High ratio planetary type traction roller transmission

Details High ratio planetary type traction roller transmission High ratio planetary type traction roller transmission

1990-03-05

1991-06-25

Herrmann, Allan D.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

74209, 475183, 475197, F16H 1302, F16H 1300

Patent

active

050256718

ABSTRACT:
In a traction roller transmission which has disposed in a housing two planetary type transmission structures each having traction rollers disposed between spaced concentric sun rollers and traction rings and supported by support members of which one which is associated with one of the transmission structures carries the sun of the other transmission structure and the other is connected to the transmission output shaft while the input shaft carries the sun of the one transmission structure (the planetary rollers are supported in an inclined position), and the traction rings are axially curved and forced toward one another so as to engage therebetween the planetary rollers which are supported at predetermined angles selected such that their engagement forces with the sun rollers and traction rings correspond to the torque to which they are subjected during operation.

REFERENCES:
patent: 1737997 (1929-12-01), Garrard
patent: 2680388 (1954-06-01), Lazarowicz
patent: 4052915 (1977-10-01), Kraus
patent: 4060010 (1977-11-01), Heden
patent: 4846008 (1989-07-01), Kraus

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