Reduction gear assembly

Details Reduction gear assembly Reduction gear assembly

1993-10-15

1996-03-12

Ta, Khoi Q.

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

475168, 475178, F16H 132

Patent

active

054982154

ABSTRACT:
A pin-ball type reduction gear comprising of a casing rotatably supporting an input shaft and an output shaft such that the input shaft is butted against the output shaft with an interval. A planetary disk eccentrically and rotatably supported by the input shaft. A wave-shaped epitrochoid curve groove, and balls in the number larger than that of the waves of the epitrochoid curve groove, which are provided between the casing and the planetary disk in such a manner as to be engaged with each other and a plurality of pins provided between planetary disk and the output shaft so as to be in parallel to the input shaft and the output shaft, and pin insertion holes each inserted with the pins. The pins and pin insertion holes in the same number are disposed along a circle of the planetary disk or output shaft around the axis of the planetary disk or output shaft and gaps allowing the eccentric motion of the planetary disk to the output shaft are each formed between the pin insertion holes and pins.

REFERENCES:
patent: 4177695 (1979-12-01), Grove
patent: 4440044 (1984-04-01), Heller
patent: 4829851 (1989-05-01), Imase
patent: 5167590 (1992-12-01), Kratochvil et al.
patent: 5197930 (1993-03-01), Imase

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