Towing cable connected with floating mine sweeping cable
By using a combined structure of copper wire-core conductor, water-blocking belt layer, TPV insulation layer and PU outer sheath at the joints of floating minesweeping cables and streamers, the problem of vulnerability of the joint is solved and firm and tensile resistance is achieved The connection with waterproofness ensures the reliability of mine-sweeping missions.
Patent Information
- Application Number
- CN202420779598.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The joints between floating minesweeping cables and tow cables are susceptible to damage or breaking in harsh marine environments, resulting in cable failure and making it difficult to maintain a stable and reliable connection throughout the journey, especially under the influence of sea currents and surges.
A streamer is designed, including copper wire core conductor, water-blocking tape layer, TPV insulation layer, insulated wire core conductor and PU outer sheath from the inside to the outside, ensuring a firm connection and good tensile resistance and waterproofing. , improve impact resistance through specific structure and material combinations.
It realizes uniform stress and firm connection with the floating minesweeping cable, avoids breakage and water inlet failure, and ensures the reliable completion of the minesweeping task.
Smart Images
Figure CN222145822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of communications, in particular to a towing cable connected to a floating minesweeping cable. Background Art
[0002] Floating minesweeping cables are used on the 081 minesweeper, mainly to clear mines on the aircraft carrier's forward route and escort the aircraft carrier. The floating minesweeping cable is connected to the 081 ship through a tow cable, so the connection between the floating minesweeping cable and the tow cable is particularly important.
[0003] Due to the harsh working environment in the ocean and the influence of factors such as sea waves and currents, the joint between the floating minesweeping cable and the tow cable will be subjected to large alternating stress, so the joint between the floating minesweeping cable and the tow cable is easily damaged or broken, resulting in cable failure and even loss of the equipment carried on it. At the same time, in order to ensure the speed and range of the 081 minesweeper, and to maintain a stable and reliable connection throughout the voyage, and to be able to carry out minesweeping tasks, the connection of the joint must be reliable. On the other hand, the marine environment is complex and changeable, and the minesweeping cable will be impacted by different degrees of currents during navigation. The minesweeping cable itself is also heavy, so it is also necessary to improve the impact resistance and tensile strength of the joint between the floating minesweeping cable and the tow cable. Utility Model Content
[0004] The utility model aims to overcome the deficiencies in the above-mentioned background technology and to provide a towline connected to a floating minesweeping cable, which should have the characteristics of firm connection and reliable performance.
[0005] The technical solution of the utility model is:
[0006] A towline connected to a floating minesweeping cable is characterized in that the towline comprises, from the inside to the outside, a first core conductor, a tape layer, an insulating layer, a second core conductor, and an outer sheath.
[0007] The first core conductor is formed by twisting a plurality of copper wires.
[0008] The wrapping layer is formed by wrapping a water-blocking tape.
[0009] The insulating layer is made of TPV material; the thickness of the insulating layer is greater than or equal to 3.0 mm.
[0010] The second core conductor is a plurality of insulated wires twisted outside the first insulating layer; the conductors of the insulated wires are copper wires, and the insulating sleeves of the insulated wires are made of TPV material.
[0011] The outer sheath is made of PU material.
[0012] The beneficial effects of the utility model are:
[0013] The utility model can ensure uniform force and firm connection with the floating minesweeping cable, has good tensile resistance and waterproofness, and the load-bearing layer will not slip during work, and will not break, take in water and other faults, which is helpful to complete the minesweeping task. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of a floating minesweeping cable.
[0016] Figure 3 It is a schematic diagram of the connection method of the utility model.
[0017] Reference numerals:
[0018] A first core conductor 1, a tape layer 2, an insulating layer 3, a second core conductor 4, and an outer sheath 5;
[0019] Rubber strip 11, float 12, water blocking tape 13, self-adhesive sealing layer 14, inner conductor 15, TPV insulation layer 16, insulated outer conductor 17, wrapping tape 18, PU sheath 19;
[0020] Epoxy resin 21, brass wire clamp 22, small copper connecting tube 23, tinned copper wire 24, large copper connecting tube 25, insulating self-adhesive tape 26, insulating waterproof tape 27, thermoplastic tube 28, cone tube 29. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0022] like Figure 1 As shown, a towline connected to a floating minesweeping cable comprises a first core conductor 1, a tape layer 2, an insulating layer 3, a second core conductor 4, and an outer sheath 5 which are concentrically arranged in sequence from the inside to the outside.
[0023] The first core conductor is formed by twisting a plurality of copper wires. The diameter of the copper wires is 0.85 mm and the number is 1110. The copper wires are twisted in a multiple twist structure. The copper wires comply with GB3953.
[0024] The wrapping tape layer is a water-blocking tape wrapped around the outside of the first core conductor, and the wrapping tape layer can play a bundling role and a water-blocking role.
[0025] The insulating layer is made of TPV material. The density of TPV material (thermoplastic vulcanized rubber) is relatively low, which is 0.91g / cm 3, so as to ensure that the specific gravity of the cable is not too large. The thickness of the insulating layer is greater than or equal to 3.0 mm.
[0026] The second core conductor includes a plurality of insulated wires, which are surrounded by the outside of the first insulating layer and twisted into one. The number of the insulated wires is 63, and the twist coefficient is not greater than 1.05. The conductor of the insulated wire is copper wire, the diameter of the copper wire is 1.39mm, and the copper wire complies with the provisions of GB3953. The insulating sleeve of the insulated wire is made of TPV material, and the insulating sleeve is blue. The density of TPV material (thermoplastic vulcanized rubber) is relatively low, which is 0.91g / cm 3 , thus ensuring that the cable weight is not too large.
[0027] The outer sheath is made of PU material. PU material is polyether polyurethane, which has the functions of hydrolysis resistance, wear resistance, seawater corrosion resistance, and resistance to high seabed water pressure penetration, ensuring that when the towline is towed on the sea surface and rubs against reefs, the outer sheath is not easily damaged, providing protection for the overall operation of the towline.
[0028] like Figure 2 As shown, the existing floating minesweeping cable includes a rubber strip 11, a float 12, a water blocking tape 13, a self-adhesive sealing layer 14, an inner conductor 15, a TPV insulating layer 16, an insulated outer conductor 17, a wrapping tape 18, and a PU sheath 19 which are arranged concentrically from the inside to the outside. The specific structure is as follows:
[0029] 1. The rubber strip is a PE rubber strip, which acts as a series of floating bodies, with a specific gravity of 0.91g / cm 3 ;
[0030] 2. The float is a polyurethane imitation wood structure, which provides buoyancy for the cable and ensures that the cable density is 1.026g / cm 3 , so that the cable is in a zero buoyancy state and can float on the sea surface;
[0031] 3. The water-blocking tape is a wrapped water-blocking tape to ensure that the cable has a certain water-blocking performance;
[0032] 4. The self-adhesive sealing layer is extruded TPV (thermoplastic vulcanized rubber), and the density of TPV is 0.91g / cm 3 , making the float more stable and also providing a certain buoyancy for the cable;
[0033] 5. The inner conductor is a plurality of copper conductors twisted outside the self-adhesive sealing layer, which provides a large current for the cable and also plays a certain pulling role;
[0034] 6. The TPV insulation layer is extruded TPV (thermoplastic vulcanized rubber), which plays an insulating role and also provides a certain buoyancy for the cable;
[0035] 7. The insulated outer conductor is a plurality of insulated conductors twisted outside the TPV insulation layer, which provides a large current for the cable and can also play a certain pulling role;
[0036] 8. Tape, used to bundle insulated conductors;
[0037] 9. PU sheath provides protection for the overall operation of the floating minesweeping cable.
[0038] The connection between the towline and the floating minesweeping cable is as follows:
[0039] 1. Preparation
[0040] 1. Equipment and tools
[0041] Electric crimping pliers, wire stripping pliers, vise pliers, C70 manual crimping pliers, hair dryer, gas tank, angle grinder, small angle grinder, hand saw, paper cutter, screwdriver, Allen wrench, tape measure, caliper;
[0042] 2. Materials
[0043] Epoxy resin 21, 200g; brass wire clamp 22, 1 pair of Φ70; small copper connecting tube 23, 21 Φ10*50mm; tinned copper wire 24, 20 meters Φ1.38; large copper connecting tube 25, 1 Φ64; insulating self-adhesive tape 26, 25 rolls; insulating waterproof tape 27, 3 rolls; thermoplastic tube 28, 4 Φ90Φ120; cone tube 29, 1 epoxy glass tube; glass cloth;
[0044] 2. Operation steps
[0045] 1. Preparation
[0046] Confirm whether the insulation resistance and conductor resistance of the towing cable and floating minesweeping cable are qualified;
[0047] 2. Cable handling
[0048] Strip off a certain length of the outer sheath 5 from the end of the tow cable, measure a suitable length of the second core conductor 4 from the root of the tow cable, cut off the excess second core conductor 4, strip off a certain length of the insulating sleeve from the end of the second core conductor 4, strip off a certain length of the insulating layer 3 and the tape layer 2 from the end of the tow cable, and tie the first core conductor 1 tightly with tinned copper wire 24 to prevent it from falling apart.
[0049] 3. Floating minesweeping cable processing
[0050] Strip off a certain length of TPU sheath 19 and tape 18 from the end of the cable, strip off a certain length of insulation from the end of the insulated outer conductor 17, bend the insulated outer conductor 17 backward and fix it on the floating minesweeping cable with adhesive tape; measure the inner conductor 15 of appropriate length from the root of the floating minesweeping cable, cut off the excess inner conductor 15 and TPV insulation layer 16, keep the inner conductor of appropriate length and stretch it from the inside to the outside, and remove another float 12 inward;
[0051] 4. Connect
[0052] Put four thermoplastic tubes 28 on the ends of the towline in advance, put the large copper connecting tube 25 and the cone tube 29 on the towline at the same time, note that the cone surface of the cone tube faces inward, and insert the cone tube and the first core conductor 1 of the towline into the position where the floating minesweeping cable is removed from the float;
[0053] The inner conductor 15 of the floating minesweeping cable is evenly distributed on the first core conductor 1 of the tow cable, and the first core conductor 1 of the tow cable exposed from the inner conductor is tied tightly with 2 layers of tinned copper wire 24;
[0054] Insert the large copper connecting tube 25 to a position 3-5 mm away from the cone tube, and fill and crimp with pins. After crimping, remove the sharp corners and burrs on the large copper connecting tube;
[0055] Wrap the inner conductor with an insulating waterproof tape 27, and then wrap it with an insulating self-adhesive tape 26 to a diameter of 72 mm.
[0056] Wrap the inner conductor with an insulating self-adhesive tape 26 to a diameter of 72 mm, then wrap it with an insulating waterproof tape 27 for one layer, shrink the heat shrink tube 28, wrap the two ends of the heat shrink tube with insulating waterproof tape 27 for 50 mm, and add the brass wire clamp 22 to the heat shrink tube 28 100 mm away from the outer sheath of the tow cable;
[0057] Use 21 small copper connecting tubes 23 to crimp the second core conductor 4 of the tow cable and the insulated outer conductor 17 of the floating minesweeping cable in a ratio of 3:2 (put on the heat shrink tube before crimping), shrink the tube, and wrap the crimped part and the brass wire clamp 22 with glass cloth by brushing epoxy resin 21, with an outer diameter not exceeding 88mm, and complete curing for 24 hours;
[0058] Wrap around the insulating waterproof tape 26 , the insulating self-adhesive tape 27 , and the shrink tube and heat shrink tube 28 .
[0059] The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
Claims
1. A towline connected to a floating minesweeping cable, Features: The tow cable comprises, from the inside out, a first core conductor (1), a tape layer (2), an insulating layer (3), a second core conductor (4), and an outer sheath (5).
2. A towline connected to a floating minesweeping cable according to claim 1, Features: The first core conductor is formed by twisting a plurality of copper wires.
3. A towline connected to a floating minesweeping cable according to claim 2, Features: The wrapping layer is formed by wrapping a water-blocking tape.
4. A towline connected to a floating minesweeping cable according to claim 3, Features: The insulating layer is made of TPV material; the thickness of the insulating layer is greater than or equal to 3.0 mm.
5. A towline connected to a floating minesweeping cable according to claim 4, Features: The second core conductor is a plurality of insulated wires twisted outside the first insulating layer; the conductors of the insulated wires are copper wires, and the insulating sleeves of the insulated wires are made of TPV material.
6. A towline connected to a floating minesweeping cable according to claim 5, Features: The outer sheath is made of PU material.