Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1977-11-21
1979-01-09
Wyche, Benjamin W.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74689, 74789, F16H 344
Patent
active
041332253
ABSTRACT:
An agricultural crop harvester's feeding and gathering units are driven by a power source on the harvester through a sheave assembly journaled on a countershaft mounted towards the rear of the feeding unit. Power is thence transmitted by a variable ratio V-belt drive to a speed reducing and direction reversing planetary gear unit mounted forwardly on the feeding unit and finally to the gathering and feeding mechanisms by drives of conventional design. In the variable ratio V-belt drive, the effective diameter of a split sheave output portion of the countershaft sheave assembly is selectively adjusted hydraulically while, in inverse response, the effective diameter of a spring loaded variable driven split sheave, integral with the planetary gear unit, adjusts automatically. In addition, the driven sheave is provided with a coaxial cam arrangement responsive to changes in torque transmitted so that its effective diameter also adjusts automatically to provide appropriate belt tension. Interposing a speed reducing planetary gear unit in the drive system following the V-belt drive makes possible the use of comparatively higher belt speeds and smaller sheave diameters and facilitates provision of a selectively reversible drive to the gathering and feeding units. The reversed speed of rotation of the output of the planetary unit is substantially lower than its forward speed.
REFERENCES:
patent: 2497338 (1950-02-01), Baron
patent: 3106997 (1963-10-01), White
patent: 3375738 (1968-04-01), Love
patent: 3641843 (1972-02-01), Lemmens
Deere & Company
Ratliff, Jr. Wesley S.
Wyche Benjamin W.
LandOfFree
Variable speed reversible drive for a harvesting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable speed reversible drive for a harvesting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable speed reversible drive for a harvesting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1783503