CN113846972B - Reaming device and reaming method - Google Patents
Reaming device and reaming method Download PDFInfo
- Publication number
- CN113846972B CN113846972B CN202111244787.2A CN202111244787A CN113846972B CN 113846972 B CN113846972 B CN 113846972B CN 202111244787 A CN202111244787 A CN 202111244787A CN 113846972 B CN113846972 B CN 113846972B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000008602 contraction Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 8
- 230000004308 accommodation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
- E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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)
- Earth Drilling (AREA)
Abstract
The invention discloses a reaming device and a reaming method, comprising an outer drilling cylinder, an inner drilling cylinder, a drilling feeding cylinder, a first drill bit and a reaming bit piece; the outer drill cylinder is coaxially and rotatably arranged in the drill feeding cylinder, and at least part of the drilling end of the outer drill cylinder is positioned at the outer side of the drill feeding cylinder; the first drill bit is arranged on the drilling end and is coaxially arranged with the drilling end; the inner drill cylinder is coaxially and rotatably connected in the outer drill cylinder, a drill cylinder moving part is arranged on the inner drill cylinder, and at least part of the drill cylinder moving part is positioned in the first drill bit; the first drill bit is provided with a containing hole, the reaming bit piece is slidably connected in the containing hole, and the drill cylinder moving part is connected with the reaming bit piece through the driving piece so as to drive the reaming bit piece to extend out of the containing hole. After the first drill bit of the reaming device drills, the reaming bit part can extend out through rotating the inner drilling cylinder, and reaming operation is carried out. The reaming device can drill holes and ream holes, and is convenient for operators to operate. The reaming method using the reaming device improves the operation efficiency.
Description
Technical Field
The invention relates to the technical field of reaming, in particular to a reaming device and a reaming method.
Background
The gob-side entry driving is to drive the roadway along the edge of the goaf or a very narrow coal pillar after the stoping of the working face of the upper section is stable, so that the roadway is arranged in a low stress field on one side close to the coal pillar, the roadway maintenance is facilitated, and the deformation is reduced. Because the roadway roof is mainly supported by the narrow coal pillar, the width of the coal pillar needs to be controlled in the process, and the supporting capacity of the narrow coal pillar is enhanced; based on the method, a space for anchoring the expansion lock head of the expansion lock type anchor cable can be drilled at a certain depth of the coal pillar by utilizing drilling and reaming equipment, so that the expansion lock type anchor cable is utilized to realize bidirectional reinforcement of coal pillar unilateral construction.
The prior reaming operation needs to drill holes by using a drilling device, and then reaming is carried out by using a reaming device. Therefore, the operation efficiency is low, and the operation of workers is inconvenient.
Based on the above technical problems, improvements are needed.
Disclosure of Invention
The technical scheme of the invention aims to provide the reaming device and the reaming method which are convenient to operate and improve the working efficiency.
The invention provides a reaming device, which comprises an outer drilling cylinder, an inner drilling cylinder, a drilling feeding cylinder, a first drill bit and a reaming bit piece; the outer drill cylinder is coaxially and rotatably arranged in the drill feeding cylinder, and at least part of the drilling end of the outer drill cylinder is positioned at the outer side of the drill feeding cylinder; the first drill bit is arranged on the drilling end and is coaxially arranged with the drilling end; the inner drill cylinder is coaxially and rotatably connected in the outer drill cylinder, a drill cylinder moving part is arranged on the inner drill cylinder, and at least part of the drill cylinder moving part is positioned in the first drill bit; the first drill bit is provided with an accommodating hole, the reaming bit piece is slidably connected in the accommodating hole, and the drill cylinder moving part is connected with the reaming bit piece through a driving piece so as to drive the reaming bit piece to extend to the outer side of the accommodating hole.
Further, a hinging seat and a telescopic piece are arranged in the outer drill barrel, and the inner drill barrel is hinged on the hinging seat; the telescopic piece is located at one side of the hinging seat far away from the drill cylinder moving part, and is hinged between the outer drill cylinder and the inner drill cylinder.
Further, the distance between the telescopic piece and the hinging seat is larger than the distance between the drill cylinder moving part and the hinging seat.
Further, the end part of the drill cylinder moving part is positioned at the outer side of the first drill bit, and a second drill bit is connected to the end part of the drill cylinder moving part.
Further, a drain hole is formed in the second drill bit.
Further, the reamer bit part comprises a reamer bit, a mounting seat and a pushing mechanism; the mounting seat is arranged in the accommodating hole, the reaming bit is slidably connected to the mounting seat, and the output end of the pushing mechanism is connected with the reaming bit; the driving piece is connected with the pushing mechanism so as to drive the pushing mechanism to push the reaming bit to slide.
Further, the pushing mechanism comprises an oil cylinder, the driving piece comprises an oil storage bag and an oil delivery pipe, the oil delivery pipe is connected between the oil cylinder and the oil storage bag, and the drill cylinder moving part is connected with the oil storage bag.
Further, the drill feeding barrel is provided with an expansion bag and a fracturing valve, and the fracturing valve supplies liquid through a liquid injection pipe; the expansion bag is supplied with liquid through an expansion liquid pipe so as to control the expansion and contraction of the expansion bag.
Further, the drill feeding barrel is provided with an adjusting assembly, the adjusting assembly comprises a mounting ring and an adjusting rod, the mounting ring is connected to the drill feeding barrel, and the adjusting rod is connected to the mounting ring to adjust the position of the drill feeding barrel.
The reaming method provided by the technical scheme of the invention comprises the step of reaming by adopting any one of the reaming devices, wherein the steps are as follows,
s01, a first drill bit is extended into a region to be reamed by the drill feeding cylinder;
s02, operating an inner drilling cylinder to rotate, wherein the inner drilling cylinder drives a reaming bit of the reaming bit part to extend out of the accommodating hole through a driving part;
s03: starting a reaming bit and reaming the reaming bit;
s04: closing the reamer bit, and driving the reamer bit to retract into the accommodating hole by the driving piece.
Further, the first drill bit extends into the region to be reamed,
s011: operating an expansion liquid pipe to control the expansion of an expansion bag, and sealing the area to be reamed by the expansion bag;
s012: operating a fracturing valve to inject hydraulic fracturing into an area to be reamed 。
By adopting the technical scheme, the method has the following beneficial effects:
the technical scheme of the invention provides a reaming device and a reaming method. The outer drill cylinder is coaxially and rotatably arranged in the drill feeding cylinder, and at least part of the drilling end of the outer drill cylinder is positioned on the outer side of the drill feeding cylinder. The first drill bit is arranged on the drilling end and is coaxially arranged with the drilling end. The inner drill cylinder is coaxially and rotatably connected in the outer drill cylinder, a drill cylinder moving part is arranged on the inner drill cylinder, and at least part of the drill cylinder moving part is positioned in the first drill bit. The first drill bit is provided with a containing hole, the reaming bit piece is slidably connected in the containing hole, and the drill cylinder moving part is connected with the reaming bit piece through the driving piece so as to drive the reaming bit piece to extend out of the containing hole. After the first drill bit of the reaming device drills, the reaming bit part can extend out through rotating the inner drilling cylinder, and reaming operation is carried out. The reaming device can drill holes and ream holes, and is convenient for operators to operate. The reaming method using the reaming device improves the operation efficiency.
Drawings
FIG. 1 is a schematic view of a reaming device according to an embodiment of the invention;
FIG. 2 is a partial schematic view of a reaming device according to an embodiment of the invention;
fig. 3 is a schematic view of a first drill bit and reamer bit assembly in accordance with an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
It is to be readily understood that, according to the technical solutions of the present invention, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present invention. Accordingly, the following detailed description and drawings are merely illustrative of the invention and are not intended to be exhaustive or to limit the invention to the precise form disclosed.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.
Referring to fig. 1-3, a reaming device 10 according to an embodiment of the present invention includes an outer drill pipe 1, an inner drill pipe 2, a drill pipe 3, a first drill bit 4, and a reamer bit 5.
The outer drill barrel 1 is coaxially and rotatably arranged in the drill feed barrel 3, and at least part of the drilling end 11 of the outer drill barrel 1 is located outside the drill feed barrel 3.
The first drill bit 4 is arranged on the drilling end 11 and coaxially with the drilling end 11.
The inner drill cylinder 2 is coaxially and rotatably connected in the outer drill cylinder 1, a drill cylinder moving part 21 is arranged on the inner drill cylinder 2, and at least part of the drill cylinder moving part 21 is positioned in the first drill bit 4.
The first drill 4 is provided with a receiving hole 41, and the reamer head member 5 is slidably connected in the receiving hole 41, and the drill drum movable portion 21 is connected with the reamer head member 5 through the driving member 6 to drive the reamer head member 5 to extend to the outside of the receiving hole 41.
Specifically, the reaming device 10 is used to enlarge the size of a drilled hole, particularly a coal pillar reamer. The reaming device 10 is comprised of a drill pipe element and a drill bit element. The drill barrel part comprises an outer drill barrel 1, an inner drill barrel 2 and a drill feeding barrel 3. The bit members include a first bit 4 and a reamer bit 5. The outer drill cylinder 1, the inner drill cylinder 2 and the drill feeding cylinder 3 are hollow cylinders. The outer drill cylinder 1 is positioned in the drill feeding cylinder 3, the inner drill cylinder 2 is positioned in the outer drill cylinder 1, and the drill feeding cylinder 3, the outer drill cylinder 1 and the inner drill cylinder 2 are coaxial. The outer drill barrel 1 is in clearance fit with the drill feed barrel 3 so as to be rotatable about an axis within the drill feed barrel 3. The inner drill pipe 2 is in clearance fit with the outer drill pipe 1, and the inner drill pipe 2 can swing left and right in the outer drill pipe 1 around a point on the inner drill pipe 2.
One end of the outer drill barrel 1 is a drilling end 11, and the first drill bit 4 is connected to the drilling end 11. The center of the swing of the inner drill drum 2 will atmosphere the inner drill drum 2 in two parts, wherein the part near the first drill bit 4 is the drill drum moving part 21. The drill barrel movable portion 21 extends to the outside of the drilling end 11 and into the first drill bit 4.
A receiving hole 41 is provided on a side wall of the first drill bit 4, and the reamer bit part 5 is slidably coupled in the receiving hole 41, which may be achieved by providing a slide rail or a slide groove so that a portion of the reamer bit part 5 can protrude to the outside of the receiving hole 41. A first cavity 42 communicating with the accommodation hole 41 is provided in the first drill bit 4, and a portion of the drill barrel movable portion 21 is located in the first cavity 42. A driving member 6 is connected between the drill drum movable portion 21 and the reamer head member 5, and the driving member 6 is used for driving the reamer head member 5 to slide.
When the reaming device 10 is in use, the outer drill pipe 1 rotates to drive the first drill bit 4 to rotate, and the first drill bit 4 drills holes on the wall surface. When the reamer bit 5 is positioned in the drilled hole, the inner drill cylinder 2 is controlled to swing while the drilled hole is drilled, the inner drill cylinder 2 swings to enable the drill cylinder movable part 21 to swing towards the direction close to the driving part 6, and the drill cylinder movable part 21 drives the driving part 6 to enable the driving part 6 to drive the reamer bit 5 to slide, and the reamer bit 51 of the reamer bit 5 stretches out of the accommodating hole 41. At this time, when the first drill 4 rotates, the reamer 51 also starts to work, and the size of the drilled hole is enlarged. The reaming device 10 thus arranged can perform both drilling and reaming operations simultaneously. The operation of the staff is convenient.
Alternatively, the driving member 6 comprises a driving seat fixed in the first cavity 42 and a driving rod slidably connected to the driving seat. One end of the driving rod is hinged with the drill cylinder movable part 21, and the other end is hinged with the reaming bit part 5. The drill drum moving part 21 moves to drive the driving rod to slide, and the driving rod drives the reaming bit part 5 to slide. Of course, the driving member 6 may have other structures, as long as the driving member can drive the reamer bit member 5 to slide.
In one embodiment, as shown in fig. 1-2, a hinge seat 12 and a telescopic member 13 are provided in the outer drill barrel 1, and the inner drill barrel 2 is hinged on the hinge seat 12. The telescopic piece 13 is positioned on one side of the hinging seat 12 away from the drill cylinder moving part 21, and the telescopic piece 13 is hinged between the outer drill cylinder 1 and the inner drill cylinder 2.
Specifically, the outer drill barrel 1 has an outer drill barrel through hole, and the hinge base 12 and the expansion piece 13 are located in the outer drill barrel through hole. Wherein the hinge seat 12 is closer to the first drill bit 4 than the telescopic member 13. The inner drill barrel 2 is hinged on the hinging seat 12, one end of the telescopic piece 13 is hinged on the inner drill barrel 2, and the other end is hinged on the hinging seat 12. The telescopic member 13 is telescopic, and can control the inner drill pipe 2 to rotate around the hinge base 12 by telescoping, thereby swinging the drill pipe movable portion 21. So set up, the activity of convenient control interior brill section of thick bamboo 2.
Optionally, a bracket is sleeved on the outer drill barrel 1, and the hinging seat 12 is connected to the bracket, so that the installation is convenient. It should be noted that the hinge base 12 is not universally hinged to the bracket.
Optionally, the telescopic piece 13 is a telescopic cylinder or a telescopic oil cylinder, so that the inner drill cylinder 2 is automatically and stably pushed to swing. The telescopic piece 13 comprises a cylinder body and a telescopic slide rod, and the telescopic slide rod is in sliding connection with the cylinder body.
In one embodiment, as shown in fig. 1-2, the distance between the telescopic member 13 and the hinge base 12 is greater than the distance between the drill drum movable portion 21 and the hinge base 12.
Specifically, the hinge seat 12 is located between the telescopic member 13 and the drill drum movable portion 21, and the distance between the telescopic member 13 and the hinge seat 12 is greater than the distance between the drill drum movable portion 21 and the telescopic member 13. The first acting force applied by the telescopic piece 13 to the inner drill drum 2 to push the inner drill drum 2 is transferred to the drill drum moving part 21 and is converted into the second acting force of the drill drum moving part 21 to drive the driving piece 6. According to the lever principle, since the distance between the telescopic member 13 and the hinge base 12 is greater than the distance between the drill drum moving portion 21 and the telescopic member 13, the second force is amplified. In this way, the telescopic element 13 obtains a second, greater force by providing a first, lesser force.
In one embodiment, as shown in fig. 1-2, the end of the drill drum moving part 21 is located outside the first drill bit 4, and the second drill bit 7 is connected to the end of the drill drum moving part 21.
In particular, the drill bit member further comprises a second drill bit 7. The end of the drill drum moving part 21 passes through the first cavity 42 and extends to the outer side of the first drill bit 4, and the second drill bit 7 is sleeved on the end of the drill drum moving part 21 and is coaxially arranged with the first drill bit 4. The diameter of the second drill bit 7 is smaller than the diameter of the first drill bit 4, and the second drill bit 7 is used for quick tapping. When the hole is formed, the outer drill cylinder 1 drives the inner drill cylinder 2 to rotate, and the inner drill cylinder 2 drives the second drill bit 7 to rotate. After the hole is drilled, the first drill 4 is drilled in its entirety for feeding the reamer head 5.
Alternatively, the first drill bit 4 and the second drill bit 7 are trapezoidal in cross section, so that rapid drilling can be performed.
Optionally, a spacer is arranged between the first drill bit 4 and the second drill bit 7, which spacer is connected to the first drill bit 4 and spaced apart from the second drill bit 7. So arranged, the second drill bit 7 is prevented from contacting the first drill bit 4.
In one embodiment, as shown in fig. 1-2, the second drill bit 7 is provided with a drain hole 71.
Specifically, a second cavity 72 is provided in the second drill bit 7, and a drain hole 71 is provided in the second drill bit 7, and the drain hole 71 communicates with the second cavity 72. When the second drill 7 performs the opening operation, the drain hole 71 discharges the liquid, and the second drill 7 is cooled, so that the impurities generated during the drilling can be discharged.
Optionally, a liquid draining device is disposed in the second cavity 72, and the liquid draining device has a liquid storage tank, a pump and a liquid outlet pipe, wherein the pump is connected between the liquid storage tank and the liquid storage pipe, and the liquid outlet pipe is communicated with the liquid draining hole 71.
In one embodiment, shown in fig. 2-3, reamer bit assembly 5 includes reamer bit 51, mount 52, and pushing mechanism 53. The mounting seat 52 is installed in the accommodation hole 41, the reamer bit 51 is slidably connected to the mounting seat 52, and the output end of the pushing mechanism 53 is connected to the reamer bit 51. The driving member 6 is connected to the pushing mechanism 53 to drive the pushing mechanism 53 to push the reamer head 51 to slide.
Specifically, reamer bit assembly 5 is comprised of reamer bit 51, mount 52 and pushing mechanism 53. The mounting base 52 is fixedly mounted in the receiving hole 41, and the reamer bit 51 is slidably connected to the mounting base 52, which may be realized by providing a slide rail or a slide groove in the mounting base 52. The pushing mechanism 53 has a trigger portion connected to the driver 6 and a pushing portion connected to the reamer bit 51. When the driver 6 activates the trigger, the pusher pushes the reamer bit 51 to slide.
Optionally, a sliding block 54 is disposed on the mounting seat 52, the sliding block 54 is slidably connected with a sliding rail or a sliding groove on the mounting seat 52, and the reamer bit 51 is mounted on the sliding block 54. This facilitates installation of reamer bit 51.
Alternatively, the pushing mechanism 53 is a push rod and a connecting frame, the connecting frame is connected to the mounting base 52, and the push rod is hinged to the connecting frame. One end of the push rod is connected to the driving member 6, and the other end is connected to the reamer bit 51. The driving member 6 drives the push rod to rotate, and the push rod drives the reamer bit 51 to slide.
In one embodiment, as shown in fig. 2-3, the pushing mechanism 53 includes an oil cylinder member, the driving member 6 includes an oil reservoir 61 and an oil delivery pipe 62, the oil delivery pipe 62 is connected between the oil cylinder member and the oil reservoir 61, and the drill pipe movable portion 21 is connected with the oil reservoir 61.
Specifically, the oil storage bag 61 is an annular bag, and the oil storage bag 61 is located in the first cavity 42 and is sleeved on the drill cylinder movable portion 21. One end of the oil delivery pipe 62 is connected to the oil reservoir 61, and the other end is connected to the cylinder member. When the drill cylinder movable part 21 swings, the drill cylinder movable part 21 presses the oil storage bag 61, oil in the oil storage bag 61 is conveyed into the oil cylinder member through the oil conveying pipe 62, and the oil cylinder member stretches to push the reaming bit 51.
Alternatively, the cylinder member includes a first link 531, a second link 532, and an input cylinder 533. The first link 531 is hinged to the mounting base 52 and the second link 532 is hinged between the reamer bit 51 and the first link 531. The input cylinder 533 includes a cylinder and a piston rod, the oil delivery pipe 62 is connected to the cylinder, one end of the piston rod is slidably connected to the cylinder, and the other end is hinged to the hinge of the first link 531 and the second link 532.
In one embodiment, as shown in fig. 1-2, the drill pipe 3 is provided with an expansion bag 31 and a fracturing valve 32, and the fracturing valve 32 is supplied with liquid through a liquid injection pipe 33. The inflation bladder 31 is supplied with fluid through an inflation fluid tube 34 to control inflation and deflation of the inflation bladder 31.
Specifically, the expansion bag 31 is an annular bag, and is sleeved outside the drill feeding barrel 3, and the expansion bag 31 can be expanded and contracted. The fracturing valve 32 is used for fracturing operation, and is used for extruding the wall of a drilled hole to generate cracks, so that the reaming operation of the reaming bit 51 is facilitated. The frac valve 32 is of the prior art and the specific structure is not described in detail. An expansion liquid pipe 34 and a liquid injection pipe 33 are arranged in the drill feeding barrel 3. An inflation fluid tube 34 is connected to the inflation bladder 31, and inflation and deflation of the inflation bladder 31 can be controlled by injecting fluid and recovering fluid through the inflation fluid tube 34. The injection pipe 33 is connected to the fracturing valve 32.
Before the reaming bit 51 is used for reaming, the expansion liquid pipe 34 is used for controlling the expansion of the expansion bag 31, so that the area to be reamed is sealed, then the fracturing valve 32 fractures the area, so that cracks are generated in the hole wall, and the reaming bit 51 is convenient for reaming operation.
In one embodiment, as shown in fig. 1-2, the drill feed drum 3 is provided with an adjustment assembly 8, the adjustment assembly 8 includes a mounting ring 81 and an adjustment lever, the mounting ring 81 is connected to the drill feed drum 3, and the adjustment lever is connected to the mounting ring 81 to adjust the position of the drill feed drum 3.
Specifically, the installation ring 81 is sleeved on the drill feeding barrel 3, the adjusting rod piece comprises two supporting rods 82 and telescopic rods 83, the two supporting rods 82 are symmetrically arranged, and the two telescopic rods 83 are also symmetrically arranged. The two support rods 82 are connected to two telescopic rods 83, respectively. Two support plates 84 are arranged on the drill feeding barrel 3, the support rods 82 are hinged to the corresponding support plates 84, one ends of the telescopic rods 83 are hinged to the mounting rings 81, the other ends of the telescopic rods are hinged to one ends of the support rods 82, and the other ends of the support rods 82 are support ends.
During drilling, the supporting end of the supporting rod 82 contacts with the hole wall, and the position of the drill feeding barrel 3 is controlled by the extension and shortening of the two telescopic rods 83.
The reaming method provided by the technical scheme of the invention comprises the step of reaming by adopting any one of the reaming devices 10, and the steps are as follows.
And S01, the drill feeding barrel 3 stretches the first drill bit 4 into the region to be reamed.
S02, the inner drill cylinder 2 is operated to rotate, and the inner drill cylinder 2 drives the reamer bit 51 of the reamer bit 5 to extend out of the accommodating hole 41 through the driving member 6.
S03: the reamer bit 51 is started, and the reamer bit 51 performs reaming operation.
S04: the reamer bit 51 is closed, and the driver 6 drives the reamer bit 51 to retract into the accommodation hole 41.
The specific structure and function of the reaming device 10 are described above and will not be described in detail.
As shown in fig. 1 to 3, the step of reaming by using the reaming device 10 is specifically as follows, in which the outer drill pipe 1 rotates to drive the first drill bit 4 and the inner drill pipe 2 to rotate, and the inner drill pipe 2 drives the second drill bit 7 to rotate. During drilling, the second drill bit 7 firstly opens holes in the area to be drilled, and then gradually drills. The first drill 4 then performs drilling, and the size of the drilling is primarily enlarged. After the reamer head 51 is positioned in the borehole, the inner drill drum 2 is operated to rotate, and the drill drum movable portion 21 is swung. The driver 6 then drives the reamer bit 51 to slide, so that the reamer bit 51 protrudes out of the accommodating hole 41. The first drill bit 4 then rotates the reamer bit 51, further enlarging the size of the drilled hole. After the reaming is finished, the inner drilling cylinder 2 is operated to reversely rotate, and the driving piece 6 drives the reaming bit 51 to reset. The reaming method using the reaming device 10 can also perform reaming while drilling, thereby improving the operation efficiency.
In one embodiment, as shown in fig. 1-3, the first drill bit 4 further includes, after extending into the region to be reamed, S011: the inflation fluid tube 34 is operated to control the inflation of the inflation bladder 31, and the inflation bladder 31 seals the region to be reamed. S012: the fracturing valve 32 is operated to hydraulically fracture the region to be reamed.
Specifically, the expansion bladder 31 is operated to expand and seal the borehole prior to reaming with the reamer head 51. The frac valve 32 is then operated to frac the area to be reamed. This makes it easier for reamer bit 51 to enlarge the borehole.
In summary, the present invention discloses a reaming device 10 and a reaming method, comprising an outer drill pipe 1, an inner drill pipe 2, a first drill 4, a drill pipe 3 and a reaming bit 5. The outer drill barrel 1 is coaxially and rotatably arranged in the drill feed barrel 3, and at least part of the drilling end 11 of the outer drill barrel 1 is located outside the drill feed barrel 3. The first drill bit 4 is arranged on the drilling end 11 and coaxially with the drilling end 11. The inner drill cylinder 2 is coaxially and rotatably connected in the outer drill cylinder 1, a drill cylinder moving part 21 is arranged on the inner drill cylinder 2, and at least part of the drill cylinder moving part 21 is positioned in the first drill bit 4. The first drill 4 is provided with a receiving hole 41, and the reamer head member 5 is slidably connected in the receiving hole 41, and the drill drum movable portion 21 is connected with the reamer head member 5 through the driving member 6 to drive the reamer head member 5 to extend to the outside of the receiving hole 41. After the first drill 4 of the reaming device 10 drills, the inner drill pipe 2 is rotated to extend the reamer head 5, thereby performing a reaming operation. The reaming device 10 can drill holes and ream holes, and is convenient for operators to operate. The reaming method using the reaming device 10 improves the operation efficiency.
The above technical schemes can be combined according to the need to achieve the best technical effect.
The foregoing is only illustrative of the principles and preferred embodiments of the present invention. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the invention and should also be considered as the scope of protection of the present invention.
Claims (10)
1. The reaming device is characterized by comprising an outer drilling cylinder, an inner drilling cylinder, a drilling feeding cylinder, a first drill bit and a reaming bit piece;
the outer drill cylinder is coaxially and rotatably arranged in the drill feeding cylinder, and at least part of the drilling end of the outer drill cylinder is positioned at the outer side of the drill feeding cylinder;
the first drill bit is arranged on the drilling end and is coaxially arranged with the drilling end;
the inner drill cylinder is coaxially and rotatably connected in the outer drill cylinder, a drill cylinder moving part is arranged on the inner drill cylinder, and at least part of the drill cylinder moving part is positioned in the first drill bit;
the first drill bit is provided with an accommodating hole, the reaming bit piece is slidably connected in the accommodating hole, and the drill cylinder moving part is connected with the reaming bit piece through a driving piece so as to drive the reaming bit piece to extend out of the accommodating hole;
a hinge seat and a telescopic piece are arranged in the outer drill cylinder, and the inner drill cylinder is hinged on the hinge seat; the telescopic piece is located at one side of the hinging seat far away from the drill cylinder moving part, and is hinged between the outer drill cylinder and the inner drill cylinder.
2. The reaming device of claim 1, wherein a distance between the telescoping member and the hinge seat is greater than a distance between the drill pipe movable portion and the hinge seat.
3. The reaming device of claim 1, wherein an end of the drill pipe moving portion is located outside of the first drill bit, and a second drill bit is connected to the end of the drill pipe moving portion.
4. A reaming device according to claim 3, wherein the second drill bit is provided with a drainage hole.
5. The reaming device of claim 1, wherein the reamer bit assembly comprises a reamer bit, a mount, and a pushing mechanism;
the mounting seat is arranged in the accommodating hole, the reaming bit is slidably connected to the mounting seat, and the output end of the pushing mechanism is connected with the reaming bit;
the driving piece is connected with the pushing mechanism so as to drive the pushing mechanism to push the reaming bit to slide.
6. The reaming device of claim 5, wherein the pushing mechanism comprises an oil cylinder, the driving member comprises an oil reservoir and an oil delivery pipe, the oil delivery pipe is connected between the oil cylinder and the oil reservoir, and the drill pipe moving portion is connected with the oil reservoir.
7. The reaming device of claim 1, wherein the drill pipe is provided with an expansion bladder and a fracturing valve, the fracturing valve being supplied with fluid through a fluid injection tube;
the expansion bag is supplied with liquid through an expansion liquid pipe so as to control the expansion and contraction of the expansion bag.
8. The reaming device of claim 1, wherein the drill feed cartridge is provided with an adjustment assembly comprising a collar coupled to the drill feed cartridge and an adjustment rod coupled to the collar for adjusting the position of the drill feed cartridge.
9. A reaming method comprising the step of reaming by using the reaming device according to any one of claims 1 to 8, said step being as follows,
s01, a first drill bit is extended into a region to be reamed by the drill feeding cylinder;
s02, operating an inner drilling cylinder to rotate, wherein the inner drilling cylinder drives a reaming bit of the reaming bit part to extend out of the accommodating hole through a driving part;
s03: starting a reaming bit and reaming the reaming bit;
s04: closing the reamer bit, and driving the reamer bit to retract into the accommodating hole by the driving piece.
10. The reaming method of claim 9, wherein the first drill bit extends into the region to be reamed further comprises,
s011: operating an expansion liquid pipe to control the expansion of an expansion bag, and sealing the area to be reamed by the expansion bag;
s012: and operating a fracturing valve to perform hydraulic fracturing on the region to be reamed.
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| CN116749355B (en) * | 2023-05-30 | 2025-10-14 | 福建省昊立建设工程有限公司 | Protective drilling equipment for ancient building exploration |
| CN118166865B (en) * | 2024-05-09 | 2024-07-19 | 厦门赛茵泰科工程研究院有限公司 | A disconnect-type excavation mechanism for excavating plateau frozen soil |
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