Orbiting ring-gear planetary drive

Details Orbiting ring-gear planetary drive Orbiting ring-gear planetary drive

1986-07-31

1988-03-29

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74803, 74766, F16H 128, F16H 5710

Patent

active

047335793

ABSTRACT:
An ultra-compact planetary drive provides a high reduction ratio and high power transmission without sacrificing the transmission efficiency. The compactness and versatility of the present invention is achieved by using an orbiting ring gear instead of the orbiting spur gears traditionally employed in the construction of the conventional planetary gear drive. The planetary drive of the present invention may be constructed by using gears on friction rollers or combination of gears and friction rollers.

REFERENCES:
patent: 1009954 (1911-11-01), de Briones
patent: 2108384 (1938-02-01), Moisy
patent: 2667089 (1954-01-01), Gregory
patent: 2972910 (1961-02-01), Menge, Sr.
patent: 4189962 (1980-02-01), Chung
patent: 4379976 (1983-04-01), Pitchford et al.

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