Axial flow combine rotor having helical extension members in for

Details Axial flow combine rotor having helical extension members in for Axial flow combine rotor having helical extension members in for

1991-05-21

1992-06-30

Bui, Thuy M.

Crop threshing or separating

Threshing

Axial flow through threshing section

460 72, A01F 1220

Patent

active

051258714

ABSTRACT:
An axial flow combine rotor has an exterior surface, a checkerboard pattern of multiple spaced-apart attachment sites, and a checkerboard pattern of multiple spaced-apart threshing elements in criss-crossing helical rows defining continuous helical criss-crossing paths extending from an entry end to a discharge end of the rotor. The axial flow rotor additionally incorporates helical threshing extension members in its forward threshing area which are substituted for, and occupy the locations of, at least pairs of single-sited threshing elements on the rotor. The extension members are installed in pairs in order to maintain rotor balance. Each extension member replaces at least two of the original single-sited threshing elements of the checkerboard pattern. Each of the helical threshing extension members is installed in one of the helical rows in the forward threshing area of the rotor, connected to and spanning between at least a pair of the multiple spaced attachment sites.

REFERENCES:
patent: 3982548 (1976-09-01), Stamp et al.
patent: 4936810 (1990-06-01), Strong et al.
patent: 5035675 (1991-07-01), Dunn et al.
"Case International 1600 Series Axial-Flow Combines" 36 pages, Document No.: AD-60131CL.
"Axial-Flow Combined Specialty Rotor", 4 pages, Document No.: Form No. AD-60051A.

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