Rethreshing rotor for grain combine

Details Rethreshing rotor for grain combine Rethreshing rotor for grain combine

1994-08-08

1996-03-12

Melius, Terry Lee

Crop threshing or separating

With recycling of processed material

Rethreshing

460119, A01F 1252

Patent

active

054982065

ABSTRACT:
A grain combine according to the present invention includes a primary threshing rotor which rotates to thresh grain from crop, a sieve section for separating grain from chaff, a clean grain conveyor, a clean grain storage bin, and a rethreshing section for rethreshing tailings. The rethreshing section has a rethreshing rotor which receives the tailings from the sieve section. The rethreshing rotor extends completely across an end of the sieve section for rotating about an axis which extends in parallel to the end of the sieve section. The rethreshing rotor includes rasp bars which extend along the end of the sieve section for receiving the tailings and pressing the tailings against a rethreshing pan. In a preferred embodiment, blowers are provided for removing loose chaff from the tailings in the rethreshing section. The rethreshed tailings, including clean grain separated from the tailings by rethreshing, are returned to the primary rotor for rethreshing.

REFERENCES:
patent: 2309736 (1943-02-01), Makin
patent: 2875768 (1959-03-01), Belkowski et al.
patent: 3115142 (1963-12-01), Kepkay
patent: 3247855 (1966-04-01), Kepkay
patent: 4062366 (1977-12-01), De Coene
patent: 4292981 (1981-10-01), De Busscher et al.
patent: 4310004 (1982-01-01), De Busscher et al.
patent: 4441511 (1984-04-01), Schroeder
patent: 4489733 (1984-12-01), Underwood
patent: 4884993 (1989-12-01), Hemker et al.

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