Steering apparatus for changing steering angle of front wheels of motor vehicle, has sun gear that is connected as output element to epicyclic gear and epicyclic gear with sun gear, which is arranged between motor and ball screw nut

摘要

The steering apparatus has a planet carrier (32) that is connected as a driving element to an epicyclic gear (18) with a motor element in a rotating state. A sun gear (36) is connected as an output element to the epicyclic gear with a ball screw element. A motor (20) actuates a ball screw nut (16). The epicyclic gear with a sun gear is arranged between the motor and the ball screw nut. A planet gear (34) is arranged on the planet carrier between the sun gear and a ring gear (38). A ball screw drive (14) is provided with a ball screw (12) and the ball screw nut.