CN202384042U

CN202384042U - Rubber sleeve flexible cable for coal mining machine

Info

Publication number: CN202384042U
Application number: CN2011205459843U
Authority: CN
Inventors: 张冬冬; 张明新; 王海岭; 张红艳; 王飞; 杜永刚
Original assignee: Anhui Long'an Cable Group Co Ltd
Current assignee: Anhui Long'an Cable Group Co Ltd
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2012-08-15
Anticipated expiration: 2021-12-23

Abstract

The utility model discloses a rubber sleeve flexible cable for a coal mining machine. A cable core is formed by a control wire core and a plurality of power wire cores which are twisted together; the cable core is externally rapped by a fibrage reinforced layer and is extruded with a chloroprene rubber sheath layer; each of the power wire cores comprises an aramid fiber folded yarns arranged at the center and a tinning annealed copper wire wound the outer layer of the aramid fiber folded yarns; the tinning annealed copper wire is externally extruded with an ethylene-propylene rubber power wire core insulation layer and is wrapped by a metal fibrage layer; the control wire core comprises a control wire core conductor which is arranged at the center and is wound the outer layer of the armid fiber folded yarns; and the control wire core conductor is externally wrapped by an armid fiber reinforced layer and is extruded with an ethylene-propylene rubber control wire core insulation layer. The cable provided by the utility model has the properties of high tear resistance, high strength, high flame retardance, oil resistance, bending resistance and the like, and is particularly suitable for power connection for coal mining equipment.

Description

A kind of coal-winning machine rubber sleeve flexible cable

Technical field:

The utility model relates to a kind of coal-winning machine rubber sleeve flexible cable, belongs to technical field of electric wires and cables.

Background technology:

The colliery industry is as first of our domestic several big energy pillar industries, and the ratio that accounts for all kinds of energy total amounts is classified as about 70%, receives the requirement of economic development over a period to come, and the coal in China consumption figure will continue to rise.Yet the various coal excavation apparatus of the development that is accompanied by coal industry also arise at the historic moment, and coal-winning machine equipment is exactly an indispensable corollary equipment.Coal-winning machine equipment is that mechanical, the electric and hydraulic pressure of collection is the large-scale complicated system of one, and work under bad environment if fault will cause the interruption of whole coal work, causes enormous economic loss.Development along with coal industry; The function of coal-winning machine is more and more; The structure of himself, composition more sophisticated, thereby the reason that breaks down is also complicated thereupon, the cable of its use is exactly one of them that wherein breaks down easily; This just requires us will design a kind of supporting with it cable, and the common electric cable for coal mining machine of producing in the existing industry is nowadays cooperating coal-winning machine occasion Use Limitation fruit unsatisfactory.This just need we develop have under a kind of this kind adverse circumstances high anti-tear, high strength, high flame retardant, oil resistant, the cable of performances such as anti-bending.

Summary of the invention:

For overcoming the defective of prior art, the purpose of the utility model is to provide a kind of coal-winning machine rubber sleeve flexible cable, has performances such as height is anti-tear, high strength, high flame retardant, oil resistant, anti-bending, and the power supply of the coal excavation apparatus that is particularly useful for connects.

The utility model technical solution problem adopts following technical scheme:

A kind of coal-winning machine rubber sleeve flexible cable, cable conductor is by the control core and Duo Gen power core is stranded constitutes, and outside cable conductor, is surrounded with the fibrage reinforced layer, is extruded with the neoprene restrictive coating;

Said power core comprises the aramid fiber strand that is in the center and is wrapped in the outer field tin annealed copper wire of said aramid fiber strand, outside said tin annealed copper wire, is extruded with the second third mixed rubber power line core insulation layer, is surrounded with the metallic fiber braid;

Said control core comprise be in the center be wrapped in the outer field control line core conductor of aramid fiber, outside said control line core conductor, be surrounded with the aramid fiber reinforced layer, be extruded with the second third mixed rubber control line core insulation layer.

Compared with present technology, the beneficial effect of the utility model is embodied in:

At first be to compare with common coal-winning machine on the control line core conductor structure to be very different; Adopt the aramid fiber of high strength, highly-flexible to be twisted into the central tensile member of the different strand of specification as conductor; The control core according to aramid fiber as the center strand in that layering is wrapped on the fiber strand to six types of anaerobics annealing tin annealed copper wire on the wrapping machine equipment; This mechanism improved greatly the control core flexibility and resistance to bend(ing) solved, solved that cable its inner ring core when bending receives very big pressure and its outer ring core receives the problem that very big pulling force control core ruptures easily simultaneously.The power core also is twisted into the conductor of power core together with aramid fiber that is twisted into thigh and the regular tin annealed copper wire that is twisted into thigh, improved the tensile property of conductor.

Insulation employing intensity is high, percentage elongation is big, little, the good springiness of permanent deformation, second third mixed rubber that electrical property is high; Second third mixed rubber is nonpolar speciality; Its chemical stability is good, and it and most chemicals do not react, and between the polar substances or immiscible or intermiscibility is minimum; Like alcohol, ketone, acid (acetate, formic acid), highly basic, oxidant, washing agent, phosphoric acid ester etc., this has improved the corrosion resistance of insulation greatly.

Adopt not interstitital texture during the cable stranding; This compares the space that has increased between core with common electric cable for coal mining machine and makes better sliding is arranged between core; And the braided fiber reinforced layer of braiding one deck density about 30～40% behind the stranding, common electric cable for coal mining machine does not have this structure.The fibrage reinforced layer combines an organic whole with the neoprene sheath under high temperature pressure; The tension and the impart tear of sheath material have been strengthened greatly; We know the fastness that has greatly strengthened building structure at the building trade reinforced concrete structure, and the effect of armored concrete makes the sheath material of cable more one go on foot raising again in original high impart tear in the building trade with regard to being similar in the combination of braid and restrictive coating.

Sheath adopts extraordinary oil resistant, high strength, high flame retardant neoprene mixed rubber, and this speciality CR adopts lead oxide as vulcanizing agent, because lead is inert metal, its radiation resistance is good, resistance to water is high, good corrosion resistance.Neoprene belongs to from reinforcement property rubber, and its physical and mechanical property is very good, adds and does not add liquid plasticizer in this neoprene, and its intensity and tear resistance are better, and the rubber of high strength and high tear resistance can be given higher pull resistance of cable and resistance to wear.And contain the chlorine element in the neoprene; In this rubber, add the efficient compound fire retardant; Can make the oxygen index of neoprene epoxy glue bring up to 42%; High oxygen index can further improve the anti-flammability of cable, so the cable processed of mixed rubber has the characteristic of high anti-tear, high strength, high flame retardant, oil resistant thus.

Description of drawings:

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

Label among the figure: 1 aramid fiber strand, 2 tin annealed copper wires, 3 power line core insulation layers, 4 metallic fiber braids, 5 control line core insulation layers, 6 control line core conductors, 7 aramid fiber reinforced layers, 8 fibrage reinforced layers, 9 restrictive coatings.

Below pass through embodiment, and combine accompanying drawing that the utility model is described further.

Embodiment:

Embodiment: referring to Fig. 1, the coal-winning machine rubber sleeve flexible cable of present embodiment, cable conductor are by a control core and three power cores are stranded constitutes, and outside cable conductor, are surrounded with fibrage reinforced layer 8, are extruded with neoprene restrictive coating 9; Said power core comprises the aramid fiber strand 1 that is in the center and is wrapped in the outer field tin annealed copper wire 2 of said aramid fiber strand, outside said tin annealed copper wire 2, is extruded with the second third mixed rubber power line core insulation layer 3, is surrounded with metallic fiber braid 4; Said control core comprise be in the center be wrapped in the outer field control line core conductor 6 of aramid fiber, outside said control line core conductor, be surrounded with aramid fiber reinforced layer 7, be extruded with the second third mixed rubber control line core insulation layer 5.

Claims

1. a coal-winning machine rubber sleeve flexible cable is characterized in that, cable conductor is by the control core and Duo Gen power core is stranded constitutes, and outside cable conductor, is surrounded with fibrage reinforced layer (8), is extruded with neoprene restrictive coating (9);

Said power core comprises the aramid fiber strand (1) that is in the center and is wrapped in the outer field tin annealed copper wire of said aramid fiber strand (2), outside said tin annealed copper wire (2), is extruded with the second third mixed rubber power line core insulation layer (3), is surrounded with metallic fiber braid (4);

Said control core comprise be in the center be wrapped in the outer field control line core conductor of aramid fiber (6), outside said control line core conductor, be surrounded with aramid fiber reinforced layer (7), be extruded with the second third mixed rubber control line core insulation layer (5).