A power cable twisting processing device with an anti-damage tension adjustment mechanism

Abstract

The present invention discloses a power cable twisting processing device with an anti-damage tension adjustment mechanism, which relates to the technical field of cable twisting. It improves the sub-wire conduction process in the power cable twisting process, which is specifically manifested in the rear-position line changing process and the front-position line clamping process in the sub-wire conduction process. The essence of the rear-position line changing process is to change the bending degree of the sub-wire by multiple groups of guide wheel groups on the basis of not interfering with the normal conduction of the sub-wire, and cooperate with the number of sub-wires. The tension change in the sub-wire conduction process is used to change the movement form of the guide wheel group, so that the tension fluctuation degree that may exist in a certain place is "evenly shared" by all the sub-wires, avoiding the large tension fluctuation of a single sub-wire affecting the overall twisting process. The front-position line clamping process will not interfere with the winding process of the sub-wire, and uses the change of magnetic force to improve the clamping force of the permanent magnetic beads on the sub-wire to maintain the twisting quality of the sub-wire, and completes the twisting with the cooperation of the front and rear two groups of processes.

Description

Technical Field

[0001] The present invention relates to the technical field of cable twisted wires, and in particular to a power cable twisted wire processing device with a damage-proof tension adjustment mechanism. Background Art

[0002] The process of twisting power cables is explained as follows: multiple conductor wires are twisted together according to specific rules. For details, please refer to the twisting machines mentioned in publication numbers CN117936194A and CN119340038A. Multiple conductor wires are synchronously conducted in a circular motion to complete the twisting.

[0003] When the diameter and number of conductor single wires are constant, the rotation speed and pulling speed during the twisting process are one of the key factors affecting the twisting quality. The purpose is to ensure that the conductor single wires are tightly twisted. This process requires that the conductor single wires are in a relatively straight state. However, it should be noted that in this process: If the conductor single wires are excessively straightened, it will cause elastic deformation of the conductor single wire, which is a damage problem, and even irreversible tensile damage will occur directly. However, if it is difficult to maintain the straight state of the conductor single wire, it will also affect the subsequent twisting quality, such as loose wire core, local bulging, jumper wire and other problems. This is specifically reflected in the tension control process of the conductor single wire. However, in the conventional twisting process, multiple conductor single wires are required to cooperate with each other. The tension fluctuation of one conductor single wire will also affect the twisting quality of one or more conductor single wires in other positions. The present invention proposes a solution to this problem. Summary of the Invention

[0004] The object of the present invention is to provide a power cable twisting processing device with an anti-damage tension adjustment mechanism. In the twisting processing process of the power cable, since the tension change of the conductor single wire may cause problems such as loose wire core, local bulging, and jumper, the tension adjustment process of the conductor single wire is specifically proposed. However, in actual operation, multiple conductor single wires need to cooperate with each other, and the twisting process in a single conductor single wire will directly affect the overall twisting process.

[0005] The object of the present invention can be achieved by the following technical solution: a power cable twisting processing device with an anti-damage tension adjustment mechanism, comprising a rotating base, a threading frame and a traction base, wherein the power cable is conducted in the direction from the threading frame to the traction base, a front clamping group is provided between the traction base and one end of the threading frame, and a rear wire changing group is provided at the other end of the threading frame;

[0006] The rear-position line-changing group is composed of a fixed guide wheel group, a pressure-bearing guide wheel group and a transformer guide wheel group. The fixed guide wheel group and the pressure-bearing guide wheel group are rotationally connected, and the center points of the fixed guide wheel group and the pressure-bearing guide wheel group are not on the same linear axis. The pressure-bearing guide wheel group and the transformer guide wheel group are tangent to each other. The sub-wire in the power cable is located between the pressure-bearing guide wheel group and the transformer guide wheel group. The front-position wire clamping group includes a wire frustum, an energized electromagnetic ring group and a wire pressing cone sleeve. The sub-wire in the power cable is located in the middle position of the wire frustum and the wire pressing cone sleeve. The wire frustum, the wire pressing cone sleeve and the wire threading frame rotate synchronously.

[0007] It is further configured as follows: the threading frame rotates in a directional and uniform manner on the rotating base, the busbar in the power cable passes through the center point of the threading frame, a mounting platform is provided between the threading frame and the traction base, the energized electromagnetic ring group is fixedly mounted on the mounting platform, a gear transmission structure is provided on the mounting platform, and the wire pressing cone sleeve is rotatably connected on the mounting platform through the gear transmission structure.

[0008] It is further configured as follows: the wire pressing cone sleeve is located on the outer wall of the wire cone, and small wire grooves and large wire grooves corresponding to the sub-wires are respectively opened on the outer wall of the wire cone and the inner wall of the wire pressing cone sleeve, and the energized electromagnetic ring group is located on the outer wall of the wire pressing cone sleeve.

[0009] It is further configured as follows: the inner wall diameter of the small wire trough is equal to the outer diameter of the sub-wire, the inner wall diameter of the large wire trough is larger than the outer diameter of the sub-wire, and a directional sliding sleeve perpendicular to the outer surface of the conductor cone is installed at the position of the wire pressing cone sleeve corresponding to the large wire trough, and the directional sliding sleeve is linearly and equidistantly arranged along the length direction of the large wire trough.

[0010] It is further configured as follows: a permanent magnetic bead is provided in the directional sleeve to match the energized electromagnetic ring group, and an exposure opening corresponding to the permanent magnetic bead is opened at the lower end of the directional sleeve, and the diameter of the exposure opening is smaller than the outer diameter of the permanent magnetic bead.

[0011] It is further configured as follows: the fixed guide wheel group is fixedly connected to the threading frame, the transformer guide wheel group is slidingly connected to the threading frame, and the sliding direction of the transformer guide wheel group is an arc that matches the center point of the threading frame.

[0012] It is further configured as follows: the number of rear-position line-changing groups matches the number of power cable sub-lines, and pressure spring frames are installed between the transformer guide wheel groups and the pressure guide wheel groups in the rear-position line-changing groups between adjacent positions. The pressure spring frames are symmetrically arranged along the power cable conduction direction, and the pressure spring frames are in a curved arch shape along the direction away from each other.

[0013] It is further configured as follows: a small liquid jacket matching the conduction direction of the power cable is installed at the middle position of the two pressure spring frames, piston guide rods corresponding to the pressure spring frames are provided at both ends of the small liquid jacket, and an oil chamber is opened in the small liquid jacket, and an oil ring is connected between each of the oil chambers.

[0014] The present invention has the following beneficial effects:

[0015] 1. Improve the twisting process of power cables. First, multiple guide wheel groups are used to change the conduction direction of the sub-line at the rear position of the overall device. Its essence is that the pressure guide wheel group and the transformer guide wheel group change the conduction direction of the sub-line to be inclined, and the fixed guide wheel group is used to maintain the conduction direction of the sub-line always horizontal. The key is that the pressure guide wheel group and the transformer guide wheel group will slide or rotate relative to each other when a certain sub-line has obvious tension fluctuations, and the sub-line is always located between the pressure guide wheel group and the transformer guide wheel group. However, the pressure guide wheel group and the transformer guide wheel group in the adjacent positions are further A pressure spring frame is set between the transformer guide wheel groups. The pressure spring frame undergoes adaptive bending deformation due to the relative displacement of the two, and the communication between each small liquid jacket is maintained through the liquid ring, thereby changing the distribution process of the hydraulic oil and other media in the small liquid jacket. Therefore, the bending degree of the sub-line can be changed through multiple groups of guide wheel groups without interfering with the normal conduction of the sub-line. The tension change in the conduction process of the sub-line is used to change the movement form of the guide wheel group, so that the tension fluctuation that may exist at a certain point is "evenly shared" by all the sub-lines, avoiding the large tension fluctuation of a single sub-line affecting the overall wire twisting process.

[0016] 2. The front clamping process will not affect the winding process of the sub-wire, thereby ensuring that the conductor frustum, the clamping cone sleeve and the threading frame rotate synchronously. The conductor frustum, the clamping cone sleeve and the threading frame are always in position to clamp the sub-wire. The key lies in the large wire groove set in the clamping cone. The large wire groove is not completely adapted to the diameter of the sub-wire. Specifically, the permanent magnetic beads in the directional sleeve are used to clamp the sub-wire, and the sub-wire is completely "locked" on the conductor frustum. The rear-position line changing process is used to increase the repulsive force of the permanent magnetic beads by increasing the current in the energized electromagnetic ring group, thereby further driving the permanent magnetic beads close to the sub-wire. Its essence is to use the change of magnetic force to improve the clamping force of the permanent magnetic beads on the sub-wire, thereby maintaining the quality of the stranded wire of the sub-wire, and the two groups of processes cooperate to complete the stranding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a power cable twisting processing device with an anti-damage tension adjustment mechanism proposed by the present invention;

[0019] Figure 2 For the present invention Figure 1 Side view of

[0020] Figure 3 Schematic diagram of the structure of the rear position line changing group in the present invention;

[0021] Figure 4 For the present invention Figure 3 Middle partial schematic diagram;

[0022] Figure 5 For the present invention Figure 4 Front view of

[0023] Figure 6 For the present invention Figure 4 Cross-section of small and medium fluid sleeves;

[0024] Figure 7 This is a disassembled diagram of the front clamping group in the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of the medium voltage line cone sleeve;

[0026] Figure 9 For the present invention Figure 8 Cross-section of the directional sleeve.

[0027] In the figure: 1. Rotating base; 2. Wire threading frame; 3. Traction base; 4. Fixed guide wheel assembly; 5. Pressure guide wheel assembly; 6. Voltage transformer guide wheel assembly; 7. Wire pressing cone sleeve; 8. Power-on electromagnetic ring assembly; 9. Wire cone; 10. Small fluid jacket; 11. Oil ring; 12. Pressure spring frame; 13. Small wire trough; 14. Large wire trough; 15. Directional sliding sleeve; 16. Permanent magnetic beads; 17. Mounting table. DETAILED DESCRIPTION

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all 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.

[0029] Example 1: In the twisting process of power cables, due to the change in the tension of the conductor single wire, problems such as loose wire core, local bulging, and wire jump may occur. Therefore, a specific process of controlling the tension of the conductor single wire is proposed. However, in actual operation, multiple conductor single wires need to cooperate with each other. The twisting process of a single conductor single wire will directly affect the overall twisting process. In this regard, the following technical solution is proposed:

[0030] Reference Figures 1 to 9 In this embodiment, a power cable twisting processing device with an anti-damage tension adjustment mechanism includes a rotating base 1, a threading frame 2, and a traction base 3. The power cable is transmitted along the threading frame 2 to the traction base 3. A front clamping group is provided between the traction base 3 and one end of the threading frame 2, and a rear wire changing group is provided at the other end of the threading frame 2.

[0031] The rear-position line-changing group consists of a fixed guide wheel group 4, a pressure-bearing guide wheel group 5, and a voltage-changing guide wheel group 6. The fixed guide wheel group 4 and the pressure-bearing guide wheel group 5 are rotationally connected, and the center points of the fixed guide wheel group 4 and the pressure-bearing guide wheel group 5 are not on the same linear axis. The pressure-bearing guide wheel group 5 and the voltage-changing guide wheel group 6 are tangent to each other, and the sub-line in the power cable is located between the pressure-bearing guide wheel group 5 and the voltage-changing guide wheel group 6.

[0032] The front clamping group includes a conductor cone 9, an energized electromagnetic ring group 8 and a wire pressing cone sleeve 7. The sub-wire in the power cable is located in the middle position of the conductor cone 9 and the wire pressing cone sleeve 7. The conductor cone 9, the wire pressing cone sleeve 7 and the wire threading frame 2 rotate synchronously. The wire threading frame 2 rotates in a direction and at a uniform speed on the rotating base 1. The busbar in the power cable passes through the center point of the wire threading frame 2. A mounting platform 17 is provided between the wire threading frame 2 and the traction base 3. The energized electromagnetic ring group 8 is fixedly installed on the mounting platform 17. A gear transmission structure is provided on the mounting platform 17. The wire pressing cone sleeve 7 is rotatably connected on the mounting platform 17 through the gear transmission structure.

[0033] Basic principle: A brief description of the wire twisting process of the power cable: its essence is to utilize a wire twisting machine, in which the busbar passes through the central point area of ​​the threading frame 2 by traction, and the sub-wire passes through the outer ring part of the threading frame 2, which is specifically embodied at the traction base 3. The sub-wire is continuously wound on the busbar at the traction base 3. The sub-wire may have tension changes during the overall traction conduction process due to the influence of parameters such as traction speed and rotation speed. For this purpose, the present invention specifically optimizes and improves the initial position of the sub-wire conduction and the winding process, which is specifically manifested in the rear-position line changing process and the front-position line clamping process. Its essence is to give priority to regulating the tension change of each sub-wire, and secondly to ensure the clamping force during the winding process;

[0034] Because the busbar maintains horizontal conduction in the threading frame 2, and the center point of the busbar and the center point of the threading frame 2 are on the same horizontal axis, in order to maintain the quality of the twisted wire, it is also necessary to ensure that the threading point position of the corresponding busbar / sub-wire in the traction base 3 is also on the same horizontal axis as the center point of the threading frame 2. The front wire clamping group is located in the middle position of the traction base 3 and the threading frame. It is also necessary to further maintain the installation position of the front wire clamping group relative to the mounting platform 17, in order to ensure that the center point positions of the conductor cone 9, the energized electromagnetic ring group 8 and the wire pressing cone sleeve 7 in the front wire clamping group are also on the same horizontal axis as the center point of the busbar.

[0035] Example 2: The following description is given for the rearward lane change process:

[0036] The fixed guide wheel group 4 is fixedly connected to the threading frame 2, the transformer guide wheel group 6 is slidably connected to the threading frame 2, and the sliding direction of the transformer guide wheel group 6 is an arc that matches the center point of the threading frame 2. The number of rear-position line-changing groups matches the number of power cable sub-lines, and a pressure spring frame 12 is installed between the transformer guide wheel group 6 and the pressure guide wheel group 5 in the rear-position line-changing groups between adjacent positions. The pressure spring frames 12 are symmetrically arranged along the conduction direction of the power cable, and the pressure spring frames 12 are curved arch-shaped in the direction away from each other. A small liquid jacket 10 that matches the conduction direction of the power cable is installed in the middle section of the two pressure spring frames 12, and piston guide rods corresponding to the pressure spring frames 12 are arranged at both ends of the small liquid jacket 10, and an oil chamber is opened in the small liquid jacket 10, and an oil ring 11 is connected between each oil chamber.

[0037] Solution Description: Refer to Figures 3 to 6 To illustrate, in the conventional method, the sub-line passes through the threading frame 2 in a completely horizontal direction. If continuous transmission is carried out in this way, it is difficult to timely detect the tension change of the sub-line. To this end, this embodiment improves the sub-line transmission process by providing a fixed guide wheel group 4, a pressure guide wheel group 5 and a voltage-changing guide wheel group 6. The three are essentially wire guide wheels, wherein the fixed guide wheel group 4 is installed in a fixed manner, and its purpose is to maintain the sub-line passing through the threading frame 2 in a completely horizontal direction. However, the pressure guide wheel group 5 and the voltage-changing guide wheel group 6 are arranged in the opposite direction of the fixed guide wheel group 4 corresponding to the power cable pulling process;

[0038] by Figure 4 For example, the sub-line is not kept completely horizontal with respect to the pressure guide wheel group 5 and the fixed guide wheel group 4. Specifically, the sub-line is "pressed" on the pressure guide wheel group 5 by the variable pressure guide wheel group 6, so that the sub-line has a certain curvature in the conduction process. Figure 4 The setting direction of the three is that the pressure guide wheel group 5 and the pressure-changing guide wheel group 6 are set counterclockwise relative to the threading frame 2. Then, when a certain sub-line has a significant tension change, the pressure-changing guide wheel group 6 tends to slide counterclockwise on the threading frame 2.

[0039] In combination with the above content, it is further explained that: when the tension on the sub-line tends to increase, a pressure spring frame 12 is provided between the pressure guide wheel group 5 and the pressure-changing guide wheel group 6 between adjacent positions. Then, when the pressure-changing guide wheel group 6 slides counterclockwise on the threading frame 2, the force transmission process through the pressure spring frame 12 will further generate a counterclockwise "thrust" on the pressure guide wheel group 5 at the adjacent position, thereby causing the pressure guide wheel group 5 to show a rotation trend on the fixed guide wheel group 4, so that the pressure guide wheel group 5 and the pressure-changing guide wheel group 6 have a relative displacement process of sliding and rotating. Because the number of the overall rear-position line-changing components is exactly the same as the number of sub-lines, each rear-position line-changing component can be connected into an integrated structure through the pressure spring frame 12, resulting in each rear-position line-changing component cooperating with each other;

[0040] Specifically, when the voltage-transforming guide wheel group 6 at a certain position slides counterclockwise due to the change in sub-line tension, the force transmission process through the pressure-bearing spring frame 12 will also drive the pressure-bearing guide wheel group 5 in the next rear-position line-changing assembly to rotate on the fixed guide wheel group 4. Conversely, when the tension of a certain sub-line tends to decrease, the "thrust" on the voltage-transforming guide wheel group 6 will decrease. Then the voltage-transforming guide wheel group 6 in the adjacent position will further balance the tension change of the sub-line through the force transmission process of the pressure-bearing spring frame 12-pressure-bearing guide wheel group 5, thereby also affecting the voltage-transforming guide wheel group 6 in the next rear-position line-changing assembly. It can be directly understood that when there is an obvious tension change in a certain sub-line, the sub-line conduction process in the remaining positions will be changed in a mutually coordinated direction to avoid the problem of slack or over-stretching of the sub-line due to tension change.

[0041] Further restricting the setting direction and bending direction of the pressure spring frame 12 is essentially to restrict the pressure spring frame 12 to bend and deform only along the pulling direction of the power cable, so as to Figure 4 For example, when the pressure-changing guide wheel group 6 is close to the pressure-bearing guide wheel group 5 in another position, the two pressure-bearing spring frames 12 can only bend and deform outward at the same time. During the installation process, after multiple rear-position line-changing components are installed, each pressure-bearing spring frame 12 is already in the deformation process and has a tendency to reset to the small liquid jacket 10. For this, the two piston guide rods slide in the same direction inside the small liquid jacket 10, squeezing out the hydraulic oil medium in the oil chamber. However, because each small liquid jacket 10 is connected through the oil ring 11, the squeezed hydraulic oil medium will be "evenly distributed" to the small liquid jackets 10 in other positions, thereby further improving the coordination of each rear-position line-changing component.

[0042] Example 3: Based on Example 2, the front clamping process is described:

[0043] The wire pressing cone sleeve 7 is located at the outer wall position of the wire cone 9, and the outer wall of the wire cone 9 and the inner wall position of the wire pressing cone sleeve 7 are respectively provided with a small wire groove 13 and a large wire groove 14 corresponding to the sub-wire. The energized electromagnetic ring group 8 is located at the outer wall position of the wire pressing cone sleeve 7, the inner wall diameter of the small wire groove 13 is equal to the outer diameter of the sub-wire, and the inner wall diameter of the large wire groove 14 is larger than the outer diameter of the sub-wire. A directional sliding sleeve 15 perpendicular to the outer surface of the wire cone 9 is installed at the position of the wire pressing cone sleeve 7 corresponding to the large wire groove 14. The directional sliding sleeve 15 is linearly equidistantly arranged along the length direction of the large wire groove 14. A permanent magnetic bead 16 that cooperates with the energized electromagnetic ring group 8 is provided in the directional sliding sleeve 15, and an exposure opening corresponding to the permanent magnetic bead 16 is opened at the lower end position of the directional sliding sleeve 15, and the diameter of the exposure opening is smaller than the outer diameter of the permanent magnetic bead 16.

[0044] Solution Description: Refer to Figures 7 to 9 To explain, the sub-wires will be wound on the busbar in a gradually approaching form. For this purpose, a conductor frustum 9 is added to cooperate with the tilting process of the sub-wires. Its essence is to open a small wire groove 13 on the conductor frustum 9 that completely matches the sub-wires, and the conductor frustum 9 is installed on the threading frame 2 so that it can rotate synchronously, so the sub-wires will not be separated from the small wire groove 13. The inner wall of the wire pressing cone 7 completely matches the outer wall of the wire frustum 9 and also rotates synchronously. However, the inner wall diameter of the large wire groove 14 on the wire pressing cone 7 is slightly larger than the diameter of the sub-wire. In order to stably maintain the position of the sub-wire on the conductor frustum 9, the position of the sub-wire is not maintained by the large wire groove 14;

[0045] The key lies in: the squeezing force of the permanent magnetic beads in the directional sleeve 15 on the sub-wire, and for this it is necessary to ensure that each directional sleeve 15 is set in a direction completely perpendicular to the outer wall of the conductor frustum 9. Because the wire pressing cone sleeve 7 rotates synchronously with the conductor frustum 9, each directional sleeve 15 can also be understood as being perpendicular to the sub-wire. When the wire pressing cone sleeve 7 rotates, the energized electromagnetic ring group 8 is energized, resulting in a repulsive force between the permanent magnetic beads 16 and the energized electromagnetic ring group 8, thereby generating a movement process close to the sub-wire. However, it is necessary to ensure that the permanent magnetic beads 16 will not detach from the directional sleeve 15, thereby limiting the diameter of the exposed opening at its lower end, and ensuring that the permanent magnetic beads 16 are partially exposed from the exposed opening and will not completely detach;

[0046] This can be directly understood as: by increasing the energized circuit of the energized electromagnetic ring group 8, the repulsive force of the permanent magnetic beads 16 can be increased, and the pressing force on the sub-line can be increased to maintain the sub-line position before the winding action.

[0047] In summary: improvements are made to the sub-wire conduction process during the twisting of power cables, which are specifically manifested in the rear-position line changing process and the front-position line clamping process during the sub-wire conduction process. The essence of the rear-position line changing process is to change the bending degree of the sub-wire through multiple sets of guide wheel groups on the basis of not interfering with the normal conduction of the sub-wire, and to cooperate with the number of sub-wires. The tension change during the sub-wire conduction process is used to change the movement form of the guide wheel group, so that the tension fluctuation degree that may exist at a certain point is "evenly shared" by all the sub-wires, avoiding the large tension fluctuation of a single sub-wire affecting the overall twisting process. The front-position line clamping process will not interfere with the winding process of the sub-wire, but will use the change of magnetic force to improve the clamping force of the permanent magnetic beads on the sub-wire, thereby maintaining the twisting quality of the sub-wire, and the front and rear sets of processes cooperate to complete the twisting.

[0048] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A power cable stranding processing device with an anti-damage tension adjustment mechanism, comprising a rotating base (1), a threading frame (2) and a traction base (3), characterized in that: The power cable is conducted along the direction from the threading frame (2) to the traction base (3), a front clamping group is provided between the traction base (3) and one end of the threading frame (2), and a rear changing group is provided at the other end of the threading frame (2); The rear position line changing group is composed of a fixed guide wheel group (4), a pressure guide wheel group (5) and a voltage-changing guide wheel group (6); the fixed guide wheel group (4) and the pressure guide wheel group (5) are rotatably connected, and the center points of the fixed guide wheel group (4) and the pressure guide wheel group (5) are not on the same linear axis; the pressure guide wheel group (5) and the voltage-changing guide wheel group (6) are tangent to each other; the sub-wire in the power cable is located between the pressure guide wheel group (5) and the voltage-changing guide wheel group (6); the front position line clamping group includes a conductor cone (9), an energized electromagnetic ring group (8) and a wire pressing cone sleeve (7); the sub-wire in the power cable is located in the middle position between the conductor cone (9) and the wire pressing cone sleeve (7); the conductor cone (9), the wire pressing cone sleeve (7) and the wire threading frame (2) rotate synchronously; The number of rear-position line-changing groups matches the number of power cable sub-lines, and pressure spring frames (12) are installed between the transformer guide wheel group (6) and the pressure guide wheel group (5) in the rear-position line-changing groups between adjacent positions. The pressure spring frames (12) are symmetrically arranged along the power cable conduction direction, and the pressure spring frames (12) are in a curved arch shape along the direction away from each other. Small liquid jackets (10) matching the power cable conduction direction are installed at the middle positions of the two pressure spring frames (12). Piston guide rods corresponding to the pressure spring frames (12) are arranged at both ends of the small liquid jackets (10), and an oil cavity is opened in the small liquid jacket (10). An oil ring (11) is connected between each of the oil cavities.

2. The power cable stranding processing device with a damage-proof tension adjustment mechanism according to claim 1, characterized in that: The threading frame (2) rotates at a constant speed in a directional manner on the rotating base (1); the busbar in the power cable passes through the center point of the threading frame (2); a mounting platform (17) is provided between the threading frame (2) and the traction base (3); the energized electromagnetic ring group (8) is fixedly mounted on the mounting platform (17); a gear transmission structure is provided on the mounting platform (17); and the wire pressing cone sleeve (7) is rotatably connected to the mounting platform (17) through the gear transmission structure.

3. The power cable stranding processing device with a damage-proof tension adjustment mechanism according to claim 1, characterized in that: The wire pressing cone sleeve (7) is located on the outer wall of the conductor cone (9), and small wire grooves (13) and large wire grooves (14) corresponding to the sub-wires are respectively opened on the outer wall of the conductor cone (9) and the inner wall of the wire pressing cone sleeve (7), and the energized electromagnetic ring group (8) is located on the outer wall of the wire pressing cone sleeve (7).

4. The power cable stranding processing device with a damage-proof tension adjustment mechanism according to claim 3, characterized in that: The inner wall diameter of the small wire trough (13) is equal to the outer diameter of the sub-wire, and the inner wall diameter of the large wire trough (14) is larger than the outer diameter of the sub-wire. A directional sliding sleeve (15) perpendicular to the outer surface of the conductor cone (9) is installed at a position of the wire pressing cone sleeve (7) corresponding to the large wire trough (14). The directional sliding sleeve (15) is linearly and equidistantly arranged along the length direction of the large wire trough (14).

5. The power cable stranding processing device with a damage-proof tension adjustment mechanism according to claim 4, characterized in that: The directional sliding sleeve (15) is provided with a permanent magnetic bead (16) that cooperates with the energized electromagnetic ring group (8), and a revealing opening corresponding to the permanent magnetic bead (16) is opened at the lower end of the directional sliding sleeve (15), and the diameter of the revealing opening is smaller than the outer diameter of the permanent magnetic bead (16).

6. The power cable stranding processing device with a damage-proof tension adjustment mechanism according to claim 1, characterized in that: The fixed guide wheel group (4) is fixedly connected to the threading frame (2), the voltage-changing guide wheel group (6) is slidably connected to the threading frame (2), and the sliding direction of the voltage-changing guide wheel group (6) is an arc that matches the center point of the threading frame (2).

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