Energy-saving mining arc-shaped super wear-resistant chamfering drill bit

Abstract

The invention relates to the technical field of mining drill bits, and discloses an energy-saving mining arc-shaped super wear-resistant chamfering drill bit which comprises a drill bit body, a turbine motor fixedly installed at one end of the drill bit body, a guide device arranged at the end of the turbine motor and used for controlling the drilling direction of the drill bit body, and a drill rod fixedly installed at one end of the guide device. According to the chamfering drill bit, magnetic repulsive force between the electromagnet and the magnetic column is used for pushing the magnetic column to slide in the fixing rod, the magnetic column is driven by the magnetic repulsive force between the electromagnet and the magnetic column, and the magnetic column is driven by magnetic attraction force of the magnetic column to the magnetic beads, so that the magnetic beads can be driven to rotate, and the chamfering effect is improved. When the drill bit body deviates, the telescopic rod inclines in the fixing rod, the magnetic beads push the limiting blocks to move towards the outside of the fixing rod, balls on the outer walls of the limiting blocks abut against the inner wall of the drill bit body, and resistance is provided to prevent the drill bit body from deviating by an overlarge angle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining drill bits, in particular to an energy-saving mining isolated super-wear chamfer drill bit. BACKGROUND

[0002] The mining arc chamfer drill bit is a high-performance drilling tool optimized for hard rock strata, and its core design is that the diamond composite cutting tooth adopts an arc-shaped geometric structure, which significantly improves drilling efficiency and durability by changing the rock breaking mechanical behavior. When directional drilling is performed, the turbine motor converts the fluid kinetic energy in the high-pressure drilling fluid into mechanical energy to drive the drill bit to drill, the high-pressure drilling fluid is also ejected through the jet holes at the end of the drill bit and carries the broken rock debris at the end of the drill bit out through the adjacent chip removal grooves, preventing the broken rock debris from accumulating at the end of the drill bit, and the guide device can control the drilling direction of the drill bit, allowing the drill bit to drill at a certain angle to avoid some complex strata at the bottom as much as possible, improve drilling efficiency, and reduce the risk and cost of drilling. When the drill bit is directionally drilled in the rock strata, it may encounter soft and hard layered rock strata. The drill bit contacts the hard rock strata on one side, and the resistance is correspondingly large, resulting in small feed amount. The other side contacts the soft rock strata, and the resistance is correspondingly small, resulting in large feed amount. The drill bit is easy to deviate to the side of the harder rock strata. When the rock strata have inclined hard rock strata, the drill bit may also deviate upward along the inclined surface. Therefore, the drill bit is easy to deviate due to the hardness and angle of the rock strata, and cannot accurately directionally drill. At the same time, it may cause deformation of the drill hole, the gap between the chip removal groove at the end of the drill bit and the inner wall of the hole becomes small, the drilling fluid cannot carry out the rock debris, and the rock debris is easy to accumulate in the chip removal groove, increasing the wear of the drill bit and reducing the drilling efficiency of the drill bit. SUMMARY

[0003] The present application aims to provide an energy-saving mining isolated super-wear chamfer drill bit to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an energy-saving mining isolated super-wear chamfer drill bit, comprising a drill bit body, a turbine motor fixedly installed at one end of the drill bit body, a guide device arranged at the end of the turbine motor for controlling the drilling direction of the drill bit body, a drill rod fixedly installed at one end of the guide device, a plurality of blade wings fixedly installed on the drill bit body, the blade wings being arranged in a circle, and a chip removal groove being arranged between adjacent two blade wings, a plurality of drill teeth fixedly installed on each blade wing, a through hole coaxially arranged in the drill bit body and the turbine motor, a flow guide bin arranged in the drill bit body and communicating with the through hole, and a jet hole arranged in each chip removal groove and communicating with the flow guide bin.

[0005] Preferably, a fixed rod is coaxially fixedly installed inside the guide device. One end of the fixed rod passes through a through hole and is inserted into the flow guide chamber. The fixed rod is provided with several movable slots, and each movable slot is provided with a limit rod. A limit plate is provided inside the fixed rod. One end of each limit rod is fixedly connected to the limit plate, and the other end abuts against the inner wall of the drill bit body. A telescopic rod is fixedly installed on one side of the limit plate. A universal joint is fixedly installed on the telescopic rod. A limit ring for limiting the universal joint is fixedly installed inside the fixed rod. A magnetic bead is fixedly installed at the end of the telescopic rod. An electromagnet that generates magnetic force when energized is fixedly installed in the fixed rod. One end of the electromagnet is connected to a magnetic column for generating magnetic attraction to the magnetic bead through a spring. The magnetic column and the electromagnet are magnetically repelled. Several limit blocks that are limited by the magnetic bead are slidably installed on the fixed rod. The limit blocks are arranged in a circle, and magnetic strips are fixedly installed on both sides of each limit block. Adjacent magnetic strips are magnetically attracted to each other.

[0006] Preferably, a universal ball is movably mounted at the end of the fixed rod, and a guide plate for controlling the flow direction of drilling fluid is rotatably mounted on the universal ball. A sleeve is provided between the universal ball and the limiting plate, and a universal shaft is also fixedly mounted on the sleeve. The limiting ring corresponds one-to-one with the universal shaft. Sliding rods are slidably mounted at both ends of the sleeve, and the two sliding rods are movably connected to the limiting plate and the universal ball, respectively.

[0007] Preferably, a guide ring is fixedly installed on the outer wall of the end of the fixed rod, and a locking block that cooperates with the guide ring is rotatably installed on the inner walls of both sides of the guide plate.

[0008] Preferably, a sliding plate is slidably installed on both sides of the flow guide plate, and a plurality of guide strips for limiting the sliding plate are fixedly installed on both sides of the flow guide plate. A limiting post is fixedly installed on the upper end of each sliding plate, and a plurality of arc-shaped strips for limiting the limiting post are fixedly installed on the inner wall of the flow guide chamber. The arc-shaped strips correspond one-to-one with the blade.

[0009] Preferably, a rubber ring is fixedly installed on each of the slide plates, and each of the rubber rings is provided with holes for drilling fluid to pass through. The elasticity of the rubber ring itself is less than the impact force of the drilling fluid.

[0010] Preferably, a number of sets of elastic rods are slidably installed on the fixed rod. Each set of elastic rods consists of two elastic rods, and the two corresponding elastic rods are arranged symmetrically. A magnetic block that attracts each other is fixedly installed at one end of each elastic rod. One end of each magnetic block is arc-shaped and located on the trajectory of the magnetic column. One end of the magnetic column is also arc-shaped.

[0011] Preferably, each of the limiting rod ends is provided in an arc shape, and the inner wall of the drill bit body is provided with a sliding groove for limiting the end of the limiting rod, and the sliding groove is arranged in a ring.

[0012] Preferably, a sealing ring for preventing drilling fluid from entering the fixed rod is fixedly installed in the movable groove. The sealing ring is made of elastic material and is sleeved on the corresponding limiting rod.

[0013] Preferably, a guide tube is fixedly installed inside each of the nozzles, the inner wall of each guide tube is conical, and a threaded strip is fixedly installed on its inner wall. The end of each elastic rod is set in an arc shape to reduce friction, and a ball bearing for reducing friction is also provided on the outer side of each limiting block.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the magnetic repulsion between an electromagnet and a magnetic column to propel the magnetic column to slide within a fixed rod. The magnetic attraction of the magnetic column to a magnetic bead causes the telescopic rod to extend, and the magnetic bead moves between the limiting blocks. When the drill bit body deviates, the telescopic rod tilts within the fixed rod, and the magnetic bead pushes the limiting block outwards. The outer wall of the limiting block's ball bearings then abut against the inner wall of the drill bit body, providing resistance to prevent excessive deviation. The greater the deviation angle of the drill bit body, the greater the resistance. Regardless of the direction of deviation, a corresponding limiting block abuts against its inner wall to provide resistance.

[0015] This invention utilizes the magnetic repulsion of an electromagnet to push the arc-shaped surface at the end of a magnetic column to sequentially contact the arc-shaped surface of the magnetic block at the end of each elastic rod. The elastic rod moves along the arc-shaped surface at the end of the magnetic column, extends outward towards the fixed rod, and abuts against the inner wall of the drill bit body. This effectively reduces the vibration of the drill bit body during drilling and the continuous relative movement between it and the fixed rod. At the same time, it provides a certain supporting force to the fixed rod, preventing the fixed rod from deforming due to excessive offset force of the drill bit body, and also provides a certain resistance to the offset of the drill bit body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the through hole and fixing rod structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the drill bit body of the present invention; Figure 4 This is a schematic diagram of the internal structure of the fixing rod of the present invention; Figure 5 This is a schematic diagram of the magnetic column and magnetic bead structure of the present invention; Figure 6 This is a schematic diagram of the guide plate structure of the present invention; Figure 7 This is a schematic diagram of the guide ring and locking block structure of the present invention; Figure 8 This is a schematic diagram of the rubber ring structure of the present invention; Figure 9 This is a schematic diagram of the limiting post and arc-shaped strip structure of the present invention; Figure 10 This is a schematic diagram of the flow guide tube structure of the present invention.

[0017] In the diagram: 1. Drill bit body; 2. Turbine motor; 3. Guide device; 4. Drill rod; 5. Cutting blade; 6. Drill teeth; 7. Chip removal groove; 8. Through hole; 9. Flow chamber; 10. Spray nozzle; 11. Flow guide tube; 12. Threaded strip; 13. Fixing rod; 14. Electromagnet; 15. Spring; 16. Magnetic column; 17. Elastic rod; 18. Magnetic block; 19. Limiting rod; 20. Slide groove; 21. Movable groove 22. Sealing ring; 23. Limiting plate; 24. Telescopic rod; 25. Universal shaft; 26. Limiting ring; 27. Magnetic bead; 28. Limiting block; 29. ​​Magnetic strip; 30. Ball bearing; 31. Sleeve; 32. Sliding rod; 33. Universal ball; 34. Deflector; 35. Guide ring; 36. Locking block; 37. Guide strip; 38. Slide plate; 39. Limiting post; 40. Arc strip; 41. Rubber ring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-10This invention provides a technical solution: an energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit, comprising a drill bit body 1, a turbine motor 2 fixedly installed at one end of the drill bit body 1, a guide device 3 disposed at the end of the turbine motor 2 for controlling the drilling direction of the drill bit body 1 (both the turbine motor 2 and the guide device 3 are existing known structures, so this invention will not elaborate further), a drill rod 4 fixedly installed at one end of the guide device 3, and a plurality of cutter wings 5 ​​fixedly installed on the drill bit body 1, the cutter wings 5 ​​being arranged in a circle, and each adjacent cutter wing 5 having a space between it. The drill bit is equipped with a chip removal groove 7. Several drill teeth 6 are fixedly installed on each cutter blade 5. Through holes 8 are coaxially arranged inside both the drill bit body 1 and the turbine motor 2. A flow guide chamber 9 communicating with the through holes 8 is located inside the drill bit body 1. A nozzle 10 communicating with the flow guide chamber 9 is located in each chip removal groove 7. A flow guide cylinder 11 is fixedly installed inside each nozzle 10. The inner wall of each flow guide cylinder 11 is conical, and threaded strips 12 are fixedly installed on its inner wall. The turbine motor 2 uses the kinetic energy of the drilling fluid to drive the drill bit body 1 to rotate and drill. (See attached diagram.) Figure 1 , 2 As shown, the cutter blade 5 is arc-shaped. During the drilling process, the arc-shaped blade can gradually contact the drill teeth 6, avoiding stress concentration caused by right-angle cutting. This reduces the wear of the drill teeth 6 and creates a smooth rounded corner in the borehole, achieving a certain chamfering effect. Meanwhile, the drilling fluid passes through the through hole 8 and the guide chamber 9 and is ejected from the nozzle 10. Since the inner wall of the guide cylinder 11 is set in a conical shape, it plays a certain role in pressurizing. Furthermore, when the drilling fluid passes through the threaded bar 12, its rotational kinetic energy is increased, further increasing the impact force of the drilling fluid. This facilitates the timely discharge of rock debris and reduces the wear on the drill bit body 1.

[0020] A fixed rod 13 is coaxially fixedly installed inside the guide device 3. One end of the fixed rod 13 passes through the through hole 8 and is inserted into the guide chamber 9. Several movable grooves 21 are provided on the fixed rod 13. Each movable groove 21 is provided with a limit rod 19. A sealing ring 22 for preventing drilling fluid from entering the fixed rod 13 is fixedly installed in the movable groove 21. The sealing ring 22 is made of elastic material and is sleeved on the corresponding limit rod 19. The end of each limit rod 19 is arc-shaped. A sliding groove 20 for limiting the end of the limit rod 19 is provided on the inner wall of the drill bit body 1. The sliding groove 20 is annular. A limit plate 23 is provided inside the fixed rod 13. One end of each limit rod 19 is fixedly connected to the limit plate 23, and the other end abuts against the inner wall of the drill bit body 1. A telescopic rod 24 is fixedly installed on one side, and a universal joint 25 is fixedly installed on the telescopic rod 24. A limiting ring 26 for limiting the universal joint 25 is fixedly installed inside the fixed rod 13. A magnetic bead 27 is fixedly installed at the end of the telescopic rod 24. An electromagnet 14 that generates magnetic force when energized is fixedly installed in the fixed rod 13. One end of the electromagnet 14 is connected to a magnetic column 16 for generating magnetic attraction to the magnetic bead 27 through a spring 15. The magnetic column 16 and the electromagnet 14 are magnetically repelled. Several limiting blocks 28 that are limited by the magnetic bead 27 are slidably installed on the fixed rod 13. The limiting blocks 28 are arranged in a circle. Magnetic strips 29 are fixedly installed on both sides of each limiting block 28. Adjacent magnetic strips 29 are magnetically attracted. Roller balls 30 for reducing friction are also provided on the outer side of each limiting block 28. Figure 3 , 4 As shown, the diameter of the movable groove 21 is larger than the diameter of the limiting rod 19. The limiting rod 19 is limited by the sliding groove 20, ensuring that the limiting rod 19 and the limiting disc 23 always move coaxially with the drill bit body 1. The sealing ring 22 will deform accordingly according to the movement of the limiting rod 19, maintaining a good sealing effect. When the drill bit body 1 needs to be offset, the guide device 3 will control the offset direction of the drill bit body 1. At the same time, the electromagnet 14 is not energized, the magnetic column 16 remains in its initial state and does not move, and the magnetic bead 27 is pulled back by the elastic force of the telescopic rod 24. When the drill bit body 1 offsets, it will no longer be in contact with the guide device 3 and the fixing rod 13. Coaxially, the fixed rod 13 will shift inside the drill bit body 1. Simultaneously, the drill bit body 1 will drive the limiting rod 19 and the limiting plate 23 to shift synchronously with the fixed rod 13. Through the limiting ring 26 limiting the universal joint 25, the end of the telescopic rod 24 will drive the magnetic bead 27 to move in the opposite direction to the movement of the limiting plate 23. Since the telescopic rod 24 is in the retracted state at this time, the magnetic bead 27 does not contact the limiting block 28. If the drill bit body 1 needs to perform straight drilling, the guide device 3 will control the electromagnet 14 to be energized. Since the magnetic column 16 and the electromagnet 14 are magnetically repelled, the magnetic column 16 will overcome the elastic force of the spring 15 and slide towards the end of the fixed rod 13, as shown in the attached figure. Figure 5As shown, when the magnetic column 16 is about to contact the limiting block 28, the magnetic repulsion between the magnetic column 16 and the electromagnet 14 and the elastic force of the spring 15 reach equilibrium, and the magnetic column 16 will stop moving. At this time, the magnetic bead 27 will be attracted by the magnetic attraction of the magnetic column 16, causing the telescopic rod 24 to extend and the magnetic bead 27 to enter between the limiting blocks 28. If the drill bit body 1 shifts due to the rock strata, the telescopic rod 24 will tilt inside the fixed rod 13, and the magnetic bead 27 will push the limiting block 28 to move outward from the fixed rod 13, and cause the outer wall ball 30 of the limiting block 28 to abut against the inner wall of the drill bit body 1, providing resistance to prevent the drill bit body 1 from shifting too much. The greater the shift angle of the drill bit body 1, the greater the resistance, effectively preventing the drill bit body 1 from shifting too much. No matter which direction the drill bit body 1 shifts, there will be a corresponding limiting block 28 abutting against its inner wall to provide resistance.

[0021] Several sets of elastic rods 17 are slidably mounted on the fixed rod 13. Each set of elastic rods 17 consists of two elastic rods 17, and the two corresponding elastic rods 17 are symmetrically arranged. The end of each elastic rod 17 is set in an arc shape to reduce friction. A magnetic block 18 is fixedly mounted on one end of each elastic rod 17. The end of each magnetic block 18 is set in an arc shape and is located on the movement trajectory of the magnetic column 16. The end of the magnetic column 16 is also set in an arc shape. During the sliding process, the arc-shaped surface of the end of the magnetic column 16 will successively interact with the magnetic column 16. The elastic rod 17 contacts the arc-shaped surface of the magnetic block 18 at its end. The elastic rod 17 will move along the arc-shaped surface of the end of the magnetic column 16 and extend outward toward the fixed rod 13, abutting against the inner wall of the drill bit body 1. This can effectively reduce the vibration of the drill bit body 1 during drilling and the continuous relative movement between it and the fixed rod 13. At the same time, it provides a certain support force to the fixed rod 13, preventing the fixed rod 13 from deforming due to excessive offset force of the drill bit body 1, and can provide a certain resistance to the offset of the drill bit body 1.

[0022] A universal ball 33 is movably mounted on the end of the fixed rod 13. A guide plate 34 for controlling the flow direction of drilling fluid is rotatably mounted on the universal ball 33. A sleeve 31 is provided between the universal ball 33 and the limiting plate 23. A universal shaft 25 is also fixedly mounted on the sleeve 31. A limiting ring 26 corresponds one-to-one with the universal shaft 25. Sliding rods 32 are slidably mounted on both ends of the sleeve 31. The two sliding rods 32 are movably connected to the limiting plate 23 and the universal ball 33, respectively. A fixedly mounted universal shaft 25 is installed on the outer wall of the end of the fixed rod 13. There is a guide ring 35. On both sides of the inner wall of the guide plate 34, there are rotatably mounted locking blocks 36 that cooperate with the guide ring 35. On both sides of the guide plate 34, there are sliding plates 38. On both sides of the guide plate 34, there are several guide strips 37 for limiting the sliding plates 38. Each sliding plate 38 has a limiting post 39 fixedly mounted at its upper end. On the inner wall of the guide chamber 9, there are several arc-shaped strips 40 for limiting the limiting posts 39. Each arc-shaped strip 40 corresponds one-to-one with the blade 5. Each slide plate 38 is fixedly equipped with a rubber ring 41, and each rubber ring 41 is provided with holes for drilling fluid to pass through. The elasticity of the rubber ring 41 is less than the impact force of the drilling fluid. When the drill bit body 1 drives the limiting rod 19 to deviate from the limiting plate 23, the limiting plate 23 will drive the corresponding slide rod 32 end to move together. The slide rod 32 is limited by the sleeve 31 and will extend. At the same time, the universal joint 25 is limited by the limiting ring 26. The sleeve 31 will drive the two The side slide rods 32 rotate together, with the two slide rods 32 rotating in opposite directions. The other slide rod 32 will drive the universal ball 33 to rotate in the opposite direction to the limiting plate 23. During the rotation of the universal ball 33, the locking block 36 on the guide plate 34 will be subjected to rotational thrust and slide along the guide ring 35, so that the guide plate 34 always remains perpendicular to the rotation direction of the universal ball 33, and the rotation direction of the guide plate 34 is always the same as the rotation direction of the universal ball 33 and the drill bit body 1, as shown in the attached figure. Figure 9 As shown, after the guide plate 34 rotates, most of the drilling fluid entering the guide chamber 9 will flow along the inclined surface of the guide plate 34 to the offset side of the drill bit body 1, increasing the drilling fluid on the offset side of the drill bit body 1 and improving the cuttings removal efficiency. At the same time, the guide strip 37 limits the sliding plate 38, ensuring that the sliding plate 38 remains perpendicular to the guide plate 34. In the initial state, as shown in the attached diagram... Figure 3As shown, the limiting post 39 at the end of the slide plate 38 is not on the movement trajectory of the arc-shaped strip 40. The slide plate 38, pushed by the drilling fluid, remains at the initial end of the guide strip 37. When the guide plate 34 rotates, the limiting post 39 at the end of the slide plate 38, which is offset to one side of the drill bit body 1, will move to the movement trajectory of the arc-shaped strip 40. As the drill bit body 1 continues to rotate, after the arc-shaped strip 40 contacts the limiting post 39, it will push the slide plate 38 to slide along the guide strip 37. During the sliding process, the direction of movement of the slide plate 38 is opposite to the direction of drilling fluid flow. The rubber ring 41 on the slide plate 38 will remain open, not affecting the drilling fluid flow. As the drilling fluid passes through, after the arc-shaped strip 40 passes the limiting post 39, the sliding plate 38 will be pushed by the drilling fluid and move in the opposite direction along the guide strip 37 to reset. At this time, the rubber ring 41 will be subject to water flow resistance, and the holes on it will continuously shrink, preventing the drilling fluid from passing through. It will also be pushed by the drilling fluid, rapidly pushing the drilling fluid towards the nozzle 10, increasing the drilling fluid pressure in the corresponding nozzle 10. As the arc-shaped strip 40 continuously contacts the limiting post 39, it will continuously form pulse-like water flow impacting the drill bit body 1 to one side, making it less likely for debris to accumulate on the side of the drill bit body 1, preventing excessive debris accumulation from increasing drill bit wear and energy consumption, and effectively playing a role in energy saving.

[0023] Specifically, the turbine motor 2 first uses the kinetic energy of the drilling fluid to drive the drill bit body 1 to rotate and drill. During the drilling process, the cutter blades 5 drive the drill teeth 6 to make gradual contact, avoiding stress concentration caused by right-angle cutting. This reduces wear on the drill teeth 6 and creates a smooth, rounded corner in the borehole, achieving a certain chamfering effect. At the same time, the drilling fluid passes through the through hole 8 and the guide chamber 9 and is ejected from the nozzle 10, facilitating the timely removal of rock debris and reducing wear on the drill bit body 1. When the drill bit body 1 needs to be deflected, the guide device 3 controls the drill bit body 1 to deflect. The direction of the offset is such that the electromagnet 14 is not energized, the magnetic column 16 remains in its initial state and does not move, and the magnetic bead 27 is pulled back by the elastic force of the telescopic rod 24. When the drill bit body 1 is offset, it will no longer be coaxial with the guide device 3 and the fixing rod 13. The fixing rod 13 will be offset inside the drill bit body 1. At the same time, the drill bit body 1 will drive the limiting rod 19 and the limiting plate 23 to be offset synchronously with the fixing rod 13. The end of the telescopic rod 24 will drive the magnetic bead 27 to move in the opposite direction to the movement of the limiting plate 23. At this time, the magnetic bead 27 does not contact the limiting block 28. If the drill bit body 1 needs to enter... During straight drilling, the guide device 3 energizes the electromagnet 14, causing the magnetic column 16 to slide against the spring force of the spring 15 towards the end of the fixed rod 13. The magnetic bead 27 is attracted by the magnetic force of the magnetic column 16, causing the telescopic rod 24 to extend. The magnetic bead 27 then enters between the limiting blocks 28. If the drill bit body 1 shifts due to rock formations, the telescopic rod 24 will tilt within the fixed rod 13, and the magnetic bead 27 will push the limiting block 28 outward from the fixed rod 13. This causes the outer wall ball 30 of the limiting block 28 to abut against the inner wall of the drill bit body 1, providing resistance to prevent the drill bit body 1 from shifting too much. During the sliding process, the arc-shaped surface of the end of the magnetic column 16 will sequentially contact the arc-shaped surface of the magnetic block 18 at the end of each elastic rod 17. The elastic rod 17 will move along the arc-shaped surface at the end of the magnetic column 16 and extend outward toward the fixed rod 13, abutting against the inner wall of the drill bit body 1. This can effectively reduce the vibration of the drill bit body 1 during drilling and the continuous relative movement between it and the fixed rod 13. At the same time, it provides a certain support force to the fixed rod 13, preventing the fixed rod 13 from deforming due to excessive offset force of the drill bit body 1, and can also provide a certain resistance to the offset of the drill bit body 1.When the drill bit body 1 causes the limiting rod 19 to deviate from the limiting plate 23, the limiting plate 23 will cause the corresponding slide rod 32 end to move together. The sleeve 31 will cause the two slide rods 32 on both sides to rotate together, and the two slide rods 32 rotate in opposite directions. The other slide rod 32 will cause the universal ball 33 to rotate in the opposite direction of the limiting plate 23. During the rotation of the universal ball 33, the locking block 36 on the guide plate 34 will be subjected to rotational thrust and slide along the guide ring 35, so that the guide plate 34 always remains in a constant position. The guide plate 34 rotates perpendicular to the direction of rotation of the universal ball 33, and its rotation direction is always the same as that of the universal ball 33 and the drill bit body 1. After the guide plate 34 rotates, most of the drilling fluid entering the guide chamber 9 will flow along the inclined surface of the guide plate 34 to the offset side of the drill bit body 1, increasing the drilling fluid on the offset side of the drill bit body 1 and improving the cuttings removal efficiency. When the guide plate 34 rotates, the limiting post 39 at the end of the sliding plate 38 on the offset side of the drill bit body 1 will move to the motion track of the arc-shaped strip 40. As the drill bit body 1 rotates continuously, the arc-shaped bar 40 contacts the limiting post 39, pushing the slide plate 38 to slide along the guide bar 37. During this process, the slide plate 38 moves in the opposite direction to the drilling fluid flow. The rubber ring 41 on the slide plate 38 keeps its opening open, not affecting the passage of drilling fluid. After the arc-shaped bar 40 passes the limiting post 39, the slide plate 38 is pushed by the drilling fluid and moves in the opposite direction along the guide bar 37 to reset. At this time, the rubber ring 41 is subjected to water flow resistance, and its opening continuously shrinks, preventing the drilling fluid from passing through. It is also pushed by the drilling fluid, rapidly pushing the drilling fluid towards the nozzle 10, increasing the drilling fluid pressure in the corresponding nozzle 10. Furthermore, as the arc-shaped bar 40 continuously contacts the limiting post 39, it continuously forms pulsed water flow impacts the drill bit body 1 to one side, preventing the accumulation of cuttings on that side and thus preventing excessive cuttings buildup, which increases drill bit wear and energy consumption, effectively achieving energy saving.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit, comprising a drill bit body (1), a turbine motor (2) fixedly installed at one end of the drill bit body (1), a guide device (3) disposed at the end of the turbine motor (2) for controlling the drilling direction of the drill bit body (1), and a drill rod (4) fixedly installed at one end of the guide device (3), characterized in that: The drill bit body (1) is fixedly equipped with several blades (5), which are arranged in a circle. A chip removal groove (7) is provided between two adjacent blades (5). Several drill teeth (6) are fixedly installed on each blade (5). A through hole (8) is provided coaxially in both the drill bit body (1) and the turbine motor (2). A flow guide chamber (9) connected to the through hole (8) is provided in the drill bit body (1). A spray hole (10) connected to the flow guide chamber (9) is provided in each chip removal groove (7).

2. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 1, characterized in that: A fixed rod (13) is coaxially fixedly installed inside the guide device (3). One end of the fixed rod (13) passes through the through hole (8) and is inserted into the guide chamber (9). Several movable slots (21) are provided on the fixed rod (13). Each movable slot (21) is provided with a limit rod (19). A limit plate (23) is provided inside the fixed rod (13). One end of each limit rod (19) is fixedly connected to the limit plate (23), and the other end abuts against the inner wall of the drill bit body (1). A telescopic rod (24) is fixedly installed on one side of the limit plate (23). A universal joint (25) is fixedly installed on the telescopic rod (24). A tool for... A limiting ring (26) limits the universal joint (25). A magnetic bead (27) is fixedly installed at the end of the telescopic rod (24). An electromagnet (14) that generates magnetic force when energized is fixedly installed in the fixed rod (13). One end of the electromagnet (14) is connected to a magnetic column (16) that generates magnetic attraction force to the magnetic bead (27) through a spring (15). The magnetic column (16) and the electromagnet (14) are magnetically repelled. Several limiting blocks (28) that are limited by the magnetic bead (27) are slidably installed on the fixed rod (13). The limiting blocks (28) are arranged in a circle, and magnetic strips (29) are fixedly installed on both sides of each limiting block (28). Two adjacent magnetic strips (29) are magnetically attracted to each other.

3. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 2, characterized in that: A universal ball (33) is movably installed at the end of the fixed rod (13). A guide plate (34) for controlling the flow direction of drilling fluid is rotatably installed on the universal ball (33). A sleeve (31) is provided between the universal ball (33) and the limiting plate (23). A universal shaft (25) is also fixedly installed on the sleeve (31). The limiting ring (26) corresponds one-to-one with the universal shaft (25). Sliding rods (32) are slidably installed at both ends of the sleeve (31). The two sliding rods (32) are movably connected to the limiting plate (23) and the universal ball (33) respectively.

4. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 3, characterized in that: A guide ring (35) is fixedly installed on the outer wall of the end of the fixed rod (13), and a locking block (36) that cooperates with the guide ring (35) is rotatably installed on the inner walls of both sides of the guide plate (34).

5. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 4, characterized in that: The guide plate (34) is slidably mounted on both sides of the guide plate (34), and several guide strips (37) for limiting the slide plate (38) are fixedly mounted on both sides of the guide plate (34). Each slide plate (38) is fixedly mounted on the upper end of the guide plate (38), and several arc-shaped strips (40) for limiting the limit post (39) are fixedly mounted on the inner wall of the guide chamber (9). The arc-shaped strips (40) correspond one-to-one with the blade (5).

6. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 5, characterized in that: Each of the slide plates (38) is fixedly equipped with a rubber ring (41), and each of the rubber rings (41) is provided with holes for drilling fluid to pass through. The elasticity of the rubber ring (41) itself is less than the impact force of the drilling fluid.

7. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 6, characterized in that: Several sets of elastic rods (17) are slidably installed on the fixed rod (13). Each set of elastic rods (17) consists of two elastic rods (17), and the two corresponding elastic rods (17) are symmetrically arranged. A magnetic block (18) is fixedly installed at one end of each elastic rod (17). One end of each magnetic block (18) is arc-shaped and located on the movement trajectory of the magnetic column (16). One end of the magnetic column (16) is also arc-shaped.

8. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 7, characterized in that: Each of the limiting rods (19) is provided with an arc-shaped end. The inner wall of the drill bit body (1) is provided with a groove (20) for limiting the end of the limiting rod (19). The groove (20) is arranged in a ring.

9. The energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 8, characterized in that: The movable groove (21) is fixedly installed with a sealing ring (22) to prevent drilling fluid from entering the fixed rod (13). The sealing ring (22) is made of elastic material and is sleeved on the corresponding limiting rod (19).

10. An energy-saving mining arc-shaped ultra-wear-resistant chamfered drill bit according to claim 9, characterized in that: Each of the nozzles (10) is fixedly installed with a guide tube (11), the inner wall of each guide tube (11) is set in a conical shape, and a threaded strip (12) is fixedly installed on its inner wall. The end of each elastic rod (17) is set in an arc shape to reduce friction, and each limiting block (28) is also provided with a ball (30) to reduce friction on its outer side.

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