Results 21 to 30 of about 186 (143)

Method of Restoring Mine Hoisting Machine Brake Unit Lever Transmission Bushing [PDF]

MATEC Web of Conferences, 2018
In the article results of researches of brake devices of lifting machines UD of joint-stock company "ArcelorMittal Temirtau" are resulted. Defects were revealed as a result of the examination. A method and device for the unconditional control of defects and technical condition of the hinged joints of brake devices is developed in terms of the gap size ...
Ibatov, Marat, Mekhtiyev, Ali, Bulatbayev, Felix, Yakupova, Oxana   +3 more
core   +6 more sources

Development of a model of contact shoe brake-drum interaction in the context of a mine hoisting machine [PDF]

Mining of Mineral Deposits, 2017
The studies have been carried out within the framework of thesis for a Degree of Candidate of Technical Sciences without any financial support.
Zabolotnyi, K, Zhupiiev, O, Molodchenko, A   +2 more
openaire   +5 more sources

Strengthening elements of steel structures for controlling fatigue fracture

Metalurgija, 2021
The article deals with the issues of reliable operation of steel structures of mine hoisting machines. It is proposed to strengthen the “weak points” of the braking device beam structure, which will further prevent the formation and growth of cracks in ...
P. A. Kropachev, A. D. Mekhtiyev, Y. Zh. Sarsikeyev   +2 more
doaj   +1 more source

Method for calculating a two-drum mine winder

Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
In the Republic of Belarus, on the base of JSC “Soligorsk Institute for Resources Saving Problems with Pilot Production”, the development and launch of import-substituting mass production of large-capacity double-drum mine winders with an increased ...
V. Ya. Prushak, A. P. Dvornik
doaj   +3 more sources

The Evaluation of the Effect of Power Circuit Configuration Changes on the Level of Harmonics Generated by the Hoisting Machine Drive System

Energies
The quality of electrical energy in mining plants is still a topic that is not directly linked to occupational safety and the efficiency of the mining process.
Tomasz Siostrzonek, Zbigniew Mikoś
doaj   +2 more sources

Improving the method of controlling the stress-strain state of steel structures of electromechanical systems

Metalurgija, 2023
The article presents the results of improving the method of controlling the stress-strain state of steel structures of mine hoisting machines, which can be attributed to electromechanical systems.
A. B. Zhantlessova, S. K. Zhumazhanov, T. B. Akimzhanov, Y. Zh. Sarsikeyev, B. B. Issabekova, Zh. B. Issabekov, A. D. Mekhtiyev, A. D. Alkina   +7 more
doaj   +1 more source

Using optical fibers (OF) to control the stress-strain state of steel structures subject to fatigue failure

Metalurgija, 2022
The article presents the results related to developing and practical testing the method of monitoring the stress strain state of steel structures of mine hoisting machines.
V. V. Yugay, A. D. Mekhtiyev, G. S. Ozhigin, R. Zh. Aimagambetova, Y. G. Neshina, Y. Zh. Sarsikeyev   +5 more
doaj   +1 more source

Modeling of induction motor drive of a mine hoist on the basis of a doubly-fed electric machine [PDF]

E3S Web of Conferences, 2021
One of the options for the modernization of existing hoist electric drives with a wound-rotor induction motor is its starting according to the scheme of a doubly-fed machine. For this purpose, a frequency converter with an adjustable amplitude, frequency and phase shift of the voltage at its output is connected to the motor rotor. At the same time, the
Ostrovlyanchik Viktor, Popolzin Ivan, Kubarev Vasiliy, Qi Dabin   +3 more
openaire   +2 more sources

Inspection Method of Rope Arrangement in the Ultra-Deep Mine Hoist Based on Optical Projection and Machine Vision [PDF]

Sensors, 2021
Due to the importance of safety detection of the drum’s rope arrangement in the ultra-deep mine hoist and the current situation whereby the speed, accuracy and robustness of rope routing detection are not up to the requirements, a novel machine-vision-detection method based on the projection of the drum’s edge is designed in this paper.
Lixiang Shi, Jianping Tan, Shaohua Xue, Jiwei Deng   +3 more
openaire   +3 more sources

A Fault Diagnosis Method of Mine Hoist Disc Brake System Based on Machine Learning [PDF]

Applied Sciences, 2020
The performance of the brake system is directly related to the safety and reliability of the mine hoist operation. Mining the useful fault information in the operation of a mine hoist brake system, analyzing the abnormal parts and causes of the equipment, and making accurate early prediction and diagnosis of hidden faults are of great significance to ...
Juanli Li, Shuo Jiang, Menghui Li, Jiacheng Xie   +3 more
openaire   +2 more sources