CN201527811U

CN201527811U - Novel cable for coal winning machine

Info

Publication number: CN201527811U
Application number: CN2009201881824U
Authority: CN
Inventors: 邓九旺; 叶明竹
Original assignee: Anhui Huayu Cable Group Co Ltd
Current assignee: Anhui Huayu Cable Group Co Ltd
Priority date: 2009-10-12
Filing date: 2009-10-12
Publication date: 2010-07-14
Anticipated expiration: 2019-10-12

Abstract

The utility model relates to a novel cable for a coal winning machine. The novel cable comprises control wire cores, power wire cores and ground wire cores; the control wire cores are made by extruding an insulation layer outside three or four control wire core conducting wires; the power wire cores are made by extruding an insulation layer and a semi-conductive shielding layer outside a conductor; the ground wire cores are made by extruding a semi-conductive shielding layer outside the conductor; three or four control wire cores are positioned in the middle of the cable; three power wire cores and three ground wire cores are uniformly distributed outside the control wire cores to form a cable core; and an inner sheath, a fiber woven reinforced layer and an outer sheath are wrapped outside the cable core in sequence. In the utility model, the control wire core conductor is formed by weaving tinned soft copper wire, of which the diameter of filament is less than 0.2mm, outside the carbon fiber, therefore, the intensity and the softness of the control wire core conductor of the wire core are improved; the control wire cores extruded by the insulation layer is twisted in fine pitch and then is placed in the center of the cable, therefore, the service life of the cable is effectively prolonged; and the ground wire core conductor is divided into three parts and placed among the power wire cores, therefore, the electrostatic prevention requirement of the cable for the coal winning machine is met.

Description

Novel electric cable for coal mining machine

Technical field

The utility model relates to a kind of electric cable for coal mining machine.

Background technology

Traditional construction of cable is the center that the ground core is placed on cable, control the stranded back of core extruded insulation layer fine pith for 3 or 4 and make the 4th cores with power core stranding, the control line core conductor adopts normal zinc-plated soft copper skein silk to close conductor, and outer jacket adopts the combining structure of inner sheath+fibrage reinforced layer+oversheath equally.But the disconnected core problem of control core is an electric cable for coal mining machine professional difficult problem in the use, has a strong impact on the useful life of electric cable for coal mining machine.

Summary of the invention

For the disconnected core problem of the control core that solves electric cable for coal mining machine, the utility model provides a kind of improved novel electric cable for coal mining machine.

Concrete architecture advances technical scheme is as follows:

Novel electric cable for coal mining machine comprises control core, power core and ground core, described 3 or 4 control cores are made by control line core conductor extruded insulation layer, the power core is that outer extruded insulation layer of conductor and semiconductive shielding layer are made, and the ground core is that conductor extrudes semiconductive shielding layer outward and makes; 3 or 4 stranded control cores are positioned at the cable core middle part, and cable core is formed in three power cores and three uniform control core outsides that are positioned at of ground core, and the described cable core outside is wrapped in inner sheath, fibrage reinforced layer and oversheath successively.

To be filament diameter be woven in outside the carbon fiber less than the zinc-plated soft copper silk of 0.2mm described control line core conductor.

The utility model redesigns cable according to the instructions for use and the characteristic of electric cable for coal mining machine: 1. the control line core conductor is adopted following structure: a, the carbon fiber that flexibility is better, intensity is higher is placed on conductor central authorities; B, employing filament diameter are woven in outside the carbon fiber less than the zinc-plated soft copper silk of 0.20mm.2. will control the center that core extruded insulation layer fine pith is placed on cable after stranded, the useful life of effectively having improved cable.3. ground wire core conductor one being divided into three is placed on and has satisfied the requirement of electric cable for coal mining machine antistatic between the power core.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

Referring to Fig. 1, novel electric cable for coal mining machine comprises control core, power core and ground core.The control core is made by 3 or 4 control line core conductors, 3 extruded insulation layers 4, and to be filament diameter be woven in outside the carbon fiber less than the zinc-plated soft copper silk of 0.2mm the control line core conductor; The power core is that power line core conductor 1 outer extruded insulation layer 4 and semiconductive shielding layer 5 are made.The ground core is to extrude semiconductive shielding layer 5 outside the ground wire core conductor 2 to make.Be positioned at the cable middle part after the control core is stranded, three power cores and three uniform control core outsides that are positioned at of ground core, the cable core outside is wrapped in inner sheath 7, fibrage reinforced layer 8 and oversheath 6 successively.

Claims

1. novel electric cable for coal mining machine, comprise control core, power core and ground core, described 3 or 4 control cores are made by control line core conductor extruded insulation layer, the power core is that outer extruded insulation layer of conductor and semiconductive shielding layer are made, the ground core is that conductor extrudes semiconductive shielding layer outward and makes, and it is characterized in that:

3 or 4 stranded control cores are positioned at the cable core middle part, and cable core is formed in three power cores and three uniform control core outsides that are positioned at of ground core, and the described cable core outside is wrapped in inner sheath, fibrage reinforced layer and oversheath successively.

2. novel electric cable for coal mining machine according to claim 1 is characterized in that: to be filament diameter be woven in outside the carbon fiber less than the zinc-plated soft copper silk of 0.2mm described control line core conductor.