Helicopter rotor head mounting assembly

Details Helicopter rotor head mounting assembly Helicopter rotor head mounting assembly

1978-01-13

1979-11-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Support mounting, carrier or fairing structure

403170, B64C 1102

Patent

active

041759133

ABSTRACT:
A helicopter rotor head mounting assembly includes a rotor drive shaft and rotor hub splined to the shaft for rotation therewith. The rotor hub includes a central bore having an internal tapered portion which is forced downwardly upon a mating tapered portion of the rotor drive shaft. An annular split cone is mounted between the rotor shaft and the hub at a bottom portion of the hub bore and the split cone is forced upwardly into firm engagement with the hub and drive shaft by means of a plurality of individual loading means which are carried by an annular plate affixed to the bottom of the hub. The loading means are individually adjustable and apply loading force directly onto the split cone to thereby assure a secure, non-vibrational rotation of the hub with the rotor shaft.

REFERENCES:
patent: 2547789 (1951-04-01), Skeel
patent: 2899222 (1959-08-01), Ross
patent: 3023035 (1962-02-01), Kelley
patent: 3063743 (1962-11-01), Kylen
patent: 3229028 (1966-01-01), Rapuzzi et al.
patent: 3625631 (1971-12-01), Covington et al.
patent: 3957381 (1976-05-01), Schafer
patent: 3972491 (1976-08-01), Ferris et al.
patent: 4012154 (1977-03-01), Durwin

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