Vol.8, No3, 2008, pp. 159-164
 UDC 620.17:621.867.2

POSSIBILITY OF LIFE ASSESSING THE SPEED REDUCER FOR BELT CONVEYOR DRIVE BY APPLYING TENSOMETRIC MEASUREMENTS

Miodrag Arsić, Aleksandar Veljović 1

Marko Rakin 2

Zoran Radaković 3

1 Institute for Materials Testing IMS, Belgrade

2 Faculty of Technology and Metallurgy, University of Belgrade

3 Faculty of Mechanical Engineering, University of Belgrade

Abstract

The load carrying structure of belt conveyors, a system with excessive elastic properties of its parts, is subjected to complex loads of dynamic character. Assessment of state of the drive and conveyor structure is possible only based on certain investigations in operating conditions. This paper presents results of tensometric measurements of deformations for various load regimes on belt conveyor drive drum shaft. Thereupon, on the basis of the obtained stress-time dependence, the functions of stress distribution and corresponding loading spectra are defined that enable a quantitative estimation of structural component behaviour in the range of material fatigue strength. Also, it is shown how results of the measurements may be used for evaluating the lifespan of driving speed reducer elements.

Keywords: belt conveyor, measuring equipment, stress state, load spectrum

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