ANALYSIS OF THE DURABILITY OF ROTATING CONVEYOR UNITS AND WAYS TO INCREASE ITS SERVICE LIFE

The purpose of the work is to analyse various methods of calculation of the durability of the roller life of belt conveyor rollers and to select the best methodology for determining the real life of the roller. The calculated life of the roller is often very different from the real life, so determining the real life of the roller is an important task. The calculation of the roller is carried out on the most frequently failing unit in the product – bearing unit. The calculation of bearing unit durability according to ISO 281:1990 and the methodology proposed by bearing manufacturer SKF has been analysed. The conducted analysis of calculation methods and literature in this area showed that modern bearings meet high standards and rarely fail, the main causes of failure are external conditions, such as high humidity, dust, etc. The main causes of failure are external conditions. I.e. it is desirable to use calculation methods that take into account the protection of the bearing unit. It is known that monotonous, uniform operation of the product without peak critical loads is impossible and this is also reflected in the calculations of modern bearings. The result of the analysis was the calculation of the belt conveyor roller of a new design, which implies an increase in the service life of the product. The area of application of the results obtained by the authors is the improvement of the methodology for determining the life of bearings and determining the service life of belt conveyor rollers working in difficult operating conditions. The results of this work can be used in the study of various belt and roller conveyors to improve the reliability and durability of its components.