Preparation device for overhead insulated cable

Abstract

The utility model provides a preparation device for an overhead insulated cable. The preparation device for the overhead insulated cable comprises a pay-off assembly, the pay-off assembly comprises a pay-off reel, and the pay-off reel is used for paying off a conductor; the friction assembly comprises a friction assembly, a friction assembly driving part and two friction parts, the driving part is used for driving the two friction parts to do reciprocating wire twisting motion in the second direction, a friction channel used for conducting friction on the conductor is formed between the two friction parts, and an included angle is formed between the first direction and the second direction; the heating assembly comprises a heating part, the heating part is provided with a heating channel, the heating channel and the friction channel are arranged correspondingly, and the heating channel is used for heating the conductor; and the take-up assembly comprises a driving piece and a take-up reel in driving connection with the driving piece, the pay-off assembly, the friction assembly, the heating assembly and the take-up assembly are sequentially arranged in the second direction, and the take-up reel is used for winding the conductor heated by the heating part. According to the technical scheme of the utility model, the problem of insufficient grip strength of the overhead insulated cable in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of cable manufacturing technology, and more specifically, to a manufacturing apparatus for overhead insulated cables. Background Technology

[0002] Overhead insulated cables are widely used in power transmission. National standards for overhead insulated cables only specify requirements for insulation slippage force, not for gripping force with fittings. However, slippage force does not directly reflect gripping strength; insulated overhead cables that pass the slippage force test often have very low gripping strength. Gripping strength exists between fittings and the insulation layer, and between the insulation layer and the conductor layer. In actual use, the gripping strength between the insulation layer and the conductor layer is crucial to cable performance. Traditional overhead insulated cables often suffer from insufficient gripping strength between the insulation layer and the conductor layer. Insufficient gripping strength can lead to loosening and displacement of the insulation layer. Under complex climatic conditions (such as strong winds and vibrations), a weak bond between the insulation layer and the conductor can cause safety hazards such as partial discharge and insulation damage. This not only affects the electrical performance and service life of the cable but also reduces the reliability of power transmission. Utility Model Content

[0003] The main objective of this invention is to provide a preparation device for overhead insulated cables to solve the problem of insufficient holding power in existing overhead insulated cables.

[0004] To achieve the above objectives, this utility model provides a preparation apparatus for overhead insulated cables. The apparatus includes a wire feeding assembly, comprising a wire feeding reel for feeding out a conductor; a friction assembly, comprising a first support, a driving part mounted on the first support, and two friction parts spaced apart along a first direction, the driving part driving the two friction parts to reciprocate in a second direction, forming a friction channel between the two friction parts for rubbing the conductor, wherein the first and second directions are angled together; a heating assembly, comprising a second support and a heating part mounted on the second support, the heating part having a heating channel corresponding to the friction channel, the heating channel for heating the conductor; and a take-up assembly, comprising a driving member and a take-up reel driven and connected to the driving member. The wire feeding assembly, friction assembly, heating assembly, and take-up assembly are arranged sequentially along the second direction, the take-up reel being used to take up the conductor heated by the heating part.

[0005] Furthermore, the friction assembly also includes a transmission part disposed on the first bracket. The transmission part includes a transmission mechanism and two reciprocating mechanisms. The two reciprocating mechanisms are respectively used to drive the two friction parts to reciprocate and twist along the second direction. The two reciprocating mechanisms are linked together. The transmission mechanism has an input end and an output end. The input end is driven and connected to the driving part, and the output end is driven and connected to one of the two reciprocating mechanisms.

[0006] Furthermore, the transmission mechanism is a rotating shaft, with one end forming an input end and the other end forming an output end, and the rotating shaft is rotatably arranged relative to the first support.

[0007] Furthermore, the overhead insulated cable preparation device also includes two first slide rails, which are spaced apart along a first direction and extend along a second direction. The two first slide rails are slidably engaged with two friction parts respectively. Each reciprocating mechanism includes: a transmission wheel, rotatably mounted on a first support; a connecting rod, one end of which is rotatably connected to the transmission wheel, and the other end of which is rotatably connected to the friction part. The pivot point between the connecting rod and the transmission wheel is spaced apart from the rotation axis of the transmission wheel. Among them, one of the two transmission wheels is connected to the output end, and the two transmission wheels are connected in a driving connection.

[0008] Furthermore, each reciprocating mechanism also includes gears, which are sleeved on the outer circumference of the transmission wheel, and the two gears are meshed together.

[0009] Furthermore, the apparatus for preparing overhead insulated cables also includes a cylinder mounted on a first support; a second slide rail mounted on the first support and extending along a first direction; and a sliding plate slidably mounted on the second slide rail along the first direction. The sliding plate is connected to the output end of the cylinder, and one of the two first slide rails is mounted on the sliding plate.

[0010] Furthermore, the heating unit includes multiple heating elements and a housing with internal through holes. The housing is mounted on a second bracket and has multiple mounting through holes. The multiple mounting through holes are arranged at intervals along the circumference of the internal through holes. The multiple heating elements are correspondingly installed in the multiple mounting through holes, and the internal through holes form heating channels.

[0011] Furthermore, the heating assembly also includes: a temperature sensing component, wherein at least one of the plurality of mounting through holes is provided with a temperature sensing component, the temperature sensing component being used to detect the temperature of the inner wall surface of the mounting through hole provided with the temperature sensing component; and a control component, disposed on the housing, wherein the temperature sensing component is electrically connected to the control component, and the plurality of heating elements are all electrically connected to the control component.

[0012] Furthermore, the outer casing is provided with a wire hole, and the heating assembly also includes a wire harness, which includes multiple wires. One end of each of the multiple wires extends into multiple mounting through holes and connects to multiple heating elements. A protective box is provided on the side of the outer casing away from the heating channel. The protective box is provided with a wiring hole for passing through the wire harness. A sealing element is provided between the outer periphery of the wire harness and the inner wall of the wiring hole. The other end of the multiple wires extends into the protective box through the wire hole and extends out through the sealing element to connect to the power supply.

[0013] Furthermore, the heating assembly also includes multiple fasteners, and the protective box is connected to the outer shell through multiple fasteners.

[0014] By applying the technical solution of this utility model, the conductor is released from the pay-off reel and moves along the second direction toward the friction assembly and enters the friction channel. The driving unit drives the two friction parts to reciprocate along the second direction, performing a twisting process on the surface of the conductor. The twisting action of the two friction parts increases the roughness of the conductor surface. After the twisting process, the conductor moves along the second direction toward the heating assembly and enters the heating channel. Under the action of the heating unit, the temperature of the conductor rises. The heated conductor moves along the second direction toward the take-up assembly. The take-up reel, under the action of the driving unit, winds up the heated conductor. By setting the friction assembly and the heating assembly, not only can the roughness of the conductor surface be increased, but the conductor can also be heated so that the conductor and the insulation material can be fully contacted at high temperature. This can improve the gripping force between the conductor layer and the insulation layer of the cable, thereby improving the electrical performance and service life of the cable and increasing the reliability of power transmission. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the friction assembly of an embodiment of the overhead insulated cable preparation apparatus of this utility model is shown;

[0017] Figure 2 It shows Figure 1 A schematic diagram of the friction assembly from another perspective;

[0018] Figure 3 A schematic diagram of the heating assembly of the overhead insulated cable preparation device of this utility model is shown;

[0019] Figure 4 It shows Figure 3 Left view of the heating component;

[0020] Figure 5 A schematic diagram of the structure of the overhead insulated cable preparation device of this utility model is shown;

[0021] Figure 6 It shows Figure 5 A top view of the apparatus for preparing overhead insulated cables;

[0022] Figure 7 A schematic diagram of the structure of an overhead insulated cable is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. Conductor layer; 2. Insulating layer; 10. Friction assembly; 11. First bracket; 111. First support member; 112. Second support member; 12. Drive unit; 13. Friction unit; 131. First plate segment; 132. Second plate segment; 133. Friction plate; 14. Reciprocating mechanism; 141. Gear; 142. Transmission wheel; 143. Connecting rod; 15. Second slide rail; 16. Sliding member; 17. Sliding plate; 19. First slide rail; 20. Heating component; 21. Second bracket; 22. Heating element; 23. Temperature detection component; 24. Control component; 26. Protective box; 28. Outer shell; 29. ​​Fixing component; 30. Cable feeding component; 31. Cable feeding reel; 40. Cable take-up component; 41. Cable take-up reel; 51. Cylinder; 52. Internal through hole; 53. Connecting component; 54. Sealing component; 55. Receiving box; 56. Fixing plate; 61. Transmission mechanism; 200. Heating section. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, in the embodiments of this utility model, such as Figure 7 As shown, the overhead insulated cable includes a conductor layer 1 and an insulation layer 2, with the insulation layer 2 disposed on the outer periphery of the conductor layer 1.

[0027] It should be noted that, in the embodiments of this utility model, the first direction is as follows: Figure 1 As shown, the second direction is as follows Figure 2 As shown, the first direction and the second direction are set at an angle, preferably, the first direction and the second direction are set perpendicularly, wherein the first direction is the height direction and the second direction is the width direction.

[0028] like Figures 1 to 6As shown, an embodiment of this utility model provides a preparation apparatus for overhead insulated cables. The overhead insulated cable preparation apparatus includes a wire feeding assembly 30, which includes a wire feeding reel 31 for feeding out the conductor; a friction assembly 10, which includes a first support 11 and a drive part 12 and two friction parts 13 disposed on the first support 11. The two friction parts 13 are spaced apart along a first direction, and the drive part 12 is used to drive the two friction parts 13 to reciprocate the wire twisting motion along a second direction. A friction channel for rubbing the conductor is formed between the two friction parts 13, wherein the first direction and the second direction are arranged at an angle; a heating assembly 20, which includes a second support 21 and a heating part 200 disposed on the second support 21. The heating part 200 has a heating channel, which is corresponding to the friction channel and is used to heat the conductor; and a take-up assembly 40, which includes a drive member and a take-up reel 41 drivenly connected to the drive member. The wire feeding assembly 30, the friction assembly 10, the heating assembly 20, and the take-up assembly 40 are arranged sequentially along the second direction. The take-up reel 41 is used to take up the conductor heated by the heating part 200.

[0029] In the above technical solution, the wire release reel 31 releases the conductor, which moves along the second direction toward the friction assembly 10 and enters the friction channel. The drive unit 12 drives two friction units 13 to reciprocate along the second direction, performing a wire twisting process on the surface of the conductor. The twisting action of the two friction units 13 increases the roughness of the conductor surface. The conductor after the wire twisting process moves along the second direction toward the heating assembly 20 and enters the heating channel. Under the action of the heating unit 200, the temperature of the conductor rises. The heated conductor moves along the second direction toward the take-up assembly 40. The take-up reel 41, under the action of the drive unit, winds up the heated conductor. By setting the friction assembly 10 and the heating assembly 20, not only can the roughness of the conductor surface be increased, but the conductor can also be heated so that the conductor and the insulation material can be fully contacted at high temperature. This can improve the gripping force between the conductor layer 1 and the insulation layer 2 of the cable, thereby improving the electrical performance and service life of the cable and increasing the reliability of power transmission.

[0030] Specifically, in the embodiments of this utility model, gripping force refers to the maximum stress that the overhead insulated cable can withstand under the cooperation of the overhead insulated cable and the tension fitting. The gripping force mainly exists between the conductor layer 1 and the insulation layer 2, and refers to the degree of mechanical fastening between the conductor layer 1 and the insulation layer 2, that is, the ability of the insulation layer 2 to resist relative sliding with the conductor layer 1 when subjected to tension or external force.

[0031] like Figure 1 and Figure 2As shown in the embodiment of this utility model, the friction assembly 10 further includes a transmission part disposed on the first bracket 11. The transmission part includes a transmission mechanism 61 and two reciprocating mechanisms 14. The two reciprocating mechanisms 14 are respectively used to drive the two friction parts 13 to reciprocate and twist along the second direction. The two reciprocating mechanisms 14 are linked together. The transmission mechanism 61 has an input end and an output end. The input end is driven and connected to the driving part 12, and the output end is driven and connected to one of the two reciprocating mechanisms 14.

[0032] In the above technical solution, the drive unit 12 transmits the driving force to one of the two reciprocating mechanisms 14 through the transmission mechanism 61 connected to it. Since the two reciprocating mechanisms 14 are linked, the two reciprocating mechanisms 14 can drive the two friction units 13 to perform reciprocating twisting motion along the second direction to rub the surface of the conductor. In this way, the roughness of the conductor surface can be increased, thereby improving the grip between the insulation material and the conductor, so as to improve the electrical performance and service life of the cable.

[0033] Specifically, in the embodiments of this utility model, the drive unit 12 is a motor, and the motor provides power to the friction assembly 10 through a separate power supply.

[0034] Specifically, in the embodiments of this utility model, the first bracket 11 includes a first support member 111 and a second support member 112 arranged at an angle, a transmission mechanism 61 and a drive unit 12 are disposed on the second support member 112, and two reciprocating mechanisms 14 and two friction units 13 are disposed on the first support member 111.

[0035] like Figures 1 to 2 As shown in the embodiment of this utility model, the transmission mechanism 61 is a rotating shaft, one end of which forms an input end and the other end of which forms an output end. The rotating shaft is rotatably arranged relative to the first bracket 11.

[0036] In the above technical solution, the rotating shaft, as a direct power transmission element, can realize the direct transmission of power from the drive unit 12 to the reciprocating mechanism 14, making the operation of the entire friction assembly 10 more efficient.

[0037] like Figure 1 and Figure 2As shown in the embodiment of this utility model, the overhead insulated cable preparation device further includes two first slide rails 19, which are spaced apart along a first direction and extend along a second direction. The two first slide rails 19 are slidably engaged with two friction parts 13 respectively. Each reciprocating mechanism 14 includes: a transmission wheel 142, which is rotatably mounted on a first support 11; a connecting rod 143, one end of which is rotatably connected to the transmission wheel 142, and the other end of which is rotatably connected to the friction part 13. The pivot point between the connecting rod 143 and the transmission wheel 142 is spaced apart from the rotation axis of the transmission wheel 142. One of the two transmission wheels 142 is connected to the output end, and the two transmission wheels 142 are connected in a transmission manner.

[0038] In the above technical solution, the drive unit 12 drives the shaft to rotate, which in turn causes the transmission wheel 142 connected to the shaft to rotate. Since the two transmission wheels 142 are connected by transmission, they can rotate synchronously. When the transmission wheel 142 rotates, one end of the connecting rod 143 moves in a circular motion along with the rotation of the transmission wheel 142. The other end of the connecting rod 143 is rotatably connected to the friction part 13, converting the circular motion into the linear motion of the friction part 13. By setting the sliding fit of the first slide rail 19 and the friction part 13, the friction part 13 can perform precise and stable reciprocating motion in the second direction, uniformly twisting the conductor surface and increasing the roughness of the conductor surface.

[0039] It should be noted that in the embodiments of this utility model, the two transmission wheels 142 rotate synchronously and in opposite directions. This allows the two friction parts 13 to move in opposite directions, so as to twist the conductor between the two friction parts 13.

[0040] Specifically, in the embodiments of this utility model, each friction part 13 includes a first plate segment 131 and a second plate segment 132 connected to each other and arranged at an included angle. The two first plate segments 131 are rotatably connected to two connecting rods 143. The two second plate segments 132 are located between the two first plate segments 131. A friction plate 133 is provided on the side of the second plate segment 132 away from the first plate segment 131. A friction channel is formed between the two friction plates 133. During the conductor manufacturing stage, the conductor after the preliminary process such as wire drawing is introduced into the friction part 13. The surface of the friction plate 133 has a specific texture or shape. For example, the specific texture or shape can be multiple protrusions or multiple grooves. The specific shape can be wavy. The conductor passes through the two friction plates 133. Under the friction action of the friction plate 133, the conductor is squeezed and rubbed. The metal wires on the surface of the conductor are disrupted and deformed, forming a microscopic uneven structure. The size and depth of these uneven structures can be designed and adjusted according to the friction plate 133.

[0041] Specifically, in the embodiments of this utility model, each first plate segment 131 is provided with a sliding groove, which is located on the side of the first plate segment 131 away from the connecting rod 143, and the two sliding grooves are respectively slidably engaged with the two first slide rails 19.

[0042] like Figure 2 As shown in the embodiments of this utility model, each reciprocating mechanism 14 further includes a gear 141, which is sleeved on the outer periphery of the transmission wheel 142, and the two gears 141 are meshed.

[0043] In the above technical solution, the rotating shaft drives one of the two transmission wheels 142 to rotate. The rotation of the transmission wheel 142 causes the gear 141 sleeved on the outer circumference of the transmission wheel 142 to start rotating. Since the two gears 141 are meshed, the other gear 141 can rotate, thereby driving the other transmission wheel 142 to rotate. In this way, one end of the connecting rod 143 can perform a circular motion with the rotation of the transmission wheel 142, and the other end of the connecting rod 143 can perform a reciprocating twisting motion in the second direction.

[0044] In one embodiment, the drive wheel 142 is a pulley, and the reciprocating mechanism 14 also includes a belt, which is sleeved on the outer periphery of the two drive wheels 142.

[0045] like Figure 1 and Figure 2 As shown in the embodiment of this utility model, the overhead insulated cable preparation device further includes a cylinder 51, which is disposed on the first support 11; a second slide rail 15, which is disposed on the first support 11 and extends along a first direction; and a sliding plate 17, which is slidably disposed on the second slide rail 15 along the first direction. The sliding plate 17 is connected to the output end of the cylinder 51, and one of the two first slide rails 19 is disposed on the sliding plate 17.

[0046] In the above technical solution, when it is necessary to rub the surfaces of conductors of different diameters, by setting a sliding fit second slide rail 15 and a sliding plate 17, the output end of the cylinder 51 can drive the sliding plate 17 to move on the second slide rail 15 in the first direction, so that the friction part 13 on the sliding plate 17 moves along the first direction, thereby changing the size of the friction channel to adapt to conductors of different diameters and improve the flexibility and adaptability of the overhead insulated cable preparation device.

[0047] Specifically, in the embodiments of this utility model, there are two second slide rails 15. Along the second direction, the two second slide rails 15 are respectively arranged on both sides of the sliding plate 17. The sliding plate 17 is slidably engaged with the two second slide rails 15. One of the two first plate segments 131 is arranged on the sliding plate 17. The overhead insulated cable preparation device also includes two sliding members 16. The two sliding members 16 are arranged on the side of the sliding plate 17 connected to the output end of the cylinder 51 away from the first slide rail 19. The two sliding members 16 are slidably engaged with the two second slide rails 15.

[0048] Specifically, in the embodiments of this utility model, the overhead insulated cable preparation device further includes two connectors 53 and a fixing plate 56. The other first plate segment 131 of the two first plate segments 131 is disposed on the fixing plate 56. The two connectors 53 are disposed on the side of the fixing plate 56 away from the first slide rail 19. The two connectors 53 are fixedly connected to the two second slide rails 15.

[0049] like Figure 3 and Figure 4 As shown in the embodiment of the present invention, the heating part 200 includes a plurality of heating elements 22 and a housing 28 having an internal through hole 52. The housing 28 is disposed on the second bracket 21 and has a plurality of mounting through holes. The plurality of mounting through holes are arranged at intervals along the circumference of the internal through hole 52. The plurality of heating elements 22 are disposed one-to-one in the plurality of mounting through holes, and the internal through hole 52 forms a heating channel.

[0050] In the above technical solution, by setting multiple heating elements 22 and arranging them at intervals along the circumference of the internal through hole 52, this layout can ensure that the conductor is heated evenly in the heating channel, avoiding the phenomenon of local overheating or uneven heating of the conductor.

[0051] Specifically, in the embodiments of this utility model, the heating element 22 is a heating rod.

[0052] Specifically, in the embodiments of this utility model, the mounting through hole is filled with heat insulation cotton, so as to maintain the temperature of the heating element 22. The heat insulation cotton is located between the inner wall surface of the mounting through hole and the heating element 22.

[0053] like Figure 3 and Figure 4 As shown in the embodiment of this utility model, the heating component 20 further includes a temperature detection component 23. At least one of the multiple mounting through holes is provided with a temperature detection component 23. The temperature detection component 23 is used to detect the temperature of the inner wall surface of the mounting through hole provided with the temperature detection component 23. A control component 24 is disposed on the outer shell 28. The temperature detection component 23 is electrically connected to the control component 24. The multiple heating components 22 are all electrically connected to the control component 24.

[0054] In the above technical solution, the temperature detection component 23 can accurately detect the temperature of the inner wall surface of the mounting through hole. When the temperature of the heating element 22 is too high, the control component 24 controls the heating element 22 to stop heating; when the temperature of the heating element 22 is too low, the control component 24 can control the heating element 22 to start heating. In this way, the phenomenon of overheating or underheating of the conductor can be avoided, so that the conductor can fully contact and fuse with the insulating material at high temperature.

[0055] Specifically, in this embodiment of the invention, the conductor, after being twisted, is conveyed into the heating assembly. The heating temperature and heating time of the heating element 22 are set according to the conductor's material and the characteristics of the insulation material. The temperature detection component 23 monitors the conductor temperature in real time and feeds the signal back to the control component 24. The control component 24 adjusts the power of the heating element 22 based on the feedback signal to ensure the conductor temperature remains stable within the set range. After heating is completed, the conductor is immediately conveyed to the insulation layer production process to ensure that the conductor fully contacts and fuses with the insulation material at high temperature.

[0056] Specifically, in the embodiments of this utility model, the control component 24 is a controller, and the temperature detection component 23 is a temperature sensor.

[0057] Specifically, in the embodiments of this utility model, the heating assembly 20 further includes a receiving box 55 communicating with at least one of the plurality of mounting through holes. The receiving box 55 can accommodate at least part of the temperature sensing component 23, and the receiving box 55 is disposed on the outer shell 28.

[0058] like Figure 3 As shown in the embodiment of this utility model, the outer shell 28 is provided with a wire hole, and the heating assembly 20 also includes a wire harness, including multiple wires, one end of each wire extending into multiple mounting through holes and connected to multiple heating elements 22; a protective box 26 is provided on the side of the outer shell 28 away from the heating channel, the protective box 26 is provided with a wiring hole for passing through the wire harness, and a sealing element 54 is provided between the outer periphery of the wire harness and the inner wall of the wiring hole, and the other end of the multiple wires extends into the protective box 26 through the wire hole and extends out through the sealing element 54 to connect to the power supply.

[0059] In the above technical solution, on the one hand, multiple wires are connected to multiple heating elements 22 respectively, and power is provided to each heating element 22 through independent wires, which can make heat transfer to the conductor quickly and evenly, avoiding the phenomenon of local overheating or uneven heating of the conductor; on the other hand, by setting the sealing element 54, the heat of the heating element 22 can be prevented from overflowing from the wiring hole, thus maintaining the temperature inside the mounting hole; furthermore, the protective box 26 seals the electrical connection between the heating element 22 and the external power supply, effectively isolating the high temperature and electrical environment of the heating component 20.

[0060] Specifically, in the embodiments of this utility model, the protective box 26 is disposed on the side away from the temperature detection component 23.

[0061] like Figure 3 As shown in the embodiment of this utility model, the heating component 20 further includes a plurality of fixing members 29, and the protective box 26 is connected to the outer shell 28 through the plurality of fixing members 29.

[0062] In the above technical solution, multiple fasteners 29 ensure a stable connection between the protective box 26 and the outer shell 28, thereby enhancing the overall mechanical strength of the heating assembly 20.

[0063] Preferably, in the embodiments of this utility model, the fixing member 29 is a bolt.

[0064] Specifically, in the embodiments of this utility model, before the extrusion insulation process, two friction parts 13 are used to process the conductor. The friction parts 13, through a specific mechanical structure and working principle, make the surface of the conductor rough. This rough surface increases the contact area and friction between the conductor and the insulation layer. When the insulation layer is subsequently extruded onto the conductor layer, the rough conductor surface can better bond with the insulation material, thereby greatly improving the grip strength of the finished cable.

[0065] Specifically, in this embodiment of the invention, the heating component 20 is used to heat the surface-treated conductor. The heating temperature is controlled within a specific range, which can be adjusted according to different conductors to enhance the activity of molecules on the conductor surface. When the insulating material is applied to the heated conductor, the insulating material and the conductor can fuse better, thereby significantly enhancing the grip between the insulation layer and the conductor. During the heating process, precise temperature control and uniform heating technology are employed to ensure that all parts of the conductor are heated evenly, avoiding local overheating or underheating from affecting the cable performance.

[0066] Specifically, in the embodiments of this utility model, conventional production processes for the insulation layer 2, such as extrusion molding, are used to cover the heated conductor with insulating material to form an overhead insulated cable. During the production of the insulation layer, care is taken to control the extrusion speed and pressure to ensure uniform thickness and stable quality of the insulation layer.

[0067] Specifically, the overhead insulated cable of this invention can be used in harsh environments.

[0068] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: the wire release reel releases the conductor, the conductor moves along the second direction toward the friction assembly and enters the friction channel, the driving part drives the two friction parts to reciprocate along the second direction, and performs wire twisting treatment on the surface of the conductor. Through the twisting of the two friction parts, the roughness of the conductor surface is increased. The conductor after wire twisting treatment moves along the second direction toward the heating assembly and enters the heating channel. Under the action of the heating part, the temperature of the conductor rises. The heated conductor moves along the second direction toward the take-up assembly. The take-up reel, under the action of the driving part, winds up the heated conductor. By setting the friction assembly and the heating assembly, not only can the roughness of the conductor surface be increased, but the conductor can also be heated so that the conductor and the insulation material can be fully contacted at high temperature. In this way, the gripping force between the conductor layer and the insulation layer of the cable can be improved, thereby improving the electrical performance and service life of the cable and increasing the reliability of power transmission.

[0069] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A production apparatus for an aerial insulated cable, characterized by comprising: The device comprises: a pay-off assembly (30) comprising a pay-off disc (31) for paying out a conductor; a friction assembly (10) comprising a first support (11) and a driving part (12) and two friction parts (13) arranged on the first support (11), the two friction parts (13) being arranged in a first direction, the driving part (12) being used for driving the two friction parts (13) to reciprocatingly rub the conductor in a second direction, a friction channel for rubbing the conductor being formed between the two friction parts (13), wherein the first direction and the second direction are arranged at an angle; a heating assembly (20) comprising a second support (21) and a heating part (200), the heating part (200) being arranged on the second support (21), the heating part (200) having a heating channel corresponding to the friction channel, the heating channel being used for heating the conductor; a take-up assembly (40) comprising a driving member and a take-up disc (41) drivingly connected with the driving member, the pay-off assembly (30), the friction assembly (10), the heating assembly (20) and the take-up assembly (40) being arranged in sequence in the second direction, the take-up disc (41) being used for winding the conductor heated by the heating part (200).

2. The preparation device for overhead insulated cables according to claim 1, characterized in that The friction assembly (10) further comprises a transmission part arranged on the first support (11), the transmission part comprising a transmission mechanism (61) and two reciprocating mechanisms (14), the two reciprocating mechanisms (14) being respectively used for driving the two friction parts (13) to reciprocatingly rub the conductor in the second direction, the two reciprocating mechanisms (14) being arranged in linkage, the transmission mechanism (61) having an input end and an output end, the input end being drivingly connected with the driving part (12), the output end being drivingly connected with one of the two reciprocating mechanisms (14).

3. The preparation device for overhead insulated electrical cables according to claim 2, characterized in that The transmission mechanism (61) is a rotating shaft, one end of the rotating shaft forming the input end, the other end of the rotating shaft forming the output end, the rotating shaft being rotatably arranged relative to the first support (11).

4. The preparation device for overhead insulated electric cables according to claim 2, characterized in that, The device further comprises two first sliding rails (19) arranged in the first direction in a spaced manner, each of the first sliding rails (19) extending in the second direction, the two first sliding rails (19) being respectively slidably matched with the two friction parts (13), each of the reciprocating mechanisms (14) comprising: a transmission wheel (142) rotatably arranged on the first support (11); a connecting rod (143), one end of the connecting rod (143) being rotatably connected with the transmission wheel (142), the other end of the connecting rod (143) being rotatably connected with the friction part (13), a pivot point between the connecting rod (143) and the transmission wheel (142) being arranged in a spaced manner relative to a rotating axis of the transmission wheel (142); One of the two transmission wheels (142) is connected with the output end, and the two transmission wheels (142) are in transmission connection.

5. The preparation device for overhead insulated electrical cables according to claim 4, characterized in that Each of the reciprocating mechanisms (14) further comprises a gear (141) sleeved on the outer periphery of the transmission wheel (142), and the two gears (141) are in gear meshing arrangement.

6. The preparation device for overhead insulated electric cables according to claim 4, characterized in that, The overhead insulated cable preparation device further comprises: A cylinder (51) is arranged on the first support (11); A second sliding rail (15) is arranged on the first support (11) and extends along the first direction; A sliding plate (17) is slidably arranged on the second sliding rail (15) along the first direction, the sliding plate (17) is connected with the output end of the cylinder (51), and one of the two first sliding rails (19) is arranged on the sliding plate (17).

7. The preparation apparatus for overhead insulated cables according to any one of claims 1 to 6, characterized in that The heating part (200) comprises a plurality of heating elements (22) and a shell (28) with an internal through hole (52), the shell (28) is arranged on the second support (21), a plurality of mounting through holes are arranged on the shell (28) and are arranged at intervals in the circumferential direction of the internal through hole (52), and the plurality of heating elements (22) are arranged one by one in the plurality of mounting through holes.

8. The preparation device for overhead insulated electrical cables according to claim 7, characterized in that The heating assembly (20) further comprises: A temperature detection member (23) is arranged in at least one of the plurality of mounting through holes, and the temperature detection member (23) is used for detecting the temperature of the inner wall surface of the mounting through hole in which the temperature detection member (23) is arranged; A control member (24) is arranged on the shell (28), the temperature detection member (23) is electrically connected with the control member (24), and the plurality of heating elements (22) are all electrically connected with the control member (24).

9. The preparation device for overhead insulated electrical cables according to claim 8, characterized in that The shell (28) is provided with a wire hole, and the heating assembly (20) further comprises: A wire harness comprises a plurality of wires, one end of each of the plurality of wires is arranged in each of the plurality of mounting through holes and connected with the plurality of heating elements (22); A protective box (26) is arranged on the side of the shell (28) away from the heating channel, the protective box (26) is provided with a wiring hole for arranging the wire harness, a sealing member (54) is arranged between the outer periphery of the wire harness and the inner wall of the wiring hole, the other end of each of the plurality of wires is arranged in the protective box (26) through the wire hole and extends out of the sealing member (54) and is connected with a power supply.

10. The preparation device for overhead insulated electrical cables according to claim 9, characterized in that The heating assembly (20) further comprises a plurality of fixing members (29), and the protective box (26) is connected with the shell (28) through the plurality of fixing members (29).

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