Crosslinked polyethylene insulated cable for ships

Abstract

The utility model belongs to the technical field of insulated cables, and particularly relates to a cross-linked polyethylene insulated cable for ships, which comprises a plurality of cross-linked polyethylene cables, a support core is arranged in the center of the cable, a plurality of filling strips are wrapped outside the cross-linked polyethylene cables, an armor layer is arranged outside the filling strips, and the armor layer is wrapped outside the cross-linked polyethylene cables. A coating layer is arranged outside the armor layer, and the support core and the filling strip are matched to coat the crosslinked polyethylene cable; firstly, the arranged filling strips are made of composite materials, the composite materials are supported by rubber, tensile materials are added into the rubber, the tensile force and toughness are improved, then the cross-linked polyethylene cables are in clearance fit with the supporting cores and the filling strips, the flexibility and elasticity of the cable are improved, and meanwhile the tensile property is guaranteed; and secondly, the cross-linked polyethylene cable, the supporting core and the filling strips are connected in the axial direction and the radial direction, so that the structural compactness and stability of the cable are ensured, and the stress uniformity after pulling is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulated cables, in particular to a cross-linked polyethylene insulated cable for ships. Background Art

[0002] Cross-linked polyethylene insulated cable for ship is a kind of power transmission equipment specially used for ship applications. It is suitable for power, lighting and general control devices of various warships, river and sea vessels, offshore oil platforms and other water buildings. It has excellent heat resistance, insulation, mechanical properties and chemical resistance, and has the characteristics of high flame retardancy, high tear resistance, high weather resistance and low toxicity.

[0003] Most ships use cross-linked polyethylene insulated cables with large diameters and multiple thicker wires inside, which results in poor flexibility of the cables. In addition, the filling ropes used inside general insulated cables are compact solid structures. Although they have reliable tensile strength and structural strength, they are not conducive to bending of cables during wiring and have poor toughness.

[0004] In order to solve the above problems, the present application proposes a cross-linked polyethylene insulated cable for ships. Utility Model Content

[0005] The utility model aims to provide a cross-linked polyethylene insulated cable for ships, which solves the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a cross-linked polyethylene insulated cable for ships, comprising a cross-linked polyethylene cable, wherein there are a plurality of cross-linked polyethylene cables, a supporting core is arranged at the center of the cable, a plurality of filling strips are wrapped around the outside of the cross-linked polyethylene cable, an armor layer is arranged outside the filling strip, a coating layer is arranged outside the armor layer, the supporting core and the filling strip are wrapped around the outside of the cross-linked polyethylene cable in cooperation, and gaps are formed between the cross-linked polyethylene cable, the supporting core and the filling strip to facilitate the bending of the cross-linked polyethylene cable, the cross-linked polyethylene cable and the supporting core are both tensile-resistant and tough rubber components; a No. 1 groove is arranged outside the supporting core, and a positioning block is fixed on the supporting core; a No. 2 groove is arranged inside the supporting core, and a positioning groove is arranged on the filling strip.

[0008] Furthermore, a guide sleeve is provided outside the molding of the support core and the cross-linked polyethylene cable, and a guide wheel is provided outside the molding of the cross-linked polyethylene cable, the support core and the filling strip, and the guide wheel is installed through a bracket.

[0009] Furthermore, the cross-linked polyethylene cable and the support core are combined through a guide sleeve, and after the cross-linked polyethylene cable and the support core are combined, they are combined with a filling strip through a guide wheel.

[0010] Furthermore, the No. 1 groove and the No. 2 groove are both matched with the cross-linked polyethylene cable, and the radius is larger than the cross-linked polyethylene cable.

[0011] Furthermore, support sheets are fixedly provided in the No. 1 slot and the No. 2 slot, and films are provided on the support sheets. The support sheets and films are in multiple groups distributed at equal distances.

[0012] Furthermore, the support sheet is attached to the outside of the cross-linked polyethylene cable, and the support core and the filling strip are bonded to the outside of the cross-linked polyethylene cable by means of a film.

[0013] Furthermore, the supporting core is provided in a plurality of strips, the plurality of filling strips are in contact with each other, the filling strips are also in contact with the cross-linked polyethylene cable, and the positioning block and the positioning groove are in cooperation with each other.

[0014] The utility model has the following beneficial effects:

[0015] The utility model replaces the traditional filling rope with a filling strip, which is formed by a composite material and has the advantages of being softer, lighter and more elastic than a solid filling rope. At the same time, an internal activity space is left at the connection between the cross-linked polyethylene cable, the supporting core and the filling strip when bending, thereby ensuring the tensile resistance of the cross-linked polyethylene cable and improving its toughness, and facilitating the cable arrangement work.

[0016] The utility model can effectively enhance the connection reliability among the cross-linked polyethylene cable, the supporting core and the filling strip through simple positioning blocks, positioning grooves and films. Compared with the extrusion shaping of the filling rope, the shaping is more convenient. At the same time, the positions are evenly distributed, thereby improving the cable quality.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 for Figure 1A schematic diagram of the structure from a side view;

[0021] Figure 3 It is a structural schematic diagram of the cable cross section in the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the connection between the cable, the support core and the filling strip in the utility model;

[0023] Figure 5 for Figure 4 The structural diagram of the enlarged part A in the middle;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. cross-linked polyethylene cable; 2. supporting core; 21. slot No. 1; 22. positioning block; 3. filling strip; 31. slot No. 2; 32. positioning slot; 4. armor layer; 5. covering layer; 6. guide sleeve; 7. guide wheel; 8. bracket; 9. supporting sheet; 10. film. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-5As shown, the utility model is a cross-linked polyethylene insulated cable for ships, comprising a cross-linked polyethylene cable 1, wherein there are multiple cross-linked polyethylene cables 1, a supporting core 2 is arranged at the center of the cable, multiple filling strips 3 are wrapped around the outside of the cross-linked polyethylene cable 1, the supporting core 2 and the filling strips 3 are composite materials, the composite materials are supported by rubber, and tensile material is added inside the rubber to improve the tensile force and toughness, an armor layer 4 is arranged outside the filling strips 3, and a coating layer 5 is arranged outside the armor layer 4, the supporting core 2 and the filling strips 3 are cooperated to wrap around the outside of the cross-linked polyethylene cable 1, and gaps for bending the cross-linked polyethylene cable 1 are formed between the cross-linked polyethylene cable 1 and the supporting core 2 and the filling strips 3, and the cross-linked polyethylene cable 1 and the supporting core 2 and the filling strips 3 are both tensile-resistant and tough rubber components; a No. 1 groove 21 is provided on the outside of the supporting core 2, and a positioning block 22 is fixed on the supporting core 2; a No. 2 groove 31 is provided on the inside of the supporting core 2, and a positioning groove 32 is provided on the filling strip 3.

[0029] Among them, a guide sleeve 6 is arranged outside the molded part of the support core 2 and the cross-linked polyethylene cable 1, and a guide wheel 7 is arranged outside the molded part of the cross-linked polyethylene cable 1, the support core 2 and the filling strip 3. The guide wheel 7 is installed through a bracket 8. In this embodiment, the guide wheel 7 ensures the contact area with the outside of the filling strip 3, ensures the fit degree of the film 10, and ensures the stability of the cable structure after molding.

[0030] Among them, the cross-linked polyethylene cable 1 and the supporting core 2 are combined through a guide sleeve 6. After the cross-linked polyethylene cable 1 and the supporting core 2 are combined, they are combined with the filling strip 3 through a guide wheel 7. In this embodiment, the guide sleeve 6 can be replaced by other equipment to ensure that multiple supporting cores 2 and the cross-linked polyethylene cable 1 are stably connected.

[0031] Among them, the first groove 21 and the second groove 31 are both matched with the cross-linked polyethylene cable 1, and the radius is larger than the cross-linked polyethylene cable 1. In this embodiment, a gap is formed by the radius difference to provide bending space for the cross-linked polyethylene cable 1 and improve the cable flexibility.

[0032] Among them, support sheets 9 are fixedly provided in the No. 1 groove 21 and the No. 2 groove 31, and films 10 are provided on the support sheets 9. The support sheets 9 and films 10 are multiple groups distributed at equal intervals. The support sheets 9 are fitted to the outside of the cross-linked polyethylene cable 1, and the support core 2 and the filling strip 3 are bonded to the outside of the cross-linked polyethylene cable 1 through the film 10. In this embodiment, the support of the support sheet 9 forms an activity space for the cross-linked polyethylene cable 1, and at the same time can ensure the stability of the cross-linked polyethylene cable 1 inside the cable.

[0033] Among them, the support core 2 is arranged in multiple strips, and the plurality of filling strips 3 are in contact with each other. The filling strip 3 is also in contact with the cross-linked polyethylene cable 1. The positioning block 22 and the positioning groove 32 are matched and connected. In this embodiment, the axial connection reliability of the support core 2 and the filling strip 3 is enhanced through the cooperation of the positioning block 22 and the positioning groove 32, and the structure is simple.

[0034] It can be understood that the filling strip 3 set first is a composite material, the composite material is supported by rubber, and tensile material is added inside the rubber to improve the tension and toughness, and then it is matched with the gap between the cross-linked polyethylene cable 1 and the support core 2 and the filling strip 3 to improve the flexibility and elasticity of the cable while ensuring the tensile resistance. Secondly, the cross-linked polyethylene cable 1, the support core 2, and the filling strip 3 are connected axially and radially to ensure the compactness and stability of the cable structure and improve the uniformity of force after pulling.

[0035] A specific application of this embodiment is: the support core 2 is ensured to move stably in the center of the guide sleeve 6 by a positioning device or a support. At this time, multiple cross-linked polyethylene cables 1 are assembled on the outside of the support core 2 through the guide sleeve 6. The multiple cross-linked polyethylene cables 1 enter the No. 1 groove 21 and are adhered by the film 10 in the No. 1 groove 21. There are intermittent gaps between the support core 2 and the cross-linked polyethylene cable 1. Then the cross-linked polyethylene cable 1 and the support core 2 enter the inner side of the guide wheel 7. The filling strip 3 is added and wrapped around the outside of the cross-linked polyethylene cable 1 under the guidance of the guide wheel 7. The film 10 on the filling strip 3 is bonded to the cross-linked polyethylene cable 1, and a movable gap is formed between the cross-linked polyethylene cable 1 and the filling strip 3. At this time, the positioning groove 32 on the filling strip 3 is docked with the positioning block 22 on the support core 2 to enhance axial stability. Then the armor layer 4 and the sheath 5 are formed to process the cable into shape. The armor layer 4 and the sheath 5 limit radial movement and form protection on the outside.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cross-linked polyethylene insulated cable for use on ships, comprising a cross-linked polyethylene cable (1), wherein the cross-linked polyethylene cable (1) is a plurality of cables, and wherein: A support core (2) is arranged at the center of the cable, a plurality of filling strips (3) are wrapped around the outside of the cross-linked polyethylene cable (1), an armor layer (4) is arranged outside the filling strips (3), and a coating layer (5) is arranged outside the armor layer (4), the support core (2) and the filling strips (3) are wrapped around the outside of the cross-linked polyethylene cable (1), and gaps are formed between the cross-linked polyethylene cable (1), the support core (2) and the filling strips (3) for bending the cross-linked polyethylene cable (1), and the cross-linked polyethylene cable (1) and the support core (2) are both rubber components that are tensile-resistant and have toughness; A first groove (21) is formed on the outside of the support core (2), and a positioning block (22) is also fixed on the support core (2); A second groove (31) is provided on the inner side of the support core (2), and a positioning groove (32) is provided on the filling strip (3).

2. A cross-linked polyethylene insulated cable for ships according to claim 1, characterized in that: A guide sleeve (6) is provided on the outside of the support core (2) and the cross-linked polyethylene cable (1), and a guide wheel (7) is provided on the outside of the cross-linked polyethylene cable (1), the support core (2) and the filling strip (3), and the guide wheel (7) is installed via a bracket (8).

3. A cross-linked polyethylene insulated cable for ships according to claim 2, characterized in that: The cross-linked polyethylene cable (1) and the support core (2) are combined via a guide sleeve (6); after the cross-linked polyethylene cable (1) and the support core (2) are combined, they are combined with the filling strip (3) via a guide wheel (7).

4. The cross-linked polyethylene insulated cable for ships according to claim 1, characterized in that: The first groove (21) and the second groove (31) are both matched with the cross-linked polyethylene cable (1), and have a radius greater than the cross-linked polyethylene cable (1).

5. A cross-linked polyethylene insulated cable for ships according to claim 4, characterized in that: A support sheet (9) is fixedly disposed in the first slot (21) and the second slot (31), and a film (10) is disposed on the support sheet (9). The support sheet (9) and the film (10) are both arranged in multiple groups at equal intervals.

6. A cross-linked polyethylene insulated cable for ships according to claim 5, characterized in that: The support sheet (9) is bonded to the outside of the cross-linked polyethylene cable (1), and the support core (2) and the filling strip (3) are bonded to the outside of the cross-linked polyethylene cable (1) via a film (10).

7. The cross-linked polyethylene insulated cable for ships according to claim 1, characterized in that: The supporting core (2) is provided in a plurality of strips, the plurality of filling strips (3) are in contact with each other, the filling strips (3) are also in contact with the cross-linked polyethylene cable (1), and the positioning block (22) and the positioning groove (32) are in cooperation with each other.

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