Fixed ratio traction roller transmission

Details Fixed ratio traction roller transmission Fixed ratio traction roller transmission

1983-10-27

1985-08-27

Freeh, William L.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74751, F16H 1308

Patent

active

045370931

ABSTRACT:
A traction roller transmission having a number of traction rollers arranged in an annular space between, and in engagement with, a sun roller structure and a traction ring structure for the transmission of motion therebetween includes sun roller and traction ring structures at least one of which has two concentric sleeves provided with complementary conical surfaces arranged opposite, and spaced from, one another and a plurality of bearing balls disposed in the space between the sleeves with an axial cam structure arranged axially adjacent one of the sleeves and adapted to force this sleeve into tighter engagement with the outer sleeve when a torque is transmitted through the transmission, thereby radially expanding the sleeves causing firm engagement of the traction rollers with the sun roller and traction ring structures.

REFERENCES:
patent: 3490311 (1970-01-01), Okabe
patent: 3793907 (1974-02-01), Lakamura
patent: 4052915 (1977-10-01), Kraus
patent: 4215595 (1980-08-01), Kraus
patent: 4440043 (1984-04-01), Kraus
patent: 4454788 (1984-06-01), Kraus
patent: 4471667 (1984-09-01), Kraus

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