유압브레이커용 그리스 자동주입장치의 수명평가에 대한 연구

다국어 초록 (Multilingual Abstract)

In this study, the automatic grease injector is used to inject the grease in the operation of the hydraulic breaker. In this case, the study of the life time of the device and the main failure mode is required in the related industry and the life evaluation is studied. The main failure mode spool wear and valve area leakage have been confirmed. And the life test result confirmed the guaranteed life time B10 324,292 cycle.
Hydraulic breaker is an attachment mounted on excavator which is a construction machine. It supplies pressure and flow rate generated from engine and H.P.U of excavator and moves the piston up and down to strike the Tool(Chisel) and crush the workpiece. At this time, grease is periodically supplied to the Tool(Chisel) and the bushing to make the hydraulic breaker work smoothly. The physical data conditions of the actual vehicle conditions such as the operating pressure and the flow rate of the hydraulic breaker were analyzed, and the grease injecting device was reproduced and the life test was conducted. and we have developed AGP(Auto Grease Pump) life test equipment.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 그리스 주입장치 소개
• 3. 시험방법 및 장치
• 4. 수명시험결과
• 5. 결론
• 참고문헌