CN115341845A - Piling drilling machine for hydraulic impact crushing and cutting composite drill bit - Google Patents
Piling drilling machine for hydraulic impact crushing and cutting composite drill bit Download PDFInfo
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- CN115341845A CN115341845A CN202210792031.XA CN202210792031A CN115341845A CN 115341845 A CN115341845 A CN 115341845A CN 202210792031 A CN202210792031 A CN 202210792031A CN 115341845 A CN115341845 A CN 115341845A
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- 238000005553 drilling Methods 0.000 title claims abstract description 94
- 239000002131 composite material Substances 0.000 title claims abstract description 76
- 238000010276 construction Methods 0.000 claims abstract description 48
- 239000011435 rock Substances 0.000 claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 claims description 51
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000001012 protector Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000009527 percussion Methods 0.000 claims 4
- 230000035939 shock Effects 0.000 claims 2
- 239000002173 cutting fluid Substances 0.000 claims 1
- 239000004927 clay Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
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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
- E21B12/00—Accessories for drilling tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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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
- E21B6/00—Drives for drilling with combined rotary and percussive action
-
- 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
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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 pile-driving drilling machine for a hydraulic impact crushing and cutting composite drill bit, which comprises a drilling machine, wherein the drilling machine comprises a power head, an output shaft of the power head is connected with the composite drill bit through a drill rod, and the composite drill bit comprises a cutter unit with a blade, a hydraulic impact combination unit, a cutter head, a shield body, an oil collector and a central rotary joint; the cutter head is provided with at least one cutter unit with a blade and at least one hydraulic impact combination unit, the upper part of the cutter head is connected with the shield body, and the upper part of the shield body is connected with the oil collector; the upper part of the oil collector is connected with a drill rod, and the drill rod is connected with an output shaft. According to the invention, the pressure and the torque of the power head are transmitted to the cutter head through the drill rod, the oil collector and the shield body, so that the cutter head rotates and drives the cutter unit with the blade and the hydraulic impact combination unit on the cutter head to rotate together, the switching between the cutter unit with the blade and the hydraulic impact combination unit is realized through the control device, and the aim of one-time quick and efficient construction of the pile drilling machine under the condition of covering a soil layer and a rock layer combined geology is further realized.
Description
Technical Field
The invention belongs to the field of piling mechanical equipment for geotechnical engineering pile foundation construction, and particularly relates to a piling drilling machine of a hydraulic impact crushing and cutting composite drill bit.
Background
Along with the acceleration of each basic construction step in China, the scale of the building is larger and larger, the underground space is deeper and deeper downwards, so that the bearing capacity of the pile foundation of the building is also required to be larger and larger, and the foundation pit support structure is deeper and deeper. The stratum capable of providing the maximum bearing capacity for the pile body is the rock stratum, and if the pile body can be deeply driven into the rock stratum, the bearing capacity of the pile body can be greatly improved, and the seismic capacity of a building on the pile body can be effectively improved. In the conventional piling machinery, when pile holes are constructed, some machines are only suitable for soft soil and sandy gravel strata, and no good construction method is provided for hard rock strata; and some drilling machines are only suitable for complete hard rock layers, and no good construction method is provided for clay and sand gravel strata covered on the hard rock layers, so that the construction is difficult. The geotechnical construction market urgently needs an engineering drilling machine which can comprehensively and quickly construct the composite stratum.
Disclosure of Invention
In order to solve the technical problems, the invention provides a pile-driving drilling machine for hydraulic impact crushing and cutting composite drill bits, which can quickly realize quick construction of one drilling machine under the composite geological condition of clay, sandy gravel stratum and rock stratum simultaneously by adopting a mode of combining high-frequency hydraulic impact and rotary cutting and switching the drilling process on the composite drill bits, thereby greatly improving the construction efficiency, reducing the construction cost and better ensuring the construction quality. The pile driving drilling machine can not only finish single-hole drilling construction, but also simultaneously drill 2-3 holes, thereby realizing the construction of secant piles.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pile-driving drilling machine for a hydraulic impact crushing and cutting composite drill bit comprises a drilling machine, wherein the drilling machine comprises a walking machine, a power station, an attitude arm, a big arm and a power head;
the walking device is positioned at the bottom of the drilling machine and used for enabling the drilling machine to rotate freely, the power station is positioned above the walking device and used for providing power for the drilling machine, each attitude arm is used for adjusting the action of the drilling machine so as to reach the position required by construction, the power head is arranged on the large arm and is the main part of power output of the drilling machine;
the output shaft of the power head is connected with a composite drill bit through a drill rod, and the composite drill bit comprises a cutter unit with a blade, a hydraulic impact combination unit, a cutter head, a shield body, an oil collector and a central rotary joint;
the cutter head is in a ring shape or a round cake shape, and is provided with at least one cutting knife unit with a blade and at least one hydraulic impact combination unit;
the upper part of the cutter head is connected with the shield body; the upper part of the shield body is connected with the oil collector; the upper part of the oil collector is connected with the drill rod, and the drill rod is connected with the output shaft; the central swivel joint is sleeved on the drill rod, the central swivel joint is connected with a hydraulic oil pipe on the drilling machine, the central swivel joint is used for conveying driving hydraulic oil of the drilling machine to rotate on the composite drilling head, the pressure and the torque of the power head pass through the drill rod, the oil collector and the shield body to be transmitted to the cutter head, the cutter head rotates and drives the cutter head to enable the cutting edge cutter unit and the hydraulic impact combination unit to rotate together, and the cutting edge cutter unit and the hydraulic impact combination unit are switched through a control device, so that the purpose of one-time quick and efficient construction of the pile-driving drilling machine under the composite geological condition of covering soil layers and rock layers is achieved.
Preferably, the power head is provided with at least one said output shaft for driving one or more compound drill bits; when the unit head is equipped with one during the output shaft, big arm is installed at least one the unit head, works as the unit head is equipped with at least two during the output shaft, big arm is installed one the unit head.
Preferably, when a plurality of the composite drill bits work simultaneously, the oil collector is sleeved with a connected core protector, and the connected core protector is used for preventing the composite drill bits from interfering and colliding with each other during rotation work.
Preferably, when a plurality of the composite drill bits work simultaneously, the composite drill bits are arranged linearly, and the power head drives the plurality of the composite drill bits arranged linearly, so that the secant pile construction is completed conveniently.
Preferably, the linear arrangement is a linear arrangement or a curved arrangement.
Preferably, when a plurality of the composite drill bits work simultaneously, the drill rod is provided with a guide device, the guide device is used for limiting the composite drill bits, one end of the guide device is sleeved on the drill rod, the drill rod can axially rotate or axially move along the central shaft of the drill rod relative to the guide device, and the other end of the guide device is fixedly connected with a drill frame of the drilling machine.
Preferably, the central rotary joint is sleeved on the drill rod and is close to the oil collector, or the central rotary joint is arranged at the top or the lower part of the power head, the hydraulic oil pipe is arranged in the drill rod, the drill rod and the hydraulic oil pipe are relatively static, the drill rod and the hydraulic oil pipe are one through long, the drill rod and the hydraulic oil pipe are not required to be detached in the drilling process, and one rod drills to the bottom of a hole during drilling.
Preferably, the pile driving drill of the hydraulic impact crushing and cutting composite drill bit according to the claim, the hydraulic impact combination unit comprises an impact hammer plate, a guide sleeve, a hydraulic hammer and an extension section;
the uide bushing part embedded in the blade disc, the impact hammer board part is in slide in the uide bushing, the extension joint is installed the blade disc upside, the hydraulic hammer passes through extension joint bed hedgehopping is fixed blade disc upper portion, the center pin coincidence of impact hammer board, uide bushing, hydraulic hammer and extension joint to it is parallel with the blade disc the central axis, just in time strike the impact hammer board with the hydraulic hammer after guaranteeing the installation to accomplish.
Preferably, the cutting knife unit with the blade comprises a cutting knife with the blade, an oil cylinder and an oil cylinder pin shaft, wherein the oil cylinder is embedded in the cutter disc, the cutting knife with the blade is installed on the lower portion of the oil cylinder, the cutting knife with the oil cylinder is connected with the oil cylinder through the oil cylinder pin shaft, the oil cylinder is provided with a hydraulic lock, and the hydraulic lock is used for controlling the oil cylinder so that the cutting knife with the blade is locked after extending out of a set length.
Preferably, the blade cutter may be provided with bucket teeth or soft soil layer construction alloy.
Preferably, the power head with the composite drill bit may be mounted on a rig-like frame, such as a column pile driver rig or a gantry type frame pile driver rig.
Compared with the prior art, the invention has the following beneficial effects:
according to the pile-driving drilling machine, the hydraulic impact combination unit and the cutter unit with the edge which can be freely switched are arranged on the cutter head, so that the pile-driving drilling machine can be used for construction all the time under the geological change that a clay layer and a sand and gravel layer extend downwards to a rock layer, full coverage crushing in a hole is realized, the purpose of construction is achieved, a drill bit and a drilling tool do not need to be replaced, the time for replacing the drill bit and the drilling tool is shortened, the construction efficiency is greatly improved, the construction cost is reduced, and meanwhile, the construction quality is better guaranteed. In addition, the power head of the pile-driving drilling machine can be a single output shaft or a plurality of output shafts, the pile-driving drilling machine can not only finish single-hole drilling construction, but also drive a plurality of groups of composite drill bits to simultaneously construct, so that the construction of the secant pile can be finished, and the hydraulic grab bucket and hydraulic double-wheel milling equipment for continuous walls introduced abroad in the past are replaced.
Drawings
FIG. 1 is a schematic diagram of a pile driving drill of a hydraulic impact crushing and cutting composite drill bit;
FIG. 2 is a schematic front view of a composite drill bit of a pile driver drill for hydraulic percussive demolition and cutting composite drill bits;
FIG. 3 is a schematic bottom view of a disk of a pile driver drill for a combination hydraulic percussive chipping and cutting drill;
FIG. 4 is a schematic view of the annular cutter head of a pile driver drill of a combination hydraulic percussive crushing and cutting drill;
FIG. 5 is a schematic diagram of a hydraulic impact unit of a pile driving drill for hydraulic impact crushing and cutting a composite drill bit;
FIG. 6 is a schematic view of a blade cutter unit of a pile driving drill for a combined hydraulic impact crushing and cutting drill bit;
FIG. 7 is a schematic view of a composite drill head structure driven by a power head of a pile driver drill for hydraulic percussive demolition and cutting composite drill bits;
FIG. 8 is a schematic view of a multiple composite bit structure driven by one power head of a pile driver drill for hydraulic percussive demolition and cutting composite bits;
FIG. 9 is a schematic view of the linear arrangement of the composite drill bit of FIG. 6;
FIG. 10 is a schematic diagram of a configuration in which the central swivel joint of a pile driver drill for a hydraulic percussive demolition and cutting composite drill bit is mounted on top of a power head;
FIG. 11 is a schematic view of a conjoined retainer mounting structure of a pile driver drill for a hydraulic percussive breaking and cutting composite drill bit;
in the figure: 1. a drilling machine; 11. a power head; 111. an output shaft; 2. a composite drill bit; 21. a blade cutter unit; 211. a blade-equipped cutter; 212. an oil cylinder; 213. a cylinder pin shaft; 22. a hydraulic impact combination unit; 221. impacting the hammer plate; 222. a guide sleeve; 223. a hydraulic hammer; 224. lengthening the section; 23. a cutter head; 24. a shield body; 25. an oil collector; 26. a drill stem; 27. a central swivel joint; 3. a conjoined heart protecting device; 4. a pilot device.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments of the present invention.
Referring to fig. 1-11, a pile-driving drilling machine for hydraulic impact crushing and cutting composite drill bits comprises a drilling machine 1, wherein the drilling machine 1 comprises a walking machine, a power station, a posture arm, a big arm and a power head 11;
the walking is positioned at the bottom of the drilling machine 1 and used for enabling the drilling machine to rotate freely, the power station is positioned above the walking and used for providing power for the drilling machine 1, each attitude arm is used for adjusting the action of the drilling machine so as to reach the position required by construction, the power head 11 is arranged on the large arm, and the power head 11 is the main part of power output of the drilling machine 1;
an output shaft 111 of the power head 11 is connected with a composite drill bit 2 through a drill rod 26, and the composite drill bit 2 comprises a cutter unit 21 with a blade, a hydraulic impact combination unit 22, a cutter head 23, a shield body 24, an oil collector 25 and a central rotary joint 27;
the cutter disc 23 is in a ring shape or a round cake shape, and the cutter disc 23 is provided with at least one cutter unit 21 with a blade and at least one hydraulic impact combination unit 22;
the upper part of the cutter head 23 is connected with the shield body 24; the upper part of the shield body 24 is connected with an oil collector 25; the upper part of the oil collector 25 is connected with a drill rod 26, and the drill rod 26 is connected with an output shaft 111; the central rotary joint 27 is sleeved on the drill rod 26, the central rotary joint 27 is connected with a hydraulic oil pipe on the drilling machine 1, the central rotary joint 27 is used for conveying driving hydraulic oil of the drilling machine 1 to the rotary composite drill bit 2, the pressure and the torque of the power head 11 are transmitted to the cutter head 23 through the drill rod 26, the oil collector 25 and the shield body 24, the cutter head 23 is made to rotate and drive the cutter unit 21 with the blade and the hydraulic impact combination unit 22 on the cutter head 23 to rotate together, switching of the cutter unit 21 with the blade and the hydraulic impact combination unit 22 is achieved through a control device, and therefore the purpose of one-time quick and efficient construction of the pile-driving drilling machine under the composite geological condition of covering soil layers and rock layers is achieved.
In one embodiment, the power head 11 is provided with at least one output shaft 111 for driving one or more compound drill bits 2; when the power head 11 is provided with one output shaft 111, the large arm is provided with at least one power head 11, and when the power head 11 is provided with at least two output shafts 111, the large arm is provided with one power head 11.
Specifically, during actual construction, single-hole drilling construction is sometimes needed, and at the moment, the drilling machine only needs to be provided with the power head 11 with the output shaft 111, namely only one composite drill bit 2 works; sometimes, multiple holes are required to be drilled simultaneously for construction, namely, for the construction of the secant pile, at this time, a drilling machine can be provided with a plurality of power heads 11 with one output shaft 111, and also can be provided with one power head 11 with a plurality of output shafts 111, so that the construction of the secant pile can be completed by simultaneously working a plurality of composite drill bits 2, in order to meet the construction requirements, the plurality of composite drill bits 2 can be arranged in a straight line or in a curve, and of course, in actual operation, most of the composite drill bits 2 work simultaneously in 2-3.
In one embodiment, when a plurality of composite drill bits 2 work simultaneously, the oil collector is sleeved with a connected core retainer 3, and the connected core retainer 3 is used for preventing the plurality of composite drill bits 2 from interfering and colliding with each other during rotation work.
In one embodiment, when a plurality of composite drill bits 2 work simultaneously, the drill rod 26 is provided with the pilot 4, the pilot 4 is used for limiting the composite drill bits 2, one end of the pilot 4 is sleeved on the drill rod 26, the drill rod 26 can axially rotate or axially move along the central shaft of the drill rod 26 relative to the pilot 4, and the other end of the pilot 4 is fixedly connected with a drill frame of the drilling machine 1.
Particularly, when a plurality of compound drill bits 2 work simultaneously, the effect of disjunctor heart-protecting ware 3 and leading ware 4 lies in avoiding a plurality of compound drill bits 2 mutual interference collision when self is rotatory, guarantees going on smoothly of secant pile construction.
In one embodiment, the central swivel joint 27 is sleeved on the drill rod 26 and is next to the oil collector 25, or the central swivel joint 27 is arranged on the top or lower part of the power head 11, the hydraulic oil pipe is arranged in the drill rod 26, the drill rod 26 and the hydraulic oil pipe are relatively static, the drill rod 26 and the hydraulic oil pipe are one through long, and the drill rod and the hydraulic oil pipe are not detached during drilling, and one rod is drilled to the bottom of a hole during drilling.
In one embodiment, the hydraulic impact combination unit 22 includes an impact hammer plate 221, a guide sleeve 222, a hydraulic hammer 223, and an extension section 224;
the guide sleeve 222 is partially embedded in the cutter disc 23, the impact hammer plate 221 partially slides in the guide sleeve 222, the extension joint 224 is installed on the upper side of the cutter disc 23, the hydraulic hammer 223 is fixed on the upper portion of the cutter disc 23 through the elevation of the extension joint 224, the central axes of the impact hammer plate 221, the guide sleeve 222, the hydraulic hammer 223 and the extension joint 224 are overlapped and parallel to the central axis of the cutter disc 23, so that the hydraulic hammer 223 can just strike the impact hammer plate 221 after installation is completed, in the embodiment, a gap is left between the lower end of the hydraulic hammer 223 and the upper portion of the impact hammer plate 221, of course, the gap should be smaller than the displacement of the hydraulic hammer 223, and the hydraulic hammer 223 can also be replaced by a pneumatic down-the-hole hammer or other similar mechanisms with the same striking effect.
Specifically, the impact hammer plate 221 is mounted inside the cutter head 23, that is, the upper part of the impact hammer plate 221 is impacted downwards by the hydraulic hammer 223, so that the impact hammer plate 221 moves downwards relative to the cutter head 23 to generate impact force, and impact crushing on a rock layer or other hard construction layer is completed.
In a certain embodiment, the knife unit 21 with blade includes a knife 211 with blade, an oil cylinder 212, and an oil cylinder pin 213, the oil cylinder 212 is embedded in the cutter head 23, the knife 211 with blade is installed at the lower part of the oil cylinder 212, the knife 211 with blade and the oil cylinder 212 are connected by the oil cylinder pin 213, for convenience of control, the oil cylinder 212 is provided with a hydraulic lock, the hydraulic lock is used to control the oil cylinder 212, so as to lock the knife 211 with blade after the knife 211 with blade extends out to a set length, the oil cylinder 212 in this embodiment may be replaced by other hinge mechanisms, and the knife 211 with blade may be installed with bucket teeth or soft soil layer construction alloy to meet different construction requirements.
The power head 11 with the composite drill bit 2 in the above embodiment may also be mounted on a rig-like frame, such as a column pile driver rig or a gantry type frame pile driver rig.
The working principle is as follows: the general geological conditions are respectively covering soil layers, sand and gravel layers, strong weathering, medium weathering, slight weathering and the like from the ground to the bottom, and different strata need different construction equipment from soft to hard.
Firstly, selecting a pile-driving drilling machine or other frames with a proper power head 11 according to construction requirements, when a composite drill bit 2 is constructed on softer strata such as soil layers or sand and gravel layers, operating a hydraulic operation valve of the drilling machine to supply oil to an oil cylinder 212 at the moment, wherein the oil cylinder 212 stretches and retracts to drive a cutter 211 with a blade to stretch and retract relative to a cutter disc 23, when the cutter 211 with the blade extends to a set length, the cutter 211 with the blade is higher than an impact hammer plate 221 at the moment, locking the position of the cutter 211 with the blade through a hydraulic lock arranged on the oil cylinder 212, starting to work a plurality of groups of cutters 211 with the blade at the moment, cutting and stirring the strata, pumping generated drilling slag out of the bottoms or discharging the drilling slag out of the bottoms through a drill rod with a positive circulating pump and a negative circulating pump on the drilling machine, and enabling the drilling hole to be drilled on the sandy soil strata quickly and smoothly; when the composite drill bit 2 is constructed on hard stratums such as a rock stratum, if a drilling machine operator still adopts a cutting method to drill in the rock, the construction efficiency is obviously reduced, and the construction cost is also sharply increased, at the moment, the drilling machine operator unlocks the hydraulic lock, and operates a hydraulic operation valve of the drilling machine to withdraw the cutter 211 with the blade, so that the cutter 211 with the blade is lower than the impact hammer plate 221 in the hydraulic impact combination unit 22, at the moment, the drilling machine 1 is switched to the hydraulic impact combination unit 22, the composite drill bit 2 rotates to drive the impact hammer plates 221 to work, the rock is crushed by rotation and impact, namely, a hydraulic impact crushing working mode is realized, and thus the piling drilling machine adopts an impact crushing drilling method to construct on the rock stratum, the drilling machine drilling efficiency is high, and the drilling tool consumption is low. In addition, because the impact hammer plate 221 for impact crushing is mostly formed by pressing spherical alloy, the spherical alloy drill bit basically has no capacity of cutting soft soil, when the impact crushing is drilled to a certain depth, if a karst cave or a soil filling cavity is clamped in a rock stratum, if the drilling method for impact crushing is also adopted, the drilling construction cannot be effectively carried out, at the moment, an operator can extend the cutter 211 with the blade through a hydraulic operation valve, so that the cutter 211 with the blade is higher than the impact hammer plate 221, and the cutter 211 with the blade can carry out cutting drilling construction on soft clay in the cavity area, thereby ensuring that the drilling machine can obtain very high construction efficiency in the soft clay stratum.
Therefore, the piling drilling machine with the composite drill bit 2 can smoothly complete most of piling construction in geotechnical engineering.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (11)
1. A pile-driving drilling machine of a hydraulic impact crushing and cutting composite drill bit comprises a drilling machine (1), wherein the drilling machine (1) comprises a walking part, a power station, a posture arm, a big arm and a power head (11);
the walking mechanism is positioned at the bottom of the drilling machine (1) and used for enabling the drilling machine to rotate freely, the power station is positioned above the walking mechanism and used for providing power for the drilling machine (1), each attitude arm is used for adjusting the action of the drilling machine so as to reach the position required by construction, the power head (11) is installed on the large arm, and the power head (11) is the main part of power output of the drilling machine (1);
the drilling device is characterized in that an output shaft (111) of the power head (11) is connected with a composite drill bit (2) through a drill rod (26), and the composite drill bit (2) comprises a cutter unit (21) with a blade, a hydraulic impact combination unit (22), a cutter head (23), a shield body (24), an oil collector (25) and a central rotary joint (27);
the cutter disc (23) is in a circular ring shape or a round cake shape, and at least one cutting knife unit (21) with a blade and at least one hydraulic impact combination unit (22) are installed on the cutter disc (23);
the upper part of the cutter head (23) is connected with the shield body (24); the upper part of the shield body (24) is connected with the oil collector (25); the upper part of the oil collector (25) is connected with the drill rod (26), and the drill rod (26) is connected with the output shaft (111); central authorities ' swivel joint (27) suit is in on drilling rod (26), central authorities ' swivel joint (27) with hydraulic pressure oil pipe on drilling machine (1) connects, central authorities ' swivel joint (27) are used for carrying the drive hydraulic oil of drilling machine (1) rotatory on compound drill bit (2), the pressure and the moment of torsion of unit head (11) pass through drilling rod (26) oil collector (25) shield body (24) transmit to on blade disc (23), make blade disc (23) are rotatory and drive on blade disc (23) area sword cutter unit (21) with hydraulic shock assembled element (22) are rotatory together, realize through controlling means area sword cutter unit (21) with the switching of hydraulic shock assembled element (22), and then realize under covering soil layer and the rock stratum complex geological condition, the purpose of the quick high-efficient construction of pile drilling machine one time.
2. A pile drill of the hydraulic percussion breaking and cutting composite drill bit according to claim 1, characterized in that the power head (11) is provided with at least one said output shaft (111) for driving one or more composite drill bits (2); when unit head (11) is equipped with one when output shaft (111), big arm is installed at least one unit head (11), works as unit head (11) are equipped with at least two when output shaft (111), big arm is installed one unit head (11).
3. The pile-driving drilling machine for hydraulic impact crushing and cutting composite drill bits as claimed in claim 2, characterized in that when a plurality of composite drill bits (2) work simultaneously, the oil collector (25) is sleeved with a connected core protector (3), and the connected core protector (3) is used for preventing the plurality of composite drill bits (2) from interfering and colliding with each other during rotation work.
4. The pile driving drill for hydraulic impact crushing and cutting composite drill bit as recited in claim 2, characterized in that when a plurality of said composite drill bits (2) are working simultaneously, said composite drill bits (2) are arranged linearly, and said power head (11) drives a plurality of said composite drill bits (2) arranged linearly for completing a bite pile construction.
5. The pile drill of a hydraulic percussive breaking and cutting compound drill bit as set forth in claim 4, wherein the linear arrangement is a straight or curved arrangement.
6. The pile driver drill of hydraulic impact breaking and cutting composite drill bit as recited in claim 2, characterized in that when a plurality of composite drill bits (2) are working simultaneously, the drill rod (26) is provided with a guide (4), the guide (4) is used for limiting the composite drill bits (2), one end of the guide (4) is sleeved on the drill rod (26), the drill rod (26) can rotate or move axially along the central axis of the drill rod (26) relative to the guide (4), and the other end of the guide (4) is fixedly connected with a drill frame of the drill (1).
7. The pile-driving drilling machine of a hydraulic impact crushing and cutting composite drill bit as claimed in claim 1, characterized in that the central swivel joint (27) is sleeved on the drill rod (26) and is next to the oil collector (25), or the central swivel joint (27) is arranged on the top or lower part of the power head (11), the hydraulic oil pipe is arranged in the drill rod (26), the drill rod (26) and the hydraulic oil pipe are relatively static, the drill rod (26) and the hydraulic oil pipe are one through long and are not detached during drilling, and one rod drills to the bottom of a hole during drilling.
8. The pile drill of a hydraulic percussion breaking and cutting composite drill bit according to claim 1, characterized in that the hydraulic percussion combined unit (22) comprises a percussion hammer plate (221), a guide sleeve (222), a hydraulic hammer (223), an elongated joint (224);
guide sleeve (222) part is embedded in blade disc (23), impact hammer plate (221) part is in slide in guide sleeve (222), extension section (224) is installed blade disc (23) upside, hydraulic hammer (223) are passed through extension section (224) bed hedgehopping is fixed blade disc (23) upper portion, strike the center pin coincidence of hammer plate (221), guide sleeve (222), hydraulic hammer (223) and extension section (224) to be parallel with blade disc (23) the central axis, strike impact hammer plate (221) in time with hydraulic hammer (223) after guaranteeing the installation to accomplish.
9. The pile drilling machine for hydraulic impact crushing and cutting of the composite drill bit is characterized in that the cutter unit (21) with the blade comprises a cutter (211) with the blade, an oil cylinder (212) and an oil cylinder pin shaft (213), the oil cylinder (212) is embedded in the cutter head (23), the cutter (211) with the blade is installed on the lower portion of the oil cylinder (212), the cutter (211) with the blade is connected with the oil cylinder (212) through the oil cylinder pin shaft (213), the oil cylinder (212) is provided with a hydraulic lock, and the hydraulic lock is used for controlling the oil cylinder (212) so that the cutter (211) with the blade is locked after the cutter (211) with the blade extends out of a set length.
10. The piling drilling machine of hydraulic impact crushing and cutting composite drill bit as claimed in claim 9, characterized in that the cutting blade (211) can be installed with bucket tooth or soft soil construction alloy.
11. A pile driving drill for hydraulic percussive breaking and cutting composite drill bit according to any of claims 1-10, c h a r a c t e r i z e d in that the power head (11) with the composite drill bit (2) is mountable on a frame of a similar drill, such as a column pile frame drill or a gantry pile driving drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210792031.XA CN115341845B (en) | 2022-07-07 | 2022-07-07 | Piling drilling machine for hydraulic impact crushing and cutting composite drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210792031.XA CN115341845B (en) | 2022-07-07 | 2022-07-07 | Piling drilling machine for hydraulic impact crushing and cutting composite drill bit |
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| Publication Number | Publication Date |
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| CN115341845A true CN115341845A (en) | 2022-11-15 |
| CN115341845B CN115341845B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210792031.XA Active CN115341845B (en) | 2022-07-07 | 2022-07-07 | Piling drilling machine for hydraulic impact crushing and cutting composite drill bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118187659A (en) * | 2024-04-06 | 2024-06-14 | 山东力强机械有限责任公司 | Drill bit device of drilling machine |
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| CN204738747U (en) * | 2015-05-28 | 2015-11-04 | 山东中瑞工程机械有限公司 | Formula down --hole hammer tied in a bundle |
| CN114075923A (en) * | 2021-11-10 | 2022-02-22 | 陶德明 | Combined drill bit of hydraulic down-the-hole hammer secant pile |
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Patent Citations (5)
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| US20090071715A1 (en) * | 2006-04-21 | 2009-03-19 | Sandvik Mining And Construction Oy | Method of controlling operation of rock drilling rig, and rock drilling rig |
| CN203161084U (en) * | 2013-03-15 | 2013-08-28 | 山东鑫国重机科技有限公司 | Multifunctional rotary drilling rig |
| CN204511298U (en) * | 2015-03-13 | 2015-07-29 | 河北国峰重工机械有限公司 | A kind of water drilling rig with dedusting and centering function |
| CN204738747U (en) * | 2015-05-28 | 2015-11-04 | 山东中瑞工程机械有限公司 | Formula down --hole hammer tied in a bundle |
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| CN118187659A (en) * | 2024-04-06 | 2024-06-14 | 山东力强机械有限责任公司 | Drill bit device of drilling machine |
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| CN115341845B (en) | 2023-03-10 |
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