Two-speed gearbox

Details Two-speed gearbox Two-speed gearbox

1995-03-21

1996-12-31

Wright, Dirk

Planetary gear transmission systems or components

With means to vary drive ratio or disconnect drive

Gear shiftable axially to disconnect or vary ratio

F16H 344

Patent

active

055889301

ABSTRACT:
A two-speed gearbox, having an input shaft which is connected to a spline shaft, when the gearbox is in direct drive, a front part of the spline shaft is in engagement with a shaft coupler which drives an output shaft to transmit a 1:1 ratio; when the gearbox is geared down, the spline shaft is moved such that its front part is separated from the shaft coupler and engaged with a sun gear of the planetary gear train within a housing which makes the internal splines of a frame of the planetary gear engage with external splines of the shaft coupler. Power is transmitted from the spline shaft, through the speed reduction of the sun and planetary gear train and to the planetary gear frame, and then is transmitted to the shaft coupler and sent out through the output shaft.

REFERENCES:
patent: 1777997 (1930-10-01), Wise
patent: 2464890 (1949-03-01), Premo
patent: 2968189 (1961-01-01), Walko
patent: 2985037 (1961-05-01), Schoenle et al.
patent: 4932281 (1990-06-01), Ordo
patent: 4995861 (1991-02-01), Erlbruch

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