이동식크레인의 과부하방지장치용 광각도 핀형 로드셀의 창의적 설계

Creative Design of Large-Angle Pin Type Load Cell for the Overload Limiter of a Movable Crane

  • 한동섭 (동아대학교 기계공학과) ;
  • 하정민 (동아대학교 기계공학과 대학원) ;
  • 한근조 (동아대학교 기계공학과)
  • 투고 : 2009.12.11
  • 심사 : 2010.01.05
  • 발행 : 2010.02.28

초록

An overload limiter is used to prevent its overturning accident during an operation of a movable crane. Recently the indirect measuring method, which measures hoisting load and overturning moment of overload limiter, demands instead of the existing method, which measures only hoisting load. The indirectly measuring method is how to conduct the hoisting load and overturning moment as measuring the load of hydraulic cylinder for a luffing driving of boom. So we need to develop the multi-angular pin type load cell with the measuring angle of ${\pm}10$ degree instead of the existing load cell with the measuring angle of ${\pm}2$ degree. In this study the finite element analysis is conducted to evaluate the effect of the aspect ratio of measuring cross section on the measuring limit of the load cell to develop the many-angular pin type load cell. For this investigation, the aspect ratio of measuring cross section and load applying angle were adopted as design parameters and the stresses of measuring part were evaluated for each parameter.

키워드

참고문헌

  1. KOSHA: Prevention Guide of Safety Accident for a Movable Crane(2005).
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