A device for preparing a steel wire coated with aluminum layer by induction heating

Abstract

This utility model discloses a method and apparatus for preparing an aluminum-clad steel wire using induction heating, belonging to the field of steel wire armor. It includes a first fixing member, a second fixing member on one side of the first fixing member, an induction coil for heating between the first and second fixing members, a covering component for coating the steel wire strand with an aluminum layer in the middle of the induction coil, a moving component installed below the covering component, a first lead screw and a second lead screw symmetrically positioned above the middle of the first and second fixing members, and both the first and second fixing members include an upper fixing frame, with a lower fixing frame symmetrically positioned below the upper fixing frame. This design, by setting the first and second fixing members, allows the apparatus to directly coat damaged cables with an aluminum layer without removing the outer sheath, and to test the resistance value after coating to ensure the high efficiency and stability of the coating process.

Description

Technical Field

[0001] This utility model relates to the field of steel wire armor, and more specifically, to a method and apparatus for preparing a steel wire-clad aluminum layer using induction heating. Background Technology

[0002] As a global advocate and leader in long-distance ultra-high voltage power transmission and transformation technology, China continues to promote the development of key materials and core processes. Aluminum-clad steel wire is a composite conductor material made by extrusion process with high-strength steel as the core and aluminum as the cladding layer. It combines the high tensile strength of steel with the excellent conductivity of aluminum and has been widely used in power systems, especially as a reinforcing core material in aluminum-clad steel stranded ground wires, optical fiber composite overhead ground wires, and aluminum-clad steel core aluminum stranded wires.

[0003] In the fields of power transmission and communication, steel wire-clad aluminum cables are widely used due to their excellent mechanical strength and conductivity. These cables typically use high-strength steel wire as the core and are covered with a layer of highly conductive aluminum to balance tensile strength and conductivity requirements. However, in actual use, the aluminum layer may be partially damaged due to mechanical wear, environmental corrosion, or long-term fatigue, which in turn affects the cable's conductivity, corrosion resistance, and service life.

[0004] Traditional methods for repairing damaged aluminum layers mainly include the following two: Complete cable replacement: The damaged section of cable is removed and replaced with a new cable; This method is costly and has a long construction period, especially for long-distance cables or complex environments (such as underground, high altitude, etc.), making the project difficult; Partial welding or cold pressing repair: The damaged area of ​​the aluminum layer is filled by welding or mechanical pressing; However, welding is prone to damaging the steel wire core or insulation material due to high temperature, while cold pressing repair has low interface bonding strength, which may lead to secondary detachment or increased contact resistance.

[0005] In view of this, and to address the aforementioned shortcomings, this utility model develops a method and apparatus for preparing a steel wire-clad aluminum layer using induction heating. Summary of the Invention

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a method and apparatus for preparing an aluminum-clad steel wire layer using induction heating, which can achieve the re-cladding of the aluminum layer in the original position without removing or cutting the damaged cable.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A method and apparatus for preparing an aluminum-clad steel wire layer using induction heating includes a first fixing member, a second fixing member on one side of the first fixing member, an induction coil for heating between the first fixing member and the second fixing member, a cladding component for cladding the steel wire strand with an aluminum layer in the middle of the induction coil, a moving component installed below the cladding component, and a first lead screw and a second lead screw symmetrically arranged above the middle of the first fixing member and the second fixing member.

[0009] Both the first and second fixing components include an upper fixing frame. A lower fixing frame, symmetrical to itself, is provided below the upper fixing frame. A first connecting frame and a second connecting frame are fixedly installed on both sides of the upper fixing frame, respectively. A third connecting frame is fixedly installed on the side of the lower fixing frame corresponding to the first connecting frame, and a fourth connecting frame is fixedly installed on the side of the lower fixing frame corresponding to the second connecting frame. The first and third connecting frames are hinged. The end of a first lead screw near the first fixing component is rotatably mounted on the hinge between the first and third connecting frames on the first fixing component. The end of the first lead screw away from the first fixing component is threadedly engaged at the hinge between the first and third connecting frames corresponding to the second fixing component. The end of a second lead screw near the first fixing component is rotatably mounted on the second connecting frame corresponding to the first fixing component. The end of the second lead screw near the second fixing component is threadedly engaged in the middle of the second connecting frame corresponding to the second fixing component.

[0010] Furthermore, a plurality of evenly distributed sliding rods are provided at the lower position between the first and second fixing members. A support frame is fixedly installed at the bottom end of the lower fixing frame. The end of the sliding rod near the first fixing member is fixedly installed on the support frame corresponding to the first fixing member. The end of the sliding rod near the second fixing member slides through the lower end of the support frame corresponding to the second fixing member. A plurality of evenly distributed first screws are rotatably installed on the upper fixing frame, and a plurality of evenly distributed second screws are rotatably installed on the lower fixing frame. A Z-shaped cut is formed between the first screws and the corresponding second screws. An upper fixing plate is provided below the upper fixing frame, and a plurality of upper fixing members are threaded onto the upper fixing plate. A lower fixing plate is provided above the lower fixing frame, and a plurality of second screws are threaded onto the lower fixing plate. A plurality of evenly distributed spherical protrusions are provided on both sides of the second connecting frame, and a groove corresponding to the second connecting frame is opened on the inner side of the fourth connecting frame.

[0011] Furthermore, the covering component includes an upper ceramic sleeve, and a lower ceramic sleeve symmetrically positioned below the upper ceramic sleeve. The interiors of the upper and lower ceramic sleeves are joined to form a sealed chamber. A first locking element is rotatably installed on the side of the upper and lower ceramic sleeves away from the first fixing element, and a second locking element is rotatably installed on the side of the upper and lower ceramic sleeves near the first fixing element. The two first locking elements are fixed together by screws, and the two second locking elements are also fixed together by screws. Multiple evenly distributed arc-shaped plates are fixedly installed inside the sealed chamber formed by the upper and lower ceramic sleeves. The arc-shaped plates are used to stir the molten liquid aluminum towards the center.

[0012] Furthermore, the movable component includes a movable frame, with a sliding rod sliding through the movable frame. A first side plate is fixedly installed on the upper surface of the movable frame near the first fixing member, and a second side plate is fixedly installed on the upper surface of the movable frame near the second fixing member. A semi-circular bracket is fixedly installed on both the first and second side plates. A semi-circular groove corresponding to the semi-circular bracket is opened on each of the two first locking members, and a semi-circular groove corresponding to the semi-circular bracket is also opened on each of the two second locking members. The semi-circular bracket is slidably locked inside the semi-circular groove. A first gear set is installed on the side of the first side plate near the second side plate, and a second gear set is installed on the side of the second side plate near the first side plate. A worm gear is rotatably installed on the movable frame, and a first worm wheel meshing with the worm gear is provided between the first gear set and the second gear set. Multiple evenly distributed cooling grooves are opened on each of the two second locking members.

[0013] Furthermore, the first gear set includes a first gear ring, which is rotatably mounted on a first side plate. A first sun gear is provided in the middle of the first gear ring, and the first sun gear is fixedly mounted on the first side plate. A first planetary carrier is provided on the side of the first gear ring near the second gear set. Multiple first planetary gears are rotatably mounted on the first planetary carrier. The first planetary gears mesh with both the first gear ring and the first sun gear. The first gear ring is in close contact with the surface of the lower ceramic sleeve. The second gear set includes a second gear ring, which is fixedly mounted on a second side plate. A second sun gear is provided in the middle of the second gear ring, and the second sun gear is rotatably mounted on the second side plate. A second planetary carrier is provided on the side of the second gear ring near the first gear set. Multiple evenly distributed second planetary gears are rotatably mounted on the second planetary carrier. The second planetary gears mesh with both the second gear ring and the second sun gear. Both the first planetary carrier and the second planetary carrier are fixedly mounted in the middle of the first worm gear.

[0014] Furthermore, two symmetrical sliding sleeves are fixedly installed on the induction coil. The two sliding sleeves are respectively sleeved on the outside of the corresponding first lead screw and second lead screw. A connecting sleeve is fixedly installed on the side of the second side plate near the first lead screw. The connecting sleeve is rotatably installed on the outside of one of the sliding sleeves.

[0015] Furthermore, a first transmission wheel is provided on the side of the second side plate away from the first side plate. The first transmission wheel is fixedly connected to the second sun gear. Multiple evenly distributed second transmission wheels are rotatably mounted on the second side plate via a bracket. The multiple second transmission wheels and the first transmission wheel are located on the same horizontal plane. The multiple second transmission wheels and the first transmission wheel are driven by a transmission belt.

[0016] Furthermore, the covering component has a winding component for wrapping the insulating layer on the side near the first fixing member. The winding component includes a fixing bracket, on which a C-shaped slide rail is fixedly installed. A C-shaped wheel is rotatably installed on the side of the C-shaped slide rail near the first fixing member. The transmission belt drives the lower end of the C-shaped wheel. An insulating film roll is detachably installed on the side of the C-shaped wheel away from the C-shaped slide rail.

[0017] Furthermore, a second worm wheel is engaged below the worm, and the second worm wheel is rotatably mounted on the movable frame via a bracket. A third lead screw is provided between the first and second fixed members. The end of the third lead screw near the first fixed member is fixedly mounted on the support frame corresponding to the first fixed member, and the end of the third lead screw near the second fixed member slides through the support frame corresponding to the second fixed member. The second worm wheel is threaded onto the outside of the third lead screw, and a throttle handle is fixedly mounted on one end of the worm.

[0018] A method for preparing a steel wire-clad aluminum layer using induction heating, employing an apparatus for preparing a steel wire-clad aluminum layer using induction heating, includes the following steps:

[0019] S1. Use a knife to remove the insulation layer around the damaged area, and then clean the area to be covered. Clean the area of ​​the steel wire to be covered to remove impurities and oxide layer.

[0020] S2. Aluminum sheet preparation: Clean the aluminum sheet to be coated to remove impurities and oxide layer, and evenly wrap the aluminum layer around the area to be coated by the steel wire.

[0021] S3. Clamping preparation: First, open the first and second fixing parts. Clamp the steel wire wrapped with aluminum using the upper and lower ceramic sleeves. Then, tighten the screws on the first and second locking parts. The first and second locking parts can match the texture of the steel wire strand to clamp the exposed steel wire strand. At this time, the upper and lower ceramic sleeves are locked to form a sealed chamber. Then, close the first and second fixing parts.

[0022] S4. Induction pressure coating: The clamped sample will be in the induction coil. The induction heating mold will reach the hot melt temperature. At this time, the moving part will drive the upper ceramic sleeve and the lower ceramic sleeve to rotate rapidly. When rotating, the moving part can also drive the induction coil, the coating part, and the winding part to move at a constant speed on the slide rod. The two first locking parts and the two second locking parts can also rotate slowly with the pattern of the steel wire strand when they are driven to move forward at a constant speed.

[0023] S5. After coating, the sample is processed. During the movement, the cooling grooves on the two second locking parts can quickly cool the aluminum layer to form armor, and can be pressed by the two second locking parts onto the surface of the steel wire strand to form a uniform armor layer.

[0024] S6. When moving at a constant speed, the winding component can insulate the already armored area by winding an insulating layer on its surface, thereby completing the overall maintenance work.

[0025] S7. Data processing: After the test, the resistance value of the tested sample is directly output. Since the length of the tested sample is different, it affects the comparison of the steel wire performance. The resistance values ​​of all steel wires are uniformly converted to the resistance under a length of 1 meter as shown in formula (1). The measured resistance is converted to conductivity as shown in formula (2) to complete the measurement work and ensure that the resistance value after repair meets the standard.

[0026] (1)

[0027] (2)

[0028] In the formula: σ is conductivity, ρ is resistivity, L is the actual measured length of the steel wire, R is the resistance value, and A is the cross-sectional area of ​​the steel wire.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. This solution, by setting up a first fixing component and a second fixing component, enables the device to directly cover damaged cables with an aluminum layer without removing the outer sheath. After the covering is completed, the resistance value is tested to ensure that the covering is efficient and stable.

[0031] 2. This solution, by setting up a covering component, can drive the upper and lower ceramic sleeves to rotate at high speed during stable movement, thereby uniformly wrapping the liquid aluminum on the surface of the steel wire strand.

[0032] 3. This solution prevents the cable from being damaged under tension due to heating by changing the distance between the first and second fixing parts. It also allows the stranded wire in the area to be covered to burst open, further improving the comprehensiveness of the covering.

[0033] 4. This solution incorporates a winding component that wraps the insulation layer around the cooled cable as it moves, reducing the tedious manual wrapping work required by workers and improving the convenience of the device. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the connection structure between the first fixing member and the second fixing member in this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the first fixing member in this utility model;

[0037] Figure 4 This is a schematic diagram of the connection structure of the induction coil, the covering component, and the moving component in this utility model;

[0038] Figure 5 This is a schematic diagram of the structure of the covering component in this utility model;

[0039] Figure 6 This is a cross-sectional structural diagram of the upper ceramic sleeve and the lower ceramic sleeve in this utility model;

[0040] Figure 7 This is a schematic diagram of the structure of the moving component in this utility model;

[0041] Figure 8 This is a schematic diagram of the structure of the first gear set and the second gear set in this utility model;

[0042] Figure 9 This is a schematic diagram of the winding component in this utility model.

[0043] Explanation of the labels in the diagram:

[0044] 1. First fixing component; 2. Second fixing component; 3. Induction coil; 4. Covering component; 5. Moving component; 6. Winding component; 7. First lead screw; 8. Slide rod; 11. Upper fixing frame; 12. Lower fixing frame; 13. First connecting frame; 14. Second connecting frame; 15. Third connecting frame; 16. Fourth connecting frame; 17. Support frame; 31. Sliding sleeve; 41. Upper ceramic sleeve; 42. Lower ceramic sleeve; 43. First locking component; 44. Second locking component; 51. Moving frame; 52. First side plate; 53. Second side plate; 54. First gear set; 55. Second gear set; 61. Fixed bracket; 62. C-shaped slide rail; 63. C 64. Rotary wheel; 71. Insulating film roll; 72. Second lead screw; 73. Third lead screw; 111. First screw; 112. Upper fixing plate; 121. Second screw; 122. Lower fixing plate; 141. Spherical protrusion; 411. Arc plate; 511. Worm; 512. First worm gear; 513. Second worm gear; 514. Throttle; 531. Semicircular bracket; 532. Connecting sleeve; 533. First transmission wheel; 534. Second transmission wheel; 535. Transmission belt; 541. First gear ring; 542. First sun gear; 543. First planetary carrier; 551. Second gear ring; 552. Second sun gear; 553. Second planetary carrier. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0046] Please see Figures 1 to 9 An apparatus for preparing an aluminum-clad steel wire layer using induction heating includes a first fixing member 1, a second fixing member 2 on one side of the first fixing member 1, an induction coil 3 for heating between the first fixing member 1 and the second fixing member 2, a covering component 4 for covering the aluminum layer of the steel wire strand in the middle of the induction coil 3, a moving component 5 installed below the covering component 4, a first lead screw 7 and a second lead screw 71 symmetrically arranged above the middle of the first fixing member 1 and the second fixing member 2, a winding component 6 for wrapping an insulating layer on the side of the covering component 4 near the first fixing member 1, a plurality of evenly distributed sliding rods 8 below the middle of the first fixing member 1 and the second fixing member 2, and a third lead screw 72 between the first fixing member 1 and the second fixing member 2.

[0047] In actual use, firstly, open the first fixing part 1 and the second fixing part 2. At this time, the induction coil 3 is lifted. Then, disassemble the covering part 4, evenly wind the aluminum sheet around the steel wire strand, and then clamp it with the covering part 4. Then lock the covering part 4, and then close the first fixing part 1 and the second fixing part 2. Rotating the first lead screw 7 and the second lead screw 71 can change the distance between the first fixing part 1 and the second fixing part 2. At this time, the induction coil 3 works to heat the aluminum sheet and steel wire inside the covering part 4, so that the aluminum sheet is heated and melted. After the steel wire is heated, it will better adhere to the liquid aluminum. At the same time, the covering part 4 is driven to rotate by the moving part 5. During rotation, the liquid aluminum is agitated and more thoroughly adheres to each wire in the steel wire strand. As the moving part 5 drives the coating part 4 to rotate, it can also move forward continuously. The liquid aluminum inside the coating part 4 can continuously coat the areas it has moved with an aluminum layer. At the same time, during the movement, the coating part 4 can also cool the wrapped steel wire strand and scrape off excess aluminum for further heating and melting to prevent uneven aluminum layering. When the moving part 5 moves, it can also drive the winding part 6 to move. When the winding part 6 moves, it can insulate the already wrapped area and evenly wrap the insulating tape around the armored area.

[0048] Both the first fixing member 1 and the second fixing member 2 include an upper fixing frame 11. A lower fixing frame 12, symmetrical to itself, is provided below the upper fixing frame 11. A first connecting frame 13 and a second connecting frame 14 are fixedly installed on both sides of the upper fixing frame 11, respectively. A third connecting frame 15 is fixedly installed on the side of the lower fixing frame 12 corresponding to the first connecting frame 13, and a fourth connecting frame 16 is fixedly installed on the side of the lower fixing frame 12 corresponding to the second connecting frame 14. The first connecting frame 13 and the third connecting frame 15 are hinged together. The first lead screw 7 is located near the end of the first fixing member 1. The hinge joint between the first connecting frame 13 and the third connecting frame 15, which are rotatably mounted on the first fixing member 1, is located at the joint of the first connecting frame 13 and the third connecting frame 15 corresponding to the second fixing member 2. The end of the second connecting rod 7 away from the first fixing member 1 is threadedly engaged with the hinge joint of the first connecting frame 13 and the third connecting frame 15 corresponding to the second fixing member 2. The end of the second connecting rod 71 near the first fixing member 1 is rotatably mounted on the second connecting frame 14 corresponding to the first fixing member 1. The end of the second connecting rod 71 near the second fixing member 2 is threadedly engaged with the middle of the second connecting frame 14 corresponding to the second fixing member 2. The bottom of the lower fixing member 12... A support frame 17 is fixedly installed at one end. The end of the slide rod 8 near the first fixing member 1 is fixedly installed on the support frame 17 corresponding to the first fixing member 1. The end of the slide rod 8 near the second fixing member 2 slides through the lower end of the support frame 17 corresponding to the second fixing member 2. Multiple evenly distributed first screws 111 are rotatably installed on the upper fixing frame 11, and multiple evenly distributed second screws 121 are rotatably installed on the lower fixing frame 12. A Z-shaped cut is formed between the first screws 111 and the corresponding second screws 121. An upper fixing plate is provided below the upper fixing frame 11. 112, multiple upper fixing brackets 11 are threaded onto upper fixing plate 112, a lower fixing plate 122 is provided above the lower fixing bracket 12, multiple second screws 121 are threaded onto the lower fixing plate 122, the second connecting bracket 14 has multiple evenly distributed spherical protrusions 141 on both sides, the inner side of the fourth connecting bracket 16 has a groove corresponding to the second connecting bracket 14, and two symmetrical sliding sleeves 31 are fixedly installed on the induction coil 3, and the two sliding sleeves 31 are respectively sleeved on the outside of the corresponding first lead screw 7 and second lead screw 71.

[0049] When it is necessary to open the first fixing part 1 and the second fixing part 2, simply hold the upper fixing frame 11 and the lower fixing frame 12 with both hands respectively, and then pull them apart. Under the action of the pulling force, the spherical protrusion 141 disengages from the groove inside the fourth connecting frame 16. At this time, the first connecting frame 13, the upper fixing frame 11, and the covering part 4 rotate upward around the first lead screw 7. Because the sliding sleeve 31 is sleeved on the outside of the third lead screw 72, the induction coil 3 will also be driven to rotate around the first lead screw 7. Then, the covering part 4 is then... Disassemble and clamp it in the area to be covered, then tighten it again. After installation, the steel wire strand will enter the interior of the fixing bracket 61. Then, merge the second connecting bracket 14 and the fourth connecting bracket 16. The spherical protrusion 141 will be locked in the groove inside the fourth connecting bracket 16. After merging, the first screw 111 and the corresponding second screw 121 will be spliced ​​to form a complete bolt. The threads on the first screw 111 and the threads on the second screw 121 are opposite in direction. At this time, rotate the first screw 111 and the second screw. 121 moves the upper fixing plate 112 and the lower fixing plate 122 closer together, thereby clamping the cable. When the upper fixing plate 112 and the lower fixing plate 122 are close together, they lock the splicing position of the first screw 111 and the upper fixing plate 112, preventing them from moving. This locks the upper fixing frame 11 and the lower fixing frame 12, preventing them from rotating and increasing their fixing effect. Only when the upper fixing plate 112 and the lower fixing plate 122 are farthest apart will the upper fixing frame 11 and the lower fixing plate 122 be locked together. The fixing frame 12 can only be opened. After the cable is locked, use a tool to rotate the first screw 7 and the second screw 71, so that the first fixing part 1 and the second fixing part 2 are driven to move closer to each other. Since the area to be covered is located between the first fixing part 1 and the second fixing part 2, shortening the distance between the first fixing part 1 and the second fixing part 2 can pull the middle steel wire strand, thereby causing the steel wire in the steel wire strand to slightly burst open, so that small gaps appear between each steel wire, which facilitates the subsequent flow of liquid aluminum and increases the covering effect.

[0050] The covering component 4 includes an upper ceramic sleeve 41, and a lower ceramic sleeve 42 symmetrically located below the upper ceramic sleeve 41. The interiors of the upper ceramic sleeve 41 and the lower ceramic sleeve 42 are joined together to form a sealed chamber. A first locking component 43 is rotatably installed on the side of the upper ceramic sleeve 41 and the lower ceramic sleeve 42 away from the first fixing component 1, and a second locking component 44 is rotatably installed on the side of the upper ceramic sleeve 41 and the lower ceramic sleeve 42 close to the first fixing component 1. The two first locking components 43 are fixed together by screws, and the two second locking components 44 are also fixed together by screws. Multiple evenly distributed arc-shaped plates 411 are fixedly installed inside the sealed chamber formed by the upper ceramic sleeve 41 and the lower ceramic sleeve 42. The arc-shaped plates 411 are used to stir the molten liquid aluminum towards the center. Multiple evenly distributed cooling grooves are opened on the two second locking components 44.

[0051] The upper ceramic sleeve 41 and the lower ceramic sleeve 42 are made of glazed ceramic material. Ceramic can prevent heating by the induction coil 3, and ceramic is very resistant to high temperature and has high heat insulation properties. Therefore, the use of ceramic material can prevent the upper ceramic sleeve 41 and the lower ceramic sleeve 42 from being burned by the heated aluminum, and can also provide good heat insulation. In addition, the sealing of the upper ceramic sleeve 41 and the lower ceramic sleeve 42 can prevent the liquid aluminum from contacting the air and producing aluminum oxide, which will affect the conductivity in the later stage. Furthermore, glazing the upper ceramic sleeve 41 and the lower ceramic sleeve 42 can prevent the liquid aluminum from sticking to its surface after cooling in the later stage.

[0052] In use, the aluminum plate is located inside the sealed cavity formed by the upper ceramic sleeve 41 and the lower ceramic sleeve 42. The first locking member 43 and the second locking member 44 are used to increase the sealing and lock the upper ceramic sleeve 41 and the lower ceramic sleeve 42 so that they can rotate stably. The upper ceramic sleeve 41 and the lower ceramic sleeve 42 will be driven to rotate rapidly. Because the liquid aluminum will be stationary in the lower half of the sealed cavity under the action of gravity, when the upper ceramic sleeve 41 and the lower ceramic sleeve 42 rotate rapidly, because the liquid aluminum has the inertia to remain stationary, it will be thrown towards the center position by the high-speed rotating arc plate 411, that is, the liquid aluminum will be thrown towards the position of the steel wire strand, thereby increasing the adhesion between the liquid aluminum and the steel wire strand. As the upper ceramic sleeve 41 and the lower ceramic sleeve 42 gradually move, when the second locking member 44 passes through the coated area, because there is a cooling groove on its surface, it can quickly cool down the coated steel wire strand, realizing the rapid cooling and forming of the aluminum layer.

[0053] The movable component 5 includes a movable frame 51, through which a sliding rod 8 slides. A first side plate 52 is fixedly installed on the upper surface of the movable frame 51 near the first fixing member 1, and a second side plate 53 is fixedly installed on the upper surface of the movable frame 51 near the second fixing member 2. A connecting sleeve 532 is fixedly installed on the second side plate 53 near the first lead screw 7. The connecting sleeve 532 is rotatably installed outside one of the sliding sleeves 31. Semicircular brackets 531 are fixedly installed on both the first side plate 52 and the second side plate 53. Semicircular grooves corresponding to the semicircular brackets 531 are opened on both the two first locking members 43, and semicircular grooves corresponding to the semicircular brackets 531 are also opened on both the two second locking members 44. The semicircular brackets 531 are slidably locked inside the semicircular grooves. The first side plate 52 is close to the second side plate 53. A first gear set 54 is installed on one side of the plate 53, and a second gear set 55 is installed on the side of the second side plate 53 near the first side plate 52. A worm gear 511 is rotatably installed on the movable frame 51. A first worm wheel 512 meshes with the worm gear 511 between the first gear set 54 and the second gear set 55. A second worm wheel 513 meshes below the worm gear 511. The second worm wheel 513 is rotatably installed on the movable frame 51 via a bracket. The end of the third lead screw 72 near the first fixing member 1 is fixedly installed on the support frame 17 corresponding to the first fixing member 1. The end of the third lead screw 72 near the second fixing member 2 slides through the support frame 17 corresponding to the second fixing member 2. The second worm wheel 513 is threadedly fitted onto the outside of the third lead screw 72. A throttle 514 is fixedly installed on one end of the worm gear 511.

[0054] In use, turning the handle 514 drives the worm gear 511 to rotate, which in turn drives the first worm wheel 512 and the second worm wheel 513 to rotate. The rotation of the second worm wheel 513 moves along the surface of the third lead screw 72. The second worm wheel 513 is rotatably mounted on the moving frame 51, so it can drive the moving frame 51 to move. The slide bar 8 is used to stabilize the movement of the moving frame 51. When the first worm wheel 512 is working, it drives the first gear set 54 to work. When the first gear set 54 is working, it will cause the upper ceramic sleeve 41 and the lower ceramic sleeve 42 to rotate, thereby causing the moving part to move. When component 5 moves, it can drive the covering component 4 to rotate. Because the first locking component 43 and the second locking component 44 are both provided with semi-circular grooves, the two first locking components 43 and the two second locking components 44 can be combined into a whole annular groove after being spliced ​​together. Since the semi-circular bracket 531 is semi-circular, the first locking component 43 and the second locking component 44 can be stably supported by the semi-circular bracket 531 and will not fall out. When it is necessary to disassemble, simply loosen the screws on the two first locking components 43 and the two second locking components 44, and rotate the first locking component 43 and the second locking component 44 to remove them.

[0055] The first gear set 54 includes a first gear ring 541, which is rotatably mounted on a first side plate 52. A first sun gear 542 is located in the middle of the first gear ring 541 and is fixedly mounted on the first side plate 52. A first planetary carrier 543 is located on the side of the first gear ring 541 near the second gear set 55. Multiple first planetary gears are rotatably mounted on the first planetary carrier 543. The first planetary gears mesh with both the first gear ring 541 and the first sun gear 542. The first gear ring 541 is in close contact with the surface of the lower ceramic sleeve 42. The second gear set 55 includes... The first gear 551 is fixedly mounted on the second side plate 53. A second sun gear 552 is provided in the middle of the second gear 551. The second sun gear 552 is rotatably mounted on the second side plate 53. A second planetary carrier 553 is provided on the side of the second gear 551 near the first gear set 54. Multiple evenly distributed second planetary gears are rotatably mounted on the second planetary carrier 553. The second planetary gears mesh with the second gear 551 and the second sun gear 552. The first planetary carrier 543 and the second planetary carrier 553 are both fixedly mounted in the middle of the first worm gear 512.

[0056] When the first worm gear 512 is driven to rotate by the worm 511, it can drive both first planetary carriers 543 to rotate. Because the first sun gear 542 is fixedly mounted on the first side plate 52, when the first planetary carrier 543 drives the first planetary gear to rotate, it will cause the moving frame 51 to rotate with increased speed. When the second planetary carrier 553 is driven to rotate, because the second gear ring 551 is fixed on the second side plate 53, when the second planetary carrier 553 rotates, the second sun gear 552 will be driven to generate increased speed. The specific calculation methods for the two speed-increasing transmission ratios are as follows:

[0057]

[0058] Z R =Number of teeth on the gear ring, Z S = The number of teeth on the sun gear. When i>1, it indicates accelerated motion.

[0059] Because the first gear ring 541 is in close contact with the surfaces of the upper ceramic sleeve 41 and the lower ceramic sleeve 42, when the first gear ring 541 is driven to rotate, it will drive the upper ceramic sleeve 41 and the lower ceramic sleeve 42 to rotate at high speed. The force of the high-speed rotation makes the liquid aluminum better fit with the steel wire strand.

[0060] A first transmission wheel 533 is provided on the side of the second side plate 53 away from the first side plate 52. The first transmission wheel 533 is fixedly connected to the second sun gear 552. Multiple evenly distributed second transmission wheels 534 are rotatably mounted on the second side plate 53 via a bracket. The multiple second transmission wheels 534 and the first transmission wheel 533 are located on the same horizontal plane. The multiple second transmission wheels 534 and the first transmission wheel 533 are driven by a transmission belt 535. The winding component 6 includes a fixed bracket 61. A C-shaped slide rail 62 is fixedly mounted on the fixed bracket 61. A C-shaped wheel 63 is rotatably mounted on the side of the C-shaped slide rail 62 near the first fixing member 1. The transmission belt 535 drives the lower end of the C-shaped wheel 63. An insulating film roll 64 is detachably mounted on the side of the C-shaped wheel 63 away from the C-shaped slide rail 62.

[0061] When the second planetary carrier 553 is driven to rotate, because the second gear ring 551 is fixed, the second sun gear 552 will be driven to rotate at a faster speed. The second sun gear 552 will drive the first transmission wheel 533 to rotate. When the first transmission wheel 533 rotates, it will drive all the first transmission wheels 533 to rotate through the transmission belt 535. Because the transmission belt 535 is connected to the lower end of the C-shaped wheel 63, when the transmission belt 535 is driven, it will drive the C-shaped wheel 63 to rotate. There is a notch on the C-shaped wheel 63. During installation, the cable can enter the interior of the C-shaped wheel 63 through the notch. When the C-shaped wheel 63 rotates, the insulating film 64 will wrap the insulation layer around the surface of the cable. When the C-shaped wheel 63 is driven to rotate continuously, the transmission belt 535 can pass over the notch, so that it is driven to rotate stably.

[0062] A method for preparing a steel wire-clad aluminum layer using induction heating, employing an apparatus for preparing a steel wire-clad aluminum layer using induction heating, includes the following steps:

[0063] S1. Use a knife to remove the insulation layer around the damaged area, and then clean the area to be covered. Clean the area of ​​the steel wire to be covered to remove impurities and oxide layer.

[0064] S2. Aluminum sheet preparation: Clean the aluminum sheet to be coated to remove impurities and oxide layer, and evenly wrap the aluminum layer around the area to be coated by the steel wire.

[0065] S3. Clamping preparation: First, open the first fixing part 1 and the second fixing part 2. Clamp the steel wire wrapped with aluminum layer using the upper ceramic sleeve 41 and the lower ceramic sleeve 42. Then, tighten the screws on the first locking part 43 and the second locking part 44. The patterns on the first locking part 43 and the second locking part 44 can match the steel wire strand to clamp the exposed steel wire strand. At this time, the upper ceramic sleeve 41 and the lower ceramic sleeve 42 are locked to form a sealed chamber. Then, close the first fixing part 1 and the second fixing part 2.

[0066] S4. Induction pressure coating: The clamped sample will be in the induction coil 3. The induction heating mold will reach the hot melting temperature. At this time, the moving part 5 will drive the upper ceramic sleeve 41 and the lower ceramic sleeve 42 to rotate rapidly. When rotating, the moving part 5 can also drive the induction coil 3, the coating part 4, and the winding part 6 to move at a constant speed on the slide bar 8. When the two first locking parts 43 and the two second locking parts 44 are driven to move forward at a constant speed, they can also rotate slowly with the pattern of the steel wire strand.

[0067] S5. After coating, the sample is processed. During the movement, the cooling grooves on the two second locking parts 44 can quickly cool the aluminum layer to form armor, and can be pressed by the two second locking parts 44 onto the surface of the steel wire strand to form a uniform armor layer.

[0068] S6. When moving at a constant speed, the winding component 6 can insulate the already armored area by winding an insulating layer on its surface, thereby completing the overall maintenance work.

[0069] S7. Data processing: After the test, the resistance value of the tested sample is directly output. Since the length of the tested sample is different, it affects the comparison of the steel wire performance. The resistance values ​​of all steel wires are uniformly converted to the resistance under a length of 1 meter as shown in formula (1). The measured resistance is converted to conductivity as shown in formula (2) to complete the measurement work and ensure that the resistance value after repair meets the standard.

[0070] (1)

[0071] (2)

[0072] In the formula: σ is conductivity, ρ is resistivity, L is the actual measured length of the steel wire, R is the resistance value, and A is the cross-sectional area of ​​the steel wire.

[0073] In this embodiment, the cleaning method for the aluminum-clad steel wire covering area in step S1 is to clean the area to be covered with aluminum-clad steel wire using acetone solution, then clean it with deionized water, then blow it dry, and then use sandpaper to finely polish the area to be welded.

[0074] In this embodiment, the cleaning method of the aluminum sheet in step S2 is as follows: soak it in acetone solution for 2 minutes, then wash it with deionized water, then place it in NaOH solution (15wt%) for alkali washing for 2 minutes, then place it in HNO3 solution (25wt%) for acid washing for 5 minutes, then wash it with plasma water and blow it dry, and then store it in an oxygen-free and dry environment to prevent it from being oxidized during transportation.

[0075] In this embodiment, in step S6, the conductivity of the coated aluminum-coated steel wire is 7.3% less than the original conductivity of the aluminum-coated steel wire, which is within 10%.

[0076] Comparison of conductivity properties between aluminum-clad steel wire base material and coated sample

[0077]

[0078] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An apparatus for preparing a steel wire-clad aluminum layer using induction heating, comprising a first fixing member (1), characterized in that: A second fixing member (2) is provided on one side of the first fixing member (1), and an induction coil (3) for heating is provided between the first fixing member (1) and the second fixing member (2). A covering component (4) for covering the steel wire strand with an aluminum layer is provided in the middle of the induction coil (3). A moving component (5) is installed below the covering component (4). A first lead screw (7) and a second lead screw (71) symmetrically arranged are provided at the upper middle position between the first fixing member (1) and the second fixing member (2). The first fixing member (1) and the second fixing member (2) both include an upper fixing frame (11). The lower fixing frame (12) is symmetrical to itself. The upper fixing frame (11) is fixedly installed with a first connecting frame (13) and a second connecting frame (14) on both sides respectively. The lower fixing frame (12) is fixedly installed with a third connecting frame (15) on the side corresponding to the first connecting frame (13). The lower fixing frame (12) is fixedly installed with a fourth connecting frame (16) on the side corresponding to the second connecting frame (14). The first connecting frame (13) and the third connecting frame (15) are hinged together.

2. A device for preparing steel wire covered with aluminum layer by induction heating according to claim 1, characterized in that: The first lead screw (7) is rotatably mounted at the hinge of the first connecting frame (13) and the third connecting frame (15) on the first fixing member (1) at one end close to the first fixing member (1). The first lead screw (7) is threadedly engaged at the hinge of the first connecting frame (13) and the third connecting frame (15) on the second fixing member (2). The second lead screw (71) is rotatably mounted at the second connecting frame (14) on the first fixing member (1) at one end close to the first fixing member (1). The second lead screw (71) is threadedly engaged at the middle of the second connecting frame (14) on the second fixing member (2). Multiple evenly distributed sliding rods (8) are provided at the lower middle position of the first fixing member (1) and the second fixing member (2). A support frame (17) is fixedly installed at the bottom end of the lower fixing frame (12). The end of the sliding rod (8) near the first fixing member (1) is fixedly installed on the support frame (17) corresponding to the first fixing member (1). The end of the sliding rod (8) near the second fixing member (2) slides through the lower end of the support frame (17) corresponding to the second fixing member (2). Multiple evenly distributed first screws (111) are rotatably installed on the upper fixing frame (11), and multiple evenly distributed second screws are rotatably installed on the lower fixing frame (12). (121) A Z-shaped cut is formed between the first screw (111) and the corresponding second screw (121). An upper fixing plate (112) is provided below the upper fixing frame (11). Multiple upper fixing frames (11) are threaded onto the upper fixing plate (112). A lower fixing plate (122) is provided above the lower fixing frame (12). Multiple second screws (121) are threaded onto the lower fixing plate (122). Multiple evenly distributed spherical protrusions (141) are provided on both sides of the second connecting frame (14). A groove corresponding to the second connecting frame (14) is opened on the inner side of the fourth connecting frame (16).

3. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 2, characterized in that: The covering component (4) includes an upper ceramic sleeve (41), and a lower ceramic sleeve (42) is provided symmetrically below the upper ceramic sleeve (41). The upper ceramic sleeve (41) and the lower ceramic sleeve (42) are spliced ​​together to form a sealed chamber. A first locking component (43) is rotatably installed on the side of the upper ceramic sleeve (41) and the lower ceramic sleeve (42) away from the first fixing component (1). A second locking component (44) is rotatably installed on the side of the upper ceramic sleeve (41) and the lower ceramic sleeve (42) close to the first fixing component (1). The two first locking components (43) are fixed together by screws, and the two second locking components (44) are also fixed together by screws. Multiple evenly distributed arc plates (411) are fixedly installed inside the sealed chamber formed by the upper ceramic sleeve (41) and the lower ceramic sleeve (42). The arc plates (411) are used to stir the molten liquid aluminum towards the center.

4. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 3, characterized in that: The movable component (5) includes a movable frame (51), and a sliding rod (8) slides through the movable frame (51). A first side plate (52) is fixedly installed on the upper surface of the movable frame (51) near the first fixing member (1), and a second side plate (53) is fixedly installed on the upper surface of the movable frame (51) near the second fixing member (2). A semi-circular bracket (531) is fixedly installed on both the first side plate (52) and the second side plate (53). A semi-circular groove corresponding to the semi-circular bracket (531) is opened on both of the first locking members (43), and a semi-circular groove corresponding to the semi-circular bracket (531) is also opened on both of the second locking members (44). The semicircular bracket (531) corresponds to the semicircular groove. The semicircular bracket (531) is slidably locked inside the semicircular groove. The first side plate (52) is equipped with a first gear set (54) on the side close to the second side plate (53). The second side plate (53) is equipped with a second gear set (55) on the side close to the first side plate (52). A worm gear (511) is rotatably mounted on the movable frame (51). A first worm wheel (512) meshing with the worm gear (511) is provided between the first gear set (54) and the second gear set (55). Multiple evenly distributed cooling grooves are opened on both of the second locking parts (44).

5. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 4, characterized in that: The first gear set (54) includes a first gear ring (541), which is rotatably mounted on a first side plate (52). A first sun gear (542) is provided in the middle of the first gear ring (541), and the first sun gear (542) is fixedly mounted on the first side plate (52). A first planetary carrier (543) is provided on the side of the first gear ring (541) near the second gear set (55). Multiple first planetary gears are rotatably mounted on the first planetary carrier (543). The first planetary gears mesh with the first gear ring (541) and the first sun gear (542). The first gear ring (541) is in close contact with the surface of the lower ceramic sleeve (42). The second gear set (55) includes a first gear ring (541), which is rotatably mounted on a first side plate (52). 5) Includes a second gear ring (551), which is fixedly mounted on the second side plate (53). A second sun gear (552) is provided in the middle of the second gear ring (551). The second sun gear (552) is rotatably mounted on the second side plate (53). A second planetary carrier (553) is provided on the side of the second gear ring (551) near the first gear set (54). Multiple evenly distributed second planetary gears are rotatably mounted on the second planetary carrier (553). The second planetary gears mesh with the second gear ring (551) and the second sun gear (552). The first planetary carrier (543) and the second planetary carrier (553) are both fixedly mounted in the middle of the first worm gear (512).

6. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 5, characterized in that: Two symmetrical sliding sleeves (31) are fixedly installed on the induction coil (3). The two sliding sleeves (31) are respectively sleeved on the outside of the corresponding first lead screw (7) and second lead screw (71). A connecting sleeve (532) is fixedly installed on the side of the second side plate (53) near the first lead screw (7). The connecting sleeve (532) is rotatably installed on the outside of one of the sliding sleeves (31).

7. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 6, characterized in that: The second side plate (53) is provided with a first transmission wheel (533) on the side away from the first side plate (52). The first transmission wheel (533) is fixedly connected to the second sun gear (552). Multiple evenly distributed second transmission wheels (534) are rotatably mounted on the second side plate (53) through a bracket. The multiple second transmission wheels (534) and the first transmission wheel (533) are located on the same horizontal plane. The multiple second transmission wheels (534) and the first transmission wheel (533) are driven by a transmission belt (535).

8. A device for preparing a steel wire covered with aluminum layer by induction heating according to claim 7, characterized in that: The covering component (4) has a winding component (6) for wrapping the insulating layer on the side near the first fixing member (1). The winding component (6) includes a fixing bracket (61). A C-shaped slide rail (62) is fixedly installed on the fixing bracket (61). A C-shaped wheel (63) is rotatably installed on the side of the C-shaped slide rail (62) near the first fixing member (1). The transmission belt (535) drives the lower end of the C-shaped wheel (63). An insulating film roll (64) is detachably installed on the side of the C-shaped wheel (63) away from the C-shaped slide rail (62).

9. The apparatus for preparing a steel wire-clad aluminum layer by induction heating according to claim 8, characterized in that: The worm (511) is meshed with a second worm wheel (513) below it. The second worm wheel (513) is rotatably mounted on the movable frame (51) via a bracket. A third lead screw (72) is provided between the first fixing member (1) and the second fixing member (2). The end of the third lead screw (72) near the first fixing member (1) is fixedly mounted on the support frame (17) corresponding to the first fixing member (1). The end of the third lead screw (72) near the second fixing member (2) slides through the support frame (17) corresponding to the second fixing member (2). The second worm wheel (513) is threaded and sleeved on the outside of the third lead screw (72). A throttle (514) is fixedly mounted on one end of the worm (511).

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