An insulation layer stripping device for direct current cable construction

Abstract

The application relates to the technical field of cable stripping, and particularly discloses an insulation layer stripping device for direct-current cable construction, which comprises a mounting table, a pulling mechanism, a cutting mechanism, a ring cutting mechanism and an electric control panel arranged on the mounting table, and the cutting mechanism is located between the pulling mechanism and the ring cutting mechanism. The pulling mechanism in the application can fix and convey the cable, then the cutting mechanism is used for accurately cutting the insulation layer of the cable in the length direction, and finally the ring cutting mechanism is used for completing the ring cutting, so that a series of consecutive automatic actions replace the traditional manual operation which completely depends on manual work, the construction efficiency is significantly improved, and more importantly, through the accurate control of the machine, the problem of uneven incision depth or damage to the core caused by unstable manual operation is effectively avoided, and the quality and safety of the stripping operation are ensured.

Description

Technical Field

[0001] This application relates to the field of cable stripping technology, and in particular to an insulation stripping device for DC cable construction. Background Technology

[0002] DC cables, as a key carrier for transmitting and distributing large-capacity electrical energy, are widely used in important fields such as inter-regional power grid interconnection, offshore wind power transmission, urban power grid capacity expansion and upgrading, and isolated power supply due to their advantages such as the absence of capacitive current, long transmission distance, and low loss. With the rapid development of high-voltage and ultra-high-voltage DC transmission technologies, the technological requirements for the laying, wiring, and terminal fabrication of DC cables are becoming increasingly stringent, and their construction quality directly affects the safe and stable operation of the entire power system.

[0003] During the construction of DC cables, whether making intermediate joints or installing terminations, it is necessary to accurately and completely strip the insulation layer beyond a certain length at the cable end to expose the conductor for connection. Currently, the conventional stripping method mainly relies on construction workers using manual or semi-automatic stripping tools, such as electrician's knives and wire strippers. During the operation, the construction worker first needs to circumferentially cut the cable insulation layer to the specified depth, then make a longitudinal cut along the cable axis, and finally attempt to manually tear or pry the cut insulating tubular section off the conductor.

[0004] However, when using simple tools such as electrician's knives for circumferential cutting, it is difficult to precisely control the force and depth. Cutting too deeply can easily damage the conductive or shielding layer of the wire core, while cutting too shallowly may result in incomplete severing of the insulation layer, making subsequent stripping difficult. Secondly, for cases requiring the stripping of long insulation layers, significant adhesion and friction remain between the insulation layer and the wire core after circumferential and longitudinal cutting, making it difficult to remove smoothly and completely by hand. Operators often need to use other tools to repeatedly pry, a time-consuming and laborious process that easily leaves burrs or debris at the insulation break, or scratches on the wire core surface during forced pulling. These can become potential weak points in the insulation and sources of discharge at the cable joint, seriously affecting the long-term operational reliability of the joint. Utility Model Content

[0005] To achieve labor-saving, efficient, and complete stripping of insulation layers from long cable sections, this application provides an insulation stripping device for DC cable construction.

[0006] This application provides an insulation stripping device for DC cable construction, which adopts the following technical solution: An insulation stripping device for DC cable construction includes an installation platform. The installation platform is provided with a pulling mechanism for pulling the cable end, a cutting mechanism for cutting the cable along its length, a circumferential cutting mechanism for circumferentially cutting the insulation layer of the cut cable, and an electrical control panel for controlling the pulling mechanism, the cutting mechanism, and the circumferential cutting mechanism to work sequentially according to logic. The cutting mechanism is located between the pulling mechanism and the circumferential cutting mechanism.

[0007] By adopting the above technical solution, the device first fixes and transports the cable through a pulling mechanism, then the cutting mechanism precisely cuts the cable insulation layer along its length, and finally the circumferential cutting mechanism completes the circumferential cutting. This series of continuous automated actions replaces the traditional manual operation that relies entirely on manual labor, which not only significantly improves construction efficiency, but more importantly, through the precise control of the machinery, effectively avoids the problem of uneven cutting depth or damage to the wire core caused by unstable manual operation, thus ensuring the quality and safety of the stripping operation.

[0008] Optionally, the pulling mechanism includes a power component, a mounting frame, pulling rollers, and power gears. The power component is mounted on the mounting platform, the mounting frame is mounted on the mounting platform, two pulling rollers are provided and rotatably mounted on the mounting frame, a gap is reserved between the two pulling rollers for the cable to pass through, the output end of the power component is coaxially fixed to the end of one of the pulling rollers, and two power gears are provided corresponding to the two pulling rollers and rotatably mounted on the ends of the corresponding pulling rollers, and the two power gears mesh with each other.

[0009] By adopting the above technical solution, the power component acts as a power source, driving one of the traction rollers to rotate. Two meshing power gears synchronously transmit power to the two traction rollers, enabling them to rotate in opposite directions. This ensures that the two traction rollers can reliably clamp the cable from both above and below or left and right, providing a stable linear traction force through friction. This allows for precise control of cable feeding or fixation during cutting and circumferential cutting, providing a stable foundation for the precise operation of the cutting and circumferential cutting mechanisms and preventing cable slippage or deviation during processing.

[0010] Optionally, the cutting mechanism includes a cutting frame, a cutting seat, a cutting adjustment rod, and a cutting head. The cutting frame is fixed on the mounting platform. Multiple sets of the cutting seat, cutting adjustment rod, and cutting head are provided for circumferentially cutting the cable at intervals. The cutting seat is fixed on the cutting frame. The cutting adjustment rod is fixed to the cutting seat at an adjustable angle. The cutting head is fixed to one end of the cutting adjustment rod from the cutting seat at an adjustable angle. Each cutting head can cut the insulation layer to a consistent depth along the length of the cable.

[0011] By adopting the above technical solution and adjusting the angle of each cutting adjustment rod and cutting head, all cutting heads can be aligned with the cable in the best position, ensuring that the depth of cutting into the insulation layer remains consistent. This multi-point, multi-angle synchronous cutting method can form multiple uniform, equal-depth longitudinal cuts in the cable insulation layer at one time, greatly weakening the overall bonding force between the insulation layer and the wire core, creating decisive conditions for the subsequent complete and smooth stripping of the insulation layer.

[0012] Optionally, the circumferential cutting mechanism includes a circumferential cutting seat, a circumferential cutting adjustment seat, a circumferential cutting head, and a driving assembly. The circumferential cutting seat is rotatably mounted on the mounting platform, the circumferential cutting adjustment seat is fixedly mounted on the circumferential cutting seat, and the circumferential cutting head is adjustablely fixedly mounted on the circumferential cutting adjustment seat. The driving assembly is used to drive the circumferential cutting head to perform circumferential cutting of the cable.

[0013] By adopting the above technical solution, the drive component rotates the circumferential cutting seat, causing the circumferential cutting adjustment seat and the circumferential cutting head fixed thereon to revolve around the cable together, thereby achieving circumferential cutting of the cable insulation layer by the circumferential cutting head. Combined with the adjustable circumferential cutting adjustment seat, the cutting depth of the circumferential cutting head can be precisely controlled, ensuring that the insulation layer is completely cut off without damaging the internal wire core. Finally, combined with the longitudinal cutting completed by the cutting mechanism, the insulation layer that needs to be stripped is completely separated.

[0014] Optionally, the drive assembly includes a drive gear ring, a drive wheel, and a drive component. The drive gear ring is coaxially fixed on the ring-cut seat, the drive component is fixed on the mounting platform, and the drive wheel is coaxially fixed on the output end of the drive component. The drive wheel meshes with the drive gear ring.

[0015] By adopting the above technical solution, the gear transmission method efficiently and accurately converts the rotational motion of the drive component into a stable and continuous rotation of the circumferential cutting seat, providing smooth and reliable circumferential cutting power for the circumferential cutting head. Compared with other transmission methods, this structure has a constant transmission ratio and precise motion control, ensuring a smooth and flat circumferential cut without burrs or tears, further improving the final quality of the peeling operation.

[0016] In summary, this application includes at least one of the following beneficial technical effects: This application integrates the pulling mechanism, cutting mechanism, and circumferential cutting mechanism on the mounting platform and uses a programmed logic control panel to realize the full-process mechanized operation from cable fixing and transportation, longitudinal cutting to circumferential cutting. This not only frees operators from heavy and skill-intensive work and greatly improves construction efficiency, but more importantly, by replacing manual labor with machinery, it fundamentally eliminates quality and safety hazards such as uncontrolled cutting depth and damage to the wire core caused by differences in operator skills or fatigue, and ensures the standardization and high reliability of the stripping results. This application employs multiple independently adjustable cutting head units, enabling precise longitudinal cutting of equal depth around the cable circumference. This fundamentally undermines the integrity of long insulation layers, significantly weakening their adhesion to the conductor. Simultaneously, the pulling mechanism, driven by a double pulling roller design with gear meshing, provides stable and reliable clamping and conveying power. The circumferential cutting mechanism achieves smooth circumferential cutting through precise gear transmission. These designs work together to ensure complete, smooth, and clean peeling even for long, tightly adhered insulation layers, effectively solving the technical bottlenecks of traditional methods, such as laborious peeling and easy tearing or residue of the insulation layer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the stripping device in the embodiments of this application; Figure 2 yes Figure 1 A partial structural diagram of the stripping device; Figure 3 yes Figure 2 Schematic diagram of the structure at the cutting mechanism; Figure 4 This is a first-person view structural diagram of the ring-cutting mechanism; Figure 5 This is a structural schematic diagram of the ring-cutting mechanism from a second perspective.

[0018] Reference numerals in the attached drawings: 1. Mounting platform; 2. Pulling mechanism; 21. Power component; 22. Mounting frame; 23. Pulling roller; 24. Power gear; 3. Cutting mechanism; 31. Cutting frame; 32. Cutting seat; 33. Cutting adjusting rod; 34. Cutting head; 4. Ring cutting mechanism; 41. Ring cutting seat; 42. Ring cutting adjusting seat; 43. Ring cutting cutter head; 44. Drive gear ring; 45. Drive wheel; 46. Drive component; 5. Electrical control panel. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail below.

[0020] This application discloses an insulation stripping device for DC cable construction.

[0021] Reference Figure 1 and Figure 2 An insulation stripping device for DC cable construction includes a mounting platform 1, on which are mounted a pulling mechanism 2 for pulling the cable end, a cutting mechanism 3 for cutting the cable along its length, a circumferential cutting mechanism 4 for circumferentially cutting the insulation layer of the cut cable, and an electrical control panel 5 for controlling the pulling mechanism 2, the cutting mechanism 3 and the circumferential cutting mechanism 4 to work sequentially according to logic. The cutting mechanism 3 is located between the pulling mechanism 2 and the circumferential cutting mechanism 4.

[0022] The device first fixes and transports the cable through the pulling mechanism 2, then the cutting mechanism 3 precisely cuts the cable insulation layer along its length, and finally the circumferential cutting mechanism 4 completes the circumferential cutting. This series of continuous automated actions replaces the traditional manual operation that relies entirely on manual labor. This not only significantly improves construction efficiency, but more importantly, through the precise control of the machinery, it effectively avoids problems such as uneven cutting depth or damage to the wire core caused by unstable manual operation, thus ensuring the quality and safety of the stripping operation.

[0023] Reference Figure 1 and Figure 2 The pulling mechanism 2 includes a power component 21, a mounting frame 22, a pulling roller 23, and a power gear 24. The power component 21 is a servo motor. In other embodiments, a stepper motor or a geared motor may also be used. The power component 21 is mounted on the mounting platform 1, and the mounting frame 22 is mounted on the mounting platform 1. Two pulling rollers 23 are provided and are rotatably mounted on the mounting frame 22. A gap is reserved between the two pulling rollers 23 for the cable to pass through. The output end of the power component 21 is coaxially fixed with the end of one of the pulling rollers 23. Two power gears 24 are provided corresponding to the two pulling rollers 23 and are rotatably mounted on the ends of the corresponding pulling rollers 23. The two power gears 24 mesh with each other.

[0024] The power unit 21 serves as the power source, driving one of the traction rollers 23 to rotate. Two meshing power gears 24 synchronously transmit power to both traction rollers 23, enabling them to rotate in opposite directions. This ensures that the two traction rollers 23 can reliably clamp the cable from both above and below or left and right, providing a stable linear traction force through friction. This allows for precise control of cable feeding or fixation during cutting and circumferential cutting, providing a stable foundation for the precise operation of the cutting mechanism 3 and the circumferential cutting mechanism 4, and preventing cable slippage or deviation during processing.

[0025] Reference Figure 2 and Figure 3The cutting mechanism 3 includes a cutting frame 31, a cutting seat 32, a cutting adjustment rod 33, and a cutting head 34. The cutting frame 31 is fixed on the mounting platform 1. Multiple sets of the cutting seat 32, the cutting adjustment rod 33, and the cutting head 34 are provided for circumferentially cutting the cable at intervals. The cutting seat 32 is fixed on the cutting frame 31. The cutting adjustment rod 33 is fixed on the cutting seat 32 at an adjustable angle. The cutting head 34 is fixed at one end of the cutting adjustment rod 33 from the cutting seat 32 at an adjustable angle. Each cutting head 34 can cut the insulation layer to a consistent depth along the length of the cable.

[0026] Adjusting the angle of each cutting adjustment rod 33 and cutting head 34 allows all cutting heads 34 to be aligned with the cable in the optimal position, ensuring a consistent depth of cut into the insulation layer. This multi-point, multi-angle synchronous cutting method can create multiple uniform, equal-depth longitudinal cuts in the cable insulation layer at once, greatly weakening the overall bonding force between the insulation layer and the wire core, thus creating decisive conditions for the subsequent complete and smooth stripping of the insulation layer.

[0027] Reference Figure 2 and Figure 4 The circumferential cutting mechanism 4 includes a circumferential cutting seat 41, a circumferential cutting adjustment seat 42, a circumferential cutting head 43, and a drive assembly. The circumferential cutting seat 41 is rotatably mounted on the mounting platform 1, the circumferential cutting adjustment seat 42 is fixedly mounted on the circumferential cutting seat 41, and the circumferential cutting head 43 is adjustablely fixedly mounted on the circumferential cutting adjustment seat 42. The drive assembly is used to drive the circumferential cutting head 43 to perform circumferential cutting of the cable.

[0028] The drive assembly rotates the circumferential cutting seat 41, causing the circumferential cutting adjustment seat 42 and the circumferential cutting head 43 fixed thereon to revolve around the cable together, thereby achieving circumferential cutting of the cable insulation layer by the circumferential cutting head 43. Combined with the adjustable circumferential cutting adjustment seat 42, the cutting depth of the circumferential cutting head 43 can be precisely controlled, ensuring that the insulation layer is completely cut off without damaging the internal wire core. Finally, combined with the longitudinal cutting completed by the cutting mechanism 3, the insulation layer that needs to be stripped is completely separated.

[0029] Reference Figure 5 The drive assembly includes a drive gear ring 44, a drive wheel 45, and a drive component 46. The drive gear ring 44 is coaxially fixed on the ring cutter seat 41. The drive component 46 is a servo motor and is fixed on the mounting platform 1. The drive wheel 45 is coaxially fixed on the output end of the drive component 46 and meshes with the drive gear ring 44.

[0030] The gear transmission efficiently and precisely converts the rotational motion of the drive component 46 into a stable and continuous rotation of the circumferential cutting seat 41, providing smooth and reliable circumferential cutting power for the circumferential cutting head 43. Compared with other transmission methods, this structure has a constant transmission ratio and precise motion control, ensuring a smooth and flat circumferential cut without burrs or tears, further improving the final quality of the stripping operation.

[0031] The implementation principle of the insulation stripping device for DC cable construction according to the embodiments of this application is as follows: During operation, the operator first sets the program and starts the device through the electronic control panel 5. Subsequently, the pulling mechanism 2 starts to work, and its power component 21 drives two pulling rollers 23 to rotate in opposite directions through a pair of meshing power gears 24, stably clamping the cable and pulling it to the predetermined processing position.

[0032] Next, the cutting mechanism 3 starts to operate, and its multiple cutting heads 34 act on the cable simultaneously after adjustment, cutting several longitudinal cuts of consistent depth and even distribution along the length of the insulation layer surface, so that the complete insulation layer is cut into multiple long strips and separate shapes, which facilitates separation from the battery core and facilitates subsequent circumferential cutting to quickly remove the insulation layer.

[0033] After the longitudinal cutting is completed, the circumferential cutting mechanism 4 starts to work under the drive of the drive component. The drive component 46 drives the entire circumferential cutting seat 41 to rotate the circumferential cutting head 43 around the cable at a uniform speed through the meshing of the drive wheel 45 and the drive gear ring 44, thereby performing precise circumferential cutting on the insulation layer. This cuts multiple long strips of insulation layer into shorter lengths, thereby enabling the insulation layer to be quickly separated from the internal battery cell, which greatly improves the stripping efficiency in long-distance stripping scenarios.

[0034] Finally, the insulation layer segment, which has been completely separated by longitudinal and circumferential cutting, can be easily detached from the wire core under the continuous traction force of the pulling mechanism 2 or the action of auxiliary external force, thus completing the entire stripping process.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An insulation stripping device for DC cable construction, characterized in that: The device includes a mounting platform (1), on which are provided a pulling mechanism (2) for pulling the cable end, a cutting mechanism (3) for cutting the cable along its length, a circumferential cutting mechanism (4) for circumferentially cutting the insulation layer of the cut cable, and an electrical control panel (5) for controlling the pulling mechanism (2), the cutting mechanism (3) and the circumferential cutting mechanism (4) to work sequentially according to logic. The cutting mechanism (3) is located between the pulling mechanism (2) and the circumferential cutting mechanism (4).

2. The insulation stripping device for DC cable construction according to claim 1, characterized in that: The pulling mechanism (2) includes a power component (21), a mounting frame (22), a pulling roller (23), and a power gear (24). The power component (21) is mounted on the mounting platform (1), and the mounting frame (22) is mounted on the mounting platform (1). There are two pulling rollers (23), both of which are rotatably mounted on the mounting frame (22). A gap is reserved between the two pulling rollers (23) for the cable to pass through. The output end of the power component (21) is coaxially fixed with the end of one of the pulling rollers (23). There are two power gears (24) corresponding to the two pulling rollers (23), and they are rotatably mounted on the ends of the corresponding pulling rollers (23). The two power gears (24) mesh with each other.

3. The insulation stripping device for DC cable construction according to claim 2, characterized in that: The cutting mechanism (3) includes a cutting frame (31), a cutting seat (32), a cutting adjustment rod (33), and a cutting head (34). The cutting frame (31) is fixed on the mounting platform (1). Multiple sets of the cutting seat (32), the cutting adjustment rod (33), and the cutting head (34) are provided for circumferentially cutting the cable at intervals. The cutting seat (32) is fixed on the cutting frame (31). The cutting adjustment rod (33) is fixed on the cutting seat (32) at an adjustable angle. The cutting head (34) is fixed at one end of the cutting adjustment rod (33) away from the cutting seat (32) at an adjustable angle. Each cutting head (34) can cut the insulation layer to a consistent depth along the length of the cable.

4. The insulation stripping device for DC cable construction according to claim 1, characterized in that: The circumferential cutting mechanism (4) includes a circumferential cutting seat (41), a circumferential cutting adjustment seat (42), a circumferential cutting head (43), and a driving assembly. The circumferential cutting seat (41) is rotatably mounted on the mounting platform (1). The circumferential cutting adjustment seat (42) is fixedly mounted on the circumferential cutting seat (41). The circumferential cutting head (43) is adjustablely fixedly mounted on the circumferential cutting adjustment seat (42). The driving assembly is used to drive the circumferential cutting head (43) to perform circumferential cutting of the cable.

5. The insulation stripping device for DC cable construction according to claim 4, characterized in that: The drive assembly includes a drive gear ring (44), a drive wheel (45), and a drive member (46). The drive gear ring (44) is coaxially fixed on the ring cut seat (41), the drive member (46) is fixed on the mounting platform (1), and the drive wheel (45) is coaxially fixed on the output end of the drive member (46). The drive wheel (45) meshes with the drive gear ring (44).

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