Auger assembly for feed bin

• US 5,328,015 A
• Filed: 05/10/1991
• Issued: 07/12/1994
• Est. Priority Date: 05/10/1991
• Status: Expired due to Fees

• Current Assignee: Beta Raven, Inc. (California Pellet Mill Co.)
• Original Assignee: Beta Raven, Inc. (California Pellet Mill Co.)
• Inventors: Hickman, James B., Volk, Joseph A. Jr.
• Primary Examiner(s): GASTINEAU, CHERYL
• Application Number:
  US07/698,308
• Time in Patent Office: 1,159 Days
• Field of Search: 198/548, 198/550.1, 198/674, 198/672, 198/659, 198/657
• US Class Current: 198/548
• CPC Class Codes: B65G 33/32 Adaptations of bearings or couplings for supporting and connecting screws B65G33/16 takes precedence
• CPC Class Codes: B65G 65/46 using screw conveyors

Abstract

An improved auger design comprises a one-piece assembly with bearings at both the inboard and outboard ends of the auger flight to self-support the auger flight within a discharge tube of the feed bin. Furthermore, a single mounting plate secures the auger to the discharge tube such that a small number of bolts may be removed to thereby facilitate the ready insertion or removal of the auger from within the discharge tube to aid in its cleanability and maintenance or replacement of failed parts.

Claims

1. A feed bin for holding a quantity of dry material in bulk form, said feed bin having a generally horizontally oriented discharge tube extending inwardly therefrom to dump its contents through a discharge opening and into a hopper therefor, and an auger including an auger flight extending through said discharge tube and in communication with the interior of said feed bin for controllably feeding said dry material out of said feed bin, through said discharge tube, and out of said discharge opening, said auger including a drive motor, and an end bearing mounted to said auger flight at said end opposite said drive motor, said auger thereby being one assembly comprised of said drive motor, auger flight, and end bearing adapted for insertion through said discharge tube, and means for mounting said auger to said discharge tube so that said auger assembly may be readily installed or removed as a one-piece assembly from said discharge tube.

2. The device of claim 1 wherein said auger mounting means comprises a mounting plate on an end of said discharge tube, a matching mounting flange on said auger and a plurality of bolts or the like to secure said flange to said plate.

3. The device of claim 2 wherein said discharge opening comprises a notch spaced from the inboard end of said discharge tube and generally in the bottom thereof so that as dry material reaches said discharge opening, gravity tends to cause said dry material to exit from said discharge tube.

4. The device of claim 3 wherein said end bearing is received and supported by that portion of said discharge tube inboard of said discharge opening.

5. The device of claim 4 wherein said auger further comprises a coupler between said drive motor and said auger flight, and a support bearing positioned near the outboard end of said flight so that said flight is supported by bearings at both ends thereof.

6. The device of claim 5 wherein said flight is sized to closely sweep the interior of said discharge tube.

7. In a feed bin for containing a quantity of dry material in bulk, said feed bin having a generally horizontally extending discharge tube through which said dry material may be dispensed, the improvement comprising an auger mounted within said discharge tube, said auger comprising a single assembly including a drive motor, an auger flight connected to said drive motor, and a bearing mounted to an end of said auger flight opposite said drive motor, and means for removably mounting said auger to said discharge tube, said auger mounting means being located near said drive motor end of said auger so that said auger mounting means may be released and said auger removed as a one-piece assembly from said discharge tube.

8. The device of claim 7 wherein said auger further comprises a bearing mounting an end of said auger flight adjacent said drive motor, both of said bearings thereby supporting said auger flight within said discharge tube.

9. The device of claim 8 wherein said auger mounting means comprises means for securing said auger at only one end of said discharge tube.

10. The device of claim 9 wherein said auger mounting means comprises a mounting plate on said feed bin near one end of said discharge tube and a matching mounting flange on said auger, and a plurality of bolts to secure said plate to said flange.

11. The device of claim 10 wherein said mounting plate is situated on an end of said discharge tube and said mounting flange is situated near the drive motor.

12. In a feed bin apparatus for containing a quantity of dry material in bulk, said feed bin apparatus having a plurality of generally horizontally extending discharge tubes through which said dry material may be dispensed into a common weigh hopper, the improvement comprising an auger mounted within each of said discharge tubes, each of said augers comprising a single assembly including a drive motor, the drive motor end of each of said augers being mounted on the outboard end of said discharge tubes, an auger flight connected to said drive motor, bearings mounted adjacent either end of said auger flight to thereby support said auger flight within said discharge tube, and means for mounting said auger to said discharge tube, said auger mounting means comprising a mounting plate on said feed bin apparatus and a matching mounting flange on said auger, and a plurality of bolts to secure said plate to said auger, said auger mounting means being located near said drive motor end of said auger so that said auger may be readily inserted or removed from said discharge tube by releasing said mounting means.

13. The device of claim 12 wherein each of said discharge tubes includes a discharge opening comprising a notch spaced from the inboard end of said discharge tube and generally in the bottom thereof so that as dry material reaches said discharge opening, gravity tends to cause said dry material to exit from said discharge tube.

14. The device of claim 13 further comprising an end bearing for supporting the inboard end of each of said auger flights, said end bearings being received and supported by those portions of said discharge tubes inboard of said discharge openings.