CN203118636U

CN203118636U - Mining high-voltage trailing rubber-jacketed flexible cable

Info

Publication number: CN203118636U
Application number: CN 201320135671
Authority: CN
Inventors: 储辉; 施永久; 刘景光; 徐庭元
Original assignee: Jiangsu Zhongmei Cable Co Ltd
Current assignee: Jiangsu Zhongmei Cable Co Ltd
Priority date: 2013-03-25
Filing date: 2013-03-25
Publication date: 2013-08-07
Anticipated expiration: 2023-03-25

Abstract

The utility model discloses a mining high-voltage trailing rubber-jacketed flexible cable which comprises a cable core. A plurality of power wire cores and a plurality of monitoring wire cores are stranded to form the cable core, an inner jacket is extruded on the outside of the cable core, an outer jacket is extruded on the outermost layer of the cable, and a reinforcing layer is further braided between the inner jacket and the outer jacket. Each of the three wire cores comprises a power conductor, an inner semiconductive shielding layer, a, a power wire core insulating layer, an outer semiconductive shielding layer and a metal shielding layer, and each inner semiconductive shielding layer, the corresponding power wire core insulating layer, the corresponding outer semiconductive shielding layer and the corresponding metal shielding layer are sequentially lapped on the outside of the corresponding power conductor; and each of the three monitoring wire cores comprises a monitoring conductor and a monitoring wire core insulating layer, and each monitoring wire core insulating layer is extruded on the outside of the corresponding monitoring conductor. The mining high-voltage trailing rubber-jacketed flexible cable has the advantages that properties of insulating and jacket materials are improved, a flexible reinforcing structure is adopted, and the mining high-voltage trailing rubber-jacketed flexible cable is additionally provided with the grounding monitoring wire cores and the reinforcing layer, so that the abrasion resistance, the corrosion resistance, the trailing resistance and the tensile strength of the cable are improved, the safety and service performance of the cable is enhanced, and the flexibility of the cable is unaffected.

Description

A kind of mining high-voltage towing rubber sleeve flexible cable

Technical field

The utility model relates to the electric wire field, specifically refers to a kind of mining high-voltage towing rubber sleeve flexible cable.

Background technology

Existing mining towing removal cable is generally three cores, four-core, five cores or six cored structures.Three-core cable core insulation is three-layer co-extruded, braided metal screen double as ground wire behind the extruded insulation, braiding back stranding; Knit wire not after all the other structure ideas cores are three-layer co-extruded, the ground core extrudes semi-conductive adhesive; This type of does not add filling when moving towing with the cable stranding and directly extrudes the individual layer sheath, and cable does not have reinforced layer, and does not generally monitor core.

The mobile rubber cable of existing mining towing is generally used in colliery power shovel, coal-winning machine, bagger, bucket machine, conveyer belt and mobile power distribution equipment etc. mechanically, this type of machinery is subjected to the restriction of job specification, the general use in the routine work environment, translational speed is comparatively slow, the cable retractable is on the bigger reel of bending radius, cable does not need rolling of the equipment that bears and pulling force, only need bear the weight of self part.

Along with the continuous appearance of high voltage, powerful jumbo on the mine, existing removal cable can't satisfy the needs of equipment.This type of high voltage, powerful device often are used in equipment such as power shovel that open coal mine uses, bagger, bucket machine, the environment that uses is very abominable, cable contacts nocuity materials such as silt, stone, sewage, greasy dirt for a long time, and the existing cable sheath material is common haloflex or the suitable material of performance, this sheath material causes wearing and tearing, the corrosion of restrictive coating for a long time easily in this environment, thereby has influence on the safe operating life of cable; Simultaneously, owing to be subjected to the restriction of large-scale engineering machinery equipment, this type of cable needs dilatory on construction ground for a long time, even need stand rolling of equipment, existing high pressure move the rubber cable core beat easily twist off core, the individual layer restrictive coating plays drum easily, generally have only half a year useful life, increased user's use cost; Secondly, existing mining towing removal cable does not have ground connection and detects core, because the cable environment for use is comparatively abominable, the insulated wire cores of cable insulation harm occurs easily in long-term drawing, roll in the use, if there is not ground connection to detect core, there is not the reinforced layer structure, when appearring in the cable master core, damage can't feed back to timely on the surveillance equipment, cause the damage of equipment easily, even the personnel that might cause injure.

The utility model content

Technical problem to be solved in the utility model provides a kind of mining high-voltage towing rubber sleeve flexible cable, has not only improved the tensile strength of wear-resisting, the corrosion-resistant and anti-towing of cable, has also increased the safe application performance of cable.

A kind of mining high-voltage towing rubber sleeve flexible cable described in the utility model, comprise cable core, described cable core monitors by some power cores and some that core is stranded and forms that cable core extrudes inner sheath outward, extrude oversheath at the cable outermost layer, between inner sheath and oversheath, also weave reinforced layer.

Further improve, described power core is three, be by the power conductor and successively wrapped semiconductive internal shield, power line core insulation layer, semiconductive outer shielding layer, metal screen layer outside the power conductor constitute; Described supervision core is three, is to monitor that by monitoring conductor and being extruded in the outer pilot wire core insulation layer of conductor constitutes.

Further improve, the intermediate gaps place was provided with packed layer when described three power cores extruded stranding.

Further improve, described reinforced layer is evenly woven by many aramid yarns intersections and forms.

Further improve, described inner sheath, oversheath adopt the neoprene sheath.

Further improve again, press the Ethylene Propylene Terpolymer insulating cement during described power line core insulation layer, pilot wire core insulation layer adopt.

The beneficial effects of the utility model are:

1, high strength, middle pressure Ethylene Propylene Terpolymer insulating cement that insulation property are good are adopted in insulation of the present utility model, its tensile strength reaches 14.0Mpa, be 3 times of common Ethylene Propylene Terpolymer tensile strength, and through research repeatedly, make the electric pressure of second third Insulation Material bring up to 35kV from 10kV, improved tensile strength and tear strength.

2, the utility model has adopted aramid yarn braiding reinforced layer, reinforced layer places between sheath and the outer jacket, many aramid yarns intersections are woven in the surface of cable sheath uniformly, and outside reinforced layer, closely extrude one deck outer jacket, thereby reinforced layer and inside and outside sheath are fitted tightly, tear resistance pulls performance with anti-can to guarantee to have preferably by cable in use, simultaneously, has also avoided cable cover(ing) to play bulging situation preferably and has occurred.

3, sheath of the present utility model adopts high strength, high anti-tear, wear-resisting neoprene sheath, its tensile strength reaches 16MPa, is 2 times of common rubber sheath, and has resistance to low temperature preferably, can guarantee cable in use, sheath can be good at protecting cable core to avoid damage; Simultaneously, can guarantee cable normally operation in-40 ℃ low temperature environment.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of the utility model embodiment 1.

Embodiment

As shown in Figure 1, a kind of mining high-voltage towing rubber sleeve flexible cable described in the utility model, comprise cable core, described cable core monitors by three power cores and three that core is stranded and forms, cable core extrudes inner sheath 9 outward, extrude oversheath 11 at the cable outermost layer, between inner sheath 9 and oversheath 11, also weave reinforced layer 10; The intermediate gaps place was provided with packed layer 6 when described three power cores extruded stranding.

Power core described above be by power conductor 1 and successively wrapped outside power conductor 1 semiconductive internal shield 2, press power line core insulation layer 3, peninsula electricity outer shielding layer 4, the metal screen layer 5 of Ethylene Propylene Terpolymer insulating cement to constitute in adopting; Described supervision core is to constitute by monitoring conductor 7 and being extruded in the pilot wire core insulation layer 8 that monitors pressure Ethylene Propylene Terpolymer insulating cement in conductor 7 outer the employings.

Embodiment 1:

As shown in Figure 2, compared to Figure 1, its cable core is by three power cores, two supervision cores and earthing conductor 12 stranded forming.

The utility model provides a kind of thinking and implementation method of mining high-voltage towing rubber sleeve flexible cable; concrete application approach is a lot; the above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvement, these improvement also should be considered as protection range of the present utility model.

Claims

1. a mining high-voltage pulls rubber sleeve flexible cable, comprise cable core, it is characterized in that: described cable core monitors by some power cores and some that core is stranded and forms, cable core extrudes inner sheath (9) outward, extrude oversheath (11) at the cable outermost layer, between inner sheath (9) and oversheath (11), also weave reinforced layer (10).

2. mining high-voltage according to claim 1 pulls rubber sleeve flexible cable, it is characterized in that, described power core is three, be by power conductor (1) and successively wrapped semiconductive internal shield (2), power line core insulation layer (3), semiconductive outer shielding layer (2), metal screen layer (5) outside power conductor (1) constitute.

3. mining high-voltage towing rubber sleeve flexible cable according to claim 1 is characterized in that described supervision core is three, is to monitor that by monitoring conductor (7) and being extruded in the outer pilot wire core insulation layer (8) of conductor (7) constitutes.

4. mining high-voltage towing rubber sleeve flexible cable according to claim 2 is characterized in that the intermediate gaps place was provided with packed layer (6) when described three power cores extruded stranding.

5. mining high-voltage towing rubber sleeve flexible cable according to claim 1 is characterized in that, described reinforced layer (10) is evenly woven by many aramid yarns intersections and forms.

6. mining high-voltage towing rubber sleeve flexible cable according to claim 1 is characterized in that described inner sheath (9), oversheath (11) adopt the neoprene sheath.