Traction roller transmission

Details Traction roller transmission Traction roller transmission

1987-11-02

1988-11-08

Braun, Leslie A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74772, 74206, 74212, F16H 1306, F16H 1310, F16H 1556, F16H 5710

Patent

active

047827238

ABSTRACT:
In a planetary type traction roller transmission which comprises a sun, a traction ring and planetary traction rollers disposed in the space between, and in engagement with, the traction ring and the central sun all with somewhat conical traction surfaces so arranged that the tangential axial lines of the traction surfaces intersect in a point on the transmission axis there are provided engaging means for forcing the appropriate traction surfaces into firm engagement with one another but also means for limiting the engagement forces applied to the traction surfaces to a predetermined safe limit which is not exceeded no matter how strong the applied forces are.

REFERENCES:
patent: 651410 (1900-06-01), Ball
patent: 1452770 (1923-04-01), Webb
patent: 1993051 (1935-03-01), Dell et al.
patent: 2306475 (1942-12-01), Wahl
patent: 3349642 (1967-10-01), Alsch
patent: 3375739 (1968-05-01), Nasvytis
patent: 3988950 (1976-11-01), Mori
patent: 4052915 (1977-10-01), Kraus
patent: 4060010 (1977-11-01), Heden
patent: 4078449 (1978-03-01), Kelly
patent: 4435998 (1984-03-01), Kinoshita
patent: 4481842 (1984-11-01), Nelson
patent: 4747324 (1988-05-01), Perry
Bearings and Rolling Traction, Analysis and Design, by Charles E. Kraus, Excelermatic Inc., Aug. 1987, Austin, Texas 78758.

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