Torsionally compliant gear for use in multiple load path transmi

Details Torsionally compliant gear for use in multiple load path transmi Torsionally compliant gear for use in multiple load path transmi

1987-10-05

1989-05-23

Herrmann, Allan D.

Machine element or mechanism

Gearing

Yieldability in gear trains

74414, 74421R, 74443, 464 90, 464160, F16H 5514, F16D 376

Patent

active

048318973

ABSTRACT:
Unequal loading in multiple load path transmissions having independent gear trains 18, 20, interconnecting an input and an output shaft 12 and 14, respectively, is avoided through the use of a torsionally compliant gear 22 located in each gear train 18 and 20. Each torsionally compliant gear 22 includes a hub 40 and a ring 46 having external gear teeth 48 about the hub 40 in concentric spaced relation. A body 50 of elastomeric material is disposed between the hub 40 and the ring 46 and spring fingers 68 carried by the ring 46 at least somewhat radially extend toward the hub 40. Stops 84 are carried by the hub 40 and are positioned to be normally spaced from the spring fingers 68 when low loads are transmitted by the gear and to engage the spring fingers 68 when predetermined higher loads are to be transmitted by the gear.

REFERENCES:
patent: 1043012 (1912-10-01), Hudson
patent: 1854941 (1932-04-01), Kiel
patent: 2407114 (1946-09-01), Tyler et al.
patent: 2727368 (1955-12-01), Morton
patent: 2869388 (1959-01-01), Kreis
patent: 3195324 (1965-07-01), Sellwood et al.
patent: 3371549 (1968-03-01), Schrempp
patent: 3406583 (1968-10-01), Baier
patent: 3499343 (1970-03-01), Burkhardt et al.
patent: 3633441 (1972-01-01), Wicks et al.
patent: 4189951 (1980-02-01), Sauter
patent: 4674351 (1987-06-01), Byrd

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