Worm shaft support damper for motor driven power steering

전동식 파워스티어링 장치의 웜샤프트 지지댐퍼

Abstract

본 발명은 별도의 조정작업이 요구되지 않으면서도, 웜샤프트를 웜휠에 적합한 상태로 눌러주어, 웜샤프트로부터 웜휠로의 동력전달이 항상 원활하게 이루어질 수 있도록 보장함과 아울러, 웜휠로부터 역으로 입력되는 하중에 의해서 웜샤프트가 상하로 진동하게 되는 것을 다단으로 억제 및 댐핑하여 웜샤프트의 상하방향 흔들림에 의한 래틀 소음의 발생을 효과적으로 방지할 수 있도록 한다. 완충, 우레탄, 댐핑, 웜샤프트
PURPOSE: A worm-shaft supporting damper for a motor-driven power steering device is provided to make power transfer smooth by pressing a worm shaft to be suitable for a worm wheel and prevent rattle noise due to the vertical vibration of the worm shaft by limiting and damping the vertical vibration of the worm shaft in multi stages. CONSTITUTION: A worm-shaft supporting damper for a motor-driven power steering device comprises a case ring(5), a leaf spring and an elastic member(9). The case ring surrounds the outer part of a bearing and opens a part of entire circumferential surface. The bearing supports the end of a worm shaft. The leaf spring connects both opened ends of the case ring. The elastic member protects the case ring and the leaf spring. The leaf spring makes contact with both ends of the case ring at the outer part of the case ring. The elastic member has a shape of a ring, which protects the case ring and the leaf spring. The part protecting the leaf spring is protruded to the outer part of a radial direction to form a damping unit(11).

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Cited By (5)

    Publication numberPublication dateAssigneeTitle
    CN-104326014-AFebruary 04, 2015北汽福田汽车股份有限公司转向器及具有该转向器的车辆
    CN-104326014-BSeptember 07, 2016北汽福田汽车股份有限公司转向器及具有该转向器的车辆
    KR-101423949-B1August 01, 2014한국델파이주식회사전동식 파워 스티어링 장치
    KR-101442765-B1September 25, 2014한국델파이주식회사Electric power steering apparatus
    KR-101650743-B1August 25, 2016주식회사 디엠씨Electric steering damping bush