"Fundamental Problems…". Vol.III
PHYSICOMECHANICAL, THERMOPHYSICAL, AND AERODYNAMIC PROCESSES, SPECIFIC FOR WORKING ORGANS -ROCK INTERACTION.
DEVELOPMENT OF MINING AND CONSTRUCTION GEOTECHNOLOGIES
UDC 681.3 + 622.531 THE BASIC DESIGN SCHEME FOR AN AUTONOMOUS MOBILE ROVER «UNDERGROUND ROCKET»
Oparin V. N., Danilov B. B., and Smolyanitsky B. N.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: Argumentative proposals are given on possible configurations of an «underground rocket» and its pilot version, applicable for verification of design solutions.
UDC 621.879.0.32.004.69 (035)
THE LUMPY ROCK EFFECT ON MECHANICAL LOAD OF EXCAVATORS
Panachev I. A. and Nasonov M.Yu.
Kuzbass State Technical University, Kemerovo, Russia
ABSTRACT: Research data on interaction between lumpy rock and the working organ of excavators are reported. Parameters of the excavator load, resulted from the said interaction are found.
UDC 622.271.4 INVESTIGATION INTO STRESS-STRAIN STATE OF METALLIC COMPONENTS OF EXCAVATOR ESH 10/70 Panachev I. A., Nasonov M.Yu., and Putyanin A. N.
Kuzbass State Technical University, Kemerovo, Russia
ABSTRACT: Research data on stress-strain state of metallic components of excavator ESh 10/70 are obtained. The most probable zones of fatigue failure of metallic components are identified.
UDC 621.833.3.018 EVALUATION OF ANTI-FRICTION PROPERTIES OF TRANSMISSION OILS FOR SPIROID GEAR
Anferov V. N., Tkachuk A. P., Galayuda I. V., and Korneyev Yu.V.
Siberian Transport University, Novosibirsk, Russia
ABSTRACT: Applicability of the physical modeling process to evaluate antifriction properties of transmission oils for a spiroid gear is justified. The principal design of the disc-roller stand and the test procedure used are described.
UDC 621.01/.03 EXPERIENCE OF MECHANICAL ENGINEERING RESEARCH INSTITUTE IN DEVELOPMENT OF MINING AND HYDROTECHNICAL CONSTRUCTION MACHINERY
Dzhumataev M. S.
Mechanical Engineering Research Institute, National Academy of Sciences, Bishkek, Kyrgyz Republic
ABSTRACT: The author gives an account on the experience of Mechanical Engineering Research Institute in development of advanced machinery for mining industry, hydrotecnical and civil construction industries.
UDC 622.23 (083.9)
PROCESS FOR BLAST-FREE ROADHEADING IN HARD ROCKS AND ITS SPECIFICATION
Beskalov E. B., Absamatov E. N., Beskalov I. E., and Garipov F. R.
Mechanical Engineering Research Institute, National Academy of Sciences, Bishkek, Kyrgyz Republic
ABSTRACT: The authors lay out advantages and perspectives of the blast-free process as compared to the drill-and-fire process.
UDC № 622.23 (083.9)
COMPLEX PROCESS FOR RESOURCE-SAVING TUNNELING IN HARD ROCKS AND ITS SPECIFICATION
Beskalov E. B., Absamatov E. N., Beskalov I. E., and Garipov F. R.
Mechanical Engineering Research Institute, National Academy of Sciences, Bishkek, Kyrgyz Republic
ABSTRACT: The complex process under consideration expands the scope of application of the resource-saving, ecologically-safe, blast-free technology for hard and very hard monolithic rocks.
UDC 621.01 MODERN TRENDS IN DEVELOPMENT OF MINING AND CONSTRUCTION MACHINERY
Bakirov B. B. and Alikeyev S. S.
Engineering Academy of the Kyrgyz Republic, Bishkek, Kyrgyz Republic
ABSTRACT: The analysis of performance characteristics of the present-day machinery makes it possible to conclude that the critical operation parameters have been gained in view of the acting environmental-health regulations and material-strength restrictions. New machines and percussion mechanisms designed on the basis of the mechanisms of variable structure at Engineering Academy of the Kyrgyz Republic provide the promising test results. They really differ from the well-known machinery, as they are easy in manufacture and exhibit high reliability in operation. The specifications of the new machines allow that they can be efficiently employed to puddle and compact soil in mining and construction industries.
UDC 621.33 EXPERIMENTAL RESEARCH ON SLIDING ELECTRICAL CONTACT CHARACTERISTICS
UNDER DIFFERENT LUBRICATION AND DAMPING
Zhonghua Chen, Bin Li, Fengyi Guo, Zhiyong Wang,
Yitao Liu*, Yiming Xue**, Fei Yin, Qian Sun
Liaoning Technical University, Huludao, P. R. China
* Huludao Power Supply Company, Huludao, P. R. China
** Beijing Jiaotong University, Beijing, P. R. China
ABSTRACT: In order to study the sliding electrical contact characteristics of electric locomotive frictional pair, the experimental researches were carried out under different lubrication and damping. The frictional pair consists of copper based powder metallurgy pantograph slide and copper alloy contact wire. The relationships were analyzed between wear characteristic and contact pressure, sliding velocity and contact current. The results show that the wear rate of pantograph slide decreases with the increasing sliding velocity, increases with increasing current, firstly decreases and then increases with increasing pressure. There is an optimal contact pressure which the wear rate is minimal. The wear rate is the highest without lubrication and damping, the wear rate with lubrication and without damping is the similar to that with lubrication and damping, the last one is the lowest and the current-carrying stability is the best. Through microanalysis with SEM and wear mechanism, the results demonstrate that the most effective anti-friction measures include decreasing the friction coefficient, increasing the normal damping and reducing the vibration amplitude caused by friction.
UDC 621.23.05 PROCESS AND EQUIPMENT KITS FOR TRENCHLESS PIPELINE REPLACEMENT
Grigorashchenko V. A.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: The presented processes for trenchless replacement of communication lines are distinguished for a fundamentally new approach, simplicity in the use, high efficiency, the preserved green areas, and no long traffic delay. The idea of the process for the trenchless pipeline replacement is disclosed. The specific design features of the air-hammers for replacement of water-disposal lines are given.
UDC 622.233.5 TRENDS IN UP-DATING OF AIR-PERCUSSION MACHINES FOR CONSTRUCTION GEOTECHNOLOGIES
Chervov V. V.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: Air hammer «Typhoon» with an elastic valve in the exhaust air outlet channel is described. The drawbacks of modern air-percussion machines and the problems, encountered in implementation of special construction geotechnologies, are highlighted. The trends of the follow-up advance and up-dating of the equipment for trenchless laying of underground communication lines are proposed.
UDC 622.23.05 TECHNICAL EFFECTIVENESS OF THE PNEUMATIC TRANSPORTATION SYSTEM WITH. A. ROTARY PIPELINE, OPERATING CONCURRENTLY WITH AN AIR HAMMER TO BORE HORIZONTAL HOLES
Danilov B. B.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: Specific features of the horizontal hole boring with the ground removal through a rotary pipeline are considered. The process for evaluation of the critical length length of the transportation pipeline is proposed.
UDC 622.002.5 TRANSMISSION CONFIGURATIONS FOR THE HARMONIC-DRIVE GEOKHOD
Aksenov V. V., Efremenkov A. B.*, Timofeyev V. Ю.*, and Blashchyuk M.Yu.*
Institute of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Science, Kemerovo, Russia
*Yurga Technological Institute, Tomsk Polytechnical University, Yurga, Russia
ABSTRACT: Versions of the transmission configuration are developed for the georover, known as a geokhod. Peripherical, axial and combined transmission configurations are considered in terms of the requirements for the new georover transmission.
UDC 550.834+622.276 UP-DATING OF GENERATORS OF THE VIBROWAVE EFFECT ON OIL RESERVOIR
Simonov B. F., Pogarsky Yu.B., Sivolap B. B., and Kadyshev A. I.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: New type of vibration-exciting device is proposed to generate the seismic vibration-source oscillations which effect an oil reservoir from the daylight surface. The new vibration-exciting device consists of the mechanical, separate, normalized vibromodules, actuated by a single system, which synchronizes their operation and adjusts their parameters. Each vibromodule has co-axially mounted pressing rolls, working as debalances. This design provides appreciably higher cycle life for the press roll bearings and a wider range of frequency adjustment for a vibration-exciting device. The module-type exciters are 1.5 less metal-intensive, as compared to vibrators with stepped mounting of the pressing-roll pairs within a single body. The new-developed facility is simple in the design and exhibits the higher efficiency of vibration sources.
UDC 622.233 INVESTIGATION INTO OPERATION MODES FOR DRILL RIG SBR-400 Klishin V. I., Kokoulin D. I., Kubanychbek B., and Gurtenko A. P.*
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
*OAO «Spetsgidravlika», Novosibirsk, Russia
ABSTRACT: The authors set forth arguments to develop a special drill-rig, capable to bore degassing, technological and deep boreholes in both coal and hard rocks. The design, operation principles of the drill rig, developed at Institute of Mining, SB RAS, in cooperation with OAO «Spetsgidravlika», are described. The procedure for the drill rig tests on hole-making in a coal-cement block at the full-scale test stand is reported.
UDC 621.7.11 PROCEDURE FOR CALCULATION OF PERCUSSION STROKES WITH CRITICAL ELECTROMAGNETIC LOADS
Kargin V. A., Abramov A. D., and Galai M. S.
Siberian Transport University, Novosibirsk, Russia
ABSTRACT: The procedure for calculation of power characteristics for percussion strokes, characterized by critical loads, with consideration for variations in the similarity factor for the process duration.
UDC 622.235 IMPROVEMENT OF ACCEPT INJECTION-WELL CAPACITY WITH. A. CONCURRENT WAVE EFFECT ON PRODUCTIVE STRATA
Savchenko A. V. and Cherednikov E. N.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: Process for the use of hydraulic percussion devices in injection wells in order to generate the wave effect within the bottom-hole zone and productive strata is presented and reasoned.
UDC 622.235 TRENDS IN DEVELOPMENT OF DOWNHOLE WAVE EFFECTS ON METHANE-BEARING SEAMS
Savchenko A. V., Serdyukov S. V., and Cherednikov E. N.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: The authors describe and justify the process for the vibration-effect production by using air hammers in dry and shallow boreholes in order to stimulate the gas recovery from methane-bearing seams.
UDC 621.785 THERMOPLASTIC TREATMENT IN MANUFACTURE OF MINING MACHINERY
Reshedko V. V. and Reshedko P. V.*
Siberian Transport University, Novosibirsk, Russia
*Novosibirsk State Technical University, Novosibirsk, Russia
ABSTRACT: The resource-saving process for manufacture and recovery of machine parts, made of constructional carbon steel, is proposed. The thermoplastic treatment provides hardening of the parts concurrently with molding and recovery of a size of simple-in-shape parts at the repair stage.
UDC 622.531 THE USE OF SIMILARITY CRITERION TO CALCULATE PARAMETERS FOR SELF-OSCILLATING HYDRAULIC PERCUSSION SYSTEMS
Gorodilov L. V. and Pashina O. A.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: The authors present the dimensional analysis and the developed-on-this-basis procedure to calculate prime parameters for hydraulic percussion systems. The parameters of the hydraulic percussion device of dynamic bucket excavator EO-4124А are calculated as an example.
UDC 622.4 EFFECT OF CONSTRUCTIVE ROTOR PARAMETERS ON THE MINE AXIAL FAN STRENGTH
Krasyuk A. M. and Russkii E.Yu.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: The stress-strain state of the working wheel body is evaluated. The dependence between stresses on the sidewall and its thickness is established. The rational location of bridges in the dual sheet blade is found. The authors studied the dependence between blade stresses and density of the material the blade is made of.
UDC 621.634 ENGINEERING AND DESIGN OF BLADE SYSTEMS FOR AXIAL FANS
Grekhneva E.Yu. and Petrov N. N.
Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
ABSTRACT: The procedure for aerodynamic design of S-shaped dual blades of the working wheel for a light-duty reversible axial fan is developed. Geometrical parameters of the working wheel grid for a reversible axial fan of 1000 mm in diameter are calculated.
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