CN111101849B - Impact drilling equipment convenient for cleaning holes and used for pile foundation - Google Patents
Impact drilling equipment convenient for cleaning holes and used for pile foundation Download PDFInfo
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- CN111101849B CN111101849B CN202010148958.0A CN202010148958A CN111101849B CN 111101849 B CN111101849 B CN 111101849B CN 202010148958 A CN202010148958 A CN 202010148958A CN 111101849 B CN111101849 B CN 111101849B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 8
- 238000005553 drilling Methods 0.000 title claims description 34
- 238000009527 percussion Methods 0.000 claims abstract description 29
- 239000010802 sludge Substances 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 46
- 238000007789 sealing Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 23
- 238000007599 discharging Methods 0.000 abstract description 10
- 239000002893 slag Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
-
- 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
- E21B10/36—Percussion drill bits
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of percussion drills, and particularly relates to a pile foundation used percussion drill device convenient for cleaning holes. According to the impact drill designed by the invention, when the impact drill is pulled by the lifting rope to be lifted upwards, the impact piece rotates relative to the drill rod, the two mounting plates in the impact piece and the lower ends of the four triangular ribs mounted on the drill rod are distributed in a staggered manner, in the rotating process, the impact piece can shovel part of sludge to the upper sides of the two mounting plates, and when the impact drill is lifted, the sludge on the upper sides of the two mounting plates can be lifted together, so that the slag discharging efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of percussion drilling, and particularly relates to a pile foundation used percussion drilling device convenient for cleaning holes.
Background
In the field of pile foundations, a percussion drill lifts a punch hammer by using a steel rope, then drops by gravity, and impacts and crushes a stratum to realize drilling; the impact drilling machine can adapt to various geological conditions, particularly drilling holes in a pebble bed, and has strong adaptability compared with other drilling machines; meanwhile, an impact type drilling machine is used for forming holes, a compact soil layer is formed around the hole wall, and the impact type drilling machine has certain effects on stabilizing the hole wall and improving the bearing capacity of a pile foundation; in order to impact the hole forming efficiency, mud residue needs to be discharged in time in the drilling process to prevent hole collapse and deposition, so that the drill bit can impact a fresh stratum frequently; the existing method of pumping mud by positive circulation is adopted to carry out slag discharge in time; however, during drilling, the drilling slag is deposited at the bottom and cannot be suspended in the slurry, so that the slag discharge efficiency is reduced, and the punching speed is influenced, so that the design of the percussion drill equipment which can pull up the sediment or suck up the sediment by negative pressure in the percussion process so as to suspend the sediment in the slurry and facilitate suction is necessary.
The invention designs the impact drilling equipment which is used for the pile foundation and is convenient for cleaning holes, and solves the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a percussion drilling device which is used for a pile foundation and is convenient for cleaning holes, and the percussion drilling device is realized by adopting the following technical scheme.
The utility model provides a clear impact drilling equipment in hole of being convenient for that pile foundation used, it includes lifting hook, drilling rod, and wherein lifting hook fixed mounting is in the upper end of drilling rod, its characterized in that: four triangular ribs are uniformly and fixedly arranged on the outer circular surface of the lower end of the drill rod in the circumferential direction, and the lower end of each triangular rib is fixedly provided with an installation arc plate; the impact piece consists of two mounting plates which are distributed in a crisscross way and four impact arc plates; two end faces of each mounting plate are respectively provided with an impact arc plate, and the four impact arc plates are uniformly distributed in the circumferential direction; the two mounting plates are overlapped and combined together in an arc shape at the staggered part; the impact piece is detachably arranged at the lower end of the drill rod, and the four impact arc plates are in sliding fit with the four installation arc plates; the lower end surfaces of the four impact arc plates and the two mounting plates are provided with uniformly distributed bulges, the bulges are designed to improve the impact effect of the impact piece on the stratum, and the bulges are the same as the bulges arranged at the bottom end of the traditional impact drill; the radians of the four impact arc plates and the radian of the installation arc plate are both 50 degrees.
The lifting hook is of an inverted U-shaped structure, and the sliding hook is arranged in a U-shaped groove of the lifting hook in a sliding fit manner; the sliding hook slides upwards relative to the lifting hook and drives the impact piece to rotate by an included angle of 45 degrees relative to the drill rod through thread transmission, so that two mounting plates in the impact piece and the lower ends of four triangular ribs mounted on the drill rod are distributed in a staggered mode; and a return spring for controlling the impact piece and the drill rod to return is also arranged in the drill rod.
And a lifting rope in the pile foundation is connected with the sliding hook.
As a further improvement of the technology, the inner side of the upper end of the drill rod is provided with a pull rod hole, the lower end of the pull rod hole is provided with a spring mounting hole, the inner circular surface of the lower end of the spring mounting hole is provided with threads, the inner circular surface of the spring mounting hole is circumferentially and uniformly provided with two guide grooves, the lower end of the spring mounting hole is provided with a threaded sleeve mounting hole, and the lower end of the threaded sleeve mounting hole is provided with a fastening groove penetrating through the lower end surface of the drill rod; the lower end of the pull rod is provided with external threads, the pull rod is slidably arranged in the pull rod hole, and the lower end of the pull rod is positioned in the threaded sleeve mounting hole; the upper end of the pull rod is detachably connected with the sliding hook; first sealing rings which are distributed up and down are arranged between the pull rod and a pull rod hole formed in the drill rod; the sealing performance of the area, located at the lower side of the first sealing ring, in the drill rod in the sliding process of the pull rod is ensured; two guide blocks are uniformly arranged on the outer circular surface of the guide ring in the circumferential direction, the guide ring is fixedly arranged on the outer circular surface of the pull rod, and the guide ring is positioned in the spring mounting hole; the two guide blocks on the guide ring are in sliding fit with the two guide grooves; the guide block is matched with the guide groove to ensure that the pull rod can only be driven to slide up and down relative to the drill rod along the axis of the pull rod, but can not rotate; the lower end of the reset spring is fixedly arranged on the upper end surface of the guide ring, and the upper end of the reset spring is fixedly arranged on the upper end surface of the spring mounting hole; the reset spring has the effects that the lifting rope loses the tensile force on the sliding hook in the process that the percussion drill falls down by gravity, the reset spring loses the upward tensile force of the sliding hook on the pull rod, the reset spring resets, and the pull rod is pulled to move downwards; the tightening nut is arranged on the inner circular surface at the lower end of the spring mounting hole in a threaded fit manner; the nut is tightened to play a role in positioning the initial position of the pull rod; the threaded sleeve is rotatably arranged in the threaded sleeve mounting hole, an internal thread is arranged on the inner circular surface of the threaded sleeve, and the internal thread on the inner circular surface of the threaded sleeve is in threaded fit with the external thread at the lower end of the pull rod; the lower end of the mounting sleeve is provided with a hexagonal groove, and the upper end of the mounting sleeve is fixedly mounted at the lower end of the threaded sleeve; a second thrust bearing is arranged between the upper end of the threaded sleeve and the upper end face of a threaded sleeve mounting hole formed in the drill rod, a first thrust bearing is arranged at the lower end of the threaded sleeve, the upper end of the T-shaped fastening sleeve is arranged at the lower end of the first thrust bearing, the lower end of the T-shaped fastening sleeve is arranged in a fastening groove formed in the drill rod, a gasket is arranged between the upper side face of the lower end of the T-shaped fastening sleeve and the upper end face of the fastening groove, and the lower end of the T-shaped fastening sleeve and the upper end face of the fastening groove are fixedly connected through a plurality of second fastening screws which are uniformly distributed in the circumferential direction; the outer circular surface of the threaded sleeve is arranged on the inner circular surface of the threaded sleeve mounting hole through two bearings which are distributed up and down; two second sealing rings which are distributed up and down are arranged between the mounting sleeve and the T-shaped fastening sleeve; the T-shaped fastening sleeve has the function of limiting the threaded sleeve; the second sealing ring ensures that the mounting sleeve is positioned in the sealing performance of the upper side area of the second sealing ring in the drill rod in the rotating process.
A plurality of second sludge discharge holes communicated with the inner cavity at the upper end of the mounting groove are uniformly formed in the lower end surface of the mounting sleeve in the circumferential direction, a plurality of first sludge discharge holes are uniformly formed in the middle of the two mounting plates on the impact piece in the circumferential direction, and the first sludge discharge holes formed in the mounting plates are communicated with the second sludge discharge holes formed in the mounting sleeve in a one-to-one correspondence manner; the first mud discharging hole and the second mud discharging hole designed in the invention have the function of discharging and guiding the mud which permeates between the hexagonal column and the upper end surface of the hexagonal groove on the mounting sleeve in the working process of the impact drill, so that the mud which permeates between the hexagonal column and the upper end surface of the hexagonal groove on the mounting sleeve is prevented from influencing the transmission of the hexagonal column and the mounting sleeve.
The upper ends of two mounting plates in the impact piece are fixedly provided with hexagonal columns which are nested in hexagonal grooves in the mounting sleeve.
The outer cambered surfaces of the four mounting cambered plates are respectively provided with an arc-shaped guide block; the inner arc surfaces of the four impact arc plates are respectively provided with an arc guide groove penetrating through the upper end surface, the arc surfaces of the upper ends of the four impact arc plates are respectively and uniformly provided with a plurality of sliding arc grooves, each sliding arc groove is internally provided with a guide arc plate, and each guide arc plate is fixedly connected with the corresponding impact arc plate through a third fastening screw; all guide arc plates arranged on the same impact arc plate and the lower end surface of the arc guide groove formed in the corresponding impact arc plate form a complete arc-shaped sliding groove, and arc-shaped guide blocks arranged on the four installation arc plates are in sliding fit with the arc-shaped sliding grooves on the four impact arc plates; after the installation is finished, a gap is formed between the upper end surface of the arc-shaped guide block and the upper end surface of the arc-shaped sliding groove in the state that the drill rod is hoisted; this clearance design is in order to guarantee when the impact member strikes impact force through the drilling rod downside transmit the drilling rod on, avoid strikeing the arc board with the impact force through arc guide block and arc spout transmit the drilling rod on, damage the cooperation of arc spout department.
The lower ends of the four mounting arc plates are fixedly provided with a limiting block which limits the four impact arc plates in the impact piece; the position after the impact arc plate resets is guaranteed, and the impact arc plate dislocation caused by long-time use is prevented from influencing the normal use of equipment.
As a further improvement of the technology, the sliding hook is provided with a lifting rope through hole for hanging a lifting rope, the upper end of the lifting rope hole is provided with a steel rope groove, and the lower end surface of the lifting rope through hole is provided with a screw hole; the upper end of the pull rod is provided with a threaded hole, a first fastening screw penetrates through the threaded hole in the sliding hook to be matched with the threaded hole in the upper end of the pull rod, and the pull rod is connected with the sliding hook through the first fastening screw. The first fastening screw and the sliding hook have two different matching modes, the first fastening screw cannot be detached from the sliding hook, and the height of the through hole of the lifting rope is relatively small in the method, so that the strength of the sliding hook can be improved, the size of the sliding hook can be reduced, but the first fastening screw cannot be detached from the sliding hook; in this way, after the first fastening screw or the sliding hook is damaged after being used for a period of time, the first fastening screw and the sliding hook are directly replaced at the same time. Secondly, the first fastening screw can be detached from the sliding hook, and the height of the lifting rope through hole is relatively large in the method, so that the first fastening screw can be detached from the sliding hook by itself, and meanwhile, the size of the sliding hook needs to be increased for improving the strength of the sliding hook; in this way, after the tool is used for a period of time, the first fastening screw or the sliding hook is damaged, and the damaged part is directly detached and replaced relative to the other part without being replaced simultaneously. When the pull rod is installed, the pull rod and the sliding hook are directly fixed through the first fastening screw, when the pull rod is detached, the first fastening screw is taken down or loosened, and the pull rod and the sliding hook can be detached.
As a further improvement of the technology, the sliding hook is provided with a lifting rope through hole for hanging the lifting rope, the upper end of the lifting rope hole is provided with a steel rope groove, the lower end surface of the sliding hook is provided with a square slot, the upper end of the pull rod is fixedly provided with a fastening block, the fastening block is nested and installed in the square slot on the sliding hook, and the fastening block and the sliding hook are fixedly connected through a fourth fastening screw. When the pull rod is installed, the pull rod and the sliding hook are directly fixed through the fourth fastening screw, and when the pull rod is detached, the third fastening screw is taken down, and the pull rod and the sliding hook can be detached.
As a further improvement of the technology, two sliding chutes are symmetrically formed in the U-shaped groove of the lifting hook, two sliding blocks are symmetrically arranged at two ends of the sliding hook, and the sliding hook is arranged on the lifting hook through the sliding fit of the two sliding blocks and the two sliding chutes; the width that the cunning colluded is less than the height in lifting hook U-shaped groove, and the height that the cunning colluded is less than the width in lifting hook U-shaped groove, and all has the clearance between two sliders and two corresponding spouts, all has the clearance between the both ends that the cunning colluded and the both sides face in lifting hook U-shaped groove.
The thread pitch of the thread on the drill rod is larger than that of the thread on the thread sleeve, so that the thread sleeve can be driven to rotate in the process that the drill rod moves along the axis.
Compared with the traditional percussion drilling technology, the design of the invention has the following beneficial effects:
1. according to the impact drill designed by the invention, when the impact drill falls down by gravity, the two mounting plates in the impact piece and the four triangular ribs mounted on the drill rod are mutually overlapped to form a cross distribution, which is the same as that of the traditional cross-shaped impact drill, and because the impact piece and the lower side of the drill rod are completely overlapped, the impact force of the impact piece is transmitted to the drill rod, and the damage degree of the impact piece is weakened.
2. According to the impact drill designed by the invention, when the impact drill is pulled by the lifting rope to be lifted upwards, the impact piece rotates relative to the drill rod, the two mounting plates in the impact piece and the lower ends of the four triangular ribs mounted on the drill rod are distributed in a staggered manner, in the rotating process, the impact piece can shovel part of sludge to the upper sides of the two mounting plates, and when the impact drill is lifted, the sludge on the upper sides of the two mounting plates can be lifted together, so that the slag discharging efficiency is improved.
3. According to the percussion drill designed by the invention, when the percussion drill is pulled by the lifting rope to be lifted upwards, the impact piece rotates relative to the drill rod, the staggered area between the percussion drill and the stratum is enlarged after the impact piece rotates, and negative pressure is generated between the bottom end of the percussion drill and the stratum in the process of lifting the percussion drill, so that sludge deposited at the bottom end of the stratum is adsorbed to be suspended in mud, and the suction is convenient.
4. According to the invention, when the drill rod is lifted, a gap is formed between the upper end surface of the arc guide block and the upper end surface of the arc sliding groove, and the gap is designed to ensure that the impact force is transmitted to the drill rod through the lower side of the drill rod when the impact piece impacts, so that the impact force is prevented from being transmitted to the drill rod through the arc guide block and the arc sliding groove by the impact arc plate, and the matching at the arc sliding groove is damaged.
5. After the upper end of the sliding hook is contacted with the inner arc surface at the upper end of the lifting hook, the lifting rope lifts the impact drill upwards through the sliding hook and the lifting hook, and the damage caused by the stress of the sliding hook is avoided.
Drawings
Fig. 1 is an external view of an entire part.
Fig. 2 is a schematic view of the overall component distribution.
Figure 3 is a schematic view of the shock mounting.
Fig. 4 is an external view of the drill rod.
Fig. 5 is a schematic view of the internal structure of the drill rod.
Fig. 6 is a schematic view of the configuration of the striker.
Figure 7 is a hexagonal post mounting schematic.
Fig. 8 is a schematic view of the first mud hole and the second mud hole.
Fig. 9 is a schematic view of the slide hook structure.
Fig. 10 is a schematic view of a thread bushing configuration.
Fig. 11 is a schematic view of a drawbar configuration.
Fig. 12 is a schematic view of the mounting sleeve installation.
Fig. 13 is a schematic view of the mounting sleeve structure.
Fig. 14 is a schematic view of a gasket construction.
Fig. 15 is a schematic view of the mounting of the slide hook.
FIG. 16 is a sectional view of the structure of the lower side of the drill body.
Number designation in the figures: 1. a hook; 2. sliding hooks; 3. a drill stem; 4. triangular ribs; 5. an impact member; 6. installing an arc plate; 7. a pull rod; 8. a return spring; 9. installing a sleeve; 10. tightening the nut; 11. a threaded sleeve; 12. a first seal ring; 13. a first fastening screw; 14. a gasket; 15. a second seal ring; 16. a second fastening screw; 17. an impact arc plate; 18. a protrusion; 19. a limiting block; 20. a fastening hole; 21. an arc-shaped guide block; 22. a draw bar hole; 23. a spring mounting hole; 24. a guide groove; 25. a threaded sleeve mounting hole; 26. a fastening groove; 27. a chute; 28. a third fastening screw; 29. an arc-shaped guide groove; 30. mounting a plate; 31. a first mud discharging hole; 32. a threaded hole; 33. a hexagonal column; 34. a first thrust bearing; 35. a second sludge discharge hole; 36. a T-shaped fastening sleeve; 37. a steel rope groove; 38. screw holes; 39. a slider; 40. a bearing; 41. a guide block; 42. a guide ring; 43. a square slot; 44. a second thrust bearing; 45. an external thread; 46. an internal thread; 47. a hexagonal groove; 48. a fourth fastening screw; 49. fastening the square block; 50. a sliding arc groove; 51. punching a lifting rope; 52. and (4) guiding the arc plate.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, it comprises a hook 1 and a drill rod 3, wherein the hook 1 is fixedly installed at the upper end of the drill rod 3, and is characterized in that: as shown in fig. 4, four triangular ribs 4 are uniformly and fixedly installed on the outer circumferential surface of the lower end of the drill rod 3 in the circumferential direction, and an installation arc plate 6 is fixedly installed at the lower end of each triangular rib 4; as shown in fig. 6, the impact member 5 is composed of two mounting plates 30 arranged in a crisscross manner and four impact arc plates 17; two end faces of each mounting plate are respectively provided with an impact arc plate, and four impact arc plates 17 are uniformly distributed in the circumferential direction; the two mounting plates 30 are overlapped and combined together in an arc shape at the staggered part; as shown in fig. 1 and 3, the impact piece 5 is detachably mounted at the lower end of the drill rod 3, and the four impact arc plates 17 are in sliding fit with the four mounting arc plates 6; the lower end surfaces of the four impact arc plates 17 and the two mounting plates 30 are provided with uniformly distributed bulges 18, the bulges 18 are designed to improve the impact effect of the impact piece 5 on the stratum, and the bulges 18 are the same as the bulges 18 arranged at the bottom end of the traditional impact drill; the radian of the four impact arc plates 17 and the radian of the installation arc plate 6 are both 50 degrees.
As shown in fig. 2 and 16, the hook 1 is an inverted U-shaped structure, and the sliding hook 2 is installed in the U-shaped groove of the hook 1 by sliding fit; the sliding hook 2 slides upwards relative to the lifting hook 1 and drives the impact piece 5 to rotate by an included angle of 45 degrees relative to the drill rod 3 through thread transmission, so that two mounting plates 30 in the impact piece 5 and the lower ends of four triangular ribs 4 mounted on the drill rod 3 are distributed in a staggered mode; a return spring 8 for controlling the impact piece 5 and the drill rod 3 to return is also arranged in the drill rod 3; when the percussion drill designed by the invention is used and falls down by gravity, the two mounting plates 30 in the percussion piece 5 and the four triangular ribs 4 mounted on the drill rod 3 are mutually superposed to form a cross distribution, so that the percussion drill can impact the stratum conveniently; when the percussion drill is pulled by a lifting rope to be lifted upwards, the impact piece 5 rotates relative to the drill rod 3, the two mounting plates 30 in the impact piece 5 and the lower ends of the four triangular ribs 4 mounted on the drill rod 3 are distributed in a staggered mode, in the rotating process, the impact piece 5 can shovel part of sludge to the upper sides of the two mounting plates 30, when the percussion drill is lifted, the sludge on the upper sides of the two mounting plates 30 can be lifted together, and the slag discharging efficiency is improved; meanwhile, after the impact piece 5 is rotated, the staggered area of the impact drill and the stratum is enlarged, negative pressure is generated between the bottom end of the impact drill and the stratum in the process that the impact drill is lifted, and sludge deposited at the bottom end of the stratum is adsorbed to be suspended in slurry, so that the suction is facilitated. The reason why the radian of the impact arc plate 17 and the radian of the installation arc plate 6 are both 50 degrees is to ensure that after the impact piece 5 is rotated, a superposition area is formed between the impact arc plate 17 in the impact piece 5 and the installation arc plates 6 on the four triangular ribs 4, so that the adsorption force of the impact drill in the lifting process is improved.
And a lifting rope in the pile foundation is connected with the sliding hook 2.
As shown in fig. 5, a pull rod hole 22 is formed at the inner side of the upper end of the drill rod 3, a spring mounting hole 23 is formed at the lower end of the pull rod hole 22, threads are formed on the inner circular surface of the lower end of the spring mounting hole 23, two guide grooves 24 are uniformly formed in the inner circular surface of the spring mounting hole 23 in the circumferential direction, a threaded sleeve mounting hole 25 is formed at the lower end of the spring mounting hole 23, and a fastening groove 26 penetrating through the lower end surface of the drill rod 3 is formed at the lower end of the threaded sleeve mounting hole 25; as shown in fig. 11, the lower end of the pull rod 7 is provided with an external thread 45, as shown in fig. 2, the pull rod 7 is slidably mounted in the pull rod hole 22, and the lower end of the pull rod 7 is located in the threaded sleeve mounting hole 25; as shown in fig. 2 and 15, the upper end of the pull rod 7 is detachably connected with the sliding hook 2; as shown in fig. 2 and 10, the first sealing rings 12 distributed up and down are installed between the pull rod 7 and a pull rod hole 22 formed on the drill rod 3; the sealing performance of the area, which is positioned at the lower side of the first sealing ring 12, in the drill rod 3 in the sliding process of the pull rod 7 is ensured; as shown in fig. 11, two guide shoes 41 are circumferentially and uniformly mounted on the outer circumferential surface of the guide ring 42, as shown in fig. 2, the guide ring 42 is fixedly mounted on the outer circumferential surface of the drawbar 7, and the guide ring 42 is located in the spring mounting hole 23; the two guide blocks 41 on the guide ring 42 are in sliding fit with the two guide grooves 24; the guide block 41 is matched with the guide groove 24 to ensure that the pull rod 7 can only be driven to slide up and down relative to the drill rod 3 along the axis of the pull rod, but cannot rotate; as shown in fig. 2 and 10, the lower end of the return spring 8 is fixedly mounted on the upper end surface of the guide ring 42, and the upper end of the return spring 8 is fixedly mounted on the upper end surface of the spring mounting hole 23; the reset spring 8 has the effects that the lifting rope loses the tensile force on the sliding hook 2 in the process that the percussion drill falls down by the gravity, the reset spring 8 loses the upward tensile force of the sliding hook 2 on the pull rod 7, the reset spring 8 resets, and the pull rod 7 is pulled to move downwards; as shown in fig. 3 and 10, the tightening nut 10 is mounted on the inner circumferential surface of the lower end of the spring mounting hole 23 by screw-fitting; the function of the tightening nut 10 is to play a role in positioning the initial position of the pull rod 7; as shown in fig. 2, 16 and 12, the threaded sleeve 11 is rotatably mounted in the threaded sleeve mounting hole 25, and the threaded sleeve 11 has an internal thread 46 on the inner circumferential surface thereof, and the internal thread 46 on the inner circumferential surface of the threaded sleeve 11 is in threaded engagement with the external thread 45 at the lower end of the pull rod 7; as shown in fig. 13, the lower end of the mounting sleeve 9 is provided with a hexagonal groove 47, and the upper end of the mounting sleeve 9 is fixedly mounted at the lower end of the threaded sleeve 11; as shown in fig. 2, 10 and 12, a second thrust bearing 44 is installed between the upper end of the threaded sleeve 11 and the upper end face of the threaded sleeve installation hole 25 formed in the drill rod 3, a first thrust bearing 34 is installed at the lower end of the threaded sleeve 11, as shown in fig. 2, 16 and 12, the upper end of the T-shaped fastening sleeve 36 is installed at the lower end of the first thrust bearing 34, the lower end of the T-shaped fastening sleeve 36 is installed in the fastening groove 26 formed in the drill rod 3, as shown in fig. 14, a gasket 14 is installed between the upper side face of the lower end of the T-shaped fastening sleeve 36 and the upper end face of the fastening groove 26, and the lower end of the T-shaped fastening sleeve 36 and the upper end face of the fastening groove 26 are fixedly connected through a plurality of second fastening screws 16 which are uniformly distributed in the circumferential; as shown in fig. 10 and 12, the outer circular surface of the threaded sleeve 11 is mounted on the inner circular surface of the threaded sleeve mounting hole 25 through two bearings 40 distributed up and down; as shown in fig. 8 and 13, two second sealing rings 15 which are distributed up and down are installed between the installation sleeve 9 and the T-shaped fastening sleeve 36; the T-shaped fastening sleeve 36 is used for limiting the threaded sleeve 11; the second sealing ring 15 ensures the tightness of the region of the mounting sleeve 9 located above the second sealing ring 15 in the drill rod 3 during rotation.
As shown in fig. 8, a plurality of second sludge discharge holes 35 communicated with the inner cavity of the upper end of the mounting groove are uniformly formed in the circumferential direction on the lower end surface of the mounting sleeve 9, a plurality of first sludge discharge holes 31 are uniformly formed in the circumferential direction on the middle positions of the two mounting plates 30 on the impact piece 5, and the first sludge discharge holes 31 formed in the mounting plates 30 are communicated with the second sludge discharge holes 35 formed in the mounting sleeve 9 in a one-to-one correspondence manner; the first mud discharging hole 31 and the second mud discharging hole 35 designed in the invention have the function of discharging and guiding the mud which permeates between the hexagonal column 33 and the upper end surface of the hexagonal groove 47 on the mounting sleeve 9 in the working process of the impact drill, so that the mud which permeates between the hexagonal column 33 and the upper end surface of the hexagonal groove 47 on the mounting sleeve 9 is prevented from influencing the transmission of the hexagonal column 33 and the mounting sleeve 9.
As shown in fig. 7, the hexagonal columns 33 are fixedly mounted at the upper ends of the two mounting plates 30 in the impact member 5, and the hexagonal columns 33 are nested in the hexagonal grooves 47 on the mounting sleeve 9.
As shown in fig. 4, the outer arc surfaces of the four mounting arc plates 6 are respectively provided with an arc guide block 21; the inner arc surfaces of the four impact arc plates 17 are respectively provided with an arc guide groove 29 penetrating through the upper end surface, as shown in fig. 7, the arc surfaces of the upper ends of the four impact arc plates 17 are respectively and uniformly provided with a plurality of sliding arc grooves 50, each sliding arc groove 50 is internally provided with a guide arc plate 52, and each guide arc plate 52 is fixedly connected with the corresponding impact arc plate 17 through a third fastening screw 28; as shown in fig. 6, all the guide arc plates 52 installed on the same striking arc plate 17 and the lower end surface of the arc-shaped guide groove 29 opened on the corresponding striking arc plate 17 form a complete arc-shaped sliding groove, and as shown in fig. 2 and 3, the arc-shaped guide blocks 21 installed on the four installation arc plates 6 are in sliding fit with the arc-shaped sliding grooves on the four striking arc plates 17; after the installation is finished, a gap is reserved between the upper end surface of the arc guide block 21 and the upper end surface of the arc chute in the state that the drill rod 3 is hoisted; this clearance design is in order to guarantee that impact member 5 when assaulting impact on the impact force transmits drilling rod 3 through drilling rod 3 downside, avoid assaulting arc board 17 with the impact force through arc guide block 21 and arc spout transmit drilling rod 3 on, damage the cooperation of arc spout department.
As shown in fig. 4, the lower ends of the four mounting arc plates 6 are fixedly provided with a limiting block 19 for limiting the four impact arc plates 17 in the impact member 5; the position of the impact arc plate 17 after reset is ensured, and the impact arc plate 17 is prevented from being misplaced when being used for a long time, so that the normal use of the equipment is prevented from being influenced.
As shown in fig. 2 and 9, the sliding hook 2 has a rope through hole 51 for hanging the rope, the upper end of the rope through hole has a steel rope groove 37, and the lower end surface of the rope through hole 51 has a screw hole 38; the upper end of the pull rod 7 is provided with a threaded hole 32, a first fastening screw 13 passes through a screw hole 38 on the sliding hook 2 to be matched with the threaded hole 32 at the upper end of the pull rod 7, and the pull rod 7 is connected with the sliding hook 2 through the first fastening screw 13. The first fastening screw 13 and the sliding hook 2 have two different matching modes, the first mode is that the first fastening screw 13 cannot be detached from the sliding hook 2, and the height of the lifting rope through hole 51 is relatively small, so that the strength of the sliding hook 2 can be improved, the volume of the sliding hook 2 can be reduced, but the first fastening screw 13 cannot be detached from the sliding hook 2; in this way, after a period of use, the first fastening screw 13 or the sliding hook 2 can be directly replaced at the same time after being damaged. Secondly, the first fastening screw 13 can be detached from the sliding hook 2, in this way, the height of the lifting rope through hole 51 is relatively large, so that the first fastening screw 13 can be detached from the sliding hook 2 by itself, and meanwhile, the size of the sliding hook 2 needs to be increased for improving the strength of the sliding hook 2; in this way, after a period of use, the first fastening screw 13 or the sliding hook 2 is damaged, and the damaged part can be directly detached from the other part for replacement without being replaced at the same time. During installation, the pull rod 7 and the sliding hook 2 are directly fixed through the first fastening screw 13, and when the pull rod 7 and the sliding hook 2 are detached, the first fastening screw 13 is taken down or loosened, and the pull rod 7 and the sliding hook 2 can be detached.
As shown in fig. 2 and 15, the sliding hook 2 has a rope through hole 51 for hanging a rope, the upper end of the rope through hole has a steel rope groove 37, the lower end surface of the sliding hook 2 is provided with a square slot 43, the upper end of the pull rod 7 is fixedly provided with a fastening block 49, the fastening block 49 is nested in the square slot 43 on the sliding hook 2, and the fastening block 49 is fixedly connected with the sliding hook 2 through a fourth fastening screw 48. During installation, the pull rod 7 and the sliding hook 2 can be directly fixed through the fourth fastening screw 48, and during disassembly, the third fastening screw 28 is taken down, so that the pull rod 7 and the sliding hook 2 can be disassembled.
As shown in fig. 2, two sliding grooves 27 are symmetrically formed in the U-shaped groove of the hook 1, two sliding blocks 39 are symmetrically installed at two ends of the sliding hook 2, and the sliding hook 2 is installed on the hook 1 by sliding fit of the two sliding blocks 39 and the two sliding grooves 27; the width that the smooth 2 colludes is less than the height in 1U-shaped groove of lifting hook, and the height that the smooth 2 colludes is less than the width in 1U-shaped groove of lifting hook, and all has the clearance between two sliders 39 and two corresponding spouts 27, all has the clearance between the both ends that the smooth 2 colludes and the both sides face in 1U-shaped groove of lifting hook. The reason for designing these clearances is to ensure that the sliding hook 2 can be swung ninety degrees to the side of the U-shaped groove of the hook 1; when the sliding hook 2 is installed, firstly, the sliding hook 2 is placed in the U-shaped groove of the lifting hook 1 by ninety degrees on the side, then the sliding hook 2 is placed in the U-shaped groove of the lifting hook 1 by ninety degrees on the reverse side, and the sliding hook 2 is placed in a right position, so that the sliding block 39 on the sliding hook 2 is matched with the sliding groove 27 on the lifting hook 1; when the sliding hook 2 is detached, the hook is firstly swung ninety degrees at the inner side of the U-shaped groove of the lifting hook 1, so that the sliding block 39 of the sliding hook 2 is separated from the sliding groove 27 on the lifting hook 1, and then the sliding hook 2 is taken out.
When the impact piece 5 is installed, firstly, the hexagonal column 33 is inserted into the hexagonal groove 47 on the installation sleeve 9, and the four impact arc plates 17 are aligned with the four installation arc plates 6 in a one-to-one correspondence manner, the arc guide grooves 29 on the four impact arc plates 17 are inserted into the arc guide blocks 21 installed on the four installation arc plates 6, then the guide arc plates 52 are inserted into the sliding arc grooves 50 opened on the impact arc plates 17 in a one-to-one correspondence manner, and finally, the guide arc plates are fixed by the third fastening screws 28, so that the lower end faces of the arc guide grooves 29 opened on all the guide arc plates 52 installed on the same impact arc plate 17 and the corresponding impact arc plates 17 form a complete arc slide groove, and the arc guide blocks 21 installed on the four installation arc plates 6 are in slide fit with the arc slide grooves on the four impact arc plates 17. When the impact piece 5 is disassembled, all the third fastening screws 28 are firstly loosened, and then all the guide arc plates 52 are pulled out.
When the percussion drill is installed, firstly, the sliding hook 2 is placed in the U-shaped groove of the lifting hook 1 by ninety degrees on the side, then the sliding hook 2 is placed in the U-shaped groove of the lifting hook 1 by ninety degrees on the reverse side, and the sliding hook 2 is placed in a right position, so that the sliding block 39 on the sliding hook 2 is matched with the sliding groove 27 on the lifting hook 1; then the return spring 8 is placed into the spring mounting hole 23 formed in the drill rod 3 from the lower side of the drill rod 3, after the return spring 8 is mounted, the pull rod 7 penetrates through the lower side of the drill rod 3, then the pull rod 7 is fixed with the sliding hook 2, the guide ring 42 mounted on the pull rod 7 is embedded in the spring mounting hole 23, and the guide block 41 mounted on the guide ring 42 is matched with the guide groove 24 formed in the pull rod 7; after the pull rod 7 is fixed, the tightening nut 10 is rotatably arranged in the spring mounting hole 23; then, the second thrust bearing 44 is placed at the upper end in the threaded sleeve mounting hole 25, the two bearings 40 are placed in the threaded sleeve mounting hole 25, then the threaded sleeve 11 is rotatably placed in the threaded sleeve mounting hole 25, and the threaded sleeve 11 is matched with the thread on the pull rod 7; after the threaded sleeve 11 is installed, the installation of the installation sleeve 9 fixed on the threaded sleeve 11 is also completed; then, a first thrust bearing 34 is placed at the lower end of the threaded sleeve 11, the upper end of the T-shaped fastening sleeve is inserted into the mounting sleeve 9 and the threaded sleeve mounting hole 25, and the lower end of the T-shaped fastening sleeve is fixed at the lower end of the drill rod 3 through a second fastening screw 16; after the installation is accomplished, insert hexagonal column 33 in the hexagonal groove 47 on the installation cover 9, and guarantee that four impact arc boards 17 and four installation arc boards 6 one-to-one align, four arc guide slot 29 that strike on the arc board 17 are inserted on the arc guide block 21 of installation on four installation arc boards 6, then insert the slip arc groove 50 of opening on the impact arc board 17 with the direction arc board 52 one-to-one, it is fixed through third fastening screw 28 at last, make all direction arc boards 52 of installation on the same impact arc board 17 and correspond the lower terminal surface of the arc guide slot 29 of opening on the impact arc board 17 and constitute a complete arc spout, and arc guide block 21 of installation on four installation arc boards 6 strikes arc spout sliding fit with four arc spout on the impact arc board 17.
During disassembly, all the third fastening screws 28 are firstly loosened, all the guide arc plates 52 are then pulled out, the impact piece 5 is taken down, all the second fastening screws 16 are then loosened and taken down, the T-shaped fastening sleeve is taken down, after the T-shaped fastening sleeve is disassembled, the first thrust bearing 34 is taken down, the threaded sleeve 11 is screwed and disassembled, the second thrust bearing 44 is taken down, the tightening nut 10 is screwed and disassembled, then the pull rod 7 and the sliding hook 2 are disassembled, the pull rod 7 is taken down, finally the hook is turned ninety degrees on the inner side of the U-shaped groove of the lifting hook 1, the sliding block 39 of the sliding hook 2 is separated from the sliding groove 27 on the lifting hook 1, then the sliding hook 2 is taken out, and disassembly is completed.
The thread pitch of the thread on the drill rod 3 and the thread pitch of the thread on the thread bush 11 are larger, so that the thread bush 11 can be driven to rotate in the process that the drill rod 3 moves along the axis.
The specific working process is as follows: when the impact drill designed by the invention is used, the impact drill is fixed on a lifting rope after being installed, the up-and-down movement of the impact drill is controlled through the lifting rope, when the impact drill is pulled by the lifting rope to be lifted upwards, firstly, the sliding hook 2 moves upwards relative to the lifting hook 1, the sliding hook 2 moves upwards to drive the pull rod 7 to move upwards, the pull rod 7 drives the threaded sleeve 11 to rotate, the threaded sleeve 11 rotates to drive the installation sleeve 9 to rotate, the installation sleeve 9 rotates to drive the impact piece 5 to rotate through the matching of the hexagonal column 33 and the hexagonal groove 47 on the installation sleeve 9, two installation plates 30 in the impact piece 5 and the lower ends of four triangular ribs 4 installed on the drill rod 3 are distributed in a staggered mode, in the rotating process, the impact piece 5 can shovel a part of sludge to the upper sides of the two installation plates 30, when the impact drill is lifted, the sludge on the upper sides of the two installation plates 30 can be lifted together, and the; meanwhile, after the impact piece 5 is rotated, the staggered area of the impact drill and the stratum is enlarged, negative pressure is generated between the bottom end of the impact drill and the stratum in the process that the impact drill is lifted, and sludge deposited at the bottom end of the stratum is adsorbed to be suspended in slurry, so that the suction is facilitated; after the rotation is finished, the upper end of the sliding hook 2 is contacted with the inner arc surface at the upper end of the lifting hook 1, and the lifting rope lifts the impact drill upwards together with the lifting hook 1 through the sliding hook 2; when loosening the lifting rope, the percussion drill leans on gravity to descend, smooth 2 of colluding loses the pulling force, the relative lifting hook 1 of colluding 2 moves down under reset spring 8's effect, pull rod 7 moves down, threaded sleeve 11 is rotatory to drive the installation cover 9 rotatory, the cooperation drive impact piece 5 of hexagonal groove 47 on installation cover 9 is rotatory through hexagonal column 33 and the installation cover 9 to installation cover 9, make two mounting panels 30 in the impact piece 5 and four triangle muscle 4 of installation on the drilling rod 3 coincide into the cross each other and distribute, make things convenient for the percussion drill to strike the stratum.
Claims (5)
1. The utility model provides a clear impact drilling equipment in hole of being convenient for that pile foundation used, it includes lifting hook, drilling rod, and wherein lifting hook fixed mounting is in the upper end of drilling rod, its characterized in that: four triangular ribs are uniformly and fixedly arranged on the outer circular surface of the lower end of the drill rod in the circumferential direction, and the lower end of each triangular rib is fixedly provided with an installation arc plate; the impact piece consists of two mounting plates which are distributed in a crisscross way and four impact arc plates; two end faces of each mounting plate are respectively provided with an impact arc plate, and the four impact arc plates are uniformly distributed in the circumferential direction; the impact piece is detachably arranged at the lower end of the drill rod, and the four impact arc plates are in sliding fit with the four installation arc plates; the lower end surfaces of the four impact arc plates and the two mounting plates are provided with bulges which are uniformly distributed; the radians of the four impact arc plates and the radian of the installation arc plate are both 50 degrees;
the lifting hook is of an inverted U-shaped structure, and the sliding hook is arranged in a U-shaped groove of the lifting hook in a sliding fit manner; the sliding hook slides upwards relative to the lifting hook and drives the impact piece to rotate by an included angle of 45 degrees relative to the drill rod through thread transmission, so that two mounting plates in the impact piece and the lower ends of four triangular ribs mounted on the drill rod are distributed in a staggered mode; a reset spring for controlling the reset of the impact piece and the drill rod is also arranged in the drill rod;
and a lifting rope in the pile foundation is connected with the sliding hook.
2. The percussion drilling apparatus for pile foundation of claim 1, which facilitates hole cleaning, further comprising: the inner side of the upper end of the drill rod is provided with a pull rod hole, the lower end of the pull rod hole is provided with a spring mounting hole, the inner circular surface of the lower end of the spring mounting hole is provided with threads, the inner circular surface of the spring mounting hole is uniformly provided with two guide grooves in the circumferential direction, the lower end of the spring mounting hole is provided with a threaded sleeve mounting hole, and the lower end of the threaded sleeve mounting hole is provided with a fastening groove penetrating through the lower end surface of the drill rod; the lower end of the pull rod is provided with external threads, the pull rod is slidably arranged in the pull rod hole, and the lower end of the pull rod is positioned in the threaded sleeve mounting hole; the upper end of the pull rod is detachably connected with the sliding hook; first sealing rings which are distributed up and down are arranged between the pull rod and a pull rod hole formed in the drill rod; two guide blocks are uniformly arranged on the outer circular surface of the guide ring in the circumferential direction, the guide ring is fixedly arranged on the outer circular surface of the pull rod, and the guide ring is positioned in the spring mounting hole; the two guide blocks on the guide ring are in sliding fit with the two guide grooves; the lower end of the reset spring is fixedly arranged on the upper end surface of the guide ring, and the upper end of the reset spring is fixedly arranged on the upper end surface of the spring mounting hole; the tightening nut is arranged on the inner circular surface at the lower end of the spring mounting hole in a threaded fit manner; the threaded sleeve is rotatably arranged in the threaded sleeve mounting hole, an internal thread is arranged on the inner circular surface of the threaded sleeve, and the internal thread on the inner circular surface of the threaded sleeve is in threaded fit with the external thread at the lower end of the pull rod; the lower end of the mounting sleeve is provided with a hexagonal groove, and the upper end of the mounting sleeve is fixedly mounted at the lower end of the threaded sleeve; a second thrust bearing is arranged between the upper end of the threaded sleeve and the upper end face of a threaded sleeve mounting hole formed in the drill rod, a first thrust bearing is arranged at the lower end of the threaded sleeve, the upper end of the T-shaped fastening sleeve is arranged at the lower end of the first thrust bearing, the lower end of the T-shaped fastening sleeve is arranged in a fastening groove formed in the drill rod, a gasket is arranged between the upper side face of the lower end of the T-shaped fastening sleeve and the upper end face of the fastening groove, and the lower end of the T-shaped fastening sleeve and the upper end face of the fastening groove are fixedly connected through a plurality of second fastening screws which are uniformly distributed in the circumferential direction; the outer circular surface of the threaded sleeve is arranged on the inner circular surface of the threaded sleeve mounting hole through two bearings which are distributed up and down; two second sealing rings which are distributed up and down are arranged between the mounting sleeve and the T-shaped fastening sleeve;
a plurality of second sludge discharge holes communicated with the inner cavity at the upper end of the mounting groove are uniformly formed in the lower end surface of the mounting sleeve in the circumferential direction, a plurality of first sludge discharge holes are uniformly formed in the middle of the two mounting plates on the impact piece in the circumferential direction, and the first sludge discharge holes formed in the mounting plates are communicated with the second sludge discharge holes formed in the mounting sleeve in a one-to-one correspondence manner;
the upper ends of two mounting plates in the impact piece are fixedly provided with hexagonal columns which are nested in hexagonal grooves on the mounting sleeve;
the outer cambered surfaces of the four mounting cambered plates are respectively provided with an arc-shaped guide block; the inner arc surfaces of the four impact arc plates are respectively provided with an arc guide groove penetrating through the upper end surface, the arc surfaces of the upper ends of the four impact arc plates are respectively and uniformly provided with a plurality of sliding arc grooves, each sliding arc groove is internally provided with a guide arc plate, and each guide arc plate is fixedly connected with the corresponding impact arc plate through a third fastening screw; all guide arc plates arranged on the same impact arc plate and the lower end surface of the arc guide groove formed in the corresponding impact arc plate form a complete arc-shaped sliding groove, and arc-shaped guide blocks arranged on the four installation arc plates are in sliding fit with the arc-shaped sliding grooves on the four impact arc plates; after the installation is finished, a gap is formed between the upper end surface of the arc-shaped guide block and the upper end surface of the arc-shaped sliding groove in the state that the drill rod is hoisted;
the lower ends of the four mounting arc plates are fixedly provided with a limiting block which limits the four impact arc plates in the impact piece.
3. The percussion drilling apparatus for pile foundation of claim 2, wherein: the sliding hook is provided with a lifting rope through hole for hanging a lifting rope, the upper end of the lifting rope hole is provided with a steel rope groove, and the lower end surface of the lifting rope through hole is provided with a screw hole; the upper end of the pull rod is provided with a threaded hole, a first fastening screw penetrates through the threaded hole in the sliding hook to be matched with the threaded hole in the upper end of the pull rod, and the pull rod is connected with the sliding hook through the first fastening screw.
4. The percussion drilling apparatus for pile foundation of claim 2, wherein: the sliding hook is provided with a lifting rope through hole for hanging a lifting rope, the upper end of the lifting rope hole is provided with a steel rope groove, the lower end face of the sliding hook is provided with a square slot, the upper end of the pull rod is fixedly provided with a fastening square block, the fastening square block is nested and installed in the square slot on the sliding hook, and the fastening square block is fixedly connected with the sliding hook through a fourth fastening screw.
5. A pile foundation used percussion drilling equipment convenient for cleaning holes according to claim 3 or 4, wherein: two sliding chutes are symmetrically formed in the U-shaped groove of the lifting hook, two sliding blocks are symmetrically arranged at two ends of the sliding hook, and the sliding hook is arranged on the lifting hook through the sliding fit of the two sliding blocks and the two sliding chutes; the width that the cunning colluded is less than the height in lifting hook U-shaped groove, and the height that the cunning colluded is less than the width in lifting hook U-shaped groove, and all has the clearance between two sliders and two corresponding spouts, all has the clearance between the both ends that the cunning colluded and the both sides face in lifting hook U-shaped groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148958.0A CN111101849B (en) | 2020-03-05 | 2020-03-05 | Impact drilling equipment convenient for cleaning holes and used for pile foundation |
| JP2021000195A JP6953044B2 (en) | 2020-03-05 | 2021-01-04 | Impact drill used for pile foundation work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010148958.0A CN111101849B (en) | 2020-03-05 | 2020-03-05 | Impact drilling equipment convenient for cleaning holes and used for pile foundation |
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| CN111101849A CN111101849A (en) | 2020-05-05 |
| CN111101849B true CN111101849B (en) | 2020-09-01 |
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| CN202010148958.0A Active CN111101849B (en) | 2020-03-05 | 2020-03-05 | Impact drilling equipment convenient for cleaning holes and used for pile foundation |
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| CN (1) | CN111101849B (en) |
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| CN112696150B (en) * | 2021-01-07 | 2021-08-27 | 中国电建集团华东勘测设计研究院有限公司 | Device for drilling karst geological pile foundation and grouting method for construction of device |
| CN116335134B (en) * | 2023-02-23 | 2023-09-19 | 中建八局第三建设有限公司 | Construction method of soft and rigid composite pile |
| CN117145389B (en) * | 2023-10-31 | 2024-04-12 | 山东港口烟台港集团有限公司 | Foundation impact type drilling device for ocean engineering construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU866202A1 (en) * | 1980-01-09 | 1981-09-23 | Предприятие П/Я М-5703 | Expander for rising holes |
| CN207080172U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | A kind of churn drilling tools |
| CN207080173U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | Adjustable churn drilling tools |
| CN210195666U (en) * | 2019-08-02 | 2020-03-27 | 梁明哲 | Civil engineering pile foundation drill bit |
-
2020
- 2020-03-05 CN CN202010148958.0A patent/CN111101849B/en active Active
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2021
- 2021-01-04 JP JP2021000195A patent/JP6953044B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU866202A1 (en) * | 1980-01-09 | 1981-09-23 | Предприятие П/Я М-5703 | Expander for rising holes |
| CN207080172U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | A kind of churn drilling tools |
| CN207080173U (en) * | 2017-07-04 | 2018-03-09 | 深圳市孺子牛建设工程有限公司 | Adjustable churn drilling tools |
| CN210195666U (en) * | 2019-08-02 | 2020-03-27 | 梁明哲 | Civil engineering pile foundation drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111101849A (en) | 2020-05-05 |
| JP2021139276A (en) | 2021-09-16 |
| JP6953044B2 (en) | 2021-10-27 |
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