Planetary gear drive assembly

Details Planetary gear drive assembly Planetary gear drive assembly

1996-02-22

1997-09-02

Marmor, Charles A.

Planetary gear transmission systems or components

Planetary gearing or element

Particular gear tooth feature

475331, 74409, 298931, F16H 146, F16H 5712

Patent

active

056625456

ABSTRACT:
A planetary gear drive assembly for a rotary sprinkler includes a drive housing in which a planetary gear train is enclosed. A turbine located beneath one end of the drive housing rotates the gear train through a turbine shaft that extends into the drive housing. An output shaft extends out of the other end of the drive housing for rotating the nozzle assembly of the rotary sprinkler. The drive assembly includes an alignment means for causing the planetary gears in each stage of the gear train to self align the planetary gears relative to an internal ring gear on the drive housing as each stage is slid into the drive housing during assembly. The alignment means comprises a stepped extension on a forward edge of the ring gear that extends around only a portion of the circumference of the ring gear.

REFERENCES:
patent: 3902237 (1975-09-01), Benjamin
patent: 4662053 (1987-05-01), Aceti et al.
patent: 5323530 (1994-06-01), Goto et al.
patent: 5400506 (1995-03-01), Ichiki et al.
patent: 5429558 (1995-07-01), Lagarde

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