Intermediate shaft thrust balance

Details Intermediate shaft thrust balance Intermediate shaft thrust balance

1984-10-12

1987-02-10

Dorner, Kenneth J.

Machine element or mechanism

Gearing

Pressure distributing

74414, F16H 5700, F16H 106, F16H 120

Patent

active

046415432

ABSTRACT:
An intermediate shaft is provided with a single helical gear, and a double helical gear set having opposite and unequal helix angles. The double helical gear set meshes with a corresponding double helical gear set on a second shaft. A third shaft has a single helical gear meshing with the single helical gear of the intermediate shaft. The meshing of the double helical gear sets locks the intermediate shaft against axial motion. The axial thrust on the intermediate shaft, produced by the inequality between the helix angles of its double helical gear set, is offset by the helix angle of the single helical gear. This substantial equalizing of axial thrust obviates the need for a thrust bearing on the intermediate shaft.

REFERENCES:
patent: 2982146 (1961-05-01), Stoeckicht
patent: 2995046 (1961-08-01), Mansachs
patent: 3011365 (1961-12-01), Stoeckicht
patent: 3102433 (1963-09-01), Stoeckicht
patent: 3245279 (1966-04-01), Baker
patent: 3327548 (1967-06-01), Welch
patent: 3338109 (1967-08-01), Forsyth et al.
patent: 4187735 (1980-02-01), Terry
patent: 4369668 (1983-01-01), Pollak-Banda et al.
Material Proposed to U.S.N. on 11/24/82, The Reverse Reduction Gear 46305 R 1081 is the design of the present applicant (6 sheets).
Guide to Propulsion Reduction, Bull. 3-10, Soc. Naval Architects, 4/61, p. 7.
U.S.N. DDG 51, Western Gear.
Gear-Wheel Co., Maag.
Marine Engineering Design, INST Marine Engineers, pp. 24, 25, 46, 47.
Progress & Development in Naval Propulsion, Weaving and Sampson, pp. 1, 8, 12.
G. E. Main Reduction Gears, p. 1-1.

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