Balanced epicyclic sickle drive

Details Balanced epicyclic sickle drive Balanced epicyclic sickle drive

2006-10-17

2006-10-17

Kovács, Áprád Fábián (Department: 3671)

Harvesters

Cutting

Cutter members

C074S044000

Reexamination Certificate

active

07121074

ABSTRACT:
A counterbalancing epicyclic sickle drive has a pair of oppositely rotating weights that offset the inertial forces of the sickle during its abrupt acceleration and deceleration at opposite ends of its path of travel. One of the weights rotates with the main shaft of the drive about its longitudinal axis, while the second weight is fixed to an oppositely rotating crankshaft that orbits about the axis of the main shaft in eccentric relationship thereto. The weight on the main shaft is heavier than the weight on the crankshaft so as to offset changes in inertial forces produced by the crankshaft weight during increased acceleration of its center of gravity at opposite ends of its elliptical path of travel about the axis of the main shaft.

REFERENCES:
patent: 2808696 (1957-10-01), Hall
patent: 2819618 (1958-01-01), Slusher
patent: 3112652 (1963-12-01), Freeborn
patent: 3546864 (1970-12-01), White
patent: 3657868 (1972-04-01), Cousino
patent: 3941003 (1976-03-01), Garrison et al.
patent: 4813296 (1989-03-01), Guinn
patent: 4942725 (1990-07-01), Ruder, Sr.
Massey Ferguson Illustrated Parts List 220 Draper Headers (pp. 0, 2-10, 2-12)(3pgs) date Dec. 2001.
Hay & Forage Industries Parts Drawing titled “Gearbox Assembly” (700-150287) (1 pg) date Jul. 1998.
Hay & Forage Industries Parts Drawing titled “Gearbox-Sickle Drive” (700-717-930) (1 pg) date Jul. 1998.

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