Coaxial electrode and cable integrated device applied to underwater pulse discharge

Abstract

The invention provides a coaxial electrode and cable integrated device applied to pulse discharge in water, which comprises a metal base, a negative electrode is in threaded connection with the center of the upper surface of the metal base, and a first metal arm and a second metal arm are mounted at the top of the metal base. A first connecting block and a second connecting block are fixedly installed on the tops of the first metal arm and the second metal arm respectively, a coaxial cable is arranged between the first connecting block and the second connecting block, an integrated positive electrode and a connector are installed at the bottom end of the coaxial cable, and the tops of the first connecting block and the second connecting block are jointly and fixedly connected with an annular guide rail. An annular groove is formed in the lower surface of the annular guide rail, a closed coil is installed in the annular groove, two connecting sliding blocks are slidably connected to the annular guide rail, and a fan is fixedly installed at the tops of the two connecting sliding blocks; the negative electrode is in threaded connection with the metal base, negative electrodes with different lengths can be replaced according to requirements to regulate and control the discharge gap, negative electrodes with different curvature radiuses can be conveniently replaced, and actual use is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of pulse discharge, and in particular to a coaxial electrode and cable integrated device applied to underwater pulse discharge. Background Art

[0002] The shock waves and strong electric field generated by pulse discharge can remove dirt, oil, rust and other impurities on the surface of the material, clean the surface of the material, and provide good surface conditions for subsequent processing or treatment. For example, in the surface pretreatment of metal materials, pulse discharge cleaning can improve the surface quality and adhesion of the material. The underwater pulse discharge device is widely used in the fields of casting sand removal, stone crushing, workpiece molding, spraying, etc. However, the existing technology has the following shortcomings when used:

[0003] The electrodes in the underwater pulse discharge device are usually fixed, especially the negative electrode is often connected to the steel drum itself. This is inconvenient for some application scenarios that require flexible movement, such as moving the electrodes for cleaning different areas. At the same time, the connection between the electrode and the cable does not adopt a coaxial integrated design, resulting in complicated wiring. At the same time, when the cable is powered on, its own temperature is high, and it is difficult to cool the cable, which is not conducive to actual use.

[0004] Therefore, there is an urgent need for a coaxial electrode and cable integrated device for underwater pulse discharge to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to address the problem that the electrodes in the existing underwater pulse discharge devices are usually fixed, especially the negative electrode is often connected to the steel drum itself, which is inconvenient for some application scenarios that require flexible movement, such as moving the electrodes for cleaning different areas. At the same time, the connection between the electrode and the cable does not adopt a coaxial integrated design, resulting in complicated wiring. At the same time, when the cable is powered on, its own temperature is high, and it is difficult to cool the cable, which is not conducive to actual use.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] The invention discloses a coaxial electrode and cable integrated device used for underwater pulse discharge to improve the above problems.

[0008] The specific application is as follows:

[0009] A coaxial electrode and cable integrated device for pulse discharge in water, comprising a metal base, a negative electrode being threadedly connected at the center of the upper surface of the metal base, a first metal arm and a second metal arm being mounted on the top of the metal base, a first connecting block and a second connecting block being fixedly mounted on the top of the first metal arm and the second metal arm, respectively, a coaxial cable being arranged between the first connecting block and the second connecting block, an integrated positive electrode and a connector being mounted on the bottom end of the coaxial cable, an annular guide rail being fixedly connected to the top of the first connecting block and the second connecting block, an annular groove being provided on the lower surface of the annular guide rail, a closed coil being mounted in the annular groove, two connecting sliders being slidably connected to the annular guide rail, a fan being fixedly mounted on the top of the two connecting sliders, and a clamping mechanism being arranged on the top of the first connecting block and the second connecting block.

[0010] As a preferred technical solution of the present application, the clamping mechanism includes a first metal clamp ring and a second metal clamp ring located above the first connecting block and the second connecting block, the first metal clamp ring is fixedly connected to two fixing plates at the bottom, the first connecting block is fixedly connected to a connecting rod at the top, and the second metal clamp ring is rotatably mounted on the connecting rod.

[0011] As a preferred technical solution of the present application, a fixing bolt is threadedly penetrated on the second metal clamp ring, and a screw hole matching the fixing bolt is opened on the first metal clamp ring.

[0012] As a preferred technical solution of the present application, the coaxial cable includes an outer insulating layer, a shielding layer, an inner insulating layer and a core wire.

[0013] As a preferred technical solution of the present application, the inner insulating layer is coated on the outside of the core wire, the shielding layer is coated on the outside of the inner insulating layer, and the outer insulating layer is coated on the outside of the shielding layer.

[0014] As a preferred technical solution of the present application, the metal base is provided with a plurality of hollow openings arranged at equal angles in a circle.

[0015] As a preferred technical solution of the present application, the coaxial cable is located between the first metal clamp ring and the second metal clamp ring, and the outer surface of the coaxial cable is respectively in contact with the first metal clamp ring and the second metal clamp ring, and the first metal clamp ring is in contact with the second metal clamp ring.

[0016] As a preferred technical solution of the present application, the fixing sleeve on the connecting rod is provided with two limiting rings, and the two limiting rings are both fitted with the second metal clamp ring.

[0017] As a preferred technical solution of the present application, the two fixing plates are fixedly connected to the first connecting block and the second connecting block respectively, the first connecting block and the second connecting block are symmetrically distributed about the central axis of the metal base, and the first connecting block and the second connecting block have the same specifications.

[0018] As a preferred technical solution of the present application, the first metal arm and the second metal arm have the same specifications, and the first metal arm and the second metal arm are both V-shaped.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the scheme of this application:

[0021] 1. The device is integrated and movable, which increases the flexibility of pulse discharge of the negative electrode in water and can be flexibly adapted to different application scenarios.

[0022] 2. The integrated positive electrode and connector are installed at the end of the coaxial cable, so that they form an integrated structure with the coaxial cable, which is convenient for subsequent wiring and reduces the complexity of the connection.

[0023] 3. The first metal arm and the second metal arm facilitate the subsequent transmission of electrical energy, while avoiding blocking the path of the shock wave generated by the discharge between the electrodes.

[0024] 4. The negative electrode is threadedly connected to the metal base. The negative electrodes of different lengths can be replaced according to needs to adjust the discharge gap. It is also convenient to replace the negative electrodes with different curvature radii, which expands the control range of pulse discharge in water and improves the compactness of the electrode.

[0025] 5. When the negative electrode breaks down and causes the shock wave to spread outward, the shock wave can spread outward through multiple hollow openings.

[0026] 6. When the coaxial cable is energized, following Ampere's law, when current passes through the conductor, a magnetic field will be generated around the conductor. Therefore, a magnetic field will be generated around the coaxial cable. According to Faraday's law of electromagnetic induction, when the magnetic flux passing through the closed coil changes, an induced electromotive force and an induced current will be generated in the closed coil. The induced current and induced electromotive force drive the fan to rotate, and the two connected sliders make circular motion on the annular guide rail. The rotating fan blows air to the outside, which can cool the coaxial cable.

[0027] 7. The first metal clamp ring, the second metal clamp ring, the fixing bolt and the screw hole cooperate to fix the coaxial cable and prevent the coaxial cable from deflecting, which is convenient for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a schematic diagram of the overall structure of a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0029] Figure 2 This is a front view structural schematic diagram of a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0030] Figure 3 A schematic diagram of the connection structure between a second metal clamp ring and a fixing bolt in a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0031] Figure 4 A schematic structural diagram of a first metal clamp ring in a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0032] Figure 5 A schematic diagram of the connection structure between a fan and a connecting slider in a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0033] Figure 6 A schematic diagram of the cross-sectional structure of a coaxial cable in a coaxial electrode and cable integrated device for underwater pulse discharge provided in the present application.

[0034] Indicated in the figure:

[0035] 1. Metal base; 2. Negative electrode; 3. First metal arm; 4. Second metal arm; 5. First connecting block; 6. Second connecting block; 7. Coaxial cable; 8. Integrated positive electrode and connector; 9. Annular guide rail; 701. Outer insulation layer; 702. Shielding layer; 703. Inner insulation layer; 704. Core wire; 10. Annular groove; 11. Closed coil; 12. Connecting slider; 13. Fan; 14. First metal clamp ring; 15. Second metal clamp ring; 16. Fixing plate; 17. Connecting rod; 18. Fixing bolt; 19. Screw hole; 20. Hollow opening; 21. Limiting ring. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0037] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0041] Example:

[0042] like Figure 1-6As shown, a coaxial electrode and cable integrated device for underwater pulse discharge proposed in the present embodiment includes a metal base 1, a negative electrode 2 is threadedly connected at the center of the upper surface of the metal base 1, and the device can be flexibly placed at a position where underwater pulse discharge is required, thereby increasing the flexibility of the negative electrode 2 in underwater pulse discharge. The negative electrode 2 is threadedly connected to the metal base 1, and negative electrodes 2 of different lengths can be replaced as needed to adjust the discharge gap, and negative electrodes 2 of different curvature radii can also be easily replaced, thereby expanding the control range of underwater pulse discharge and improving the compactness of the electrodes. A first metal arm 3 and a second metal arm 4 are installed on the top of the metal base 1, and a first connecting block 5 and a second connecting block 6 are fixedly installed on the top of the first metal arm 3 and the second metal arm 4, respectively. The first metal arm 3 and the second metal arm 4 facilitate subsequent transmission of electrical energy, and at the same time, can avoid blocking the path of the shock wave generated by the discharge between the electrodes. A coaxial cable 7 is arranged between the first connecting block 5 and the second connecting block 6, and an integrated positive electrode and a connecting rod are installed at the bottom of the coaxial cable 7. Connector 8, when the coaxial cable 7 is energized, following Ampere's law, when current passes through the conductor, a magnetic field will be generated around the conductor, therefore, a magnetic field will be generated around the coaxial cable 7, the first connecting block 5 and the second connecting block 6 are fixedly connected with an annular guide rail 9 on the top, an annular groove 10 is provided on the lower surface of the annular guide rail 9, a closed coil 11 is installed in the annular groove 10, two connecting sliders 12 are slidably connected to the annular guide rail 9, and a fan 13 is fixedly installed on the top of the two connecting sliders 12. According to Faraday's law of electromagnetic induction, when the magnetic flux passing through the closed coil 11 changes, an induced electromotive force and an induced current will be generated in the closed coil 11, and the fan 13 is driven to rotate by the generated induced current and induced electromotive force, and the two connecting sliders 12 make a circular motion on the annular guide rail 9, and the rotating fan 13 blows air to the outside, so as to cool the coaxial cable 7, and a clamping mechanism is provided on the top of the first connecting block 5 and the second connecting block 6, and the coaxial cable 7 can be fixed by the provided clamping mechanism to prevent the coaxial cable 7 from deflecting.

[0043] like Figure 1 and Figure 2 As shown, the clamping mechanism includes a first metal clamp ring 14 and a second metal clamp ring 15 located above the first connecting block 5 and the second connecting block 6. The bottom of the first metal clamp ring 14 is fixedly connected to two fixing plates 16, and the top of the first connecting block 5 is fixedly connected to a connecting rod 17. The second metal clamp ring 15 is rotatably sleeved on the connecting rod 17. One end of the coaxial cable 7 is passed through the fan 13, and the second metal clamp ring 15 is rotated to make the second metal clamp ring 15 fit with the first metal clamp ring 14. At this time, the coaxial cable 7 is located between the first metal clamp ring 14 and the second metal clamp ring 15.

[0044] like Figure 2 and Figure 4As shown, a fixing bolt 18 is threadedly passed through the second metal clamp ring 15, and a screw hole 19 matched with the fixing bolt 18 is opened on the first metal clamp ring 14. The fixing bolt 18 is rotated so that one end of the fixing bolt 18 is located in the screw hole 19, thereby fixing the coaxial cable 7 for subsequent operations.

[0045] like Figure 6 As shown, the coaxial cable 7 includes an outer insulating layer 701 , a shielding layer 702 , an inner insulating layer 703 and a core wire 704 .

[0046] like Figure 6 As shown, the inner insulating layer 703 is covered on the outside of the core wire 704, the shielding layer 702 is covered on the outside of the inner insulating layer 703, and the outer insulating layer 701 is covered on the outside of the shielding layer 702. When the staff touches the coaxial cable 7, the outer insulating layer 701 cooperates with the shielding layer 702 to ensure safety during contact and no electric shock will occur.

[0047] like Figure 1 As shown, the metal base 1 is provided with a plurality of hollow openings 20 arranged at equal angles in a circle. When the negative electrode 2 is broken down and causes the shock wave to spread outward, the shock wave can spread outward through the plurality of hollow openings 20 .

[0048] like Figure 1 and Figure 2 As shown, the coaxial cable 7 is located between the first metal clamp ring 14 and the second metal clamp ring 15 , and the outer surface of the coaxial cable 7 is respectively in contact with the first metal clamp ring 14 and the second metal clamp ring 15 , and the first metal clamp ring 14 is in contact with the second metal clamp ring 15 .

[0049] like Figure 3 As shown, two limiting rings 21 are fixedly sleeved on the connecting rod 17, and the two limiting rings 21 are both fitted with the second metal clamp ring 15. The second metal clamp ring 15 can be limited in the vertical direction by the two limiting rings 21.

[0050] like Figure 1 and Figure 2 As shown, the two fixing plates 16 are fixedly connected to the first connecting block 5 and the second connecting block 6 respectively. The first connecting block 5 and the second connecting block 6 are symmetrically distributed about the central axis of the metal base 1, and the first connecting block 5 and the second connecting block 6 have the same specifications.

[0051] like Figure 1 As shown, the first metal arm 3 and the second metal arm 4 have the same specifications, and both are V-shaped. The first metal arm 3 and the second metal arm 4 provide support for the metal base 1 and can transmit electrical energy. The first metal arm 3 and the second metal arm 4 are thinner at both ends and thicker in the middle, which can avoid blocking the path of the shock wave generated by the discharge between the electrodes, which is beneficial to practical use.

[0052] Specifically, when the coaxial electrode and cable integrated device for underwater pulse discharge is used: one end of the coaxial cable 7 is passed through the fan 13, and the second metal clamp ring 15 is rotated to make the second metal clamp ring 15 fit with the first metal clamp ring 14. At this time, the coaxial cable 7 is located between the first metal clamp ring 14 and the second metal clamp ring 15. Then the fixing bolt 18 is rotated to make one end of the fixing bolt 18 located in the screw hole 19, so as to fix the coaxial cable 7. Then, the device can be flexibly placed at the position where underwater pulse discharge is required, thereby increasing the flexibility of the negative electrode 2 in underwater pulse discharge. The negative electrode 2 is threadedly connected to the metal base 1. The negative electrodes 2 of different lengths can be replaced as needed to adjust the discharge gap. It is also convenient to replace the negative electrodes 2 with different curvature radii, thereby expanding the control range of the underwater pulse discharge and improving the compactness of the electrode. The integrated positive electrode and connector 8 are installed at the end of the coaxial cable 7 to form an integrated structure with the coaxial cable 7, which is convenient for later use. The wiring is continued, which reduces the complexity of the wiring. The first metal arm 3 and the second metal arm 4 facilitate the subsequent transmission of electric energy, and at the same time, it can avoid blocking the path of the shock wave generated by the discharge between the electrodes. When the negative electrode 2 breaks down and causes the shock wave to spread outward, the shock wave can spread outward through the multiple hollow openings 20. When the coaxial cable 7 is energized, following Ampere's law, when current passes through the conductor, a magnetic field will be generated around the conductor. Therefore, a magnetic field will be generated around the coaxial cable 7. According to Faraday's law of electromagnetic induction, when the magnetic flux passing through the closed coil 11 changes, an induced electromotive force and an induced current will be generated in the closed coil 11. The fan 13 is driven to rotate by the generated induced current and induced electromotive force. The two connecting sliders 12 make a circular motion on the annular guide rail 9. The rotating fan 13 blows air to the outside, which can cool the coaxial cable 7. After the coaxial cable 7 is energized, it can be completed in cooperation with the closed coil 11. No additional power source is required, the structure is simple, and it is conducive to practical promotion.

[0053] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A coaxial electrode and cable integrated device for underwater pulse discharge, comprising a metal base (1), characterized in that: A negative electrode (2) is threadedly connected at the center of the upper surface of the metal base (1); a first metal arm (3) and a second metal arm (4) are installed on the top of the metal base (1); a first connecting block (5) and a second connecting block (6) are fixedly installed on the top of the first metal arm (3) and the second metal arm (4), respectively; a coaxial cable (7) is arranged between the first connecting block (5) and the second connecting block (6); an integrated positive electrode and a connector (8) are installed at the bottom end of the coaxial cable (7); an annular guide rail (9) is fixedly connected to the top of the first connecting block (5) and the second connecting block (6); an annular groove (10) is provided on the lower surface of the annular guide rail (9); a closed coil (11) is installed in the annular groove (10); two connecting sliders (12) are slidably connected to the annular guide rail (9); a fan (13) is fixedly installed on the top of the two connecting sliders (12); and a clamping mechanism is arranged on the top of the first connecting block (5) and the second connecting block (6).

2. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 1, characterized in that: The clamping mechanism comprises a first metal clamp ring (14) and a second metal clamp ring (15) located above the first connecting block (5) and the second connecting block (6); the bottom of the first metal clamp ring (14) is fixedly connected to two fixing plates (16); the top of the first connecting block (5) is fixedly connected to a connecting rod (17); and the second metal clamp ring (15) is rotatably sleeved on the connecting rod (17).

3. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 2, characterized in that: A fixing bolt (18) is threadedly penetrated on the second metal clamp ring (15), and a screw hole (19) adapted to the fixing bolt (18) is opened on the first metal clamp ring (14).

4. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 1, characterized in that: The coaxial cable (7) comprises an outer insulating layer (701), a shielding layer (702), an inner insulating layer (703) and a core wire (704).

5. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 4, characterized in that: The inner insulating layer (703) is wrapped around the core wire (704), the shielding layer (702) is wrapped around the inner insulating layer (703), and the outer insulating layer (701) is wrapped around the shielding layer (702).

6. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 1, characterized in that: The metal base (1) is provided with a plurality of hollow openings (20) arranged at equal angles in a circle.

7. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 2, characterized in that: The coaxial cable (7) is located between the first metal clamp ring (14) and the second metal clamp ring (15), and the outer surface of the coaxial cable (7) is respectively in contact with the first metal clamp ring (14) and the second metal clamp ring (15), and the first metal clamp ring (14) is in contact with the second metal clamp ring (15).

8. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 2, characterized in that: The connecting rod (17) is fixedly sleeved with two limiting rings (21), and the two limiting rings (21) are both fitted with the second metal clamp ring (15).

9. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 2, characterized in that: The two fixing plates (16) are respectively fixedly connected to the first connecting block (5) and the second connecting block (6); the first connecting block (5) and the second connecting block (6) are symmetrically distributed about the central axis of the metal base (1); and the first connecting block (5) and the second connecting block (6) have the same specifications.

10. The coaxial electrode and cable integrated device for underwater pulse discharge according to claim 1, characterized in that: The first metal arm (3) and the second metal arm (4) have the same specifications, and both the first metal arm (3) and the second metal arm (4) are V-shaped.

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