Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1987-10-19
1989-05-16
Braun, Leslie A.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74804, F16H 1306, F16H 128
Patent
active
048298514
ABSTRACT:
Gearless differential speed reducer comprising a first disc secured to a casing, a second rotary disc arranged to face the first disc, sinuous grooves provided with the facing sides of discs, the sinuous shapes of which are epicycloid and hypocycloid curves determined along a certain pitch circle, spherical balls provided between the discs to position into the grooves, and an eccentric shaft connected to the rotary disc through a bearing. Rotational movement of the eccentric shaft allows the rotary disc to rotate around one end of the shaft, while going along the pitch circle, since the balls rolls along the sinuous grooves. A single rotation of the shaft permits the rotary disc to travel by the length equivalent to that of two lobes of the grooves, yielding speed reduction ratio as a formula of 2/N(N+2) when the groove of the first disc counts its number of lobes as N.
REFERENCES:
patent: 1862220 (1932-06-01), Johnson
patent: 4189961 (1980-02-01), Yamashita et al.
patent: 4537094 (1985-08-01), Bursa et al.
patent: 4542664 (1985-09-01), Sladek et al.
patent: 4552037 (1985-11-01), Distin, Jr. et al.
patent: 4554846 (1985-11-01), Distin, Jr. et al.
patent: 4563915 (1986-01-01), Tibbals, Jr.
patent: 4584904 (1986-04-01), Distin, Jr. et al.
Braun Leslie A.
Novais David
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