Intelligent self-adapting speed-regulating and pressure-distributing liquid-driven high-efficiency impact drilling tool

Abstract

The present application relates to a kind of intelligent adaptive speed regulation pressure distribution liquid drive high-efficiency impact drilling tools, it is related to petroleum and natural industry and mechanical engineering field.By upper joint, power shell, power supply and control assembly, pressure-displacement coupling sensor, hollow frequency modulation motor, pressure relief rotating sleeve, spin slide sleeve, pressure open-close sleeve, sealing rubber sleeve, center flow hole sleeve, sliding sleeve shell, reciprocating hammer body, lower joint, spline drill bit, anti-drop sleeve, spline shell, O type sealing ring, pressure ring, angular contact bearing A), angular contact bearing B is formed.The intelligent adaptive speed regulation pressure distribution liquid drive high-efficiency impact drilling tool disclosed in the present application controls and controls valve and tool pressure by intelligent control, guarantees the efficient work of impact hammer, output large impact work reaches the purpose of high-efficiency rock breaking, realizes intelligent high-efficiency rock breaking technology.

Description

Technical Field

[0001] This invention relates to the fields of petroleum and natural gas industry and mechanical engineering, and in particular to a high-efficiency impact rock-breaking tool with intelligent adaptive speed regulation and pressure distribution hydraulic drive. Background Technology

[0002] With the advancement of drilling technology, drilling depth has increased exponentially. This increased drilling depth leads to increased rock hardness, resulting in low drill bit footage efficiency and persistently high drilling costs. Researchers and engineers have improved drilling efficiency by optimizing drill bit structure, drill string assembly, and tool coordination, with some success, but this still falls far short of the urgent need for improved deep well drilling efficiency. Multiple studies have shown that percussion rock breaking is an effective way to address the low efficiency of hard rock drilling; however, current percussion tools generally suffer from limitations such as short lifespan and low impact capability, failing to effectively increase drilling speed.

[0003] To address the problem of low rock-breaking efficiency in hard strata, there is an urgent need to develop a high-efficiency impact tool with intelligent control. Its core lies in intelligently controlling and regulating the rotary valve and tool pressure to ensure the efficient operation of the impact hammer, outputting large impact energy to achieve efficient rock breaking, thus realizing intelligent and efficient rock-breaking technology. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool. By intelligently controlling and regulating the rotary valve and tool pressure, the high-efficiency operation of the hammer is ensured, and the large impact power is output to achieve the purpose of high-efficiency rock breaking, thus realizing intelligent high-efficiency rock breaking technology.

[0005] This invention designs an intelligent adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool, which consists of an upper connector (1), a power housing (2), a power supply and control assembly (3), a pressure-displacement coupling sensor (4), a central air-frequency motor (5), a pressure relief rotating sleeve (6), a sliding sleeve (7), a pressure opening and closing sleeve (8), a sealing sleeve (9), a central flow hole sleeve (10), a sliding sleeve housing (11), a reciprocating hammer (12), a lower connector (13), a spline drill bit (14), an anti-drop sleeve (15), a spline housing (16), O-ring A (17), O-ring B (18), O-ring C (19), O-ring D (20), O-ring E (21), O-ring F (22), O-ring G (23), a pressure ring (24), an angular contact bearing A (25), and an angular contact bearing B (26). A smart adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool, characterized in that: the upper connector (1) is connected to the power housing (2) by threads and fixes the power supply and control assembly (3), pressure-displacement coupling sensor (4), and central air-frequency motor (5); The central flow hole sleeve (10) is connected to the power housing (2) and the sliding sleeve housing (11) in sequence through connecting external thread I (1002) and connecting external thread II (1003); the lower connector (13) is connected to the sliding sleeve housing (11) and the spline housing (16) respectively through threads; The pressure relief rotating sleeve (6) is connected to the central air conditioning frequency motor (5) through the torque transmission groove (601) and positioned by the pressure ring (24). The pressure relief rotating sleeve (6) is provided with a bearing mounting inner groove (603) and a bearing mounting outer groove (604). An angular contact bearing A (25) and an angular contact bearing B (26) are respectively installed between the pressure relief rotating sleeve (6), the power housing (2), and the central flow hole sleeve (10); The sliding sleeve (7) is connected to the central air conditioning frequency motor (5) through the connecting internal thread (702), and is connected to the reciprocating slide groove (801) of the pressure opening and closing sleeve (8) through the guide convex ring (701); The sliding inner surface (1206) of the reciprocating hammer (12) is clearance-fitted with the sliding guide surface (1006) of the central flow hole sleeve (10); The sliding sleeve outer shell (11) has a through hole (1101) around its circumference; When using the tool, the ground turns on the tool through the computer and then connects the drill rod and lowers it. At this time, the pressure-displacement coupling sensor (4) monitors the displacement and pressure. When the displacement is zero, the controller sends a command not to supply power to the central air conditioning frequency motor (5), and the central air conditioning frequency motor (5) remains in a stopped and non-working state. When the displacement is not zero, monitor the internal pressure of the tool. When the pressure is the design value, the central air-frequency motor (5) maintains the design speed and simultaneously cyclically judges the pressure and displacement. At this time, the opening and closing sleeve (8) and the sealing sleeve (9) are completely sealed. The pressure relief groove (602) of the pressure relief rotating sleeve (6) is connected to the pressure relief port (201) of the power housing (2). The fluid passes through the upper connector (1), the central air-frequency motor (5), the pressure opening and closing sleeve (8), the central flow hole sleeve (10), and the central hole of the reciprocating hammer (12). Part of the fluid flows out from the spline drill bit (14), and part of the fluid flows into the annular cavity composed of the reciprocating hammer (12), the lower connector (13), the spline drill bit (14), and the spline shell (16) through the diversion hole (1207) of the reciprocating hammer (12). The peeling action surface SC (1204) of the reciprocating hammer (12) generates power under pressure to drive axial movement and disengage from the spline drill bit (14). After a certain stroke, the opening and closing sleeve (8) and the sealing sleeve (9) disengage, and the pressure relief rotating sleeve (6) The pressure relief groove (602) of the power housing (2) is not connected to the pressure relief port (201). Part of the fluid will enter the annular cavity composed of the power housing (2), pressure relief rotating sleeve (6), sliding sleeve (7), pressure opening and closing sleeve (8), sealing sleeve (9), central flow hole sleeve (10), and reciprocating hammer (12). At this time, the impact surface SA (1201) and peeling surface SC (1204) of the reciprocating hammer (12) are subjected to high pressure fluid, and the low pressure surface SB (1202) is subjected to low pressure fluid from the annulus. The reciprocating hammer (12) is driven to impact the spline drill bit (14) under the force, and thus the impact is repeated. When the pressure is greater than or less than the design value, the control system issues speed-up and speed-down commands to the central air-frequency motor (5) respectively. At the same time, the speed is detected and when the speed meets the preset pressure-speed curve, the central air-frequency motor (5) maintains the current speed. When it does not meet the preset pressure-speed curve, the speed difference is calculated and it is determined whether it is higher or lower than the preset pressure-speed curve. Then, the central air-frequency motor (5) issues speed-up and speed-down commands respectively. Finally, the speed meets the pressure-speed curve, the central air-frequency motor (5) maintains the speed and feeds back to the control system in real time.

[0006] The pressure relief rotating sleeve (6) has 2-8 pressure relief grooves (602), which are circular, elliptical, square and rectangular in shape.

[0007] The central air conditioning frequency motor (5) has a speed of 0-4000 rpm and comes with its own frequency regulation system.

[0008] The intelligent adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact rock-breaking tool has an impact frequency of 0-50Hz and a voltage of 110-220V.

[0009] The pressure-displacement coupling sensor (4) has a flow monitoring range of 0-100 liters per second and a pressure monitoring range of 0-30 MPa.

[0010] The reciprocating groove (801) of the pressure opening and closing sleeve (8) has a pitch of 10-30mm.

[0011] The trapezoidal mounting position (1001) of the central flow hole sleeve (10) is fixedly connected with the sealing sleeve (9), and the number of flow channel through holes (1004) is 3-8.

[0012] The number of through holes (1101) is 2-10, which are opened axially and have a diameter of 5-0 mm.

[0013] When the reciprocating hammer (12) impacts, the impact surface SA (1201) and the peeling surface SC (1204) are under high pressure, and the low-pressure surface SB (1202) is under low pressure. The reciprocating hammer (12) as a whole is subjected to force in the direction of the spline drill bit (14). When not impacting, the impact surface SA (1201) and the low-pressure surface SB (1202) are under low pressure, and the peeling surface SC (1204) is under high pressure. The reciprocating hammer (12) as a whole is subjected to force in the opposite direction to the spline drill bit (14).

[0014] Compared with the prior art, the beneficial effects of this invention are: (1) The main structure of the present invention is simple and can be applied to mud drilling; (2) The present invention has low pressure, and its low pressure consumption compared with other structures is beneficial for oil and gas drilling; (3) The present invention has a high degree of compatibility with existing construction techniques and low usage costs; (4) The intelligent control of this invention can ensure that its efficient operation is not reduced by pressure fluctuations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an intelligent adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool according to the present invention; Figure 2 This is a schematic diagram of the reciprocating hammer body at the top of a smart adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool according to the present invention. Figure 3 This is a three-dimensional cross-sectional schematic diagram of the pressure relief rotating sleeve of the present invention; Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the rotary sleeve of the present invention; Figure 5 This is a three-dimensional cross-sectional view of the pressure opening and closing sleeve of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the central flow hole sleeve of the present invention; Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the reciprocating hammer body of the present invention; Figure 8 This is a schematic diagram of the working principle of the control system of the present invention; Figure 9 This invention provides a pressure-speed curve diagram within the control system of the present invention. In the diagram: 1. Upper connector, 2. Power housing, 3. Power supply and control assembly, 4. Pressure-displacement coupling sensor, 5. Central air-frequency motor, 6. Pressure relief rotating sleeve, 7. Sliding sleeve, 8. Pressure opening and closing sleeve, 9. Sealing sleeve, 10. Central flow hole sleeve, 11. Sliding sleeve housing, 12. Reciprocating hammer, 13. Lower connector, 14. Splined drill bit, 15. Anti-drop sleeve, 16. Splined housing, 17. O-ring A, 18. O-ring B, 19. O-ring C, 20. O-ring D, 21. O-ring E, 22. O-ring F, 23. O-ring G, 24. Pressure ring, 25. Angular contact bearing A, 26. Angular contact bearing B, 201. Pressure relief port, 6 01. Torque transmission groove, 602. Pressure relief groove, 603. Bearing mounting inner groove, 604. Bearing mounting outer groove, 701. Guide ring, 702. Connecting internal thread, 801. Reciprocating groove, 802. Sealing groove, 803. Sealing inner hole, 1001. Trapezoidal mounting position, 1002. Connecting external thread I, 1003. Connecting external thread II, 1004. Flow channel through hole, 1005. Center hole, 1006. Sliding guide surface, 1101. Through hole, 1201. Impact surface SA, 1202. Low pressure surface SB, 1203. Isolation sealing groove, 1204. Peeling surface SC, 1205. Sliding sealing groove, 1206. Sliding inner surface, 1206. Diverting hole. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0017] The specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible variations based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "linked" should be interpreted broadly; for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] See Figures 1 to 9 A smart, adaptive, speed-regulating, pressure-controlled, high-efficiency hydraulic impact drilling tool comprises an upper connector 1, a power housing 2, a power supply and control assembly 3, a pressure-displacement coupling sensor 4, a centrally located induction motor 5, a pressure relief rotating sleeve 6, a sliding sleeve 7, a pressure opening and closing sleeve 8, a sealing sleeve 9, a central flow hole sleeve 10, a sliding sleeve housing 11, a reciprocating hammer 12, a lower connector 13, a splined drill bit 14, an anti-drop sleeve 15, a splined housing 16, O-rings A17, B18, C19, D20, E21, F22, and G23, a pressure ring 24, and angular contact bearings A25 and B26. A smart adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool, characterized in that: the upper connector 1 is connected to the power housing 2 by threads and fixes the power supply and control assembly 3, the pressure-displacement coupling sensor 4, and the medium-frequency motor 5; The central flow hole sleeve 10 is connected to the power housing 2 and the sliding sleeve housing 11 in sequence through the external thread I1002 and the external thread II1003; The lower connector 13 is connected to the sliding sleeve housing 11 and the spline housing 16 respectively by threads; The pressure relief rotating sleeve 6 is connected to the central air conditioning frequency motor 5 through the torque transmission groove 601 and is positioned by the pressure ring 24. The pressure relief rotating sleeve 6 is provided with a bearing mounting inner groove 603 and a bearing mounting outer groove 604. Angle contact bearings A25 and B26 are respectively installed between the pressure relief rotating sleeve 6, the power housing 2, and the central flow hole sleeve 10. The presence of angle contact bearings A25 and B26 ensures that the pressure relief rotating sleeve 6 rotates in the center. The sliding sleeve 7 is connected to the central air conditioning frequency motor 5 through the connecting internal thread 702, and is connected to the reciprocating slide groove 801 of the pressure opening and closing sleeve 8 through the guide convex ring 701; The sliding inner surface 1206 of the reciprocating hammer 12 is in clearance fit with the sliding guide surface 1006 of the central flow hole sleeve 10; The sliding sleeve outer shell 11 has a through hole 1101 around its circumference; When using the tool, the ground controls the tool to start via computer and then connects the drill rod for lowering. At this time, the pressure-displacement coupling sensor 4 monitors the displacement and pressure. When the displacement is zero, the controller sends a command to cut off the power supply to the central air conditioning frequency motor 5, and the central air conditioning frequency motor 5 remains in a stopped state. When the displacement is not zero, monitor the internal pressure of the tool. When the pressure is the design value, the central air-frequency motor 5 maintains the design speed and simultaneously cyclically judges the pressure and displacement. At this time, the opening and closing sleeve 8 and the sealing sleeve 9 are completely sealed, and the pressure relief groove 602 of the pressure relief rotating sleeve 6 is connected to the pressure relief port 201 of the power housing 2. The fluid passes through the upper connector 1, the central air-frequency motor 5, the pressure opening and closing sleeve 8, the central hole 1005 of the central flow hole sleeve 10, and the central hole of the reciprocating hammer 12. Then, part of it flows out from the spline drill bit 14, and the other part flows into the annular cavity composed of the reciprocating hammer 12, the lower connector 13, the spline drill bit 14, and the spline shell 16 through the diversion hole 1207 of the reciprocating hammer 12. The peeling action surface SC1204 of the reciprocating hammer 12 generates power under pressure to drive axial movement and disengage from the spline drill bit 14. The reciprocating hammer 12 accelerates upward.

[0021] After a certain stroke, the opening and closing sleeve 8 and the sealing sleeve 9 disengage, and the pressure relief groove 602 of the pressure relief rotating sleeve 6 is no longer connected to the pressure relief port 201 of the power housing 2. At this time, part of the fluid will enter the annular cavity composed of the power housing 2, the pressure relief rotating sleeve 6, the sliding sleeve 7, the pressure opening and closing sleeve 8, the sealing sleeve 9, the central flow hole sleeve 10, and the reciprocating hammer 12. At this time, the impact surface SA1201 and the peeling surface SC1204 of the reciprocating hammer 12 are subjected to high pressure fluid, and the low pressure surface SB1202 is subjected to low pressure fluid from the annulus. The reciprocating hammer 12 decelerates upward until the speed is zero. At this time, the opening and closing sleeve 8 and the sealing sleeve 9 are still disengaged, and the pressure relief groove 602 of the pressure relief rotating sleeve 6 is still not connected to the pressure relief port 201 of the power housing 2. The force on the reciprocating hammer 12 does not change. The reciprocating hammer 12 impacts the spline drill bit 14 downward under the force, and thus the impact is repeated. When the pressure is greater than or less than the design value, the control system issues speed-increasing and deceleration commands to the central air-frequency motor 5, respectively. At the same time, the speed is detected and when the speed meets the preset pressure-speed curve, the central air-frequency motor 5 maintains the current speed. When the speed does not meet the preset pressure-speed curve, the speed difference is calculated and it is determined whether the preset pressure-speed curve is met. Then, the central air-frequency motor 5 issues speed-increasing and deceleration commands, respectively. By adjusting the speed to meet the pressure-speed curve, the central air-frequency motor 5 maintains the speed and provides real-time feedback to the control system.

[0022] The pressure relief rotating sleeve 6 has 2-8 pressure relief grooves 602, which are circular, elliptical, square, and rectangular in shape.

[0023] The central air conditioning frequency motor 5 has a speed range of 0-4000 rpm and comes with its own frequency regulation system.

[0024] The intelligent adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact rock-breaking tool has an impact frequency of 0-50Hz and a voltage of 110-220V.

[0025] The pressure-displacement coupling sensor 4 has a flow monitoring range of 0-100 liters per second and a pressure monitoring range of 0-30 MPa.

[0026] The reciprocating groove 801 of the pressure opening and closing sleeve 8 has a pitch of 10-30mm.

[0027] The trapezoidal mounting position 1001 of the central flow hole sleeve 10 is fixedly connected to the sealing sleeve 9, and the number of flow channel through holes 1004 is 3-8.

[0028] The number of through holes 1101 is 2-10, which are opened axially and have a diameter of 5-0 mm.

[0029] When the reciprocating hammer 12 impacts, the impact surface SA1201 and the peeling surface SC1204 are under high pressure, while the low-pressure surface SB1202 is under low pressure. The reciprocating hammer 12 is subjected to force in the opposite direction to the spline drill bit 14. When not impacting, the impact surface SA1201 and the low-pressure surface SB1202 are under low pressure, while the peeling surface SC1204 is under high pressure. The reciprocating hammer 12 is subjected to force in the opposite direction to the spline drill bit 14.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the spirit and principles of the present invention. Any modifications, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims

1. A smart adaptive speed-regulating and pressure-distributing hydraulically driven high-efficiency impact drilling tool, comprising an upper connector (1), a power housing (2), a power supply and control assembly (3), a pressure-displacement coupling sensor (4), a centrally located induction motor (5), a pressure relief rotating sleeve (6), a sliding sleeve (7), a pressure opening and closing sleeve (8), a sealing sleeve (9), a central flow hole sleeve (10), a sliding sleeve housing (11), a reciprocating hammer (12), and a lower connector ( 13), a spline drill bit (14), an anti-slip sleeve (15), a spline housing (16), O-ring A (17), O-ring B (18), O-ring C (19), O-ring D (20), O-ring E (21), O-ring F (22), O-ring G (23), a pressure ring (24), angular contact bearing A (25), and angular contact bearing B (26) are composed of, characterized in that: The upper connector (1) is connected to the power housing (2) by threads and fixes the power supply and control assembly (3), pressure-displacement coupling sensor (4), and central air-frequency motor (5); the central flow hole sleeve (10) is connected to the power housing (2) and the sliding sleeve housing (11) in sequence by connecting external threads I (1002) and connecting external threads II (1003); the lower connector (13) is connected to the sliding sleeve housing (11) and the spline housing (16) by threads respectively; the pressure relief rotating sleeve (6) is connected to the central air-frequency motor (5) by torque transmission groove (601) and positioned by pressure ring (24), and the pressure relief rotating sleeve (6) is provided with bearing mounting groove. (603) and bearing mounting groove (604); the sliding sleeve (7) is connected to the central air conditioning frequency motor (5) through the connecting internal thread (702), and is connected to the reciprocating sliding groove (801) of the pressure opening and closing sleeve (8) through the guide convex ring (701); the sliding inner surface (1206) of the reciprocating hammer body (12) is clearance-fitted with the sliding guide surface (1006) of the central flow hole sleeve (10); the sliding sleeve outer shell (11) is provided with a through hole (1101) around its circumference; angular contact bearing A (25) and angular contact bearing B (26) are respectively installed between the pressure relief rotating sleeve (6), the power housing (2), and the central flow hole sleeve (10); When using the tool, the ground turns on the tool through the computer and then connects the drill rod and lowers it. At this time, the pressure-displacement coupling sensor (4) monitors the displacement and pressure. When the displacement is zero, the controller sends a command not to supply power to the central air conditioning frequency motor (5), and the central air conditioning frequency motor (5) remains in a stopped state. When the displacement is not zero, monitor the internal pressure of the tool. When the pressure is the design value, the central air-frequency motor (5) maintains the design speed and simultaneously cyclically judges the pressure and displacement. At this time, the opening and closing sleeve (8) and the sealing sleeve (9) are completely sealed. The pressure relief groove (602) of the pressure relief rotating sleeve (6) is connected to the pressure relief port (201) of the power housing (2). The fluid passes through the upper connector (1), the central air-frequency motor (5), the pressure opening and closing sleeve (8), the central flow hole sleeve (10), and the central hole of the reciprocating hammer (12). Part of it flows out from the spline drill bit. (14) Flows out, a portion of which flows through the diversion hole (1207) of the reciprocating hammer (12) into the annular cavity composed of the reciprocating hammer (12), lower connector (13), spline drill bit (14), and spline housing (16). The peeling action surface SC (1204) of the reciprocating hammer (12) generates power under pressure to drive axial movement and disengage from the spline drill bit (14). After a certain stroke, the opening and closing sleeve (8) and the sealing sleeve (9) disengage. The pressure relief groove (602) of the pressure relief rotating sleeve (6) and the pressure relief port (201) of the power housing (2) are connected. If the connection is broken, a portion of the fluid will enter the annular cavity composed of the power housing (2), pressure relief rotating sleeve (6), sliding sleeve (7), pressure opening and closing sleeve (8), sealing sleeve (9), central flow hole sleeve (10), and reciprocating hammer (12). At this time, the impact surface SA (1201) and peeling surface SC (1204) of the reciprocating hammer (12) are subjected to high-pressure fluid, while the low-pressure surface SB (1202) is subjected to low-pressure fluid from the annulus. Under the action of the force, the reciprocating hammer (12) is driven to impact the spline drill bit. 14), and so on, in a cyclical manner; when the pressure is greater than or less than the design value, the control system issues speed increase and speed decrease commands to the central air-frequency motor (5) respectively. At the same time, the speed is detected and when the speed meets the preset pressure speed curve, the central air-frequency motor (5) maintains the current speed. When it does not meet the preset pressure speed curve, the speed difference is calculated and it is determined whether it is higher or lower than the preset pressure speed curve. Then, the central air-frequency motor (5) issues speed decrease and speed increase commands respectively. Finally, the speed meets the pressure speed curve, the central air-frequency motor (5) maintains the speed and feeds back to the control system in real time.

2. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The pressure relief rotating sleeve (6) has 2-8 pressure relief grooves (602), which are circular, elliptical, square and rectangular in shape.

3. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The central air conditioning frequency motor (5) has a speed of 0-4000 rpm and comes with its own frequency regulation system.

4. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The impact frequency is 0-50Hz, the voltage is 110-220V, and the working pressure is 2-20MPa.

5. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The pressure-displacement coupling sensor (4) has a flow monitoring range of 0-100 liters per second and a pressure monitoring range of 0-30 MPa.

6. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The reciprocating groove (801) of the pressure opening and closing sleeve (8) has a pitch of 10-30mm.

7. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The trapezoidal mounting position (1001) of the central flow hole sleeve (10) is fixedly connected with the sealing sleeve (9), and the number of flow channel through holes (1004) is 3-8.

8. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: The number of through holes (1101) is 2-10, which are opened axially and have a diameter of 5-0 mm.

9. A smart adaptive speed-regulating and pressure-controlled hydraulically driven high-efficiency impact drilling tool, characterized in that: When the reciprocating hammer (12) impacts, the impact surface SA (1201) and the peeling surface SC (1204) are under high pressure, and the low-pressure surface SB (1202) is under low pressure. The reciprocating hammer (12) as a whole is subjected to force in the direction of the spline drill bit (14). When not impacting, the impact surface SA (1201) and the low-pressure surface SB (1202) are under low pressure, and the peeling surface SC (1204) is under high pressure. The reciprocating hammer (12) as a whole is subjected to force in the opposite direction to the spline drill bit (14).

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