A reinforced mining cable

Abstract

The present invention discloses a reinforced mining cable, which relates to the technical field of cables. The outer end of a transmission line core is sleeved with a multi-slot insulating sleeve, and a plurality of exchange support bars are equidistantly laid on the outer end of the multi-slot insulating sleeve. A plurality of raised heat exchange bars are equidistantly bonded at the outer end of the multi-slot insulating sleeve corresponding to the positions of the exchange support bars. A hollow elastic bar is clamped between two adjacent raised heat exchange bars. An exchange shielding bar is wrapped around the outer ends of the raised heat exchange bar and the hollow elastic bar. An inner insulating sleeve is fixed to the outer end of the exchange shielding bar, and a plurality of inner buffer support bars are equidistantly bonded to the outer end of the inner insulating sleeve. A plurality of outer buffer support bars are bonded to the outer end of the inner flame retardant sleeve. The reinforced mining cable effectively solves the problem in the prior art that the cable is subjected to continuous small-amplitude bending, resulting in looseness and damage. The cable is effectively suitable for uneven environments, and utilizes internal and external heat exchange and multi-point temperature balance to slow down the aging speed and extend the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to a reinforced mining cable. Background Art

[0002] Mining cable is the abbreviation of cable used in coal mines. All mining cables are flame retardant cables. Mining cables include MC cable, MCP cable, MZ cable, MZP cable, MYQ cable, MY cable, McPTJ cable, MYPTJ cable, MVV cable, MKVV cable, MYJV cable, MKYJV cable, MHYV cable, UGF cable, high voltage mining cable, 10kV rubber sheathed cable, 6kV mining cable, mining mobile cable, mining flame retardant cable, MCPT cable, and mining rubber sheathed cable.

[0003] However, when mining cables are used, the cable laying environment may be uneven, causing the cable to be slightly bent. During long periods of bending, the internal structure of the cable will become loose and damaged, leading to internal ionization. In addition, during operation, the temperature difference at different locations in the mine may cause the cable to expand and contract to varying degrees, accelerating cable aging and affecting its service life. Summary of the Invention

[0004] The present invention provides a reinforced mining cable, which can effectively solve the problem raised in the above background technology that when mining cables are currently used, the cable laying environment may be uneven, causing the cable to be slightly bent. During the long bending process, the internal structure of the cable will become loose and damaged, resulting in internal ionization. In addition, during operation, the temperature difference at different positions in the mine may cause the cable to expand and contract to varying degrees, resulting in accelerated cable aging and affecting its service life.

[0005] To achieve the above object, the present invention provides the following technical solutions: a reinforced mining cable, comprising a transmission core, wherein the outer end of the transmission core is provided with a strong protection temperature equalization component;

[0006] The strong protection and temperature equalization component includes a multi-slot insulation sleeve;

[0007] The outer end of the transmission line core is sleeved with a multi-slot insulating sleeve, and a plurality of exchange support bars are equidistantly laid on the outer end of the multi-slot insulating sleeve, and a plurality of raised heat exchange bars are equidistantly bonded at the outer end of the multi-slot insulating sleeve corresponding to the position of the exchange support bar, and a hollow elastic bar is clamped between two adjacent raised heat exchange bars, and an exchange shielding bar is wrapped around the outer ends of the raised heat exchange bar and the hollow elastic bar, and an inner insulating sleeve is fixed to the outer end of the inner insulating sleeve, and a plurality of inner buffer support bars are equidistantly bonded to the outer end, and an inner flame retardant sleeve is fixed to the outer end of several of the inner buffer support bars, and a plurality of outer buffer support bars are bonded to the outer end of the inner flame retardant sleeve, and a plurality of compression hollow cavities are equidistantly opened on the inner sides of the inner buffer support bars and the outer buffer support bars, and a plurality of outer buffer support bars are sleeved with a three-tube heat exchange rack on the outer ends;

[0008] The outer end of the three-tube heat exchange rack is equidistantly bonded with a number of hollow special-shaped strips, and a drying grid strip is embedded and installed inside the hollow special-shaped strip. The outer end of the three-tube heat exchange rack is located between two hollow special-shaped strips and an arc-shaped embedded strip is fixed. The outer end of the arc-shaped embedded strip is laid with a heat exchange insulation sleeve, and the outer end of the heat exchange insulation sleeve is equidistantly wrapped with a number of anti-stab arc-shaped strips, and the outer ends of several of the anti-stab arc-shaped strips are fixed with external convex snap-fit sleeves. The outer end of the external convex snap-fit sleeve is equidistantly provided with a number of isolation shielding strips, and the outer end of the external convex snap-fit sleeve is equidistantly bonded with a number of internal pressure limiting strips, and the outer end of the internal pressure limiting strip is fixed with an external flame retardant sleeve. The outer end of the external flame retardant sleeve is equidistantly bonded with a number of multi-convex anti-stab strips, and the outer ends of several multi-convex anti-stab strips are laid with external pressure inner groove pipes, and the outer ends of the external pressure inner groove pipes are sleeved with a protective insulating sleeve.

[0009] According to the above technical solution, a special-shaped inner hole strip is fixed to the middle of the inner side of the three-tube heat exchange rack, a flame-retardant protective sleeve is clamped on the inner side of the special-shaped inner hole strip, an insulating isolation sleeve is fixed on the inner side of the flame-retardant protective sleeve, and a grounding wire core is fixed on the inner side of the insulating isolation sleeve;

[0010] The inner sides of the external pressure inner groove tube and the internal pressure limiting strip are both equidistantly provided with a plurality of telescopic fixing cavities, and the outer end of the external pressure inner groove tube is equidistantly bonded with a plurality of bonding inner embedded strips.

[0011] According to the above technical solution, the inner end of the raised heat exchange strip fits with the outer end of the exchange support strip, the longitudinal section of the raised heat exchange strip is T-shaped, and the outer diameter of the inner slow support strip is equal to the inner diameter of the inner flame retardant sleeve.

[0012] According to the above technical solution, the outer diameter of the inner flame retardant sleeve is equal to the inner diameter of the outer buffer support strip, and the longitudinal sections of the compression hollow cavity and the telescopic fixing cavity are both arc-shaped.

[0013] According to the above technical solution, the longitudinal section of the special-shaped inner hole strip is Y-shaped, and the side ends of the arc-shaped inner embedded strip are fitted with the side ends of the hollow special-shaped strip.

[0014] According to the above technical solution, the longitudinal section of the arc-shaped embedded strip is I-shaped, and the outer end of the hollow special-shaped strip is in contact with the inner end of the heat exchange insulation sleeve.

[0015] According to the above technical solution, the inner end of the internal pressure limiting strip is fitted with the outer end of the isolation shielding strip, the inner diameter of the internal pressure limiting strip is equal to the outer diameter of the isolation shielding strip, and the adhesive embedded strip is inserted and installed inside the protective insulating sleeve.

[0016] According to the above technical solution, a double-protection component is provided at the outer end of the protective insulating sleeve;

[0017] The double guard assembly includes a fitting outer protrusion;

[0018] The outer end of the protective insulating sleeve is equidistantly bonded with a number of fitting outer protrusions, and the outer side of the fitting outer protrusion is symmetrically provided with an inner card fixing groove, and the inner side of the inner card fixing groove is sleeved with a connecting support block, and one end of the fitting outer protrusion and the connecting support block is provided with an insertion card hole, and the inner side of the insertion card hole is sleeved with a fixing pin, and the top ends of the multiple connecting support blocks are fixed with a top protective elastic plate, and the bottom ends of the multiple connecting support blocks are fixed with a bottom isolation hard plate, and the bottom end of the top protective elastic plate and the top end of the bottom isolation hard plate are both provided with a bonding fixing groove, wherein the inner side of the bonding fixing groove located at the position of the top protective elastic plate is bonded with an elastic buffer plate, and the inner side of the bonding fixing groove located at the position of the bottom isolation hard plate is bonded with a drying adsorption cage, and the top and bottom ends of the top protective elastic plate and the bottom isolation hard plate are both provided with a card connection groove.

[0019] According to the above technical solution, the longitudinal section of the fitting outer protrusion is T-shaped, the bottom end of the top protective elastic plate and the top end of the bottom isolation hard plate are both fitted with the outer end of the protective insulating sleeve, and the longitudinal sections of the top protective elastic plate and the bottom isolation hard plate are both arc-shaped.

[0020] According to the above technical solution, the side end of the connecting support block is fitted with the side end of the fitting outer protrusion block, and the cross-sections of the top protective elastic plate and the bottom isolation hard plate are Z-shaped.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. A strong protection temperature equalization component is provided. The cable is insulated and isolated layer by layer from the inside to the outside through a multi-slot insulation sleeve, an inner insulation sleeve, an insulation isolation sleeve, a heat exchange insulation sleeve and a protective insulation sleeve, and multiple layers of different structures are separated to avoid mutual influence between the structures and improve the stability of cable operation. The heat is conducted outward by exchanging support bars and raised heat exchange bars, and multiple groups of raised heat exchange bars are used for contact heat exchange to achieve internal multi-position temperature balance. The exchange shielding bars, three-tube heat exchange racks, puncture-proof arc bars, isolation shielding bars and multi-convex puncture-proof bars are used to conduct heat outward layer by layer to achieve internal and external heat exchange treatment, and cooperate with the external puncture-proof arc bars, isolation shielding bars and multi-convex puncture-proof bars to achieve external contact heat exchange, thereby achieving external heat balance treatment. The use of multi-position internal and external heat exchange and the cooperation of multiple groups of components can achieve simultaneous heat exchange treatment in multiple external positions, balance the operating temperature and surface temperature of the cable, slow down the aging of the cable and extend the service life of the cable.

[0023] The exchange support bar and the multi-slot insulating sleeve are compressed and bent by the hollow elastic bar to achieve full extrusion and fit between the multi-slot insulating sleeve and the wire core. The inner slow support bar and the outer slow support bar are bent and extruded, and the air in the compressed hollow cavity flows from the bending point to both sides. The increased air pressure on both sides is used to squeeze the inside of the wire core to achieve full fit between the inner flame retardant sleeve and the inner slow support bar and the outer slow support bar. The middle part of the wire core is extruded and bent by the special-shaped inner hole bar. The internal pressure limiting bar and the external pressure inner slot tube are bent, and the air in the telescopic fixed cavity flows from the bending point to both sides. The outer flame retardant sleeve is restricted by multi-point same pressure to achieve full internal extrusion restriction, and the elastic bending and expansion are used to achieve effective elastic support of the internal components, reducing the internal elasticity. Multiple components are squeezed against each other during bending, and the internal looseness and damage are reduced, thereby avoiding ionization and hard damage.

[0024] Through the cooperation of multiple sets of internal heat exchange components, and the cooperation of internal elastic telescopic extrusion components and multiple sets of flame retardant components, and the protection treatment with multiple sets of anti-puncture strips, the uneven internal laying position can be reduced during cable laying, and at the same time, the damage to the cable due to large temperature differences and impact can be avoided. It effectively solves the problem in the existing technology that the cable is subjected to continuous small bends, resulting in looseness and damage. It is effectively suitable for uneven environments, and uses internal and external heat exchange and multi-point temperature balance to slow down the aging speed and extend the service life.

[0025] 2. A double-guard assembly is provided, wherein the fitting outer convex block is fixed to the side end of the protective insulating sleeve, the elastic buffer plate and the drying adsorption cage are fixed to the inner side of the adhesive fixing groove, the connecting support block is embedded into the inner side of the inner card fixing groove, and the fitting outer convex block and the connecting support block are clamped and limited by the fixing pins and the inserted clamping holes. Through multiple groups of clamping restrictions at different positions, multiple groups of top guard elastic plates and bottom partition hard plates are fixed to the top and bottom ends of the side ends of the protective insulating sleeve, and the elastic buffer plate is used to perform elastic buffering between the top guard elastic plate and the protective insulating sleeve, and the bottom partition hard plate is used to perform hard insulation on the bottom. The cable is separated from the support, which reduces the extrusion damage and impact damage to the bottom of the protective insulation sleeve caused by the uneven ground inside the mine and the falling of ore from the top, ensuring the integrity of the cable's external insulation layer, and reducing the probability of damage to the wire core caused by the penetration of sharp objects, thereby improving the safety of cable operation. The two sets of top protective elastic plates and the two sets of bottom partition hard plates are snap-connected by the snap-connecting grooves to form a combined guard plate to achieve large-area protection. The protection area can be increased or decreased according to the operating environment, and individual components can be replaced to facilitate daily maintenance and improve ease of use.

[0026] In summary, by cooperating with the strong protection and temperature equalization components and the double protection components, and utilizing the internal elastic protection support and external elastic support protection of the cable, internal and external synchronous protection is achieved, reducing the probability of internal damage due to cable bending and external impact damage, improving the stability of cable operation, and increasing the service life of the cable through the cooperation of multiple components. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0028] In the attached figure:

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 Schematic diagram of the structure of the strong protection temperature equalization component of the present invention;

[0031] Figure 3 It is a schematic diagram of the installation structure of the isolation shielding strip of the present invention;

[0032] Figure 4 Schematic diagram of the installation structure of the anti-stab arc strip of the present invention;

[0033] Figure 5 This is a schematic diagram of the installation structure of the hollow special-shaped strip of the present invention;

[0034] Figure 6 It is a schematic diagram of the installation structure of the compression hollow cavity of the present invention;

[0035] Figure 7 It is a schematic structural diagram of the double protection assembly of the present invention;

[0036] Figure 8 This is a schematic diagram of the installation structure of the drying adsorption cage of the present invention;

[0037] Numbers in the figure: 1, transmission line core;

[0038] 2. Strong protection and temperature equalization assembly; 201. Multi-slot insulation sleeve; 202. Exchange support bar; 203. Raised heat exchange bar; 204. Hollow elastic bar; 205. Exchange shield bar; 206. Inner insulation sleeve; 207. Inner buffer support bar; 208. Inner flame retardant sleeve; 209. Outer buffer support bar; 210. Compressed hollow cavity; 211. Three-tube heat exchange rack; 212. Special-shaped inner hole bar; 213. Flame retardant protective sleeve; 214. Insulation isolation sleeve; 215, grounding core; 216, hollow shaped strip; 217, drying grid strip; 218, arc-shaped embedded strip; 219, heat exchange insulation sleeve; 220, puncture-proof arc strip; 221, external convex snap-fit sleeve; 222, isolation shielding strip; 223, internal pressure limiting strip; 224, external flame-retardant sleeve; 225, multi-convex puncture-proof strip; 226, external pressure inner groove tube; 227, telescopic fixing cavity; 228, bonding embedded strip; 229, protective insulation sleeve;

[0039] 3. Double protection assembly; 301. Fitting outer protrusion; 302. Inner card fixing groove; 303. Connecting support block; 304. Inserting card hole; 305. Fixing pin; 306. Top protective elastic plate; 307. Bottom partition hard plate; 308. Adhesive fixing groove; 309. Elastic buffer plate; 310. Drying adsorption cage; 311. Card connection groove. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0041] Example: Figure 1-8 As shown, the present invention provides a technical solution, a reinforced mining cable, comprising a transmission core 1, and a strong protection temperature equalization component 2 is provided at the outer end of the transmission core 1;

[0042] The strong protection and temperature equalization component 2 includes a multi-slot insulating sleeve 201, an exchange support bar 202, a raised heat exchange bar 203, a hollow elastic bar 204, an exchange shielding bar 205, an inner insulating sleeve 206, an inner buffer support bar 207, an inner flame retardant sleeve 208, an outer buffer support bar 209, a compression hollow cavity 210, a three-tube heat exchange frame 211, a special-shaped inner hole bar 212, a flame retardant protective sleeve 213, an insulating isolation sleeve 214, a grounding core 215, a hollow special-shaped bar 216, a drying grid bar 217, an arc-shaped inner embedded bar 218, a heat exchange insulating sleeve 219, an anti-stab arc bar 220, an outer convex snap-fit sleeve 221, an isolation shielding bar 222, an internal pressure limiting bar 223, an outer flame retardant sleeve 224, a multi-convex anti-stab bar 225, an external pressure inner groove tube 226, a telescopic fixing cavity 227, an adhesive inner embedded bar 228 and a protective insulating sleeve 229;

[0043] The outer end of the transmission line core 1 is sleeved with a multi-slot insulating sleeve 201, and a number of exchange support bars 202 are equidistantly laid on the outer end of the multi-slot insulating sleeve 201. A number of raised heat exchange bars 203 are equidistantly bonded to the outer end of the multi-slot insulating sleeve 201 at positions corresponding to the exchange support bars 202. The inner end of the raised heat exchange bar 203 is in contact with the outer end of the exchange support bar 202. The longitudinal cross-section of the raised heat exchange bar 203 is T-shaped, so that it can be operated steadily during support engagement and connection limiting, ensuring the stability of the internal engagement and seal. A hollow elastic bar 204 is clamped between two adjacent raised heat exchange bars 203, and an exchange shielding bar 205 is wrapped around the outer ends of the raised heat exchange bar 203 and the hollow elastic bar 204. The outer ends of the exchange shielding bar 205 are fixed with an inner insulating sleeve 206, and the outer end of the inner insulating sleeve 206 is bonded with a number of inner buffer supports equidistantly. The outer ends of the support bars 207 and the plurality of inner slow support bars 207 are fixed with inner flame retardant sleeves 208, and the outer diameter of the inner slow support bar 207 is equal to the inner diameter of the inner flame retardant sleeve 208, and the outer diameter of the inner flame retardant sleeve 208 is equal to the inner diameter of the outer slow support bar 209, so as to achieve steady fitting connection and ensure steady processing during positioning restriction and elastic buffering, and avoid the situation where the inner flame retardant sleeve 208 is bent and damaged due to insufficient elastic buffering. The outer end of the inner flame retardant sleeve 208 is bonded with a plurality of outer slow support bars 209, and a plurality of compression hollow cavities 210 are equidistantly opened on the inner sides of the inner slow support bar 207 and the outer slow support bar 209. The longitudinal sections of the compression hollow cavity 210 and the telescopic fixed cavity 227 are both arc-shaped, so as to achieve steady extrusion processing and ensure use in different states. The outer ends of the plurality of outer slow support bars 209 are sleeved with three-tube heat exchange racks 211;

[0044] A special-shaped inner hole bar 212 is fixed to the middle of the inner side of the three-tube heat exchange frame 211. The longitudinal section of the special-shaped inner hole bar 212 is Y-shaped, which realizes steady positioning support and improves the stability of the support fixation. A flame retardant protective sleeve 213 is clamped on the inner side of the special-shaped inner hole bar 212. An insulating isolation sleeve 214 is fixed on the inner side of the flame retardant protective sleeve 213. A grounding wire core 215 is fixed on the inner side of the insulating isolation sleeve 214. Several hollow special-shaped bars 216 are equidistantly bonded to the outer end of the three-tube heat exchange frame 211. A drying grid bar 217 is embedded and installed on the inner side of the hollow special-shaped bar 216. The three-tube heat exchange frame 211 is fixed to the outer side of the three-tube heat exchange frame 211. The outer end of the arc-shaped inner strip 218 is fixed between the two hollow special-shaped strips 216. The side end of the arc-shaped inner strip 218 fits with the side end of the hollow special-shaped strip 216 to achieve steady support engagement, ensuring the stability of support positioning and support restriction. The longitudinal section of the arc-shaped inner strip 218 is an I-shaped shape to ensure stable heat exchange. The outer end of the hollow special-shaped strip 216 fits with the inner end of the heat exchange insulation sleeve 219 to achieve alignment and fit, ensuring stable heat exchange and insulation isolation. The outer end of the arc-shaped inner strip 218 is paved with the heat exchange insulation sleeve 219, and the outer end of the heat exchange insulation sleeve 219 is There are several stab-proof arc strips 220 wound at equal intervals, and the outer ends of the several stab-proof arc strips 220 are fixed with convex snap-fit sleeves 221. The outer ends of the convex snap-fit sleeves 221 are equidistantly provided with several isolation shielding strips 222. The outer ends of the convex snap-fit sleeves 221 are equidistantly bonded with several internal pressure limiting strips 223. The inner ends of the internal pressure limiting strips 223 are fitted with the outer ends of the isolation shielding strips 222. The inner diameter of the internal pressure limiting strips 223 is equal to the outer diameter of the isolation shielding strips 222, so as to achieve steady isolation processing and ensure the stability of shielding isolation. The outer end of the internal pressure limiting strip 223 is fixed with an external resistance The flame sleeve 224 and the outer end of the outer flame retardant sleeve 224 are equidistantly bonded with a number of multi-convex anti-stab strips 225, and the outer ends of the multi-convex anti-stab strips 225 are laid with external pressure inner groove tubes 226. The inner sides of the external pressure inner groove tube 226 and the internal pressure limiting strip 223 are equidistantly provided with a number of telescopic fixed cavities 227. The outer end of the external pressure inner groove tube 226 is equidistantly bonded with a number of bonding inner embedded strips 228. The outer end of the external pressure inner groove tube 226 is sleeved with a protective insulating sleeve 229, and the bonding inner embedded strip 228 is inserted and installed on the inner side of the protective insulating sleeve 229 to achieve steady insulation and support and limiting treatment.

[0045] The outer end of the protective insulating sleeve 229 is provided with a double protection component 3;

[0046] The double-guard assembly 3 includes a fitting outer protrusion 301, an inner card fixing groove 302, a connecting support block 303, an insertion card hole 304, a fixing pin 305, a top guard elastic plate 306, a bottom isolation hard plate 307, an adhesive fixing groove 308, an elastic buffer plate 309, a drying adsorption cage 310 and a card connection groove 311;

[0047] The outer end of the protective insulating sleeve 229 is equidistantly bonded with a number of fitting outer protrusions 301, the longitudinal section of the fitting outer protrusion 301 is T-shaped, which realizes steady alignment support and locking support, the outer side of the fitting outer protrusion 301 is symmetrically provided with an inner card fixing groove 302, the inner side of the inner card fixing groove 302 is sleeved with a connecting support block 303, the side end of the connecting support block 303 is fitted with the side end of the fitting outer protrusion 301, to ensure the stability of the alignment support, the fitting outer protrusion 301 and one end of the connecting support block 303 are provided with an insertion locking hole 304, the inner side of the insertion locking hole 304 is sleeved with a fixing pin 305, the top of multiple connecting support blocks 303 is fixed with a top protective elastic plate 306, the cross section of the top protective elastic plate 306 and the bottom isolation hard plate 307 is Z-shaped, which realizes steady combination limit, multiple A bottom isolation hard plate 307 is fixed to the bottom end of the connecting support block 303, and the bottom end of the top protective elastic plate 306 and the top end of the bottom isolation hard plate 307 are both fitted with the outer end of the protective insulating sleeve 229. The longitudinal sections of the top protective elastic plate 306 and the bottom isolation hard plate 307 are both arc-shaped, which achieves steady support and buffering and improves the stability of the processing support. The bottom end of the top protective elastic plate 306 and the top end of the bottom isolation hard plate 307 are both provided with adhesive fixing grooves 308, wherein the adhesive fixing grooves 308 located at the position of the top protective elastic plate 306 are bonded with an elastic buffer plate 309 on the inner side, wherein the adhesive fixing grooves 308 located at the position of the bottom isolation hard plate 307 are bonded with a drying adsorption cage 310 on the inner side, and the top and bottom ends of the top protective elastic plate 306 and the bottom isolation hard plate 307 are both provided with snap-fit connection grooves 311.

[0048] The working principle and usage process of the present invention are as follows: when laying the cable, the staff will fit the fitting outer protrusion 301 to the side end of the protective insulating sleeve 229 according to the laying environment, adhere the elastic buffer plate 309 to the inner side of the adhesive fixing groove 308 at the bottom end of the top protective elastic plate 306, fill the drying adsorption cage 310 with silica gel desiccant, adhere the drying adsorption cage 310 to the adhesive fixing groove 308 on the inner side of the bottom isolation hard plate 307, embed the connecting support block 303 into the inner side of the inner card fixing groove 302, embed the fixing pin 305 into the inner side of the insertion card hole 304, and use the fixing pin 305 to fix the fitting outer protrusion 301 and the connecting support block 303, so as to fix the top protective elastic plate 306 to the top of the side end of the protective insulating sleeve 229 according to the actual environment, and fix the bottom isolation hard plate 307 to the protective insulating sleeve At the bottom of the side end of 229, an elastic buffer plate 309 is used to elastically buffer the top protective elastic plate 306 and the protective insulating sleeve 229, and a bottom isolation hard plate 307 is used to provide hard isolation support for the bottom, thereby reducing the possibility of extrusion and damage to the bottom of the protective insulating sleeve 229 caused by the uneven ground inside the mine. The top protective elastic plate 306 is used to limit and protect the top to avoid the top from being hit and causing concave damage, thereby improving the safety of cable operation. The two groups of top protective elastic plates 306 are clamped together by the clamping connection groove 311, and the two groups of bottom isolation hard plates 307 are clamped and restricted by the clamping connection groove 311 to achieve a stable connection, thereby forming a combined guard plate, achieving large-area protection, and when the cable is damaged, only the damaged part can be replaced, which is convenient for daily maintenance.

[0049] During the operation of the cable, the multi-slot insulating sleeve 201 is used to isolate the power supply environment of the internal transmission core 1 from the external environment, and the heat generated by the conduction of the internal transmission core 1 is discharged outward. The heat is gradually conducted outward along the multi-slot insulating sleeve 201, the exchange support bar 202, and the raised heat exchange bar 203, realizing heat conduction from the inside to the outside. The heat is gradually conducted outward along the raised heat exchange bar 203, the exchange shielding bar 205, the inner insulating sleeve 206, the inner slow support bar 207, the inner flame retardant sleeve 208, the outer slow support bar 209 and the three-tube heat exchange frame 211, and then conducted to the outside of the cable by the arc-shaped embedded bar 218. And through the multiple layers gradually conducting heat outward, the heat conduction area is increased, and at the same time the multiple layers are adhered to each other to realize the flow of heat in multiple positions and realize the internal heat balance. Through the mutual exchange between the inside and the outside, the internal and external heat of multiple positions can be balanced when long-distance power supply is realized, avoiding the large temperature difference in each power supply area when the cable is running in the hole, resulting in more serious thermal expansion and contraction of the cable, causing single-point overheating and single-point overcooling of the cable, causing the core inside the cable to expand and contract at different levels, causing the core and the outer layer of the cable to be delaminated, and overheating can cause regional spontaneous combustion of the cable;

[0050] During the use of the cable, the exchange support strip 202 is used to extrude and limit the interior, and the multi-slot insulating sleeve 201 is contacted and extruded to achieve steady fitting, thereby avoiding a large gap between the transmission core 1 and the multi-slot insulating sleeve 201, thereby effectively avoiding the ionization of the cable due to separation. The hollow elastic strip 204, the inner slow support strip 207 and the outer slow support strip 209 are used to buffer and support the internal curved core. When the core bends to one side, the internal compressed hollow cavity 210 and the hollow elastic strip 204 are squeezed synchronously to discharge the air from the center point of extrusion to both sides to achieve unidirectional extrusion. The cavity is used for buffering to reduce the internal extrusion to cause a large degree of extrusion damage to the internal flame retardant sleeve 208, and the hollow elastic strip 20 4. The inner buffer support bar 207 and the outer buffer support bar 209 provide buffering support and extrusion support for the inner insulating sleeve 206, the exchange shielding bar 205 and the raised heat exchange bar 203, further improving the extrusion fit of the internal transmission core 1 and the multi-slot insulating sleeve 201, achieving steady buffering and extrusion engagement, reducing damage to internal components caused by bending, and achieving steady internal protection. The cable is grounded through the grounding core 215 and the insulating isolation sleeve 214, and the grounding core 215 is isolated by the flame-retardant protective sleeve 213. The interior is buffered and folded by the special-shaped inner hole bar 212, so that the interior can be steadily supported and extruded during bending, reducing the extrusion damage of the external core to the internal grounding core 215, and further improving the stability and safety of the core.

[0051] The three-tube heat exchange rack 211 is used to support, position and fix the internal multiple groups of transmission line cores 1 and components, and the silica gel desiccant in the hollow special-shaped strips 216 and the drying grid strips 217 is used to dry the inside of the cable, and the cable interface can be dried to prevent moist air from entering the working position of the core. The internal and external heat exchange treatment is achieved through the arc-shaped embedded strips 218 and the heat exchange insulation sleeve 219. The anti-stab arc strip 220 is used to isolate and protect the outside to prevent external sharp objects from piercing the inside of the cable and damaging the core. The external convex snap-fit sleeve 221 is used to squeeze and limit the internal stab arc strip 220 to avoid loose separation inside. The core is shielded by the isolation shielding strip 222, and the internal pressure limiting strip 223 and the external pressure inner groove tube 226 are used in conjunction with the telescopic fixing cavity 227 to isolate the shielding strip 222, the external flame retardant sleeve 224 and the multi-convex anti-stab strip 22 5 performs extrusion buffering to achieve steady operation of external bending and contraction, improves the operational stability and safety of external protective components, avoids damage to components due to bending that affects the effect of external protection, reduces the sharpness of sharp components through the arc structure on the surface of the multi-convex anti-stab strip 225, and at the same time avoids some components from piercing the inside of the cable, and rigidly isolates the inside and outside through the anti-stab arc strip 220 and the multi-convex anti-stab strip 225 to reduce puncture damage, performs flame retardant treatment on the inside through the inner flame retardant sleeve 208, and at the same time performs flame retardant treatment on the outside through the outer flame retardant sleeve 224 to reduce the occurrence of comprehensive damage to the cable due to high-temperature combustion inside and outside, controls the spontaneous combustion within a small range, facilitates subsequent maintenance and replacement by staff, reduces maintenance costs, and rigidly enhances the protective insulating sleeve 229 through the bonding of the inner embedded strip 228, and cooperates with the protective insulating sleeve 229 for insulation isolation protection to improve the protection effect.

[0052] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reinforced mining cable, comprising a transmission core (1), characterized in that: The outer end of the transmission line core (1) is provided with a strong protection temperature equalization component (2); The strong protection and temperature equalization component (2) comprises a multi-slot insulation sleeve (201); The outer end of the transmission line core (1) is sleeved with a multi-slot insulation sleeve (201), and a plurality of exchange support bars (202) are laid at equal intervals on the outer end of the multi-slot insulation sleeve (201). A plurality of raised heat exchange bars (203) are bonded at equal intervals at the positions of the exchange support bars (202) on the outer end of the multi-slot insulation sleeve (201), and a hollow elastic bar (204) is clamped between two adjacent raised heat exchange bars (203). The outer ends of the raised heat exchange bars (203) and the hollow elastic bar (204) are wrapped with exchange shielding bars (205), and the exchange shielding bars ( 205) is fixed with an inner insulating sleeve (206) at the outer end, a plurality of inner buffer support bars (207) are bonded equidistantly to the outer end of the inner insulating sleeve (206), an inner flame retardant sleeve (208) is fixed to the outer ends of a plurality of the inner buffer support bars (207), a plurality of outer buffer support bars (209) are bonded to the outer end of the inner flame retardant sleeve (208), a plurality of compressed hollow cavities (210) are equidistantly opened on the inner sides of the inner buffer support bars (207) and the outer buffer support bars (209), and a three-tube heat exchange frame (211) is sleeved on the outer ends of a plurality of the outer buffer support bars (209); The outer end of the three-tube heat exchange frame (211) is bonded with a plurality of hollow special-shaped strips (216) at equal intervals, and a drying grid strip (217) is embedded and installed inside the hollow special-shaped strip (216). The outer end of the three-tube heat exchange frame (211) is fixed with an arc-shaped embedded strip (218) between two hollow special-shaped strips (216), and the outer end of the arc-shaped embedded strip (218) is paved with a heat exchange insulation sleeve (219). The outer end of the heat exchange insulation sleeve (219) is wrapped with a plurality of puncture-proof arc-shaped strips (220) at equal intervals, and the outer ends of the plurality of puncture-proof arc-shaped strips (220) are fixed with external convex engaging members. The outer end of the outer convex snap-fit sleeve (221) is provided with a plurality of isolation shielding strips (222) at equal intervals, the outer end of the outer convex snap-fit sleeve (221) is bonded with a plurality of internal pressure limiting strips (223) at equal intervals, the outer end of the internal pressure limiting strip (223) is fixed with an outer flame retardant sleeve (224), the outer end of the outer flame retardant sleeve (224) is bonded with a plurality of multi-convex anti-stab strips (225) at equal intervals, the outer ends of the plurality of multi-convex anti-stab strips (225) are paved with external pressure inner groove tubes (226), and the outer end of the external pressure inner groove tube (226) is sleeved with a protective insulating sleeve (229).

2. A reinforced mining cable according to claim 1, characterized in that: A special-shaped inner hole strip (212) is fixed to the middle of the inner side of the three-tube heat exchange frame (211), a flame retardant protective sleeve (213) is clamped on the inner side of the special-shaped inner hole strip (212), an insulating isolation sleeve (214) is fixed on the inner side of the flame retardant protective sleeve (213), and a grounding wire core (215) is fixed on the inner side of the insulating isolation sleeve (214); The inner sides of the external pressure inner groove tube (226) and the internal pressure limiting strip (223) are both provided with a plurality of telescopic fixing cavities (227) at equal intervals, and the outer end of the external pressure inner groove tube (226) is bonded with a plurality of bonding inner embedded strips (228) at equal intervals.

3. A reinforced mining cable according to claim 1, characterized in that: The inner end of the raised heat exchange strip (203) is fitted with the outer end of the exchange support strip (202), the longitudinal section of the raised heat exchange strip (203) is T-shaped, and the outer diameter of the inner slow support strip (207) is equal to the inner diameter of the inner flame retardant sleeve (208).

4. A reinforced mining cable according to claim 2, characterized in that: The outer diameter of the inner flame retardant sleeve (208) is equal to the inner diameter of the outer slow support strip (209), and the longitudinal sections of the compression hollow cavity (210) and the telescopic fixing cavity (227) are both arc-shaped.

5. A reinforced mining cable according to claim 2, characterized in that: The longitudinal section of the special-shaped inner hole strip (212) is Y-shaped, and the side end of the arc-shaped inner embedded strip (218) is in contact with the side end of the hollow special-shaped strip (216).

6. A reinforced mining cable according to claim 1, characterized in that: The longitudinal section of the arc-shaped embedded strip (218) is I-shaped, and the outer end of the hollow special-shaped strip (216) is in contact with the inner end of the heat exchange insulation sleeve (219).

7. A reinforced mining cable according to claim 2, characterized in that: The inner end of the internal pressure limiting strip (223) is fitted with the outer end of the isolation shielding strip (222), the inner diameter of the internal pressure limiting strip (223) is equal to the outer diameter of the isolation shielding strip (222), and the bonding inner embedded strip (228) is inserted and installed on the inner side of the protective insulation sleeve (229).

8. A reinforced mining cable according to claim 1, characterized in that: A double-protection component (3) is provided at the outer end of the protective insulating sleeve (229); The double protection assembly (3) includes a fitting outer protrusion (301); The outer end of the protective insulating sleeve (229) is equidistantly bonded with a plurality of fitting outer protrusions (301), the outer side of the fitting outer protrusion (301) is symmetrically provided with an inner card fixing groove (302), the inner side of the inner card fixing groove (302) is sleeved with a connecting support block (303), one end of the fitting outer protrusion (301) and the connecting support block (303) is provided with an insertion engaging hole (304), the inner side of the insertion engaging hole (304) is sleeved with a fixing pin (305), the top ends of the plurality of connecting support blocks (303) are fixed with a top protective elastic plate (306), and the plurality of connecting support blocks ( A bottom isolation hard plate (307) is fixed at the bottom end of the top elastic plate (306), and an adhesive fixing groove (308) is provided at the bottom end and the top end of the bottom isolation hard plate (307), wherein an elastic buffer plate (309) is adhered to the inner side of the adhesive fixing groove (308) located at the position of the top elastic plate (306), wherein a drying adsorption cage (310) is adhered to the inner side of the adhesive fixing groove (308) located at the position of the bottom isolation hard plate (307), and a snap-fit connection groove (311) is provided at the top and bottom ends of the top elastic plate (306) and the bottom isolation hard plate (307).

9. A reinforced mining cable according to claim 8, characterized in that: The longitudinal section of the fitting outer protrusion (301) is T-shaped, the bottom end of the top protective elastic plate (306) and the top end of the bottom isolation hard plate (307) are both fitted with the outer end of the protective insulating sleeve (229), and the longitudinal sections of the top protective elastic plate (306) and the bottom isolation hard plate (307) are both arc-shaped.

10. A reinforced mining cable according to claim 8, characterized in that: The side end of the connecting support block (303) is fitted with the side end of the fitting outer protrusion (301), and the cross-sections of the top protective elastic plate (306) and the bottom isolation hard plate (307) are Z-shaped.

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