged at a distance relative to the rotor such that the infeed ramp is positioned to be below the transition cone.

5. The threshing system of claim 2 , wherein a controller of the agricultural harvester controls an actuator to adjust the hinged distance of the infeed ramp based on at least one of crop type, user input distance settings or crop throughput.

6. The threshing system of claim 1 , wherein the guide vanes of the infeed ramp extend at an angle relative to the longitudinal axis of the rotor from the transition cone towards the rotor cage.

7. The threshing system of claim 1 , wherein the guide vanes of the infeed ramp extend in a direction of the rotor rotation from the transition cone towards the rotor cage.

8. The threshing system of claim 1 , wherein the guide vanes are at least one of metal, rubber or plastic.

9. The threshing system of claim 1 , wherein the guide vanes are molded into the infeed ramp.

10. The threshing system of claim 1 , wherein the guide vanes are fastened to the infeed ramp by fasteners.

11. An agricultural harvester comprising:
a feeder configured to receive harvested crop;
a rotor cage surrounding a rotor defining a threshing space there between, the rotor cage having a cut crop entrance;
a transition cone defining an infeed to said rotor cage, the transition cone positioned a distance from the rotor cage to direct crop flow from the feeder toward the cut crop entrance of the rotor cage, the distance defining a gap between the transition cone and the rotor cage;
an infeed ramp connected to a section of the rotor cage, and positioned to span the gap by extending at least a portion of the distance from the rotor cage to the transition cone, the infeed ramp including guide vanes for guiding the crop flow from the transition cone into the cut crop entrance of the rotor cage; and
a controller configured to control an actuator to adjust an alignment of the infeed ramp and the section of the rotor cage with the transition cone.

12. The agricultural harvester of claim 11 , wherein the infeed ramp is hinged to the rotor cage and the controller is further configured to control the actuator to position the infeed ramp relative to the rotor.

13. The agricultural harvester of claim 12 , wherein the controller is further configured to control the actuator to position the infeed ramp at a distance relative to the rotor such that the infeed ramp is positioned flush with the transition cone.

14. The agricultural harvester of claim 12 , wherein the controller is further configured to control the actuator to position the infeed ramp at a distance relative to the rotor such that the infeed ramp is positioned below the transition cone.

15. The agricultural harvester of claim 12 , wherein the controller is further configured to control the actuator to position the infeed ramp based on at least one of crop type, user input distance settings or crop throughput.

16. The agricultural harvester of claim 11 , wherein the guide vanes of the infeed ramp extend at an angle relative to the longitudinal axis of the rotor from the transition cone towards the rotor cage.

17. The agricultural harvester of claim 11 , wherein the guide vanes of the infeed ramp extend in a direction of the rotor rotation from the transition cone towards the rotor cage.

18. The agricultural harvester of claim 11 , wherein the guide vanes are at least one of metal, rubber or plastic.

19. The agricultural harvester of claim 11 , wherein the guide vanes are molded into the infeed ramp.

20. The agricultural harvester of claim 11 , wherein the guide vanes are fastened to the infeed ramp by fasteners.

Assignees

• Cnh Ind America Llc

Inventors

• Lesher Joshua
• Veikle Eric

Classifications

• A01F7/067 Primary

  with material-flow influencing means · CPC title

• A01F12/26

  Multi-part threshing concaves · CPC title

• A01F12/58

  Control devices; Brakes; Bearings · CPC title

• A01F12/181 Primary

  Adjustable threshing mechanisms · CPC title