Broken flight auger with anti-bridging device

Details Broken flight auger with anti-bridging device Broken flight auger with anti-bridging device

1998-05-18

2000-10-03

Pezzuto, Robert E.

Harvesters

Motorized harvester

Having driven means for handling or treating crop

56 102R, 460 7, A01F 1200

Patent

active

06125620&

ABSTRACT:
In an agricultural harvester a characteristic of crop material is monitored or measured as the crop material is conveyed through a feed tube by an auger. To obtain a more uniform packing density of the crop material in a sensing region where the measurement is made, a section of the auger flight is removed. An upstream section of flighting pushes the crop material into and through the sensing region and after it has been pushed through the sensing region it is conveyed away from the sensing region by a downstream section of flighting. The velocity of the crop material being pushed through the sensing region is not uniform across the radius of the feed tube and a layer of slowly moving crop material is formed adjacent the wall of the feed tube. A strap-like wiper element is provided in the sensor region to wipe or disperse the slowly moving layer of crop material. The ends of the wiper element are fastened to the downstream extent of the upstream flighting section and the upstream extent of the downstream flighting section. An opening between the wiper and the auger shaft permits passage of crop material being pushed through the sensing region.

REFERENCES:
patent: 5092819 (1992-03-01), Schroeder et al.
patent: 5106339 (1992-04-01), Braun et al.
patent: 5318444 (1994-06-01), Kuzub et al.
patent: 5716272 (1998-02-01), Nelson

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