Results 121 to 130 of about 186 (143)

Justification of the algorithm for selecting parameters of composite linings for drums of mine hoisting machines

Collection of Research Papers of the National Mining University, 2023
Purpose. To perform an analysis of the stress-strain state in cylindrical drums of mine hoisting machines. To study the impact of the stiffness parameters of the elastic lining, made of composite material, and the drum's flange on the stress distribution in its shell.
K Zabolotnyi, O Panchenko, V Kukhar, O Zhupiiev, M Polushyna, T Moskalova, O Antsiferov   +6 more
openaire   +3 more sources

Technology of manufacturing composite phenol-nylon lining of drums of mine hoisting machines

Collection of Research Papers of the National Mining University, 2023
Objective. The development of an industrial technology for the production of phenolic caprolactam for lining the drums of mine hoisting machines, followed by testing of the material in industrial conditions. Methodology. A comprehensive approach that included several stages.
K Zabolotny, V Kukhar, O Panchenko
openaire   +3 more sources

Some technical characteristics of shaft hoist machines installed in the shafts of Macedonian lead and zinc mines [PDF]

, 2012
The shafts hoisting plants that are installed in the shafts of Macedonian lead and zinc mines have tremendous importance for past work of the mines and represent a crucial link between underground production system and mineral processing plants. From their further operation depends on achieving the planned production capacity and profitability of the ...
Despodov, Zoran, Panov, Zoran, Doneva, Blagica   +2 more
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Study of Safety Monitoring System for Mine Hoisting Machine Brake Shoe

2010 International Conference on E-Product E-Service and E-Entertainment, 2010
This paper presents the construction scheme of brake shoe clearance security real-time monitoring system, the system take mine hoist brake shoe clearance for the monitoring object, with the support of microcontroller AT89C52 and VB6.0, combining the techniques of SQL Server， Man-machine interface design and other technical, it fulfills the signal ...
Hongbing Qiao, Bin Gong, Xiuping Cai, Haitao Zhang   +3 more
openaire   +1 more source

Fault Detection and Diagnosis of Mine Hoist Machine Based on RS and SVM

2016 International Symposium on Computer, Consumer and Control (IS3C), 2016
A fault diagnosis method is proposed for the mine hoist machine fault diversity and redundancy of fault data based on Rough Sets (RS) and Support Vector Machine (SVM). RS theory is used to analyze the stator current fault data of mine hoist machine in order to exclude uncertain, duplicate information.
Xianmin Ma, Xing Zhang, Zhanshe Yang
openaire   +1 more source

Research on load identification of mine hoist based on improved support vector machine

Transactions of the Canadian Society for Mechanical Engineering, 2018
To solve the problem of indirect identification of dynamic load of a mine hoist, a novel identification method based on running speed is proposed. In this paper, the simulation model with variable frequency speed regulation by vector control was established in Matlab/Simulink.
Fang Ren, An-Qi Shi, Zhao-Jian Yang
openaire   +1 more source

Fault Diagnosis of Mine Hoist Braking System Based on Wavelet Packet and Support Vector Machine

2006 IEEE International Conference on Systems, Man and Cybernetics, 2006
This paper concerns mine hoist braking system fault diagnosis with the combination of wavelet packet and support vector machine. It is motivated by the scarce of fault samples in mine hoist such requiring very high security system. A novel approach is presented in order to diagnose blockage piston in cylinder, a typical fault of mine hoist braking ...
Xiao-hui Guo, Xiaoping Ma, Zhao Xu
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Research on load monitoring technology of mine hoist based on machine vision

Measurement Science and Technology
Abstract A hoist load monitoring method based on machine vision technology is proposed in this paper to address the frequent overloading accidents of mine hoists and the low safety and reliability of existing contact load monitoring technologies. The depth image of the skip undergoes time domain and spatial bilateral filtering algorithms
Zuzhi Tian, Zezheng Wang, Yangyang Guo, Huijun Chen, Minjian Zhu   +4 more
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Optimization of contact stresses in shoe brakes of mine hoisting machines

Collection of Research Papers of the National Mining University
Purpose. The research aims to develop recommendations for reducing the maximum contact stresses between the brake lining and the mine hoisting machine drum. Methods. Existing methodologies for calculating shoe brakes of mine hoisting machines often use a hypothesis that assumes absolute stiffness of the brake rim and beam.
K Zabolotnyi, A Burkov, O Panchenko, O Zhupiiev, V Symonenko   +4 more
openaire   +1 more source

The use of multi-pulse systems in the power supply of hoisting machine drives to improve voltage parameters in mining plants

2020 12th International Conference and Exhibition on Electrical Power Quality and Utilisation- (EPQU), 2020
Hoisting machines are among the largest loads in mining power networks. Due to frequent start-ups and stoppages, there are the source of numerous disturbances in the power network of a mining plant, such as: higher harmonics or voltage fluctuations.
Tomasz Siostrzonek, Krzysztof Chmielowiec, Krzysztof Piatek, Mateusz Dutka, Andrzej Firlit   +4 more
openaire   +1 more source