Auger conveyor |
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| 申请号 | US3757928D | 申请日 | 1971-12-17 | 公开(公告)号 | US3757928A | 公开(公告)日 | 1973-09-11 |
| 申请人 | DEERE & CO; | 发明人 | HOOK R; ZAUN R; | ||||
| 摘要 | A generally upright auger conveyor is illustrated as part of a beet harvester and includes an endless chain carrying a plurality of paddles which extend into the confines of the helical flight of the auger. Engagement between the paddles and helical flight drives the endless chain so that the paddles are advanced by the helical flight. The paddles prevent material advanced by the helical flight from gravitating down the helical flight and thereby increase the efficiency of the auger conveyor. | ||||||
| 权利要求 | 1. Material conveying apparatus comprising: a rotatable auger inclined to the horizontal including an elongated core and a helical flight encircling and secured to the core; an elongated housing surrounding the auger; a pair of roller means mounted on the housing in spaced apart relationship along the length of the housing; endless flexible means trained about the roller means to present a pair of flights extending between the roller means; a plurality of paddles having opposite edges and a working side extending between the edges; and means securing the paddles to the endless flexible means for movement therewith and disposing at least a portion of the paddles on one flight of the endless flexible means within the confines of the helical flight with the opposite edges of each generally facing axially-spaced portions of the helical flight and the working side of each facing generally opposite to the direction of rotation of the auger to engage and prevent material on the flighting from gravitating on the helical flighting. 2. Apparatus as set forth in claim 1 wherein the roller means and endless flexible means are mounted exteriorly of the housing, the housing is provided with a longitudinal opening, and the paddles on the one flight of the endless flexible means extend through the opening provided in the housing. 3. Apparatus as set forth in claim 2 wherein an elongated housing for the endless flexible means is mounted on the exterior of the auger housing; the roller means are journaled in the housing for the endless flexible means adjacent the ends thereof, and the housing for the endless flexible means is provided with an elongated opening aligned with the opening in the auger housing. 4. Apparatus as set forth in claim 3 wherein each of said roller means includes a pair of spaced sprocket wheels fixed to a common shaft, the endless flexible means includes a pair of chains trained about the sprocket wheels, and each of the paddles has one end rigidly interconnected with one of the chains and an intermediate portion rigidly interconnected with the other of the chains. 5. Apparatus as set forth in claim 4 wherein each of the paddles is rigidly interconnected with the pair of chains by a bracket secured to the pair of chains and including a pair of legs projecting in planes parallel to the planes of the chains, the legs of each bracket are of unequal length, the one end of each paddle is connected to the shorter of the pair of legs of the respective bracket and the intermediate portion of each paddle is connected to the longer of the pair of legs of the respective bracket. 6. Apparatus as set forth in claim 5 wherein a pair of rollers are carried by each bracket and a pair of roller tracks are mounted in the housing for the endless flexible means to be engaged by the rollers carried by the brackets on the one flight of the endless flexible means. 7. Material conveying apparatus comprising: a rotatable auger inclined to the horizontal including an elongated core and a helical flight encircling and secured to the core and having axially-spaced portions; an elongated housing surrounding the auger; a pair of roller means mounted on the housing in spaced apart relation along the length of the housing; endless flexible means trained about the roller means to present drive and return flights extending between the roller means; a plurality of paddle members having opposite edges and a working side extending between the edges; and means securing the paddle members to the endless flexible means and disposing at least a portion of each of the paddle members on the drive flight of the endless flexible means between a pair of the axially-spaced portions of the helical flight with the opposite edges generally facing axially-spaced portions of the helical flight and the working side facing generally opposite to the direction of rotation of the auger to engage and prevent material on the flighting from gravitating on the helical flighting. 8. Material conveying apparatus as set forth in claim 7 wherein corresponding portions of adjacent paddle members are spaced apart a distance equal to corresponding surfaces of the axially spaced portions of the helical flight whereby the axially spaced portions of the helical flight will engage the paddle members on the drive flight of the endless flexible means upon rotation of the auger to drive the paddle members and endless flexible means. 9. Material conveying apparatus as set forth in claim 8 wherein each of the paddle members includes a drive roller positioned to move along the surface of the helical flight. 10. Material conveying apparatus as set forth in claim 7 wherein the roller means and endless flexible means are mounted exteriorly of the auger housing, the auger housing is provided with an elongated opening extending generally parallel to the axis of rotation of the auger, and the paddle members on the drive flight of the endless flexible means extends through the elongated opening in the auger housing and generally toward the center of the auger. 11. Material conveying apparatus as set forth in claim 10 wherein an elongated housing for the endless flexible means is secured to the exterior of the auger housing and is provided with an elongated opening in alignment with the elongated opening provided in the auger housing, and the roller means are journaled in the housing for the endless flexible means adjacent the opposite ends thereof. 12. Material conveying apparatus as set forth in claim 11 wherein each of the roller means includes a pair of sprocket wheels secured to a common shaft journaled in the housing for the endless flexible means, the endless flexible means includes a pair of chains trained about the sprocket wheels, each of the paddle members is a flat elongated paddle member having one end rigidly interconnected to one of the chains of the pair of chains, an intermediate portion rigidly interconnected to a second of the chains of the pair of chains, and a second end projecting away from the chains, and corresponding portions of adjacent paddle members are spaced apart a distance equal to corresponding surfaces of the axially-spaced portions of the helical flight whereby the axially-spaced portions of the helical flight will engage the paddle members on the drive flight of the endless flexible means upon rotation of the auger to drive the paddle members and the endless flexible means, and, as the spaced apart portions of the helical flight engage the paddle members on the drive flight of the endless flexible means to drive the paddle members and endless flexible means, the pair of chains counteract the forces exerted on the paddle members by the spaced apart portions of the helical flight to maintain the paddle members properly oriented. 13. Material conveying apparatus as set forth in claim 12 wherein each of the paddle members further includes a drive roller secured to its respective paddle member in position to engage and move along the helical flight when its respective paddle member is on the drive flight of the endless flexible means. 14. Material conveying apparatus as set forth in claim 12 wherein each of the paddle members is secured to the chains through a bracket having a pair of legs of unequal lengths, the long leg of the bracket is secured to the one of the chains and the short leg of the bracket is secured to the second of the chaIns whereby each of the paddle members extends outwardly at an angle to a plane formed by the respective flights of the pair of chains, the housing for the endless flexible means is rectangular-shaped in cross section and the elongated opening provided therein is adjacent one corner thereof, and the shafts for the sprocket wheels have opposite ends journaled on opposite walls of the housing for the endless flexible means in non-perpendicular relationship therewith so that the paddle members on the drive flights of the chains lie in a plane perpendicular to one end wall of the housing for the endless flexible means and project through the elongated openings provided in the two housings and the paddle members on the return flights of the chains extend into a corner of the housing for the endless flexible means. 15. Apparatus as set forth in claim 14 wherein each of the brackets carries a pair of guide rollers on its pair of legs, and a pair of tracks for the rollers on the drive flight of the endless flexible means are mounted in the housing for the endless flexible means. 16. Material conveying apparatus comprising: an elongated circular housing adapted to be positioned at an angle with respect to the horizontal; an auger journaled in the housing including a core and a helical flight secured to the core; the helical flight having a continuous leading material-engaging face having axially aligned portions spaced equal distances apart; a pair of roller means mounted exteriorly of the housing in spaced apart relationship along the length of the housing; endless flexible means trained about the roller means to present drive and return flights extending between the roller means; a plurality of paddle means each including a flat paddle member; means securing the paddle means to the endless flexible means in positions to have corresponding portions of adjacent paddle members spaced apart a distance equal to the axial spacing between the axially aligned portions of the helical flight and disposing each of the paddle members to have its sides lie in planes generally parallel to the axis of rotation of the auger when on the drive and return flights of the endless flexible means and when on the drive flight to extend through an elongated opening provided in the housing and between the axially-spaced portions of the helical flight whereby upon rotation of the auger, the paddle members on the drive flight of the endless flexible means will be engaged and driven in the direction of material movement and a working side of each will engage and prevent material being elevated on the leading face of the helical flight from gravitating on the continuous leading face of the helical flight. 17. Apparatus as set forth in claim 16 wherein each of the pair of roller means includes a pair of sprocket wheels mounted on a common shaft and operatively interconnected with each other for uniform rotation, the endless flexible means includes a pair of chains, and each of the paddle members is rigidly secured to both chains. 18. Apparatus as set forth in claim 17 wherein each of the paddle members has one end secured to one of the chains and an intermediate portion secured to a second of the chains, and a drive roller mounted thereon to engage and roll along the leading face of the helical flight upon rotation of the auger. 19. Apparatus as set forth in claim 18 wherein each of the paddle members is secured to the pair of chains by bracket means including a pair of legs secured to the chains, a pair of thrust rollers are mounted on the pair of legs, a secondary elongated housing is secured to the exterior of the auger housing and is provided with an elongated opening which registers with the elongated opening provided in the auger housing, the shafts for the sprocket wheels are mounted in the secondary housing adjacent the ends thereof, and a pair of thrust tracks are mounted in the secondary housing for engagement with the thrust rollers on the drive flights on the chains whereby engagement between the thrust tracks and thrust rollers prevents the force of material against the paddle members from moving the paddle members out of their normal planes. 20. Apparatus as set forth in claim 19 wherein the legs of each bracket means are of unequal lengths so that the paddle members on the drive and return flights of the chains lie in planes which converge away from the auger. |
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