RELIABILITY OF A BELT CONVEYOR FLIGHT WITH SIMULTANEOUS REPAIR OF FAILED IDLERS

Assessment of mining equipment reliability is an interesting and relevant task.Its accomplishment makes it possible to increase profitability and efficiency of technological machinery utilization.To exemplify this, the authors discuss a belt conveyor, which availability is determined by the reliability of its idlers.The article discusses an approach with simultaneous repair of the failed idlers.The Kolmogorov equations were chosen as the mathematical tool.Taking a conveyor with the n-number of independently operating idlers as a condition, the authors have defined the following indices: the probability of serviceable operation of any k-number of idlers; the mathematical expectation of the number of properly operating idlers; the probability of failure of not more than i-number of idlers.Use of these indicators can minimize the operating costs of mining machines, identify weaknesses in the machine design that lead to frequent and prolonged downtime as well as develop measures to improve the design of machines to further improve the efficiency of technological equipment.