阅读说明：本技术 一种抗拉耐磨耐扭转型卷筒电缆 (Tensile, wear-resistant and torsion-resistant type reel cable ) 是由 陈楠 王丽 田鸣 浦天顺 叶鹏飞 于 2021-06-24 设计创作，主要内容包括：本发明公开了一种抗拉耐磨耐扭转型卷筒电缆,包括由外至内依次设置的外护套、中间抗拉耐扭单元、内层单元、总成缆以及填充在总成缆中间的填充块,所述内层单元包括沿总成缆长度方向由内至外依次包覆在总成缆外部的第一编织层和内护套。本发明中导体采用内外层同向设计,相比于常规的内外层反向结构,电缆弯曲性能更好,同时动力线芯外部、信号控制线芯外部以及第一编织层外部均匀涂有一层液体硅橡胶,增强了电缆整体的滑移效果以及移动能力,当电缆整体受到扭转或拉伸时,由于其内部具有滑移效果,因此总成缆在外接具有扭转力或拉伸力的情况下位置基本保持不变,使得总成缆整体不会因外力受到较大的影响,时电缆整体具有抗拉耐扭转的效果。(The invention discloses a tensile, wear-resistant and torsion-resistant type reel cable which comprises an outer sheath, a middle tensile and torsion-resistant unit, an inner layer unit, an assembly cable and a filling block filled in the middle of the assembly cable, wherein the outer sheath, the middle tensile and torsion-resistant unit, the inner layer unit, the assembly cable and the filling block are sequentially arranged from outside to inside, and the inner layer unit comprises a first woven layer and an inner sheath which are sequentially coated outside the assembly cable from inside to outside along the length direction of the assembly cable. The conductor adopts the design of the same direction of the inner layer and the outer layer, compared with the conventional reverse structure of the inner layer and the outer layer, the cable has better bending performance, meanwhile, the outer part of the power wire core, the outer part of the signal control wire core and the outer part of the first braided layer are uniformly coated with a layer of liquid silicon rubber, so that the integral sliding effect and the moving capability of the cable are enhanced, when the integral cable is twisted or stretched, the position of the integral cable is basically kept unchanged under the condition of external twisting force or stretching force due to the sliding effect in the inner part, the integral cable is not greatly influenced by external force, and the integral cable has the effects of tensile resistance and torsion resistance.)

1. The tensile wear-resistant torsion-resistant reel cable is characterized by comprising an outer sheath (1), a middle tensile torsion-resistant unit (2), an inner layer unit (3), an assembly cable (5) and a filling block (4) filled in the middle of the assembly cable (5), wherein the outer sheath (1), the middle tensile torsion-resistant unit (2), the inner layer unit (3), the assembly cable (5) and the filling block (4) are sequentially arranged from outside to inside, the assembly cable (5) comprises a power cable core (6) and a signal control cable core (7), and the inner layer unit (3) comprises a first braided layer (302) and an inner sheath (301), the first braided layer (302) is coated outside the assembly cable (5) along the length direction of the assembly cable (5);

the middle tensile torsion-resistant unit (2) comprises a positioning sleeve (201) which is coated outside an inner sheath (301) along the length direction of an assembly cable (5), a spiral limiting groove (202) which extends spirally along the length direction of the assembly cable (5) is uniformly formed in the outer side of the positioning sleeve (201), a winding pipe (203) is uniformly wound in the spiral limiting groove (202), a protrusion (204) which is abutted against the outer wall of the winding pipe (203) is integrally formed on the inner side wall of the spiral limiting groove (202), the groove depth of the spiral limiting groove (202) is not smaller than the radius of the outer ring of the winding pipe (203), the inner side wall of the spiral limiting groove (202) is of an arc-shaped structure, the middle tensile torsion-resistant unit (2) further comprises an interlayer (205) which is extruded outside the winding pipe (203) along the length direction of the assembly cable (5), and the outer side wall of the winding pipe (203) is uniformly coated with liquid silica gel, and the inside of the winding pipe (203) is filled with high-pressure dry nitrogen gas.

2. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 1, wherein: the power wire core (6) comprises four power wire core monomers (8), the four power wire core monomers (8) comprise a first conductor (802) and a first insulating layer (801) which is coated outside the first conductor (802) along the length direction of the first conductor (802), and the first conductor (802) is formed by co-directional bundle twisting and complex twisting of a plurality of sixth copper conductor monofilaments;

the signal control cable core (7) comprises seven core cables (9) and six core cables (10), the seven core cables (9) comprise seven first core monomers (901), the first core monomers (901) comprise core conductors and second insulating layers (12) coated on the surfaces of the core conductors, the six core cables (10) comprise six second core monomers (101), the second core monomers (101) comprise the core conductors and the second insulating layers (12) coated on the surfaces of the core conductors, core fillers (102) are filled between the second core monomers (101), and second braided layers (11) tightly attached to the outer walls of the seven core cables (9) or the six core cables (10) are annularly arranged outside the seven core cables (9) and the six core cables (10).

3. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 1, wherein: the outer part of the interlayer (205) is tightly attached to the inner part of the outer sheath (1), and the interlayer (205) and the outer sheath (1) are both made of chloroprene rubber.

4. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 2, wherein: the first insulating layer (801) is made of high-strength hard ethylene propylene rubber, and the second insulating layer (12) is made of fluoroplastic.

5. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 1, wherein: the positioning sleeve (201) and the protrusion (204) are both made of high-strength hard ethylene propylene rubber, and the winding pipe (203) is made of fluororubber.

6. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 2, wherein: the inner sheath (301) is made of chloroprene rubber, and the first woven layer (302) and the second woven layer (11) are woven by Kevlar fiber yarns.

7. The tensile, abrasion-resistant and torsion-resistant type reel cable according to claim 1, wherein: the filler core (102) and the filler block (4) are formed by extruding and wrapping XEVM-30 (ethylene propylene diene monomer) by taking a drawing line as a center through an extrusion molding process.

Technical Field

The invention relates to the technical field of cables, in particular to a tensile, wear-resistant and torsion-resistant drum cable.

Background

With the acceleration of the pace of modern industry, various motorized and intelligent mechanical devices are rapidly developing, such as: the scraper, the power plant bucket wheel machine, hoist, loader and other heavy haulage equipment etc. have become mechanical operation's a big sharp weapon, but because the particularity of this kind of equipment working property and service environment, will guarantee its "safety, high-efficient" operation, the urgent need for a tensile wear-resisting resistant type of turning round reel cable, this cable both has the electric power that special equipment operation needs, control signal transmission function, still will have the softness, anti dragging, resistant high low temperature and resistant performance such as crooked, make the cable can the operation in the adverse circumstances of difference to higher life has.

Disclosure of Invention

The invention aims to provide a tensile, wear-resistant and torsion-resistant reel cable to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the tensile, wear-resistant and torsion-resistant reel cable comprises an outer sheath, a middle tensile and torsion-resistant unit, an inner layer unit, an assembly cable and a filling block filled in the middle of the assembly cable, wherein the outer sheath, the middle tensile and torsion-resistant unit, the inner layer unit, the assembly cable and the filling block are sequentially arranged from outside to inside;

the middle tensile is able to bear or endure to turn round the unit and includes along assembly cable length direction cladding at the outside position sleeve of inner sheath, and evenly sets up the spiral spacing groove that extends along assembly cable length direction spiral in the outside of position sleeve, the inside even winding of spiral spacing groove has the winding pipe, and the inside wall integrated into one piece of spiral spacing groove has the arch of contradicting with the winding pipe outer wall, the groove depth of spiral spacing groove is not less than the radius of winding pipe outer lane, and the inside wall of spiral spacing groove is the arc structure, middle tensile is able to bear or endure to turn round the unit and still includes along assembly cable length direction crowded package at the outside intermediate layer of winding pipe, the even coating of lateral wall of winding pipe has liquid silica gel, and the inside packing of winding pipe has high-pressure dry nitrogen gas.

Preferably, the power wire core comprises four power wire core monomers, each of the four power wire core monomers comprises a first conductor and a first insulating layer which is coated outside the first conductor along the length direction of the first conductor, and the first conductor is formed by co-directional bundle twisting and complex twisting of a plurality of sixth copper conductor monofilaments;

the signal control sinle silk includes seven core cables and six core cables, seven core cables include seven first core monomers, and first core monomer includes the sinle silk conductor and coats the second insulating layer on sinle silk conductor surface, six core cables include six second core monomers, and the second core monomer includes the sinle silk conductor and coats the second insulating layer on sinle silk conductor surface, six it has the core of filling to fill between the second core monomer, the outside of seven core cables and six core cables is looped and is equipped with the second weaving layer of hugging closely in seven core cables or six core cable outer walls.

Preferably, the outer part of the interlayer is tightly attached to the inner part of the outer sheath, and the interlayer and the outer sheath are both made of chloroprene rubber.

Preferably, the first insulating layer is made of high-strength hard ethylene propylene rubber, and the second insulating layer is made of fluoroplastic.

Preferably, the position sleeve and the raised material are both high-strength hard ethylene propylene rubber, the winding pipe is made of fluororubber, and high-pressure dry nitrogen is filled in the winding pipe.

Preferably, the inner sheath is made of chloroprene rubber, and the first woven layer and the second woven layer are woven by Kevlar fiber yarns.

Preferably, the core and the filling block are extruded from XEVM-30 (ethylene propylene diene monomer) by an extrusion process centered on the draw line.

Compared with the prior art, the invention has the beneficial effects that:

(1) the conductors used in the invention adopt the design of the same direction of the inner layer and the outer layer, compared with the conventional reverse structure of the inner layer and the outer layer, the bending performance of the cable is better, meanwhile, the second woven layer outside the signal control cable core, the first woven layer outside the inner sheath and the filling block in the middle of the assembly cable all adopt Kevlar fiber materials so as to improve the integral tensile performance of the cable, in addition, the liquid silicon rubber layers are uniformly coated outside the power cable core, outside the signal control cable core and outside the first woven layer, so that the integral sliding effect and the moving capability of the cable are enhanced, when the integral cable is twisted, the inner part of the cable has the sliding effect, so that the position of the assembly cable is basically kept unchanged under the condition that the external connection has the twisting force, the integral cable is not greatly influenced by the external force, and the service life is prolonged;

(2) the high-pressure dry nitrogen is filled in the winding pipe, when the outer sheath is damaged, the damaged part of the outer sheath can be effectively blocked by the winding pipe under the action of the high-pressure gas in the winding pipe, so that gas or other sundries are prevented from entering the cable, meanwhile, the high-pressure gas in the original winding pipe has partial resistance when the cable is integrally twisted due to the fact that the winding pipe is wound in the spiral limiting groove and the winding pipe is contacted with the bulges in the spiral limiting groove, the gas pressure in the winding pipe can be increased again under the action of the bulges, so that the resistance is increased, the assembly cable in the cable is effectively protected, and when the cable is integrally stretched, the winding pipe can be rolled compactly when the cable is stretched due to the fact that the winding pipe is spirally wound in the spiral limiting groove, at this moment under the effect of a plurality of archs and spiral spacing groove, the inside pressure of winding pipe increases equally, then can produce more resistance equally and prevent that the cable is whole to receive tensile, the stretch-proofing effect is better, in addition, the same coating of winding outside of tubes portion has liquid silica gel, the effect of sliding has, pulling force or torsional force received when the whole outside of cable are less, winding pipe self can not receive the influence, only when the external power of cable is enough big, the winding pipe just can produce corresponding resistance and carry out stretch-proofing and resistant torsion, and the external power of cable this moment is owing to overcome the gliding effect that liquid silica gel brought, the external real power that acts on inside the cable will weaken a lot, make external force be effectively to having carried out the decomposition, the life of total finished cable has been prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along the line A-A in FIG. 1;

fig. 3 is an enlarged view of the present invention B.

In the figure: 1. an outer sheath; 2. a middle tensile and torsion-resistant unit; 201. a positioning sleeve; 202. a spiral limit groove; 203. winding the tube; 204. a protrusion; 205. an interlayer; 3. an inner layer unit; 301. an inner sheath; 302. a first woven layer; 4. filling blocks; 5. assembling a cable; 6. a power wire core; 7. a signal control wire core; 8. a power wire core monomer; 801. a first insulating layer; 802. a first conductor; 9. a seven-core cable; 901. a first core unit; 10. a six-core cable; 101. a second core unit; 102. filling a core; 11. a second woven layer; 12. a second insulating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown: a tensile, wear-resistant and torsion-resistant reel cable comprises an outer sheath 1, a middle tensile and torsion-resistant unit 2, an inner layer unit 3, an assembly cable 5 and a filling block 4 filled in the middle of the assembly cable 5, wherein the outer sheath 1, the middle tensile and torsion-resistant unit, the inner layer unit 3, the assembly cable 5 and the filling block 4 are sequentially arranged from outside to inside, the assembly cable 5 comprises a power cable core 6 and a signal control cable core 7, and the inner layer unit 3 comprises a first woven layer 302 and an inner sheath 301 which are sequentially coated outside the assembly cable 5 from inside to outside along the length direction of the assembly cable 5;

middle tensile is able to bear or endure to turn round unit 2 includes that it is at the outside position sleeve 201 of inner sheath 301 to coat along 5 length direction of assembly cable, and evenly set up the spiral spacing groove 202 that extends along the 5 length direction spiral of assembly cable in the outside of position sleeve 201, the inside even winding of spiral spacing groove 202 has winding pipe 203, and the inside wall integrated into one piece of spiral spacing groove 202 has the arch 204 of contradicting with winding pipe 203 outer wall, the groove depth of spiral spacing groove 202 is not less than the radius of winding pipe 203 outer lane, and the inside wall of spiral spacing groove 202 is the arc structure, middle tensile is able to bear or endure to turn round unit 2 still includes along the 5 length direction crowded interbedded layers 205 of packing in winding pipe 203 outside of assembly cable, the even coating of lateral wall of winding pipe 203 has liquid silica gel, and the intussuseption of winding pipe 203 is filled with high-pressure dry nitrogen gas.

Please refer to fig. 1, the power cable core 6 includes four power cable core monomers 8, each of the four power cable core monomers 8 includes a first conductor 802 and a first insulating layer 801 covering the first conductor 802 along the length direction of the first conductor 802, and the first conductor 802 is formed by co-directional twisting and multiple twisting of a plurality of sixth copper conductor monofilaments;

the signal control sinle silk 7 includes seven core cables 9 and six core cables 10, seven core cables 9 include seven first core monomers 901, and first core monomer 901 includes the sinle conductor and coats the second insulating layer 12 on sinle conductor surface, six core cables 10 include six second core monomers 101, and second core monomer 101 includes the sinle conductor and coats the second insulating layer 12 on sinle conductor surface, it has filled core 102 to fill between six second core monomers 101, seven core cables 9 and six core cables 10 outside are all equipped with the second weaving layer 11 of hugging closely in seven core cables 9 or six core cables 10 outer walls.

Please refer to fig. 3, the outer portion of the interlayer 205 is tightly attached to the inner portion of the outer sheath 1, and the interlayer 205 and the outer sheath 1 are made of neoprene.

Referring to fig. 1, the first insulating layer 801 is made of high-strength hard ethylene propylene rubber, which has excellent weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, color stability, electrical properties, oil filling property and normal temperature fluidity, and the second insulating layer 12 is made of fluoroplastic, which has excellent electrical insulating properties, high heat resistance, outstanding oil resistance, solvent resistance and wear resistance, and good moisture resistance and low temperature resistance.

Please refer to fig. 3, the positioning sleeve 201 and the protrusion 204 are made of high strength hard ethylene propylene rubber, the winding tube 203 is made of fluororubber, and the winding tube 203 is filled with high pressure dry nitrogen, wherein the fluororubber is type 23 fluororubber, which has excellent physical and mechanical properties, generally has a combined strength of 15.0-25 MPa, an elongation of 200-600%, a tear strength of 2-7 MPa, and the type 23 fluororubber has good electrical properties and lower moisture absorption than other elastomers, and can be used as a good electrical insulating material to effectively avoid leakage of high pressure dry gas inside the winding tube 203, and meanwhile, a layer of liquid silicone rubber is coated outside the winding tube 203 to enhance the overall sliding effect and the moving capability of the cable.

Please refer to fig. 1, the inner sheath 301 is made of neoprene, the first woven layer 302 and the second woven layer 11 are woven by kevlar fiber yarns, and a layer of liquid silicone rubber is coated outside the first woven layer 302 to enhance the overall sliding effect and the moving capability of the cable.

Please refer to fig. 1, the filler core 102 and the filler block 4 are formed by extruding XEVM-30 (ethylene propylene diene monomer) through an extrusion process with a drawing wire as the center, wherein the filler core 102 is formed by extruding the ethylene propylene diene monomer on the surface of a cotton wire in an extruder in an insulation manner to form a circular filler strip with the center of the cotton wire, and then the circular filler strip is arranged at the center and is cabled with the six-core cable 10, and the filler block 4 is formed by extruding the ethylene propylene diene monomer on the surface of a kevlar fiber with the diameter of phi 1.0mm in an insulation manner to form a special-shaped filler strip with the center of the kevlar fiber, and then the special-shaped filler strip is arranged at the center of the overall cabled cable 5.

The working principle is as follows: before use, the cable is put to a designated position for use, when the outer sheath 1 is damaged, the damaged part of the outer sheath 1 can be effectively sealed by the winding pipe 203 due to the effect of high-pressure gas in the winding pipe 203, gas or other sundries are prevented from entering the cable, meanwhile, as the winding pipe 203 is wound in the spiral limiting groove 202 and the winding pipe 203 is contacted with the bulges 204 in the spiral limiting groove 202, when the cable is twisted, the high-pressure gas in the winding pipe 203 originally has partial resistance, the gas pressure in the winding pipe 203 can be increased again under the effect of the bulges 204, the resistance is increased, the assembly cable 5 in the cable is effectively protected, and when the cable is stretched, the winding pipe 203 is wound compactly when the cable is stretched due to the spiral winding in the spiral limiting groove 202, at this moment under the effect of a plurality of archs 204 and spiral spacing groove 202, the inside pressure of winding pipe 203 increases equally, then can produce more resistance equally and prevent that the cable is whole to receive tensile, the stretch-proofing effect is better, in addition, the outside same coating of winding pipe 203 has liquid silica gel, the effect of sliding has, pulling force or torsional force when the whole outside receipt of cable are less, winding pipe 203 self can not receive the influence, only when the external power of cable is enough big, winding pipe 203 just can produce corresponding resistance and carry out stretch-proofing and resistant torsion, and the external power of cable this moment is owing to overcome the effect of sliding that liquid silica gel brought, the external real power that acts on the cable inside will weaken a lot, make external force by to having carried out the decomposition effectively, the life of total cable 5 has been prolonged.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.