Speed reduction device

Details Speed reduction device Speed reduction device

1994-01-10

1995-11-28

Ta, Kholo

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

475177, 464103, F16H 128

Patent

active

054702836

ABSTRACT:
A speed reduction device employing a housing with rotatably mounted input and output shafts. The input shaft includes an eccentric shaft upon which is rotatably mounted a gear wheel. The gear wheel meshes with a ring gear fixed to the housing. The gear wheel has close but not equal to the same number of teeth as the ring gear. A dynamic coupling is provided between the gear wheel and the output shaft. The dynamic coupling includes circular cavities on opposed surfaces on the gear wheel and output shaft, respectively, with balls located between surfaces in the cavities. One set of cavities is enlarged to accommodate the eccentric motion of the gear wheel.

REFERENCES:
patent: 606158 (1898-06-01), Belanger
patent: 3043164 (1962-07-01), Sundt
patent: 4177695 (1979-12-01), Grove
patent: 5030184 (1991-07-01), Rennerfelt
patent: 5232412 (1993-08-01), Zheng et al.

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