Variable speed belt drive

Details Variable speed belt drive Variable speed belt drive

1980-09-26

1984-01-10

Dorner, Kenneth

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Fluid pressure actuator for adjustment of member

474 19, F16H 5556

Patent

active

044251025

ABSTRACT:
A variable speed belt drive having a sheave with an axially moveable flange connected to the drive shaft by a flexible element which performs the function of transmitting the torque from the shaft to the axially moveable flange, and which defines a fluid pressure chamber for applying a variable pressure to the moveable flange for moving the flange axially on the shaft as the pressure in the chamber is varied by the operation of a control device. The fixed flange of the same sheave is mounted on a hub and bushing of a flexible coupling connecting the sheave to a drive motor. A belt connects the first sheave to a second variable pitch sheave which is responsive to the load on the drive for maintaining the pitch of the sheave in any preselected position.

REFERENCES:
patent: 3888093 (1975-06-01), Downey
patent: 4027358 (1977-06-01), Llach et al.
patent: 4216678 (1980-08-01), Butterfield et al.

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