Vol.10, No1, 2010, pp.53-59
UDC  620.17:669  539.4.012

STRUCTURAL DIAGNOSTICS AND BEHAVIOUR OF BUCKET WHEEL EXCAVATOR

Darko Daničić1, Taško Maneski2, Dragan Ignjatović3

1) Kolubara Metal, Vreoci, Serbia

2) University of Belgrade, Faculty of Mechanical Engineering

3) University of Belgrade, Faculty of Mining and Geology

Abstract

Surface mines in Serbia are the basis of coal production, justifying to focus the activities on continuous operation and maintenance of machinery and equipment for surface mining. Structural complexity of bucket wheel excavators and other mining machinery (spreaders, belt wagons), their high prices and high costs of failures and maintenance indicate the need to research and develop an efficient diagnostics system.

The article defines the methods and development of the model of an integrated system for state diagnostics and behaviour of mining machine steel structures, enabling to decide on further actions for their operation (state monitoring, to continue operation without intervention, retrofit, updating, redesign or amortisation).

The result of this research is a system of procedures and their mutual relations with the aim to obtain data on defining the mining equipment state and mode of further treatment.

Keywords: diagnostics, maintenance, bucket wheel excavator, steel structures, fatigue

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