Low-smoke halogen-free mining mobile rubber jacketed flexible cable
By designing tensile components, internal and external shielding layers and phosphor layers on coal mine mobile cables, the problem of cable inspection and maintenance is solved, and fast and convenient damage detection and cable stability are achieved.
Patent Information
- Application Number
- CN202420709615.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-08
AI Technical Summary
During the use of existing mobile low-smoke halogen-free rubber sleeve soft cables for coal mines, the cable is slender and requires manual inspection and maintenance, which makes it time-consuming and labor-intensive to check the damaged port along the cable surface and low efficiency.
A low-smoke, halogen-free type mobile rubber sleeve soft cable is designed, which adopts the surface of the rubber layer with tensile components and cable core components, and is equipped with an inner shielding layer, corrosion-resistant layer, flame-retardant layer and resistant layer on the inner and outer layers. The wear layer, the wear-resistant layer is equipped with a calcium halogen phosphate phosphor layer, which determines the damage position through fluorescent pulverization, which facilitates quick inspection.
Through the convenient judgment of fluorescent pulverization, the range of inspection is shortened, the inspection efficiency is improved, and the stability and durability of the cable are enhanced.
Smart Images
Figure CN222145821U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cable, in particular to a low-smoke and halogen-free mobile rubber-sheathed soft cable for mining, belonging to the technical field of cables. Background Art
[0002] Mobile low-smoke halogen-free rubber sheathed flexible cables for coal mines are used for power connection of various underground mobile coal mining equipment. During use, with the frequent movement of coal mining machinery and equipment, the cables will also move, bend and stretch. The underground tunnels are very narrow, and the cables are easily scratched by the well wall or hit by heavy objects.
[0003] Among them, the "reinforced mobile shielded low-smoke halogen-free rubber sheathed soft cable for coal mines" disclosed in the application number "CN201821836198.7" "includes a cable core, an inner sheath is extruded on the outside of the cable core, a reinforcement layer is woven on the outside of the inner sheath, and an outer sheath is extruded on the outside of the reinforcement layer; the cable core has a cabling structure of 0+4, and an aramid rope is arranged in the center of the four insulating cores, and a rubber filling layer is extruded on the outside of the aramid rope; the insulating core includes a conductor, an insulating layer is arranged on the outside of the conductor, and a semi-conductive tape is wrapped around the outside of the insulating layer. The utility model has a simple structure and a compact design. The aramid rope and the rubber filling layer in the center of the cable core can concentrate the force, thereby providing a certain protection for the conductor of the insulating core. The inner sheath, the reinforcement layer and the outer sheath can improve the tensile strength of the cable and increase the impact strength of the cable." After further searching, it was found that , and its application number is "CN201820036171.3" disclosed in "a mobile shielded low-smoke halogen-free rubber sheathed flexible cable for coal mines", which "comprises a cable core, the cable core comprises four insulating cores, the outer side of the cable core is extruded with a sheath, the outer sides of the insulating cores are respectively wrapped with semi-conductive tapes, the four insulating cores are twisted in parallel, and the filling layer is filled in the gaps between the twisted insulating cores; the insulating core comprises a conductor, and the outer side of the conductor is wrapped with an insulating layer. The utility model has a simple structure, compact design, and is easy to use. The semi-conductive tape is wrapped around the outer side of the insulating core and the sheath is extruded on the outer side of the cable core, so that the cable can meet the flame retardant performance requirements of the mobile shielded flexible cable for coal mines, and the sheath and the semi-conductive tape are made of low-smoke, halogen-free, flame retardant materials, thereby improving the low-smoke, halogen-free, flame retardant and low-toxicity properties of the cable."
[0004] However, the above two methods still have the following defects: before starting the coal mining equipment, the surface of the cable needs to be manually inspected and maintained, and the cable is slender, so it is time-consuming and laborious to check for damage along the surface of the cable. Utility Model Content
[0005] The utility model aims to provide a low-smoke and halogen-free mobile rubber sheathed flexible cable for mining, so as to solve the problem that it is time-consuming and laborious to check for damaged openings along the surface of the existing cable.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-smoke halogen-free mobile rubber-sheathed flexible cable for mining, comprising a rubber layer, a first through hole and four second through holes are respectively provided on the surface of the rubber layer, a tensile-resistant component is provided inside the first through hole, and a cable core component is provided on the inner walls of the four second through holes, four rotation-deactivation grooves are provided on the surface of the rubber layer, an inner shielding layer is provided on the surface of the rubber layer, a corrosion-resistant layer is provided on the surface of the inner shielding layer, a flame-retardant layer is provided on the surface of the corrosion-resistant layer, a wear-resistant layer is provided on the surface of the flame-retardant layer, two storage cavities are provided inside the wear-resistant layer, and calcium halophosphate phosphor layers are provided inside the two storage cavities.
[0007] As a preferred technical solution of the utility model, the inner shielding layer includes four first concave arc segments and four first convex arc segments, the inner surfaces of the four first concave arc segments are respectively connected to the inner walls of the four rotation inhibition grooves, the inner surfaces of the four first convex arc segments are all connected to the surface of the rubber layer, the contact parts of the four first convex arc segments and the four first concave arc segments are all connected, and the four first convex arc segments and the four first concave arc segments are arranged as an integrated structure.
[0008] As a preferred technical solution of the utility model, the corrosion-resistant layer includes four second concave arc segments and four second convex arc segments, the inner surfaces of the four second concave arc segments are respectively connected to the outer surfaces of the four first concave arc segments, the inner surfaces of the four second convex arc segments are respectively connected to the inner surfaces of the four first convex arc segments, the contact parts of the four second convex arc segments and the four second concave arc segments are all connected, and the four second convex arc segments and the four second concave arc segments are arranged as an integrated structure.
[0009] As a preferred technical solution of the present utility model, the flame retardant layer includes a flame retardant ring, which is arranged on the outer surface of four second convex arc segments, and the inner wall of the flame retardant ring is provided with four first baffles, and the surfaces of the four first baffles are respectively connected to the outer surfaces of four second concave arc segments, and the surface of the flame retardant ring is provided with twelve second baffles.
[0010] As a preferred technical solution of the utility model, the twelve second baffles, the four first baffles and the flame retardant ring are all made of rock wool material, and the twelve second baffles, the four first baffles and the flame retardant ring are arranged as an integrated structure.
[0011] As a preferred technical solution of the utility model, twelve auxiliary grooves are provided on the inner surface of the wear-resistant layer, the twelve auxiliary grooves are evenly distributed in a ring shape, and the inner walls of the twelve auxiliary grooves are respectively connected to the surfaces of the twelve second baffles.
[0012] As a preferred technical solution of the utility model, the tensile component includes a tape layer, which is arranged on the inner wall of the first through hole, the tape layer is made of non-woven fabric material, and the inner wall of the tape layer is provided with aramid rope.
[0013] As a preferred technical solution of the utility model, the four cable core assemblies all include aramid yarn lining layers, the four aramid yarn lining layers are respectively arranged on the inner walls of the four second through holes, the inner walls of the four aramid yarn lining layers are all provided with insulating layers, the four insulating layers and rubber layers are all made of halogen-free, low-smoke, flame-retardant EVA rubber material, and the inner walls of the four insulating layers are all provided with conductors.
[0014] Compared with the related art, the low-smoke halogen-free mining mobile rubber sheathed flexible cable provided by the utility model has the following beneficial effects:
[0015] 1. The part of the calcium halophosphate phosphor layer that is hit by the well wall or heavy objects will be crushed into calcium halophosphate phosphor and flow out through the damaged opening. Workers can scan in a dark environment and judge whether the cable is damaged by the presence of fluorescence, which is very convenient. The fluorescent position can shorten the range of naked eye inspection, improve inspection efficiency, and make it more convenient.
[0016] 2. The inner shielding layer is limited by four anti-rotation grooves through the first concave arc segment, which enhances the stability of the inner shielding layer; the corrosion-resistant layer is limited by four first concave arc segments through the second concave arc segment, which enhances the stability of the corrosion-resistant layer; the flame-retardant ring is limited by the second concave arc segment through the first baffle, which enhances the stability of the flame-retardant ring; the wear-resistant layer is limited by the second baffle through the auxiliary groove, which enhances the stability of the wear-resistant layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;
[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at B;
[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;
[0021] Figure 5 This is a schematic diagram of the explosion structure of the wear-resistant layer of the utility model.
[0022] In the figure: 1. rubber layer; 2. tensile component; 21. tape layer; 22. aramid rope; 3. first through hole; 4. second through hole; 5. cable core component; 51. aramid yarn lining layer; 52. insulating layer; 53. conductor; 6. anti-rotation groove; 7. inner shielding layer; 71. first concave arc segment; 72. first convex arc segment; 8. corrosion-resistant layer; 81. second concave arc segment; 82. second convex arc segment; 9. flame-retardant layer; 91. flame-retardant ring; 92. first baffle; 93. second baffle; 10. wear-resistant layer; 11. storage cavity; 12. calcium halophosphate phosphor layer; 13. auxiliary groove. DETAILED DESCRIPTION
[0023] 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.
[0024] See also Figure 1-5 The utility model provides a low-smoke halogen-free mobile rubber sheathed flexible cable for mining, comprising a rubber layer 1, a first through hole 3 and four second through holes 4 are respectively provided on the surface of the rubber layer 1, a tensile assembly 2 is provided inside the first through hole 3, and a cable core assembly 5 is provided on the inner walls of the four second through holes 4, four rotation suppression grooves 6 are provided on the surface of the rubber layer 1, an inner shielding layer 7 is fixedly provided on the surface of the rubber layer 1, a corrosion-resistant layer 8 is fixedly provided on the surface of the inner shielding layer 7, a flame-retardant layer 9 is fixedly provided on the surface of the corrosion-resistant layer 8, a wear-resistant layer 10 is fixedly provided on the surface of the flame-retardant layer 9, two storage cavities 11 are provided inside the wear-resistant layer 10, and calcium halophosphate phosphor layers 12 are fixedly provided inside the two storage cavities 11.
[0025] The inner shielding layer 7 includes four first concave arc segments 71 and four first convex arc segments 72. The inner surfaces of the four first concave arc segments 71 are respectively fixedly connected to the inner walls of the four anti-rotation grooves 6, and the inner surfaces of the four first convex arc segments 72 are all fixedly connected to the surface of the rubber layer 1. The contact parts of the four first convex arc segments 72 and the four first concave arc segments 71 are all fixedly connected. The four first convex arc segments 72 and the four first concave arc segments 71 are set as an integrated structure. It should be supplemented that the fixing method between the layers is usually to use adhesive bonding, which will not be repeated below. The inner shielding layer 7 will be limited by the four anti-rotation grooves 6 through the first concave arc segments 71, which helps the adhesive layer to overcome the external force that rotates the inner shielding layer 7 along the surface of the rubber layer 1, thereby enhancing the stability of the inner shielding layer 7.
[0026] The corrosion-resistant layer 8 includes four second concave arc segments 81 and four second convex arc segments 82. The inner surfaces of the four second concave arc segments 81 are respectively connected to the outer surfaces of the four first concave arc segments 71, and the inner surfaces of the four second convex arc segments 82 are respectively fixedly connected to the inner surfaces of the four first convex arc segments 72. The contact parts of the four second convex arc segments 82 and the four second concave arc segments 81 are all fixedly connected. The four second convex arc segments 82 and the four second concave arc segments 81 are set as an integrated structure. The corrosion-resistant layer 8 is limited by the four first concave arc segments 71 through the second concave arc segments 81, which helps the adhesive layer to overcome the external force that rotates the corrosion-resistant layer 8 along the surface of the inner shielding layer 7, thereby enhancing the stability of the corrosion-resistant layer 8.
[0027] The flame retardant layer 9 includes a flame retardant ring 91, which is fixedly arranged on the outer surfaces of the four second convex arc segments 82. Four first baffles 92 are fixedly arranged on the inner wall of the flame retardant ring 91. The surfaces of the four first baffles 92 are respectively fixedly connected to the outer surfaces of the four second concave arc segments 81. Twelve second baffles 93 are fixedly arranged on the surface of the flame retardant ring 91. The flame retardant ring 91 will be limited by the second concave arc segments 81 through the first baffles 92, thereby enhancing the stability of the flame retardant ring 91.
[0028] The twelve second baffles 93, the four first baffles 92 and the flame retardant ring 91 are all made of rock wool material. The twelve second baffles 93, the four first baffles 92 and the flame retardant ring 91 are arranged as an integrated structure, and the twelve second baffles 93, the four first baffles 92 and the flame retardant ring 91 improve the flame retardant performance of the cable.
[0029] The inner surface of the wear-resistant layer 10 is provided with twelve auxiliary grooves 13, which are evenly distributed in a ring shape. The inner walls of the twelve auxiliary grooves 13 are respectively fixedly connected to the surfaces of the twelve second baffles 93. The wear-resistant layer 10 is limited by the second baffles 93 through the auxiliary grooves 13, thereby enhancing the stability of the wear-resistant layer 10.
[0030] The tensile component 2 includes a tape layer 21, which is fixedly arranged on the inner wall of the first through hole 3. The tape layer 21 is made of a non-woven fabric material. An aramid rope 22 is fixedly arranged on the inner wall of the tape layer 21. The aramid rope 22 has the advantages of high strength, high temperature resistance, light weight and insulation, which enhances the tensile performance of the cable. The tape layer 21 prevents the aramid rope 22 from directly contacting and rubbing with the rough rubber layer 1, thereby extending the service life of the aramid rope 22.
[0031] The four cable core assemblies 5 all include an aramid yarn lining layer 51, and the four aramid yarn lining layers 51 are respectively fixed on the inner walls of the four second through holes 4, and the inner walls of the four aramid yarn lining layers 51 are fixed with an insulating layer 52. The four insulating layers 52 and the rubber layer 1 are all made of halogen-free, low-smoke, flame-retardant EVA rubber material, and the inner walls of the four insulating layers 52 are fixed with a conductor 53. The aramid yarn lining layer 51 can easily slide into the rubber layer 1 and the conductor 53 along the inside of the second through hole 4 of the cast rubber layer 1, which is convenient for assembly.
[0032] During use, when the wear-resistant layer 10 on the outside of the cable is scratched by the well wall or hit by a heavy object, a damaged opening is generated on the surface of the wear-resistant layer 10, causing the interior of the storage cavity 11 to be connected to the outside world, and the calcium halophosphate phosphor layer 12 inside the storage cavity 11 is exposed. The portion of the calcium halophosphate phosphor layer 12 that is hit by the well wall or heavy objects will be crushed into calcium halophosphate phosphor and flow out through the damaged opening and fall to the ground. Before inspection, the workers temporarily turn off the light source in the lane where the cable is located, and then scan the dark environment to determine whether the cable is damaged by whether there is fluorescence. This is very convenient, and if fluorescence appears, the range of naked eye inspection can be shortened by the position of the fluorescence, thereby improving inspection efficiency and making it more convenient.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-smoke, halogen-free, mobile rubber-sheathed flexible cable for mining, comprising a rubber layer (1), characterized in that: The surface of the rubber layer (1) is respectively provided with a first through hole (3) and four second through holes (4); a tensile component (2) is provided inside the first through hole (3); the inner walls of the four second through holes (4) are each provided with a cable core component (5); the surface of the rubber layer (1) is provided with four rotation-depressing grooves (6); the surface of the rubber layer (1) is provided with an inner shielding layer (7); the surface of the inner shielding layer (7) is provided with a corrosion-resistant layer (8); the surface of the corrosion-resistant layer (8) is provided with a flame-retardant layer (9); the surface of the flame-retardant layer (9) is provided with a wear-resistant layer (10); two storage cavities (11) are provided inside the wear-resistant layer (10); and the two storage cavities (11) are each provided with a calcium halophosphate phosphor layer (12).
2. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 1 is characterized in that: The inner shielding layer (7) comprises four first concave arc segments (71) and four first convex arc segments (72); the inner surfaces of the four first concave arc segments (71) are respectively connected to the inner walls of the four rotation-depressing grooves (6); the inner surfaces of the four first convex arc segments (72) are all connected to the surface of the rubber layer (1); the contact parts of the four first convex arc segments (72) and the four first concave arc segments (71) are all connected; the four first convex arc segments (72) and the four first concave arc segments (71) are arranged as an integrated structure.
3. The low-smoke, halogen-free, mobile rubber-sheathed flexible cable for mining according to claim 2 is characterized in that: The corrosion-resistant layer (8) comprises four second concave arc segments (81) and four second convex arc segments (82), the inner surfaces of the four second concave arc segments (81) are respectively connected to the outer surfaces of the four first concave arc segments (71), the inner surfaces of the four second convex arc segments (82) are respectively connected to the inner surfaces of the four first convex arc segments (72), the contact parts of the four second convex arc segments (82) and the four second concave arc segments (81) are all connected, and the four second convex arc segments (82) and the four second concave arc segments (81) are arranged as an integrated structure.
4. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 3 is characterized by: The flame retardant layer (9) comprises a flame retardant ring (91), wherein the flame retardant ring (91) is arranged on the outer surface of four second convex arc segments (82), the inner wall of the flame retardant ring (91) is provided with four first baffles (92), the surfaces of the four first baffles (92) are respectively connected to the outer surfaces of four second concave arc segments (81), and the surface of the flame retardant ring (91) is provided with twelve second baffles (93).
5. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 4 is characterized in that: The twelve second baffles (93), the four first baffles (92) and the flame retardant ring (91) are all made of rock wool material, and the twelve second baffles (93), the four first baffles (92) and the flame retardant ring (91) are arranged as an integrated structure.
6. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 4, characterized in that: The inner surface of the wear-resistant layer (10) is provided with twelve auxiliary grooves (13), the twelve auxiliary grooves (13) are evenly distributed in a ring shape, and the inner walls of the twelve auxiliary grooves (13) are respectively connected to the surfaces of the twelve second blocking bars (93).
7. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 1 is characterized by: The tensile component (2) comprises a tape layer (21), the tape layer (21) is arranged on the inner wall of the first through hole (3), the tape layer (21) is made of a non-woven fabric material, and an aramid rope (22) is arranged on the inner wall of the tape layer (21).
8. The low-smoke halogen-free mobile rubber-sheathed flexible cable for mining according to claim 1, characterized in that: The four cable core assemblies (5) each comprise an aramid yarn inner lining layer (51), the four aramid yarn inner lining layers (51) being respectively arranged on the inner walls of the four second through holes (4), the inner walls of the four aramid yarn inner lining layers (51) each being provided with an insulating layer (52), the four insulating layers (52) and the rubber layer (1) each being made of a halogen-free, low-smoke, flame-retardant EVA rubber material, and the inner walls of the four insulating layers (52) each being provided with a conductor (53).