Switchable planetary gear type transmission mechanism for the starter transmission mechanism of automotive belt pulley assembly

摘要

The present invention , braking is a switchable planetary gear type transmission mechanism for a starter transmission mechanism of an automotive belt pulley assembly , the sun gear can be connected to a belt pulley for driving the vehicle accessory , the internal gear brake particular an inner gear that can , at least one of the planetary unit is connected to the inner gear and the sun gear , with a planetary arm supporting at least one of the planetary unit , the planetary unit comprises a planetary gear meshing with the sun gear and the internal gear , and corrects the backlash between the planet gears and the sun gear and / or the internal gear , and a relatively movable with respect to the planetary gear , and a tightening gear meshing with the sun gear and / or the internal gear , switching about the planetary gear type transmission mechanism possible. By tightening gear , backlash between the planet gears and the sun gear and / or the inner gear is afterwards possible removal . As a result, the transmission mechanism noise induced on the basis of the rotation unevenness of the starting torque introduced from the drive motor is avoidable , fewer belt pulley assemblies of noise generation can be realized .