Abstract
Along with the development of lifting devices, the new hybrid load-carrying cables were introduced to the market. The solutions of this type covered both, steel ropes of circular section and belts being a hybrid combination of many steel ropes potted with plastic coating into a single flat friction belt. Such design of ropes as compared to the traditional round steel ropes enabled to reduce the drive wheel diameter while maintaining frictional contact conditions and required ratio of the drive wheel and load-carrying cable diameters that is at least 40. Despite the above-mentioned advantages, a research issue that is of interest but so far has not been fully investigated is the process of wear of the hybrid load-carrying cables and evaluation of the technical condition of ropes being the load-carrying elements in the applied solutions, especially during the long-term operation. This article presents the possibilities of applying the magnetic method for evaluation of the technical condition of steel ropes being the load-carrying element of hybrid belts. The authors have presented their solution of the measuring head for magnetic testing of the load-carrying hybrid cables, elaborated by the team of employees of the Department of Machine Engineering and Transport at University of Science and Technology in Cracow, that enables the quantitative assessment of the hybrid load-carrying cable wear.
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