Friction stepless speed change device

Details Friction stepless speed change device Friction stepless speed change device

1990-06-27

1991-09-03

Herrmann, Allan D.

Planetary gear transmission systems or components

Nonplanetary variable speed or direction transmission...

Nonplanetary transmission is friction gearing

F16H 3700

Patent

active

050450379

ABSTRACT:
A friction stepless speed change device includes an input shaft, a driven shaft and an output shaft arranged on a common axis, and a countershaft rotatably provided in parallel with the common axis. The device further includes tow rockable arms rockable about the countershaft, a cylindrical driving rotary assembly rotatably provided on free ends of the rockable arms to enclose the driven shaft, a set of driving friction discs rotating together with the driving rotary assembly, and a set of driven friction discs rotating together with the driven shaft. The countershaft includes a first gear in mesh with a gear fixed to the input shaft, a second gear in mesh with a gear fixed to the driving rotary assembly, and a third gear in mesh with a sun gear of a planetary gear provided on the driven shaft. The output shaft is integrally formed with an internal gear in mesh with planet gears of the planetary gear.

REFERENCES:
patent: 1963599 (1934-06-01), Tscherne
patent: 2583496 (1952-01-01), Rougelot

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