CN115234186A - Combined core drilling machine and working method thereof - Google Patents
Combined core drilling machine and working method thereof Download PDFInfo
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- CN115234186A CN115234186A CN202210968478.8A CN202210968478A CN115234186A CN 115234186 A CN115234186 A CN 115234186A CN 202210968478 A CN202210968478 A CN 202210968478A CN 115234186 A CN115234186 A CN 115234186A
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- 238000005553 drilling Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 241000251131 Sphyrna Species 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Classifications
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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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/18—Pipes provided with plural fluid passages
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
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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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a combined core drill, which combines a down-the-hole hammer, a secondary drill rod and a secondary drill bit, realizes quick drilling through the down-the-hole hammer, realizes core taking through the secondary drill rod and the secondary drill bit, realizes the alternate execution of quick drilling and core taking, and meets the requirement of long-distance sectional core taking. When the down-the-hole hammer is used for rapid drilling, high-pressure medium enters the face through a down-the-hole hammer medium channel on the down-the-hole hammer and a central channel II on the secondary drill rod, and then the high-pressure medium carries muck to enter a slag discharging channel through a reverse circulation channel, so that reverse circulation slag discharging can be realized. The invention also provides a working method of the combined core drilling machine, which solves the engineering problems of low rock breaking efficiency, poor positioning and orientation precision, easy hole collapse and drill sticking in long-distance drilling and the like, and ensures that long-distance horizontal drilling and core taking are safer and more efficient.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a combined core drilling machine and a working method thereof.
Background
During the construction process of tunnel engineering, before a tunnel is excavated, the geological rock stratum condition of a section where the tunnel is located needs to be explored first, so that geological information along the line can be comprehensively and accurately mastered.
In the prior art, a point is usually taken on the ground along the extending direction of the tunnel, a single core drill is taken to obtain a core sample of the stratum, and the geological condition of the tunnel is obtained through analysis of the core sample. However, for long-distance geological working conditions, the rock conditions of different horizontal distances need to be known, a single core drilling machine cannot meet the construction requirements, and for large burial depth and extreme composite geological working conditions, the construction efficiency is low, the difficulty is large, and the cost is high.
In view of the above, there is a need for a combined core drill and a method of operating the same to solve the problems of the prior art.
Disclosure of Invention
The invention aims to provide a combined core drill, aiming at solving the defects of a single core drill when coring is carried out in the face of long-distance geological working conditions, and the specific technical scheme is as follows:
a combined core drill comprises a down-the-hole hammer, a secondary drill rod, a double-wall drill rod, a first rotary propulsion assembly and a second rotary propulsion assembly, wherein two ends of the double-wall drill rod are respectively connected with the down-the-hole hammer and the first rotary propulsion assembly, the middle parts of the double-wall drill rod and the down-the-hole hammer are respectively provided with a hollow channel and a central channel I which penetrate through the length direction of the double-wall drill rod and the down-the-hole hammer, and the double-wall drill rod is provided with a medium conveying channel for providing a high-pressure medium for the down-the-hole hammer;
the second-stage drill rod sequentially and movably penetrates through the first rotary pushing assembly, the hollow channel and the first central channel, and the second-stage drill rod sequentially forms a slag discharge channel with the inner wall of the first central channel, the inner wall of the hollow channel and the first rotary pushing assembly; the front end of the second-stage drill rod is provided with a second-stage drill bit which is movably arranged in the first central channel, and the rear end of the second-stage drill rod is connected with a second rotary propelling component; the middle part of the secondary drill rod is provided with a second central channel penetrating through the length direction of the secondary drill rod, and the secondary drill bit is communicated with the second central channel and the first central channel at the front end of the secondary drill bit; the central channel II is used for placing a coring device or introducing a high-pressure medium;
the hammer head of the down-the-hole hammer is provided with a reverse circulation channel on the peripheral side of the central channel I, and the reverse circulation channel is communicated with a slag discharge channel at the rear end of the secondary drill bit.
Preferably, in the above technical solution, when the secondary drill bit is at the initial position, a gap between the secondary drill bit and the first inner wall of the central passage is smaller than a gap between the secondary drill rod and the first inner wall of the central passage.
Preferably in the above technical scheme, the first central channel comprises a small inner diameter section and a large inner diameter section located at the rear end of the small inner diameter section, the second-stage drill bit is movably arranged in the small inner diameter section, a slag discharge channel is formed between the inner wall of the large inner diameter section and the second-stage drill rod, and the reverse circulation channel is communicated with the large inner diameter section.
Preferably, in the above technical scheme, the double-wall drill rod comprises a drill rod outer tube and a drill rod inner tube which are coaxially arranged, the drill rod inner tube is arranged inside the drill rod outer tube, and a medium conveying channel is formed between the drill rod inner tube and the drill rod outer tube; the medium conveying channel is communicated with a down-the-hole hammer medium channel on the down-the-hole hammer.
Preferably, in the above technical solution, the first rotary propulsion assembly includes a first propulsion device and a first drive device;
the first driving device comprises a box body base, a large gear, a transmission shaft and a first rotary driving assembly, the box body base is connected with the movable end of the first propelling device, the rotating shaft is rotatably arranged on the box body base, the large gear is fixedly sleeved on the transmission shaft, and the first rotary driving assembly is arranged on the box body base and the rotating end of the first rotary driving assembly is meshed with the large gear;
the front end of the transmission shaft is connected with the double-wall drill rod through a rotary joint, and a medium input channel communicated with the medium conveying channel is arranged on the rotary joint;
and a slag discharge channel is formed among the secondary drill rod, the inner wall of the hollow channel, the inner hole wall of the rotary joint and the inner hole wall of the transmission shaft in sequence.
Preferably, in the above technical solution, the first rotary propulsion assembly further comprises a slag discharging bin body arranged on the base of the box body, the slag discharging bin body is arranged at the rear end of the transmission shaft, the slag discharging bin body is communicated with the slag discharging channel, and the slag discharging bin body is provided with a slag outlet; the second-stage drill rod movably penetrates through the slag discharging bin body.
Preferably, in the above technical solution, the first propulsion device includes a propulsion driving element and a frame, the frame is provided with a guide rail, and the propulsion driving element is used for driving the box body base to move on the guide rail; the front end of the rack is provided with a pipe replacing device for clamping the double-wall drill pipe.
Preferably, in the above technical solution, the second rotary propulsion assembly includes a second driving device and a second propulsion device, the second stage drill rod is connected with a rotation end of the second driving device, the second driving device is disposed on the second propulsion device, and a gripper for gripping the second stage drill rod is disposed at a front end of the second propulsion device.
Preferably, in the above technical scheme, an inclinometer is arranged at the rear end of the coring device; and a winch is arranged behind the second rotary propelling component and used for pulling the coring device and the inclinometer to exit from the central channel II.
The invention also provides a working method of the combined core drilling machine, which comprises the following steps:
a down-the-hole hammer rapid drilling mode:
the first rotary propulsion assembly drives the down-the-hole hammer to rotate and propel, and the down-the-hole hammer impacts the face under the driving of a high-pressure medium to realize drilling; at the moment, the second-stage drill rod is introduced with a high-pressure medium, the second rotary propulsion assembly drives the second-stage drill rod and the second-stage drill bit to keep relative rest with the down-the-hole hammer, and the second-stage drill bit is in an initial position; at the moment, the high-pressure medium enters the face from a down-the-hole hammer medium channel and a central channel II on the down-the-hole hammer, and then the high-pressure medium carries the muck to be discharged through a reverse circulation channel and a slag discharge channel;
secondary drilling coring mode:
the down-the-hole hammer stops working, the coring device and the inclinometer are sent to the designated position at the front end of the secondary drill rod, the second rotary propulsion device propels the secondary drill bit to be in contact with the face of the tunnel, and the inclinometer performs track measurement for the first time in the process;
the second rotary propulsion device drives the second-stage drill bit to rotate and propel so as to complete coring operation;
and the winch pulls the coring device and the inclinometer to withdraw from the central channel II to finish the taking back of the core sample, and the inclinometer performs track measurement once in the process.
The technical scheme of the invention has the following beneficial effects:
the combined core drill disclosed by the invention combines the down-the-hole hammer, the secondary drill rod and the secondary drill bit, realizes rapid drilling through the down-the-hole hammer, realizes core taking through the secondary drill rod and the secondary drill bit, realizes the alternate performance of rapid drilling and core taking, and meets the requirement of long-distance sectional core taking. When the down-the-hole hammer is used for rapid drilling, high-pressure medium enters the face through a down-the-hole hammer medium channel on the down-the-hole hammer and a central channel II on the secondary drill rod, and then the high-pressure medium carries muck to enter a slag discharging channel through a reverse circulation channel, so that reverse circulation slag discharging can be realized.
The path measurement is carried out through the inclinometer, so that the drilling path of the drilling machine can be obtained, and the function of guiding the drilling is achieved; the combined core drill provided by the invention solves the engineering problems of low rock breaking efficiency, poor positioning and orientation precision, easy hole collapse and drill clamping in long-distance drilling and the like, and ensures that long-distance horizontal drilling and core taking are safer and more efficient.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of the overall construction of a combination coring drill;
FIG. 2 is a schematic of the structure between the secondary drill pipe and the coring device;
FIG. 3 is a schematic of the arrangement between the down-the-hole hammer and a double-walled drill pipe;
FIG. 4 is a schematic view of a first driving device;
FIG. 5 is a view showing the structural relationship among the second driving unit, the second propelling unit and the winding machine;
FIG. 6 is a schematic of the arrangement between the down-the-hole hammer and the secondary drill pipe;
the device comprises a down-the-hole hammer 1, a down-the-hole hammer 2, a secondary drill rod 3, a pipe replacing device 4, a coring device 5, an inclinometer 6, a double-wall drill rod 7, a rack 8, a drilling machine chassis 9, a first propelling device 10, a rotary joint 11, a first driving device 12, a slag discharging cabin 13, a second driving device 14, a second propelling device 15, a steel wire rope 16, a winch 17, a secondary drill bit 18 and a clamp;
1-1 part of a down-the-hole hammer medium channel, 1-2 parts of a central channel I, 1-3 parts of a reverse circulation channel, 1-4 parts of a hammer head, 2-1 parts of a central channel II, 6-1 part of a drill rod outer tube, 6-2 parts of a drill rod inner tube, 6-3 parts of a medium conveying channel, 10-1 part of a medium input channel, 11-1 part of a box body base, 11-2 parts of a speed reducer, 11-3 parts of a hydraulic motor, 11-4 parts of a large gear, 11-5 parts of a transmission shaft, 13-1 part of a chuck, 13-2 part of a second rotary driving assembly.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1:
referring to fig. 1-6, a combined core drill rig comprises a down-the-hole hammer 1, a secondary drill rod 2, a double-wall drill rod 6, a first rotary propulsion assembly and a second rotary propulsion assembly, wherein two ends of the double-wall drill rod 6 are respectively connected with the down-the-hole hammer 1 and the first rotary propulsion assembly, the middle parts of the double-wall drill rod 6 and the down-the-hole hammer 1 are respectively provided with a hollow channel and a central channel 1-2 which run through the length direction of the double-wall drill rod 6 and the down-the-hole hammer 1, and the double-wall drill rod 6 is provided with a medium conveying channel 6-3 for providing a high-pressure medium for the down-the hammer 1;
the second-stage drill rod 2 sequentially and movably penetrates through the first rotary pushing assembly, the hollow channel and the first rotary pushing assembly 1-2, and the second-stage drill rod 2 sequentially forms a slag discharging channel together with the inner wall of the first rotary pushing assembly 1-2, the inner wall of the hollow channel and the first rotary pushing assembly; the front end of the secondary drill rod 2 is provided with a secondary drill bit 17, the secondary drill bit 17 is movably arranged in the central channel I1-2, and the rear end of the secondary drill rod 2 is connected with a second rotary propulsion assembly; the middle part of the secondary drill rod 2 is provided with a central channel II 2-1 which penetrates through the length direction of the secondary drill rod, and the secondary drill bit 17 is communicated with the central channel II 2-1 and the central channel I1-2 at the front end of the secondary drill bit 17 (namely, the secondary drill bit is of a hollow structure); the central channel II 2-1 is used for placing the coring device 4 or introducing a high-pressure medium; specifically, when the down-the-hole hammer drills, a high-pressure medium is introduced into the central channel II; when coring operation is carried out, the coring device 4 is placed in the central channel II, as shown in figure 2;
referring to fig. 6, the hammer head 1-4 of the down-the-hole hammer 1 is provided with a reverse circulation channel 1-3 on the periphery of the central channel 1-2, and the reverse circulation channel 1-3 is communicated with a slag discharge channel at the rear end of the secondary drill bit 17.
When the secondary drill bit 17 is at the initial position, the clearance between the secondary drill bit 17 and the inner wall of the first central channel 1-2 is smaller than the clearance between the secondary drill rod 2 and the inner wall of the first central channel 1-2. The purpose of the arrangement is to prevent high-pressure medium sent into the central channel I1-2 by the secondary drill rod from flowing into the slag discharge channel and prevent the high-pressure medium from influencing the slag discharge effect. The initial position is shown in fig. 6 and refers to the position before the secondary drill bit is advanced.
In this embodiment, preferably, the first central passage 1-2 includes a small inner diameter section and a large inner diameter section located at the rear end of the small inner diameter section, the second-stage drill bit 17 is movably disposed in the small inner diameter section, a slag discharge passage is formed between the inner wall of the large inner diameter section and the second-stage drill rod 2, and the reverse circulation passage 1-3 is communicated with the large inner diameter section. In this arrangement, the outer diameter of the secondary drill bit and the secondary drill rod may be set to be the same or slightly different, but it should be noted that the inner diameter of the small inner diameter section should be larger than the outer diameter of the secondary drill rod to ensure smooth advance of the secondary drill rod and the secondary drill bit.
In some embodiments, it is possible to design the outer diameter of the secondary drill larger than the outer diameter of the secondary drill, and the first central channel 1-2 may be of equal inner diameter, so that the clearance between the secondary drill and the first central channel is smaller than that between the secondary drill and the first central channel, and it should be noted that the arrangement also requires that the communication point of the reverse circulation channel 1-3 and the slag discharge channel should be located behind the initial position of the secondary drill.
Referring to fig. 3, the double-wall drill rod 6 comprises a drill rod outer pipe 6-1 and a drill rod inner pipe 6-2 which are coaxially arranged, both the drill rod outer pipe and the drill rod inner pipe are hollow pipes, the drill rod inner pipe 6-2 is arranged inside the drill rod outer pipe 6-1, a medium conveying channel 6-3 is formed between the drill rod outer pipe and the drill rod inner pipe, and the inside of the drill rod inner pipe 6-2 is a hollow channel; the medium conveying channel 6-3 is communicated with a down-the-hole hammer medium channel 1-1 on the down-the-hole hammer 1, and the down-the-hole hammer 1 is connected with a double-wall drill rod through threads.
When the down-the-hole hammer 1 drills, high-pressure medium enters the face through the down-the-hole hammer medium channel 1-1 and the central channel 2-1, and the high-pressure medium carries dregs and is discharged through the reverse circulation channel 1-3 and the slag discharge channel. Specifically, referring to the prior art, the down-the-hole hammer is specifically structured such that a high-pressure medium enters the down-the-hole hammer through a down-the-hole hammer medium channel on the down-the-hole hammer 1, so that the down-the-hole hammer is driven to impact, and meanwhile, the high-pressure medium enters a tunnel face.
In this embodiment, the high-pressure medium is high-pressure air or high-pressure water, and in this embodiment, high-pressure air is preferred. As can be understood by those skilled in the art, the high-pressure air is compressed air and can be provided by an air compressor or a high-pressure air pump, and the specific pressure value can be selected according to the requirement; the high-pressure water can be provided by a high-pressure water pump, and the specific pressure value can be selected according to the requirement.
With reference to fig. 1 and 4, the first rotary propulsion assembly comprises a first propulsion device 9 and a first drive device 11, the first drive device being connected to the double-walled drill pipe by means of a swivel; specifically, the first driving device 11 comprises a box body base 11-1, a large gear 11-4, a transmission shaft 11-5 and a first rotary driving assembly, the box body base 11-1 is connected with the movable end of the first propelling device, the rotating shaft 11-5 is rotatably arranged on the box body base 11-1, the large gear 11-4 is fixedly sleeved on the transmission shaft 11-5, the transmission shaft and the large gear are both positioned in the box body base, and the first rotary driving assembly is arranged on the box body base 11-1 and the rotating end of the first rotary driving assembly is meshed with the large gear 11-4; preferably, the first rotary driving assembly comprises a speed reducer 11-2 and a hydraulic motor 11-3, the speed reducer is connected with the output end of the hydraulic motor, and the output end of the speed reducer is provided with a pinion gear meshed with a gearwheel.
Further, the front end of the transmission shaft 11-5 is connected with the double-wall drill rod 6 through a rotary joint 10, the double-wall drill rod 6 is connected with the rotary joint 10 through threads, a medium input channel 10-1 communicated with the medium conveying channel 6-3 is arranged on the rotary joint 10, and the medium input channel 10-1 is connected with a high-pressure medium output source, so that high-pressure medium is provided for the down-the-hole hammer.
Specifically, the second-stage drill rod penetrates through the rotary joint and the transmission shaft, and a slag discharge channel is formed between the second-stage drill rod 2 and the inner wall of the hollow channel, the inner hole wall of the rotary joint 10 and the inner hole wall of the transmission shaft 11-5 in sequence.
Further, the first rotary propulsion assembly further comprises a slag discharging bin body 12 arranged on the box body base 11-1, the slag discharging bin body 12 is arranged at the rear end of the transmission shaft 11-5, the slag discharging bin body 12 is communicated with a slag discharging channel, a slag discharging hole is formed in the slag discharging bin body 12, and slag soil enters the slag discharging bin body after passing through the slag discharging channel and then is discharged; the second-stage drill rod 2 movably penetrates through the slag discharging cabin body 12, namely, the second-stage drill rod and the slag discharging cabin body can rotate relatively, the second-stage drill rod can move along the axis direction of the second-stage drill rod relative to the slag discharging cabin body, and the second-stage drill rod can rotate and be pushed.
Referring to fig. 1, the first propelling device 9 includes a propelling driving element and a frame 7, the frame 7 is provided with a guide rail, the movable end of the propelling driving element is connected with the box body base, the fixed end of the propelling driving element is connected with the frame, and the propelling driving element is used for driving the box body base 11-1 to move on the guide rail; the propulsion driving piece is preferably an oil cylinder or an air cylinder; the front end of the rack 7 is provided with a pipe replacing device 3 for clamping a double-wall drill pipe, and the specific structure of the pipe replacing device refers to the prior art, such as a clamp; through tube changing device centre gripping double-walled drilling rod, first rotary driving subassembly drive swivel joint is rotatory, can realize that the threaded connection between double-walled drilling rod and the swivel joint screws up or unscrews, perhaps screws up or unscrews the threaded connection between the adjacent double-walled drilling rod to can realize increasing, reducing double-walled drilling rod, realize long distance and creep into.
Referring to fig. 5, the second rotary propulsion assembly comprises a second driving device 13 and a second propulsion device 14, the second drill rod is connected with a rotating end of the second driving device, and the second driving device 13 is arranged on the second propulsion device 14; specifically, the second driving device comprises a chuck 13-1 and a second rotary driving assembly 13-2, the structural composition of the second rotary driving assembly is the same as that of the first rotary driving assembly, the chuck is connected with the output end of the speed reducer, the second-stage drill rod is clamped and fixed through the chuck and penetrates through the chuck and the speed reducer, namely, the second-stage drill rod extends out of the outer end of the speed reducer; and a high-pressure medium is connected to the end part of the secondary drill rod, or the coring device is placed into the central channel II 2-1.
The second propelling device adopts a combination form of a chain wheel, a chain and a motor, and the specific structure arrangement mode refers to the prior art; in addition to this, a structure in accordance with the first propulsion device may also be employed; the front end of the second propelling device 14 is provided with a clamp 18 for clamping the second-stage drill rods 2, adjacent second-stage drill rods are in threaded connection, and the second-stage drill rods can be increased or decreased through the matching of the clamp and the second rotary driving assembly, so that long-distance drilling is realized.
Preferably, the rear end of the coring device 4 is provided with an inclinometer 5, which is referred to in the prior art.
And a winch 16 is arranged behind the second rotary propelling component, and the winch 16 is used for pulling the coring device 4 and the inclinometer 5 to exit from the central channel II 2-1. In actual setting, a fishing device is arranged at the rear end of the inclinometer and connected with the steel wire rope 15, and the coring device, the inclinometer and the fishing device are pulled out from the central channel II together by winding the steel wire rope by a winch. Specifically, the coring device and the inclinometer (and the fishing device) are fed to the front end of the central channel II through high-pressure water or high-pressure gas, and the coring device acquires a core sample at a specified position.
Preferably, the combined core drilling machine further comprises a drilling machine chassis 8, and the drilling machine chassis 8 is a supporting piece of the whole machine; the frame 7, the second propelling device 14 and the winch are all arranged on the drilling machine chassis 8.
The embodiment also provides a working method of the combined coring drilling machine, which comprises the following steps:
a down-the-hole hammer rapid drilling mode:
the first rotary propulsion assembly drives the down-the-hole hammer to rotate and propel, and the down-the-hole hammer impacts the face under the driving of a high-pressure medium to realize drilling; at the moment, the second-stage drill rod is introduced with a high-pressure medium, the second rotary propulsion assembly drives the second-stage drill rod and the second-stage drill bit to keep relative rest with the down-the-hole hammer, and the second-stage drill bit is in an initial position; at the moment, the high-pressure medium enters the face from a down-the-hole hammer medium channel and a central channel II on the down-the-hole hammer, and then the high-pressure medium carries the muck to be discharged through a reverse circulation channel and a slag discharge channel;
secondary drilling coring mode:
the down-the-hole hammer stops working, the coring device and the inclinometer are sent to the designated position at the front end of the secondary drill rod (after the coring device and the inclinometer are placed in the central channel II, high-pressure water or high-pressure gas is fed into the central channel II to drive the coring device and the inclinometer to move to the designated position), the secondary drill bit is pushed by the second rotary pushing device to be in contact with the tunnel face (namely the secondary drill bit is pushed out from the central channel I), and the inclinometer performs track measurement for one time in the process;
the second rotary propulsion device drives the secondary drill bit to rotate and propel so as to complete coring operation;
and the winch pulls the coring device and the inclinometer to withdraw from the central channel II to finish the taking back of the core sample, and the inclinometer performs track measurement once in the process.
The complex geology long-distance segmented efficient coring is realized by alternately circulating a down-the-hole hammer rapid drilling mode and a secondary drilling coring mode; the inclinometer is used for measuring the inclination angle and the azimuth angle of the well, then the drilling track is calculated, and whether the actual drilling direction is consistent with the preset direction or not can be confirmed by measuring the track through the inclinometer.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The combined core drill is characterized by comprising a down-the-hole hammer (1), a secondary drill rod (2), a double-wall drill rod (6), a first rotary propulsion assembly and a second rotary propulsion assembly, wherein two ends of the double-wall drill rod (6) are respectively connected with the down-the-hole hammer (1) and the first rotary propulsion assembly, hollow channels and central channels I (1-2) which penetrate through the double-wall drill rod (6) and the down-the-hole hammer (1) in the length direction are respectively arranged in the middle of the double-wall drill rod (6) and the down-the-hole hammer (1), and medium conveying channels (6-3) for providing high-pressure media for the down-the-hole hammer (1) are arranged on the double-wall drill rod (6);
the second-stage drill rod (2) sequentially and movably penetrates through the first rotary pushing assembly, the hollow channel and the first central channel (1-2), and the second-stage drill rod (2) sequentially forms a slag discharge channel with the inner wall of the first central channel (1-2), the inner wall of the hollow channel and the first rotary pushing assembly; a secondary drill bit (17) is arranged at the front end of the secondary drill rod (2), the secondary drill bit (17) is movably arranged in the central channel I (1-2), and the rear end of the secondary drill rod (2) is connected with a second rotary propelling component; the middle part of the secondary drill rod (2) is provided with a second central channel (2-1) penetrating through the length direction of the secondary drill rod, and the secondary drill bit (17) is communicated with the second central channel (2-1) and the first central channel (1-2) at the front end of the secondary drill bit (17); the central channel II (2-1) is used for placing a coring device (4) or introducing a high-pressure medium;
the down-the-hole hammer is characterized in that reverse circulation channels (1-3) are arranged on the hammer heads (1-4) of the down-the-hole hammer (1) on the peripheral sides of the central channels (1-2), and the reverse circulation channels (1-3) are communicated with a slag discharge channel at the rear end of the secondary drill bit (17).
2. The combined core drilling machine as recited in claim 1, characterized in that the clearance between the secondary drill bit (17) and the inner wall of the first central channel (1-2) is smaller than the clearance between the secondary drill rod (2) and the inner wall of the first central channel (1-2) when the secondary drill bit (17) is in the initial position.
3. The combined core drilling machine as recited in claim 2, characterized in that the first central channel (1-2) comprises a small inner diameter section and a large inner diameter section positioned at the rear end of the small inner diameter section, the second-stage drill bit (17) is movably arranged in the small inner diameter section, a slag discharge channel is formed between the inner wall of the large inner diameter section and the second-stage drill rod (2), and the reverse circulation channel (1-3) is communicated with the large inner diameter section.
4. The combined core drilling machine as recited in claim 1, characterized in that the double-walled drill rod (6) comprises an outer drill rod pipe (6-1) and an inner drill rod pipe (6-2) which are coaxially arranged, the inner drill rod pipe (6-2) being arranged inside the outer drill rod pipe (6-1) and forming a medium conveying channel (6-3) therebetween; the medium conveying channel (6-3) is communicated with a down-the-hole hammer medium channel (1-1) on the down-the-hole hammer (1).
5. The combined coring drill of claim 1, wherein the first rotary advancement assembly comprises a first advancement device (9) and a first drive device (11);
the first driving device (11) comprises a box body base (11-1), a large gear (11-4), a transmission shaft (11-5) and a first rotary driving assembly, the box body base (11-1) is connected with the movable end of the first propelling device, the rotating shaft (11-5) is rotatably arranged on the box body base (11-1), the large gear (11-4) is fixedly sleeved on the transmission shaft (11-5), and the first rotary driving assembly is arranged on the box body base (11-1) and the rotating end of the first rotary driving assembly is meshed with the large gear (11-4);
the front end of the transmission shaft (11-5) is connected with the double-wall drill rod (6) through a rotary joint (10), and a medium input channel (10-1) communicated with the medium conveying channel (6-3) is arranged on the rotary joint (10);
and a slag discharge channel is formed among the secondary drill rod (2), the inner wall of the hollow channel, the inner hole wall of the rotary joint (10) and the inner hole wall of the transmission shaft (11-5) in sequence.
6. The combined core drilling machine as recited in claim 5, wherein said first rotary propulsion assembly further comprises a slag tap bin body (12) disposed on the bin base (11-1), said slag tap bin body (12) is disposed at the rear end of the transmission shaft (11-5), said slag tap bin body (12) is communicated with a slag discharge channel, and a slag discharge hole is disposed on the slag tap bin body (12); the second-stage drill rod (2) movably penetrates through the slag discharging bin body (12).
7. The combined core drilling machine as recited in claim 5, characterized in that said first propulsion device (9) comprises a propulsion drive and a frame (7), said frame (7) being provided with a guide rail, said propulsion drive being adapted to drive the box base (11-1) to move on the guide rail; the front end of the frame (7) is provided with a pipe replacing device (3) for clamping the double-wall drill pipe (6).
8. Combined core drill rig according to any of claims 1-7, characterized in that the second rotary propulsion assembly comprises a second drive means (13) and a second propulsion means (14), the secondary drill rod being connected to the turning end of the second drive means and the second drive means (13) being arranged on the second propulsion means (14), the front end of the second propulsion means (14) being provided with a gripper (18) for gripping the secondary drill rod (2).
9. Combined core drilling machine according to any of claims 1-7, characterized in that the rear end of the coring device (4) is provided with an inclinometer (5); and a winch (16) is arranged behind the second rotary propelling component, and the winch (16) is used for pulling the coring device (4) and the inclinometer (5) to exit from the central channel II (2-1).
10. A method of operating a combination coring drill as set forth in any one of claims 1-9, wherein:
a down-the-hole hammer rapid drilling mode:
the first rotary propulsion assembly drives the down-the-hole hammer to rotate and propel, and the down-the-hole hammer impacts the face under the driving of a high-pressure medium to realize drilling; at the moment, the second-stage drill rod is introduced with a high-pressure medium, the second rotary propulsion assembly drives the second-stage drill rod and the second-stage drill bit to keep relative rest with the down-the-hole hammer, and the second-stage drill bit is in an initial position; at the moment, the high-pressure medium enters the face from a down-the-hole hammer medium channel and a central channel II on the down-the-hole hammer, and then the high-pressure medium carries the muck to be discharged through a reverse circulation channel and a slag discharge channel;
secondary drilling coring mode:
the down-the-hole hammer stops working, the coring device and the inclinometer are sent to the designated position at the front end of the secondary drill rod, the second rotary propulsion device propels the secondary drill bit to be in contact with the face of the tunnel, and the inclinometer performs track measurement for the first time in the process;
the second rotary propulsion device drives the secondary drill bit to rotate and propel so as to complete coring operation;
and the winch pulls the coring device and the inclinometer to withdraw from the central channel II to finish the taking back of the core sample, and the inclinometer performs track measurement once in the process.
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| CN202210968478.8A CN115234186B (en) | 2022-08-12 | 2022-08-12 | Combined coring drilling machine and working method thereof |
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| CN202210968478.8A CN115234186B (en) | 2022-08-12 | 2022-08-12 | Combined coring drilling machine and working method thereof |
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| CN115234186B CN115234186B (en) | 2024-02-27 |
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Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046920U (en) * | 1989-04-14 | 1989-11-01 | 李任年 | Gas lift counter-circulating simple drill |
| CN2048509U (en) * | 1988-11-16 | 1989-11-29 | 长春地质学院 | Hollow pneumatic cable core-taking hammer |
| CN101158266A (en) * | 2007-11-15 | 2008-04-09 | 吉林大学 | Hollow hammer hole bottom strong suction apparatus |
| CN101319598A (en) * | 2008-07-22 | 2008-12-10 | 吉林大学 | Hole bottom annular spacing strong suction device of through type down-the-hole hammer |
| CN101519959A (en) * | 2009-04-07 | 2009-09-02 | 铁道第三勘察设计院集团有限公司 | Drilling touching shocking integrative prospecting instrument and use method thereof |
| CN102606070A (en) * | 2012-04-05 | 2012-07-25 | 黄河勘测规划设计有限公司 | Combined drilling technique of vegetable gum diamond coring and downhole hammer casing drilling |
| CN103244051A (en) * | 2013-05-11 | 2013-08-14 | 重庆卓典建设工程有限公司 | Combined down-hole hammer drilling tool and pile forming construction method thereof |
| CN103397847A (en) * | 2013-07-08 | 2013-11-20 | 吉林大学 | Rapid ice layer air drilling reverse-circulation continuous coring drill bit |
| CN104632073A (en) * | 2013-11-07 | 2015-05-20 | 大连市勘察测绘研究院有限公司 | Reverse circulation drilling method of hollow down-hole hammer |
| CN204691658U (en) * | 2015-02-26 | 2015-10-07 | 徐州徐工基础工程机械有限公司 | rotary drilling rig down-hole hammer construction special working device |
| CN105041200A (en) * | 2015-08-05 | 2015-11-11 | 重庆市地质矿产勘查开发局208水文地质工程地质队 | Down-the-hole impact cone |
| CN105401879A (en) * | 2015-12-03 | 2016-03-16 | 山河智能装备股份有限公司 | Rotary drilling machine for reverse-circulation pneumatic down hole hammer and construction method for rotary drilling machine |
| CN205805469U (en) * | 2016-06-24 | 2016-12-14 | 湖北工程学院 | A kind of wire line coring screw shaft formula coring with local inverse circulation drilling tool |
| CN206785305U (en) * | 2017-04-06 | 2017-12-22 | 深圳市嘉景丰建筑工程有限公司 | A kind of hollow hammer hole reacting cycle continuous sampling rig |
| CN107816326A (en) * | 2017-10-23 | 2018-03-20 | 西华大学 | A kind of double-walled counterflush drilling instrument |
| CN211648174U (en) * | 2020-03-05 | 2020-10-09 | 中国铁建重工集团股份有限公司 | Bidirectional circulating pipeline type composite slag discharging system for coring |
| CN112943133A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core drill bit using compressed air as conveying medium and scouring medium |
| CN112943136A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core taking mechanism and core taking method |
| AU2021106774A4 (en) * | 2021-08-19 | 2021-11-18 | Boart Longyear Company | Dual tube drill string components |
| CN114016896A (en) * | 2021-12-16 | 2022-02-08 | 长沙黑金刚实业有限公司 | Reverse circulation impactor and system |
| US20220412176A1 (en) * | 2019-11-27 | 2022-12-29 | Flexidrill Limited | Improvement relating to drill rods |
-
2022
- 2022-08-12 CN CN202210968478.8A patent/CN115234186B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048509U (en) * | 1988-11-16 | 1989-11-29 | 长春地质学院 | Hollow pneumatic cable core-taking hammer |
| CN2046920U (en) * | 1989-04-14 | 1989-11-01 | 李任年 | Gas lift counter-circulating simple drill |
| CN101158266A (en) * | 2007-11-15 | 2008-04-09 | 吉林大学 | Hollow hammer hole bottom strong suction apparatus |
| CN101319598A (en) * | 2008-07-22 | 2008-12-10 | 吉林大学 | Hole bottom annular spacing strong suction device of through type down-the-hole hammer |
| CN101519959A (en) * | 2009-04-07 | 2009-09-02 | 铁道第三勘察设计院集团有限公司 | Drilling touching shocking integrative prospecting instrument and use method thereof |
| CN102606070A (en) * | 2012-04-05 | 2012-07-25 | 黄河勘测规划设计有限公司 | Combined drilling technique of vegetable gum diamond coring and downhole hammer casing drilling |
| CN103244051A (en) * | 2013-05-11 | 2013-08-14 | 重庆卓典建设工程有限公司 | Combined down-hole hammer drilling tool and pile forming construction method thereof |
| CN103397847A (en) * | 2013-07-08 | 2013-11-20 | 吉林大学 | Rapid ice layer air drilling reverse-circulation continuous coring drill bit |
| CN104632073A (en) * | 2013-11-07 | 2015-05-20 | 大连市勘察测绘研究院有限公司 | Reverse circulation drilling method of hollow down-hole hammer |
| CN204691658U (en) * | 2015-02-26 | 2015-10-07 | 徐州徐工基础工程机械有限公司 | rotary drilling rig down-hole hammer construction special working device |
| CN105041200A (en) * | 2015-08-05 | 2015-11-11 | 重庆市地质矿产勘查开发局208水文地质工程地质队 | Down-the-hole impact cone |
| CN105401879A (en) * | 2015-12-03 | 2016-03-16 | 山河智能装备股份有限公司 | Rotary drilling machine for reverse-circulation pneumatic down hole hammer and construction method for rotary drilling machine |
| CN205805469U (en) * | 2016-06-24 | 2016-12-14 | 湖北工程学院 | A kind of wire line coring screw shaft formula coring with local inverse circulation drilling tool |
| CN206785305U (en) * | 2017-04-06 | 2017-12-22 | 深圳市嘉景丰建筑工程有限公司 | A kind of hollow hammer hole reacting cycle continuous sampling rig |
| CN107816326A (en) * | 2017-10-23 | 2018-03-20 | 西华大学 | A kind of double-walled counterflush drilling instrument |
| US20220412176A1 (en) * | 2019-11-27 | 2022-12-29 | Flexidrill Limited | Improvement relating to drill rods |
| CN211648174U (en) * | 2020-03-05 | 2020-10-09 | 中国铁建重工集团股份有限公司 | Bidirectional circulating pipeline type composite slag discharging system for coring |
| CN112943133A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core drill bit using compressed air as conveying medium and scouring medium |
| CN112943136A (en) * | 2021-02-20 | 2021-06-11 | 中国铁建重工集团股份有限公司 | Core taking mechanism and core taking method |
| AU2021106774A4 (en) * | 2021-08-19 | 2021-11-18 | Boart Longyear Company | Dual tube drill string components |
| CN114016896A (en) * | 2021-12-16 | 2022-02-08 | 长沙黑金刚实业有限公司 | Reverse circulation impactor and system |
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| CN115234186B (en) | 2024-02-27 |
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