CN109538183B - Drilling, slitting and fracturing integrated device for hard rock - Google Patents
Drilling, slitting and fracturing integrated device for hard rock Download PDFInfo
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- CN109538183B CN109538183B CN201811515544.6A CN201811515544A CN109538183B CN 109538183 B CN109538183 B CN 109538183B CN 201811515544 A CN201811515544 A CN 201811515544A CN 109538183 B CN109538183 B CN 109538183B
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- 239000011435 rock Substances 0.000 title claims abstract description 54
- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 238000001125 extrusion Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003245 coal Substances 0.000 description 8
- 230000005641 tunneling Effects 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000009918 complex formation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000002697 Tooth Abrasion Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A hard rock drilling, slitting and fracturing integrated device comprises an oil cylinder supporting seat, a thrust oil cylinder, a guide rail, a rotary driving device, a rubber ring, a reverse extrusion ring, a drill rod, a drill bit, a runner shaft, a rotary sealing shaft and a rotary sealing sleeve; the oil cylinder support seat is fixed at the rear end of the guide rail, the rotary driving device is connected with the guide rail in a sliding manner, the pushing oil cylinder is fixed on the oil cylinder support seat, a piston rod of the pushing oil cylinder is connected with the rotary driving device, the front end of the output shaft is connected with the rear end of the drill rod, the front end of the drill rod is connected with the rear end of the drill bit, the runner shaft arranged in the output shaft and the drill rod is connected with the rear end of the drill bit, the rotary sealing sleeve is fixed at the rear end of the rotary driving device, the rotary sealing shaft penetrates through the rotary sealing sleeve to be connected with the runner shaft, and the rubber ring is fixed at the front end of the rotary driving device and is connected with the backward extrusion ring. The invention can realize the integrated operation of drilling, cutting and fracturing of the hard rock mass and has the advantages of strong capability of breaking down the hard rock mass (f > 10), high efficiency, low dust yield and the like.
Description
Technical Field
The invention relates to a device integrating hard rock drilling, slitting and fracturing, which is suitable for tunneling construction of a roadway or tunnel rock mass with a higher Brinell hardness coefficient (f > 10).
Background
Coal mining has evolved toward deep and complex formations, and has presented higher demands and new challenges for deep, complex formation coal resource safe and efficient mining techniques and equipment. As the ground stress is increased, the elastic modulus, hardness, breaking strength and the like of deep and complex stratum coal rocks are increased, and the uniaxial compressive strength is often more than 150 MPa. Although the blasting tunneling method has the characteristics of flexibility, convenience, low cost, strong adaptability and no influence of geological condition change, the blasting tunneling method has the defects of multiple procedures, low safety, low tunneling efficiency and the like. The cutter is severely worn and has large consumption during mechanical cutting and rock breaking, and is mainly used for cutting and breaking coal and rock with the Prussian hardness coefficient f less than or equal to 8; most of the coal and rock can be crushed by mechanical impact, but the problems of serious and falling-off of ball tooth abrasion, low rock-crushing efficiency, large dust amount and the like exist in the hard coal and rock (f > 10), so that the capability, efficiency, service life and reliability of the mechanical impact rock-crushing are greatly reduced, and how to realize safe and efficient crushing of the hard coal and rock becomes a key problem and difficulty in efficient development of ore body resources such as deep and complex stratum coal.
At present, the technology of drilling, slitting and fracturing the hard rock (f > 10) is not presented, and the technology has a plurality of difficulties such as difficult sealing of the rock passages and the like, which need to be overcome so as to ensure that the cut annular gap can be fractured under the action of high-pressure abrasive.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the device for integrating drilling, slitting and fracturing of the hard rock, which can realize the integrated operation mode of drilling, slitting and fracturing of the hard rock and has the advantages of strong capability of crushing hard rock, high efficiency and low dust yield.
The technical scheme adopted for solving the technical problems is as follows: the device mainly comprises an oil cylinder supporting seat, a thrust oil cylinder, a guide rail, a rotary driving device, a rubber ring, a reverse extrusion ring, a drill rod, a drill bit, a runner shaft, a rotary sealing shaft and a rotary sealing sleeve; the rotary sealing device comprises a guide rail, a rotary driving device, a thrust cylinder, a rotary extrusion ring, a rotary sealing sleeve, a rotary extrusion ring, a rotary extrusion device and a rotary extrusion device, wherein the cylinder supporting seat is fixed at the rear end of the guide rail; high-pressure abrasive input from an abrasive liquid input port at the side part of the rotary sealing sleeve is respectively introduced into nozzles at the front end and the side part of the drill bit through the rotary sealing shaft, the runner shaft and the runner in the drill bit.
Compared with the prior art, the device is suitable for tunneling a hard rock passage, the working medium is hard rock (f > 10), the drilling depth is shallower and is 50-100cm, the rock passage is required to be sealed, and the rock breaking efficiency is high; the device for reversing is realized by a pull ring with a mechanical structure, specifically, the pull ring is pulled to control the grinding liquid to flow out from the front nozzle or the side jet to complete reversing, and the structure is positioned outside a working area, so that the operation is simple and reliable; the rubber ring and the reverse extrusion ring are adopted as a reverse sealing device, and the greater the working pressure in a rock passage is, the greater the deformation degree of a sealing ring is, and the more reliable the sealing is; the high-pressure abrasive not only assists jet drilling during drilling, but also is used for cutting and fracturing, so that the integration of drilling, cutting and fracturing is truly realized, and intermediate links are reduced; the number of the used nozzles is small, the working flow is small, the working pressure is large, and the rock breaking efficiency is high; the rock is crushed once, the angle of the rock crack is 45-90 degrees through the side nozzle, and the whole rock is convenient to crush. In conclusion, the invention fully utilizes the characteristics of strong capability of cutting rock by high-pressure abrasive jet flow, nonresistance of hard rock mass and the like, realizes an integrated operation mode of drilling, slitting and fracturing of the hard rock mass, has the advantages of strong capability of crushing hard rock mass, high efficiency, low dust yield and the like, and has a promotion effect on the mechanized development of hard rock tunnels (tunnels). The adopted high-pressure abrasive jet can not only crush rocks, but also effectively inhibit dust generated by rock crushing, improve the working condition of mechanically developing hard rock bodies, and realize the mechanized efficient excavation of the hard rock bodies of tunnels or tunnels. Meanwhile, the tunnel excavation cost is reduced, the safety and high-efficiency development of energy resources are improved, and the method has important social significance for sustainable development of mines in China.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a full cross-sectional view of one embodiment of the present invention.
Fig. 2 is a cross-sectional view of an output shaft in an embodiment of the invention.
Fig. 3 is a cross-sectional view of a drill bit in an embodiment of the present invention.
Fig. 4-1 is a cross-sectional view of a flow path shaft in an embodiment of the invention.
Fig. 4-2 is a top view of a flow path shaft in an embodiment of the invention.
Fig. 5-1 is a cross-sectional view of a rotary seal shaft in an embodiment of the invention.
Fig. 5-2 are top views of rotary seal shafts in embodiments of the present invention.
Figure 6 is a cross-sectional view of a rotary seal cartridge in an embodiment of the invention.
Fig. 7 is a cross-sectional view of a drill rod in an embodiment of the invention.
In the figure: 1. the device comprises an oil cylinder supporting seat, 2, a thrust cylinder, 2-1, a thrust cylinder piston rod, 3, a guide rail, 4, an O-shaped sealing ring, 5, a rotary driving device, 5-1, a motor, 5-2, a gear I, 5-3, a shell, 5-4, an output shaft, 5-4-1, a key slot I, 5-4-2, a through hole I, 5-4-3, a cylindrical boss I, 5-4-4, a long key slot, 5-5, a cover plate II, 5-6, a gear II, 5-7, a cover plate I, 6, a rubber ring, 7, a reverse extrusion ring, 8, a drill rod, 8-1, an internal thread groove I, 8-2, an internal thread groove II, 8-3, a through hole II, 9, a drill bit, 9-1, a groove, 9-2 and a front nozzle flow passage, 9-3, front nozzle sub-channel, 9-4, nozzle, 9-4-1, front nozzle, 9-4-2, side nozzle, 9-5, side nozzle sub-channel, 9-6, side nozzle channel, 9-7, mechanical pick, 10, channel shaft, 10-1, internal thread groove III, 10-2, central water channel, 10-3, abrasive liquid outlet, 10-4, static seal ring groove I, 10-5, key slot II, 11, rotary seal shaft, 11-1, T-shaped water channel, 11-2, cylindrical boss II, 11-3, pull ring, 12, rotary seal sleeve, 12-1, through hole section I, 12-2, static seal ring groove II, 12-3, abrasive liquid input port, 12-4, through hole section II.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Fig. 1 to 7 show a schematic structural view of a preferred embodiment of the present invention, and a device for fracturing a hard rock drilling kerf in fig. 1 comprises a cylinder support base 1, a thrust cylinder 2, a guide rail 3, an O-ring 4, a rotary driving device 5, a rubber ring 6, a reverse extrusion ring 7, a drill rod 8, a drill bit 9, a runner shaft 10, a rotary sealing shaft 11 and a rotary sealing sleeve 12. The oil cylinder supporting seat 1 is fixed at the rear end of the guide rail 3, the rotary driving device 5 is connected with the guide rail 3 in a sliding way, the pushing oil cylinder 2 is fixed on the oil cylinder supporting seat 1 through bolts and nuts, the pushing oil cylinder piston rod 2-1 is connected with the rotary driving device 5, and the process of advancing or retreating of the rotary driving device 5 on the guide rail 3 is controlled through the expansion and contraction of the pushing oil cylinder piston rod 2-1. The rotary sealing shaft 11 passes through the rotary sealing sleeve 12 and is connected with the runner shaft 10 through threads, and the static seal at the matching position of the rotary sealing shaft 11 and the rotary sealing sleeve 12 adopts an O-shaped sealing ring 4.
Referring to fig. 2, the rotary driving device 5 is composed of a motor 5-1, a gear i 5-2, a shell 5-3, an output shaft 5-4, a cover plate ii 5-5, a gear ii 5-6 and a cover plate i 5-7, wherein the cover plate i 5-7 and the cover plate ii 5-5 are respectively arranged at two ends of the rotary driving device 5, the output shafts of the two motors 5-1 fixed on the cover plate i 5-7 are connected with the gear i 5-2 through keys, the gear ii 5-6 is connected on the output shaft 5-4 through keys and meshed with the gear i 5-2, the two motors 5-1 turn the same, the output shaft 5-4 is jointly driven to rotate, torque power and rotary motion are sequentially transmitted to the drill bit 9 through the output shaft 5-4 and the drill rod 8, and then the drill bit 9 can be driven to break by matching with the extension of the piston rod 2-1 of the thrust cylinder. The rotary sealing sleeve 12 is fixed on the cover plate I5-7, and the rubber ring 6 is fixed at the front end of the cover plate II 5-5. The inner diameter of the rubber ring 6 is larger than the outer diameter of the output shaft 5-4 before deformation, when the rubber ring 6 is extruded by the reverse extrusion ring 7, the rubber ring 6 can deform to enable the rock hole to be in a complete sealing state only when the extrusion force is larger than a certain value, and the sealing performance of the rubber ring 6 is also enhanced along with the increase of the pressure in the rock passage. The front end of an output shaft 5-4 of the rotary driving device 5 is provided with a cylindrical boss I5-4-3, the cylindrical boss I5-4-3 is provided with external threads, the rear end of the output shaft 5-4 is provided with a circular ring structure, a key groove I5-4-1 is machined on the circular ring structure, a gear II 5-6 is connected to the key groove I5-4-1 through a key, the inside of the output shaft 5-4 is provided with a hollow through hole I5-4-2, the rear end of the through hole I5-4-2 is provided with a long key groove 5-4-4, a runner shaft 10 in the output shaft 5-4 is connected with the output shaft 5-4 through a key, and the runner shaft 5-4 and the output shaft 5-4 slide relatively.
Referring to fig. 6, an abrasive liquid input port 12-3 is disposed on an outer circle of a rear end of the rotary seal sleeve 12, the abrasive liquid input port 12-3 is communicated with a through hole section ii 12-4 inside the rotary seal sleeve 12, a through hole section i 12-1 with a small diameter is disposed at a front end and a rear end of the through hole section ii 12-4, and a static seal ring groove ii 12-2 is processed on the through hole section i 12-1.
Referring to fig. 5-1 and 5-2, the front end of the rotary sealing shaft 11 is a cylindrical boss ii 11-2 with external threads, a T-shaped water channel 11-1 is machined in the front end, and during the forward and backward movement of the rotary sealing shaft 11, the inlet of the T-shaped water channel 11-1 is always communicated with the abrasive liquid inlet 12-3, and a pull ring 11-3 is fixed at the rear end of the rotary sealing shaft 11.
Referring to fig. 7, the drill rod 8 is internally provided with a hollow through hole ii 8-3, and an internal thread groove i 8-1 and an internal thread groove ii 8-2 are respectively processed at the front end and the rear end of the drill rod 8; the external thread on the cylindrical boss I5-4-3 of the output shaft 5-4 is matched with the internal thread groove I8-1.
Referring to fig. 3, the rear end of the drill bit 9 is an outer ring with a groove 9-1, an external thread machined on the outer ring is matched and connected with an internal thread groove ii 8-2 at the front end of the drill rod 8, the groove 9-1 is matched with the front end of the runner shaft 10, and an O-shaped sealing ring 4 is adopted for static sealing at the matched position; a front nozzle runner 9-2 and a side nozzle runner 9-6 are respectively arranged in the drill bit 9 and are respectively connected with the front nozzle runner 9-3 and the side nozzle runner 9-5, the front ends of the front nozzle runner 9-3 and the side nozzle runner 9-5 are respectively provided with a front nozzle 9-4-1 and a side nozzle 9-4-2, and the side nozzle 9-4-2 is inclined backwards and forms an included angle of 45-90 degrees with the drill rod 8; the front end of the drill bit 9 is also provided with a plurality of mechanical picks 9-7, and the mechanical picks 9-7 are alternately arranged with the front nozzles 9-4-1.
Referring to fig. 4-1 and 4-2, the flow channel shaft 10 is generally T-shaped, a central water channel 10-2 is arranged in the flow channel shaft, a grinding fluid outlet 10-3 is formed at a position of the central water channel 10-2 near the front end, and the central water channel 10-2 is respectively communicated with the front nozzle flow channel 9-2 and the side nozzle flow channel 9-6 through the front and back movement of the flow channel shaft 10; the rear end of the runner shaft 10 is internally provided with an internal thread groove III 10-1, external threads on a cylindrical boss II 11-2 of the rotary sealing shaft 11 are matched with the internal thread groove III 10-1, the outer circular ring structure at the rear end of the runner shaft 10 is provided with a key groove II 10-5, the runner shaft 10 and the output shaft 5-4 are in key connection at the key groove II 10-5, and the front end outer circular ring of the runner shaft 10 and the front side and the rear side of the abrasive liquid outlet 10-3 are provided with static seal ring mounting grooves I10-4.
Working principle: when the hard rock drilling, slitting and fracturing integrated device is used for breaking rock, the hydraulic pump system in the roadway provides oil with certain pressure for the propulsion cylinder 2, so that the propulsion cylinder piston rod 2-1 has thrust and linear speed, and the thrust and linear speed of the propulsion cylinder piston rod 2-1 are transmitted to the drill bit 9 through the rotary driving device 5 and the drill rod 8, so that the mechanical cutting pick 9-7 on the drill bit 9 extrudes the rock. The torque and rotational speed of the output shaft 5-4 is transmitted through the drill rod 8 to the drill bit 9, causing the mechanical picks 9-7 on the drill bit 9 to spin cutting the rock. During the process of drilling and cutting rock by the drill bit 9, the central water channel 10-2 is communicated with the front nozzle runner 9-2, high-pressure grinding fluid is input from the grinding fluid input port 12-3, and sequentially flows through the T-shaped water channel 11-1, the central water channel 10-2, the front nozzle runner 9-2 and the front nozzle sub-runner 9-3. Finally, the high-pressure abrasive jet auxiliary drilling is realized by being ejected from the front nozzle 9-4-1. The drill bit 9 drills a certain distance (50-100 cm) and connects the central water channel 10-2 with the side nozzle flow channels 9-6 through the pull ring 11-3, so that the high-pressure grinding fluid is ejected from the side nozzles 9-4-2, and only the drill bit 9 is rotated in the rockAnnular cracks are generated around the hole. After drilling and cutting are completed, high-pressure abrasive liquid injection is continued, the high-pressure abrasive liquid pushes the reverse extrusion ring 7 to extrude the rubber ring 6, when the pressure reaches a certain value, the rubber ring 6 expands to seal a rock path, and annular cutting (angle of rock gap) formed by high-pressure abrasive liquid fracturing is injected into the rock holeAnd 45-90 DEG) to fracture the whole rock.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present invention falls within the scope of the present invention.
Claims (6)
1. A hard rock drilling, slitting and fracturing integrated device is characterized in that: the device mainly comprises an oil cylinder supporting seat (1), a thrust oil cylinder (2), a guide rail (3), a rotary driving device, a rubber ring (6), a reverse extrusion ring (7), a drill rod (8), a drill bit (9), a runner shaft (10), a rotary sealing shaft (11) and a rotary sealing sleeve (12);
the rotary extrusion device is characterized in that the oil cylinder supporting seat (1) is fixed at the rear end of the guide rail (3), the rotary driving device is connected with the guide rail (3) in a sliding manner, the pushing oil cylinder (2) is fixed on the oil cylinder supporting seat (1), the piston rod (2-1) of the pushing oil cylinder is connected with the rotary driving device, the front end of the output shaft (5-4) of the rotary driving device is detachably connected with the rear end of the drill rod (8), the front end of the drill rod (8) is detachably connected with the rear end of the drill bit (9), the runner shaft (10) arranged in the output shaft (5-4) and the drill rod (8) is connected with the rear end of the drill bit (9) in a matched manner, the rotary sealing sleeve (12) is fixed at the rear end of the rotary driving device, the rotary sealing shaft (11) penetrates through the rotary sealing sleeve (12) to be connected with the runner shaft (10), and the rubber ring (6) is fixed at the front end of the rotary driving device and is connected with the reverse extrusion ring (7); high-pressure abrasive input from an abrasive liquid input port (12-3) at the side part of the rotary sealing sleeve (12) is respectively introduced into nozzles at the front end and the side part of the drill bit (9) through a rotary sealing shaft (11), a runner shaft (10) and a runner in the drill bit (9);
the rotary driving device consists of a motor (5-1), a gear I (5-2), a shell (5-3), an output shaft (5-4), a cover plate II (5-5), a gear II (5-6) and a cover plate I (5-7), wherein the cover plate I (5-7) and the cover plate II (5-5) are respectively arranged at two ends of the rotary driving device, the output shafts of the two motors (5-1) fixed on the cover plate I (5-7) are connected with the gear I (5-2) through keys, the gear II (5-6) is connected on the output shaft (5-4) through keys and meshed with the gear I (5-2), and the two motors (5-1) are identical in steering and jointly drive the output shaft (5-4) to rotate; the rotary sealing sleeve (12) is fixed on the cover plate I (5-7), and the rubber ring (6) is fixed at the front end of the cover plate II (5-5);
an abrasive liquid input port (12-3) is arranged on the outer circle of the rear end of the rotary sealing sleeve (12), the abrasive liquid input port (12-3) is communicated with a through hole section II (12-4) in the rotary sealing sleeve (12), the front end and the rear end of the through hole section II (12-4) are through hole sections I (12-1) with small diameters, and a static sealing ring groove II (12-2) is formed in the through hole section I (12-1);
the sealing parts of the rotary sealing shaft (11) and the rotary sealing sleeve (12) and the connecting positions of the runner shaft (10) and the drill bit (9) are O-shaped sealing rings (4).
2. A rigid rock drilling kerf fracturing integrated apparatus as claimed in claim 1 wherein: the front end of an output shaft (5-4) of the rotary driving device is provided with a cylindrical boss I (5-4-3), an external thread is arranged on the cylindrical boss I (5-4-3), the rear end of the output shaft (5-4) is provided with a circular ring structure, a key groove I (5-4-1) is machined on the circular ring structure, a gear II (5-6) is connected to the key groove I (5-4-1) through a key, the inside of the output shaft (5-4) is provided with a hollow through hole I (5-4-2), a long key groove (5-4-4) is machined at the rear end of the through hole I (5-4-2), and a runner shaft (10) inside the output shaft (5-4) is connected with the output shaft (5-4) through the long key groove (5-4-4) in a key manner and slides relative to the output shaft (5-4).
3. A rigid rock drilling kerf fracturing integrated apparatus as claimed in claim 1 wherein: the front end of the rotary sealing shaft (11) is provided with a cylindrical boss II (11-2) with external threads, a T-shaped water channel (11-1) is formed in the front end of the rotary sealing shaft, an inlet of the T-shaped water channel (11-1) is always communicated with an abrasive liquid inlet (12-3) in the process of moving the rotary sealing shaft (11) back and forth, and a pull ring (11-3) is fixed at the rear end of the rotary sealing shaft (11).
4. A rigid rock drilling kerf fracturing integrated apparatus as claimed in claim 2 wherein: the inside of the drill rod (8) is provided with a hollow through hole II (8-3), and an internal thread groove I (8-1) and an internal thread groove II (8-2) are respectively processed at the front end and the rear end of the drill rod (8); the external thread on the cylindrical boss I (5-4-3) of the output shaft (5-4) is matched with the internal thread groove I (8-1).
5. A rigid rock drilling lancing fracturing integrated apparatus according to claim 4 wherein: the rear end of the drill bit (9) is an outer ring with a groove (9-1), external threads machined on the outer ring are matched and connected with an internal thread groove II (8-2) at the front end of the drill rod (8), and the groove (9-1) is matched with the front end of the runner shaft (10); a front nozzle runner (9-2) and a side nozzle runner (9-6) are respectively arranged in the drill bit (9), are respectively connected with the front nozzle runner (9-3) and the side nozzle runner (9-5), the front ends of the front nozzle runner (9-3) and the side nozzle runner (9-5) are respectively provided with a front nozzle (9-4-1) and a side nozzle (9-4-2), and the side nozzle (9-4-2) is inclined backwards and forms an included angle of 45-90 degrees with the drill rod (8); the front end of the drill bit (9) is also alternately provided with a plurality of mechanical picks (9-7).
6. A rigid rock drilling lancing fracturing integrated apparatus according to claim 5 wherein: the flow passage shaft (10) is of a T shape, a central water passage (10-2) is arranged in the flow passage shaft, a grinding fluid outlet (10-3) is formed in the position, close to the front end, of the central water passage (10-2), and the central water passage (10-2) is communicated with the front nozzle flow passage (9-2) and the side nozzle flow passage (9-6) respectively through the front-back movement of the flow passage shaft (10); an inner thread groove III (10-1) is formed in the rear end of the runner shaft (10), an outer thread on a cylindrical boss II of the rotary sealing shaft (11) is matched with the inner thread groove III (10-1), a key groove II (10-5) is formed in the outer ring structure of the rear end of the runner shaft (10), the runner shaft (10) and the output shaft (5-4) are in key connection at the key groove II (10-5), and static seal ring grooves I (10-4) are formed in the outer ring of the front end of the runner shaft (10) and in the front side and the rear side of the abrasive liquid outlet (10-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515544.6A CN109538183B (en) | 2018-12-12 | 2018-12-12 | Drilling, slitting and fracturing integrated device for hard rock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811515544.6A CN109538183B (en) | 2018-12-12 | 2018-12-12 | Drilling, slitting and fracturing integrated device for hard rock |
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| Publication Number | Publication Date |
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| CN109538183A CN109538183A (en) | 2019-03-29 |
| CN109538183B true CN109538183B (en) | 2023-10-27 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110056363B (en) * | 2019-04-19 | 2020-06-02 | 中国矿业大学 | Hard rock tunnel boring machine with actively rotating hob |
| CN112196521B (en) * | 2019-06-19 | 2023-11-28 | 中国石油天然气股份有限公司 | Multi-dimensional monitoring device for fracture morphology of horizontal well |
| CN111042792B (en) * | 2020-01-13 | 2021-01-15 | 煤科集团沈阳研究院有限公司 | Deep drilling longitudinal joint cutting device and method |
| CN114893182B (en) * | 2022-04-26 | 2023-02-03 | 中南大学 | Mechanical mining equipment and process based on hard rock hole array mutation fracture modification |
| CN115306298A (en) * | 2022-07-26 | 2022-11-08 | 张挺哲 | Coal face end suspended ceiling processing device |
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