Perforating device for superconducting conductor armor

Abstract

The invention provides a superconducting conductor armor perforating device which comprises a drilling assembly used for drilling the surface of an armor and comprising a center shaft and a drill bit arranged at the bottom of the center shaft; the clamping assembly is arranged on the outer side of the drilling assembly in a sleeving mode and used for clamping the armor so that the drilling assembly can be suspended above the armor; the driving assembly is arranged above the drilling assembly and used for driving the center shaft to rotate and move up and down; wherein the clamping assembly comprises a clamping body arranged on the outer side of the center shaft in a sleeving mode and a profile modeling face arranged on the top of the clamping body, connecting rods are arranged on the two sides of the center shaft, idler wheels matched with the profile modeling face are arranged on the connecting rods, and two symmetrically-arranged cutting edge parts are arranged at the bottom of the drill bit. The perforating device solves the problem that in the prior art, a superconducting conductor armor perforating device which is portable, easy to operate, capable of being accurately controlled and capable of avoiding damage to internal superconducting materials does not exist.

Description

Technical Field

[0001] This invention relates to the field of superconducting conductor armor processing technology, and in particular to a device for drilling holes in superconducting conductor armor. Background Technology

[0002] Superconducting power transmission technology, as one of the most revolutionary cutting-edge technologies in the power industry today, enables high-capacity power transmission at low voltage levels due to its near-zero resistance, providing an innovative solution to the power supply problems in high-density urban areas. High-temperature superconducting cables, in particular, utilize the superconducting properties of superconducting materials at critical temperatures, making the resistance of the power transmission medium approach zero, thereby significantly reducing power transmission losses. With the development of large-scale scientific projects such as controlled nuclear fusion devices and large accelerators, the demand for strong magnetic fields is increasing. Cable-in-tube (CICC) conductors, due to their ability to carry ultra-high currents and generate strong magnetic fields, have become the preferred structural form for large-size, high-current, and strong-magnetic-field superconducting magnet coils. These applications place extreme demands on the stability and reliability of superconducting magnets, among which efficient cooling is a key technology to ensure the maintenance of the superconducting state and prevent quenching loss.

[0003] In the actual manufacturing and application of superconducting cables, to ensure that the superconducting material is kept in an extremely low-temperature environment (such as liquid nitrogen or liquid helium temperature), its structure typically includes an outer armor, an inner superconducting material, and cooling channel supports. The armor, as the main load-bearing component, not only provides mechanical protection but also has internal cooling channels to guide the flow of cooling media (such as liquid nitrogen or liquid helium) to remove heat. For long integrated coil windings, to meet their stringent cooling performance requirements, specific cooling pipe connection holes are often required in the conductor armor. This type of hole structure effectively shortens the equivalent length of the forced cooling channel, significantly reduces the flow resistance of the cooling medium, and improves its overall distribution and flow within the channel, thereby improving the efficiency and uniformity of the cooling system and ultimately ensuring the thermal stability and operational reliability of the coil under high magnetic field and high current conditions. The superconducting material and cooling support structure are usually wound in a spiral shape and inserted into the inner hole of the armor. For structural stability and mechanical performance considerations, the armor is usually designed with a circular cross-section and made of high-strength and high-toughness materials.

[0004] However, achieving high-precision, high-quality cooling hole machining on the armor faces severe challenges. First, the lack of effective dedicated support and positioning during drilling makes it difficult to guarantee hole position accuracy and edge quality, and dimensional errors are hard to control. Traditional drilling methods often use handheld electric drills, which are generally only suitable for machining circular cooling holes and are highly susceptible to human error, making it difficult to accurately control the drilling depth. Second, and more critically, improper control of vibrations, stress, or penetration during drilling can easily damage the superconducting material inside the armor. Superconducting tapes are typically made of hard and brittle superconducting ceramic materials, and their superconducting properties (critical current) are extremely sensitive to mechanical stress or microcracks. Once damaged during machining, the damaged area will generate hot spots due to increased local resistance when energized, potentially triggering a chain reaction of quench failure, causing the entire superconducting magnet to fail, severely jeopardizing the stability and safety of the coil operation. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a superconducting conductor armor drilling device, which aims to solve the problem that there is a lack of a portable, easy-to-operate, and precisely controllable superconducting conductor armor drilling device in the prior art that avoids damage to the internal superconducting material.

[0006] A superconducting conductor armor drilling device according to an embodiment of the present invention is characterized in that it comprises: A drilling assembly for drilling holes in the surface of armor, the drilling assembly including a central shaft and a drill bit disposed at the bottom of the central shaft; A clamping assembly is sleeved on the outside of the drilling assembly to clamp the armor so that the drilling assembly is suspended above the armor; A drive assembly, disposed above the drilling assembly, is used to drive the central shaft to rotate and move up and down. The clamping assembly includes a clamping body sleeved on the outside of the central shaft and a contour surface on the top of the clamping body. Connecting rods are provided on both sides of the central shaft, and rollers adapted to the contour surface are provided on the connecting rods. Two symmetrically arranged cutting edges are provided at the bottom of the drill bit.

[0007] In addition, the superconducting conductor armor drilling device according to the above embodiments of the present invention may also have the following additional technical features: Furthermore, the clamping assembly also includes a pressing member sleeved on the outer side of the bottom of the clamping body, and rocker arms disposed on both sides of the bottom of the clamping body. The bottom of the clamping body extends downward with two symmetrically arranged protrusions, which enclose a receiving space for accommodating the armor. The bottom of one rocker arm is sleeved on both sides of the protrusion on the same side and rotatably connected to the protrusion. Rotating the pressing member drives the bottom of the two rocker arms to approach and clamp the armor.

[0008] Furthermore, the superconducting conductor armor drilling device also includes a feeding assembly, which includes a bushing nested in an annular groove on the outer side of the top of the clamping body, a feeding sleeve sleeved on the clamping body, and a torque sleeve sleeved on the outer side of the feeding sleeve. Roller-torsion shafts are provided on both sides of the outer side of the torque sleeve, passing through the torque sleeve and the feeding sleeve and connecting to the bushing. The feeding sleeve is provided with a spiral guide groove adapted to the roller-torsion shaft. A pressure block extends downward from the inner side of the top of the feeding sleeve for squeezing the drilling assembly. The outer side of the top of the feeding sleeve is connected to the drive assembly for transmission, so that the drive assembly transmits the rotational tendency to the feeding sleeve.

[0009] Furthermore, the feeding assembly also includes guide pins disposed on both sides of the clamping body, and the feeding sleeve is provided with a vertical guide groove adapted to the guide pins.

[0010] Furthermore, a circular plate is provided on the outer side of the center shaft, the connecting rod is provided on the side of the circular plate, the pressure block is sleeved on the outer side of the top of the center shaft, and an elastic element sleeved on the center shaft is provided between the pressure block and the circular plate.

[0011] Furthermore, a limiting shell is also fitted on the outer side of the top of the central shaft and fixedly connected to the circular plate. A thrust bearing is provided between the elastic element and the pressure block and fitted on the central shaft. The pressure block, the thrust bearing and the elastic element are all located inside the limiting shell, and the outer diameter of the thrust bearing is smaller than the inner diameter of the top of the limiting shell.

[0012] Furthermore, the drive assembly includes a drive component, a drive shaft connected to the drive component, a bearing disposed on the top of the drive shaft, and a transmission component sleeved on the outside of the bearing, wherein the transmission component is fixedly connected to the top of the feed sleeve.

[0013] Furthermore, the extrusion member includes an elliptical plate and a drive rod connected to the elliptical plate.

[0014] Furthermore, the bottom of the extrusion body is provided with two symmetrically arranged locking gauges, which are located on the side adjacent to the rocker arm, and the bottom of the locking gauges is provided with locking grooves.

[0015] Furthermore, the inner side of the boss is provided with a sliding groove, and a pressing block is provided in the sliding groove. The side of the pressing block abuts against the bottom of the rocker arm. A clamping screw is provided on the side of the boss. An auxiliary plate extends outward from the top of the pressing block. The auxiliary plate is located between the end of the clamping screw and the boss.

[0016] This invention uses a clamping assembly to fix the drilling device onto the armor to be drilled, and assists in positioning the drilling assembly so that the central shaft and drill bit are aligned with the drilling area. A drive assembly drives the central shaft to rotate and move it downwards, causing the drill bit to rotate and move downwards simultaneously to drill holes in the armor surface. As the drill bit continues to move downwards, the rollers on the connecting rods on both sides of the central shaft abut against the contoured surface on the clamping body, causing the rollers to move along the contoured surface. This allows the central shaft to move up and down in this area. The drilling and cutting of the armor is performed by a centrally symmetrical cutting edge, rather than a continuously designed cutting edge. Through the cooperation of the cutting edge and the contoured surface, the bottom contour of the hole cut near the superconducting conductor on the armor conforms to the surface of the superconducting conductor, rather than being a circular contour on the same plane. This prevents damage to the superconducting conductor inside the armor during drilling. Therefore, this invention solves the problem in the prior art of lacking a portable, easy-to-operate, and precisely controllable device for drilling holes in superconducting conductor armor that avoids damage to the internal superconducting material. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a superconducting conductor armor drilling device in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the driving component in one embodiment of the present invention; Figure 3 This is a cross-sectional view of the hidden drive assembly of the superconducting conductor armor drilling device in one embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the central axis in one embodiment of the present invention; Figure 5 for Figure 4 A cross-sectional schematic diagram; Figure 6 This is an assembly diagram of the clamping assembly and the drilling assembly in one embodiment of the present invention; Figure 7 This is a schematic diagram of the clamping assembly in one embodiment of the present invention; Figure 8 This is a schematic diagram of the assembly of the feed assembly with the clamping assembly after the hidden torque sleeve is installed in one embodiment of the present invention. Figure 9 This is an exploded view of the feed assembly in one embodiment of the present invention;

[0018] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0019] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be thorough and complete.

[0020] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figures 1 to 9 The image shows a drilling device for a superconducting conductor armor according to an embodiment of the present invention, comprising: a drilling assembly 10 for drilling holes in the surface of the armor, the drilling assembly 10 including a central shaft 11 and a drill bit 12 disposed at the bottom of the central shaft 11; a clamping assembly 20 sleeved on the outside of the drilling assembly 10 for clamping the armor so that the drilling assembly 10 is suspended above the armor; and a driving assembly 30 disposed above the drilling assembly 10 for driving the central shaft 11 to rotate and move up and down. The clamping assembly 20 includes a clamping body 21 sleeved on the outside of the central shaft 11 and a contour surface 22 set on the top of the clamping body 21. Connecting rods 13 are provided on both sides of the central shaft 11. Rollers 14 adapted to the contour surface 22 are provided on the connecting rods 13. Two symmetrically arranged cutting edges 15 are provided at the bottom of the drill bit 12.

[0023] Understandably, by setting the clamping assembly 20, the drilling device is fixed to the armor to be drilled, and the drilling assembly 10 is positioned to align the central shaft 11 and the drill bit 12 with the drilling area. The driving assembly 30 drives the central shaft 11 to rotate and move it downward, so that the central shaft 11 drives the drill bit 12 to rotate and move downward at the same time to drill holes in the armor surface. As the drill bit 12 continues to move downward to drill holes, the rollers 14 on the connecting rods 13 on both sides of the central shaft 11 and the imitation rollers on the clamping body 21... The profile 22 abuts against the surface, causing the roller 14 to move along the profile 22. This, in turn, causes the central shaft 11 to move up and down in this area. Because the centrally symmetrical cutting edge 15 is used to drill and cut the armor, rather than a continuously designed cutting edge, the bottom contour of the hole cut near the superconducting conductor on the armor conforms to the surface of the superconducting conductor, rather than being a circular contour on the same plane. This prevents damage to the superconducting conductor inside the armor during drilling. Therefore, this invention solves the problem of the lack of a portable, easy-to-operate, and precisely controllable superconducting conductor armor drilling device that avoids damage to the internal superconducting material.

[0024] Specifically, the clamping assembly 20 also includes a pressing member 23 sleeved on the outer side of the bottom of the clamping body 21, and rocker arms 24 disposed on both sides of the bottom of the clamping body 21. Two symmetrically arranged protrusions 211 extend downward from the bottom of the clamping body 21, forming a receiving space for the armor. The bottom of one rocker arm 24 is sleeved on both sides of the protrusion 211 on the same side and rotatably connected to it. Rotating the pressing member 23 drives the bottom of the two rocker arms 24 closer to the clamping armor. In practical implementation, the position of the clamping assembly 20 is adjusted so that the axis of the drilling assembly 10 is aligned with the center of the preset drilling area, and the two protrusions 211 are placed on both sides of the armor so that the armor is located within the receiving space. Then, the pressing member 23 presses the top of the rocker arms 24 so that the bottom of the two rocker arms 24 approaches each other towards the side of the clamping armor, thereby fixing the clamping assembly 20 onto the armor and achieving a fixed positioning effect before drilling. This ensures the accuracy of the hole position and the quality of the hole edge after drilling. Furthermore, by fixing the drilling status to the armor, it avoids the problems of shaking and insufficient accuracy when drilling with a handheld electric drill.

[0025] Additionally, the superconducting conductor armor drilling device also includes a feeding assembly 40. The feeding assembly 40 includes a bushing 41 nested in an annular groove 212 on the outer side of the top of the clamping body 21, a feeding sleeve 42 sleeved on the clamping body 21, and a torque sleeve 43 sleeved on the outer side of the feeding sleeve 42. Roller-torsion shafts 44 are provided on both sides of the outer side of the torque sleeve 43, passing through the torque sleeve 43 and the feeding sleeve 42 and connecting to the bushing 41. The feeding sleeve 42 is provided with a spiral guide groove 421 adapted to the roller-torsion shaft 44. A pressure block 422 extends downward from the inner side of the top of the feeding sleeve 42 for pressing the drilling assembly 10. The outer side of the top of the feeding sleeve 42 is connected to the drive assembly 30 for transmission, so that the drive assembly 30 transmits the rotational tendency to the feeding sleeve 42. In practical implementation, when the drive assembly 30 drives the central shaft 11 to rotate, it transmits the rotational trend to the feed sleeve 42, causing the feed sleeve 42 to rotate as well. Since the feed sleeve 42 has a spiral guide groove 421, which cooperates with the rolling torsion shaft 44, and one end of the rolling torsion shaft 44 is connected to the torque sleeve 43 while the other end is fixed to the bushing 41, the spiral guide groove 421 and the rolling torsion shaft 44 interact, causing the rolling torsion shaft 44 to move along the spiral guide groove 421. This causes the feed sleeve 42 to move downwards. The feed sleeve 42 has a pressure block 422, which continuously presses downwards against the drilling assembly 10 as the feed sleeve 42 moves downwards. This achieves the function of drilling the armor by rotating and moving downwards simultaneously. Furthermore, through the configuration of this assembly, a single power source can achieve both drilling and movement of the drilling assembly 10, eliminating the need for a separate power source and significantly reducing costs and the number of parts. This makes the drilling device smaller and more portable.

[0026] Specifically, the feed assembly 40 also includes guide pins 45 disposed on both sides of the clamping body 21, and the feed sleeve 42 is provided with vertical guide grooves 423 adapted to the guide pins 45. In specific implementation, the feed sleeve 42 is also provided with vertical guide grooves 423 adapted to the guide pins 45 on both sides of the clamping body 21, so that when the spiral guide groove 421 interacts with the rolling torsion shaft 44, the rolling torsion shaft 44 moves along the spiral guide groove 421, which will drive the bushing 41 and the torsion sleeve 43 to rotate. However, with the cooperation of the guide pins 45 and the vertical guide grooves 423, the feed sleeve 42 will not rotate, but will move along the length direction of the vertical guide groove 423. This makes the force actually exerted by the pressure block 422 on the central shaft 11 a stable downward force, rather than a rotational downward force, thereby making the movement of the drilling assembly 10 more stable, reducing the shaking effect of other components, and thus ensuring the accuracy and stability of drilling.

[0027] Additionally, a circular plate 16 is provided on the outer side of the center shaft 11, a connecting rod 13 is provided on the side of the circular plate 16, and a pressure block 422 is sleeved on the outer side of the top of the center shaft 11. An elastic element 17 sleeved on the center shaft 11 is provided between the pressure block 422 and the circular plate 16. In specific implementation, the pressure block 422 applies pressure to the circular plate 16 through the elastic element 17 to drive the center shaft 11 to move downward, thereby driving the drill bit 12 to move downward to drill holes in the armor. Through the setting of the elastic element 17, the roller 14 rolls on the contour surface 22. When the center shaft 11 moves up and down, the elastic connection of the elastic element 17 can be squeezed to allow sufficient space for the center shaft 11 to move upward, thereby ensuring that the drilling device can perform conformal drilling at the contact point between the armor and the superconducting conductor, ensuring the accuracy and effect of the drilling.

[0028] Specifically, a limiting outer shell 18, which is fixedly connected to the circular plate 16, is fitted on the outer side of the top of the central shaft 11. A thrust bearing 19, fitted on the central shaft 11, is provided between the elastic element 17 and the pressure block 422. The pressure block 422, the thrust bearing 19, and the elastic element 17 are all located inside the limiting outer shell 18, and the outer diameter of the thrust bearing 19 is smaller than the inner diameter of the top of the limiting outer shell 18. In practical implementation, the cooperation between the limiting outer shell 18 and the thrust bearing 19, which are fixed on the circular plate 16, and the central shaft 11 guides and limits the movement of the central shaft 11, thereby ensuring that the drilling assembly 10 moves stably along the preset track, thus ensuring the accuracy and effect of drilling. In addition, by adjusting the inner diameter of the top of the limiting outer shell 18, the elastic element 17 and the thrust bearing 19 will not slip off the central shaft 11, and the elastic element 17 and the thrust bearing 19 are protected. It should be noted that the outer diameter of the pressure block 422 is smaller than the inner diameter of the top of the outer shell, so as to ensure that the pressure block 422 moves stably up and down outside the central shaft 11.

[0029] Additionally, the drive assembly 30 includes a drive member 31, a drive shaft 32 connected to the drive member 31, a bearing 33 disposed on the top of the drive shaft 32, and a transmission member 34 sleeved on the outside of the bearing 33. The transmission member 34 is fixedly connected to the top of the feed sleeve 42. In a specific implementation, the drive member 31 drives the drive shaft 32 to rotate. The central shaft 11 is connected to the drive shaft 32, which in turn drives the central shaft 11 to rotate, causing the drill bit 12 to rotate and drill. At the same time, the top of the drive shaft 32 drives the transmission member 34 to rotate through the bearing 33. The transmission member 34 then applies a rotational tendency to the feed sleeve 42, so that the spiral guide groove 421 and the vertical guide groove 423 on the feed sleeve 42 cooperate with the rolling torsion shaft 44 and the guide pin shaft 45, respectively, thereby causing the feed sleeve 42 to move vertically, pressing the central shaft 11 downward, causing the drill bit 12 to rotate and move downward, thus realizing the drilling function.

[0030] Specifically, the extrusion component 23 includes an elliptical plate 231 and a drive rod 232 connected to the elliptical plate 231. In a specific implementation, the drive rod 232 drives the elliptical plate 231 to rotate, thereby adjusting the contact point between the elliptical plate 231 and the rocker arms 24 on both sides. This allows the major axis or minor axis of the elliptical plate 231 to contact the top of the rocker arms 24, adjusting the distance between the bottoms of the rocker arms 24, thus realizing the extrusion or non-extrusion function of the rocker arms 24.

[0031] Additionally, the bottom of the extrusion body is equipped with two symmetrically arranged gauges 25, located on the side adjacent to the rocker arm 24. Each gauge 25 has a groove 251 at its bottom. In practice, the gauges 25 are used to accurately adjust and position the armor. The grooves 251 on the gauges 25 limit the drilling height, and the grooves 251 on both sides of the gauges pre-position the sides of the armor. Under the extrusion action of the clamping assembly 20, the clamping device automatically centers and positions the drilled hole. Thus, the position adjustment of the gauges 25 achieves the positioning of the drilled hole's front and rear positions on the armor. The height of the clamping assembly 20 and the gauges 25 ensures the positioning of the drilled hole's left and right positions and height on the armor, guaranteeing the drilling accuracy and effectiveness of the drilling device.

[0032] Specifically, the inner side of the boss 211 is provided with a groove 213, and a pressing block 26 is provided in the groove 213. The side of the pressing block 26 abuts against the bottom of the rocker arm 24. A clamping screw 27 is provided on the side of the boss 211. An auxiliary plate 28 extends outward from the top of the pressing block 26 and is located between the end of the clamping screw 27 and the boss 211. In specific implementation, the rocker arm 24 presses the pressing block 26 to clamp the armor, thereby avoiding direct contact between the rocker arm 24 and the armor, reducing wear between the two, and extending the service life of the rocker arm 24. The clamping block can be replaced separately, resulting in lower maintenance costs. In addition, since the rocker arm 24 achieves the clamping function through relative rotation between the top and bottom, if clamping is performed solely by the rocker arm 24, the length and shape of the rocker arm 24 need to be adjusted to ensure sufficient lateral clamping displacement and appropriate displacement, which has a large adaptability. However, by adjusting and replacing the detachable pressing plate, it can be adapted to the clamping requirements of armor of different sizes, thus having a higher adaptability. In addition, an auxiliary plate 28 is provided on the extrusion block 26, and a clamping screw 27 is provided on the boss portion 211. After the extrusion block 26 is clamped in place, the clamping screw 27 is tightened so that the end of the clamping screw 27 presses against the auxiliary rod to lock the position of the extrusion block 26, thereby ensuring the clamping effect and stability of the clamping assembly 20.

[0033] In summary, this invention uses a clamping assembly 20 to fix the drilling device onto the armor to be drilled, and assists the drilling assembly 10 in positioning so that the central shaft 11 and the drill bit 12 are aligned with the drilling area. The driving assembly 30 drives the central shaft 11 to rotate and move it downwards, causing the central shaft 11 to rotate and move downwards simultaneously with the drill bit 12, thus drilling a hole in the armor surface. As the drill bit 12 continues to move downwards to drill, the rollers 14 on the connecting rods 13 on both sides of the central shaft 11 and the clamping body 21... The contoured surface 22 abuts against the roller 14, causing the central axis 11 to move up and down in this area. A centrally symmetrical cutting edge 15 drills and cuts into the armor, rather than using a continuously designed blade. Through the cooperation of the cutting edge 15 and the contoured surface 22, the bottom contour of the hole cut near the superconducting conductor conforms to the surface of the superconducting conductor, rather than being a circular contour on the same plane. This prevents damage to the superconducting conductor inside the armor during drilling. Therefore, this invention solves the problem of the lack of a portable, easy-to-operate, and precisely controllable superconducting conductor armor drilling device that avoids damage to the internal superconducting material.

[0034] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A device for drilling holes in the armor of a superconducting conductor, characterized in that, include: A drilling assembly for drilling holes in the surface of armor, the drilling assembly including a central shaft and a drill bit disposed at the bottom of the central shaft; A clamping assembly is sleeved on the outside of the drilling assembly to clamp the armor so that the drilling assembly is suspended above the armor; A drive assembly, disposed above the drilling assembly, is used to drive the central shaft to rotate and move up and down. The clamping assembly includes a clamping body sleeved on the outside of the central shaft and a contour surface on the top of the clamping body. Connecting rods are provided on both sides of the central shaft, and rollers adapted to the contour surface are provided on the connecting rods. Two symmetrically arranged cutting edges are provided at the bottom of the drill bit.

2. The superconducting conductor armor drilling device according to claim 1, characterized in that, The clamping assembly further includes a pressing member sleeved on the outer side of the bottom of the clamping body, and rocker arms disposed on both sides of the bottom of the clamping body. The bottom of the clamping body extends downward with two symmetrically arranged protrusions, which enclose a receiving space for accommodating the armor. The bottom of one rocker arm is sleeved on both sides of the protrusion on the same side and rotatably connected to the protrusion. Rotating the pressing member drives the bottom of the two rocker arms to approach and clamp the armor.

3. The superconducting conductor armor drilling device according to claim 1, characterized in that, The superconducting conductor armor drilling device further includes a feeding assembly, which includes a bushing nested in an annular groove on the outer side of the top of the clamping body, a feeding sleeve sleeved on the clamping body, and a torque sleeve sleeved on the outer side of the feeding sleeve. Roller-torsion shafts are provided on both sides of the outer side of the torque sleeve, passing through the torque sleeve and the feeding sleeve and connecting to the bushing. The feeding sleeve is provided with a spiral guide groove adapted to the roller-torsion shaft. A pressure block extends downward from the inner side of the top of the feeding sleeve for squeezing the drilling assembly. The outer side of the top of the feeding sleeve is connected to the drive assembly for transmission, so that the drive assembly transmits the rotational tendency to the feeding sleeve.

4. The superconducting conductor armor drilling device according to claim 3, characterized in that, The feeding assembly also includes guide pins disposed on both sides of the clamping body, and the feeding sleeve is provided with a vertical guide groove adapted to the guide pins.

5. The superconducting conductor armor drilling device according to claim 3, characterized in that, A circular plate is provided on the outer side of the center shaft, the connecting rod is provided on the side of the circular plate, the pressure block is sleeved on the outer side of the top of the center shaft, and an elastic element sleeved on the center shaft is provided between the pressure block and the circular plate.

6. The superconducting conductor armor drilling device according to claim 5, characterized in that, A limiting shell, which is fixedly connected to the circular plate, is also fitted on the outer side of the top of the central shaft. A thrust bearing is provided between the elastic element and the pressure block and fitted on the central shaft. The pressure block, the thrust bearing and the elastic element are all located inside the limiting shell, and the outer diameter of the thrust bearing is smaller than the inner diameter of the top of the limiting shell.

7. The superconducting conductor armor drilling device according to claim 3, characterized in that, The drive assembly includes a drive component, a drive shaft connected to the drive component, a bearing disposed on the top of the drive shaft, and a transmission component sleeved on the outside of the bearing. The transmission component is fixedly connected to the top of the feed sleeve.

8. The superconducting conductor armor drilling device according to claim 2, characterized in that, The extrusion component includes an elliptical plate and a drive rod connected to the elliptical plate.

9. The superconducting conductor armor drilling device according to claim 2, characterized in that, The bottom of the extrusion body is provided with two symmetrically arranged clamps, which are located on the side adjacent to the rocker arm, and the bottom of the clamps is provided with a clamping groove.

10. The superconducting conductor armor drilling device according to claim 3, characterized in that, The inner side of the boss is provided with a sliding groove, and a pressing block is provided in the sliding groove. The side of the pressing block abuts against the bottom of the rocker arm. A clamping screw is provided on the side of the boss. An auxiliary plate extends outward from the top of the pressing block. The auxiliary plate is located between the end of the clamping screw and the boss.

Images