Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1987-07-28
1989-09-12
Diehl, Dwight G.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74460, 74801, F16H 5710
Patent
active
048648930
ABSTRACT:
In a planetary gear apparatus according to the present invention, a first shaft and a second shaft are rotatably supported in a casing. A sun gear is fixed to the first shaft. A fixed internal gear located in the casing is arranged concentric with the sun gear. A rotary internal gear connected to the second shaft is arranged coaxially with the fixed internal gear, and the rotary internal gear has the difference M in the number of teeth with respect to the number of the teeth of the fixed internal gear. N (M.noteq.N, N.noteq.1) planet gears, which revolve around the sun gear, are disposed at equal intervals circumferentially. Each planet gear has a first portion, engaged with the fixed internal gear, and a second portion, engaged with the rotary internal gear. Either one of the first and second portions of the planet gear is engaged with the sun gear. When the number of planet gears is designated circumferentially by i=1, 2, . . . , N, the phase of the teeth of the first portion of the i-th planet gear is shifted in the period of {(i-1)M}/N with respect to that of the teeth of the second portion.
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Masataka Senba: Gear, vol. 10, Nikkan Kogyo, No. 1967, p. 3989.
Muneharu Morozumi: Design of Planetary Gears and Differential Planetary Gears, Sankei, Jun. 1, 1984, p. 124.
Takashi Nakada: Collected Papers of Takashi Nakada, Nov. 25, 1984, p. 192.
Diehl Dwight G.
Kabushiki Kaisha Toshiba
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