DRIVE PULLEY OF VARIATOR Russian patent published in 2016 - IPC F16H9/18 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, namely to devices intended to control speed of rotation of shafts, for example variators of vehicles. Drive pulley of variator comprises a shaft containing two semi-pulleys one of which is movable in axial direction, and a stop comprising four pairs of projections. In each pair a roller is installed between projections, and in the movable semi-pulley there are four hinged centrifugal weights contacting with rollers. Drive pulley is equipped with inserts, stop projection pairs are arranged crosswise, the movable semi-pulley in two opposite sectors between weights there are grooves and on the stop there are additional projections which are arranged in said grooves. Inserts are installed in additional projections of the stop and are made from friction material with friction coefficient from 0.74 to 0.89.

EFFECT: improved operational characteristics of variator.

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