Machine element or mechanism – Gearing – Interchangeably locked
Patent
1981-06-22
1984-04-17
Herrmann, Allan D.
Machine element or mechanism
Gearing
Interchangeably locked
74410, 74339, 192 487, F16H 314
Patent
active
044427280
ABSTRACT:
A transmission includes multiple lay shaft branches driven by gearing on an input shaft. Each lay shaft branch engages a common output gear and includes a clutch. The input shaft is journalled within a hydraulically adjustable bearing which controls input shaft displacement. When friction clutches are employed in the branches, maximum input shaft displacement is provided after clutch engagement to compensate for different frictional forces in each clutch. If positive locking clutches are employed in the branches, maximum input shaft displacement is permitted prior to engagement of the second clutch to provide synchronism between the primary and secondary components of the second clutch. In one embodiment, the adjustable bearing comprises a thrust bearing which permits axial movement of the input shaft while the input shaft gearing comprises helical ring gears having opposite slope. An alternate embodiment encompasses a single drive gear on the input shaft with the bearing being adjustable to permit transverse displacement of the input shaft axis for movement into planes parallel to a common plane of the branch axes.
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Herrmann Allan D.
Rolnicki Joseph M.
Zahnraderfabrik Renk A.G.
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