파워스티어링용 유압펌프의 일체형 풀리 개발 (Development of Monolith Type Driving Pulley of Power Steering Hydraulic Pump)

서지정보

· 발행기관 : 사단법인 유공압건설기계학회
· 수록지 정보 : 드라이브·컨트롤 / 7권 / 4호 / 9 ~ 14페이지
· 저자명 : 이춘태

초록

본 연구에서는 일체형 구동풀리의 제작공정 변경에 따른 구동풀리의 압출하중(extracting force)에 대한 안전성을 검토하기 위하여 유한요소 해석방법을 사용하였다. 또한, 실험을 통하여 해석결과의 타당성을 검토하였고, 진동내구시험을 실시하여 일체형 풀리의 진동내구성능을 검증하였다.

영어초록

Most power steering systems work by using a hydraulic system to turn the vehicle's wheels. The pressure is usually provided by a hydraulic pump driven by the vehicle's engine. A double-acting hydraulic cylinder applies a force to the steering gear, which in turn applies a torque to the steering axis of the road wheels. The flow to the cylinder is controlled by valves operated by the steering wheel ; the more torque the driver applies to the steering wheel and the shaft it is attached to, the more fluid the valves allow through to the cylinder, and so the more force is applied to steer the wheels in the appropriate direction. Since the pumps employed are of the positive displacement type, the flow rate they deliver is directly proportional to the speed of the engine. And for a long time, the type of hydraulic pump pulley was boss welding type. But recently, monolith type driving pulley is widely used. Therefore in this paper we studied the safety of monolith type driving pulley to the extracting force and endurance by FEM analysis and experiments

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