Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1975-04-14
1976-10-12
Gerin, Leonard H.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
F16H 712
Patent
active
039850382
ABSTRACT:
A self-propelled combine has a series of rotary paddles for moving the crop rearwardly along the feeder housing from the platform to the combine separation system. The paddles are driven by a series of interconnected chain drives on the side of the feeder house, each drive including a chain trained around sprockets on the adjacent paddle shafts, and each drive is provided with an adjustable idler to vary the chain tension. Each idler includes a hexagonal shaft mounted in a support for adjustment normal to the shaft axis, and a ball type bearing is mounted on the shaft, the bearing having an inner periphery conforming to the shaft cross section so that it is axially slidable but nonrotatable thereon. The outer race of the bearing is provided with a sprocket that engages the drive chain, and the idler shift freely shifts along the shaft within limits to stay in alignment with the driven and driven sprockets.
REFERENCES:
patent: 1803186 (1931-04-01), Hendrickson
patent: 2193936 (1940-03-01), Ostand et al.
patent: 2823553 (1958-02-01), Harrington
patent: 3666322 (1972-05-01), Pickron
Deere & Company
Gerin Leonard H.
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