High-voltage and variable-frequency resistant submersible motor winding wire and its manufacturing process

Abstract

The present invention provides a high-voltage, variable-frequency-resistant submersible motor winding wire and a manufacturing process thereof, relating to the technical field of high-voltage motor winding wire. The winding wire comprises a stranded conductor formed by twisting together several copper conductors, with a cross-linked polyethylene layer extruded around the conductor's periphery. The cross-linked polyethylene layer is wrapped around the conductor's periphery with a film layer comprising a corona-resistant film and a polyimide film, the corona-resistant film and the polyimide film being cross-wound around the cross-linked polyethylene layer. The film layer is provided with a nylon sheath layer around the conductor's periphery. The present invention effectively improves the mechanical properties of the winding wire through the insulation layer formed of cross-linked polyethylene, thereby improving insulation. Furthermore, the provision of the corona-resistant film, polyimide film, and nylon sheath layer effectively mitigates the effects of high voltage and variable frequency on the winding wire. The winding wire has a maximum operating temperature of 130°C and a load-bearing voltage of 10 kV. The winding wire can operate normally under high voltage for a long time, with stable transmission and excellent performance.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage motor winding wires, in particular to a manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wires. Background Art

[0002] Submersible motors are used as a supporting component for various types of submersible pumps. They are integrated with the pumps and can be submerged in sewage of various water qualities for a long time. The winding wire of the submersible motor is the core component of the submersible motor. It is mainly used in agricultural water conservancy, urban water supply and drainage, industrial water supply and drainage, mine drainage and emergency rescue, medical equipment, offshore platforms and other fields.

[0003] At present, most submersible motor winding wires on the market use polyethylene (PE) as the insulation layer and polyamide (PA) as the sheath layer. However, the operating voltage of this type of winding wire cannot exceed 1KV, and the operating temperature cannot exceed 80°C. The service life is short. Under high voltage and high temperature conditions, the mechanical properties and transmission performance of the winding wire will be affected, resulting in abnormal transmission signals and unable to meet the requirements of long-term operation under high voltage. Summary of the Invention

[0004] The present invention provides a manufacturing process for a high-voltage and variable-frequency resistant submersible motor winding wire to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a high-voltage and variable-frequency resistant submersible motor winding wire, which includes a stranded conductor formed by twisting a plurality of copper wires. A cross-linked polyethylene layer is extruded around the stranded conductor, and a film layer is wrapped around the cross-linked polyethylene layer. The film layer includes a corona-resistant film and a polyimide film. The corona-resistant film and the polyimide film are cross-wound on the cross-linked polyethylene layer, and a nylon sheath layer is provided around the film layer.

[0006] Preferably, there are at least 37 copper wires; and two layers of the corona-resistant film and the polyimide film are provided.

[0007] Preferably, the thickness of the cross-linked polyethylene layer is 1-1.5 mm.

[0008] Preferably, the thickness of the film layer is 0.7-1.2 mm.

[0009] Preferably, a manufacturing process for a high-voltage-resistant and variable-frequency-resistant submersible motor winding wire is used to manufacture the high-voltage-resistant and variable-frequency-resistant submersible motor winding wire as described above, characterized in that it comprises the following steps:

[0010] S1: twisting several copper wires to form a stranded conductor;

[0011] S2: passing the stranded conductor through a cable extruder assembly to form a cross-linked polyethylene layer on the stranded conductor;

[0012] S3: Wrapping a corona-resistant film and a polyimide film in a cross-shaped state on the cross-linked polyethylene layer, and then sintering the corona-resistant film and the polyimide film to form a film layer;

[0013] S4: A nylon sheath is provided on the film layer to form a winding wire.

[0014] Preferably, in step S2, the cable extruder assembly includes a base plate, a melting and mixing box is provided on the base plate, an output pipe is connected through the melting and mixing box, the other end of the output pipe is connected through the extrusion box, an extrusion head is connected through the extrusion box, the stranded conductor passes through the extrusion head, and a cooling box and a winding reel are also provided on the base plate.

[0015] Preferably, a front-to-back symmetrical fixing rod is fixedly provided at the lower end of the cooling box, a lifting plate is slidably provided on the fixing rod, a spring 1 is sleeved on the fixing rod, one end of the spring 1 is fixedly connected to the lifting plate, and the other end of the spring 1 is fixedly connected to the cooling box, a vertical rod 1 is fixedly provided on the lifting plate symmetrically, a front-to-back symmetrical trapezoidal plate is provided on the bottom plate, a matching block is fixedly connected to the left side of the trapezoidal plate, a cam is abutted on the side where the matching blocks are close to each other, the cam is rotatably connected to the bottom plate, an L-shaped connecting rod is also fixedly provided on the bottom plate, a driving motor is fixedly provided on the L-shaped connecting rod, the lower output end of the driving motor is fixedly connected to the cam, and a spring 2 is fixedly provided on the side where the trapezoidal plates are close to each other.

[0016] Preferably, a partition plate is provided in the cooling box, which divides the cooling box into a water tank and a dry box, and a rotating shaft is rotatably connected to the front and rear side walls of the water tank, and a stirring blade is fixedly provided on the side where the rotating shafts are close to each other, and a gear 1 is fixedly provided on the side where the rotating shafts are away from each other, and a rack 1 is provided on the vertical rod 1, and the rack 1 cooperates with the gear 1; a rotating rod is symmetrically connected to the upper surface of the water tank for rotation front and back, and the upper end of the rotating rod is fixedly connected to the gear 2, and a number of stirring rods are provided on the rotating rod, and the upper end of the vertical rod 1 is fixedly connected to the matching head, and a tooth plate is symmetrically slidably provided on the upper surface of the water tank front and back, and the tooth plate cooperates with the gear 2, and a moving rod is fixedly provided on the tooth plate, and a round head is provided on the end where the moving rods are away from each other, and the round head cooperates with the matching head, and a front and rear symmetrical fixed block is fixedly provided on the upper surface of the water tank, and a spring three is fixedly provided on the side where the fixed blocks are close to each other, and the side where the spring three are close to each other is fixedly connected to the tooth plate, and a number of semiconductor refrigeration plates are also provided in the water tank.

[0017] Preferably, a fan casing is installed on the dry box, the fan casing is connected to the dry box, a fan is arranged in the fan casing, a filter is installed on the upper surface of the fan casing, and connecting pipelines are passed through the front and rear side walls of the fan casing; the front and rear sides of the dry box are rotatably connected through a hollow shaft, and the sides of the hollow shafts close to each other are connected through an air plate, the pipeline is rotatably connected to the hollow shaft, a number of air holes are provided on the air plate, and a gear three is also fixedly provided on the hollow shaft, and a vertical rod two is fixedly provided symmetrically on the front and rear of the lifting plate, a rack two is provided on the vertical rod two, and the rack two cooperates with the gear three.

[0018] Preferably, connecting rods are fixedly provided symmetrically in the upper and lower parts of the dry box, and an arc-shaped sponge strip is fixedly provided on the side where the connecting rods are close to each other; a transfer box is fixedly provided on the lower surface of the dry box, a push plate is slidingly provided in the transfer box, a push rod is fixedly provided at the lower end of the push plate, the push rod slides downward and extends out of the transfer box, the lower end of the push rod is fixedly connected to the lifting plate, and a pipe is also connected to the transfer box, and the pipe is connected to the lower surface of the water tank; a water pushing rod is also fixedly provided on the lifting plate, which is symmetrical front and back, and the water pushing rod extends upward into the water tank, and a water pushing plate is fixedly provided on the water pushing rod.

[0019] Compared with the prior art, the present invention provides a high-voltage-resistant and variable-frequency-resistant submersible motor winding wire and its manufacturing process. The insulating layer formed by cross-linked polyethylene effectively improves the mechanical properties of the winding wire and has better insulation. In addition, the provision of a corona-resistant film, a polyimide film and a nylon sheath layer can effectively avoid the effects of high voltage, high temperature and variable frequency on the winding wire. The maximum operating temperature can reach 130°C, the load-bearing voltage can reach 10KV, and it can work normally under high voltage for a long time, with stable transmission and good performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] In the attached figure:

[0022] Figure 1 is a schematic structural diagram of the winding wire of the present invention;

[0023] Figure 2 Schematic diagram of winding the corona-resistant film and the polyimide film of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the cable extruder assembly of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the melting and mixing box of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the cooling box of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the water tank of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the dry box of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the transfer box of the present invention.

[0030] Figure: 1. Copper conductor; 2. Cross-linked polyethylene layer; 3. Film layer; 4. Nylon sheath layer; 5. Corona-resistant film; 6. Polyimide film; 7. Power supply; 8. Feed hopper; 9. Melt mixing box; 10. Output pipe; 11. Cutting blade; 12. Extrusion box; 13. Mixing blade; 14. Power shaft; 15. Heating wire; 16. Extrusion head; 17. Cooling box; 18. Bottom plate; 19. Winding reel; 20. Spiral blade; 21. L-shaped connecting rod; 22. Drive motor; 23. Fixing block; 24. Second spring; 25. Second gear; 26. Lifting plate; 27. Filter; 28. Second vertical rod. 29. Partition plate; 30. Vertical rod one; 31. Trapezoidal plate; 32. Matching block; 33. Cam; 34. Gear one; 35. Fixed rod; 36. Spring one; 37. Transfer box; 38. Air plate; 39. Arc sponge strip; 40. Connecting rod; 41. Pipeline; 42. Air hole; 43. Fan; 44. Fan housing; 45. Gear three; 46. Push rod; 47. Pipeline; 48. Water push rod; 49. Semiconductor cooling plate; 50. Matching head; 51. Stirring blade; 52. Rotating rod; 53. Push plate; 54. Water push plate; 55. Stirring rod; 56. Moving rod; 57. Spring three; 58. Round head. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] Example 1

[0035] The embodiment of the present invention provides a high voltage resistant and variable frequency resistant submersible motor winding wire, such as Figure 1-2 As shown, the stranded conductor comprises a plurality of copper wires 1 twisted together, a cross-linked polyethylene layer 2 is extruded around the stranded conductor, the cross-linked polyethylene layer 2 is wrapped around the film layer 3, the film layer 3 comprises a corona-resistant film 5 and a polyimide film 6, the corona-resistant film 5 and the polyimide film 6 are cross-wound on the cross-linked polyethylene layer 2, and a nylon sheath layer 4 is provided around the film layer 3.

[0036] The working principle and beneficial effects of the above technical solution are as follows: a number of copper wires 1 are twisted to form a twisted conductor, a cross-linked polyethylene layer 2 is extruded around the twisted conductor, a corona-resistant film 5 and a polyimide film 6 are wrapped around the cross-linked polyethylene layer 2, and then the corona-resistant film 5 and the polyimide film 6 are sintered to form a film layer 3, and a nylon sheath layer 4 is provided on the film layer 3; the insulating layer formed by the cross-linked polyethylene effectively improves the mechanical properties of the winding wire and improves the insulation performance. In addition, the provision of the corona-resistant film 5, the polyimide film 6 and the nylon sheath layer 4 can effectively avoid the influence of high voltage, high temperature and frequency conversion on the winding wire. The maximum operating temperature can reach 130°C, and the load-bearing voltage can reach 10KV. It can work normally under high voltage for a long time, with stable transmission and good performance.

[0037] Example 2

[0038] On the basis of the above embodiment 1, Figure 1-2 As shown, there are at least 37 copper wires 1; and the corona-resistant film 5 and the polyimide film 6 are both provided with two layers.

[0039] Preferably, the thickness of the cross-linked polyethylene layer 2 is 1-1.5 mm.

[0040] Preferably, the thickness of the film layer 3 is 0.7-1.2 mm.

[0041] The beneficial effects of the above technical solution are as follows: by setting more than 37 copper wires 1, the transmission performance of high voltage electricity can be effectively guaranteed. In addition, two layers of corona-resistant film 5 and polyimide film 6 are set (corona-resistant film 5-polyimide film 6-corona-resistant film 5-polyimide film 6 are alternately wound on the cross-linked polyethylene layer 2), and the thickness of the cross-linked polyethylene layer 2 and the film layer 3 is limited. While ensuring that the winding wire is resistant to high voltage and frequency conversion, the cost is reduced as much as possible, and it is more practical and more economical.

[0042] Example 3

[0043] This embodiment provides a manufacturing process for high-voltage and variable-frequency submersible motor winding wires, which is used to manufacture the high-voltage and variable-frequency submersible motor winding wires described above. Figure 1-8 As shown, the following steps are included:

[0044] S1: twisting a plurality of copper wires 1 to form a stranded conductor;

[0045] S2: passing the stranded conductor through a cable extruder assembly to form a cross-linked polyethylene layer 2 on the stranded conductor;

[0046] S3: Wrapping the cross-linked polyethylene layer 2 with a corona-resistant film 5 and a polyimide film 6 in a cross-shaped state, and then sintering the corona-resistant film 5 and the polyimide film 6 to form a film layer 3;

[0047] S4: A nylon sheath is provided on the film layer 3 to prepare a winding wire.

[0048] The working principle and beneficial effects of the above technical solution are as follows: first, a plurality of copper wires 1 are twisted to form a twisted conductor; second, the twisted conductor is passed through a cable extruder assembly to form a cross-linked polyethylene layer 2 on the twisted conductor; third, a corona-resistant film 5 and a polyimide film 6 are wrapped in a cross-state on the cross-linked polyethylene layer 2, and then the corona-resistant film 5 and the polyimide film 6 are sintered to form a film layer 3; fourth, a nylon sheath is provided on the film layer 3 to make a winding wire; the insulating layer formed by the cross-linked polyethylene effectively improves the mechanical properties and insulation properties of the winding wire. In addition, the provision of the corona-resistant film 5, the polyimide film 6 and the nylon sheath layer 4 can effectively avoid the influence of high voltage, high temperature and frequency conversion on the winding wire. The maximum operating temperature can reach 130°C, and the carrying voltage can reach 10KV. It can work normally under high voltage for a long time, with stable transmission and good performance.

[0049] Example 4

[0050] On the basis of the above embodiment 4, Figure 3-4As shown, in step S2, the cable extruder assembly includes a base plate 18, a melting and mixing box 9 is provided on the base plate 18, an output pipe 10 is connected through the melting and mixing box 9, the other end of the output pipe 10 is connected through the extrusion box 12, an extrusion head 16 is connected through the extrusion box 12, and the stranded conductor passes through the extrusion head 16. A cooling box 17 and a winding reel 19 are also provided on the base plate 18.

[0051] Among them, a feeding funnel 8 is installed through the melting and mixing box 9, and a mixing device is provided in the feeding funnel 8. The right end of the melting and mixing box 9 is fixedly connected to the power motor 7, and the output end of the power motor 7 is fixedly connected to the power shaft 14. The power shaft 14 rotates and extends into the melting and mixing box 9. Spiral blades 20 are fixedly provided symmetrically on the left and right of the power shaft 14. Several mixing blades 13 and several cutting blades 11 are also provided on the power shaft 14. The melting and mixing box 9 also has a built-in heating wire 15.

[0052] The working principle and beneficial effects of the above technical solution are as follows: first, cross-linked polyethylene particles (if other plastic particles need to be added, it is determined by the technical personnel in this field) are put into the feeding funnel 8, and after being evenly mixed by the mixing device in the feeding funnel 8, they enter the melting and mixing box 9. The spiral blades 20 will continuously give the cross-linked polyethylene particles a leftward force. With the continuous heating of the heating wire 15 and the cutting and mixing of the plurality of mixing blades 13 and the plurality of cutting blades 11, the finally dissolved cross-linked polyethylene enters the extrusion box 12 through the output pipe 10, and then enters the extrusion head 16. The stranded conductor passes through the extrusion head 16, and the cross-linked polyethylene is extruded on the stranded conductor. Then, after passing through the cooling box 17, it is wound on the winding reel 19; by adopting the above steps, the cross-linked polyethylene particles can be quickly melted and extruded on the stranded conductor. The structure is simple, the steps are clear, and the practicality of the device is effectively improved. Moreover, through the plurality of mixing blades 13, the plurality of cutting blades 11 and the two spiral blades 20, the dissolution and transportation of the cross-linked polyethylene particles can be quickly completed, and the functionality is strong.

[0053] Example 5

[0054] On the basis of the above embodiment 4, Figure 5-8As shown, the lower end of the cooling box 17 is fixedly provided with a front-to-back symmetrical fixing rod 35, and a lifting plate 26 is slidably provided on the fixing rod 35, and a spring 1 36 is sleeved on the fixing rod 35, one end of the spring 1 36 is fixedly connected to the lifting plate 26, and the other end of the spring 1 36 is fixedly connected to the cooling box 17, and a vertical rod 1 30 is fixedly provided on the lifting plate 26, and a front-to-back symmetrical trapezoidal plate 31 is provided on the bottom plate 18, and a matching block 32 is fixedly connected to the left side of the trapezoidal plate 31, and a cam 33 is abutted on the side where the matching blocks 32 are close to each other, and the cam 33 is rotatably connected to the bottom plate 18, and an L-shaped connecting rod 21 is also fixedly provided on the bottom plate 18, and a driving motor 22 is fixedly provided on the L-shaped connecting rod 21, and the lower output end of the driving motor 22 is fixedly connected to the cam 33, and a spring 24 is fixedly provided on the side where the trapezoidal plates 31 are close to each other.

[0055] Among them, preferably, a partition plate 29 is provided in the cooling box 17, and the partition plate 29 divides the cooling box 17 into a water tank and a dry box. The front and rear side walls of the water tank are rotatably connected with a rotating shaft, and a stirring blade 51 is fixedly provided on the side where the rotating shafts are close to each other, and a gear 34 is fixedly provided on the side where the rotating shafts are away from each other. A rack 1 is provided on the vertical rod 30, and the rack 1 cooperates with the gear 34; a rotating rod 52 is symmetrically connected to the front and rear surface of the water tank, and the upper end of the rotating rod 52 is fixedly connected to the gear 2 25, and a plurality of stirring rods 5 are provided on the rotating rod 52. 5. The upper end of the vertical rod 30 is fixedly connected to the matching head 50. A tooth plate is symmetrically slidably provided on the upper surface of the water tank. The tooth plate cooperates with the gear 2 25. A moving rod 56 is fixedly provided on the tooth plate. A round head 58 is provided at one end of the moving rod 56 that is away from each other. The round head 58 cooperates with the matching head 50. A front-to-back symmetrical fixed block 23 is fixedly provided on the upper surface of the water tank. A spring three 57 is fixedly provided on the side of the fixed block 23 that is close to each other. The side of the spring three 57 that is close to each other is fixedly connected to the tooth plate. A number of semiconductor cooling plates 49 are also provided in the water tank.

[0056] The cooling box 17 has holes on both sides, and sealing members are provided at the holes.

[0057] The working principle and beneficial effects of the above technical solution are as follows: the extruded stranded conductor enters the cooling box 17, the drive motor 22 is started, the drive motor 22 drives the cam 33 to rotate, the cam 33 is constantly in contact with the matching block 32, and under the action of the spring 24, the trapezoidal plate 31 continuously moves toward or in the opposite direction. When the trapezoidal plates 31 move toward each other, the trapezoidal plate 31 drives the lifting plate 26 to move upward, the lifting plate 26 drives the vertical rod 1 30 to move upward, the rack 1 on the vertical rod 1 30 drives the gear 1 34 to rotate, the gear 1 34 drives the rotating shaft and the stirring blade 51 to rotate, thereby stirring the water in the water tank, so that the cooling effect of the semiconductor refrigeration plate 49 can be better transmitted to various positions in the water tank;

[0058] When the vertical rod 1 30 moves upward, the vertical rod 1 30 drives the matching head 50 to move upward, and the matching head 50 squeezes the round head 58, so that the round heads 58 move toward each other, and the round head 58 drives the moving rod 56 to move toward each other, and the moving rod 56 drives the toothed plate to move toward each other, and the toothed plate drives the gear 2 25 to rotate, and the gear 2 25 drives the rotating rod 52 to rotate, and the rotating rod 52 drives the several stirring rods 55 to rotate, thereby stirring the water in the water tank. Similarly, after the vertical rod 1 30 is reset, it still does not affect the stirring of the stirring blade 51 and the stirring rod 55; and in the process of 51 stirring vertically, 55 stirs horizontally at the same time, so that the mixing effect of the water in the entire water tank is better, the temperature is kept more stable, and the practicality and functionality of the device are effectively improved.

[0059] Example 6

[0060] On the basis of the above embodiment 5, Figure 5-8 As shown, a fan casing 44 is installed on the dry box, and the fan casing 44 is connected to the dry box. A fan 43 is arranged in the fan casing 44, and a filter 27 is installed on the upper surface of the fan casing 44. A connecting pipe 41 is passed through the front and rear side walls of the fan casing 44; the front and rear sides of the dry box are rotatably connected through a hollow shaft, and the side of the hollow shaft close to each other is connected through an air plate 38, and the pipe 41 is rotatably connected to the hollow shaft. A number of air holes 42 are provided on the air plate 38, and a gear three 45 is also fixedly provided on the hollow shaft, and a vertical rod two 28 is fixedly provided symmetrically on the front and rear of the lifting plate 26, and a rack two is provided on the vertical rod two 28, and the rack two cooperates with the gear three 45.

[0061] Among them, preferably, connecting rods 40 are fixedly provided symmetrically in the upper and lower parts of the dry box, and an arc-shaped sponge strip 39 is fixedly provided on the side where the connecting rods 40 are close to each other; a transfer box 37 is fixedly provided on the lower surface of the dry box, and a push plate 53 is slidingly provided in the transfer box 37, and a push rod 46 is fixedly provided at the lower end of the push plate 53, and the push rod 46 slides downward and extends out of the transfer box 37, and the lower end of the push rod 46 is fixedly connected to the lifting plate 26, and the transfer box 37 is also connected with a pipe 47, and the pipe 47 is connected with the lower surface of the water tank; the lifting plate 26 is also fixed with a front-to-back symmetrical water pushing rod 48, which extends upward into the water tank, and a water pushing plate 54 is fixed on the water pushing rod 48.

[0062] A one-way valve is provided at the connecting position between the transfer box 37 and the dry box, and a one-way valve is also provided in the pipeline 47 .

[0063] The working principle and beneficial effects of the above technical solution are as follows: after the driving motor 22 is started, the fan 43 is started at the same time, and the fan 43 blows out air, which will blow towards the extruded twisted conductor. At the same time, the air will pass through the pipe 41 and the air plate 38, and then be sprayed onto the extruded twisted conductor from the plurality of air holes 42, thereby blowing the water on the extruded twisted conductor and blowing the water off from three directions. In addition, when the extruded twisted conductor passes through the drying box, the arc-shaped sponge strip 39 will also wipe the extruded twisted conductor; at the same time, during the rising process of the lifting plate 26, the lifting plate 26 will drive the vertical rod 28 to rise, the rack 2 on the vertical rod 28 will drive the gear 2 and gear 3 45 to rotate, the gear 3 45 will drive the hollow shaft to rotate, and the hollow shaft will drive the air plate 38 to rotate, so that the angle and range of the air ejected from the plurality of air holes 42 will be larger, and the water blowing effect will be better;

[0064] When the lifting plate 26 descends, the lifting plate 26 drives the push rod 46 to descend, and the push rod 46 drives the push plate 53 to suck the water in the dry box into the transfer box 37. When the lifting plate 26 rises, the push rod 46 drives the push plate 53 to transfer the water in the transfer box 37 into the water tank through the pipe 47, thereby effectively reducing water waste; and through the cooperation of the trapezoidal plate 31 and the lifting plate 26, the vertical rod 1 30 and the vertical rod 2 28 rise, thereby realizing water stirring and multi-angle injection of gas, and at the same time realizing water transfer, reducing water use, and the whole structure has a higher degree of coordination, stronger practicality, and better economy.

[0065] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A manufacturing process for high-voltage and variable-frequency submersible motor winding wire, characterized in that: The submersible motor winding wire comprises a stranded conductor formed by twisting a plurality of copper conductors (1), a cross-linked polyethylene layer (2) is extruded on the circumference of the stranded conductor, a film layer (3) is wrapped around the circumference of the cross-linked polyethylene layer (2), the film layer (3) comprises a corona-resistant film (5) and a polyimide film (6), the corona-resistant film (5) and the polyimide film (6) are cross-wound on the cross-linked polyethylene layer (2), and a nylon sheath layer (4) is provided on the circumference of the film layer (3); The manufacturing process includes the following steps: S1: twisting a plurality of copper wires (1) to form a stranded conductor; S2: passing the stranded conductor through a cable extruder assembly to form a cross-linked polyethylene layer (2) on the stranded conductor; S3: Wrapping the cross-linked polyethylene layer (2) with a corona-resistant film (5) and a polyimide film (6) in a cross-shaped state, and then sintering the corona-resistant film (5) and the polyimide film (6) to form a film layer (3); S4: providing a nylon sheath on the film layer (3) to form a winding wire; In step S2, the cable extruder assembly includes a base plate (18), a melting and mixing box (9) is provided on the base plate (18), an output pipe (10) is connected to the melting and mixing box (9), the other end of the output pipe (10) is connected to the extrusion box (12), an extrusion head (16) is connected to the extrusion box (12), and the stranded conductor passes through the extrusion head (16). A cooling box (17) and a winding reel (19) are also provided on the base plate (18); A front-to-back symmetrical fixed rod (35) is fixedly provided at the lower end of the cooling box (17), a lifting plate (26) is slidably provided on the fixed rod (35), a spring (36) is sleeved on the fixed rod (35), one end of the spring (36) is fixedly connected to the lifting plate (26), and the other end of the spring (36) is fixedly connected to the cooling box (17), a vertical rod (30) is fixedly provided on the lifting plate (26) in a front-to-back symmetrical manner, and a trapezoidal plate (31) is provided on the bottom plate (18) The left side of the trapezoidal plate (31) is fixedly connected with a matching block (32), and a cam (33) is abutted on the side of the matching blocks (32) that are close to each other. The cam (33) is rotatably connected to the base plate (18). An L-shaped connecting rod (21) is also fixedly provided on the base plate (18). A driving motor (22) is fixedly provided on the L-shaped connecting rod (21). The lower output end of the driving motor (22) is fixedly connected to the cam (33). A spring 2 (24) is fixedly provided on the side of the trapezoidal plates (31) that are close to each other.

2. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 1, characterized in that: At least 37 copper wires (1) are provided; and both the corona-resistant film (5) and the polyimide film (6) are provided with two layers.

3. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 1, characterized in that: The thickness of the cross-linked polyethylene layer (2) is 1-1.5 mm.

4. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 1, characterized in that: The thickness of the film layer (3) is 0.7-1.2 mm.

5. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 1, characterized in that: A partition plate (29) is provided in the cooling box (17), and the partition plate (29) divides the cooling box (17) into a water box and a dry box. The front and rear side walls of the water box are both rotatably connected with a rotating shaft. A stirring blade (51) is fixedly provided on the side where the rotating shafts are close to each other, and a gear 1 (34) is fixedly provided on the side where the rotating shafts are far away from each other. A rack 1 is provided on the vertical rod 1 (30), and the rack 1 cooperates with the gear 1 (34); a rotating rod (52) is symmetrically connected to the front and rear surface of the water tank, and the upper end of the rotating rod (52) is fixedly connected to the gear 2 (25). A plurality of stirring rods (55) are provided on the rotating rod (52). The upper end of rod one (30) is fixedly connected with a matching head (50), and a tooth plate is symmetrically slidably provided on the upper surface of the water tank. The tooth plate is matched with gear two (25). A moving rod (56) is fixedly provided on the tooth plate. A round head (58) is provided at one end of the moving rod (56) that is away from each other. The round head (58) is matched with the matching head (50). A fixed block (23) is fixedly provided on the upper surface of the water tank that is symmetrically provided front and back. A spring three (57) is fixedly provided on the side of the fixed block (23) that is close to each other. The side of the spring three (57) that is close to each other is fixedly connected to the tooth plate. A plurality of semiconductor cooling plates (49) are also provided in the water tank.

6. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 5, characterized in that: A fan housing (44) is installed on the dry box, the fan housing (44) is connected to the dry box, a fan (43) is arranged in the fan housing (44), a filter (27) is installed on the upper surface of the fan housing (44), and a connecting pipe (41) is connected on the front and rear side walls of the fan housing (44); the front and rear sides of the dry box are connected to the hollow shaft for rotation, the side of the hollow shaft close to each other is connected to the air plate (38), the pipe (41) is connected to the hollow shaft for rotation, a plurality of air holes (42) are provided on the air plate (38), and a gear three (45) is fixedly provided on the hollow shaft. Vertical rod two (28) is fixedly provided on the lifting plate (26) in a front and rear symmetrical manner, and rack two is provided on the vertical rod two (28), and rack two cooperates with gear three (45).

7. The manufacturing process of high-voltage and variable-frequency resistant submersible motor winding wire according to claim 6, characterized in that: A connecting rod (40) is fixedly provided in the dry box in an upper and lower symmetrical manner, and an arc-shaped sponge strip (39) is fixedly provided on one side of the connecting rod (40) close to each other; a transfer box (37) is fixedly provided on the lower surface of the dry box, a push plate (53) is slidably provided in the transfer box (37), a push rod (46) is fixedly provided at the lower end of the push plate (53), the push rod (46) slides downward and extends out of the transfer box (37), the lower end of the push rod (46) is fixedly connected to the lifting plate (26), the transfer box (37) is also connected through a pipe (47), and the pipe (47) is connected to the lower surface of the water tank; a front-to-back symmetrical water pushing rod (48) is also fixedly provided on the lifting plate (26), the water pushing rod (48) extends upward into the water tank, and a water pushing plate (54) is fixedly provided on the water pushing rod (48).

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