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

Han, Dong Seop (동아대학교 기계공학과)
Ha, Jeong Min (동아대학교 기계공학과 대학원)
Han, Geun Jo (동아대학교 기계공학과)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.9, no.1, 2010 , pp. 35-41 More about this Journal
Abstract
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.
Keywords
Movable crane; Overload Limiter; Large-angle; Load cell; Overturning Moment;
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  • Reference
1 KOSHA: Prevention Guide of Safety Accident for a Movable Crane(2005).
2 Lee, M. J., Han D. S., Lee, S. W. and Han, G. J., "Analysis of Reaction Force of JIB Crane for Shipment According to Luffing Angle", Journal of the KSPE Spring Conference, Vol. 7, No. 1, p. 523-524, 2007
3 Lee, S. R. "Development of a Hydraulic Loading System Real-Time Simulator Using a PC and I/O Interface board", Journal of the KSME Spring Conference, Vol. 20, No. 1, p. 426-432, 2000
4 Timoshenko, S. P. and Gere, J. M.: "Theory of Elastic Stability", McGraw-Hill, 1961.
5 Ugural, A. C., "Stresses in plates and shells", McGraw-Hill, 1981.
6 Hoffman, J., "Numerical methods for engineers", McGraw-Hill, 1992.