Bulk flow measurement system

• US 6,472,615 B1
• Filed: 09/08/2000
• Issued: 10/29/2002
• Est. Priority Date: 09/08/2000
• Status: Expired due to Fees

• Current Assignee: Gustafson LLC (Bayer AG)
• Original Assignee: Gustafson LLC (Bayer AG)
• Inventors: Carlson, Brent T.
• Primary Examiner(s): Gibson, Randy W.
• Application Number:
  US09/658,216
• Time in Patent Office: 781 Days
• Field of Search: 177/60, 177/116, 177/119, 177/16, 177/105, 222/56, 222/71, 222/77, 222/564, 141/83
• US Class Current: 177/16
• CPC Class Codes: G01G 13/024 by gravity

Abstract

A grain flow measuring system for a flow rate of grain moving along a grain flow path. The grain flow measuring system includes a frame, a load cell, a flow conditioning portion, and a flow measuring portion. The frame is mounted with respect to the grain flow path. The load cell is mounted to the frame. The flow conditioning portion is attached to the frame. The flow conditioning portion has a first baffle located along the grain flow path. The flow measuring portion has a second baffle and a third baffle that are located in series along the grain flow path. The second baffle and the third baffle deflect grain moving along the grain flow path and thereby causes the flow measuring portion to engage the load cell.

Claims

1. A grain flow measuring system for measuring a flow rate of grain moving along a grain flow path, the grain flow measuring system comprising:

a frame mounted with respect to the grain flow path;

a load cell mounted to the frame;

a flow conditioning portion attached to the frame, the flow conditioning portion comprising a first baffle located along the grain flow path; and

a flow measuring portion having a second baffle and a third baffle that are located in series along the grain flow path, wherein grain moving along the grain flow path deflects the second baffle and the third baffle so that the flow measuring portion engages the load cell.

2. The grain flow measuring system of claim 1, wherein the second baffle comprises a plurality of second baffle elements. wherein the third baffle comprises a plurality of third baffle elements.

3. The grain flow measuring system of claim 2, wherein the plurality of second baffle elements are each oriented substantially parallel to each other, and wherein the plurality of third baffle elements are each oriented substantially parallel to each other.

4. The grain flow measuring system of claim 2, wherein the plurality of second baffle elements are oriented substantially perpendicular to the plurality of third baffle elements.

5. The grain flow measuring system of claim 1, wherein the flow measuring portion is pivotally mounted to the frame.

6. The grain flow measuring system of claim 5, wherein the load cell is positioned intermediate to the second baffle and a point at which the flow measuring portion is pivotally mounted to the frame.

7. The grain flow measuring system of claim 1, wherein the flow measuring portion includes a bowl and a lever arm extending from the bowl.

8. The grain flow measuring system of claim 7, wherein the load cell engages the flow measuring portion through the lever arm.

9. The grain flow measuring system of claim 7, wherein the second baffle and the third baffle are located in the bowl.

10. The grain flow measuring system of claim 1, wherein the first baffle includes a first section and a second section that are oriented substantially perpendicular to each other.

11. The grain flow measuring system of claim 10, wherein a point where the first baffle section and the second baffle section intersect is upstream in the flow path from ends of the first baffle section and the second baffle section.

12. A method of measuring the flow of grain that is moving along a grain flow path, the method comprising:

substantially absorbing a portion of the kinetic energy of the flow of grain along the grain flow path with a first baffle positioned along the grain flow path;

restricting the grain flow to a maximum level;

contacting the flow of grain to a baffle array located in series along the grain flow path, the baffle array connecting to a lever arm; and

determining a force associated with the grain contacting the baffle array by measuring the deflection of the lever arm.

13. The method of claim 12, further comprising the step of controlling an operational parameter of a process portion downstream from the baffle array.

14. The method of claim 12, the baffle array comprising a second baffle and a third baffle, wherein the second baffle and the third baffle are each mounted in a flow measuring portion pivotally mounted to a frame, and wherein contacting the flow of grain to the second baffle and the third baffle causes the flow measuring portion to pivot with respect to the frame.

15. The method of claim 14, wherein pivoting the flow measuring portion with respect to the frame causes the flow measuring portion to engage a load cell.

16. The method of claim 15, wherein the load cell is located intermediate the second baffle and a point at which the flow measuring portion is pivotally mounted to the frame.

17. The method of claim 12, wherein the baffle array has a plurality of second baffle elements and a plurality of third baffle elements.

18. The method of claim 17, wherein the plurality of second baffle elements are oriented substantially perpendicular to the third plurality of baffle elements.

19. The method of claim 12, wherein the first baffle includes a first baffle section and a second baffle section that are mounted substantially perpendicular to each other, and wherein a point where the first baffle section and the second baffle section intersect is upstream in the flow path from ends of the first baffle section and the second baffle section.

20. The method of claim 12, wherein measuring of the force is performed by a load cell.