CN112746813B - Telescopic drill rod and multifunctional telescopic high-pressure rotary jet drilling machine - Google Patents
Telescopic drill rod and multifunctional telescopic high-pressure rotary jet drilling machine Download PDFInfo
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- CN112746813B CN112746813B CN201911044233.0A CN201911044233A CN112746813B CN 112746813 B CN112746813 B CN 112746813B CN 201911044233 A CN201911044233 A CN 201911044233A CN 112746813 B CN112746813 B CN 112746813B
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- joint
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- 238000005553 drilling Methods 0.000 title claims abstract description 80
- 238000002347 injection Methods 0.000 claims abstract description 135
- 239000007924 injection Substances 0.000 claims abstract description 135
- 239000007788 liquid Substances 0.000 claims abstract description 134
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 238000005507 spraying Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 14
- 239000002689 soil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 10
- 239000011435 rock Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000009527 percussion Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21B7/04—Directional drilling
-
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- 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
- E21B19/02—Rod or cable suspensions
-
- 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
- E21B4/02—Fluid rotary type drives
-
- 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
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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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 telescopic drill rod and a multifunctional telescopic high-pressure rotary jet drilling machine, wherein the telescopic drill rod comprises a plurality of layers of drill rod sections sleeved in sequence from inside to outside, the upper end of the innermost layer of drill rod section (22) of the telescopic drill rod is connected with a rotary interface tap (16) and a lifting connecting piece (17), the innermost layer of drill rod section (22) of the telescopic drill rod is internally sleeved with a liquid injection pipeline (24) and a gas injection pipeline (25), the rotary interface tap (16) comprises a tap mandrel (161) and a tap shell (162) which are internally sleeved with the outer sleeve, the tap mandrel (161) can rotate relative to the tap shell (162), and the rotary interface tap (16) is provided with a liquid injection interface (163) and a gas injection interface (164). The multifunctional telescopic high-pressure rotary jet drilling machine adopts the telescopic drill rod, can greatly increase the construction depth, and has the advantages of reliable construction quality, high construction efficiency, low construction cost and the like.
Description
Technical Field
The invention relates to the field of geotechnical engineering construction machinery, in particular to a telescopic drill rod or a multifunctional telescopic high-pressure rotary spraying drilling machine.
Background
The artificial filling soil has the deepest thickness of several tens of meters, and the stratum is characterized in that:
1. When foundation piles are constructed on stratum of the type of riprap sea-filling land and mountain-opening land, the foundation piles need to penetrate through a huge thick filling layer to enter an undisturbed soil layer to a certain depth, and foundation strata need to be embedded into pile ends in a region with larger fluctuation of foundation strata, so that the pile length can reach about 60m-80m, and even longer;
2. under the artificial sea-filling riprap layer in the eastern coast, there is a deep silt layer which is in a plastic state and has a maximum depth of more than 50 meters.
The conventional jet grouting pile process comprises a double pipe method and a triple pipe method, wherein a small-sized drilling machine is generally adopted for the double pipe, a connecting rod mode is adopted for drilling, the length of a single section of a drill rod is less than 2.0m, the single section of the drill rod is drilled by connecting rods section by section during the drilling, and the rod is detached section by section during the lifting stage for lifting and grouting; the triple pipe generally adopts a larger frame, the height of the frame is about 25m, and the drill rod can be connected in advance; however, the power systems of the two processes are top drive systems, namely the power heads are positioned on the rotary power at the top of the drill rod, and as the diameter of the drill rod is smaller, when the drilling depth is more than 25m, the verticality deviation is larger, the drill bit is easy to generate a 'soft eating phenomenon', the verticality of the jet grouting pile is seriously influenced, and particularly in the waterproof curtain engineering, the water sealing system is not closed and fails due to the larger verticality deviation. The two conventional processes are only suitable for the stratum such as cohesive soil, silt soil, slightly dense to medium dense sand and the like, but not suitable for the stratum such as dense and hard gravel layers, weathered bedrock, miscellaneous fill, rock fill and the like because the conventional processes only depend on the rotation power of the top of a drill rod. The triple pipe can pass through a method of pre-hole guiding and then rotary spraying of the rotary spraying pipe in the hard stratum, but the collapse holes easily appear in the holes after hole guiding, so that the rotary spraying pipe cannot be put in place, and the rotary spraying pile is incomplete, so that the pile forming quality is influenced.
Disclosure of Invention
In order to solve the problem that the effective drilling depth of the existing drilling machine is smaller, the invention provides a telescopic drill rod and a multifunctional telescopic high-pressure rotary jet drilling machine, the multifunctional telescopic high-pressure rotary jet drilling machine can greatly increase the construction depth, and the multifunctional telescopic high-pressure rotary jet drilling machine has the advantages of reliable construction quality, high construction efficiency, low construction cost, small influence on the surrounding environment, green environmental protection and the like.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a telescopic drilling rod, including the multilayer drilling rod festival that from inside to outside overlaps in proper order and establishes, the upper end of the innermost layer drilling rod festival of telescopic drilling rod is connected with gyration interface tap and carries the connecting piece, the innermost layer drilling rod festival endotheca of telescopic drilling rod is equipped with annotates liquid pipeline and gas injection pipeline, gyration interface tap contains the tap dabber and the tap shell that interior overcoat was established, the tap dabber can rotate for the tap shell, be equipped with annotate liquid interface and gas injection interface on the gyration interface tap, be equipped with annotate liquid interior runner and annotate gas interior runner in the gyration interface tap, annotate liquid interface and annotate liquid pipeline intercommunication through annotating liquid interior runner, annotate gas interface and annotate gas pipeline intercommunication through annotating gas interior runner.
The rotary interface tap also comprises a tap upper end cover, the upper end of the innermost layer drill rod section of the telescopic drill rod is fixedly provided with a drill rod upper end cover, the tap upper end cover is fixedly connected with the upper end of the tap shell, the lower end of the tap mandrel is fixedly connected with the drill rod upper end cover, the axis of the tap mandrel is coincident with the axis of the innermost layer drill rod section of the telescopic drill rod, the gas injection interface is positioned on the tap upper end cover, and the liquid injection interface is positioned on the tap shell.
The faucet upper end cover is in sealing connection with the faucet mandrel, the faucet shell is in sealing connection with the faucet mandrel, the inner surface of the faucet shell is provided with an annular liquid inlet groove, the annular liquid inlet groove is communicated with the liquid injection interface, the liquid injection inner runner and the gas injection inner runner are both positioned in the faucet mandrel, the upper end of the gas injection inner runner is communicated with the gas injection interface, the lower end of the gas injection inner runner is communicated with the gas injection pipeline, the upper end of the liquid injection inner runner is communicated with the annular liquid inlet groove, and the lower end of the liquid injection inner runner is communicated with the liquid injection pipeline.
The lifting connecting piece comprises a lifting column, a rotary joint and a connecting shell body which are sequentially connected from top to bottom, the maximum outer diameter of the lifting connecting piece is smaller than the outer diameter of the innermost drill rod section of the telescopic drill rod, the rotary joint and the connecting shell body can rotate relative to the lifting column, a high-pressure liquid supply pipe channel and a high-pressure air supply pipe channel are arranged in the lifting column, a rotary joint tap sleeve is sleeved in the connecting shell body, the upper end of the innermost drill rod section of the telescopic drill rod is fixedly provided with a drill rod upper end cover, and the connecting shell body is fixedly connected with the drill rod upper end cover.
The upper end of carrying the post is connected with and hangs the joint, carries the middle part of drawing the post and is equipped with outer boss, carries the lower part cover of drawing the post and locates in the swivel joint, and swivel joint's upper end is equipped with the gland, carries the lower part of drawing the post and is equipped with outer bulge loop outward, is equipped with pressure bearing between outer bulge loop and the gland, and this pressure bearing cover is located and carries between drawing the post and the swivel joint, and the entry end of high-pressure liquid supply pipe passageway and the entry end of high-pressure air supply pipe passageway all are located outer boss, and the exit end of high-pressure liquid supply pipe passageway and the exit end of high-pressure air supply pipe passageway all are located and carry the lower extreme of drawing the post.
The lower extreme of the inner most layer drilling rod section of telescopic drilling rod has connected gradually drilling rod lower extreme cover and lower clutch, telescopic drilling rod can loop through drilling rod lower extreme cover and lower clutch transmission moment of torsion, and annotate liquid pipeline and gas injection pipeline all with the inner most layer drilling rod section's of telescopic drilling rod axis parallel, the inside of lower clutch is equipped with down annotate liquid through-hole and lower gas injection through-hole, annotates the lower extreme of liquid pipeline and is connected with the lower annotating liquid through-hole of lower clutch, annotates the lower extreme of gas pipeline and is connected with the lower gas injection through-hole of lower clutch.
A multi-functional telescopic high pressure rotary jetting drill, comprising:
a frame;
the telescopic rotary jet drilling tool comprises a telescopic drill rod and a drill bit which are arranged up and down, wherein the telescopic drill rod is the telescopic drill rod;
the high-pressure air supply pipe is connected with an air injection port of the rotary port tap;
The high-pressure liquid supply pipe is connected with a liquid injection interface of the rotary interface faucet;
The lifting mechanism can lift the telescopic drill rod through the lifting connecting piece;
The hollow power device can drive the telescopic rotary jet drilling tool to drill, and is arranged on the frame.
The lifting mechanism comprises a steel wire rope, a pulley block and a pulley, wherein the steel wire rope comprises a first steel wire rope and a second steel wire rope, the pulley block and the pulley are both positioned at the upper end of the frame, one end of the first steel wire rope is connected with a hollow power device, the hollow power device is sleeved outside a telescopic drill rod, the first steel wire rope bypasses the pulley block, the other end of the first steel wire rope is connected with a first steel wire rope winch, one end of the second steel wire rope is connected with a lifting connecting piece, the second steel wire rope bypasses the pulley, and the other end of the second steel wire rope is connected with a second steel wire rope winch.
The multifunctional telescopic high-pressure rotary spraying drilling machine further comprises two guide rollers and two winches, the two guide rollers are located at the upper end of the machine frame, the two winches are located at the middle or lower portion of the machine frame, the high-pressure air supply pipe bypasses the first guide roller, the high-pressure air supply pipe winds outside the first winch, the high-pressure liquid supply pipe winds outside the second guide roller, and the high-pressure liquid supply pipe winds outside the second winch.
The telescopic rotary jetting drilling tool further comprises a fixed drill rod, a liquid supply pipeline and a gas supply pipeline are arranged in the fixed drill rod, the upper end of the fixed drill rod is connected with the lower end of the innermost drill rod section of the telescopic drill rod, the lower end of the fixed drill rod is connected with the tail end of the drill bit, the upper end of the liquid supply pipeline is communicated with the liquid injection pipeline, the upper end of the gas supply pipeline is communicated with the gas injection pipeline, the lower end of the liquid supply pipeline is correspondingly connected with the liquid injection interface of the drill bit, and the lower end of the gas supply pipeline is correspondingly connected with the gas injection interface of the drill bit.
The beneficial effects of the invention are as follows: the telescopic drill rod and the multifunctional telescopic high-pressure rotary spraying drilling machine can greatly increase the construction depth, and have the advantages of reliable construction quality, high construction efficiency, low construction cost, small influence on the surrounding environment, green environmental protection and the like.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
Fig. 1 is an upper perspective view of a telescopic drill rod according to the present invention.
Fig. 2 is a front view of the telescopic drill rod of the present invention.
Fig. 3 is a cross-sectional view taken along A-A in fig. 2.
Fig. 4 is a right side view of the telescoping drill rod of the present invention.
Fig. 5 is a top view of the telescoping drill rod of the present invention.
Fig. 6 is a sectional view taken along the direction B-B in fig. 5.
Fig. 7 is an enlarged schematic view of the upper portion of fig. 6.
Fig. 8 is a top perspective view of a swivel interface faucet.
Fig. 9 is a bottom perspective view of the swivel interface faucet.
Fig. 10 is a top perspective view of the lifting column and swivel joint.
Fig. 11 is a bottom perspective view of the lifting column and swivel joint.
Fig. 12 is a front view of the multi-functional telescopic high-pressure rotary drilling machine of the present invention.
Fig. 13 is a right side view of the multi-functional telescopic high pressure rotary drilling rig of the present invention.
Fig. 14 is an upper schematic view of a multi-functional telescopic high-pressure rotary drilling rig according to the present invention.
Fig. 15 is a schematic view of the connection of a fixed drill pipe to a drill bit.
1. A frame; 2. a telescopic rotary jet drilling tool; 3. a lifting mechanism; 4. a hollow power device; 5. a winch; 6. a retractable drill rod; 7. fixing a drill rod; 8. a drill bit; 9. an ejector; 10. a high pressure gas supply pipe; 11. a high-pressure liquid supply pipe; 12. a carriage; 13. a guide roller; 15. a wire rope; 16. a swivel interface tap; 17. lifting the connecting piece;
22. An innermost drill rod section of the telescopic drill rod; 23. the outermost layer drill rod section of the telescopic drill rod; 24. a liquid injection pipeline; 25. an air injection pipeline; 26. a drill rod upper end cover; 27. a drill rod lower end cover; 28. a lower joint; 29. a liquid injection interface; 30. an air injection interface; 31. a liquid supply pipe; 32. an air supply duct; 34. pulley block; 35. a pulley;
151. a first wire rope; 152. and a second wire rope.
161. A tap mandrel; 162. a faucet housing; 163. a liquid injection interface; 164. an air injection interface; 165. a liquid injection inner runner; 166. an air injection inner runner; 167. a faucet upper end cap; 168. an annular liquid inlet groove;
171. A lifting column; 172. a swivel joint; 173. connecting the outer shell; 174. a hanging joint; 175. a high pressure liquid supply pipe channel; 176. a high pressure gas supply pipe passage; 177. an outer boss; 178. a gland; 179. an outer convex ring; 1710. a lock nut;
261. A liquid filling through hole is arranged; 262. an upper gas injection through hole;
281. A liquid filling through hole; 282. and a lower gas injection through hole.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
The utility model provides a telescopic drilling rod, including the multilayer drilling rod festival that overlaps in proper order from inside to outside, the upper end of telescopic drilling rod's innermost drilling rod festival 22 is connected with gyration interface tap 16 and carries the connecting piece 17, telescopic drilling rod's innermost drilling rod festival 22 endotheca is equipped with annotates liquid pipeline 24 and gas injection pipeline 25, gyration interface tap 16 contains the tap dabber 161 and the tap shell 162 that interior overcoat was established, tap dabber 161 can rotate for tap shell 162, be equipped with annotate liquid interface 163 and gas injection interface 164 on the gyration interface tap 16, be equipped with annotate liquid internal runner 165 and annotate gas internal runner 166 in the gyration interface tap 16, annotate liquid interface 163 and annotate liquid pipeline 24 intercommunication through annotating liquid internal runner 165, annotate gas interface 164 and annotate gas pipeline 25 intercommunication through annotating gas internal runner 166, as shown in fig. 1 to 9.
The telescopic drill rod is of an antenna structure, comprises a plurality of layers of drill rod sections which are sleeved in sequence from inside to outside, the layers of drill rod sections are all upright metal cylinders, the axes of the layers of drill rod sections are coincident, and the layers of drill rod sections are connected by adopting the existing mechanical locking structure. The machine locking structure comprises driving keys arranged on each layer of drill rod section of the telescopic drill rod 6, and a pressurizing locking table is arranged between the external driving keys, namely, the connecting structure between each layer of drill rod sections is the same as the connecting structure between each layer of drill rod sections of the existing telescopic drill rod. The hollow power device 4 can directly apply acting force on the outermost drill rod section 23 of the telescopic drill rod, the telescopic drill rod 6 can extend out section by section, the length of the drill rod is increased, and the depth of drilling construction is greatly increased.
In this embodiment, the swivel joint tap 16 further comprises a tap upper end cover 167, the upper end of the innermost drill rod section 22 of the telescopic drill rod is fixed with the drill rod upper end cover 26, the tap upper end cover 167 is fixedly connected with the upper end of the tap housing 162 through bolts, the lower end of the tap mandrel 161 is fixedly connected with the drill rod upper end cover 26 through flanges, the axis of the tap upper end cover 167, the axis of the tap housing 162, the axis of the tap mandrel 161 and the axis of the innermost drill rod section 22 of the telescopic drill rod coincide, the gas injection interface 164 is positioned on the tap upper end cover 167, and the liquid injection interface 163 is positioned on the tap housing 162.
In this embodiment, the faucet upper end cover 167 is in sealing connection with the faucet spindle 161, the faucet housing 162 is in sealing connection with the faucet spindle 161, the inner surface of the faucet housing 162 is provided with an annular liquid inlet groove 168, the annular liquid inlet groove 168 is communicated with the liquid injection port 163, the liquid injection inner runner 165 and the gas injection inner runner 166 are both positioned in the faucet spindle 161, the upper end of the gas injection inner runner 166 is communicated with the gas injection port 164, the lower end of the gas injection inner runner 166 is communicated with the gas injection pipeline 25, the upper end of the liquid injection inner runner 165 is communicated with the annular liquid inlet groove 168, and the lower end of the liquid injection inner runner 165 is communicated with the liquid injection pipeline 24.
The tap mandrel 161 can rotate 360 degrees relative to the tap housing 162 by taking the axis of the innermost drill rod section 22 of the telescopic drill rod as an axis, the outer diameter of the tap mandrel 161 is equal to the inner diameter of the tap housing 162, relative movement or rotation cannot occur among the tap mandrel 161, the upper drill rod end cover 26 and the innermost drill rod section 22 of the telescopic drill rod, the upper drill rod end cover 26 is provided with an upper liquid injection through hole 261 and an upper gas injection through hole 262, the lower end of the liquid injection inner flow passage 165 and the upper end of the liquid injection pipeline 24 are correspondingly connected with the upper liquid injection through hole 261, and the lower end of the gas injection inner flow passage 166 and the upper end of the gas injection pipeline 25 are correspondingly connected with the upper gas injection through hole 262.
Specifically, two liquid injection inner flow passages 165 and one gas injection inner flow passage 166 are arranged in the tap mandrel 161, correspondingly, a gas injection interface 164 is arranged on the tap upper end cover 167, two liquid injection interfaces 163 are arranged on the tap shell 162, the two liquid injection interfaces 163 are symmetrically arranged on the left side and the right side of the tap shell 162, and two liquid injection pipelines 24 and one gas injection pipeline 25 are arranged in the innermost drill rod section 22 of the telescopic drill rod. The inner diameter of the injection inner flow passage 165 is smaller than the inner diameter of the injection inner flow passage 166, the injection inner flow passage 165 is in an upright state, and the injection inner flow passage 166 is in an inclined state. The upper end of the injection inner flow passage 165 is an inlet end, the lower end of the injection inner flow passage 165 is an outlet end, the upper end of the injection inner flow passage 166 is an inlet end, and the lower end of the injection inner flow passage 166 is an outlet end.
In this embodiment, the telescopic drill rod according to the present invention can be lifted by the lifting connection member 17, the lifting connection member 17 comprises a lifting column 171, a swivel joint 172 and a connecting outer housing 173 which are sequentially connected from top to bottom, the maximum outer diameter of the lifting connection member 17 is smaller than the outer diameter of the innermost drill rod section 22 of the telescopic drill rod, the swivel joint 172 and the connecting outer housing 173 can rotate relative to the lifting column 171, a high-pressure liquid supply pipe channel 175 and a high-pressure gas supply pipe channel 176 are arranged in the lifting column 171, the swivel joint tap 16 is sleeved in the connecting outer housing 173, the upper end of the innermost drill rod section 22 of the telescopic drill rod is fixed with a drill rod upper end cover 26, and the lower end of the connecting outer housing 173 is fixedly connected with the drill rod upper end cover 26, as shown in fig. 10 and 11.
In this embodiment, the upper end of the lifting column 171 is connected with a hanging joint 174, the middle part of the lifting column 171 is provided with an outer boss 177, the swivel joint 172 is of a cylindrical structure with two open ends, the lower part of the lifting column 171 is sleeved in the swivel joint 172, the upper end of the swivel joint 172 is provided with a gland 178, the lower part of the lifting column 171 is externally provided with an outer convex ring 179, a pressure bearing is arranged between the convex ring 179 and the gland 178, the outer convex ring 179 is positioned between the lifting column 171 and the swivel joint 172, the pressure bearing is sleeved between the lifting column 171 and the swivel joint 172, the inlet end of the high-pressure liquid supply pipe channel 175 and the inlet end of the high-pressure liquid supply pipe channel 176 are both positioned on the outer boss 177, the outlet end of the high-pressure liquid supply pipe channel 175 and the outlet end of the high-pressure liquid supply pipe channel 176 are both positioned on the lower end face of the lifting column 171, the outlet end of the high-pressure liquid supply pipe 10 correspondingly and hermetically connects the high-pressure liquid supply pipe channel 176 with the gas injection interface 164 on the swivel interface tap 16, and the outlet end of the high-pressure liquid supply pipe 11 correspondingly connects the high-pressure liquid supply pipe 175 with the swivel interface 163 in a sealing manner as shown in fig. 3.
The axis of the lifting column 171, the axis of the swivel 172, the axis of the connecting outer housing 173 and the axis of the innermost section 22 of the telescopic drill rod coincide. The swivel joint 172 and the connection housing 173 are rotatable 360 degrees about the axis of the innermost section 22 of the telescoping drill pipe relative to the lifting string 171, and no relative movement or rotation occurs between the swivel joint 172, the connection housing 173, the upper drill pipe end cap 26 and the innermost section 22 of the telescoping drill pipe. The gland 178 is connected with the upper end of the swivel joint 172 through a bolt, the inner diameter of the gland 178 is smaller than the inner diameter of the swivel joint 172, a lock nut 1710 is sleeved outside the lifting column 171, the outer convex ring 179 and the lock nut 1710 are vertically overlapped, the lock nut 1710 is in threaded connection with the lifting column 171, the outer convex ring 179 is fixed outside the lifting column 171 through the lock nut 1710, and the lifting column 171 sequentially transmits upward traction force to the pressure bearing, the gland 178, the swivel joint 172, the connecting outer shell 173, the drill rod upper end cover 26 and the innermost drill rod section 22 of the telescopic drill rod through the outer convex ring 179 and the lock nut 1710.
Specifically, two high-pressure liquid supply pipe channels 175 and one high-pressure gas supply pipe channel 176 are arranged in the lifting column 171, the connecting outer shell 173 is of a cylindrical structure, the inner diameter of the connecting outer shell 173 is larger than the outer diameter of the faucet shell 162, an upper cover is fixed at the upper end of the connecting outer shell 173, and the lower end of the swivel joint 172 is fixedly connected with the upper end of the connecting outer shell 173 through the upper cover. The side wall of the connecting outer shell 173 is provided with an oblong window through hole, and the side wall of the connecting outer shell 173 is also provided with a reinforcing rib.
In this embodiment, the lower end of the innermost drill rod section 22 of the telescopic drill rod is sequentially connected with a drill rod lower end cover 27 and a lower joint 28, torque can be transmitted through the drill rod lower end cover 27 and the lower joint 28 sequentially, the liquid injection pipeline 24 and the gas injection pipeline 25 are parallel to the axis of the innermost drill rod section 22 of the telescopic drill rod, two lower liquid injection through holes 281 and one lower gas injection through hole 282 are arranged at the upper end of the lower joint 28, the lower end of the liquid injection pipeline 24 is correspondingly and hermetically connected with the lower liquid injection through hole 281 of the lower joint 28, and the lower end of the gas injection pipeline 25 is correspondingly and hermetically connected with the lower gas injection through hole 282 of the lower joint 28.
The overall length of the telescopic drill rod of the present invention can be extended or shortened. In operation, the lifting column 171, the upper end cap 167 and the outer faucet housing 162 may remain stationary (neither moving nor rotating), and the swivel 172, the outer connecting housing 173, the faucet spindle 161 and all sections of the telescoping drill pipe will simultaneously rotate 360 degrees in synchronism about the axis of the innermost section 22 of the telescoping drill pipe. The lifting column 171 is pulled upwards and the whole telescopic drill rod according to the invention will be lifted upwards.
The telescopic drill rod comprises a plurality of layers of drill rod sections sleeved in sequence from inside to outside, and the drill rod sections in the telescopic drill rod extend downwards in sequence from outside to inside. For example, four layers of drill rod sections are arranged in the telescopic drill rod, the four layers of drill rod sections are a first drill rod section, a second drill rod section, a third drill rod section and a fourth drill rod section in sequence from inside to outside, the first drill rod section is the innermost layer drill rod section 22 of the telescopic drill rod, the fourth drill rod section is the outermost layer drill rod section 23 of the telescopic drill rod, and the first drill rod section, the second drill rod section and the third drill rod section are all inner layer drill rod sections of the telescopic drill rod 6.
When the telescopic drill rod needs to be stretched for the first time, the fourth drill rod section moves upwards by the length of one drill rod section, and the first drill rod section, the second drill rod section and the third drill rod section are kept still. When the telescopic drill rod needs to be extended for the second time, the fourth drill rod section moves upwards by the length of one drill rod section and the third drill rod section, and the first drill rod section and the second drill rod section are kept still. When the telescopic drill rod is required to be stretched for the third time, the fourth drill rod section moves upwards by the length of one drill rod section, the third drill rod section and the second drill rod section, the first drill rod section is kept still, and the telescopic drill rod is in the maximum stretching state. When the telescopic drill rod needs to be shortened, the drill rod sections in the telescopic drill rod 6 are sequentially moved downwards in an order from outside to inside until the telescopic drill rod is in a minimum shortened state, which may also be referred to as an initial state.
The following describes a multi-functional scalable high pressure rotary jetting drilling machine, comprising: the rotary jet drilling device comprises a frame 1, a telescopic rotary jet drilling tool 2, a high-pressure air supply pipe 10, a high-pressure liquid supply pipe 11, a lifting mechanism 3 and a hollow power device 4; the telescopic rotary jet drilling tool 2 comprises a telescopic drill rod 6 and a drill bit 8 which are arranged up and down, and the telescopic drill rod 6 is the telescopic drill rod; the high-pressure gas supply pipe 10 is connected with a gas injection port 164 of the rotary port tap 16; the high-pressure liquid supply pipe 11 is connected with a liquid injection port 163 of the rotary port tap 16; the lifting mechanism 3 can lift the telescopic drill rod 6 through the lifting connecting piece 17; the hollow power device 4 can drive the telescopic rotary jet drilling tool 2 to drill, and the hollow power device 4 is arranged on the frame 1 as shown in fig. 12 to 15.
In this embodiment, the lifting mechanism 3 includes a wire rope 15, a pulley block 34, a pulley 35, a first wire rope hoist and a second wire rope hoist; the wire rope 15 contains first wire rope 151 and second wire rope 152, pulley block 34 and pulley 35 all are located the upper end of frame 1, and the one end of first wire rope 151 is connected with hollow power device 4, and outside telescopic drilling rod 6 was located to hollow power device 4 cover, first wire rope 151 walked around pulley block 34, and the other end of first wire rope 151 is connected with first wire rope hoist engine, and the one end of second wire rope 152 is connected with lifting connection piece 17, and pulley 35 is walked around to second wire rope 152, and the other end of second wire rope 152 is connected with second wire rope hoist engine.
The first wire rope 151 is wound around the first wire rope hoist, and the second wire rope 152 is wound around the second wire rope hoist. The first wire rope 151 is used to move the hollow power unit 4 in the vertical direction, and the first wire rope bypasses a movable pulley installed above the hollow power unit 4 and a fixed pulley at the top of the drilling machine to form a 2-time wire rope winding. And the second wire rope hangs the drill rod. The first wire rope hoist and the second wire rope hoist may be both located on the frame 1, and the first wire rope hoist may retract and release the first wire rope 151 so that the hollow power device 4 moves in the vertical direction, and the second wire rope hoist may retract and release the second wire rope 152 so that the telescopic rotary spraying drilling tool 2 moves in the vertical direction.
This draw mechanism 3 and cavity power device 4 all set up on frame 1, cavity power device 4 passes through balladeur train 12 and is connected with frame 1, cavity power device 4 and scalable jet-grouting drilling tool 2 all can follow vertical direction and remove, cavity power device 4 can be current rig unit head, cavity power device 4 contacts with the outermost drilling rod festival 23 of scalable drilling rod, cavity power device 4 can directly act on the outermost drilling rod festival 23 of scalable drilling rod with effort, cavity power device 4 can make the drilling rod festival in the scalable drilling rod 6 upwards stretch out in proper order outside-in.
In this embodiment, the multifunctional telescopic high-pressure rotary spraying drilling machine further includes two guide rollers 13 and two winches 5, the two guide rollers 13 are all located at the upper end of the frame 1, the two winches 5 are all located at the middle or lower portion of the frame 1, the high-pressure air supply pipe 10 bypasses the first guide roller 13, the high-pressure air supply pipe 10 winds around the first winch 5, the high-pressure liquid supply pipe 11 bypasses the second guide roller 13, the high-pressure liquid supply pipe 11 winds around the second winch 5, the high-pressure liquid supply pipes 11 may be two, the high-pressure air supply pipe 10 is used for supplying high-pressure gas into the gas injection pipeline 25, and the high-pressure liquid supply pipe 11 is used for supplying high-pressure liquid into the liquid injection pipeline 24.
In this embodiment, the telescopic rotary spraying drilling tool 2 further comprises a fixed drill rod 7, the fixed drill rod 7 internally comprises a liquid supply pipeline 31 and an air supply pipeline 32, the upper end of the fixed drill rod 7 is connected with the lower end of the innermost drill rod section 22 of the telescopic drill rod, the lower end of the fixed drill rod 7 is connected with the tail end of the drill bit 8, the upper end of the liquid supply pipeline 31 is correspondingly and hermetically connected with the lower end of the liquid injection pipeline 24, the upper end of the liquid supply pipeline 31 is communicated with the liquid injection pipeline 24, the upper end of the air supply pipeline 32 is correspondingly and hermetically connected with the lower end of the air injection pipeline 25, the upper end of the air supply pipeline 32 is communicated with the air injection pipeline 25, the lower end of the liquid supply pipeline 31 is correspondingly and hermetically connected with the air injection interface 29 of the drill bit 8, and the lower end of the air supply pipeline 32 is correspondingly and hermetically connected with the air injection interface 30 of the drill bit 8, as shown in fig. 15.
In this embodiment, the upper end of the fixed drill rod 7 is fixedly connected with the lower joint 28 of the telescopic drill rod 6, the fixed drill rod 7 is an existing threaded drill rod, a spiral drill rod or a cylindrical drill rod with a smooth outer surface, the fixed drill rod 7 is formed by adding a liquid supply pipeline 31 and a gas supply pipeline 32 in the existing threaded drill rod, the spiral drill rod or the cylindrical drill rod with the smooth outer surface, threads are arranged outside the threaded drill rod, and spiral slices are arranged outside the spiral drill rod. The drill bit 8 may be a conventional rotary jet drill bit, or the drill bit 8 may be a down-the-hole percussion drill bit, and the upper end (i.e. the tail end) of the drill bit 8 is provided with a liquid injection interface 29 and a gas injection interface 30. The high-pressure gas supply pipe 10 finally supplies high-pressure gas into the gas injection port 30, and the high-pressure liquid supply pipe 11 finally supplies high-pressure liquid into the liquid injection port 29.
Specifically, the telescopic drill rod 6 comprises a plurality of layers of drill rod sections sleeved in sequence from inside to outside, and all layers of drill rod sections are connected by adopting the existing mechanical locking structure; the upper end of the innermost drill rod section 22 of the telescopic drill rod is connected with the lifting mechanism 3 through a lifting connecting piece 17, and the lower end of the innermost drill rod section 22 of the telescopic drill rod is connected with the upper end of the fixed drill rod 7; the lower end of the fixed drill rod 7 is fixedly connected with the upper end of the drill bit 8. The driving keys are arranged on each layer of drill rod section of the telescopic drill rod 6, a pressurizing lock platform is arranged between the external driving keys, the hollow power device 4 acts on the outermost layer of drill rod section 23 of the telescopic drill rod, downward pressurizing force is generated, and the downward pressurizing force is transmitted to the fixed drill rod 7 at the lower part, and then transmitted to the drill bit 8.
Screw drill rods are adopted for rock-filled stratum such as rock-throwing sea filling, mountain-opening land-making and the like, and can discharge part of rock-soil mass and compact the soil mass around the drill holes; a spiral drill rod is adopted for stratum such as cohesive soil, silt soil, sandy soil and the like, and the spiral drill rod can discharge rock-soil mass to the ground; for weathered rock stratum and sandy pebble stratum, a common cylindrical drill rod with smooth outer surface is adopted, so that friction resistance between the stratum and the drill rod can be reduced, rotation torque is reduced, and drill sticking is avoided. When the treated stratum is a stratum containing a large amount of large particles such as a riprap sea land making, an mountain making and the like, a down-the-hole impact drill bit is adopted, and as shown in fig. 12, the down-the-hole impact drill bit comprises a plurality of ejectors 9 (i.e. nozzles), one or more ejectors 9 can be arranged, and holes can be easily drilled; when the stratum is treated by common clay, silt, sand and the like, the stratum can be drilled downwards by adopting a conventional rotary jet drill head.
The working process of the telescopic drill rod and the multifunctional telescopic high-pressure rotary jet drilling machine is described below, and the method specifically comprises the following steps.
Step 1, the multifunctional telescopic high-pressure jet grouting drilling machine is positioned, a drill bit 8 is aligned to a pile position, the drill bit 8 is a down-the-hole percussion bit, the down-the-hole percussion bit comprises a striker and a hammer head which are arranged up and down, and an ejector 9 is arranged on the striker;
Step 2, starting a hollow power device 4, wherein the hollow power device 4 acts on the outermost drill rod section 23 of the telescopic drill rod, high-pressure air is provided for the drill bit 8 through the high-pressure air supply pipe 10, the impactor starts to work under the drive of the high-pressure air, the drill bit 8 breaks the rock and soil body, the hollow power device 4 generates downward pressurizing force, and the telescopic rotary jet drilling tool 2 rotates clockwise to drill downwards; meanwhile, high-pressure water is supplied to the ejector 9 through the high-pressure liquid supply pipe 11, and the ejector 9 ejects high-pressure water flow to cut and soften soil.
And3, drilling the outermost layer drill rod sections 23 of the fixed drill rod 7 and the telescopic drill rod into the ground, and discharging the high-pressure air supply pipe 10 and the high-pressure liquid supply pipe 11 by rotating the winch 5 along with the downward drilling of the fixed drill rod 7 and the telescopic drill rod 6 in the drilling process.
Step 4, when the outermost drill rod section 23 of the telescopic drill rod reaches the maximum drilling depth, the hollow power device 4 drives the telescopic drill rod 6 to rotate anticlockwise for unlocking, the hollow power device 4 and the outermost drill rod section 23 of the telescopic drill rod are lifted, the secondary outer drill rod section (and all drill rod sections in the secondary outer drill rod section) of the telescopic drill rod 6 are extended, and then the hollow power device 4 rotates clockwise for locking the drill rod section and pressurizing and drilling downwards;
and 5, repeating the step 4, sequentially extending each layer of drill rod section of the telescopic drill rod 6 from outside to inside, and drilling downwards.
Step 6, after drilling to the designed elevation, the hollow power device 4 drives the multifunctional telescopic rotary jet drilling tool 2 to rotate anticlockwise for unlocking, the second steel wire rope can be wound up by the second steel wire rope winding machine, the innermost drill rod section 22 of the telescopic drill rod is lifted up through the lifting connecting piece 17, high-pressure slurry is provided for the ejector 9 through the high-pressure liquid supply pipe 11, and the ejector 9 starts to jet slurry. The sections of the inner layer of the telescopic drill rod 6 are lifted up in the order from the inside to the outside, so that the sections of the inner layer of the telescopic drill rod 6 are sequentially moved in the vertical direction. And (3) lifting the drill rod joint, spraying slurry on the edge, lifting the drill rod joint upwards, simultaneously rotating the winch 5 along with the lifting of the drill rod joint, rolling the high-pressure air supply pipe 10 and the high-pressure liquid supply pipe 11 until the slurry is sprayed to the designed elevation, and lifting the telescopic rotary spraying drilling tool 2 out of the hole to form the cement soil pile.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical characteristics and technical characteristics, the technical characteristics and technical scheme and the technical scheme can be freely combined for use.
Claims (7)
1. The telescopic drill rod is characterized by comprising a plurality of layers of drill rod joints which are sleeved in sequence from inside to outside, wherein the upper end of the innermost layer of drill rod joint (22) of the telescopic drill rod is connected with a rotary joint tap (16) and a lifting connecting piece (17), the innermost layer of drill rod joint (22) of the telescopic drill rod is internally sleeved with a liquid injection pipeline (24) and a gas injection pipeline (25), the rotary joint tap (16) comprises a tap mandrel (161) and a tap shell (162) which are internally sleeved, the tap mandrel (161) can rotate relative to the tap shell (162), a liquid injection joint (163) and a gas injection joint (164) are arranged on the rotary joint tap (16), a liquid injection inner runner (165) and a gas injection inner runner (166) are arranged in the rotary joint tap (16), the liquid injection joint (163) is communicated with the liquid injection pipeline (24) through the liquid injection inner runner (165), and the gas injection joint (164) is communicated with the gas injection pipeline (25) through the gas injection inner runner (166);
The rotary interface faucet (16) further comprises a faucet upper end cover (167), a drill rod upper end cover (26) is fixed at the upper end of the innermost drill rod section (22) of the telescopic drill rod, the faucet upper end cover (167) is fixedly connected with the upper end of the faucet shell (162), the lower end of the faucet mandrel (161) is fixedly connected with the drill rod upper end cover (26), the axis of the faucet mandrel (161) coincides with the axis of the innermost drill rod section (22) of the telescopic drill rod, the gas injection interface (164) is positioned on the faucet upper end cover (167), and the liquid injection interface (163) is positioned on the faucet shell (162);
The faucet upper end cover (167) is in sealing connection with the faucet mandrel (161), the faucet shell (162) is in sealing connection with the faucet mandrel (161), an annular liquid inlet groove (168) is formed in the inner surface of the faucet shell (162), the annular liquid inlet groove (168) is communicated with the liquid injection interface (163), the liquid injection inner runner (165) and the gas injection inner runner (166) are both positioned in the faucet mandrel (161), the upper end of the gas injection inner runner (166) is communicated with the gas injection interface (164), the lower end of the gas injection inner runner (166) is communicated with the gas injection pipeline (25), the upper end of the liquid injection inner runner (165) is communicated with the annular liquid inlet groove (168), and the lower end of the liquid injection inner runner (165) is communicated with the liquid injection pipeline (24);
The lifting connecting piece (17) comprises a lifting column (171), a rotary joint (172) and a connecting outer shell (173) which are sequentially connected from top to bottom, the maximum outer diameter of the lifting connecting piece (17) is smaller than the outer diameter of the innermost drill rod section (22) of the telescopic drill rod, the rotary joint (172) and the connecting outer shell (173) can rotate relative to the lifting column (171), a high-pressure liquid supply pipe channel (175) and a high-pressure air supply pipe channel (176) are arranged in the lifting column (171), the rotary joint tap (16) is sleeved in the connecting outer shell (173), the upper end of the innermost drill rod section (22) of the telescopic drill rod is fixedly connected with a drill rod upper end cover (26), and the connecting outer shell (173) is fixedly connected with the drill rod upper end cover (26).
2. The telescopic drill rod according to claim 1, wherein the upper end of the lifting column (171) is connected with a hanging joint (174), the middle part of the lifting column (171) is provided with an outer boss (177), the lower part of the lifting column (171) is sleeved in the swivel joint (172), the upper end of the swivel joint (172) is provided with a gland (178), the lower part of the lifting column (171) is provided with an outer convex ring (179), a pressure bearing is arranged between the outer convex ring (179) and the gland (178), the pressure bearing is sleeved between the lifting column (171) and the swivel joint (172), the inlet end of the high-pressure liquid supply pipe channel (175) and the inlet end of the high-pressure gas supply pipe channel (176) are both positioned on the outer boss (177), and the outlet end of the high-pressure liquid supply pipe channel (175) and the outlet end of the high-pressure gas supply pipe channel (176) are both positioned at the lower end of the lifting column (171).
3. The telescopic drill rod according to claim 1, wherein the lower end of the innermost drill rod section (22) of the telescopic drill rod is sequentially connected with a drill rod lower end cover (27) and a lower joint (28), torque can be transmitted through the drill rod lower end cover (27) and the lower joint (28) sequentially, the liquid injection pipeline (24) and the gas injection pipeline (25) are parallel to the axis of the innermost drill rod section (22) of the telescopic drill rod, a lower liquid injection through hole (281) and a lower gas injection through hole (282) are formed in the lower joint (28), the lower end of the liquid injection pipeline (24) is connected with the lower liquid injection through hole (281) of the lower joint (28), and the lower end of the gas injection pipeline (25) is connected with the lower gas injection through hole (282) of the lower joint (28).
4. The utility model provides a multi-functional telescopic high pressure jet grouting drilling machine which characterized in that, multi-functional telescopic high pressure jet grouting drilling machine includes:
A frame (1);
A telescopic rotary jet drilling tool (2) which comprises a telescopic drill rod (6) and a drill bit (8) which are arranged up and down, wherein the telescopic drill rod (6) is the telescopic drill rod as claimed in claim 1;
A high-pressure air supply pipe (10) connected with an air injection port (164) of the rotary port tap (16);
A high-pressure liquid supply pipe (11) connected with a liquid injection port (163) of the rotary port tap (16);
the lifting mechanism (3) can lift the telescopic drill rod (6) through the lifting connecting piece (17);
the hollow power device (4) can drive the telescopic rotary jet drilling tool (2) to drill, and the hollow power device (4) is arranged on the frame (1).
5. The multifunctional telescopic high-pressure rotary spraying drilling machine according to claim 4, wherein the lifting mechanism (3) comprises a steel wire rope (15), a pulley block (34) and a pulley (35), the steel wire rope (15) comprises a first steel wire rope (151) and a second steel wire rope (152), the pulley block (34) and the pulley (35) are both arranged at the upper end of the frame (1), one end of the first steel wire rope (151) is connected with the hollow power device (4), the hollow power device (4) is sleeved outside the telescopic drill rod (6), the first steel wire rope (151) bypasses the pulley block (34), the other end of the first steel wire rope (151) is connected with a first steel wire rope winch, one end of the second steel wire rope (152) is connected with the lifting connecting piece (17), the second steel wire rope (152) bypasses the pulley (35), and the other end of the second steel wire rope (152) is connected with the second steel wire rope winch.
6. The multifunctional telescopic high-pressure rotary spraying drilling machine according to claim 4, further comprising two guide rollers (13) and two winches (5), wherein the two guide rollers (13) are located at the upper end of the frame (1), the two winches (5) are located at the middle or lower part of the frame (1), the high-pressure air supply pipe (10) bypasses the first guide roller (13), the high-pressure air supply pipe (10) winds outside the first winch (5), the high-pressure liquid supply pipe (11) winds outside the second guide roller (13), and the high-pressure liquid supply pipe (11) winds outside the second winch (5).
7. The multifunctional telescopic high-pressure rotary jet drilling machine according to claim 4, wherein the telescopic rotary jet drilling machine (2) further comprises a fixed drill rod (7), the fixed drill rod (7) comprises a liquid supply pipeline (31) and a gas supply pipeline (32), the upper end of the fixed drill rod (7) is connected with the lower end of an innermost drill rod section (22) of the telescopic drill rod, the lower end of the fixed drill rod (7) is connected with the tail end of a drill bit (8), the upper end of the liquid supply pipeline (31) is communicated with a liquid injection pipeline (24), the upper end of the gas supply pipeline (32) is communicated with a gas injection pipeline (25), the lower end of the liquid supply pipeline (31) is correspondingly connected with a gas injection interface (29) of the drill bit (8), and the lower end of the gas supply pipeline (32) is correspondingly connected with a gas injection interface (30) of the drill bit (8).
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| CN211623318U (en) * | 2019-10-30 | 2020-10-02 | 北京荣创岩土工程股份有限公司 | Telescopic drill rod and multifunctional telescopic high-pressure rotary jet drilling machine |
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| US4278136A (en) * | 1979-03-20 | 1981-07-14 | Hansson Goete I | Sinkerdrill |
| CN101435312A (en) * | 2007-11-13 | 2009-05-20 | 上海金泰工程机械有限公司 | Multifunctional hammer drill |
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