Compound epicyclic cog belt speed reducer

Details Compound epicyclic cog belt speed reducer Compound epicyclic cog belt speed reducer

1980-02-15

1982-03-30

Byers, Jr., Nile C.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74750R, 74781R, 74797, 404122, 74766, F16H 128, F16H 926, F16H 1108

Patent

active

043218423

ABSTRACT:
In a speed reducer, a reaction sun is fixed to a frame and an output sun is coaxial with the reaction sun. An idler carrier assembly, rotatable about the common axis of the two suns, carries a planet shaft supporting a reaction planet and an output planet for conjoint rotation and in radial alignment, respectively, with the reaction sun and the output sun. Rotation of the idler carrier assembly effects orbiting of the planet shaft and its planets about the common axis of the suns. Endless loop force-transmitting elements connect corresponding suns and planets. Rotary input power is applied to the planet shaft effecting conjoint rotation of the planets and orbiting of the planets about the suns' axis. The epicyclic motion of the output planet effects rotation of the output sun. In a preferred embodiment, an input shaft carries a separate input sun coaxial with the other suns; the planet shaft supports an input planet in addition to supporting the output and reaction planets; and the input sun and the input planet are connected by an additional endless loop force-transmitting element. The input shaft is driven by a high-speed electric motor at a speed of at least 3,000 rpm and the velocity ratio of the speed reducer is at least 1,000:1.

REFERENCES:
patent: 3115794 (1963-12-01), Morin
patent: 3156136 (1964-11-01), Sogabe
patent: 3481222 (1969-12-01), Baron
patent: 3842685 (1974-10-01), Philpott
patent: 3919895 (1975-11-01), Kerr
patent: 4044633 (1977-08-01), Lee
patent: 4183266 (1980-01-01), Osumi
patent: 4186626 (1980-02-01), Chamberlain

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