Stepless speed change traction gear

Details Stepless speed change traction gear Stepless speed change traction gear

1989-07-20

1990-11-06

Diehl, Dwight

Planetary gear transmission systems or components

Planet pinion is friction gear

Variable speed ratio

74191, F16H 1550

Patent

active

049682903

ABSTRACT:
A stepless speed change traction gear includes a plurality of conical rollers, each having a conical surface frictionally engaging with an internal surface of a speed changing ring, a flat surface perpendicular to the axis of the conical surface frictionally engaging a non-rotating track ring, and an annular concave surface coaxial with the conical surface and frictionally engaging a bearing ring. The speed changing ring is longitudinally adjustable between limits so that a speed ratio range from 0 to nearly 1.0 is developed. This traction gear is not provided any additional gearing or speed increasing device to widen the speed range. A clutch, brake, and operator can permit a direct drive condition between the input and output shafts.

REFERENCES:
patent: 2836994 (1958-06-01), Weber
patent: 4232561 (1980-11-01), Kashihara et al.
patent: 4332542 (1982-06-01), Matsui
patent: 4643046 (1987-02-01), Kaneyuki
patent: 4730515 (1988-03-01), Kaneyuki
patent: 4738164 (1988-04-01), Kaneyuki
patent: 4751854 (1988-06-01), Sakai et al.

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