본 실시예들은 랙구동형 동력 보조 조향장치에 관한 것으로, 본 실시예들은, 랙하우징의 내측에서 축방향으로 슬라이딩되며 외주면에 외주스크류홈이 형성되어 있는 랙바, 내주면에 랙바의 외주스크류홈에 대응되는 내주스크류홈을 구비하고, 내주면과 외주면 사이에는 축방향으로 관통된 볼순환로가 형성되어 있는 볼너트, 볼순환로와 외주스크류홈 및 내주스크류홈으로 볼이 순환되도록 볼반송홀이 구비되며 볼순환로의 일측과 타측에 결합되는 엔드캡, 엔드캡을 축방향으로 지지하면서 볼너트의 내주면에 결합되는 지지부재를 포함하는 랙구동형 동력 보조 조향장치를 제공한다.

    Embodiments of the present invention relate to a rack-driven electric power assisted steering device. Embodiments of the present invention provide a rack-driven electric power assisted steering device comprising: a rack bar which slides in the axial direction in a rack housing and has an outer circumferential screw groove formed at the outer circumferential surface thereof; a ball nut which has an inner circumferential screw groove formed at the inner circumferential surface thereof and corresponding to the outer circumferential screw groove of the rack bar, and has a ball circulation passage formed between the inner and outer circumferential surfaces thereof, the ball circulation passage passing through the ball nut in the axial direction; end caps coupled to one end and the other end of the ball circulation passage, respectively, each of the end caps having a ball return hole provided to circulate balls through the ball circulation passage, the outer circumferential screw groove, and the inner circumferential screw groove; and a support member coupled to the inner circumferential surface of the ball nut while supporting the end caps in the axial direction.


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    Title :

    Rack Assist Type Electric Power Steering Apparatus


    Additional title:

    랙구동형 동력 보조 조향장치


    Publication date :

    2024-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16H Getriebe , GEARING



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