CN113550696A - Drill bit with axial rock breaking function - Google Patents
Drill bit with axial rock breaking function Download PDFInfo
- Publication number
- CN113550696A CN113550696A CN202110842208.8A CN202110842208A CN113550696A CN 113550696 A CN113550696 A CN 113550696A CN 202110842208 A CN202110842208 A CN 202110842208A CN 113550696 A CN113550696 A CN 113550696A
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- drill bit
- axial
- drilling fluid
- cavity
- percussion
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- 239000011435 rock Substances 0.000 title claims abstract description 42
- 238000005553 drilling Methods 0.000 claims abstract description 91
- 239000012530 fluid Substances 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000009527 percussion Methods 0.000 claims description 87
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 7
- 239000002905 metal composite material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Images
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
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
-
- 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
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
-
- 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
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
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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)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill bit with an axial rock breaking function. The disclosed drill bit includes a bit body, a turbine drive, and an axial percussive drill bit; the high-speed and high-pressure drilling fluid enters the drilling fluid channel through the drill bit connector and the drilling fluid flow channel from the center of the drill rod to drive the toothed turbine to drive the impact hammer to move up and down, the impact hammer impacts the axial impact drill bit to move axially downwards in the process, and when the impact hammer is far away from the axial impact drill bit, the elastic piece enables the axial impact drill bit to reset axially. The drill bit provided by the invention adopts the impact hammer to drive the impact drill bit to break rock, and the impact rock breaking force of impact drilling can be ensured, so that cost reduction and efficiency improvement can be realized efficiently.
Description
Technical Field
The invention relates to the technical field of drilling engineering, in particular to a drill bit with an axial rock breaking function.
Background
Heretofore, the main drilling and rock breaking mode in the technical field of drilling engineering is to drive a drill bit to rotate and drill into broken rock by means of a drilling tool or a screw rod, and the principle of rotary rock breaking of the drill bit is to break rock by means of shearing, grinding and auxiliary impact of the drill bit. The traditional drill bit rotary rock breaking mode is poor in drillability, and particularly when drilling in strata with high compressive strength, high abrasion resistance and the like, the hard rock stratum causes the cutting teeth and the body of the drill bit to be seriously abraded, so that the drill bit is replaced by frequently tripping the drill bit in the drilling process, and the pure drilling construction efficiency of a drilling project is seriously influenced.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the invention aims to provide a drill bit with an axial rock breaking function.
Therefore, the drill bit with the axial rock breaking function comprises:
the drill bit comprises a drill bit main body, wherein a drill rod connecting port, a drilling fluid channel and an axial percussion drill bit mounting port which are sequentially arranged and communicated along the axial direction are arranged in the drill bit main body, and an axial percussion drill bit mounting structure is arranged between the drilling fluid channel and the axial percussion drill bit mounting port; meanwhile, a cavity is also arranged in the drill bit main body, is axially positioned between the drill rod connecting port and the axial percussion drill bit mounting structure and surrounds the drilling fluid channel; the end part of the drill bit main body, which is provided with the axial percussion drill bit mounting hole, is provided with a drill bit blade;
the turbine driving device comprises a gear turbine, a rotating shaft with cranks at two ends and two impact hammers;
the axial percussion drill bit is internally provided with a drilling fluid flow channel, the inlet of the drilling fluid flow channel is arranged at one end part of the axial percussion drill bit, the other end of the axial percussion drill bit is provided with axial percussion drill bit teeth, and the outlet of the drilling fluid flow channel is arranged close to the axial percussion drill bit teeth;
the rotating shaft is movably arranged in the drill bit main body in the radial direction and radially penetrates through the drilling fluid channel and the cavity, the two cranks are located in the cavity, and the two impact hammers are respectively connected with the two cranks and located in the cavity;
the axial percussion drill bit is positioned in the axial percussion drill bit mounting opening, the upper end part of the axial percussion drill bit is matched with the axial percussion drill bit mounting structure, an elastic body is arranged between the upper end part of the axial percussion drill bit and the axial percussion drill bit mounting structure, the drilling fluid channel inlet is communicated with a drilling fluid channel, and the axial percussion drill bit teeth can extend out of the axial percussion drill bit mounting opening;
the drilling fluid drive tooth turbine that flows through drilling fluid passageway and drilling fluid runner drives the jump bit up-and-down motion, and the axial percussion bit axial downward motion is strikeed in the in-process jump bit striking, and when the jump bit kept away from axial percussion bit axial, the elastic component made axial percussion bit axial reset.
Furthermore, the cavity is divided into two cavities by the drilling fluid channel, and the two cavities are radially positioned on two sides of the drilling fluid channel.
Further, be equipped with in proper order along the axial in the drill bit main part, and communicating drilling rod connector, cavity and axial percussion bit installing port in proper order, still include turbine installing support, be equipped with the passageway along the axial in this turbine installing support, be equipped with in the turbine installing support along radial simultaneously and run through the pivot mounting hole of passageway, turbine installing support install in form in the cavity the drilling fluid passageway, and the drilling fluid passageway divides the cavity into two cavitys, is used for holding two percussion hammers respectively.
Further, the turbine mounting bracket is formed by assembling an upper bracket and a lower bracket.
Furthermore, the lower end of the turbine mounting bracket or the lower end of the lower bracket is provided with an end structure matched with the bottom of the cavity, two slideways capable of containing the base punching hammer are arranged in the end structure, the lower end of each slideway is sealed with an elastic sealing sheet, the top of the cavity is provided with an oil injection port, and lubricating oil is injected into a cavity enclosed by the cavity and the end structure.
Further, the axial percussion bit mounting structure is a boss structure.
Furthermore, the drilling fluid flow passage outlet is positioned on the side wall of the axial percussion drill bit and close to the end part provided with the axial percussion drill bit teeth.
Further, the axial section of the axial percussion drill bit is in an inverted cone shape.
Furthermore, a filter disc is installed between the axial percussion drill bit and the radial direction of the installation opening of the axial percussion drill bit, so that dust is prevented from entering the drill bit main body.
Further, telescopic shafts are arranged at two ends of the rotating shaft, mounting grooves are formed in the drill bit body, and the telescopic shafts at the two ends are mounted in the mounting grooves through bushings.
The drill bit provided by the invention adopts the impact hammer to drive the impact drill bit to break rock, and the impact rock breaking force of impact drilling can be ensured, so that cost reduction and efficiency improvement can be realized efficiently. Furthermore, two cylinder bodies are arranged in the drill bit, the double-cylinder impact hammer is adopted to drive the impact drill bit to carry out axial impact rock breaking, and the double-cylinder drive can ensure the impact rock breaking force of impact drilling, so that cost reduction and efficiency improvement measures can be realized efficiently.
Drawings
FIG. 1 is a view showing an example of the structure of a drill hammer according to the present invention when it is separated from an axial percussion drill bit;
FIG. 2 is a view showing an example of the structure of the drill hammer of the present invention striking the axial percussion drill bit;
FIG. 3 is a partially enlarged view of the structure of the telescopic shaft and the lining sliding sleeve of the present invention;
FIG. 4 is a schematic structure of a top view (a) and a bottom view (b) of an upper bracket according to an embodiment of the present invention;
FIG. 5 is a schematic view of a lower bracket structure according to an embodiment of the present invention.
Detailed Description
Unless otherwise specified, the terms or methods herein are understood or implemented using known methods as would be recognized by one of ordinary skill in the relevant art.
The directional or orientational terms axial, radial, upper, lower, bottom, inverted conical, and the like as described herein correspond to the corresponding directions or orientations in the drawings. It should be noted that these directions or orientations are used to explain the relative spatial relationship of the components or features of the present invention, and do not limit the relative spatial relationship of the components or features, and those skilled in the art should make any spatial or/and direction/orientation substitutions based on the technical concept of the present invention.
The following description of the embodiments, together with the features and advantages of the invention, will be best understood from the following detailed description of the embodiments when read in connection with the accompanying drawings.
Example (b):
referring to fig. 1 and 2, the drill bit with an axial rock breaking function of the present invention comprises: a bit body 1, a turbine drive and an axial percussion bit 12;
wherein, a drill rod connecting port 19, a drilling fluid channel and an axial percussion drill bit mounting port which are sequentially arranged and communicated along the axial direction in the drill bit main body, and an axial percussion drill bit mounting structure such as a boss structure is arranged between the drilling fluid channel and the axial percussion drill bit mounting port; meanwhile, a cavity is also arranged in the drill bit main body, is axially positioned between the drill rod connecting port and the axial percussion drill bit mounting structure and surrounds the drilling fluid channel; the end part of the drill bit main body, which is provided with the axial percussion drill bit mounting hole, is provided with a drill bit blade 8;
the turbine driving device comprises a gear turbine 17, a rotating shaft with cranks 3 at two ends and two impact hammers 5; in the specific scheme, the gear worm wheel 17 and the rotating shaft are of an integral structure, the crank 3 is welded with the rotating shaft,
a drilling fluid flow channel 11 is arranged in the axial percussion drill bit, an inlet of the drilling fluid flow channel is arranged at one end part of the axial percussion drill bit, the other end of the axial percussion drill bit is provided with axial percussion drill bit teeth 9, and an outlet of the drilling fluid flow channel is arranged close to the axial percussion drill bit teeth 9; in the specific scheme, the drilling fluid flow passage outlet is positioned on the side wall of the axial percussion drill bit and close to the end part provided with the axial percussion drill bit teeth 9;
the assembly mode of each part is as follows:
the rotating shaft is movably arranged in the drill bit main body along the radial direction and radially penetrates through the drilling fluid channel and the cavity, the two cranks are positioned in the cavity, the two impact hammers 5 are respectively connected with the two cranks 3 and positioned in the cavity, in the specific scheme, the impact hammers and the cranks are integrated or integrated connecting rods 4 are arranged on the impact hammers, and the connecting rods 4 and the cranks are connected in a mechanical connection mode, such as pins (13 and 15) in the figure; the axial percussion drill bit is positioned in the axial percussion drill bit mounting opening, the upper end part of the axial percussion drill bit is matched with the axial percussion drill bit mounting structure, an elastic body is arranged between the upper end part of the axial percussion drill bit and the axial percussion drill bit mounting structure, the drilling fluid channel inlet is communicated with a drilling fluid channel, and the axial percussion drill bit teeth can extend out of the axial percussion drill bit mounting opening;
when the drill bit with the axial rock breaking function is used, the drill bit with the axial rock breaking function is directly connected to a drill rod or a screw rod through the drill rod connecting port 19 to perform drilling, high-speed and high-pressure drilling fluid enters a drilling fluid channel through the drill bit connecting port 19 and the drilling fluid flow channel 11 to drive the toothed turbine to drive the impact hammer to move up and down, the impact hammer impacts the axial impact drill bit to move axially and downwards in the process, and when the impact hammer is far away from the axial impact drill bit, the elastic piece enables the axial impact drill bit to reset axially.
In the concrete scheme, the optional metal composite rubber spring of elastic component 7, metal composite rubber spring passes through argon arc welding and welds terminal surface under 12 tops of axial percussion bit, and the upper and lower two sides of metal composite rubber spring are the metal, and have good firm welding ability, and metal composite rubber spring is located between percussion bit 12 and drill bit main part 1, plays percussion bit 12 and is rebounded back to the effect of original position before not being strikeed after the striking, and continuous alternating is reciprocal.
For an example of a drill bit with an axial rock breaking function and an outer diameter dimension of phi 311.15mm, high-speed and high-pressure drilling fluid (the discharge capacity is 17L/s and 13Mpa) flows through and drives a tooth turbine, the drilling fluid flows through a cavity (the width dimension in the cavity is 55.32mm) formed by an upper mounting frame of the turbine, a sealing bearing, the turbine and a lower mounting frame of the turbine, 1.5Mpa pressure drop is generated, and the drilling fluid continuously enters and flows through a drilling fluid flow channel (the flow channel dimension is 20.74 mm). Also taking the drill bit as an example, the specific working principle of the drill bit is as follows:
(1) a drill rod is arranged at the drill rod connecting port 19; the drill rod is of a hollow structure, drilling fluid is injected into a hollow flow channel of the drill rod on the ground through a high-pressure pump, the drill bit is connected with the drill rod, and the drilling fluid is butted with the flow channel of the drill bit through an internal hollow flow channel;
(2) high-pressure high-speed drilling fluid flows through a drill bit connector and enters a drill bit main body, the high-pressure high-speed drilling fluid drives a gear turbine 17 to rotate continuously and rapidly, the gear turbine which rotates rapidly drives a crank 3 to rotate, the crank which rotates rapidly drives an impact hammer to rotate up and down in an alternating reciprocating mode (the rotating speed is adjusted according to the discharge amount of the injected drilling fluid, for example, the rotating speed is 180 revolutions per minute under the condition that the drilling fluid is at the discharge amount of 17L/s), in the process, the impact hammer 5 impacts an axial impact drill bit 12, and the axial impact drill bit realizes impact (the impact frequency is also adjusted according to the discharge amount of the injected drilling fluid, for example, the impact frequency is 180 revolutions per minute under the condition that the drilling fluid is at the discharge amount of 17L/s) to break rocks or shatter rocks; and then, the drill bit main body is continuously driven to rotate, further rock breaking drilling is carried out through the drill bit main body blades 8, the axial impact drill bit and the drill bit main body blades are alternately reciprocated to realize the rotation of rock breaking, deep hard rock stratum drilling can be preferably and quickly realized, and in the process, high-pressure high-speed drilling fluid flows through a drilling fluid flow channel and is quickly sprayed to the well bottom.
The axial impact drill bit further realizes high-frequency (the impact frequency is adjusted by the discharge amount of injected drilling fluid, for example, under the condition that the discharge amount of the drilling fluid is 17L/s, the impact frequency is 180 times per minute), the rock is crushed or shattered, then the drill bit body is continuously driven to rotate by the rotation of a drilling tool or a screw rod, the rock is further crushed and drilled by the blades of the drill bit body, the axial impact drill bit and the blades of the drill bit body rotate and crush the rock by alternating reciprocation, deep hard rock drilling can be realized at high speed, and finally the high-pressure high-speed drilling fluid is quickly sprayed to the bottom of the well through a drilling fluid flow passage to circulate.
In some schemes, the cavity in the drill bit is divided into a left cavity and a right cavity by a drilling fluid channel, namely the two cavities are radially positioned at two sides of the drilling fluid channel, and after the two impact hammers are assembled, the two impact hammers are respectively positioned in the left cavity and the right cavity. The balance of the drill bit work can be effectively ensured by adopting the structure.
In some other schemes, for convenient assembly, be equipped with in proper order along the axial in the drill bit main part, and communicating drilling rod connector, cavity and axial percussion bit installing port in proper order, still include the turbine installing support, be equipped with the passageway along the axial in this turbine installing support, be equipped with in the turbine installing support along radial simultaneously and run through the pivot mounting hole of passageway, the turbine installing support install in form in the cavity drilling fluid passageway, and the drilling fluid passageway is divided the cavity into two cavitys. As shown in the examples of fig. 4 and 5, the turbine mounting bracket is assembled by an upper bracket 2 and a lower bracket 14, a groove for mounting a rotating shaft is arranged between the upper bracket 2 and the lower bracket 14, the rotating shaft is mounted on the turbine lower bracket 14 through a sealing bearing 16, then the upper bracket 2 is mounted on the turbine lower bracket, the upper bracket 2 and the lower bracket 14 are connected through argon arc welding, meanwhile, the upper bracket 2 and the lower bracket 14 must tightly press the sealing bearing 16, and the welding seam between the upper bracket 2 and the lower bracket 14 requires full welding. In a further scheme, in order to realize lubrication and heat dissipation of the device in the working process, referring to fig. 5, an end structure adapted to the bottom of the cavity is arranged at the lower end of the turbine mounting bracket or the lower end of the lower bracket, two slide ways 22 capable of accommodating the impact hammer are arranged in the end structure, an elastic sealing piece 6 is sealed at the lower end of each slide way, an oil injection port is arranged at the top of the cavity, lubricating oil is filled in a cavity enclosed by the cavity and the end structure to play a role in lubrication and cooling (the lubricating oil reduces the abrasion of mechanical components on the one hand, conducts heat on the wall surface of the cavity through heat conduction on the other hand, and dissipates the heat generated by the friction of the components), and the crank impact hammer is located in the slide ways to alternately impact the elastic sealing piece in a reciprocating manner up and down so as to impact the axial impact drill. The sealing elastic sheet 6 can be made of a metal composite rubber spring, the metal composite rubber is compounded by a metal spring and rubber, the edge of the elastic sheet is made of a circle of metal material, the middle of the elastic sheet is a spring ring which is integrally connected with the edge metal, the middle spring ring is compounded with the rubber, the processing mode is that the metal ring is placed into a heated die, after rubber powder is added, the die is closed and pressurized, the metal ring is molded and cured, and a product is formed after demolding. When the equipment is assembled, the metal at the edge of the elastic sheet is welded with the equipment, the middle elastic zone deforms downwards when the impact hammer impacts, and the impact hammer recovers deformation after leaving, so that the normal operation of the equipment is ensured. Further, a choke plug 18 is arranged at the oil filling port.
In a preferred scheme, the axial section of the axial impact drill bit is in an inverted cone shape. Further, in order to prevent dust from entering the drill bit body, a filter sheet 10 is installed between the axial percussion drill bit and the axial percussion drill bit mounting port in the radial direction. The filter plate 10 is connected with the drill bit body 1 through threads, the two sides of the filter plate 10 are made of metal, and the middle of the filter plate 10 is made of flexible rubber, so that the axial impact drill bit 12 and the drill bit body 1 are prevented from being clamped due to rock debris broken in the drilling process.
In order to facilitate installation of the rotating shaft, in some schemes, referring to fig. 3, telescopic shafts 20 are arranged at two ends of the rotating shaft, an installation groove is formed in the drill bit body 1, and the telescopic shafts at two ends are installed in the installation groove through bushings. In the specific scheme, the rotating shaft is connected with the telescopic shaft 20 through threads. Positioning holes are formed in two side wall surfaces in the drill bit main body 1, and lining sliding sleeves 21 are arranged in the positioning holes. The assembled gear worm wheel 17 and the upper and lower mounting frames thereof are arranged in the drill bit main body 1; can be earlier inwards pressed by telescopic shaft 20, then slowly put into drill bit main part 1 with tooth turbine 17 after the equipment is accomplished and upper and lower mounting bracket thereof, when telescopic shaft 20 aligns with the inside lining sliding sleeve 21 of mounting groove, telescopic shaft 20 auto-eject accomplishes the installation, and wherein the inside lining sliding sleeve plays the reduction rotation friction nature of telescopic shaft when rotating.
It should be noted that the protection scope of the present invention is not limited to the specific embodiments described in the above specific embodiments, but falls within the technical scope of the present invention as long as the combination of the technical features of the claims satisfies the present invention.
Claims (10)
1. The utility model provides a broken rock function drill bit of axial, its characterized in that includes:
the drill bit comprises a drill bit main body (1), wherein a drill rod connecting port (19), a drilling fluid channel and an axial percussion drill bit mounting port which are sequentially arranged and communicated along the axial direction in the drill bit main body, and an axial percussion drill bit mounting structure is arranged between the drilling fluid channel and the axial percussion drill bit mounting port; meanwhile, a cavity is also arranged in the drill bit main body, is axially positioned between the drill rod connecting port and the axial percussion drill bit mounting structure and surrounds the drilling fluid channel; the end part of the drill bit main body, which is provided with the axial percussion drill bit mounting hole, is provided with a drill bit blade (8);
the turbine driving device comprises a gear turbine (17), a rotating shaft with cranks at two ends and two impact hammers (5);
the drilling fluid flow channel is arranged in the axial percussion drill bit (12), the inlet of the drilling fluid flow channel is arranged at one end of the axial percussion drill bit, the other end of the axial percussion drill bit is provided with axial percussion drill bit teeth (9), and the outlet of the drilling fluid flow channel is arranged close to the axial percussion drill bit teeth (9);
the rotating shaft is movably arranged in the drill bit main body in the radial direction and radially penetrates through the drilling fluid channel and the cavity, the two cranks are located in the cavity, and the two impact hammers are respectively connected with the two cranks and located in the cavity;
the axial percussion drill bit is positioned in the axial percussion drill bit mounting opening, the upper end part of the axial percussion drill bit is matched with the axial percussion drill bit mounting structure, an elastic body is arranged between the upper end part of the axial percussion drill bit and the axial percussion drill bit mounting structure, the drilling fluid channel inlet is communicated with a drilling fluid channel, and the axial percussion drill bit teeth can extend out of the axial percussion drill bit mounting opening;
the drilling fluid drive tooth turbine that flows through drilling fluid passageway and drilling fluid runner drives the jump bit up-and-down motion, and the axial percussion bit axial downward motion is strikeed in the in-process jump bit striking, and when the jump bit kept away from axial percussion bit axial, the elastic component made axial percussion bit axial reset.
2. The drill bit with an axial rock breaking function according to claim 1, wherein the cavity is divided into two cavities by the drilling fluid passage, and the two cavities are located on two sides of the drilling fluid passage in the radial direction.
3. The drill bit with the axial rock breaking function as claimed in claim 2, wherein the drill bit body is provided with a drill rod connecting port, a cavity and an axial percussion drill bit mounting port which are sequentially communicated with each other along an axial direction, the drill bit further comprises a turbine mounting bracket, the turbine mounting bracket is provided with a channel along the axial direction, the turbine mounting bracket is provided with a rotating shaft mounting hole which penetrates through the channel along a radial direction, the turbine mounting bracket is mounted in the cavity to form the drilling fluid channel, and the drilling fluid channel divides the cavity into two cavities which are respectively used for accommodating two percussion hammers.
4. The drill bit with the axial rock breaking function as claimed in claim 3, wherein the turbine mounting bracket is assembled by an upper bracket and a lower bracket.
5. The drill bit with the axial rock breaking function as claimed in claim 3 or 4, wherein the lower end of the turbine mounting bracket or the lower end of the lower bracket is provided with an end structure matched with the bottom of the cavity, two slide ways capable of accommodating the base punching hammer are arranged in the end structure, the lower end of each slide way is sealed with an elastic sealing piece, the top of the cavity is provided with an oil injection port, and a cavity defined by the cavity and the end structure is filled with lubricating oil.
6. The drill bit with axial rock breaking function of claim 1, wherein the axial percussion bit mounting structure is a boss structure.
7. Drill bit with axial rock breaking function according to claim 1, characterized in that the drilling fluid flow channel outlet is located in the axial percussion bit side wall near the end where the axial percussion bit teeth (9) are located.
8. The drill bit with the axial rock breaking function as claimed in claim 1, wherein the axial section of the axial percussion drill bit is an inverted cone.
9. The drill bit with the axial rock breaking function as claimed in claim 1, wherein a filter is installed between the axial percussion drill bit and the axial percussion drill bit installation port in a radial direction to prevent dust from entering into the drill bit body.
10. The drill bit with the axial rock breaking function as claimed in claim 1, wherein telescopic shafts are arranged at two ends of the rotating shaft, a mounting groove is formed in the drill bit body, and the telescopic shafts at the two ends are mounted in the mounting groove through bushings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842208.8A CN113550696B (en) | 2021-07-26 | 2021-07-26 | Drill bit with axial rock breaking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842208.8A CN113550696B (en) | 2021-07-26 | 2021-07-26 | Drill bit with axial rock breaking function |
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| Publication Number | Publication Date |
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| CN113550696A true CN113550696A (en) | 2021-10-26 |
| CN113550696B CN113550696B (en) | 2022-07-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050690A (en) * | 2021-11-26 | 2022-02-15 | 哈尔滨电气动力装备有限公司 | Hand-held type copper bar tight device that expands |
| CN117386294A (en) * | 2023-12-11 | 2024-01-12 | 中交广州航道局有限公司 | Underwater impact rock crushing device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1599511A1 (en) * | 1987-07-20 | 1990-10-15 | Производственное Геологическое Объединение Центральных Районов Рсфср | Pulsation-pumping hydraulic hammer |
| JPH108869A (en) * | 1996-06-19 | 1998-01-13 | Sun Tec:Kk | Down-the-hole hammer |
| US20060054322A1 (en) * | 2004-09-16 | 2006-03-16 | Rose Lawrence C | Multiple impact jar assembly and method |
| CN102900371A (en) * | 2012-10-18 | 2013-01-30 | 中国石油天然气股份有限公司 | Impacting and rotary-cut combined rock breaking tool |
| CN105221068A (en) * | 2015-11-10 | 2016-01-06 | 西南石油大学 | Percussion is utilized to improve the New Type of PDC Bit of heart portion efficiency of breaking rock |
| CN205154006U (en) * | 2015-09-14 | 2016-04-13 | 北京三仁宝业科技发展有限公司 | Impacted style quartering hammer |
| CN206942656U (en) * | 2017-03-31 | 2018-01-30 | 西南石油大学 | Drilling tool with axial waterpower pulse and circumferential percussion |
| CN109025804A (en) * | 2018-10-10 | 2018-12-18 | 东北石油大学 | Turbine type axial impact device |
| CN209724214U (en) * | 2019-01-29 | 2019-12-03 | 中国石油化工股份有限公司 | A kind of vibratory impulse drilling speed tool |
| CN111364917A (en) * | 2020-04-03 | 2020-07-03 | 西南石油大学 | Drill bit for realizing axial impact function by utilizing turbine and gear |
| CN212201883U (en) * | 2020-04-10 | 2020-12-22 | 韩民生 | Rotary impact combined drill bit for rapidly piling rock-soil layer |
-
2021
- 2021-07-26 CN CN202110842208.8A patent/CN113550696B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1599511A1 (en) * | 1987-07-20 | 1990-10-15 | Производственное Геологическое Объединение Центральных Районов Рсфср | Pulsation-pumping hydraulic hammer |
| JPH108869A (en) * | 1996-06-19 | 1998-01-13 | Sun Tec:Kk | Down-the-hole hammer |
| US20060054322A1 (en) * | 2004-09-16 | 2006-03-16 | Rose Lawrence C | Multiple impact jar assembly and method |
| CN102900371A (en) * | 2012-10-18 | 2013-01-30 | 中国石油天然气股份有限公司 | Impacting and rotary-cut combined rock breaking tool |
| CN205154006U (en) * | 2015-09-14 | 2016-04-13 | 北京三仁宝业科技发展有限公司 | Impacted style quartering hammer |
| CN105221068A (en) * | 2015-11-10 | 2016-01-06 | 西南石油大学 | Percussion is utilized to improve the New Type of PDC Bit of heart portion efficiency of breaking rock |
| CN206942656U (en) * | 2017-03-31 | 2018-01-30 | 西南石油大学 | Drilling tool with axial waterpower pulse and circumferential percussion |
| CN109025804A (en) * | 2018-10-10 | 2018-12-18 | 东北石油大学 | Turbine type axial impact device |
| CN209724214U (en) * | 2019-01-29 | 2019-12-03 | 中国石油化工股份有限公司 | A kind of vibratory impulse drilling speed tool |
| CN111364917A (en) * | 2020-04-03 | 2020-07-03 | 西南石油大学 | Drill bit for realizing axial impact function by utilizing turbine and gear |
| CN212201883U (en) * | 2020-04-10 | 2020-12-22 | 韩民生 | Rotary impact combined drill bit for rapidly piling rock-soil layer |
Non-Patent Citations (1)
| Title |
|---|
| 张海平: "井下动力驱动的旋冲钻井工具设计计算与试验", 《机械设计与研究》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050690A (en) * | 2021-11-26 | 2022-02-15 | 哈尔滨电气动力装备有限公司 | Hand-held type copper bar tight device that expands |
| CN114050690B (en) * | 2021-11-26 | 2024-02-20 | 哈尔滨电气动力装备有限公司 | Handheld copper bar expanding device |
| CN117386294A (en) * | 2023-12-11 | 2024-01-12 | 中交广州航道局有限公司 | Underwater impact rock crushing device |
| CN117386294B (en) * | 2023-12-11 | 2024-02-20 | 中交广州航道局有限公司 | Underwater impact rock crushing device |
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