Open AccessReliability and maintainability analysis of universal drill machine at Saoner mines, Nagpur, India
Author(s) -
Kumar Gaurav,
Anil K. Agrawal,
Somnath Chattopadhyaya,
Mohd Ahtesham Hussain Siddiqui
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/691/1/012014
Subject(s) - maintainability , coal mining , drill , reliability (semiconductor) , reliability engineering , engineering , downtime , mining engineering , computer science , coal , mechanical engineering , power (physics) , physics , quantum mechanics , waste management
Mining is the extraction of coal and minerals from the earth crust. Mining is mainly divided into two categories: opencast and underground mining. These mining activities are accomplished with the help of heavy engineering machine. The execution of these mining machines depends on machine reliability, operating environment, operating process and skill of the operator. In mining, a large number of heavy machinery are used and those are very costly. The failure of these machinery effects coal production. Therefore to overcomethese losses, reliability analysis is required. This paper represents a case study showing reliability and maintainability of universal drill machine (UDM) at Saoner mines, Nagpur, India. UDM is a crucial mechanism for the mining industry. The main work carried out by these machinesis drilling operation at a minimum time with higher accuracy resulting in the increased productivity. For survival in the intense competition and complicated environmental condition, it is necessary that UDM must be maintained effectively and efficiently. To check whether the collected data are independent and identically distributed(IID) or not, trend and serial correlation test are performed. To get the best fit distribution of data by K-S test, the easy-fit software is used. These distributions draw reliability as well as maintainability graph of the system. These graphs show that the machine is not working properly. To achieve high reliability of UDM, proper review of maintenance programme should be done.