CN201477949U

CN201477949U - Cable for carry-scraper

Info

Publication number: CN201477949U
Application number: CN2009201440357U
Authority: CN
Inventors: 南长江; 魏周荣; 滕玉平; 李英姿; 李洪文; 李爱英; 罗新春; 李国锋
Original assignee: GANSU CHANGTONG CABLE TECHNOLOGY Co Ltd
Current assignee: BAIYIN YOUSE CHANGTONG WIRE AND CABLE CO., LTD.
Priority date: 2009-08-29
Filing date: 2009-08-29
Publication date: 2010-05-19
Anticipated expiration: 2019-08-29

Abstract

The utility model relates to a cable, in particular to a cable for a carry-scraper mainly used for the iron mine type mining transportation industry. The cable for the carry-scraper comprises a plurality of cables evenly distributed on a cross section and an insulating protective layer clad outside the cables, and is characterized in that the cables comprise a reinforced core, a plurality of copper conductors, nylon reinforcing layers and insulating layers; a plurality of stands of the copper conductors are twisted outside the periphery of the reinforced core, the nylon reinforcing layers are clad outside the plurality of strands of the copper conductors, and the insulating layers are clad outside the nylon reinforcing layers; the inner core of the conductor, namely the reinforced core, is formed by twisting a plurality of copper-clad steel single wires; a braided reinforcing layer is clad outside the insulating layers; and an insulating external protective layer is clad outside the braided reinforcing layer, therefore, an internal and external combined protective layer is formed. The utility model has the advantages of high tensile strength, excellent wear resistant property and long service life. From the experience of users, the service life of the cable ranges from 6 months to 11 months, therefore, the cable can fully displace the imported product; and the price of the cable is only one third of that of the imported cable.

Description

The scraper cable

Technical field the utility model relates to a kind of cable, particularly a kind of scraper cable of mainly carrying industry to use by iron ore class mining.

Background technology rubber insulation iron ore is meant with the scraper cable and adopts the direct mine scraper of powering of cable or the power consumption cable of similar devices, move and lay use, this cable is had relatively high expectations to bending, anti-wear performance, especially tensile property, and mining its pulling force of scraper full load can reach 50000N.

Because iron ore is extremely abominable with the operational environment of scraper cable, scraper move ahead and during take-up cable be subjected to the friction of ore even obstacle and make cable frequently be subjected to severe friction and hard intensity pulling force and twisting resistance at work, it is very short that cable is scrapped the cycle, frequent replacing causes the mine production cost higher.The structure of common homemade scraper cable adopts usually and is extruded with the stranded steel wire of insulation rubber as strengthening core, the periphery of strengthening core is laid several cable conductors that are extruded with insulation rubber, common neoprene sheath rubber is as outer sheath material, and sheath is a single layer structure; Its tensile strength is lower, and anti-wear performance is poor, and useful life is about three months.Though import cable more homemade length in useful life, the price height causes mine production cost height equally.

With regard to the mining cable product, along with the raising day by day of mining machinery producing capacity and place capacity, adopt selecting for use in a large number of the direct scraper of powering of cable, the consumption of rubber insulation mining cable is increasing.

Answer the requirement of Orebody in Jingtieshan ore deposit, I technical staff of company organization specially go to mining area on-the-spot investigation such as Orebody in Jingtieshan ore deposit iron ore with the use operational environment of scraper cable and performance requirement etc.; Environment and the performance requirement thereof of learning the scraper cable have following characteristics:

The first, the iron ore work under bad environment of scraper cable, service cable need frequently move power supply in the tunnel, and cable directly contacts ore, and the anti-wear performance of protective coverings of cable requires high.

The second, scraper duration of work, cable are installed on the scraper pallet, move ahead under the pulling of scraper, translation or withdrawal, and cable is vulnerable to great pulling force and reverses, and the tensile property of cable and twisting property, anti-wear performance require high.

In view of the above, my company is in repeatedly trial-production, repeatedly on the basis on probation, developed the mining scraper cable of KYCGB sections of excellent combination properties such as satisfying Orebody in Jingtieshan ore deposit scraper power supply performance and wear-resisting, antitorque, tension.

Utility model content the technical problems to be solved in the utility model is to provide a kind of bending and anti-wear performance is good, tensile strength is high and the scraper cable of long service life.

It is as follows that the utility model solves the problems of the technologies described above the technical scheme of taking: a kind of scraper cable comprises several cables that are uniformly distributed in section and the insulation sheath that is coated on several cables outside; It is characterized in that: cable is made up of strengthening core, many copper conductors, nylon reinforced layer and insulating barriers; Strengthening core periphery outside is stranded multiply copper conductor, the outside covered with nylon reinforced layer of multiply copper conductor, nylon reinforced layer outside coated insulation layer.

Conductor inner core of the present utility model is that strengthening core is the stranded strand that forms of single line of many copper covered steels, is the stranded strand that forms of many copper covered steel single lines without annealing.Copper covered steel strand outside holds the high-strength nylon band as the nylon reinforced layer, and the nylon reinforced layer both can increase tensile strength, also can play buffer action.

Conductor wire core is stressed when spurring for reducing mining scraper cable, increases the stress that cable sheath bears, and as of the present utility model perfect, the outside of insulation sheath is coated with the braiding reinforced layer, and the outside of braiding reinforced layer is coated with the insulation outer jacket; Thereby constitute the inside and outside associating sheath that protects.Braiding reinforced layer its material selection intensity is ten times of steel wire and density is only strengthened for the light-duty aramid fiber high strength fibre of steel wire 1/10th, and some strands of every ingot had both guaranteed the whole cable pull resistance, had also improved the fail safe of cable, had alleviated weight.

Scraper cable of the present utility model uses through the user, and all surpass 6 months useful life, the longlyest reaches 11 months, fully import substitutes.And its price only is 1/3rd of import cable.

Outstanding feature of the present utility model is the tensile strength height, and anti-wear performance is excellent, long service life.

Description of drawings Fig. 1 is a structural representation of the present utility model,

Fig. 2 is the structural representation of strengthening core 2 among Fig. 1,

Fig. 3 is the structural representation of present stage scraper cable.

Among the figure: 1-cable, 2-strengthening core, 201-single line, 202-inner core, 203-skin, 3-nylon reinforced layer, 4-insulating barrier, 5-strand copper conductor, the 6-sheath that insulate, 7-weaves reinforced layer, the 8-outer jacket that insulate, 9-strengthens bone core, the stranded steel wire of 10-, 11-electro-insulating rubber layer.

Embodiment as shown in Figure 1; A kind of scraper cable comprises four cables 1 that are uniformly distributed in section and the insulation sheath 6 that is coated on four cable 1 outsides; It is characterized in that: every cable 1 is by strengthening core 2, form as the strand copper conductor 5 that is stranded in strengthening core 2 outsides, nylon reinforced layer 3 and the insulating barrier 4 of cable conductor; Referring to Fig. 2, strengthening core 2 is single line 201 stranded strands that form of seven copper covered steels, and promptly every single line 201 is by being that inner core 202 is formed with outer 203, and inner core 202 is steel matter, and outer 203 is copper materials; Strengthening core 2 periphery outside is stranded strand copper conductor 5 (the strand copper conductor 5 of present embodiment is six strands), the outside of six strands of copper conductors 5 coats the high-strength nylon band as nylon reinforced layer 3, nylon reinforced layer 3 both can increase tensile strength, also can play buffer action; Nylon reinforced layer 3 outside coated insulation layers 4.

Conductor wire core is stressed when spurring for reducing mining scraper cable, increases the stress that cable sheath bears, and as of the present utility model perfect, the outside of insulation sheath 6 is coated with braiding reinforced layer 7, and is coated with the outer jacket 8 that insulate in the outside of braiding reinforced layer 7.

Present stage common homemade scraper cable structure as shown in Figure 2: its middle part is provided with strengthens bone core 9, strengthens bone core 9 and is made up of stranded steel wire 10 and the electro-insulating rubber layer 11 that is coated on stranded steel wire 10 outsides; Strengthen the periphery of bone core 9 and evenly lay four cables 1, cable 1 is made up of with the insulating barrier 4 that is coated on copper conductor 5 outsides the copper conductor 5 as cable conductor, four cable 1 peripheral coated insulation outer jackets 8, and insulation outer jacket 8 is common neoprene rubbers; Insulation outer jacket 8 is a single layer structure.

The most perfect sheath of the present utility model has three layers, the sheath 6 that promptly insulate, insulation outer jacket 8 and be located between the two braiding reinforced layer 7.Visual gauge lattice difference, insulating barrier 4 Thickness Design are 1.8～2.4mm, are the rubber of base-material with ethylene propylene diene rubber, tensile strength＞6.5MPa; The thickness of insulation sheath 6 is 2.2～3.0mm, is the rubber of base-material in order to neoprene, tensile strength＞12MPa; The thickness of insulation outer jacket 8 is 3.5～5.0mm, is high-strength polyester elastomer (TPEE) material, tensile strength＞30MPa, elongation at break＞200%, tear strength＞150kN/m.

The stranded lay ratio of cable core of the present utility model ≯ 12 times, with present stage routine cable different be: cable core of the present utility model outside is that does not fill strand copper conductor 5 outsides, but looping high-strength nylon band is as nylon reinforced layer 3, to prevent the slippage between the cable core, increase the antitorque commentaries on classics performance of cable.

Cable model of the present utility model is defined as the KYCGB type, and K refers to iron ore usefulness, and Y refers to mobile usefulness, and C refers to scraper usefulness, and G refers to the copper covered steel reinforcement, and B refers to the braiding reinforcement.

Claims

1. a scraper cable comprises several cables that are uniformly distributed in section and the insulation sheath that is coated on several cables outside; It is characterized in that: every described cable (1) is made up of strengthening core (2), strand copper conductor (5), nylon reinforced layer (3) and insulating barrier (4); Described strengthening core (2) periphery outside is stranded described strand copper conductor (5), and the outside of described strand copper conductor (5) coats described nylon reinforced layer (3), and described nylon reinforced layer (3) outside coats described insulating barrier (4).

2. a kind of scraper cable as claimed in claim 1 is characterized in that: described strengthening core (2) is the stranded strands that form of many single lines (201), and every described single line (201) is made up of with the skin (203) of copper material the inner core (202) of steel matter.

3. a kind of scraper cable as claimed in claim 1 or 2 is characterized in that: the outside of described insulation sheath (6) is coated with braiding reinforced layer (7), and the outside of described braiding reinforced layer (7) is coated with insulation outer jacket (8).

4. a kind of scraper cable as claimed in claim 3 is characterized in that: described insulating barrier (4) is that ethylene propylene diene rubber is the rubber of base-material, and thickness is 1.8～2.4mm; Described insulation sheath 6 is that neoprene is the rubber of base-material, and thickness is 2.2～3.0mm; Described insulation outer jacket (8) is the high-strength polyester elastomer, and thickness is 3.5～5.0mm.