A shock wave generating device with steering function and a method of using the same

Abstract

The present application discloses a shock wave generating device with a steering function and a method for using the same, including a shock wave generating device body, a steering mechanism, and a guide head; the rear end of the guide head is hinged to the front end of the shock wave generating device body, and the steering mechanism drives the guide head to move so that the axis of the guide head and the axis of the shock wave generating device body form a set angle. The method includes the steps of: pushing the shock wave generating device body to the inclination point of the borehole through a cable drill rod; opening the valve of the water tank, injecting water into the high-pressure water pipe, and controlling the flow solenoid valve to spray water of a set flow rate by a controller; the guide head turns under the reaction force of the water sprayed out of the water outlet, and then continues to push the shock wave generating device body, and the guide head enters the set branch hole. The present application solves the problem in the prior art that the shock wave generating device is easily pushed into the wrong hole position when it is pushed from the main hole to the branch hole.

Description

Technical Field

[0001] The present application belongs to the field of shock wave technology, and specifically relates to a shock wave generating device with a steering function and a method of using the same. Background Art

[0002] Coal is the conventional energy with the largest reserves and the widest distribution in the world. Coalbed methane is a new type of energy with high heat, cleanliness and convenience. It has many advantages that other energy sources cannot match, such as no pollution and no oil pollution. Coalbed methane exists in the coal seam in an adsorbed state. In order to realize the industrial mining of coalbed methane and speed up the extraction of coalbed methane in mines, shock wave generating devices are often used to transform coal seams.

[0003] When transforming a coal seam, it is necessary to drill multiple holes for the shock wave generating device to work. When the drilling distance is long, the drilling construction is slow and the cost is high. Therefore, branch drilling is currently used. The branch drilling includes a main hole and a branch hole drilled from the inclination point of the main hole. By setting a main hole and multiple branch holes located in the coal seam, not only the efficiency of drilling holes is improved, but also the cost is reduced. However, when pushing the shock wave generating device from the main hole to the branch hole, it is easy to push the hole to the wrong position, thereby affecting the normal operation of the shock wave generating device. Summary of the invention

[0004] The embodiment of the present application solves the problem in the prior art that the shock wave generating device is easily pushed into the wrong hole position when being pushed from the main hole to the branch hole by providing a shock wave generating device with a steering function and a method for using the same.

[0005] In order to achieve the above-mentioned object, an embodiment of the present invention provides a shock wave generating device with a steering function, comprising a shock wave generating device body, a steering mechanism, and a guide head arranged at the front end of the shock wave generating device body;

[0006] The rear end of the guide head is hinged to the front end of the shock wave generating device body, and the steering mechanism drives the guide head to move so that the axis of the guide head and the axis of the shock wave generating device body form a set angle.

[0007] In a possible implementation, the rear end of the guide head is hinged to the front end of the shock wave generating device body through a cross-axis universal joint;

[0008] The cross-axis universal joint comprises a first transmission shaft fork, a second transmission shaft fork, and a cross shaft; the first transmission shaft fork and the second transmission shaft fork are connected through the cross shaft; the end of the first transmission shaft fork is connected to the front end of the shock wave generating device body, and the end of the second transmission shaft fork is connected to the rear end of the guide head;

[0009] An angle limiting plate is arranged circumferentially on the outer wall of the first transmission shaft fork, and the end face of the angle limiting plate matches the end face of the second transmission shaft fork. The angle limiting plate makes the axis of the second transmission shaft fork and the axis of the first transmission shaft fork form a set angle, and the angle is within the range of 0.5° to 1°.

[0010] In a possible implementation, the steering mechanism includes a controller, a high-pressure water pipe, an azimuth angle sensor, a flow solenoid valve, and a water outlet provided on the outer wall of the guide head;

[0011] The azimuth angle sensor is installed at the end of the second transmission shaft fork, and the azimuth angle sensor is located between two sleeve forks of the second transmission shaft fork;

[0012] The input shaft of the azimuth angle sensor is connected to the first transmission shaft fork through a connecting rod, and the input shaft of the azimuth angle sensor and the first transmission shaft fork are coaxially arranged;

[0013] The guide head is a cylindrical body, the end of the guide head is an arc-shaped structure, the number of the water outlet holes is three, the three water outlet holes are evenly distributed in the circumference of the side wall of the guide head, and the plane where the three water outlet holes are located is perpendicular to the axis of the guide head;

[0014] The high-pressure water pipe is arranged in the body of the shock wave generating device, and the end of the high-pressure water pipe extends into the interior of the guide head and then branches into three water pipes, which are respectively connected to the three water outlets; each water pipe is provided with a flow solenoid valve;

[0015] The azimuth angle sensor and the flow solenoid valve are both electrically connected to the controller.

[0016] In a possible implementation, a detection disk is provided on a side of the angle limiting plate close to the second transmission shaft fork, and a pressure sensor is provided between the detection disk and the angle limiting plate.

[0017] In a possible implementation, a bellows is provided between the guide head and the shock wave generating device body, and the universal joint is located inside the bellows.

[0018] In a possible implementation, the shock wave generating device body includes a shell, a load for generating shock waves, an insulator, a bag, and a cable, a control line, and a water conduit arranged in the shell;

[0019] The shell is a cylindrical structure with a hollow interior. A transducer window is provided at the front of the shell, and the transducer window is an opening for shock waves to pass through. A cable interface and a water injection pipe interface are provided at the rear end of the shell. A high-voltage electrode and a ground electrode are provided inside the shell.

[0020] The load is arranged at the transducer window, and two ends of the load are respectively connected to the high voltage electrode and the ground electrode;

[0021] The insulator is arranged in the shell, the insulator is located at the rear of the transducer window, and the insulator is sealed and connected to the inner wall of the shell;

[0022] One end of the cable is connected to the cable interface, and after the other end of the cable passes through the insulator, two power supply ports at the end of the cable are respectively connected to the high voltage electrode and the ground electrode;

[0023] One end of the water pipe is connected to the water injection pipe interface, and the other end of the water pipe is divided into two paths, one of which is connected to the high-pressure water pipe and the other is connected to the water injection pipe. The end of the water injection pipe passes through the insulator and then extends into the transducer window; a solenoid valve is provided on the water injection pipe; the insulator is sealedly connected to the cable and the water pipe;

[0024] One end of the control line is connected to the cable interface, the other end of the control line is connected to the controller, and the solenoid valve is electrically connected to the controller;

[0025] The capsule is arranged at the transducer window. The capsule is made of a retractable insulating material. A sealed space is formed inside the capsule. The load is located in the sealed space.

[0026] In a possible implementation, the pouch is a cylindrical structure with openings at both ends, and connecting rings are provided at both ends of the pouch. The connecting rings are metal rings, and the pouch is mounted on the outer shell through the connecting rings. The connecting rings are respectively located on both sides of the transducer window.

[0027] The embodiment of the present invention further provides a method for using the shock wave generating device with a steering function, using the shock wave generating device with a steering function, comprising the following steps:

[0028] The orifice device is installed at the orifice of the borehole, and then the shock wave generating device body is placed in the borehole, and the rear end of the shock wave generating device body is connected to the front end of the cable drill rod; the rear end of the cable drill rod is connected to the pulse power driving source and the water tank;

[0029] Pushing the shock wave generating device body to the deflection point of the borehole through the cable drill rod;

[0030] The valve of the water tank is opened, and the water tank injects water into the high-pressure water pipe under the action of the booster pump. The controller controls one or two of the flow solenoid valves to operate through preset steering parameters, so that one or two of the water outlets sprays water with a set flow rate;

[0031] The guide head turns under the reaction force of the water sprayed out of the water outlet, and then continues to push the shock wave generating device body, the guide head enters the set branch hole, and after the turning is completed, the valve of the water tank and the flow solenoid valve are closed, and then the shock wave generating device body is pushed to the set shock wave operation point;

[0032] The shock wave generating device body is used to perform shock wave transmission enhancement operation on the shock wave operation point.

[0033] In a possible implementation, performing a shock wave anti-reflection operation on a shock wave operation point by using the shock wave generating device body includes the following steps:

[0034] Open the valve of the water tank, and the water tank injects water into the bag provided at the transducer window through the water injection pipe under the action of the booster pump; observe the reading of the pressure gauge on the water injection pipe, and when the reading of the pressure gauge reaches the set value, the bag expands and fits on the wall of the borehole;

[0035] The pulse power driving source discharges to the shock wave generating device body, and the shock wave generating device body generates shock waves. The shock waves directly work on the rock under the transmission of the water medium in the bag, and cause cracks in the rock. The bag is made of insulating material, and when the shock wave does work, the bag remains in an expanded state.

[0036] In one possible implementation, when the pressure sensor detects a certain pressure, one side of the end face of the second transmission shaft fork abuts against the detection disk, and the axis of the second transmission shaft fork and the axis of the first transmission shaft fork are at a set angle, that is, the shock wave generating device body and the guide head are at a set angle. At this time, the shock wave generating device body continues to be pushed until the turning of the shock wave generating device body is completed.

[0037] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0038] The embodiment of the present invention provides a shock wave generating device with a steering function and a method for using the same. When the device is in use, the steering mechanism drives the guide head to move so that the axis of the guide head and the axis of the shock wave generating device body form a set angle, that is, the guide head is directed toward the branch hole, and then when the shock wave generating device body is pushed, the shock wave generating device body can be pushed into the set branch hole. The device of the present invention can avoid the problem of the shock wave generating device being pushed into the wrong hole position, thereby ensuring that the shock wave generating device can transform the coal seam. The method performs steering through the reaction force of water, and can avoid the problem of mechanical arms, push rods and other mechanisms used for steering being easily stuck in the borehole. The method has simple operating steps and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A schematic structural diagram of a shock wave generating device with a steering function provided in an embodiment of the present invention.

[0041] Figure 2 for Figure 1 Enlarged view of point A.

[0042] Figure 3 A schematic diagram of the external structure of a shock wave generating device with a steering function provided in an embodiment of the present invention.

[0043] Figure 4 A schematic diagram of the working state of a shock wave generating device with a steering function provided in an embodiment of the present invention.

[0044] Figure 5 A schematic diagram of the azimuth angle of the guide head provided in an embodiment of the present invention.

[0045] Figure markings: 1- shock wave generating device body; 11- shell; 12- load; 13- insulator; 14- bag; 15- cable; 16- control line; 17- water pipe; 18- cable interface; 19- water injection pipe interface; 110- water injection pipe; 111- connecting ring; 2- steering mechanism; 21- high-pressure water pipe; 22- azimuth angle sensor; 23- flow solenoid valve; 24- water outlet; 3- guide head; 4- cross-axis universal joint; 41- first transmission shaft fork; 42- second transmission shaft fork; 43- cross shaft; 44- angle limit plate; 45- detection plate; 5- bellows; 6- orifice device; 7- cable drill rod; 8- pulse power drive source; 9- water tank. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the embodiments of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0048] like Figures 1 to 5 As shown, the shock wave generating device with steering function and the use method thereof provided by the embodiment of the present invention include a shock wave generating device body 1, a steering mechanism 2, and a guide head 3 arranged at the front end of the shock wave generating device body 1.

[0049] The rear end of the guide head 3 is hinged to the front end of the shock wave generating device body 1, and the steering mechanism 2 drives the guide head 3 to move so that the axis of the guide head 3 and the axis of the shock wave generating device body 1 form a set angle.

[0050] It should be noted that the steering mechanism 2 drives the guide head 3 to move so that the axis of the guide head 3 and the axis of the shock wave generating device body 1 form a set angle, that is, when the guide head 3 faces the direction of the branch hole, and then the shock wave generating device body 1 is pushed, the shock wave generating device body 1 can be pushed into the set branch hole. The device of the present invention can avoid the problem of the shock wave generating device being pushed into the wrong hole position, thereby ensuring that the shock wave generating device can transform the coal seam.

[0051] In this embodiment, the rear end of the guide head 3 is hinged to the front end of the shock wave generating device body 1 through a cross-axis universal joint 4 .

[0052] The cross-axis universal joint 4 includes a first transmission shaft fork 41, a second transmission shaft fork 42, and a cross shaft 43. The first transmission shaft fork 41 and the second transmission shaft fork 42 are connected by the cross shaft 43. The end of the first transmission shaft fork 41 is connected to the front end of the shock wave generating device body 1, and the end of the second transmission shaft fork 42 is connected to the rear end of the guide head 3.

[0053] An angle limiting plate 44 is provided on the circumference of the outer wall of the first transmission shaft fork 41, and the end face of the angle limiting plate 44 matches with the end face of the second transmission shaft fork 42. The angle limiting plate 44 makes the axis of the second transmission shaft fork 42 and the axis of the first transmission shaft fork 41 form a set angle, and the angle is in the range of 0.5° to 1°.

[0054] It should be noted that the angle limit plate 44 can prevent the angle between the axis of the guide head 3 and the shock wave generating device body 1 from being too large to affect the steering. The angle between the axis of the guide head 3 and the shock wave generating device body 1 is within the range of 0.5° to 1°, which can adapt to the angle between the branch hole and the main hole, thereby achieving precise pushing.

[0055] In this embodiment, the steering mechanism 2 includes a controller, a high-pressure water pipe 21 , an azimuth angle sensor 22 , a flow solenoid valve 23 , and a water outlet 24 disposed on the outer wall of the guide head 3 .

[0056] The azimuth angle sensor 22 is mounted on the end of the second transmission shaft fork 42 , and the azimuth angle sensor 22 is located between two sleeve forks of the second transmission shaft fork 42 .

[0057] The input shaft of the azimuth angle sensor 22 is connected to the first transmission shaft fork 41 through a connecting rod, and the input shaft of the azimuth angle sensor 22 and the first transmission shaft fork 41 are coaxially arranged.

[0058] The guide head 3 is a cylindrical body, the end of the guide head 3 is an arc-shaped structure, the number of the water outlet holes 24 is three, the three water outlet holes 24 are evenly distributed in the circumference of the side wall of the guide head 3, and the plane where the three water outlet holes 24 are located is perpendicular to the axis of the guide head 3. The orifice of the water outlet hole 24 is provided with a filter.

[0059] The high-pressure water pipe 21 is arranged in the shock wave generating device body 1, and the end of the high-pressure water pipe 21 extends into the interior of the guide head 3 and then branches into three water pipes, which are respectively connected to three water outlets 24. A flow solenoid valve 23 is arranged on each water pipe.

[0060] The azimuth angle sensor 22 and the flow solenoid valve 23 are both electrically connected to the controller.

[0061] It should be noted that the azimuth angle sensor 22 detects the azimuth angle of the guide head 3. Figure 5 As shown, at this time, the angle of the guide head 3 has been adjusted, the projection line is the projection of the axis of the guide shaft in the plane perpendicular to the axis of the shock wave generating device body 1, and the angle between the projection line and the reference line is the azimuth. The azimuth can be used to know the steering direction of the guide head 3 to achieve precise pushing of the shock wave generating device.

[0062] When the steering angle is between the two water outlet holes 24, the flow solenoid valve 23 is opened to make two of the water outlet holes 24 spray water. By adjusting the water spraying flow rate of the two water outlet holes 24, the pressure of the sprayed water can be changed. The reaction force formed by the pressure of the sprayed water can push the guide head 3 to move, thereby realizing the angle adjustment of the set azimuth. The three water outlet holes 24 evenly distributed on the circumference of the side wall of the guide head 3 can realize the all-round steering of the guide head 3.

[0063] In this embodiment, a detection disk 45 is provided on a side of the angle limiting plate 44 close to the second transmission shaft fork 42 , and a pressure sensor is provided between the detection disk 45 and the angle limiting plate 44 .

[0064] It should be noted that when the guide head 3 moves, when the pressure sensor detects a certain pressure, one side of the end face of the second transmission shaft fork 42 abuts against the detection disk 45, and the axis of the second transmission shaft fork 42 and the axis of the first transmission shaft fork 41 form a set angle, that is, the shock wave generating device body 1 and the guide head 3 form a set angle, that is, as shown in FIG. Figure 5 As shown in the direction angle, since the angle limiting plate 44 is fixedly installed, the second transmission shaft fork 42 and the first transmission shaft fork 41 are relatively fixed. At this time, the direction angle of the guide head 3 is fixed, and the shock wave generating device turns at this angle.

[0065] In this embodiment, a bellows 5 is provided between the guide head 3 and the shock wave generating device body 1 , and the universal joint is located inside the bellows 5 .

[0066] It should be noted that the bellows 5 is used to protect the universal joint, and the high-pressure water pipe 21 is located inside the bellows 5 , and the high-pressure water pipe 21 is a flexible pipe.

[0067] In this embodiment, the shock wave generating device body 1 includes a housing 11 , a load 12 for generating shock waves, an insulator 13 , a bag 14 , and a cable 15 , a control line 16 and a water pipe 17 arranged in the housing 11 .

[0068] The housing 11 is a hollow cylindrical structure. The front of the housing 11 is provided with a transducer window, which is an opening for shock waves to pass through. The rear end of the housing 11 is provided with a cable interface 18 and a water injection pipe interface 19. The interior of the housing 11 is provided with a high voltage electrode and a ground electrode.

[0069] The load 12 is arranged at the transducer window, and two ends of the load 12 are respectively connected to the high voltage electrode and the ground electrode.

[0070] An insulator 13 is disposed in the housing 11 . The insulator 13 is located at the rear of the transducer window. The insulator 13 is sealedly connected to the inner wall of the housing 11 .

[0071] One end of the cable 15 is connected to the cable interface 18, and after the other end of the cable 15 passes through the insulator 13, two power supply ports at the end of the cable 15 are respectively connected to the high voltage electrode and the ground electrode.

[0072] One end of the water pipe 17 is connected to the water injection pipe interface 19, and the other end of the water pipe 17 is divided into two paths, one of which is connected to the high-pressure water pipe 21, and the other is connected to the water injection pipe 110. The end of the water injection pipe 110 passes through the insulator 13 and extends into the transducer window. A solenoid valve is provided on the water injection pipe 110. The insulator 13 is sealed with the cable 15 and the water pipe 17.

[0073] One end of the control line 16 is connected to the cable interface 18, and the other end of the control line 16 is connected to the controller. The solenoid valve is electrically connected to the controller.

[0074] A bag 14 is provided at the transducer window. The bag 14 is made of a retractable insulating material. A sealed space is formed inside the bag 14. The load 12 is located in the sealed space.

[0075] It should be noted that the cable 15 transmits current to the load 12 through the high voltage electrode and the ground electrode, and the load 12 generates a shock wave after being energized, and the shock wave passes through the transducer window. The staff transmits the control signal to the controller through the control line 16, and the controller controls the solenoid valve and the flow solenoid valve 23 to operate.

[0076] The bag 14, the insulator 13 and the end of the housing 11 form a sealed space. When water is injected into the sealed space through the water injection pipe 110, the water can expand the bag 14. Figure 4 As shown, when the device is placed in a borehole, the side wall of the bag 14 abuts against the inner wall of the borehole. When a shock wave is generated by the load 12, the shock wave directly acts on the inner wall of the borehole through the bag 14 under the transmission of the water medium, thereby generating cracks in the rock mass. The state of the bag 14 does not change, so the bag 14 can be reused.

[0077] The present invention stores water medium in the bag 14 to work on the coal seam, avoiding the problem in the prior art that water must be injected into the borehole before shock wave operation can be performed. Therefore, when drilling over a long distance, the process of filling the borehole with water can be avoided, and work can be performed directly on the rock mass through the water bag, thereby solving the problems of poor shock wave operation effect and certain safety hazards caused by factors such as large workload during water filling, poor water retention of borehole fissures, and poor borehole sealing effect. The device of the present invention greatly improves the efficiency of shock wave operation, saves costs, is highly practical, and is easy to promote and use.

[0078] In this embodiment, the bag 14 is a cylindrical structure with openings at both ends. Connecting rings 111 are provided at both ends of the bag 14. The connecting rings 111 are metal rings. The bag 14 is mounted on the housing 11 through the connecting rings 111. The connecting rings 111 are located on both sides of the transducer window.

[0079] It should be noted that the pouch 14 is mounted on the housing 11, which facilitates the removal and installation of the pouch 14. Installing the pouch 14 through the connecting ring 111 can improve the stability of the pouch 14 after installation, so that the pouch 14 is not easy to loosen, and the connection between the connecting ring 111 and the housing 11 is a waterproof and sealed connection.

[0080] The embodiment of the present invention further provides a method for using the shock wave generating device with a steering function, using the shock wave generating device with a steering function, comprising the following steps:

[0081] The orifice device 6 is installed at the orifice of the borehole, and then the shock wave generating device body 1 is placed in the borehole, and the rear end of the shock wave generating device body 1 is connected to the front end of the cable drill rod 7. The rear end of the cable drill rod 7 is connected to the pulse power driving source 8 and the water tank 9.

[0082] The shock wave generating device body 1 is pushed to the inclination point of the borehole through the cable drill rod 7.

[0083] Open the valve of the water tank 9, and the water tank 9 injects water into the high-pressure water pipe 21 under the action of the booster pump. The controller controls one or two flow solenoid valves 23 to operate through preset steering parameters, so that one or two water outlets 24 spray water with a set flow rate.

[0084] The guide head 3 turns under the reaction force of the water sprayed from the water outlet 24, and then continues to push the shock wave generating device body 1. The guide head 3 enters the set branch hole. After the turning is completed, the valve of the water tank 9 and the flow solenoid valve 23 are closed, and then the shock wave generating device body 1 is pushed to the set shock wave operation point.

[0085] The shock wave generating device body 1 performs a shock wave transmission enhancement operation on the shock wave operation point.

[0086] It should be noted that steering by the reaction force of water can avoid the problem of mechanical arms, push rods and other mechanisms used for steering being easily stuck in the drill hole. The water bag and the steering share a water supply pipeline, thereby simplifying the structure of the device. The method is easy to operate, the operating steps are simple, and it is highly practical.

[0087] In this embodiment, the shock wave generating device body 1 performs the shock wave anti-reflection operation on the shock wave operation point, including the following steps:

[0088] Open the valve of the water tank 9, and the water tank 9 injects water into the bag 14 set at the transducer window through the water injection pipe 110 under the action of the booster pump. Observe the reading of the pressure gauge on the water injection pipe 110. When the reading of the pressure gauge is the set value, the bag 14 expands and fits on the wall of the drilled hole.

[0089] The pulse power driving source 8 discharges to the shock wave generating device body 1, and the shock wave generating device body 1 generates a shock wave. The shock wave directly works on the rock under the transmission of the water medium in the bag 14, and creates cracks in the rock. The bag 14 is made of insulating material. When the shock wave works, the bag 14 remains in an expanded state.

[0090] It should be noted that the water medium is stored in the bag 14 to work on the rock mass, which avoids the problem in the prior art that water needs to be injected into the borehole before the shock wave operation can be performed. The present invention can avoid the step of filling the borehole with water and directly work on the rock mass through the water bag. The method of the present invention can well generate cracks in the coal seam through shock waves. This method greatly improves the efficiency of shock wave operation, saves costs, is highly practical, and is easy to promote and use.

[0091] In this embodiment, when the pressure sensor detects a certain pressure, one side of the end face of the second transmission shaft fork 42 abuts against the detection disk 45, and the axis of the second transmission shaft fork 42 and the axis of the first transmission shaft fork 41 are at a set angle, that is, the shock wave generating device body 1 and the guide head 3 are at a set angle. At this time, the shock wave generating device body 1 continues to be pushed until the turning of the shock wave generating device body 1 is completed.

[0092] It should be noted that ensuring the set steering angle each time can facilitate the control of the angle and direction.

[0093] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A shock wave generating device with a steering function, characterized in that: It comprises a shock wave generating device body (1), a steering mechanism (2), and a guide head (3) arranged at the front end of the shock wave generating device body (1); The rear end of the guide head (3) is hinged to the front end of the shock wave generating device body (1), and the steering mechanism (2) drives the guide head (3) to move so that the axis of the guide head (3) and the axis of the shock wave generating device body (1) form a set angle; The rear end of the guide head (3) is hinged to the front end of the shock wave generating device body (1) via a cross-axis universal joint (4); The cross-axis universal joint (4) comprises a first transmission shaft fork (41), a second transmission shaft fork (42), and a cross shaft (43); the first transmission shaft fork (41) and the second transmission shaft fork (42) are connected via the cross shaft (43); the end of the first transmission shaft fork (41) is connected to the front end of the shock wave generating device body (1), and the end of the second transmission shaft fork (42) is connected to the rear end of the guide head (3); An angle limiting plate (44) is provided in the circumferential direction of the outer wall of the first transmission shaft fork (41), the end surface of the angle limiting plate (44) matches the end surface of the second transmission shaft fork (42), and the angle limiting plate (44) enables the axis of the second transmission shaft fork (42) and the axis of the first transmission shaft fork (41) to form a set angle, and the angle is within the range of 0.5° to 1°; The steering mechanism (2) comprises a controller, a high-pressure water pipe (21), an azimuth angle sensor (22), a flow solenoid valve (23), and a water outlet (24) arranged on the outer wall of the guide head (3); The azimuth angle sensor (22) is mounted on an end of the second transmission shaft fork (42), and the azimuth angle sensor (22) is located between two sleeve forks of the second transmission shaft fork (42); The input shaft of the azimuth angle sensor (22) is connected to the first transmission shaft fork (41) via a connecting rod, and the input shaft of the azimuth angle sensor (22) and the first transmission shaft fork (41) are coaxially arranged; The guide head (3) is a cylindrical body, the end of the guide head (3) is an arc-shaped structure, the number of the water outlet holes (24) is three, the three water outlet holes (24) are evenly distributed in the circumference of the side wall of the guide head (3), and the plane where the three water outlet holes (24) are located is perpendicular to the axis of the guide head (3); The high-pressure water pipe (21) is arranged in the body (1) of the shock wave generating device, and the end of the high-pressure water pipe (21) extends into the interior of the guide head (3) and then branches into three water pipes, the three water pipes being respectively connected to the three water outlets (24); each of the water pipes is provided with a flow solenoid valve (23); The azimuth angle sensor (22) and the flow solenoid valve (23) are both electrically connected to the controller; A bellows (5) is provided between the guide head (3) and the shock wave generating device body (1), and the universal joint is located inside the bellows (5); A detection disk (45) is provided on a side of the angle limiting plate (44) close to the second transmission shaft fork (42), and a pressure sensor is provided between the detection disk (45) and the angle limiting plate (44).

2. The shock wave generating device with a steering function according to claim 1, characterized in that: The shock wave generating device body (1) comprises a housing (11), a load (12) for generating shock waves, an insulator (13), a bag (14), and a cable (15), a control line (16) and a water pipe (17) arranged in the housing (11); The shell (11) is a cylindrical structure with a hollow interior; a transducer window is provided at the front of the shell (11); the transducer window is an opening for shock waves to pass through; a cable interface (18) and a water injection pipe interface (19) are provided at the rear end of the shell (11); a high-voltage electrode and a ground electrode are provided inside the shell (11); The load (12) is arranged at the transducer window, and two ends of the load (12) are respectively connected to the high voltage electrode and the ground electrode; The insulator (13) is arranged in the housing (11), the insulator (13) is located at the rear of the transducer window, and the insulator (13) is sealedly connected to the inner wall of the housing (11); One end of the cable (15) is connected to the cable interface (18), and after the other end of the cable (15) passes through the insulator (13), two power supply ports at the end of the cable (15) are respectively connected to the high-voltage electrode and the ground electrode; One end of the water pipe (17) is connected to the water injection pipe interface (19); the other end of the water pipe (17) is divided into two paths, one path is connected to the high-pressure water pipe (21), and the other path is connected to the water injection pipe (110); the end of the water injection pipe (110) passes through the insulator (13) and extends into the transducer window; a solenoid valve is provided on the water injection pipe (110); the insulator (13) is sealedly connected to the cable (15) and the water pipe (17); One end of the control line (16) is connected to the cable interface (18), the other end of the control line (16) is connected to the controller, and the solenoid valve is electrically connected to the controller; The capsule (14) is arranged at the transducer window, the capsule (14) is made of a retractable insulating material, a sealed space is formed inside the capsule (14), and the load (12) is located in the sealed space.

3. The shock wave generating device with a steering function according to claim 2, characterized in that: The sac (14) is a cylindrical structure with openings at both ends. Connecting rings (111) are provided at both ends of the sac (14). The connecting rings (111) are metal rings. The sac (14) is sleeved on the housing (11) via the connecting rings (111). The connecting rings (111) are respectively located on both sides of the transducer window.

4. A method for using a shock wave generating device with a steering function, characterized in that: The shock wave generating device with a steering function as claimed in any one of claims 2 or 3 comprises the following steps: An orifice device (6) is installed at the orifice of the borehole, and then the shock wave generating device body (1) is placed in the borehole, and the rear end of the shock wave generating device body (1) is connected to the front end of a cable drill rod (7); the rear end of the cable drill rod (7) is connected to a pulse power driving source (8) and a water tank (9); The shock wave generating device body (1) is pushed to the deflection point of the borehole through the cable drill rod (7); The valve of the water tank (9) is opened, and the water tank (9) injects water into the high-pressure water pipe (21) under the action of the booster pump, and the controller controls one or two of the flow solenoid valves (23) to operate according to a preset steering parameter, so that one or two of the water outlet holes (24) sprays water at a set flow rate; The guide head (3) turns under the reaction force of the water sprayed from the water outlet (24), and then continues to push the shock wave generating device body (1), and the guide head (3) enters the set branch hole. After the turning is completed, the valve of the water tank (9) and the flow solenoid valve (23) are closed, and then the shock wave generating device body (1) is pushed to the set shock wave operation point; The shock wave generating device body (1) performs a shock wave transmission enhancement operation on the shock wave operation point.

5. The method for using the shock wave generating device with a steering function according to claim 4, characterized in that: The shock wave generating device body (1) is used to carry out a shock wave anti-reflection operation on a shock wave operation point, comprising the following steps: The valve of the water tank (9) is opened, and the water tank (9) injects water into the bag (14) provided at the transducer window through the water injection pipe (110) under the action of the booster pump; the reading of the pressure gauge on the water injection pipe (110) is observed, and when the reading of the pressure gauge reaches a set value, the bag (14) expands and fits against the wall of the drilled hole; The pulse power driving source (8) discharges electricity to the shock wave generating device body (1), and the shock wave generating device body (1) generates a shock wave. The shock wave directly performs work on the rock under the transmission of the water medium in the bag (14), and causes cracks to be generated in the rock. The bag (14) is made of insulating material, and when the shock wave performs work, the bag (14) remains in an expanded state.

6. The method for using the shock wave generating device with a steering function according to claim 4, characterized in that; When the pressure sensor detects a certain pressure, one side of the end face of the second transmission shaft fork (42) abuts against the detection disk (45), and the axis of the second transmission shaft fork (42) and the axis of the first transmission shaft fork (41) form a set angle, that is, the shock wave generating device body (1) and the guide head (3) form a set angle. At this time, the shock wave generating device body (1) continues to be pushed until the shock wave generating device body (1) is turned.

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