THEORETICAL ANALYSIS FOR THE OPTIMISATION OF THE BELT CONVEYOR TENSIONING STATION OF AN SRs 2000 EXCAVATOR

Abstract

ABSTRACT. In the present work, the rubber belt conveyor (RBC) of an SRs 2000 excavator is made on the basis of the main technical parameters influencing the dynamic performance of a conveyor belt for the transportation of opencast working in the conditions of “Maritsa-East Mines” Ltd. The analysis includes the most important parameters, such as: theoretical performance of the conveyor; power consumption of the electric motors (kW) at dénivеllation of the conveyor; starting torque (% Nmpl); running torque (kN); braking time (sec); braking torque (N-m); drift time (sec). When the belt conveyor is dénivellated, a number of changes occur in the main technical parameters which directly affect: yield; tension drum stroke; conveyor belt braking time; power required to drive the conveyor belt; weight required to tension the belt, etc. Downloading and reading of the basic technical parameters is necessary to determine the required tensioning force applied to the tensioning drum of the RBC. On the basis of these indicators, various conceptual variants have been developed of tensioning stations for integration to the RBC of the SRs 2000 excavator operating in the conditions of “Maritsa-East Mines” EAD