Gathering chain adjustment mechanism for forage harvester row cr

Details Gathering chain adjustment mechanism for forage harvester row cr Gathering chain adjustment mechanism for forage harvester row cr

1991-03-06

1992-06-02

Melius, Terry Lee

Harvesters

Cornstalk type

Cutters

56102, 56119, A01D 4500

Patent

active

051176181

ABSTRACT:
A row crop attachment for forage harvesters has a plurality of row crop divider units arranged side-by-side on a base frame to define a plurality of crop conveying paths. A pair of gathering chains are arranged to pass through each crop conveying path from entrance to an exit thereof for conveying crop material rearwardly through the crop conveying paths. Each gathering chain is wrapped around a drive sprocket and an idler sprocket. An adjustment mechanism is provided for adjusting tension in each gathering chain. The adjustment mechanism includes a shaft connected at one end with the idler sprocket, a pawl engageable with the shaft for holding the shaft in an adjusted position, and an adjusting bolt associated with the other end of the shaft for moving the shaft into the adjusted position. A fitting is carried on the adjusting bolt for movement longitudinally thereof in response to rotation of the adjusting bolt, and a spring is compressed between the fitting and the other end of the shaft for urging the shaft and the idler sprocket away from the drive sprocket to thereby maintain tension in the gathering chain.

REFERENCES:
patent: Re31063 (1982-10-01), Greiner et al.
patent: 2647353 (1953-08-01), Doet
patent: 4539799 (1985-09-01), Kalverkamp
patent: 4566256 (1986-01-01), Sousek

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