Co-rotational axial flow combine

Details Co-rotational axial flow combine Co-rotational axial flow combine

1990-08-21

1991-09-03

Novosad, Stephen J.

Crop threshing or separating

Threshing

Axial flow through threshing section

460 67, 460 68, 460 70, 460 72, 460113, A01F 706, A01F 1218, A01F 1220

Patent

active

050450255

ABSTRACT:
A combine for cutting and threshing grain has an axial flow threshing drum. A feeder head mounts to the forward end of the threshing drum. Impellers on the feeder head push grain into the threshing drum housing and also provide threshing. Rasp bars on the feeder head thresh the crop prior to reaching the threshing drum while pushing the crop through perforations in the feeder housing. The feeder housing and threshing drum housing rotate, but at a slower speed than the threshing drum. A brake will prevent the threshing drum housing from rotating at an excessive speed. Clearances between the threshing drum and threshing drum housing, and clearances between the feeder head rasp bars and feeder housing, ca be adjusted for different crop conditions.

REFERENCES:
patent: 3828793 (1974-08-01), Gochanour
patent: 4078571 (1978-03-01), Todd et al.
patent: 4178943 (1979-12-01), West
patent: 4236530 (1980-12-01), Johnson
patent: 4489733 (1984-12-01), Underwood
patent: 4535787 (1985-08-01), Underwood
patent: 4986794 (1991-01-01), Ricketts
A page from a brochure from case International.

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