Hydraulic punching conversion valve for low-temperature mining area

Abstract

The invention discloses a low-temperature mining area hydraulic punching conversion valve, and relates to the field of mine gas extraction equipment, the low-temperature mining area hydraulic punching conversion valve comprises a spiral motor and a drill bit, the drill bit is fixed on an output shaft of the spiral motor, a valve body is installed on the surface of the spiral motor, the top of the valve body is open, the bottom of the valve body is sealed, and a high-pressure hose is installed at the top of the valve body in a sealed mode. A plurality of stamping holes are formed in the side edge of the valve body and annularly arrayed in the surface of the valve body. According to the hydraulic punching conversion valve for the low-temperature mining area, the large-diameter hole, the small-diameter hole and the valve body are arranged, a drill bit moves downwards to drive the valve body to move through a spiral motor, sand and mud enter the small-diameter hole, and due to the fact that the inner diameter of the small-diameter hole is smaller, the amount of the sand and mud entering the small-diameter hole is smaller, and cleaning is more convenient; and meanwhile, the smoothness of water flow during falling can be guaranteed through blocking of the sealing plate, the pressure intensity of the water flow can be further increased through the small-diameter holes, silt in the small-diameter holes can be rapidly flushed out, and the punching efficiency is higher.

Description

Technical Field

[0001] The invention relates to the field of mine gas extraction equipment, and in particular to a hydraulic punching steering valve for low-temperature mining areas. Background Art

[0002] Hydraulic punching refers to a method of using the water jet ejected by a drilling rig to flush out coal and methane in a protruding coal seam or induce a controllable small protrusion, thereby causing coal body pressure relief, discharging methane, and eliminating the danger of mining protrusions. After the drilling is completed, medium and high-pressure water impacts the coal body around the borehole through a high-efficiency nozzle, flushing out a large amount of coal and gas, and concentrating the stress around the punching hole, thereby relieving pressure and increasing permeability of the coal body near the punching hole, effectively improving the extraction effect.

[0003] During the entire operation, the cooperation of the guide, universal joint and spiral motor is required. First, the guide is placed inside the drill hole, and then the universal joint is installed on the output shaft of the spiral motor. The bending direction of the universal joint is guided by the guide to change the direction of the drill hole. Then, the high-pressure nozzle is used to cooperate. The whole process is rather cumbersome and complicated.

[0004] The Chinese patent with patent number CN 202110377583.X discloses a hydraulic punching steering valve for mines, which increases the number and direction of punching holes, so that the coal body and gas have a larger range of pressure relief space, reducing the danger caused by excessive stress. However, due to the need to cooperate with water pressure shock during operation, there will be flowing water inside the steering valve. During the descent of the steering valve, the water flow is still. Due to the low working environment temperature in the mining area, it is easy to cause freezing, affecting the punching effect. However, if the steering valve descends without load, as the drill bit moves, the surrounding sand and soil will enter the interior of the steering valve, which will also have a greater impact on the punching. Summary of the invention

[0005] The main purpose of the present invention is to provide a low-temperature mining area hydraulic punching diverter valve, which can effectively solve the problems in the background technology.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a low-temperature mining area hydraulic punching steering valve, including a spiral motor and a drill bit, the drill bit is fixed on the output shaft of the spiral motor, a valve body is installed on the surface of the spiral motor, the top of the valve body is open and the bottom is sealed, a high-pressure hose is installed on the top of the valve body, and a plurality of punching holes are opened on the side of the valve body, and a circular array is arranged on the surface of the valve body; The stamping hole includes a large diameter hole and a small diameter hole, the large diameter hole is connected to the interior of the valve body, the small diameter hole is connected to the exterior of the valve body, an inclined hole is opened between the large diameter hole and the small diameter hole, a sealing plate is installed inside the inclined hole, and a moving component is installed inside the valve body to open the sealing plate.

[0007] The moving component includes a circular extrusion plate, an annular groove is opened inside the valve body, the interior of the annular groove is connected to the interior of the large diameter hole, the extrusion plate is movably installed inside the annular groove through a supporting component, the top of the extrusion plate is against the top of the inner wall of the annular groove, the bottom of the extrusion plate is set at a distance from the bottom of the inner wall of the annular groove, and a plurality of connecting rods are fixedly installed on the side of the extrusion plate, and the ends of the connecting rods are connected to the sealing plate through torsion springs.

[0008] A mounting frame is fixedly installed on the side of the sealing plate, a rotating shaft is fixedly installed on the end of the connecting rod, and the rotating shaft is movably arranged inside the mounting frame. Circular grooves are opened on both sides of the end of the connecting rod, and the torsion spring is sleeved on the surface of the rotating shaft. One end of the torsion spring is fixed inside the circular groove, and the other end of the torsion spring is fixed inside the mounting frame.

[0009] The support assembly comprises a support spring, the support spring is installed inside the valve body, and one end of the support spring is fixed to the lower surface of the extrusion plate.

[0010] A permanent magnet block is fixedly installed at the bottom of the inner wall of the valve body, and the permanent magnet block is located directly below the extrusion plate. The other end of the support spring is fixed to the surface of the permanent magnet block. The extrusion plate is made of a metal material containing iron, cobalt and nickel. A shielding plate is arranged below the permanent magnet block.

[0011] The spiral motor is a dual-shaft motor, the top of the output shaft of the spiral motor is fixedly connected to a mounting plate, the valve body is fixed to the upper surface of the mounting plate through a connecting component, a sealed bearing is fixedly installed on the inner side of the top of the valve body, and an externally threaded pipe is fixedly installed inside the sealed bearing.

[0012] The connection assembly comprises a C-shaped buckle rod, which is mounted on the lower surface of the valve body. An L-shaped clamping rod is mounted on the upper surface of the mounting plate, and the clamping rod is inserted into the interior of the buckle rod.

[0013] There are two buckle rods and two clamping rods, which are symmetrically arranged at corresponding positions of the valve body and the mounting plate. A transverse groove is provided on the surface of the mounting plate. One end of the clamping rod is movably installed inside the transverse groove. A guide rod is fixedly installed inside the transverse groove. The end of the guide rod movably passes through the surface of the clamping rod. A connecting spring is sleeved on the surface of the guide rod. One end of the connecting spring is fixed on the surface of the clamping rod, and one end of the connecting spring is fixed inside the transverse groove. A gap is set between the side of the clamping rod and the side of the transverse groove close to the center of the mounting plate.

[0014] A distance is set between the side of the clamping rod and the side of the transverse groove close to the edge of the mounting plate. A transverse plate is fixedly mounted on the side of the clamping rod. The transverse plate and the clamping rod are an integrally formed structure.

[0015] The lower surface of the valve body is provided with four grooves, the end of the buckle rod is movably mounted inside the groove, a mounting spring is arranged inside the groove, one end of the mounting spring is fixed to the inner wall of the groove, and the other end of the mounting spring is fixed to the end of the buckle rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by setting a large-diameter hole, a small-diameter hole and a valve body, the drill bit moves downward and drives the valve body to move through the spiral motor, and sand and mud will enter the inside of the small-diameter hole. Since the inner diameter of the small-diameter hole is smaller, the amount of sand and mud entering the inside is less, and it is more convenient to clean. At the same time, the blocking of the sealing plate can ensure the smoothness of the water flow when falling, and the small-diameter hole can further increase the pressure of the water flow, so that the internal sand and mud of the small-diameter hole can be quickly flushed out, and the punching efficiency is also higher.

[0017] 2. In the present invention, by providing a support spring, a sealing plate and a torsion spring, the extrusion plate moves downward under the action of water pressure, and the support spring is compressed. At this time, the connecting rod drives the sealing plate to move downward. Since the sealing plate is located inside the inclined hole, its surface is arranged to be inclined. Therefore, the sealing plate will rotate around the end of the connecting rod until it rests on the inclined surface of the inclined hole. At this time, the sealing plate is opened. No additional power is required in this process, which reduces the installation pressure of the internal space of the valve body and also reduces the use cost.

[0018] 3. In the present invention, by setting a permanent magnet block and an extrusion plate, when the water flow impacts the surface of the extrusion plate, the distance between the extrusion plate and the permanent magnet block is reduced, and the adsorption force will increase until the extrusion plate is located at the bottom of the inner wall of the annular groove, and is in a stable state at this time. After that, there is no need for the water flow to provide continuous pressure to ensure the state of the extrusion plate. At this time, the pressure of the water flow is all applied to the position of the small-diameter hole, so the water pressure at the small-diameter hole will also be greater, and the punching efficiency will be higher.

[0019] 4. In the present invention, by setting a spiral motor, a mounting plate and a valve body, due to the high-speed operation of the spiral motor, friction will be generated between the valve body and the inner wall of the borehole, and the faster the rotation speed, the higher the friction heat. The generated heat can be exchanged with the water flow entering the valve body. Since punching is carried out in a low-temperature mining area, the punching water with a certain temperature can melt and penetrate the soil that may be frozen more quickly, thereby improving the efficiency of punching. At the same time, the water flow completes the heat exchange with the frozen soil during the punching process, and will not cause a safety threat to the gas and coal body.

[0020] 5. In the present invention, a transverse groove, a mounting plate and a clamping rod are provided, and a distance is provided on one side of the transverse groove close to the edge of the mounting plate. Since the mounting plate can rotate along with the spiral motor, the clamping rod is located inside the mounting plate and will be away from the center of the mounting plate due to the centrifugal force. At this time, the clamping rod can be firmly stuck inside the buckle rod, and the valve body will not fall off easily, thereby ensuring the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a hydraulic punching and steering valve for low-temperature mining areas of the present invention; Figure 2 It is a schematic cross-sectional structure diagram of a valve body of a hydraulic punching diverter valve for low-temperature mining areas according to the present invention; Figure 3 It is a schematic diagram of the structure of the torsion spring position of a hydraulic punching steering valve in a low-temperature mining area according to the present invention; Figure 4 It is a schematic diagram of the structure of the extrusion plate position of a hydraulic punching diverter valve in a low-temperature mining area according to the present invention; Figure 5 It is a schematic diagram of the structure of the connecting rod position of a hydraulic punching diverter valve in a low-temperature mining area according to the present invention; Figure 6 It is a structural schematic diagram of the sealing bearing position of a hydraulic punching steering valve in a low-temperature mining area according to the present invention; Figure 7 It is a schematic diagram of the structure of the transverse groove position of a hydraulic punching diverter valve in a low-temperature mining area according to the present invention; Figure 8 It is a schematic diagram of the connection spring position of a low-temperature mining hydraulic punching diverter valve according to the present invention; Fig. 9 It is a schematic diagram of the structure of the clamping rod position of a hydraulic punching steering valve in a low-temperature mining area according to the present invention; Fig.10 It is a partial structural schematic diagram of the groove position of a low-temperature mining area hydraulic punching diverter valve according to the present invention.

[0022] In the figure: 1. spiral motor; 2. drill bit; 3. valve body; 4. stamping hole; 5. large diameter hole; 6. small diameter hole; 7. inclined hole; 8. sealing plate; 9. extrusion plate; 10. annular groove; 11. mounting spring; 12. connecting rod; 13. torsion spring; 14. mounting frame; 15. rotating shaft; 16. circular groove; 17. supporting spring; 18. permanent magnet block; 19. mounting plate; 20. sealed bearing; 21. external threaded pipe; 22. buckle rod; 23. clamping rod; 24. transverse groove; 25. guide rod; 26. connecting spring; 27. transverse plate; 28. groove; 29. ​​shielding plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figure 1-10 As shown, a low-temperature mining hydraulic punching steering valve includes a spiral motor 1 and a drill bit 2. Figure 1 As shown, the spiral motor 1 itself has an anti-rotation structure, the drill bit 2 is fixed on the output shaft of the spiral motor 1, the drill bit 2 is located below the spiral motor 1, a valve body 3 is installed on the surface of the spiral motor 1, and the valve body 3 is located above the spiral motor 1. When the spiral motor 1 rotates, the drill bit 2 plays a role in drilling movement, and the valve body 3 moves with the drive of the spiral motor 1. The top of the valve body 3 is open and the bottom is sealed. A high-pressure hose is installed on the top seal of the valve body 3, and high-pressure water is introduced into the interior of the valve body 3 through the high-pressure hose. A plurality of stamping holes 4 are opened on the side of the valve body 3. In this embodiment, the number of the stamping holes 4 is set to four, and the annular array is on the surface of the valve body 3; The punching hole 4 includes a large diameter hole 5 and a small diameter hole 6. Figure 2 As shown, water flows into the interior of the large-diameter hole 5 and flows out from the position of the small-diameter hole 6. Since the diameter of the hole is changed, the water flow entering the valve body 3 can be further pressurized, thereby increasing the pressure of the water flow. The impact effect on partially frozen soil in low-temperature mining areas will be better. The large-diameter hole 5 is connected to the interior of the valve body 3, and the small-diameter hole 6 is connected to the outside of the valve body 3. An inclined hole 7 is opened between the large-diameter hole 5 and the small-diameter hole 6 for communication. A sealing plate 8 is installed inside the inclined hole 7, and the sealing plate 8 separates the small-diameter hole 6 from the inclined hole 7. Since the diameter of the small-diameter hole 6 is small, the amount of sand and mud from the surrounding soil entering the small-diameter hole 6 is small, and it can be easily flushed open by high-pressure water. A moving component is installed inside the valve body 3 to open the sealing plate 8.

[0025] During the punching process, the spiral motor 1 is first turned on to allow the drill bit 2 to drill. The drill bit 2 moves downward and drives the valve body 3 to move through the spiral motor 1 until the drill bit 2 moves to the specified position. At this time, sand and mud will enter the inside of the small-diameter hole 6. The blocking effect of the sealing plate 8 can prevent the sand and mud from further entering the inside of the large-diameter hole 5. At the same time, there is less sand and mud inside the small-diameter hole 6, which is more convenient to clean, ensuring the smoothness of the water flow when falling. At this time, the sealing plate 8 is opened by the moving component, and the water flows through the valve body 3, the large-diameter hole 5 and the inclined hole 7, and flows out from the inside of the small-diameter hole 6. At this time, the small-diameter hole 6 has a smaller inner diameter, so the water pressure can be increased, so that the internal sand and mud of the small-diameter hole 6 are quickly flushed out, and the punching efficiency is also higher. During the drilling process, since there is no need to make the water flow inside the valve body 3, the problem of water flow freezing is avoided as much as possible.

[0026] The moving component includes a circular extrusion plate 9. An annular groove 10 is provided inside the valve body 3. The diameter of the extrusion plate 9 is just matched with the inner diameter of the annular groove 10. The interior of the annular groove 10 is connected with the interior of the large-diameter hole 5. The extrusion plate 9 is movably installed in the annular groove 10 through a supporting component. The side of the extrusion plate 9 just abuts against the entrance position of the large-diameter hole 5. The top of the extrusion plate 9 abuts against the top of the inner wall of the annular groove 10. The bottom of the extrusion plate 9 is set at a distance from the bottom of the inner wall of the annular groove 10, so that the extrusion plate 9 has space to move downward, and when the extrusion plate 9 moves down to the bottommost position, the large-diameter hole 5 is exposed. A plurality of connecting rods 12 are fixedly installed on the side of the extrusion plate 9. The number of the connecting rods 12 is the same as the number of the stamping holes 4 and the positions correspond. The end of the connecting rod 12 is installed and connected to the sealing plate 8 by a torsion spring 13. The initial state of the torsion spring 13 is to make the sealing plate 8 and the connecting rod 12 in a vertical state.

[0027] When high-pressure water flows into the interior of the valve body 3, the pressure of the water flow is greater than the supporting force of the supporting assembly. At this time, the extrusion plate 9 moves downward under the action of the water pressure. At this time, the connecting rod 12 drives the sealing plate 8 to move downward. Since the sealing plate 8 is located inside the inclined hole 7, its surface is set to be inclined. When the sealing plate 8 is subjected to a lateral downward pulling force, the sealing plate 8 will rotate around the end of the connecting rod 12 until it rests on the inclined surface of the inclined hole 7. At this time, the sealing plate 8 is opened. No additional power is required in this process, which reduces the installation pressure of the internal space of the valve body 3 and also reduces the cost of use.

[0028] A mounting frame 14 is fixedly installed on the side of the sealing plate 8, and the mounting frame 14 and the sealing plate 8 are an integrated molding structure. A rotating shaft 15 is fixedly installed on the end of the connecting rod 12, and the rotating shaft 15 is movably arranged inside the mounting frame 14. Circular grooves 16 are provided on both sides of the end of the connecting rod 12, and the torsion spring 13 is sleeved on the surface of the rotating shaft 15. One end of the torsion spring 13 is fixed inside the circular groove 16, and the other end of the torsion spring 13 is fixed inside the mounting frame 14. When the sealing plate 8 rotates, the torsion spring 13 is in a wound state. Therefore, when the extrusion plate 9 returns to the initial state, the rebound force of the torsion spring 13 will cause the sealing plate 8 to return to its initial position.

[0029] The support assembly includes a support spring 17, which is installed inside the valve body 3. One end of the support spring 17 is fixed to the lower surface of the extrusion plate 9. When water flows downward, it will first squeeze the support spring 17 to compress it. During the punching process, as long as the water pressure is always maintained, the large diameter hole 5 can be kept in an open state. When punching is no longer performed, the rebound force of the support spring 17 can return the extrusion plate 9 to its initial state without the need for readjustment, which is convenient for the next use.

[0030] A permanent magnet block 18 is fixedly installed at the bottom of the inner wall of the valve body 3. The permanent magnet block 18 is located directly below the extrusion plate 9. There is a certain distance between the permanent magnet block 18 and the extrusion plate 9. The other end of the support spring 17 is fixed to the surface of the permanent magnet block 18. The extrusion plate 9 is made of a metal material containing iron, cobalt and nickel, so that the extrusion plate 9 can be adsorbed by the permanent magnet block 18. A shielding plate 29 is arranged under the permanent magnet block 18 to shield the magnetism of the permanent magnet block 18 to reduce the impact on the use of the spiral motor 1.

[0031] According to the calculation formula of the magnet's adsorption force: F(d)=K*(m1*m2) / d^2, the closer the distance between the extrusion plate 9 and the permanent magnet block 18 is, the greater the adsorption force will be. In the initial state, the adsorption force of the permanent magnet block 18 on the extrusion plate 9 is less than the sum of the friction and other resistances affected by the support spring 17 and the torsion spring 13. When the water flow impacts the surface of the extrusion plate 9, the distance between the extrusion plate 9 and the permanent magnet block 18 is reduced, and the adsorption force will increase by square times until the extrusion plate 9 is located at the bottom of the inner wall of the annular groove 10, and is in a stable state at this time. After that, there is no need for the water flow to provide continuous pressure to ensure the state of the extrusion plate 9. At this time, the pressure of the water flow is all applied to the position of the small-diameter hole 6, so the water pressure at the mouth of the small-diameter hole 6 will also be greater.

[0032] When punching is no longer required, since the extrusion plate 9 is not in full contact with the permanent magnet block 18, the valve body 3 can be swung to use inertia to return the extrusion plate 9 to its original state, or a magnetic block with greater magnetism can be used to adsorb the extrusion plate 9 from the open side of the valve body 3.

[0033] The screw motor 1 is a double-shaft motor, that is, there are rotating shafts on both sides of the motor. The top of the output shaft of the screw motor 1 is fixedly connected to a mounting plate 19. The mounting plate 19 is a circular plate with the same diameter as the valve body 3. The valve body 3 is fixed to the upper surface of the mounting plate 19 through a connecting component. Figure 6 As shown, a sealing bearing 20 is fixedly installed on the inner side of the top of the valve body 3, an external threaded tube 21 is fixedly installed inside the sealing bearing 20, and a high-pressure hose is installed on the surface of the external threaded tube 21, and the high-pressure hose will not rotate with the valve body 3.

[0034] When the spiral motor 1 rotates, it can not only drive the drill bit 2 to rotate, but also drive the valve body 3 to rotate. Due to the high-speed operation of the spiral motor 1, friction will be generated between the valve body 3 and the inner wall of the borehole, and the faster the rotation speed, the higher the friction heat. Therefore, in the process of the spiral motor 1 moving downward, the valve body 3 and the inner wall of the borehole generate continuous high-temperature heat. The heat generated can exchange heat with the water flow entering the valve body 3. Since punching is carried out in a low-temperature mining area, the punching water with a certain temperature can melt and penetrate the soil that may be frozen more quickly. At the same time, the water flow completes the heat exchange with the frozen soil during the punching process, and will not cause a safety threat to gas and coal.

[0035] The connecting assembly includes a C-shaped buckle rod 22 , which is mounted on the lower surface of the valve body 3 . An L-shaped clamping rod 23 is mounted on the upper surface of the mounting plate 19 , and the clamping rod 23 is inserted into the interior of the buckle rod 22 .

[0036] There are two buckle rods 22 and two clamping rods 23, which are symmetrically arranged at corresponding positions of the valve body 3 and the mounting plate 19 respectively. Two transverse grooves 24 are provided on the surface of the mounting plate 19. One end of the clamping rod 23 is movably installed in the inside of the transverse groove 24. A guide rod 25 is fixedly installed in the inside of the transverse groove 24. The end of the guide rod 25 movably passes through the surface of the clamping rod 23. A connecting spring 26 is sleeved on the surface of the guide rod 25. One end of the connecting spring 26 is fixed on the surface of the clamping rod 23, and one end of the connecting spring 26 is fixed in the inside of the transverse groove 24. A distance is set between the side of the clamping rod 23 and the side of the transverse groove 24 close to the center position of the mounting plate 19 to ensure that the clamping rod 23 can move toward the center side of the mounting plate 19. During installation, the two clamping rods 23 are moved toward each other, the valve body 3 is placed above the mounting plate 19, and the elasticity of the connecting spring 26 is utilized to make it buckle in the inside of the buckle rod 22.

[0037] A distance is set between the side of the clamping rod 23 and the side of the transverse groove 24 close to the edge of the mounting plate 19. Since the mounting plate 19 can rotate with the spiral motor 1, the clamping rod 23 is located inside the mounting plate 19. Therefore, it will be away from the center of the mounting plate 19 due to the centrifugal force. At this time, the clamping rod 23 can be firmly stuck inside the buckle rod 22, and the valve body 3 will not fall off easily, thereby ensuring the stability of the installation. A transverse plate 27 is fixedly installed on the side of the clamping rod 23, which has a certain shielding effect on the transverse groove 24, and the transverse plate 27 and the clamping rod 23 are an integrally formed structure.

[0038] Four grooves 28 are provided on the lower surface of the valve body 3, and the ends of the lever 22 are movably mounted inside the grooves 28. A mounting spring 11 is provided inside the grooves 28, and one end of the mounting spring 11 is fixed to the inner wall of the grooves 28, and the other end of the mounting spring 11 is fixed to the end of the lever 22. The lever 22 can only move along the axial direction of the grooves 28. At this time, since it is inconvenient to disassemble the valve body 3, the valve body 3 is pulled upward so that there is a larger gap between it and the mounting plate 19, which facilitates the movement of the position of the clamping rod 23.

[0039] It should be noted that the present invention is a hydraulic punching steering valve for low-temperature mining areas. When in use, the two clamping rods 23 are moved toward each other, the valve body 3 is placed above the mounting plate 19, and the elasticity of the connecting spring 26 is used to buckle it inside the buckle rod 22, and the high-pressure hose is installed on the surface of the external threaded tube 21. The spiral motor 1 is turned on to allow the drill bit 2 to drill a hole. The drill bit 2 moves downward and drives the movement of the valve body 3 through the spiral motor 1 until the drill bit 2 moves to the specified position. At this time, sand and mud will enter the small-diameter hole 6, and the blocking effect of the sealing plate 8 can prevent the sand and mud from entering. The connecting rod 12 drives the sealing plate 8 to move downward. Since the sealing plate 8 is located inside the inclined hole 7, its surface is set to be inclined. When the sealing plate 8 is subjected to the lateral downward pulling force, the sealing plate 8 will rotate around the end of the connecting rod 12 until it contacts the inclined surface of the inclined hole 7. At this time, the sealing plate 8 opens, and water flows through the valve body 3, the large diameter hole 5 and the inside of the inclined hole 7. , flowing out from the inside of the small-diameter hole 6. At this time, the small-diameter hole 6 has a smaller inner diameter, so the pressure of the water flow can be increased, so that the internal sediment of the small-diameter hole 6 is quickly flushed out, and the punching efficiency is also higher. In this process, the distance between the extrusion plate 9 and the permanent magnet block 18 decreases, and the adsorption force increases by a square multiple until the extrusion plate 9 is located at the bottom of the inner wall of the annular groove 10, and is in a stable state at this time. After that, there is no need for the water flow to provide continuous pressure to ensure the state of the extrusion plate 9. At this time, the pressure of the water flow is all applied to the position of the small-diameter hole 6, so the water pressure of the small-diameter hole 6 will also The valve body 3 is larger and the spiral motor 1 rotates, driving the valve body 3 to rotate, which will cause friction between the valve body 3 and the inner wall of the borehole. The faster the rotation speed, the higher the friction heat. The valve body 3 and the inner wall of the borehole generate continuous high-temperature heat. The heat generated can exchange heat with the water flow entering the valve body 3, and the punching efficiency in low-temperature mining areas is higher. Finally, when the spiral motor 1 is taken out, the valve body 3 is pulled upward to have a larger gap between it and the mounting plate 19, and the position of the clamping rod 23 is moved, so that the valve body 3 can be quickly removed for inspection.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A low-temperature mining hydraulic punching steering valve, comprising a screw motor (1) and a drill bit (2), wherein the drill bit (2) is fixed on the output shaft of the screw motor (1), characterized in that: A valve body (3) is installed on the surface of the spiral motor (1); the top of the valve body (3) is open and the bottom is sealed; a high-pressure hose is installed on the top of the valve body (3); a plurality of punching holes (4) are opened on the side of the valve body (3) in an annular array on the surface of the valve body (3); The punching hole (4) comprises a large-diameter hole (5) and a small-diameter hole (6); the large-diameter hole (5) is connected to the interior of the valve body (3); the small-diameter hole (6) is connected to the exterior of the valve body (3); an inclined hole (7) is provided between the large-diameter hole (5) and the small-diameter hole (6) for communication; a sealing plate (8) is installed inside the inclined hole (7); and a moving component is installed inside the valve body (3) so that the sealing plate (8) is opened.

2. A low temperature mining hydraulic punching diverter valve according to claim 1, characterized in that: The moving assembly comprises a circular extrusion plate (9), an annular groove (10) is provided inside the valve body (3), the interior of the annular groove (10) is communicated with the interior of the large-diameter hole (5), the extrusion plate (9) is movably mounted inside the annular groove (10) via a supporting assembly, the top of the extrusion plate (9) abuts against the top of the inner wall of the annular groove (10), the bottom of the extrusion plate (9) is spaced from the bottom of the inner wall of the annular groove (10), a plurality of connecting rods (12) are fixedly mounted on the side of the extrusion plate (9), and the ends of the connecting rods (12) are mounted and connected to the sealing plate (8) via torsion springs (13).

3. A low temperature mining hydraulic punching diverter valve according to claim 2, characterized in that: A mounting frame (14) is fixedly mounted on the side of the sealing plate (8); a rotating shaft (15) is fixedly mounted on the end of the connecting rod (12); the rotating shaft (15) is movably arranged inside the mounting frame (14); circular grooves (16) are provided on both sides of the end of the connecting rod (12); the torsion spring (13) is sleeved on the surface of the rotating shaft (15); one end of the torsion spring (13) is fixed inside the circular groove (16); and the other end of the torsion spring (13) is fixed inside the mounting frame (14).

4. A low temperature mining hydraulic punching diverter valve according to claim 2, characterized in that: The support assembly comprises a support spring (17), wherein the support spring (17) is installed inside the valve body (3), and one end of the support spring (17) is fixed to the lower surface of the extrusion plate (9).

5. The low-temperature mining hydraulic punching diverter valve according to claim 4 is characterized by: A permanent magnet block (18) is fixedly mounted on the bottom of the inner wall of the valve body (3), the permanent magnet block (18) is located directly below the extrusion plate (9), the other end of the support spring (17) is fixed to the surface of the permanent magnet block (18), the extrusion plate (9) is made of a metal material containing iron, cobalt and nickel, and a shielding plate (29) is arranged below the permanent magnet block (18).

6. The low-temperature mining hydraulic punching diverter valve according to claim 1, characterized in that: The screw motor (1) is a dual-shaft motor. The top of the output shaft of the screw motor (1) is fixedly connected to a mounting plate (19). The valve body (3) is fixed to the upper surface of the mounting plate (19) via a connecting assembly. A sealed bearing (20) is fixedly mounted on the inner side of the top of the valve body (3). An externally threaded tube (21) is fixedly mounted inside the sealed bearing (20).

7. A low temperature mining hydraulic punching diverter valve according to claim 6, characterized in that: The connection assembly comprises a C-shaped buckle rod (22), the buckle rod (22) being mounted on the lower surface of the valve body (3), and an L-shaped clamping rod (23) being mounted on the upper surface of the mounting plate (19), the clamping rod (23) being inserted into the interior of the buckle rod (22).

8. The low-temperature mining hydraulic punching diverter valve according to claim 7, characterized in that: The buckle rod (22) and the clamp rod (23) are each provided with two in number and are symmetrically arranged at corresponding positions of the valve body (3) and the mounting plate (19), respectively. A transverse groove (24) is provided on the surface of the mounting plate (19), one end of the clamp rod (23) is movably mounted inside the transverse groove (24), a guide rod (25) is fixedly mounted inside the transverse groove (24), the end of the guide rod (25) movably penetrates the surface of the clamp rod (23), a connecting spring (26) is sleeved on the surface of the guide rod (25), one end of the connecting spring (26) is fixed on the surface of the clamp rod (23), one end of the connecting spring (26) is fixed inside the transverse groove (24), and a gap is provided between the side surface of the clamp rod (23) and the side of the transverse groove (24) close to the center position of the mounting plate (19).

9. A low-temperature mining hydraulic punching diverter valve according to claim 8, characterized in that: A distance is set between the side of the clamping rod (23) and the side of the transverse groove (24) close to the edge of the mounting plate (19); a transverse plate (27) is fixedly mounted on the side of the clamping rod (23); and the transverse plate (27) and the clamping rod (23) are an integrally formed structure.

10. The low-temperature mining hydraulic punching diverter valve according to claim 8, characterized in that: The lower surface of the valve body (3) is provided with four grooves (28), the end of the buckle rod (22) is movably mounted inside the groove (28), a mounting spring (11) is arranged inside the groove (28), one end of the mounting spring (11) is fixed to the inner wall of the groove (28), and the other end of the mounting spring (11) is fixed to the end of the buckle rod (22).

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