본 실시예들에 의한 전동식 동력 보조 조향장치는, 중공으로 형성되어 외주면이 모터풀리와 너트풀리를 연결하는 벨트에 지지되고 내주면이 테이퍼지게 형성되며, 내주면과 외주면을 절개하는 슬릿이 다수개 형성되는 풀리, 외주면이 테이퍼지게 형성되어 풀리의 내주면에 지지되는 지지부재, 지지부재를 관통하며 랙하우징에 결합되는 축부재, 지지부재를 가압하는 탄성부재를 포함하여, 조향 보조력을 손실없이 정확하게 전달할 수 있으며, 벨트가 모터풀리와 너트풀리에 지지되는 면적을 증가시켜 소음, 진동 및 벨트의 손상을 방지하고, 모터하우징과 랙하우징의 결합구조가 단순화되어 간편하게 조립할 수 있으며, 모터를 차종별 특성에 맞추어 구비할 필요없이 공용으로 사용할 수 있다.
According to the embodiments of the present invention, an electric power assisted steering apparatus comprises: a hollow pulley of which an outer circumferential surface is supported by a belt connecting a motor pulley to a nut pulley and an inner circumferential surface is tapered, and which has a large number of slits incising the inner circumferential surface and the outer circumferential surface; a support member of which an outer circumferential surface is tapered and which is supported by the inner circumferential surface of the pulley; a shaft member penetrating the support member to be engaged with a rack housing; and an elastic member pressurizing the support member. The electric power assisted steering apparatus is able to precisely transfer power to assist steering without any loss, to increase the area on which the belt is supported by the motor pulley and the nut pulley, to prevent noise, vibration, and damage to the belt, to simplify the engagement structure of the motor housing and the rack housing, to be conveniently assembled, and to be commonly used without the need to have a motor fitting the characteristics of each type of vehicle.
Electric Power Steering Apparatus
전동식 동력 보조 조향장치
2024-09-04
Patent
Electronic Resource
Korean
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