Optimierung von Pruefzyklen bei hochbelasteten Bergbau-Foerderseilen, insbesondere bei dreilagigen Flachlitzenseilen

In three-layered flattened wire ropes, which are common in mine haulage systems in coal mines, only part of the wires can be inspected by the visual method, so magnetic induction testing is employed as well. The project aimed at reducing inspection requirements without impairing the safety standard. Random sampling of flattened wire ropes have shown that this is possible, provided that fatigue and corrosion curves of the cable can be made comparable with the diagrams of magnetic induction tests. Monitoring of the strength reduction of these ropes must be possible throughout the whole rope life. The project focused on the following tasks: Assessment and description of the haulage systems and operating conditions (haulage equipment, mine climate, number of hoists per day, etc.); Inspection of the geometries of new and worn-out ropes and calculation of rupture forces and residual rupture forces; Modification of existing measuring and storage instruments, if possible in explosion-proof construction; Development of software for assessing the residual fracture force of haulage ropes.Available from TIB Hannover: RR 1344(142) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEMinisterium fuer Wirtschaft und Mittelstand, Technologie und Verkehr des Landes Nordrhein-Westfalen, Duesseldorf (Germany)DEGerman