CN211319765U

CN211319765U - Reinforced flexible cable for mining shovel car

Info

Publication number: CN211319765U
Application number: CN202020429978.0U
Authority: CN
Inventors: 陈成州; 黄冰玉
Original assignee: Shanghai Shangli Special Cable Co ltd
Current assignee: Shanghai Shangli Special Cable Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-08-21
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to a mining shovel car (buggy) strengthens flexible cable, include: the cable comprises a power cable core, an insulating sleeve, an inner protection layer, a fixing piece, a shielding layer, an armor layer and an outer protection wear-resistant layer; the power cable comprises four power cable cores, the four power cable cores are respectively wrapped with the insulating sleeves, the inner protection layer is wrapped on the outer sides of the four insulating sleeves, the fixing pieces are provided with four groups, the four groups of fixing pieces are arranged on the inner peripheral wall of the inner protection layer and distributed in a cross shape, and the four insulating sleeves are respectively fixed in the fixing pieces; the shielding layer, the armor layer and the outer protection wear-resistant layer are sequentially wrapped on the outer side of the inner protection layer, and the outer protection wear-resistant layer sequentially comprises a PUR polyurethane layer, glass fiber cloth, a TPE thermoplastic elastomer material layer and a nitrile composite material layer from inside to outside. The outer peripheral wall of the outer protective wear-resistant layer is provided with a plurality of bulges. The utility model discloses have stand wear and tear, the life's of extension cable effect.

Description

Reinforced flexible cable for mining shovel car

Technical Field

The utility model belongs to the technical field of the technique of cable and specifically relates to a flexible cable is strengthened to mining shovel car.

Background

The flexible cable that uses in the ore deposit is mainly applicable to the mine mobile device, requires it to have certain compliance like mining machine, jack-up conveyer etc. and makes things convenient for frequent round trip movement or crooked, and in the colliery, power supply mainly relies on the cable transmission, because the cable is longer, and the manual work is dragged and is wasted time and energy, consequently the cable is dragged to the electric scooptram of commonly using.

A Chinese patent with publication number CN203966600U discloses an anti-interference waterproof tensile mining cable, which comprises three power wire cores arranged in a triangle, wherein each power wire core comprises a conductor and a conductor shield, an insulation shield and an insulation shield which are wrapped on the conductor in a co-extrusion manner, an extruded inner protective layer, a monitoring wire core, an insulation wrapping tape, a total shielding layer, a waterproof layer and an extruded outer sheath are sequentially wrapped outside the power wire core, and filling is arranged between the power wire core and the inner protective layer which surrounds the power wire core; the power wire core is also provided with a grounding wire core, and the monitoring wire core and the grounding wire core form a monitoring loop for continuously monitoring the grounding system. The cable has the advantages of water resistance, excellent mechanical property, good shielding and anti-interference effects, capability of realizing continuous monitoring on the integrity of a grounding system, and good tensile strength in frequent movement.

The above prior art solutions have the following drawbacks: when the scraper drags the cable, the cable can rub with ores or surrounding solid objects, so that the outer sheath of the cable is seriously worn in the frequent use process, the power line core is easily exposed, the normal use of the cable is influenced, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flexible cable is strengthened to mining shovel car, has stand wear and tear, prolongs the life's of cable advantage to prior art exists.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a mining shovel car reinforced flexible cable comprising: the cable comprises a power cable core, an insulating sleeve, an inner protection layer, a fixing piece, a shielding layer, an armor layer and an outer protection wear-resistant layer;

the power cable comprises four power cable cores, four insulation sleeves, four fixing pieces and four groups of insulation sleeves, wherein the four power cable cores are respectively wrapped by the insulation sleeves, the inner protection layer is wrapped on the outer sides of the four insulation sleeves, the four fixing pieces are arranged in four groups, the four fixing pieces are arranged on the inner peripheral wall of the inner protection layer and are distributed in a cross shape, and the four insulation sleeves are respectively fixed in the fixing pieces;

the shielding layer, the armor layer, outer protection wearing layer wrap up in proper order in the outside of interior sheath, outer protection wearing layer comprises PUR polyurethane layer, glass fiber cloth, TPE thermoplastic elastomer material layer and the compound bed of cloth of butyl fine from inside to outside in proper order, be equipped with a plurality of archs on the periphery wall of the compound bed of cloth of butyl fine.

By adopting the technical scheme, the power wire cores are tightly wrapped by the insulating sleeves to prevent the wire cores from scattering when the cable is extruded, meanwhile, each power wire core is separated and independent to facilitate the wiring of workers, the insulating sleeves can prevent the power wire cores from leaking electricity to ensure the personal safety of the workers, the anti-slip performance of the power wire cores is improved by the fixing piece, the anti-torsion performance of the cable is improved, the inner protective layer wraps a plurality of insulating sleeves together to enhance the anti-damage capability of the cable, the shielding layer is used for isolating the electromagnetic field of the cable from the external electromagnetic field, the armor layer can increase the mechanical strength of the cable, enhance the tensile strength, improve the anti-erosion capability, and prevent rats from biting and damaging the cable, the PUR polyurethane layer has the characteristics of high tensile strength, wear resistance and low temperature resistance, the insulating property of the glass fiber cloth is good, the insulating property of the outer layer of the cable is further enhanced, the, TPE thermoplastic elastomer material layer has high resilience, and is stand wear and tear, prevents cable extrusion deformation, and circulated use simultaneously can reduce environmental pollution, reduce cost, and the butyronitrile combined material layer can improve the cable softness characteristic, and the wearability is higher simultaneously, and the heat resistance is better, the corrosion resistance is strong, and outer protective wearing layer that multilayer material complex formed improves the wearability of cable, and the wearing resistance of outer protective wearing layer is further strengthened to the arch, prolongs the life of cable.

The present invention may be further configured in a preferred example, wherein the fixing member includes: connecting block and fixed pipe, the connecting block with the internal perisporium fixed connection of interior sheath, fixed pipe with connecting block fixed connection, fixed pipe box is located the outside of insulating cover.

Through adopting above-mentioned technical scheme, the fixed pipe can be fixed in interior sheath with the insulating sheath in, when the cable received external force wrench movement, the power sinle silk in the insulating sheath can not be twisted at will and take place deformation and twine together, also is difficult for taking place to warp during the extrusion.

The utility model discloses can further configure to, four in a preferred example be equipped with the connecting strip between the fixed pipe, the connecting strip is the cross form, the tip of connecting strip respectively with four fixed pipe is kept away from the one end fixed connection of connecting block.

Through adopting above-mentioned technical scheme, cross form connecting strip links four insulating covers as an organic whole, and the power wire core in the insulating cover is indirectly linked as an organic whole, is difficult for being separated, strengthens the tensile ability of cable, strengthens the difficult fracture of cable bulk strength.

The utility model discloses can further configure to in a preferred example, the armor with be equipped with the enhancement layer between the wearing layer, the enhancement layer adopts aramid fiber to weave and forms.

Through adopting above-mentioned technical scheme, the enhancement layer that aramid fiber was woven can guarantee that the cable keeps the cable stable when long stroke receive and releases and prevents twisting reverse the spiral, and toughness improves the tensile ability of cable simultaneously by force.

The utility model discloses can further configure to in a preferred example, the periphery wall of wearing layer is equipped with a plurality of phosphor strips, the phosphor strip is followed the length direction of cable is laid.

Through adopting above-mentioned technical scheme, the during operation in the colliery, the phosphor strip can give out light, reminds the staff to notice the position of cable, prevents that the cable from being rolled, and the staff also can in time find the export along the luminous position of cable phosphor strip under the outage condition.

The utility model discloses can further configure to in a preferred example, the shielding layer with be equipped with the flame retardant coating between the armor.

Through adopting above-mentioned technical scheme, the flame retardant coating guarantees that the cable has stronger fire behavior in the use, can not arouse the conflagration because of the cable, prevents simultaneously that fire from stretching along the cable, guarantees the electrical safety.

The utility model discloses can further configure into, four in a preferred example the power sinle silk outside the insulating cover sets up to different colours respectively.

Through adopting above-mentioned technical scheme, the insulating cover of different colours is convenient for the staff to distinguish the type of power sinle silk according to the colour, convenient and fast more when connecing the electricity.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the reinforcing layer woven by aramid fibers can ensure that the cable can keep stable anti-torsion spiral when the cable is wound and unwound in a long stroke, and meanwhile, the cable has strong toughness and the tensile capacity of the cable is improved;

2. the fireproof layer ensures that the cable has stronger fireproof performance in the use process, a fire disaster caused by the cable cannot happen, meanwhile, the fire is prevented from spreading along the cable, and the power utilization safety is ensured;

3. the insulating cover of different colours is convenient for the staff to distinguish the type of power sinle silk according to the colour, convenient and fast more when connecing the electricity.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Reference numerals: 1. a power wire core; 2. an insulating sleeve; 3. an inner protective layer; 4. a fixing member; 41. connecting blocks; 42. a fixed tube; 43. a connecting strip; 5. a shielding layer; 6. an armor layer; 7. an outer protective wear-resistant layer; 71. a PUR polyurethane layer; 72. glass fiber cloth; 73. a TPE thermoplastic elastomer material layer; 74. a nitrile-butadiene composite material layer; 75. a protrusion; 8. a reinforcing layer; 9. a fluorescent strip; 10. and a fire-proof layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, do the utility model discloses a flexible cable is strengthened to mining shovel car, include: the cable comprises a power wire core 1, an insulating sleeve 2, an inner protection layer 3, a fixing piece 4, a shielding layer 5, an armor layer 6 and an outer protection wear-resistant layer 7; the power cable core 1 is provided with four power cable cores, the power cable core 1 is formed by meshing and bundling a plurality of soft copper wires, the number of the insulation sleeves 2 is four, the insulation sleeves 2 are made of polyvinyl chloride plastics, the insulation sleeves 2 wrap the outsides of the four power cable cores 1 respectively, the inner protection layer 3 wraps the outer sides of the four insulation sleeves 2, the inner protection layer 3 is made of nitrile material, the fixing pieces 4 are provided with four groups, the four groups of fixing pieces 4 are arranged on the inner peripheral wall of the inner protection layer 3 and distributed in a cross shape, and the four insulation sleeves 2 are fixed in the fixing pieces 4 respectively; the shielding layer 5, the armor layer 6 and the outer protective wear-resistant layer 7 are sequentially wrapped on the outer side of the inner protection layer 3, the outer protective wear-resistant layer 7 is sequentially composed of a PUR polyurethane layer 71, glass fiber cloth 72, a TPE thermoplastic elastomer material layer 73 and a nitrile-butadiene composite material layer 74 from inside to outside, a plurality of bulges 75 are arranged on the outer peripheral wall of the nitrile-butadiene composite material layer 74, the bulges 75 and the nitrile-butadiene composite material layer 74 are integrally formed, and the bulges 75 are linearly arranged along the length direction of the cable and are totally provided with eight bulges.

Insulating boot 2 wraps up in power sinle silk 1 tightly, prevent that the cable sinle silk is in disorder when receiving the extrusion, separate every power sinle silk 1 simultaneously independently, make things convenient for the staff wiring, insulating boot 2 can prevent the electric leakage of power sinle silk 1, guarantee staff's personal safety, mounting 4 has increased power sinle silk 1's anti-slipping performance, the antitorque commentaries on classics performance of cable has been improved, inner sheath 3 strengthens the anti destructive power of cable with the 2 parcel of a plurality of insulating boots together, shielding layer 5 is used for keeping apart the electromagnetic field of cable and external electromagnetic field each other, armor 6 can increase the mechanical strength of cable, reinforcing tensile strength, improve anti-corrosion ability, it prevents that the mouse from biting the damage cable to carry.

A reinforcing layer 8 is arranged between the armor layer 6 and the wear-resistant layer, and the reinforcing layer 8 is formed by weaving aramid fibers. The reinforcing layer 8 woven by aramid fibers can ensure that the cable can keep stable and torsion-proof spiral when being wound and unwound in a long stroke, and meanwhile, the tensile capacity of the cable is improved due to strong toughness.

A fire-proof layer 10 is arranged between the shielding layer 5 and the armor layer 6. The fire-proof layer 10 is formed by compounding aluminum hydroxide, manganese hydroxide and other substances, and the fire-proof layer 10 ensures that the cable has strong fire-proof performance in the using process, can not cause fire disasters due to the cable, simultaneously prevents fire from spreading along the cable, and ensures the power utilization safety.

The fixing member 4 includes: connecting block 41 and fixed pipe 42, connecting block 41 and the interior perisporium fixed connection of interior sheath 3, connecting block 41, fixed pipe 42 and interior sheath 3 integrated into one piece, fixed pipe 42 and connecting block 41 fixed connection, the outside of insulating boot 2 is located to fixed pipe 42 cover. The fixed pipe 42 can be fixed in inner sheath 3 with insulating cover 2 in, when the cable received external force wrench movement, the power sinle silk 1 in the insulating cover 2 can not be twisted at will and take place deformation and the winding together, also is difficult for taking place to warp during the extrusion.

Connecting strips 43 are arranged among the four fixing tubes 42, the connecting strips 43 are made of hydrogenated nitrile rubber, the connecting strips 43 are in a cross shape, and the end parts of the connecting strips 43 are respectively bonded and fixed with one ends of the four fixing tubes 42, which are far away from the connecting block 41. The cross-shaped connecting strip 43 connects the four insulating sleeves 2 into a whole, and the power wire cores 1 in the insulating sleeves 2 are indirectly connected into a whole and are not easy to be separated, so that the tensile capacity of the cable is enhanced, and the overall strength of the cable is not easy to break.

The periphery wall of wearing layer is equipped with three phosphor strip 9, and phosphor strip 9 lays along the length direction of cable. During operation in the colliery, phosphor strip 9 can give out light, reminds the staff to notice the position of cable, prevents that the cable from being rolled, and the staff also can follow the luminous position of cable phosphor strip 9 and in time find the export under the outage condition.

The insulating sleeves 2 outside the four power wire cores 1 are respectively set to be different colors. The insulating cover 2 of different colours is convenient for the staff to distinguish the type of power sinle silk 1 according to the colour, convenient and fast more when connecing the electricity.

The implementation principle of the embodiment is as follows: PUR polyurethane layer 71 has high tensile strength, it is wear-resisting, low temperature resistant characteristics, the outer insulating nature of cable is further strengthened to glass fiber cloth 72 insulating nature, prevent the electric leakage, strengthen the tensile strength of cable, TPE thermoplastic elastomer material layer 73 has high resilience, it is wear-resisting, prevent cable extrusion deformation, but the while cyclic use, can reduce environmental pollution, reduce cost, the compound bed of material 74 of butyl fine can improve the flexible characteristic of cable, the wearability is higher simultaneously, the heat resistance is better, the corrosion protection can be strong, outer protecting wearing layer 7 that multilayer material complex formed improves the wearability of cable, protruding 75 further strengthens the wearability of outer protecting wearing layer 7, the life of extension cable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A mining shovel car strengthens flexible cable which characterized in that includes: the cable comprises a power cable core (1), an insulating sleeve (2), an inner protection layer (3), a fixing piece (4), a shielding layer (5), an armor layer (6) and an outer protection wear-resistant layer (7);

the power cable comprises four power cable cores (1), four insulation sleeves (2) and four fixing pieces (4), wherein the insulation sleeves (2) are respectively wrapped outside the four power cable cores (1), the inner protection layer (3) is wrapped outside the four insulation sleeves (2), the four fixing pieces (4) are arranged in four groups, the four fixing pieces (4) are arranged on the inner peripheral wall of the inner protection layer (3) and distributed in a cross shape, and the four insulation sleeves (2) are respectively fixed in the fixing pieces (4);

the shielding layer (5), armor (6), outer protecting wearing layer (7) wrap up in proper order in the outside of interior sheath (3), outer protecting wearing layer (7) from interior to exterior comprises PUR polyurethane layer (71), glass fiber cloth (72), TPE thermoplastic elastomer material layer (73) and butadiene acrylonitrile combined material layer (74) in proper order, be equipped with a plurality of archs (75) on the periphery wall of butadiene acrylonitrile combined material layer (74).

2. The mining shovel reinforcement flexible cable according to claim 1, characterized in that said fixing element (4) comprises: connecting block (41) and fixed pipe (42), connecting block (41) with the internal perisporium fixed connection of interior sheath (3), fixed pipe (42) with connecting block (41) fixed connection, fixed pipe (42) cover is located the outside of insulating cover (2).

3. The mining shovel car reinforced flexible cable as claimed in claim 2, characterized in that a connecting strip (43) is arranged between four fixed tubes (42), the connecting strip (43) is in a cross shape, and the ends of the connecting strip (43) are fixedly connected with one ends of the four fixed tubes (42) far away from the connecting block (41).

4. The mining shovel car reinforced flexible cable according to claim 1, characterized in that a reinforcing layer (8) is arranged between the armor layer (6) and the wear layer, and the reinforcing layer (8) is woven from aramid fibers.

5. The mining shovel car reinforced flexible cable according to claim 1, characterized in that the peripheral wall of the wear resistant layer is provided with fluorescent strips (9), and the fluorescent strips (9) are arranged along the length direction of the cable.

6. The mining shovel car reinforced flexible cable according to claim 1, characterized in that a fire-proof layer (10) is arranged between the shielding layer (5) and the armor layer (6).

7. The mining shovel truck reinforced flexible cable according to claim 1, characterized in that the insulating sleeves (2) outside the four power wire cores (1) are respectively provided with different colors.