Combine rotor drive anti-trash system

Details Combine rotor drive anti-trash system Combine rotor drive anti-trash system

1979-07-02

1981-02-03

Hirsch, Paul J.

56 146, A01F 706, A01F 1254, A01F 1218

Patent

active

042482496

ABSTRACT:
An axial flow combine having a crop harvesting header including a feeder for cutting a crop and feeding it rearwardly into a threshing and separating mechanism. The mechanism includes a casing for receiving the crop material and a rotor within the casing for threshing and separating grain from the crop material. The rotor has a central drive shaft driven through a gear case behind the rotor. The gear case is partially enclosed within a cover having a smooth exterior surface. The end of the rotor is configured in a smooth exterior surface which is complementary to the surface of the cover to inhibit collection of chaff about the drive shaft. Impeller blades are secured on the rotor for creating an air flow directing crop material away from the drive shaft to prevent crop material wrapping about the shaft or accumulating in the drive system.

REFERENCES:
patent: 2669826 (1954-02-01), Watrous
patent: 2815634 (1957-12-01), Bush
patent: 2910819 (1959-11-01), Holliwell
patent: 2953888 (1960-09-01), Phillips, Jr. et al.
patent: 3000165 (1961-09-01), Lill
patent: 3522693 (1970-08-01), Knapp
patent: 3589111 (1971-06-01), Gullickson et al.
patent: 4148323 (1979-04-01), McMillin et al.

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