Mining cable
Through multi-layer structural design and the application of low-smoke halogen-free materials, the tensile strength and waterproof and oil-proof performance of mining cables have been improved, solving the impact problem of mining cables when they collide with external objects, and realizing high-performance cable products suitable for power connection of coal mining equipment.
Patent Information
- Application Number
- CN202520285948.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Mining cables lack buffering capabilities when subjected to impacts from external objects, resulting in greater impact force, insufficient compressive strength and tensile strength, which affects service life and structural strength.
The cable adopts a multi-layer structure design, including a conductor core, inner insulation layer, inner wrapping tape, inner lining layer, armor layer, outer wrapping tape, and outer sheath. Combined with a water-blocking filling layer, it uses low-smoke halogen-free environmentally friendly materials. The armor layer is made of galvanized steel wire, and the conductor core has a four-group structure of three thick and one thin cores, which improves the cable's tensile strength and waterproof and oil-proof performance.
The cable has high tensile strength, waterproof and oil-proof properties, and the physical and mechanical properties of the sheath material far exceed national standards. The elongation at break reaches 200%, making it suitable for power connections in coal mining equipment. It also features low smoke, halogen-free, low toxicity, waterproof and oil-proof characteristics.
Smart Images
Figure CN223743316U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cables, in particular to a mine cable. BACKGROUND
[0002] The wire and cable is mainly a wire product for transmitting electric energy, information and realizing electromagnetic energy conversion. The wire and cable is usually composed of several or several groups of wires. The wire and cable is widely applied and is generally used in power, construction, communication and manufacturing industries and is closely related to various departments of the national economy. With more and more wire and cable put into use, people have higher and higher requirements for the wire and cable. When the mine cable is used and collides with external objects, a large impact force is caused, the mine cable does not have a buffering function, and the impact on the cable is serious. The general mine cable has poor compression resistance, resulting in low service life. The tensile resistance and structural strength are insufficient, affecting the use effect. Therefore, the mine cable with buffering function, good compression resistance and excellent tensile resistance is designed. CONTENT OF THE UTILITY MODEL
[0003] In order to solve the above problems, the present application provides a mine cable.
[0004] The mine cable provided by the present application adopts the following technical scheme:
[0005] A mine cable comprises a plurality of conductor cable cores, the surfaces of the conductor cable cores are covered with inner insulation layers, the outer parts of the plurality of conductor cable cores are jointly wrapped with inner wrapping tapes, the outer part of the inner wrapping tape is covered with an inner lining layer, the outer part of the inner lining layer is covered with an armor layer, the outer part of the armor layer is covered with an outer wrapping tape, the outer part of the outer wrapping tape is covered with an outer sheath, and a water-blocking filling layer is arranged in the gap between the inner side of the inner wrapping tape and the plurality of conductor cable cores.
[0006] Further, the conductor cable core is a copper stranded wire, and the conductor cable core is provided as four groups of three thick and one thin.
[0007] Further, the material of the inner insulation layer is cross-linked polyethylene.
[0008] Further, the materials of the inner wrapping tape and the outer wrapping tape are low-smoke halogen-free environmentally friendly flame-retardant water-blocking wrapping tapes.
[0009] Further, the inner lining layer and the outer sheath are both low-smoke halogen-free flame-retardant waterproof flame-retardant plastics.
[0010] Further, the armor layer is a galvanized steel wire.
[0011] Further, the armor layer is circumferentially provided with at least thirty wires at equal intervals, and the diameter of each wire is not less than 1 / 4 of the maximum diameter of the conductor cable core.
[0012] Further, the water-blocking filling layer is polyurethane and / or glass fiber.
[0013] In summary, the present application includes at least one of the following technical effects:
[0014] The present application sets the conductor cable core to four groups of three thick and one thin, so that the cable core structure is compact and stable, and external force is difficult to change the combination layout between them, and also has good electromagnetic compatibility. Through the setting of the armor layer, the tensile strength of the cable is greatly improved. Through the setting of the water-blocking filling layer, the water and oil resistance of the cable is improved. The cable made according to the technical scheme of the present application is mainly used for coal mining, vertical shaft or inclined shaft equipment power connection power supply; the cable product of the present application has the characteristics of low smoke, halogen-free, low toxicity, waterproof, oil-proof, and not easy to crack. The physical and mechanical properties of the sheath material are much higher than the national standard, especially the elongation at break of the sheath is ≥200%, which is much higher than the national standard of ≥125%. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 FIG. 1 is a structural schematic diagram of the cable product of the present application;
[0016] Figure 2 FIG. 1 is a structural schematic diagram of the cable product of the present application;
[0017] FIG. 1 is a structural schematic diagram of the cable product of the present application;
[0018] 1, conductor cable core; 2, inner insulation layer; 3, inner wrapping tape; 4, inner lining layer; 5, armor layer; 6, outer wrapping tape; 7, outer sheath; 8, water-blocking filling layer. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0020] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0022] Embodiment 1:
[0023] The present application will be further described in detail below with reference to the accompanying drawings.
[0024] The embodiment of the present application discloses a mining cable, comprising a plurality of conductor cable cores 1, the surface of the conductor cable core 1 is provided with an inner insulation layer 2, the outside of the plurality of conductor cable cores 1 is collectively wrapped with an inner wrapping tape 3, the outside of the inner wrapping tape 3 is wrapped with an inner lining layer 4, the outside of the inner lining layer 4 is wrapped with an armor layer 5, the outside of the armor layer 5 is wrapped with an outer wrapping tape 6, the outside of the outer wrapping tape 6 is wrapped with an outer sheath 7, and a water-blocking filling layer 8 is arranged in the gap between the inner side of the inner wrapping tape 3 and the plurality of conductor cores.
[0025] Preferably, the conductor cable core 1 is a copper stranded wire, and the conductor cable core 1 is provided as four groups of three thick and one thin.
[0026] Preferably, the material of the inner insulation layer 2 is cross-linked polyethylene.
[0027] Preferably, the materials of the inner wrapping tape 3 and the outer wrapping tape 6 are low-smoke halogen-free environmentally friendly flame-retardant water-blocking wrapping tapes.
[0028] Preferably, the inner lining layer 4 and the outer sheath 7 are both low-smoke halogen-free flame-retardant waterproof flame-retardant plastics.
[0029] Preferably, the armor layer 5 is a galvanized steel wire.
[0030] Preferably, the armor layer 5 is provided with at least thirty wires at equal intervals, and the diameter of a single wire is not less than 1 / 4 of the maximum diameter of the conductor cable core 1.
[0031] Preferably, the water-blocking filling layer 8 is polyurethane.
[0032] Embodiment 2:
[0033] The embodiment of the application discloses a mine cable, which comprises a plurality of conductor cable cores 1, the surfaces of the conductor cable cores 1 are covered by inner insulation layers 2, the outer parts of the plurality of conductor cable cores 1 are collectively wrapped by inner wrapping tapes 3, the outer parts of the inner wrapping tapes 3 are covered by inner lining layers 4, the outer parts of the inner lining layers 4 are covered by armored layers 5, the outer parts of the armored layers 5 are covered by outer wrapping tapes 6, the outer parts of the outer wrapping tapes 6 are covered by outer sheaths 7, and water-blocking filling layers 8 are arranged in the gaps between the inner sides of the inner wrapping tapes 3 and the plurality of conductor cores.
[0034] Preferably, the conductor cable core 1 is a copper stranded wire, and the conductor cable core 1 is arranged as four groups of three thick and one thin.
[0035] Preferably, the material of the inner insulation layer 2 is cross-linked polyethylene.
[0036] Preferably, the materials of the inner wrapping tape 3 and the outer wrapping tape 6 are low-smoke halogen-free environmentally friendly flame-retardant water-blocking wrapping tapes.
[0037] Preferably, the inner lining layer 4 and the outer sheath 7 are both low-smoke halogen-free flame-retardant waterproof flame-retardant plastics.
[0038] Preferably, the armored layer 5 is a galvanized steel wire.
[0039] Preferably, the armored layer 5 is circumferentially arranged at an equal interval and comprises at least 40 wires, and the diameter of each wire is not less than 1 / 5 of the maximum diameter of the conductor cable core 1.
[0040] Preferably, the water-blocking filling layer 8 is a glass fiber.
[0041] Embodiment 3:
[0042] The embodiment of the application discloses a mine cable, which comprises a plurality of conductor cable cores 1, the surfaces of the conductor cable cores 1 are covered by inner insulation layers 2, the outer parts of the plurality of conductor cable cores 1 are collectively wrapped by inner wrapping tapes 3, the outer parts of the inner wrapping tapes 3 are covered by inner lining layers 4, the outer parts of the inner lining layers 4 are covered by armored layers 5, the outer parts of the armored layers 5 are covered by outer wrapping tapes 6, the outer parts of the outer wrapping tapes 6 are covered by outer sheaths 7, and water-blocking filling layers 8 are arranged in the gaps between the inner sides of the inner wrapping tapes 3 and the plurality of conductor cores.
[0043] Preferably, the conductor cable core 1 is a copper stranded wire, and the conductor cable core 1 is arranged as four groups of three thick and one thin.
[0044] Preferably, the material of the inner insulation layer 2 is cross-linked polyethylene.
[0045] Preferably, the materials of the inner wrapping tape 3 and the outer wrapping tape 6 are low-smoke halogen-free environmentally friendly flame-retardant water-blocking wrapping tapes.
[0046] Preferably, the inner lining layer 4 and the outer sheath 7 are both low-smoke halogen-free flame-retardant waterproof flame-retardant plastics.
[0047] Preferably, the armor layer 5 is galvanized steel wire.
[0048] Preferably, the armor layer 5 is arranged at equal intervals with at least 35 wires, and the diameter of each wire is not less than 1 / 4 of the maximum diameter of the conductor cable core 1.
[0049] Preferably, the water-blocking filling layer 8 is a mixture of polyurethane and glass fiber.
[0050] The implementation principle of the mine cable according to the embodiment of the present application is as follows: the conductor cable core 1 is arranged in four groups with three thick and one thin structure, so that the cable core structure is compact and stable, and external force is difficult to change the combination layout among the groups, and the cable also has good electromagnetic compatibility; the armor layer 5 is arranged to greatly improve the tensile strength of the cable; and the water-blocking filling layer 8 is arranged to improve the water and oil resistance of the cable. The cable made according to the technical solution of the present application is mainly used for power connection of equipment in coal mining, vertical shaft or inclined shaft; the finished cable has the characteristics of low smoke, halogen-free, low toxicity, waterproof, oil-proof, and less prone to cracking, and the physical and mechanical properties of the sheath material are much higher than the national standard, especially the elongation at break of the sheath is ≥200%, which is much higher than the national standard of ≥125%.
[0051] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A mining cable comprising a number of conductor cores (1), characterised in that: The surface of the conductor cable core (1) is coated with an inner insulation layer (2), the outer part of the conductor cable core (1) is collectively wrapped with an inner wrapping tape (3), the outer part of the inner wrapping tape (3) is coated with an inner lining layer (4), the outer part of the inner lining layer (4) is coated with an armor layer (5), the outer part of the armor layer (5) is coated with an outer wrapping tape (6), the outer part of the outer wrapping tape (6) is coated with an outer sheath (7), and a water-blocking filling layer (8) is arranged in the gap between the inner side of the inner wrapping tape (3) and the conductor cable core (1).
2. A mining cable according to claim 1, characterised in that: The conductor cable core (1) is a copper stranded wire, and the conductor cable core (1) is provided in three thick and one thin four groups.
3. A mining cable according to claim 1, characterized in that: The material of the inner insulation layer (2) is cross-linked polyethylene.
4. A mining cable according to claim 1, characterised in that: The materials of the inner wrapping tape (3) and the outer wrapping tape (6) are low-smoke halogen-free environmentally friendly flame-retardant water-blocking wrapping tapes.
5. A mining cable according to claim 1, characterised in that: The inner lining layer (4) and the outer sheath (7) are both low-smoke halogen-free flame-retardant waterproof flame-retardant plastics.
6. A mining cable according to claim 1, characterised in that: The armor layer (5) is a galvanized steel wire.
7. A mining cable according to claim 6, characterised in that: The armor layer (5) is circumferentially arranged at an equal interval with at least thirty wires, and the diameter of each wire is not less than 1 / 4 of the maximum diameter of the conductor cable core.
8. A mining cable according to claim 1, characterized in that: The water-blocking filling layer (8) is polyurethane and / or glass fiber.