A method of repairing a single strand belted cable

Abstract

The application discloses a kind of single strand with sheath cable's repair method, a kind of single strand with sheath cable's repair method: step one: confirm the cable required repair position, according to the size of required repair selected several repair bands;Step two: the repair band is along the braiding direction of cable and is inserted into a rope required to be repaired, at this time, the rope required to be repaired is gradually covered by repair band;Step three: the repair band is along the path of the rope required to be repaired and continues to be inserted;Step four: continue to repeat the above step two and step three, the repair band is continuously inserted on the cable;Step five: when the repair band realizes the complete coverage of the rope, the repair band can be straightened by artificial, and the two ends of the repair band are inserted into the core of the rope, the two ends of the repair band are fixed, the existing cable is damaged on the outer skin, and the cable with intact internal bearing cannot be repaired, so that only waste treatment can be carried out, which is not conducive to economic cost, and causes resource waste.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to a method for repairing a single-strand sheathed cable. Background Technology

[0002] Synthetic fiber ropes are ropes or cables made from chemical fibers (such as polyester, nylon, polypropylene, and ultra-high molecular weight polyethylene fibers) through weaving, stranding, or other processing techniques. They are a type of flexible connection and securing tool widely used in various fields such as shipbuilding, marine engineering, industrial hoisting, and transportation. Because the ropes come into contact with equipment on board during use, their surfaces experience wear and tear.

[0003] Existing twelve-strand cables typically employ a single-strand sheathed structure, meaning each strand is woven with a sheath to enhance its strength. However, after prolonged use, the outer sheath often wears down or breaks, failing to protect the inner strands. This allows the inner strands to directly contact the equipment, leading to their own wear and tear. Discarding cables with only outer sheath damage while the internal load-bearing components remain intact would result in significant resource waste. Current solutions typically involve repairing the damaged area by wrapping it with thin rope, but this process is complex, costly, and time-consuming. To address these issues, a solution is proposed below. Summary of the Invention

[0004] The purpose of this invention is to provide a method for repairing single-strand sheathed cables, thereby solving the problems mentioned in the background section.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A method for repairing a single-strand sheathed cable includes the following steps: Step 1: Identify the location of the cable to be repaired, and select several repair strips according to the required repair size. The length of the repair strips should be 1.2-1.5 times the length of the location to be repaired. Step 2: Pass the repair tape along the weaving direction of the cable through one of the strands that needs to be repaired. At this time, the strand that needs to be repaired will be gradually covered by the repair tape. The repair tape will wrap the exposed core inside the strand. When the repair tape just passes through the cable, the repair tape will be pressed together by the two strands. Step 3: Continue to weave the repair tape along the path of the rope strands that need to be repaired. At this time, the repair tape will be compressed by the four rope strands. The repair tape achieves a tight fit with the cable through the compression of each rope strand. Step 4: Continue repeating steps 2 and 3 above, continuously weaving the repair tape through the cable so that the repair tape can completely cover the worn areas of the rope strands, thus protecting the worn areas of the rope strands. Step 5: Once the repair tape has completely covered the rope strands, the repair tape can be straightened manually, and both ends of the repair tape can be inserted into the inner core of the rope strands to fix the ends of the repair tape, thereby completing the repair of the cable.

[0006] Preferably, in step one, the repair tape material is selected from ultra-high molecular weight polyethylene fiber, polyester fiber, polyamide fiber, aramid fiber, or LCP fiber.

[0007] Preferably, the repair tape is plain woven, with a thickness of 2.0~2.5mm, and the width of the repair tape is the same as the circumference of the cable strands.

[0008] Preferably, in step two, in order to better wrap the repair tape around the rope strands, the rope strands can be pried open with a conical rod to facilitate the threading of the repair tape onto the rope strands.

[0009] Preferably, in step four, at least one repair tape is wrapped around the outside of the rope strands, and the number of repair tapes is selected according to the actual damage to the rope strands.

[0010] Preferably, in step five, after the cable is repaired, it is pre-tensioned to ensure that the cable is subjected to uniform force.

[0011] Beneficial effects: By repairing worn sections of the cable, the need for complete discarding due to rapid wear of the internal cable caused by outer sheath damage can be avoided, allowing the cable to continue to be used, thus effectively extending its service life, reducing equipment replacement frequency, and lowering long-term operating costs. The repair tape is made of high-strength materials such as ultra-high molecular weight polyethylene fiber, and uses a plain weave with moderate thickness to tightly wrap the strands and bond with the cable. The repair does not reduce the cable's strength, but rather slows down the decline in cable strength, meeting long-term use requirements and preventing further damage due to insufficient strength after repair. The repair process is clear and straightforward, involving operations such as prying open the strands and inserting the repair tape along the weave direction, making it easy to perform manually without complex equipment or cumbersome procedures. Repairs can be completed quickly on-site, reducing downtime and improving production efficiency. The number of repair tapes can be flexibly adjusted according to the actual degree of damage to the strands, meeting the needs of repairing minor wear as well as effectively handling more severe damage. It has a wide range of applications and is highly targeted, providing an effective solution for different types and degrees of cable damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram showing the state of the cable after repair. Figure 2This is a schematic diagram illustrating the process of cable repair as an example. Detailed Implementation

[0013] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be considered within the protection scope of the present invention. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the protection scope of the present invention.

[0014] See Figure 1 As shown, a method for repairing a single-strand sheathed cable includes the following steps: Step 1: Confirm the location of the cable to be repaired. Select several repair strips according to the required repair size. The length of the repair strip should be 1.2 times the length of the location to be repaired. By designing the repair strip to be longer than the location to be repaired, it is possible to fully cover the worn area, ensuring that the damaged area of ​​the rope strands is wrapped by the repair strip, avoiding any omissions of damaged parts, thereby effectively protecting the damaged rope strands and preventing further deterioration. When the length of the repair strip is appropriate, it can better compress and combine with the rope strands during the insertion process, and the two ends can be more firmly fixed after being inserted into the rope core, making it less prone to loosening or displacement, ensuring the stability of the repair effect. This length ensures that the repair strip can fully cover the damaged area, without being too long and making the repair strip difficult to handle in subsequent operations, or too short and failing to effectively wrap, thereby improving the reliability of the repair and ensuring the performance and safety of the repaired cable.

[0015] The repair tape is made of ultra-high molecular weight polyethylene fiber material. The repair tape is plain woven and 2.5mm thick. The width of the repair tape is the same as the circumference of the cable strands. The repair tape is made of high-strength materials such as ultra-high molecular weight polyethylene fiber and is plain woven with moderate thickness. It can tightly wrap the strands and bond tightly with the cable. The repaired cable has high strength and can meet the needs of long-term use, avoiding damage due to insufficient strength after repair. Step 2: Pass the repair tape along the weaving direction of the cable through one of the strands that needs to be repaired. At this time, the strand to be repaired will be gradually covered by the repair tape, which will wrap around the exposed core inside the strand. When the repair tape just passes through the cable, it will be pressed tightly by the two strands. In order to better wrap the repair tape around the strand, the strand can be pried open with a tapered rod to facilitate the insertion of the repair tape on the strand. Step 3: Continue to weave the repair tape along the path of the rope strands that need to be repaired. At this time, the repair tape will be compressed by the four rope strands. The repair tape achieves a tight fit with the cable through the compression of each rope strand. Step 4: Continue repeating steps 2 and 3 above, continuously weaving the repair tape through the cable so that the repair tape completely covers the worn areas of the strands. The repair tape protects the worn areas of the strands. There are a total of 3 repair tapes wrapped around the outside of the strands. The number of repair tapes can be flexibly adjusted according to the actual damage to the strands. It can meet the repair needs of minor wear and also effectively handle more serious damage. It has a wide range of applications and is highly targeted, providing an effective solution for different types and degrees of cable damage. Step 5: After the repair tape has completely covered the rope strands, the repair tape can be straightened manually and both ends of the repair tape can be inserted into the inner core of the rope strands to fix the two ends of the repair tape, thereby completing the repair of the cable. After the cable is repaired, it is pre-tensioned to ensure that the cable is evenly stressed.

[0016] As shown in Table 1, laboratory tests on 40mm single-strand high-modulus polyethylene cables with sheaths revealed that the breaking tensile strength of the new cable was 95.2t. After the single-strand sheath of the cable was worn down and repaired using this patented technology, the cable strength was not significantly reduced.

[0017] Table 1. Comparison of strength of 40mm single-strand sheathed cable before and after repair 1 point of wear 95.2 95.8 3 places of wear 95.2 95.0 5 places of wear 95.2 95.5 Experimental results show that the proposed repair method can effectively restore the strength of single-strand sheathed cables. The strength of the repaired cable is basically the same as before the damage. Even with wear in multiple places, the cable strength can still maintain the original strength level. This fully verifies the effectiveness and reliability of the repair method, indicating that the repaired cable can continue to be used and meet long-term service requirements. It avoids the complete scrapping of the cable due to outer sheath damage, effectively reducing the frequency of equipment replacement and long-term service costs. At the same time, the repair process is simple to operate, requiring no complex equipment or cumbersome procedures, and can be completed quickly on-site, reducing downtime for maintenance and improving production efficiency.

Claims

1. A method for repairing a single-strand sheathed cable, characterized in that, Includes the following steps: Step 1: Identify the location of the cable to be repaired, and select several repair strips according to the required repair size. The length of the repair strips should be 1.2-1.5 times the length of the location to be repaired. Step 2: Pass the repair tape along the weaving direction of the cable through one of the strands that needs to be repaired. At this time, the strand that needs to be repaired will be gradually covered by the repair tape. The repair tape will wrap the exposed core inside the strand. When the repair tape just passes through the cable, the repair tape will be pressed together by the two strands. Step 3: Continue to weave the repair tape along the path of the rope strands that need to be repaired. At this time, the repair tape will be compressed by the four rope strands. The repair tape achieves a tight fit with the cable through the compression of each rope strand. Step 4: Continue to repeat steps 2 and 3 above, continuously weaving the repair tape through the cable so that the repair tape can completely cover the worn areas of the rope strands, thus protecting the worn areas of the rope strands. Step 5: Once the repair tape has completely covered the rope strands, the repair tape can be straightened manually, and both ends of the repair tape can be inserted into the inner core of the rope strands to fix the ends of the repair tape, thereby completing the repair of the cable.

2. The method for repairing a single-strand sheathed cable according to claim 1, characterized in that, In step one, the selected repair tape material is ultra-high molecular weight polyethylene fiber, polyester fiber, polyamide fiber, aramid fiber, or LCP fiber.

3. The method for repairing a single-strand sheathed cable according to claim 2, characterized in that, The repair tape is plain woven, with a thickness of 2.0~2.5mm, and its width is the same as the circumference of the cable strands.

4. The method for repairing a single-strand sheathed cable according to claim 1, characterized in that, In step two, in order to better wrap the repair tape around the rope strands, the rope strands can be pried open with a tapered rod to facilitate the insertion of the repair tape onto the rope strands.

5. The method for repairing a single-strand sheathed cable according to claim 1, characterized in that, In step four, at least one repair tape is wrapped around the outside of the rope strands, and the number of repair tapes is selected according to the actual damage to the rope strands.

6. The method for repairing a single-strand sheathed cable according to claim 1, characterized in that, In step five, after the cable is repaired, it is pre-tensioned to ensure that the cable is subjected to uniform force.

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