12 research outputs found
Drill pipe threaded nipple connection design development
The paper presents the analysis of the behavior of the drill pipe nipple connection under the additional load generated by power pulses. The strain wave propagation through the nipple thread connection of drill pipes to the bottomhole is studied in this paper. The improved design of the nipple thread connection is suggested using the obtained experimental and theoretical data. The suggested connection design allows not only the efficient transmission of strain wave energy to a drill bit but also the automation of making-up and breaking-out drill pipes
Development of small diameter pilot hole directional drilling for trenchless utility installation
The paper overviews trenchless utility installation techniques and prospects of further development of horizontal directional drilling technology to drill small diameter pilot holes. The improved design is suggested for the thread connection of drill pipes and hydraulic system to generate power pulses
The behavior of enclosed-type connection of drill pipes during percussive drilling
Percussion drilling is the efficient method to drill small holes (>= 70 mm) in medium-hard and harder rocks. The existing types of drill strings for geological explorations are not intended for strain wave energy transfer. The description of the improved design of the drill string having enclosed-type nipple connections is given in this paper presents. This nipple connection is designed to be used in drilling small exploration wells with formation sampling. Experimental findings prove the effectiveness of the enclosed nipple connection in relation to the load distribution in operation. The paper presents research results of the connection behavior under quasistatic loading (compression-tension). Loop diagrams are constructed and analyzed in force-displacement coordinates. Research results are obtained for shear stresses occurred in the nipple connection. A mechanism of shear stress distribution is described for the wave strain propagation over the connecting element. It is shown that in the course of operation the drill pipe tightening reduces the shear stress three times
The technology improvement and development of the new design-engineering principles of pilot bore directional drilling
This paper addresses the effectiveness of impact energy use in pilot bore directional drilling at pipe driving. We establish and develop new design-engineering principles for this method. These principles are based on a drill string construction with a new nipple thread connection and a generator construction of strain waves transferred through the drill string. The experiment was conducted on a test bench. Strain measurement is used to estimate compression, tensile, shear and bending stresses in the drill string during the propagation of elastic waves. Finally, the main directions of pilot bore directional drilling improvement during pipe driving are determinated. The new engineering design, as components of the pilot bore directional drilling technology are presented
Optimization of pellet impact drilling regimes by regulation of spacing between a drill bit and a hole bottom
The relevance of the research. One of the main technological parameters of the pellet impact drilling is the spacing between a drill bitand a holebottom. There are several methods and constructions of drill bits that allow keeping this distance with bit feet. In this case, the jet apparatus is held at a certain distance from the blades, which destroy the border zone or central part of the rock by a rotary method. However, no method makes it possible to determine the optimal distance precisely. Since it is quite difficult to calculate the necessary distance for different rocks considering their mechanical characteristics it is very important to identify and keep the optimum spacing between the drill bit and the hole bottom continuously when drilling. The main aim was to analyze the main methods and constructions of keeping the spacing between the drill bit and the hole bottom, also to formulate the requirements. Considering the requirements, to propose a method for keeping the spacing which allows us to determine continuously the necessary distance for current conditions. Object of researches is a bottomhole drilling.Β Methods: compilation and analysis of the sources; research of technological processes of pellet impact drilling; investigation of the influence of the spacing between the drill bit and the hole bottom on the rock breaking efficiency; representation of a string of drill pipes as an acoustic communication channel in which elastic vibrations spread during impacts of the bounced balls; development of a technological scheme for increasing pellet impact drilling efficiency; experimental studies using an acoustic oscillation sensor and an oscilloscope; analysis of the waveform. Results. The authors have studied the spacing between the drill bit and the hole bottom which affects the efficiency of pellet impact drilling and analyzed the basic methods and constructions. Based on the analysis the requirements were stated. Taking into account the developed requirements the authors proposed the method for keeping the optimal spacing. The paper introduces the experimental results with the proposed method. The results prove the effectiveness of using the method for determining continuously spacing between the drill bit and the hole bottom. The results obtained can be used to select and maintain optimal operating parameters
Analysis and science-based compilation of the results of studying percussion-rotary underground slimhole digging
The relevance of the research is caused by the necessity of improving the engineering and technology of geological explorations and the energy and resource efficiency of drilling. The main aim of the research is to analyse and generalize research results obtained for the possible development and application of the resource-efficient drilling technology using the strain wave generator. The literature review of theoretical and experimental research was carried out in percussion drilling of small holes in medium-hard and harder rocks. To increase the penetration rate, the percussive mechanisms were designed. However, the increase of strain wave energy is reduced by the strength of the drilling tool. At constant hole diameter, the increased impact load should be transmitted over the drill string and their connections having the original size. These very elements of a drill string are the deterrents to implement a new technology. Methodology: theoretical analysis; a vast review of scientific literature on all problems of power pulse formation, strain wave transmission over the drill string, rock failure, appropriate modes of operation of percussion drilling, drilling optimization prior the engineering process, design techniques chosen for percussion drilling systems, work process modeling, energy parameter determination for drilling units, comparison of independent research results Findings. The paper introduces the modern ideas and achievements in the field of small hole percussion drilling. The authors have identified the causes of research results divergence. The expediency of carrying out the research to improve technological and engineering processes and drilling techniques was shown. The authors determined the main trends in researching drilling technology and engineering process and stated the recommendations for improving drilling effectiveness due to intensification of rock failure at well boring
Analysis and science-based compilation of the results of studying percussion-rotary underground slimhole digging
The relevance of the research is caused by the necessity of improving the engineering and technology of geological explorations and the energy and resource efficiency of drilling. The main aim of the research is to analyse and generalize research results obtained for the possible development and application of the resource-efficient drilling technology using the strain wave generator. The literature review of theoretical and experimental research was carried out in percussion drilling of small holes in medium-hard and harder rocks. To increase the penetration rate, the percussive mechanisms were designed. However, the increase of strain wave energy is reduced by the strength of the drilling tool. At constant hole diameter, the increased impact load should be transmitted over the drill string and their connections having the original size. These very elements of a drill string are the deterrents to implement a new technology. Methodology: theoretical analysis; a vast review of scientific literature on all problems of power pulse formation, strain wave transmission over the drill string, rock failure, appropriate modes of operation of percussion drilling, drilling optimization prior the engineering process, design techniques chosen for percussion drilling systems, work process modeling, energy parameter determination for drilling units, comparison of independent research results Findings. The paper introduces the modern ideas and achievements in the field of small hole percussion drilling. The authors have identified the causes of research results divergence. The expediency of carrying out the research to improve technological and engineering processes and drilling techniques was shown. The authors determined the main trends in researching drilling technology and engineering process and stated the recommendations for improving drilling effectiveness due to intensification of rock failure at well boring
Optimization of pellet impact drilling regimes by regulation of spacing between a drill bit and a hole bottom
ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. ΠΡΠΈ Π±ΡΡΠ΅Π½ΠΈΠΈ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· Π³Π»Π°Π²Π½ΡΡ
ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ. ΠΠ·Π²Π΅ΡΡΠ½ΠΎ Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΎ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ ΡΠ½Π°ΡΡΠ΄Π°, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΈΠ²Π°ΡΡ ΡΡΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΠΎΠΏΠΎΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ². Π‘ΡΡΡΠΉΠ½ΡΠΉ Π°ΠΏΠΏΠ°ΡΠ°Ρ ΠΏΡΠΈ ΡΡΠΎΠΌ ΠΆΡΡΡΠΊΠΎ ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΡΡΡ Π½Π° ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ½Π½ΠΎΠΌ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠΈ ΠΎΡ Π²ΠΎΠΎΡΡΠΆΠ΅Π½ΠΈΡ, ΡΠ°Π·ΡΡΡΠ°ΡΡΠ΅Π³ΠΎ ΠΏΠ΅ΡΠΈΡΠ΅ΡΠΈΠΉΠ½ΡΡ ΠΈΠ»ΠΈ ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΡΡ ΡΠ°ΡΡΡ Π·Π°Π±ΠΎΡ Π²ΡΠ°ΡΠ°ΡΠ΅Π»ΡΠ½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ. ΠΠ΄Π½Π°ΠΊΠΎ Π½ΠΈ ΠΎΠ΄ΠΈΠ½ ΡΠΏΠΎΡΠΎΠ± Π½Π΅ Π΄Π°Π΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΎΡΠ½ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ. Π’Π°ΠΊ ΠΊΠ°ΠΊ ΡΠ°ΡΡΡΠΈΡΠ°ΡΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΠ΅ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ Π΄Π»Ρ ΡΠ°Π·Π½ΡΡ
ΠΏΠΎΡΠΎΠ΄ Ρ ΡΡΠ΅ΡΠΎΠΌ ΠΈΡ
ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π΄ΠΎΠ²ΠΎΠ»ΡΠ½ΠΎ ΡΠ»ΠΎΠΆΠ½ΠΎ, Π±ΠΎΠ»ΡΡΠΎΠ΅ Π·Π½Π°ΡΠ΅Π½ΠΈΠ΅ ΠΏΡΠΈΠΎΠ±ΡΠ΅ΡΠ°Π΅Ρ Π²ΡΡΠ²Π»Π΅Π½ΠΈΠ΅ ΠΈ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ Π½Π΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎ, Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ Π±ΡΡΠ΅Π½ΠΈΡ. Π¦Π΅Π»Ρ: ΠΏΡΠΎΠ²Π΅ΡΡΠΈ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² ΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ Π΄Π»Ρ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ, ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ Π½Π° ΠΈΡ
ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ ΡΠ½Π°ΡΡΠ΄Ρ. Π‘ ΡΡΠ΅ΡΠΎΠΌ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠΈΡΡ ΡΠΏΠΎΡΠΎΠ± ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ ΠΏΡΠΈ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠΌ Π±ΡΡΠ΅Π½ΠΈΠΈ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠΈΠΉ Π½Π΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΡΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎΠ΅ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ Π΄Π»Ρ ΡΠ΅ΠΊΡΡΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΠΉ. ΠΠ±ΡΠ΅ΠΊΡΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΡΡΡΡ ΠΏΡΠΈΠ·Π°Π±ΠΎΠΉΠ½ΡΠ΅ ΠΏΡΠΎΡΠ΅ΡΡΡ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ. ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ°: ΠΎΠ±ΠΎΠ±ΡΠ΅Π½ΠΈΠ΅ ΠΈ Π°Π½Π°Π»ΠΈΠ· Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΠ½ΡΡ
ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ²; ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ; ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΌΠ΅ΠΆΠ΄Ρ Π΄ΠΎΠ»ΠΎΡΠΎΠΌ ΠΈ Π·Π°Π±ΠΎΠ΅ΠΌ Π½Π° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄; ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΠ»ΠΎΠ½Π½Ρ Π±ΡΡΠΈΠ»ΡΠ½ΡΡ
ΡΡΡΠ± Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π°ΠΊΡΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΠ°Π½Π°Π»Π° ΡΠ²ΡΠ·ΠΈ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½ΡΡΡΡΡ ΡΠΏΡΡΠ³ΠΈΠ΅ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΡ ΠΏΡΠΈ ΡΠ΄Π°ΡΠ°Ρ
ΠΎΡΡΠΊΠΎΡΠΈΠ²ΡΠΈΡ
ΠΎΡ Π·Π°Π±ΠΎΡ ΡΠ°ΡΠΎΠ² ΠΏΠΎ Π΄ΠΎΠ»ΠΎΡΡ; ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡ
Π΅ΠΌΡ Π΄Π»Ρ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ; ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π΄Π°ΡΡΠΈΠΊΠ° Π°ΠΊΡΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΠΈ ΠΎΡΡΠΈΠ»Π»ΠΎΠ³ΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΏΡΠΈΡΡΠ°Π²ΠΊΠΈ; ΡΡΠΈΡΡΠ²Π°Π½ΠΈΠ΅ ΠΈ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΡΠΈΠ»Π»ΠΎΠ³ΡΠ°ΠΌΠΌ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ, ΠΊΠΎΡΠΎΡΠΎΠ΅ ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅Ρ Π²Π»ΠΈΡΠ½ΠΈΠ΅ Π½Π° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ· ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΡΠΏΠΎΡΠΎΠ±ΠΎΠ² ΠΈ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ, Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°Π½Ρ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ Π±ΡΡΠΎΠ²ΠΎΠΌΡ ΡΠ½Π°ΡΡΠ΄Ρ. Π‘ ΡΡΠ΅ΡΠΎΠΌ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΡΡ
ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ ΡΠΏΠΎΡΠΎΠ± ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ ΠΏΡΠΈ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠΌ Π±ΡΡΠ΅Π½ΠΈΠΈ. ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ, Π΄ΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡΠΈΠ΅ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π΅Π³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Ρ ΡΠ΅Π»ΡΡ Π½Π΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎΠ³ΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ ΠΎΡ ΡΠ½Π°ΡΡΠ΄Π° Π΄ΠΎ Π·Π°Π±ΠΎΡ. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π΄Π»Ρ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ Π½Π΅ΠΏΡΠ΅ΡΡΠ²Π½ΠΎΠ³ΠΎ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠ°Π½ΠΈΡ ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΡΡ
ΡΠ΅ΠΆΠΈΠΌΠΎΠ² Π±ΡΡΠ΅Π½ΠΈΡ.The relevance of the research. One of the main technological parameters of the pellet impact drilling is the spacing between a drill bitand a holebottom. There are several methods and constructions of drill bits that allow keeping this distance with bit feet. In this case, the jet apparatus is held at a certain distance from the blades, which destroy the border zone or central part of the rock by a rotary method. However, no method makes it possible to determine the optimal distance precisely. Since it is quite difficult to calculate the necessary distance for different rocks considering their mechanical characteristics it is very important to identify and keep the optimum spacing between the drill bit and the hole bottom continuously when drilling. The main aim was to analyze the main methods and constructions of keeping the spacing between the drill bit and the hole bottom, also to formulate the requirements. Considering the requirements, to propose a method for keeping the spacing which allows us to determine continuously the necessary distance for current conditions. Object of researches is a bottomhole drilling. Methods: compilation and analysis of the sources; research of technological processes of pellet impact drilling; investigation of the influence of the spacing between the drill bit and the hole bottom on the rock breaking efficiency; representation of a string of drill pipes as an acoustic communication channel in which elastic vibrations spread during impacts of the bounced balls; development of a technological scheme for increasing pellet impact drilling efficiency; experimental studies using an acoustic oscillation sensor and an oscilloscope; analysis of the waveform. Results. The authors have studied the spacing between the drill bit and the hole bottom which affects the efficiency of pellet impact drilling and analyzed the basic methods and constructions. Based on the analysis the requirements were stated. Taking into account the developed requirements the authors proposed the method for keeping the optimal spacing. The paper introduces the experimental results with the proposed method. The results prove the effectiveness of using the method for determining continuously spacing between the drill bit and the hole bottom. The results obtained can be used to select and maintain optimal operating parameters
Results of experimental studies of the hydraulic pulse mechanism for drilling pilot wells during pipeline laying
ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. Π Π³ΠΎΡΠ½ΠΎΠΌ Π΄Π΅Π»Π΅ ΠΈ Π² Π΄ΡΡΠ³ΠΈΡ
ΠΎΡΡΠ°ΡΠ»ΡΡ
ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ ΡΠΈΡΠΎΠΊΠΎ ΠΏΡΠΈΠΌΠ΅Π½ΡΡΡΡΡ Π³ΠΈΠ΄ΡΠ°Π²Π»ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΄Π°ΡΠ½ΡΠ΅ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΡ, ΠΊΠΎΡΠΎΡΡΠ΅ Π² Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠ°ΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎ ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°ΡΡΡΡ. Π ΡΠ°ΡΡΠ½ΠΎΡΡΠΈ, ΠΏΠΎΡΠ²Π»ΡΡΡΡΡ ΠΏΡΠ±Π»ΠΈΠΊΠ°ΡΠΈΠΈ ΠΏΠΎ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΠΎΠΉ ΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΡΠΎΡΠΌΠΈΡΡΠ΅ΠΌΡΡ
Π³ΠΈΠ΄ΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠΈΡΡΠ΅ΠΌΠ°ΠΌΠΈ ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π΄Π°Π²Π»Π΅Π½ΠΈΡ Π² Π·Π°ΠΌΠΊΠ½ΡΡΡΡ
ΠΊΠ°ΠΌΠ΅ΡΠ°Ρ
, ΡΠ΅ΡΠ΅Π· ΠΊΠΎΡΠΎΡΡΠ΅ ΠΏΠΎΡΡΠ½ΠΈ-ΡΠ΄Π°ΡΠ½ΠΈΠΊΠΈ ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡ ΡΠ½Π΅ΡΠ³ΠΈΡ ΡΠ΄Π°ΡΠ° Π±ΡΡΠΎΠ²ΠΎΠΌΡ ΠΏΠΎΡΠΎΠ΄ΠΎΡΠ°Π·ΡΡΡΠ°ΡΡΠ΅ΠΌΡ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΡ. ΠΡΠΈ ΡΡΠΎΠΌ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅ΡΡΡ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΡΠΈΠ»ΠΎΠ²ΡΡ
ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ², ΡΡΠΎ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎ ΠΏΠΎΠ²ΡΡΠ°Π΅Ρ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΠΈΡ
ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π½Π° ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΠ΅ Π³ΡΡΠ½ΡΠ°, Π° ΡΠ°ΠΊΠΆΠ΅ ΡΠ³Π»Π°ΠΆΠΈΠ²Π°ΡΡΡΡ ΡΡΠ΅Π·ΠΌΠ΅ΡΠ½ΡΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π½Π°Π³ΡΡΠ·ΠΊΠΈ Π½Π° ΡΠ»Π΅ΠΌΠ΅Π½ΡΡ Π±ΡΡΠΎΠ²ΠΎΠ³ΠΎ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠ°. ΠΠ΄Π½Π°ΠΊΠΎ Π² ΡΠ°ΠΊΠΈΡ
ΡΠ΄Π°ΡΠ½ΡΡ
ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ°Ρ
ΠΎΡΡΠ°ΡΡΡΡ ΠΏΠΎΡΡΠ½ΠΈ-ΡΠ΄Π°ΡΠ½ΠΈΠΊΠΈ, Π² ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΡΠ°Π±ΠΎΡΡ ΠΊΠΎΡΠΎΡΡΡ
ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΡΠ΅ΡΠΈ ΡΠ½Π΅ΡΠ³ΠΈΠΈ, ΡΠ²ΡΠ·Π°Π½Π½ΡΠ΅ Ρ Π²ΠΎΠ·Π²ΡΠ°ΡΠ½ΠΎ-ΠΏΠΎΡΡΡΠΏΠ°ΡΠ΅Π»ΡΠ½ΡΠΌΠΈ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡΠΌΠΈ Π±ΠΎΠΉΠΊΠΎΠ² Π² Π³ΠΈΠ΄ΡΠΎΡΠΈΠ»ΠΈΠ½Π΄ΡΠ΅ ΡΠ΄Π°ΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ°. ΠΡΠ» ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½ ΠΏΡΠΈΠ½ΡΠΈΠΏΠΈΠ°Π»ΡΠ½ΠΎ Π½ΠΎΠ²ΡΠΉ Π±Π΅Π·Π±ΠΎΠΉΠΊΠΎΠ²ΡΠΉ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ, ΠΊΠΎΡΠΎΡΡΠΉ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΠΈ ΡΠ°Π·ΡΡΡΠ°Π΅ΠΌΠΎΠΉ ΡΡΠ΅Π΄Ρ ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅Ρ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Ρ ΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΡΠΎΡΠΌΠΈΡΡΠ΅ΠΌΡΡ
ΠΈΠΌ ΡΠΈΠ»ΠΎΠ²ΡΡ
ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π² Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΠ΅ΠΆΠΈΠΌΠ΅ Π±Π΅Π· ΠΏΡΠΈΠ²Π»Π΅ΡΠ΅Π½ΠΈΡ ΠΊΠ°ΠΊΠΈΡ
-Π»ΠΈΠ±ΠΎ ΡΡΠ΅Π΄ΡΡΠ² ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ. ΠΠ΄Π½Π°ΠΊΠΎ Π΄Π»Ρ Π½Π°ΡΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΡ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·ΠΈ Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΈ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ Π² ΡΠ΅Π»ΠΎΠΌ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΡΠΎΠ²Π΅ΡΡΠΈ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΡΠ΅ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΊΠΎΡΠΎΡΡΡ
ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΈ Π±Ρ ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°ΡΡ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ Π΄Π»Ρ Π±ΡΡΠ΅Π½ΠΈΡ ΠΏΠΈΠ»ΠΎΡΠ½ΡΡ
ΡΠΊΠ²Π°ΠΆΠΈΠ½ ΠΏΡΠΈ ΠΏΡΠΎΠΊΠ»Π°Π΄ΠΊΠ΅ ΡΡΡΠ±ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ², ΡΡΠΎ, Π±Π΅Π·ΡΡΠ»ΠΎΠ²Π½ΠΎ, ΡΠ²Π»ΡΠ΅ΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ Π½Π°ΡΡΠ½ΠΎ-ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ Π·Π°Π΄Π°ΡΠ΅ΠΉ. Π¦Π΅Π»Ρ: ΠΎΠ±ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΈ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½Π°Ρ ΠΏΡΠΎΠ²Π΅ΡΠΊΠ° Π² Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠ½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΡΠ°Π±ΠΎΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏΠΈΠ°Π»ΡΠ½ΠΎ Π½ΠΎΠ²ΠΎΠ³ΠΎ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Π΄Π»Ρ ΠΈΠ½ΡΠ΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄ ΠΈΠ»ΠΈ Π³ΡΡΠ½ΡΠ° Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΠΌΠΈ Π²ΠΊΠ»ΡΡΠ΅Π½ΠΈΡΠΌΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΠΎΠΉ ΡΠ²ΡΡΠ΄ΠΎΡΡΠΈ ΠΏΡΠΈ Π±ΡΡΠ΅Π½ΠΈΠΈ ΠΏΠΈΠ»ΠΎΡΠ½ΡΡ
ΡΠΊΠ²Π°ΠΆΠΈΠ½ Ρ Π±Π΅ΡΡΡΠ°Π½ΡΠ΅ΠΉΠ½ΠΎΠΉ ΠΏΡΠΎΠΊΠ»Π°Π΄ΠΊΠΎΠΉ ΡΡΡΠ±ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ². ΠΠ±ΡΠ΅ΠΊΡΠΎΠΌ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π±Π΅Π·Π±ΠΎΠΉΠΊΠΎΠ²ΡΠΉ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ Ρ Π·Π°ΠΌΠΊΠ½ΡΡΡΠΌ ΠΎΠ±ΡΡΠΌΠΎΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ ΡΠΎΡΠΌΠΈΡΡΡΡΡΡ ΡΠΈΠ»ΠΎΠ²ΡΠ΅ ΠΈΠΌΠΏΡΠ»ΡΡΡ, ΠΏΠΎΠ²ΡΡΠ°ΡΡΠΈΠ΅ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³ΡΡΠ½ΡΠ° ΠΈ Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄ Ρ Π²ΠΊΠ»ΡΡΠ΅Π½ΠΈΡΠΌΠΈ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΠΎΠΉ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΠΈ Π·Π° ΡΡΠ΅Ρ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΈΡ
Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΠΎΠΉ ΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ. ΠΡΠ΅Π΄ΠΌΠ΅Ρ: Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΡΡΠΈ ΠΈ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·ΠΈ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΊΠΈΠ½Π΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Ρ ΡΠ΅Π»ΡΡ ΠΎΡΠ΅Π½ΠΊΠΈ Π΅Π³ΠΎ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΈ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ² ΠΏΠ΅ΡΠ΅Π΄ Π΄ΡΡΠ³ΠΈΠΌΠΈ ΡΠ΄Π°ΡΠ½ΡΠΌΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ°ΠΌΠΈ, Π²ΠΊΠ»ΡΡΠ°ΡΡΠΈΠΌΠΈ Π·Π°ΠΌΠΊΠ½ΡΡΡΠΉ ΠΎΠ±ΡΡΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠ΅Π»Π°, ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠ΅Π³ΠΎ ΡΠ΄Π°ΡΠ½ΡΠ΅ ΠΈΠΌΠΏΡΠ»ΡΡΡ Π² Π±ΡΡΠΎΠ²ΠΎΠΉ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½Ρ. ΠΠ΅ΡΠΎΠ΄Ρ: Π°Π½Π°Π»ΠΈΠ· Π½Π°ΡΡΠ½ΠΎ-ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΏΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ Π±ΡΡΠΈΠ»ΡΠ½ΡΡ
ΠΌΠ°ΡΠΈΠ½ ΡΠ΄Π°ΡΠ½ΠΎΠ³ΠΎ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ; ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ² Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° ΠΈ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π΅Π³ΠΎ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π΄Π»Ρ Π²ΡΡΠ²Π»Π΅Π½ΠΈΡ Π²Π·Π°ΠΈΠΌΠΎΡΠ²ΡΠ·Π΅ΠΉ Π΅Π³ΠΎ ΠΎΡΠ½ΠΎΠ²Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΈ ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ; ΡΡΠ°Π²Π½Π΅Π½ΠΈΠ΅ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠ³ΠΎ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Ρ ΠΈΠ·Π²Π΅ΡΡΠ½ΡΠΌΠΈ Π³ΠΈΠ΄ΡΠΎΡΠ΄Π°ΡΠ½ΡΠΌΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ°ΠΌΠΈ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΠΈΠΌΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΠΎΠΉ ΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡΡ ΡΠ΄Π°ΡΠ½ΡΡ
ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² ΠΏΡΠΈ ΠΏΠ΅ΡΠ΅Π΄Π°ΡΠ΅ ΠΈΡ
ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΡΠ΅ΡΠ΅Π· Π·Π°ΠΌΠΊΠ½ΡΡΡΠΉ ΠΎΠ±ΡΡΠΌ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ ΠΈ Π±ΡΡΠΈΠ»ΡΠ½ΡΡ ΠΊΠΎΠ»ΠΎΠ½Π½Ρ Π½Π° ΠΏΠΎΡΠΎΠ΄ΡΠ°Π·ΡΡΡΠ°ΡΡΠΈΠΉ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½Ρ Π΄Π»Ρ ΠΈΠ½ΡΠ΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΠΎΠΉ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. ΠΠ°Π½Π° ΠΎΡΠ΅Π½ΠΊΠ° ΡΠ°Π±ΠΎΡΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ Π³ΠΈΠ΄ΡΠΎΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° ΠΈ Π΅Π³ΠΎ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΏΠΎ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ Ρ ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΠΌΠΈ Π³ΠΈΠ΄ΡΠΎΡΠ΄Π°ΡΠ½ΡΠΌΠΈ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ°ΠΌΠΈ. ΠΠΎΡΠΊΠΎΠ»ΡΠΊΡ Π² ΠΏΡΠ΅Π΄Π»Π°Π³Π°Π΅ΠΌΠΎΠΌ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠΌ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ΅ Π½Π΅Ρ Π±ΠΎΠΉΠΊΠ°, Π² Π½Π΅ΠΌ ΠΎΡΡΡΡΡΡΠ²ΡΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ Π΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΡΠ΅ΡΠΈ ΡΠ½Π΅ΡΠ³ΠΈΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΈΠΌΠ΅ΡΡ ΠΌΠ΅ΡΡΠΎ ΠΏΡΠΈ Π²ΠΎΠ·Π²ΡΠ°ΡΠ½ΠΎ-ΠΏΠΎΡΡΡΠΏΠ°ΡΠ΅Π»ΡΠ½ΠΎΠΌ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΠΈ ΠΏΠΎΡΡΠ½Ρ-Π±ΠΎΠΉΠΊΠ° Π² Π³ΠΈΠ΄ΡΠΎΡΠΈΠ»ΠΈΠ½Π΄ΡΠ΅. ΠΡΠΎΠΌΠ΅ ΡΠΎΠ³ΠΎ, Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΡΠ°Π±ΠΎΡΡ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Π±Π΅Π· ΠΌΠ°ΡΠ»ΠΎΡΡΠ°Π½ΡΠΈΠΈ, ΠΎΡΡΡΡΡΡΠ²ΡΡΡ ΠΏΠΎΡΠ΅ΡΠΈ ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π½Π° ΠΏΠ΅ΡΠ΅ΠΊΠ°ΡΠΈΠ²Π°Π½ΠΈΠ΅ ΠΆΠΈΠ΄ΠΊΠΎΡΡΠΈ. ΠΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΠΏΠΎΠ»Π΅Π·Π½ΠΎΠ³ΠΎ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΠ° Π²ΡΡΠ΅, ΡΠ΅ΠΌ Ρ Π΄ΡΡΠ³ΠΈΡ
ΡΡΡΠ΅ΡΡΠ²ΡΡΡΠΈΡ
Π³ΠΈΠ΄ΡΠΎΡΠ΄Π°ΡΠ½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ Π΅ΡΡ ΠΈ ΠΏΠΎΡΠΎΠΌΡ, ΡΡΠΎ ΠΎΠ½ ΡΠΎΡΠΌΠΈΡΡΠ΅Ρ ΡΠΈΠ»ΠΎΠ²ΡΠ΅ ΠΈΠΌΠΏΡΠ»ΡΡΡ Ρ ΡΠ°ΡΡΠΎΡΠ½ΡΠΌ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌ, Π² ΠΊΠΎΡΠΎΡΠΎΠΌ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΈ ΠΎΡΡΡΡΡΡΠ²ΡΡΡ Π²ΡΡΠΎΠΊΠΎΡΠ°ΡΡΠΎΡΠ½ΡΠ΅ ΡΠΎΡΡΠ°Π²Π»ΡΡΡΠΈΠ΅, Π½Π΅ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΡΡΠΈΠ΅ ΠΈΠ½ΡΠ΅Π½ΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ°Π·ΡΡΡΠ΅Π½ΠΈΡ Π³ΠΎΡΠ½ΡΡ
ΠΏΠΎΡΠΎΠ΄, ΠΏΡΠΈ ΡΡΠΎΠΌ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅ΡΡΡ Π΄ΠΎΠ»Ρ ΡΠ½Π΅ΡΠ³ΠΈΠΈ ΡΠΈΠ»ΠΎΠ²ΡΡ
ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π² ΠΏΡΠΎΠ΄ΠΎΠ»ΡΠ½ΡΡ
Π²ΠΎΠ»Π½Π°Ρ
Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ, ΡΡΠΎ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ Π±ΡΡΠ΅Π½ΠΈΡ ΡΠΊΠ²Π°ΠΆΠΈΠ½. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π³ΠΈΠ΄ΡΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΠΉ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΈ ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅Ρ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Ρ ΠΈ Π΄Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΡΠΈΠ»ΠΎΠ²ΡΡ
ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΠΈ ΡΠ°Π·ΡΡΡΠ°Π΅ΠΌΠΎΠΉ ΡΡΠ΅Π΄Ρ ΠΈ Π½Π΅ ΡΡΠ΅Π±ΡΠ΅Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΡΠΈΠΌ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠΌ.The relevance. Hydraulic percussive mechanisms are widely used in mining and other industries. They are currently being actively improved. In particular, numerous publications argue that it is possible to control the amplitude and duration of pressure pulses generated by hydromechanical systems in closed-loop system, through which the plunger transmit the impact energy to the rock-breaking tool. At the same time, increased duration of the power pulses lead to significant increase in the efficiency of rock failure, the excessive dynamic loads on the elements of the drilling tool are reduced. Typically percussion mechanisms have hammer the reciprocating motion of which leads to energy losses. A fundamentally new hammerless hydraulic mechanism was developed. It allows automatic regulating the amplitude and duration of the force pulses it generates, depending on the hardness of the destroyed rock. Nevertheless, it is necessary to conduct special studies in order to substantiate interrelations among its main parameters and operability in general. The main aim of the research is substantiation and experimental verification of the physical model of new hydraulic percussive mechanism in laboratory settings. Object of study is new hydraulic percussive mechanism with a closed chamber, where force pulses are formed, making the rock destruction more efficient. Subject: regularities and relationships of the main kinematic and dynamic parameters of the physical model of the hydraulic percussive mechanism. Methods: analysis of scientific and technical information regarding field of knowledge; modeling the dynamic processes in hydraulic percussive mechanism and laboratory investigation. Results. The efficiency of the hammerless hydraulic mechanisms is assessed; its advantages are revealed in comparison with the existing hydraulic percussion mechanisms; it has been established that the hammerless hydraulic mechanisms automatically regulate the amplitude and duration of power pulses depending on the hardness of the destroyed rock and do not require an additional control system for this process; the efficiency of the hydraulic percussive mechanism is higher than in existing hydro percussive systems as it forms power pulses that practically have no high-frequency components, not conducive to the rocks destruction
Developing recommendations for optimizing the design of the drilling bit for pellet impact drilling
ΠΠΊΡΡΠ°Π»ΡΠ½ΠΎΡΡΡ. ΠΠ΅ΡΠΌΠΎΡΡΡ Π½Π° Π°ΠΊΡΠΈΠ²Π½ΠΎΠ΅ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ Π²ΠΎΠ·ΠΎΠ±Π½ΠΎΠ²Π»ΡΠ΅ΠΌΡΡ
ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ² ΡΠ½Π΅ΡΠ³ΠΈΠΈ, ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΠΎΠ΅ ΡΠΎΠΏΠ»ΠΈΠ²ΠΎ Π²ΡΠ΅ Π΅ΡΠ΅ Π·Π°Π½ΠΈΠΌΠ°Π΅Ρ Π»ΠΈΠ΄ΠΈΡΡΡΡΡΡ ΠΏΠΎΠ·ΠΈΡΠΈΡ ΡΡΠ΅Π΄ΠΈ ΠΈΠ·Π²Π΅ΡΡΠ½ΡΡ
ΡΠ½Π΅ΡΠ³ΠΎΡΠ΅ΡΡΡΡΠΎΠ². ΠΡΠΈ ΡΡΠΎΠΌ, ΡΠΎΠ³Π»Π°ΡΠ½ΠΎ ΠΏΡΠΎΠ³Π½ΠΎΠ·Π°ΠΌ, Π² Π±Π»ΠΈΠΆΠ°ΠΉΡΠΈΠ΅ Π΄Π΅ΡΡΡΠΈΠ»Π΅ΡΠΈΡ Π ΠΎΡΡΠΈΡ ΠΎΡΡΠ°Π½Π΅ΡΡΡ ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΈΡ
ΠΊΡΡΠΏΠ½Π΅ΠΉΡΠΈΡ
ΠΌΠΈΡΠΎΠ²ΡΡ
ΡΠΊΡΠΏΠΎΡΡΠ΅ΡΠΎΠ². ΠΠΎΡΡΠΎΠΌΡ Π² Π½Π°ΡΠ΅ΠΉ ΡΡΡΠ°Π½Π΅ Π²ΡΠ΅ Π±ΠΎΠ»Π΅Π΅ ΠΎΡΡΡΠΎ ΡΡΠΎΠΈΡ Π²ΠΎΠΏΡΠΎΡ ΠΏΠΎ ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΌΠ° Π΄ΠΎΠ±ΡΡΠΈ ΠΏΠΎΠ»Π΅Π·Π½ΡΡ
ΠΈΡΠΊΠΎΠΏΠ°Π΅ΠΌΡΡ
, ΡΡΠΎ ΡΡΠ΅Π±ΡΠ΅Ρ ΡΠ°Π·Π²Π΅Π΄ΠΊΠΈ Π½ΠΎΠ²ΡΡ
ΠΌΠ΅ΡΡΠΎΡΠΎΠΆΠ΄Π΅Π½ΠΈΠΉ, ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠΈ Π½ΠΎΠ²ΡΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠΈΡ
ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΡΡ ΡΠ°Π±ΠΎΡΡ Π² ΡΠ»ΠΎΠΆΠ½ΡΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΡΠ°ΠΊΠΈΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ ΠΌΠΎΠΆΠ΅Ρ ΡΡΠ°ΡΡ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ΅ Π±ΡΡΠ΅Π½ΠΈΠ΅. ΠΠ°Π΄ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ΠΌ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ ΡΠ°Π±ΠΎΡΠ°Π»ΠΈ ΡΡΠ΄ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»Π΅ΠΉ. ΠΡΠ»ΠΎ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΎ Π±ΠΎΠ»ΡΡΠΎΠ΅ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠ½Π°ΡΡΠ΄ΠΎΠ² Π΄Π»Ρ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ. ΠΡΠΈ ΡΡΠΎΠΌ Π΄ΠΎ ΡΠΈΡ
ΠΏΠΎΡ Π½Π΅ ΡΡΡΠ΅ΡΡΠ²ΡΠ΅Ρ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ, ΠΏΡΠΈΠ½ΡΡΠΎΠΉ Π·Π° Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠ°ΡΠΈΠΎΠ½Π°Π»ΡΠ½ΡΡ. Π¦Π΅Π»Ρ: ΡΠ°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΡΠ΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°ΡΠΈΠΉ ΠΊ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ ΡΠ½Π°ΡΡΠ΄Π° Π΄Π»Ρ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ, Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΠΏΠΎΠ»Π½ΠΎ ΠΎΡΠ²Π΅ΡΠ°ΡΡΠ΅Π³ΠΎ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡΠΌ Π³Π΅ΠΎΠ»ΠΎΠ³ΠΎΡΠ°Π·Π²Π΅Π΄ΠΎΡΠ½ΡΡ
ΠΈ Π³ΠΎΡΠ½ΠΎΠ΄ΠΎΠ±ΡΠ²Π°ΡΡΠΈΡ
ΠΎΡΡΠ°ΡΠ»Π΅ΠΉ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΠΎΡΡΠΈ. ΠΠ±ΡΠ΅ΠΊΡΠΎΠΌ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ΅ΡΡΡ Π±ΡΡΠΎΠ²ΠΎΠΉ ΡΠ½Π°ΡΡΠ΄ Π΄Π»Ρ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ. ΠΠ΅ΡΠΎΠ΄Ρ: ΠΎΠ±Π·ΠΎΡ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΠ½ΡΡ
ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ²; ΡΠΈΡΡΠ΅ΠΌΠ°ΡΠΈΠ·Π°ΡΠΈΡ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
ΠΏΡΠΈΠ·Π½Π°ΠΊΠΎΠ² ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΡΠ½Π°ΡΡΠ΄ΠΎΠ² Π΄Π»Ρ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΠΎΠ³ΠΎ Π±ΡΡΠ΅Π½ΠΈΡ; Π°Π½Π°Π»ΠΈΠ· ΠΈΠ·Π²Π΅ΡΡΠ½ΡΡ
ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΡΠΎΠ³Π»Π°ΡΠ½ΠΎ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π½ΠΎΠΉ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π½Π°ΠΈΠ±ΠΎΠ»ΡΡΠ°Ρ ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠ°Ρ ΡΠΊΠΎΡΠΎΡΡΡ Π±ΡΡΠ΅Π½ΠΈΡ ΡΠ°ΡΠΎΡΡΡΡΠΉΠ½ΡΠΌ ΡΠΏΠΎΡΠΎΠ±ΠΎΠΌ Π±ΡΠ΄Π΅Ρ Π΄ΠΎΡΡΠΈΠ³Π°ΡΡΡΡ ΠΏΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΡΠ½Π°ΡΡΠ΄Π°, ΡΠΎΡΡΠΎΡΡΠ΅Π³ΠΎ ΠΈΠ· ΠΎΠ΄Π½ΠΎΠΉ ΠΊΠ°ΠΌΠ΅ΡΡ ΡΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΡΠΈΠ»ΠΈΠ½Π΄ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΎΡΠΌΡ. ΠΡΠΈ ΡΡΠΎΠΌ ΠΏΠΎΠ΄ΡΠ΅ΠΌ ΡΠ°ΡΠΎΠ² Π²ΡΡΠ΅ Π²ΠΏΡΡΠΊΠ½ΡΡ
ΠΎΠΊΠΎΠ½ Π΄ΠΎΠ»ΠΆΠ΅Π½ Π±ΡΡΡ ΠΎΠ³ΡΠ°Π½ΠΈΡΠ΅Π½ Π·Π°Π΄Π΅ΡΠΆΠΈΠ²Π°ΡΡΠΈΠΌ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎΠΌ, Π° ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΠ΅ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠ½Π°ΡΡΠ΄ΠΎΠΌ ΠΈ Π·Π°Π±ΠΎΠ΅ΠΌ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΈΠ²Π°ΡΡ Π±Π΅Π· ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ², ΠΊΠΎΠ½ΡΠ°ΠΊΡΠΈΡΡΡΡΠΈΡ
Ρ Π·Π°Π±ΠΎΠ΅ΠΌ ΡΠΊΠ²Π°ΠΆΠΈΠ½Ρ. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΡ ΡΠ½Π°ΡΡΠ΄Π°, ΡΠ΄ΠΎΠ²Π»Π΅ΡΠ²ΠΎΡΡΡΡΠ΅Π³ΠΎ ΠΏΠ΅ΡΠ΅ΡΠΈΡΠ»Π΅Π½Π½ΡΠΌ ΠΊΡΠΈΡΠ΅ΡΠΈΡΠΌ.Relevance. Despite the active development of renewable energy sources, fossil fuels still occupy a leading position among the known energy resources. According to forecasts, in the coming decades Russia will remain one of the largest world exporters of fossil fuels. In Russia, the issue of maintaining the volume of extraction of minerals is becoming more and more acute. This requires the exploration of new deposits, as well as the development of new solutions that allow carrying out the work in difficult conditions. Pellet impact drilling can be one of such solutions. Some researchers have worked on the development of this drilling method. A large number of different pellet impact drilling bits have been proposed. At the same time, there is still no design accepted as the most rational one. Purpose: development of recommendations for the design of a drilling bit for pellet impact drilling, which most fully meets the requirements of geological exploration and mining industries. The object of the research is a drilling bit for pellet impact drilling. Methods: review of literary sources; systematization of the classification features of various designs of drilling bits for pellet impact drilling; analysis of previously developed designs according to the classification developed in this work. Results. It was found that the highest mechanical speed of pellet impact drilling is achieved when using a drilling bit consisting of one mixing chamber, cylindrical in shape, with a diffuser on the lower edge. In this case, the rise of the pellets above the inlet ports must be limited by a retarding device, and the distance between the drilling bit and the well bottom must be maintained without using the elements contacting with the well bottom. The paper proposes a design of the drilling bit which meets the mentioned criteria