CN117108205A - Pulse type supercharging jet drilling device - Google Patents
Pulse type supercharging jet drilling device Download PDFInfo
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- CN117108205A CN117108205A CN202311362695.3A CN202311362695A CN117108205A CN 117108205 A CN117108205 A CN 117108205A CN 202311362695 A CN202311362695 A CN 202311362695A CN 117108205 A CN117108205 A CN 117108205A
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- drill bit
- sleeve
- drilling
- hollow tube
- rotary joint
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- 238000005553 drilling Methods 0.000 title claims abstract description 86
- 239000007788 liquid Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 32
- 238000005192 partition Methods 0.000 description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The application relates to the technical field of drilling, in particular to a pulse type pressurizing jet drilling device, which comprises a drill rod, wherein one end of the drill rod is provided with a drill bit, the other end of the drill rod is provided with a rotary joint, the drill bit is provided with a first nozzle, the liquid inlet end of the first nozzle is communicated with the inside of the drill rod, the rotary joint comprises a sleeve and a hollow shaft which are rotationally connected, the sleeve is positioned in the drill rod, the outer wall of the sleeve is sleeved with a first piston, the first piston is in sliding seal with the inner wall of the drill rod, the hollow shaft faces the outside of the drill rod and is sequentially communicated with a water pipe and a high-pressure pump, and the water pipe is provided with a first one-way valve; the rotary joint is provided with an adjusting piece which is used for adjusting the distance between the rotary joint and the drill bit; the sleeve is provided with a flow blocking piece which extends towards the direction of the drill bit and is used for blocking drilling fluid in the drill rod from flowing to the first nozzle when the flow blocking piece is abutted against the drill bit. The application can crush the underground rock with high efficiency and reliability by a simple underground structure.
Description
Technical Field
The application relates to the technical field of drilling, in particular to a pulse type pressurizing jet drilling device.
Background
The drilling of holes from the earth formation using mechanical equipment or man power is known as drilling and is generally referred to as drilling the well bore and large diameter water supply well by exploring or developing liquid and gaseous minerals such as oil, gas, etc. The application of well drilling in national economy construction is very wide. The drilling machine is mechanical equipment for driving the drilling tool to drill underground to obtain physical geological data in the exploration or mineral resource (including solid ore, liquid ore, gas ore and the like) development, and mainly has the function of driving the drilling tool to break hole bottom rock, and downwards feeding or lifting the drilling tool in the hole, and can be used for drilling rock cores, ore cores, rock fragments, gas samples, liquid samples and the like to ascertain the conditions of underground geology, mineral resources and the like.
In addition to the rock breaking of the drilling machine, a jet hydraulic rock breaking mode exists, but under the current drilling condition, jet is mainly used for assisting in rock breaking, if hydraulic direct rock breaking is needed, the pressure of jet is needed to be increased, the first is that high-pressure drilling fluid is conveyed to the underground through a high-pressure pump on the ground, and the high-pressure drilling fluid directly ejects high-speed jet to the underground rock through a first nozzle so as to break the rock; the second is to arrange a booster in the pit, and jet pulse jet flow is sprayed to the rock in the pit through the booster, so that the rock breaking efficiency of the pulse jet flow is higher than that of the continuous jet flow under the same water pressure.
In view of the above-mentioned related art, the applicant believes that in the related art, the efficiency of continuous jet rock breaking is low and the cost is high, but the supercharger used for pulse jet rock breaking has the problem of complex internal structure or reversing control, and the supercharger is easy to damage due to the complex structure and reversing control, so that the reliability of the supercharger is reduced.
Disclosure of Invention
The application aims to provide a pulse pressurized jet drilling device which is used for realizing pulse jet rock breaking of underground rock with a simpler structure and improving the reliability and efficiency of rock breaking.
The application is realized by the following technical scheme:
the utility model provides a pulse booster jet drilling device, includes the drilling rod, the one end of drilling rod is provided with the drill bit, the other end is provided with rotary joint, be provided with first nozzle on the drill bit, the feed liquor end of first nozzle communicates with the inside of drilling rod, rotary joint is including rotating sleeve and the hollow shaft that links to each other, the sleeve is located the drilling rod inside, sleeve outer wall cover is equipped with first piston, first piston is sliding seal with the inner wall of drilling rod, the hollow shaft is towards the drilling rod outside and the intercommunication is provided with water pipe and high-pressure pump in proper order, be provided with first check valve on the water pipe; the rotary joint is provided with an adjusting piece which is used for adjusting the distance between the rotary joint and the drill bit; the sleeve is provided with a flow blocking piece which extends towards the direction of the drill bit and is used for blocking drilling fluid in the drill rod from flowing to the first nozzle when being abutted against the drill bit.
Further, the flow blocking piece comprises a hollow pipe, the hollow pipe is located inside the drill rod, the inside division board that is provided with of one end that the drill rod is close to the drill bit, the through-hole that link up has been seted up on the division board, the one end that the division board is close to the drill bit is provided with the isolation section of thick bamboo, the one end and the through-hole intercommunication of division board, the other end seal tight with the drill bit of isolation section of thick bamboo, extend to in the isolation section of thick bamboo after the one end and the sleeve intercommunication, the other end of hollow pipe pass through the through-hole, the cover is equipped with the second piston on the hollow pipe, just the second piston is sliding seal with the hole wall of isolation section of thick bamboo, the regulating part is transferred to be little when the distance between rotary joint and the drill bit, hollow pipe and the drill bit looks butt, the drill bit is shutoff to the liquid end of hollow pipe or the tip carries out the feed liquor end of first nozzle, just the feed liquor end of first nozzle communicates with the isolation section of thick bamboo.
Further, the rotary joint is a multi-channel rotary joint, a lateral liquid outlet is formed in the outer side wall of the sleeve, a liquid through hole is formed in the isolation plate, a cavity is formed among the isolation plate, the isolation cylinder and the drill rod, a second nozzle is further arranged on the drill, the liquid inlet end of the second nozzle is communicated with the cavity, and a second one-way valve is arranged at one end of the hollow pipe close to the rotary joint.
Further, be provided with the water conservancy diversion piece in the drilling rod, set up the breach on the water conservancy diversion piece, sleeve pass behind the breach with water conservancy diversion piece sliding fit, when hollow tube and drill bit looks butt, the breach inside wall of water conservancy diversion piece shelters from the lateral liquid outlet, still set up the water conservancy diversion mouth on the water conservancy diversion piece, when hollow tube is furthest from the drill bit, telescopic lateral liquid outlet is located the one side that the water conservancy diversion piece deviates from the drill bit.
Further, the regulating part comprises a plurality of telescopic cylinders, the hollow shaft is provided with the mounting panel, a plurality of telescopic cylinders's one end is connected with the mounting panel, and a plurality of telescopic cylinders evenly distributed is in hollow shaft week side, be provided with the connecting plate on the drilling rod, a plurality of telescopic cylinders keep away from the one end of mounting panel and all extend to the connecting plate, the connecting plate has seted up circular spout on the face of one side that is close to the mounting panel, the axis of circular spout coincides with the axis of drilling rod, the slip is provided with a plurality of sliders in the circular spout, and a plurality of telescopic cylinders is close to the one end of connecting plate and all is connected with a plurality of slider one-to-one, the cross section shape of slider and circular spout is T shape or trapezoid.
Further, a sealing ring is arranged on the end face of the liquid outlet end of the hollow tube.
Further, the sealing ring is connected with the hollow tube through a screw.
Compared with the prior art, the application has the following advantages and beneficial effects:
1. the drilling rod is installed on the drilling machine, the drilling rod is driven to rotate through the main machine of the drilling machine, when underground rock is encountered, the distance between the rotary joint and the drill bit can be adjusted through the adjusting piece, the hollow pipe is propped against the drill bit, at the moment, the liquid outlet end of the hollow pipe is blocked by the drill bit, the high-pressure pump is started, high-pressure drilling fluid is conveyed into the hollow pipe through the water pipe, under the action of the first one-way valve, the high-pressure pump continuously conveys drilling fluid into the hollow pipe, the drilling fluid gathered in the hollow pipe is enabled to have higher pressure, then the distance between the rotary joint and the drill bit is increased through the adjusting piece, the hollow pipe is enabled to be separated from the drill bit, then the high-pressure drilling fluid in the hollow pipe is enabled to jet and break rock to the underground rock through the first nozzle, after the jet lasts for a few seconds to ten seconds, the adjusting piece is controlled to be propped against the drill bit again, then the high-pressure pump is continuously poured into the drilling fluid in the hollow pipe, the steps are repeated, the effect of pulse type rock breaking is achieved on the underground rock is achieved, the structure of the jet device is simpler, structural damage is difficult to occur, and the efficiency of breaking underground rock is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application.
In the drawings:
FIG. 1 is a partial sectional view of embodiment 1 of the present application, which is intended to show the structure of the inside of a drill rod;
FIG. 2 is an enlarged view of the portion A of FIG. 1 according to embodiment 1 of the present application;
fig. 3 is an enlarged view of the portion B in fig. 1 according to embodiment 1 of the present application.
In the drawings, the reference numerals and corresponding part names:
1. a drill rod; 2. a drill bit; 3. a first nozzle; 4. a rotary joint; 41. a sleeve; 42. a hollow shaft; 5. a first piston; 6. a water pipe; 7. a high pressure pump; 8. a first one-way valve; 9. a hollow tube; 10. a partition plate; 11. a through hole; 12. an isolation cylinder; 13. a sealing strip; 14. a second piston; 15. a lateral liquid outlet; 16. a liquid port; 17. a cavity; 18. a second nozzle; 19. a second one-way valve; 20. a flow guiding block; 21. a notch; 22. a diversion port; 23. a mud tank; 24. a telescopic cylinder; 25. a mounting plate; 26. a connecting plate; 27. a circular chute; 28. a slide block; 29. and (3) sealing rings.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application. It should be noted that the present application is already in a practical development and use stage.
Example 1
Referring to fig. 1 and 2, a pulse pressurized jet drilling device comprises a drill rod 1, wherein a drill bit 2 is detachably arranged at one end of the drill rod 1, a rotary joint 4 is arranged at the other end of the drill rod 1, a first nozzle 3 is arranged on the drill bit 2, the drill rod 1 is a hollow rod, the liquid inlet end of the first nozzle 3 is communicated with the inside of the drill rod 1, the rotary joint 4 comprises a sleeve 41 and a hollow shaft 42 which are rotationally connected, the connection mode between the sleeve 41 and the hollow shaft 42 is common knowledge in the field, so that the sleeve 41 is not repeated, the sleeve 41 is positioned in the drill rod 1, a first piston 5 is sleeved on the outer wall of the sleeve 41, the first piston 5 is in sliding seal with the inner wall of the drill rod 1, the hollow shaft 42 faces the outside of the drill rod 1 and is sequentially communicated with a water pipe 6 and a high-pressure pump 7, threads are arranged on the outer wall of the hollow shaft 42, the hollow shaft 42 is connected with the joint of the water pipe 6 through threads, one end of the hollow shaft, which is provided with a first one-way valve 8 and 42, and one end of the hollow shaft, which is far from the sleeve 41, is the liquid inlet end of the rotary joint 4, and one end of the sleeve 41, which is far from the sleeve 41 is the liquid outlet end of the rotary joint 4; the rotary joint 4 is provided with an adjusting piece which is used for adjusting the distance between the rotary joint 4 and the drill bit 2; the sleeve 41 is provided with a flow blocking piece which extends towards the direction of the drill bit 2 and is used for blocking drilling fluid in the drill rod 1 from flowing to the first nozzle 3 when the flow blocking piece is abutted against the drill bit 2; the drill rod 1 is arranged on a main machine of the drilling machine, the main machine can transmit the rotating force to the drill rod 1 through a reduction gearbox and a gear, the drill rod 1 is driven to rotate through the main machine, so that the drill rod 1 is used for drilling, when the drill bit 2 encounters rock underground, the distance between the rotary joint 4 and the drill bit 2 is reduced through an adjusting piece, a flow blocking piece is abutted against the drill bit 2, the surface of the drill bit 2 abutted against the hollow pipe 9 is a plane, the abutting against the end surface of the hollow pipe 9 is convenient, the drilling fluid in the drill rod 1 is blocked from flowing to the first nozzle 3 through the flow blocking piece, the high-pressure pump 7 conveys the drilling fluid into the drill rod 1 through the water pipe 6, and the drilling fluid cannot be output outwards due to the first nozzle 3, then drilling fluid pressure in the drill rod 1 gradually increases, after the high-pressure pump 7 pressurizes the drill rod 1 for a period of time, the distance between the rotary joint 4 and the drill bit 2 is increased through the adjusting piece, so that the flow blocking piece is separated from the drill bit 2, at the moment, the first nozzle 3 is communicated with the inside of the drill rod 1, and the high-pressure drilling fluid in the drill rod 1 instantly sprays huge transient energy to underground rock through the first nozzle 3, so that underground rock is convenient to be broken, the pulse jet rock breaking effect can be achieved by repeating the steps, the rock breaking effect is improved, and the scheme is simple in structure, difficult to damage, and the reliability of the jet drilling device is improved.
As a preferred embodiment, referring to fig. 1 and 3, the flow blocking piece comprises a hollow pipe 9, the hollow pipe 9 is located in a drill rod 1, a partition plate 10 is arranged in one end of the drill rod 1 close to a drill bit 2, a through hole 11 is formed in the partition plate 10, a partition cylinder 12 is arranged at one end of the partition plate 10 close to the drill bit 2, one end of the partition cylinder 12 is communicated with the through hole 11 of the partition plate 10, the other end of the partition cylinder 12 is tightly sealed with the drill bit 2, a sealing strip 13 is arranged on one end face of the partition cylinder 12 close to the drill bit 2, one end of the hollow pipe 9 is communicated with a sleeve 41, the other end of the hollow pipe extends into the partition cylinder 12 after passing through the through hole 11, a plurality of second pistons 14 are sleeved on the hollow pipe 9, the second pistons 14 are in sliding sealing with the inner hole wall of the partition cylinder 12, when the distance between the rotary joint 4 and the drill bit 2 is reduced by the adjusting piece, the hollow pipe 9 is abutted with the drill bit 2, at the moment, one side of the drill bit 2 close to the drill bit 1 faces the liquid outlet end of the hollow pipe 9, the liquid inlet end of the first nozzle 3 is communicated with the partition cylinder 12, when the distance between the rotary joint 9 and the hollow pipe 2 is enlarged by the rotary joint 2 and the hollow pipe 2 through the first nozzle 3; through setting up hollow tube 9, high-pressure pump 7 fills the drilling fluid in to hollow tube 9 through water pipe 6, has shortened the pressurization time of high-pressure pump 7, can tightly support the sealed that realizes the inside drilling fluid of hollow tube 9 through hollow tube 9 and drill bit 2 simultaneously, adjusts the distance between hollow tube 9 and the drill bit 2 through the regulating part, and then can control to carry out the pressure boost to hollow tube 9 inside or release the pulse jet to outside through first nozzle 3. The water pipe 6 is further provided with a flowmeter and a water pressure sensor, the flowmeter and the water pressure sensor are both located at one end of the water pipe 6 close to the rotary joint 4, the flowmeter and the water pressure sensor are electrically connected with a controller, and the flow and the water pressure of drilling fluid conveyed to the inside of the hollow pipe 9 can be monitored through the flowmeter and the water pressure sensor, so that the drilling fluid in the hollow pipe 9 can be released in time.
As a preferred embodiment, referring to fig. 1 and 2, the rotary joint 4 is a multi-channel rotary joint 4, a plurality of lateral liquid outlets 15 are formed on the outer side wall of the sleeve 41, a liquid through hole 16 is formed on the isolation plate 10, a cavity 17 is formed among the isolation plate 10, the isolation cylinder 12 and the drill rod 1, the cavity 17 is communicated with the inner space of the drill rod 1 above the isolation plate 10 through the liquid through hole 16, a plurality of second nozzles 18 are further arranged on the drill bit 2, the inner diameter of each second nozzle 18 is larger than the inner diameter of the corresponding first nozzle 3, the liquid inlet end of each second nozzle 18 is communicated with the corresponding cavity 17, a second one-way valve 19 is arranged on the hollow pipe 9, and the second one-way valve 19 is positioned below the sleeve 41 and close to the sleeve 41; the high-pressure pump 7 can continuously boost the pressure of the drilling fluid in the hollow pipe 9 through the first one-way valve 8 and the second one-way valve 19, the high-pressure pump 7 can convey the drilling fluid to the inside of the drill rod 1 through the lateral liquid outlet 15 of the sleeve 41, and the drilling fluid between the drill rod 1 and the hollow pipe 9 can convey the drilling fluid with relatively lower pressure but larger flow rate to the underground through the liquid through hole 16, the cavity 17 and the second nozzle 18 in sequence.
As a preferred embodiment, referring to fig. 1 and 2, a guide block 20 is arranged in a drill rod 1, a notch 21 is formed in the guide block 20, a sleeve 41 is in sliding fit with the guide block 20 after passing through the notch 21, when a hollow pipe 9 is abutted against a drill bit 2, the inner side wall of the notch 21 of the guide block 20 shields a lateral liquid outlet 15, at the moment, a high-pressure pump 7 conveys drilling fluid into the hollow pipe 9, and because the lateral liquid outlet 15 on the sleeve 41 is shielded and blocked by the guide block 20, the loss of the drilling fluid in the hollow pipe 9 is reduced, the quick pressurization of the hollow pipe 9 is facilitated, a guide port 22 is also formed in the guide block 20, and when the hollow pipe 9 is farthest from the drill bit 2, the lateral liquid outlet 15 of the sleeve 41 is positioned at one side of the guide block 20, which is far away from the drill bit 2; when the hollow pipe 9 is used for pressure relief to the outside and pulse jet is not performed on underground rock, the drilling fluid in the sleeve 41 can be circularly conveyed to the underground through the lateral liquid outlet 15, the flow guide opening 22, the liquid through opening 16, the cavity 17 and the second nozzle 18, the drilling fluid in the sleeve 41 can be circularly conveyed to the underground through the hollow pipe 9, the sleeve 41 and the first nozzle 3, the drilling fluid with relatively low pressure can be sprayed out of the ground and then returns to the mud tank 23, and the drilling fluid in the mud tank 23 is circularly conveyed and utilized by the high-pressure pump 7 due to the fact that the high-pressure pump 7 is communicated with the mud tank 23 through the water pipe 6.
As a preferred embodiment, referring to fig. 1 and 2, the adjusting member includes a plurality of telescopic cylinders 24, the telescopic cylinders 24 adopt hydraulic cylinders, a mounting plate 25 is disposed on a hollow shaft 42, one ends of the telescopic cylinders 24 are all connected with the mounting plate 25, the telescopic cylinders 24 are uniformly distributed on the periphery of the hollow shaft 42, a connecting plate 26 is disposed on a drill rod 1, the mounting plate 25 is opposite to the connecting plate 26, one ends of the telescopic cylinders 24 far away from the mounting plate 25 extend towards the connecting plate 26, a side plate surface of the connecting plate 26 close to the mounting plate 25 is provided with a circular chute 27, a central axis of the circular chute 27 coincides with a central axis of the drill rod 1, a plurality of sliding blocks 28 are slidably disposed in the circular chute 27, the sliding blocks 28 circumferentially slide in the circular chute 27, one end of the telescopic cylinders 24 close to the connecting plate 26 is correspondingly connected with the sliding blocks 28, and the cross section of the sliding blocks 28 and the circular chute 27 is in a T shape or an inverted trapezoid shape; when the plurality of telescopic cylinders 24 are shortened, as the positions of the drilling machine, the drill rod 1 and the connecting plate 26 are fixed, the telescopic cylinders 24 drive the mounting plate 25, the rotary joint 4 and the hollow pipe 9 to move towards the direction close to the drill bit 2, meanwhile, the first piston 5 and the second piston 14 slide towards the direction close to the drill bit 2, the first piston 5 keeps sealing with the inner side wall of the drill rod 1, and the second piston 14 keeps sealing with the inner side wall of the isolation cylinder 12, so that the hollow pipe 9 abuts against the drill bit 2, and the effect of blocking drilling fluid in the hollow pipe 9 from flowing to the first nozzle 3 is achieved; when a plurality of telescopic cylinders 24 extend, then telescopic cylinders 24 drive mounting plate 25, rotary joint 4 and hollow tube 9 to move towards the direction of keeping away from drill bit 2 for hollow tube 9 and drill bit 2 are separated, make hollow tube 9 be linked together with first nozzle 3, be convenient for to rock release efflux in the pit in order to break the rock, telescopic cylinders 24 pass through slider 28 and connecting plate 26 and slider 28 and circular spout 27's cross section shape is T shape or reverse trapezoidal, be convenient for make telescopic cylinders 24 connect connecting plate 26 and mounting plate 25 all the time, telescopic cylinders 24 have the ability of adjusting hollow tube 9 position all the time, be convenient for periodically adjust hollow tube 9 position, and then periodically open the passageway between hollow tube 9 and the first nozzle 3, and then spout pulsed efflux in order to break the rock to the pit.
As a preferred embodiment, referring to fig. 1 and 3, a seal ring 29 is provided on the end face of the liquid outlet end of the hollow tube 9 by screws, when the hollow tube 9 is abutted against the surface of the drill bit 2, the abutted portion of the hollow tube 9 and the drill bit 2 is radially sealed by the seal ring 29, so that the sealing performance inside the hollow tube 9 is improved, the high-pressure pump 7 is pressurized inside the hollow tube 9, and the seal ring 29 and the hollow tube 9 are connected by a plurality of screws, so that the situation that the seal ring 29 is washed by the drilling fluid flowing at high speed and separated from the hollow tube 9 is reduced.
It should be noted that, referring to fig. 1 and 3, before the drill rod 1 rotates, the position of the sliding block 28 can be finely adjusted by the telescopic cylinder 24 so as to reduce the extrusion force between the sliding block 28 and the connecting plate 26, and a certain gap is reserved between the sliding block 28 and the inner side wall of the circular chute 27, so that the sliding friction resistance between the connecting plate 26 and the sliding block 28 when the drill rod 1 drives the connecting plate 26 to rotate is reduced. When the drill rods 1 need to be lengthened, two adjacent drill rods 1 are connected through threads, and when the hollow pipes 9 need to be lengthened, two adjacent hollow pipes 9 are connected through threads; to reduce interference with the telescopic cylinder 24 as the drill rod 1 rotates, the mounting plate 25 may be secured to the ground or to the rig by a support bracket.
Example 2
The difference between this embodiment and embodiment 1 is that, in this embodiment, when the hollow tube 9 abuts against the drill bit 2, the end of the hollow tube 9, which is close to the drill bit 2, faces the liquid inlet end of the first nozzle 3 to block the liquid inlet end, so as to disconnect the channel between the hollow tube 9 and the first nozzle 3.
Example 3
In this embodiment, the circular sliding grooves 27 are provided with a plurality of, the central axes of the circular sliding grooves 27 are all coincident with the central axes of the drill rods 1, the radii of the circular sliding grooves 27 are different, at least one sliding block 28 is arranged in each circular sliding groove 27, one ends of the telescopic cylinders 24, which are far away from the mounting plates 25, are connected with the sliding blocks 28 in a one-to-one correspondence manner, so that the telescopic cylinders 24 do not greatly affect the rotation of the drill rods 1, and when the drill rods 1 rotate, the drill rods 1 drive the connecting plates 26 to rotate, and at the moment, the sliding blocks 28 slide in the corresponding circular sliding grooves 27 relative to the connecting plates 26.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (7)
1. A pulse booster jet drilling device, characterized in that: the novel drilling machine comprises a drilling rod (1), wherein one end of the drilling rod (1) is provided with a drilling bit (2) and the other end is provided with a rotary joint (4), a first nozzle (3) is arranged on the drilling bit (2), a liquid inlet end of the first nozzle (3) is communicated with the inside of the drilling rod (1), the rotary joint (4) comprises a sleeve (41) and a hollow shaft (42) which are connected in a rotating mode, the sleeve (41) is positioned in the drilling rod (1), a first piston (5) is sleeved on the outer wall of the sleeve (41), the first piston (5) is in sliding sealing with the inner wall of the drilling rod (1), a water pipe (6) and a high-pressure pump (7) are sequentially communicated towards the outside of the drilling rod (1), and a first one-way valve (8) is arranged on the water pipe (6); an adjusting piece is arranged on the rotary joint (4) and used for adjusting the distance between the rotary joint (4) and the drill bit (2); the sleeve (41) is provided with a flow blocking piece which extends towards the direction of the drill bit (2) and is used for blocking drilling fluid in the drill rod (1) from flowing to the first nozzle (3) when being abutted against the drill bit (2).
2. The pulsed pressurized jet drilling apparatus of claim 1, wherein: the air blocking piece comprises a hollow tube (9), the hollow tube (9) is located inside the drill rod (1), an isolation plate (10) is arranged inside one end of the drill rod (1) close to the drill bit (2), a through hole (11) which is communicated with the drill bit (2) is formed in the isolation plate (10), an isolation cylinder (12) is arranged at one end of the isolation plate (10) close to the drill bit (2), one end of the isolation cylinder (12) is communicated with the through hole (11) of the isolation plate (10), the other end of the isolation cylinder (12) is tightly abutted to the drill bit (2) in a sealing mode, one end of the hollow tube (9) is communicated with a sleeve (41), the other end of the hollow tube (9) extends into the isolation cylinder (12) through the through hole (11), a second piston (14) is sleeved on the hollow tube (9), the inner hole wall of the second piston (14) is in sliding sealing mode with the isolation cylinder (12), the hollow tube (9) is abutted to the drill bit (2) in a butt joint mode when the distance between the rotary joint (4) and the drill bit (2) is reduced, and the hollow tube (9) is abutted to the drill bit (2), one end of the hollow tube (2) is communicated with the first end of the hollow tube (9) through the first end (3), and the first end of the first end (3) is plugged with the first end (3).
3. The pulsed pressurized jet drilling apparatus of claim 2, wherein: the rotary joint (4) is a multi-channel rotary joint (4), a lateral liquid outlet (15) is formed in the outer side wall of the sleeve (41), a liquid through hole (16) is formed in the isolation plate (10), a cavity (17) is formed among the isolation plate (10), the isolation barrel (12) and the drill rod (1), a second nozzle (18) is further arranged on the drill bit (2), the liquid inlet end of the second nozzle (18) is communicated with the cavity (17), and a second one-way valve (19) is arranged at one end of the hollow tube (9) close to the rotary joint (4).
4. A pulsed pressurized jet drilling apparatus according to claim 3, characterized in that: be provided with water conservancy diversion piece (20) in drilling rod (1), set up breach (21) on water conservancy diversion piece (20), sleeve (41) pass behind breach (21) with water conservancy diversion piece (20) sliding fit, when hollow tube (9) and drill bit (2) looks butt, breach (21) inside wall lateral liquid outlet (15) of water conservancy diversion piece (20) shelter from, water conservancy diversion piece (20) are last to have still offered water conservancy diversion mouth (22), when hollow tube (9) are furthest from drill bit (2), lateral liquid outlet (15) of sleeve (41) are located one side that water conservancy diversion piece (20) deviate from drill bit (2).
5. The pulsed pressurized jet drilling apparatus of claim 1, wherein: the adjusting piece comprises a plurality of telescopic cylinders (24), a plurality of mounting plates (25) are arranged on a hollow shaft (42), one ends of the telescopic cylinders (24) are connected with the mounting plates (25), the telescopic cylinders (24) are uniformly distributed on the periphery of the hollow shaft (42), a connecting plate (26) is arranged on a drill rod (1), one ends of the telescopic cylinders (24) away from the mounting plates (25) extend towards the connecting plate (26), a circular sliding groove (27) is formed in one side surface of the connecting plate (26) close to the mounting plates (25), the central axis of the circular sliding groove (27) coincides with the central axis of the drill rod (1), a plurality of sliding blocks (28) are arranged in the circular sliding groove (27), one ends of the telescopic cylinders (24) close to the connecting plate (26) are connected with the sliding blocks (28) in a one-to-one mode, and the cross section shapes of the sliding blocks (28) and the circular sliding groove (27) are T-shaped or inverted trapezoid.
6. The pulsed pressurized jet drilling apparatus of claim 2, wherein: a sealing ring (29) is arranged on the end face of the liquid outlet end of the hollow pipe (9).
7. The pulsed pressurized jet drilling apparatus of claim 6, wherein: the sealing ring (29) is connected with the hollow tube (9) through a screw.
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