CN211828185U

CN211828185U - Large-load-bearing flexible cable

Info

Publication number: CN211828185U
Application number: CN202020493517.XU
Authority: CN
Inventors: 金声涛; 郭光玉; 金勇�
Original assignee: Houde Jiutian Hubei Environmental Protection Technology Group Co ltd
Current assignee: Houde Jiutian Hubei Environmental Protection Technology Group Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-10-30
Anticipated expiration: 2030-04-07

Abstract

The utility model provides a large-bearing flexible cable, which belongs to the technical field of cables and comprises a cable core, wherein a wrapping layer is coated outside the cable core, and a thermoplastic polyurethane sheath layer is extruded outside the wrapping layer; the cable core includes the multiunit signal line, multiunit power cord and multiunit filler wire, the signal line includes signal line conductor and the signal line insulating layer of cladding on signal line conductor surface, the common cladding in the multiunit signal line outside has the signal line shielding layer of weaving by the tinned copper net, the power cord includes power cord conductor and the power cord insulating layer of cladding on power cord conductor surface, the common cladding in the multiunit power cord outside has rubber insulation layer, the filler wire is filled in signal line shielding layer, rubber insulation layer and around in the space between the covering, and the outer wall is equipped with spacing arch, be equipped with the spacing recess with spacing arch matched with around the covering inner wall, the technical problem that the cable bearing is poor has been solved, thereby make the cable bearing nature reinforcing, it is crooked resistant, the insulating properties is good, the interference killing feature is strong.

Description

Large-load-bearing flexible cable

Technical Field

The utility model relates to the technical field of cables, concretely relates to big bearing flexible cable.

Background

Cables are generally rope-like cables made by stranding several wires or groups of wires, each group of wires being insulated from one another and often twisted around a center, covered with a highly insulating covering throughout, and erected in the air or installed underground, underwater for telecommunication or power transmission. The flexible cable is the preferred cable of power transmission materials and signal transmission carriers in a drag chain motion system, and is widely applied to field operation of petroleum, hydropower, coal, metallurgy and engineering geology.

The traditional cable mostly adopts a steel wire rope and rubber cable structure, has certain limitation when used in occasions such as rapid movement and load bearing, has poor load bearing, and particularly cannot be widely used in occasions moving at high speed under severe conditions, such as working conditions of complex terrain, high mobility, frequent transceiving, severe climate, weak signals and the like in field construction.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide a big bearing flexible cable that exists among the prior art, solve the poor technical problem of traditional cable bearing who mentions in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a large-load-bearing flexible cable comprises a cable core, wherein a wrapping layer is coated on the outer side of the cable core, and a thermoplastic polyurethane sheath layer is extruded on the outer side of the wrapping layer; the cable core includes multiunit signal line, multiunit power cord and multiunit filler wire, and wherein, the signal line includes signal line conductor and the signal line insulating layer of cladding on signal line conductor surface, and the common cladding in the multiunit signal line outside has the signal line shielding layer of weaving by the tinned copper net, and the power cord includes power cord conductor and the power cord insulating layer of cladding on power cord conductor surface, and the common cladding in the multiunit power cord outside has rubber insulation layer, and the filler wire is made and is filled by aramid fiber in signal line shielding layer, rubber insulation layer and the space between the covering around, and the filler wire outer wall is equipped with spacing arch, is equipped with the spacing recess with spacing protruding matched with around the covering inner wall.

Compared with the prior art, the utility model discloses following beneficial effect has: the cable has the advantages that the wrapping layer and the thermoplastic polyurethane sheath layer extruded outside the wrapping layer enhance the bearing performance, the bending resistance and the insulating property; a plurality of groups of signal wires are arranged and are jointly coated with a signal shielding layer braided by a tinned copper net, so that the cable has strong anti-interference performance; the filling line is made by aramid fiber, except filling effect, still makes the high tensile of cable prevent turning round temperature resistant effect, this cable bearing, antitorque tensile, bending resistance, wear-resisting waterproof, have extensive commonality.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the above drawings: 1. a cable core; 11. a signal line; 111. a signal line conductor; 112. a signal line insulating layer; 12. a power line; 121. a power line conductor; 122. a power line insulating layer; 13. filling the line; 131. a limiting bulge; 2. wrapping a covering; 3. a thermoplastic polyurethane jacket layer; 4. a signal line shielding layer; 5. and a rubber insulating layer.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in figure 1, the embodiment of the utility model provides a big bearing flexible cable, including

cable core

1, 1 outside cladding of cable core has around covering 2, crowded package has thermoplastic polyurethane restrictive coating 3 around covering 2 outsides, adopts the polyurethane material to make the cable bearing nature better to resistant bending, insulating properties are good, the polyurethane cable can be applicable to high-speed removal occasion under-55 ℃ - +120 ℃ dry moist indoor and outdoor bad weather condition.

As shown in fig. 1, the cable core 1 includes a plurality of sets of signal lines 11, a plurality of sets of power lines 12, and a plurality of sets of filler lines 13, in this embodiment, 4 sets of signal lines 11, 2 sets of

power lines

12, and 2 sets of filler lines 13 are taken as an example, wherein the signal lines 11 include signal line conductors 111 and signal line insulating layers 112 covering the surfaces of the signal line conductors 111, signal line shielding layers 4 woven by tin-plated copper mesh are collectively covered outside the plurality of sets of signal lines 11, and the signal line shielding layers 4 cover outside the plurality of sets of signal lines 11, so that the cable shields and filters signal interference, and ensures minimum interference of transmission signals, and the signal lines 11 can be integrated into a whole to facilitate cable arrangement; the high-density tinned copper mesh braided shielding polyurethane cable can effectively resist external electronic interference, and has better effect by preferably selecting the braiding density of over 85 percent; the power line 12 comprises a power line conductor 121 and a power line insulating layer 122 coated on the surface of the power line conductor 121, the outer sides of a plurality of groups of power lines 12 are jointly coated with a rubber insulating layer 5, the rubber insulating layer 5 is coated on the outer side of the power line 12 to play a further insulating role and have flexibility, and the power line 12 can be integrated into a whole to facilitate wire arrangement, the filling line 13 is made of aramid fiber and is filled in gaps among the signal line shielding layer 4, the rubber insulating layer 5 and the winding layer 2, so that the filling line 4, the rubber insulating layer 5 and the winding layer 2 are mutually contacted and extruded with the signal line shielding layer 4, the rubber insulating layer 5 and the winding layer 2, the signal line shielding layer 4, the rubber insulating layer 5 and the winding layer 2 are prevented from loosening, the outer wall of the filling line 13 is further provided with a limiting bulge 131, a limiting groove matched with the limiting bulge 131 is arranged, making the cable further twist resistant. The filling line 13 is made by aramid fiber, except playing the filling effect and reducing the signal line shielding layer 4, the rubber insulating layer 5 and around the friction between the covering 2, still make the cable have high tensile and prevent turning round the effect of temperature resistant, this cable can extensively be used for oil, water and electricity, coal, metallurgy and engineering geology field work.

In some embodiments, for convenience in installation and use, the plurality of groups of signal wires 11 are twisted, and the plurality of groups of power wires 12 are also twisted, so that the tensile strength of the cable can be increased, and the external influence can be reduced; the wrapping layer 2 is made of flame-retardant non-woven fabrics, aramid fiber tapes and/or mica tapes, so that the cable is high in strength, good in elasticity and heat resistance, and the service life of the cable is prolonged; in order to enhance the conductivity and shielding of the cable, the signal line conductor 111 and/or the power line conductor 121 are made of tin-plated copper.

In some embodiments, the power line insulating layer 122 is made of thermoplastic elastic insulator, preferably polyurethane thermoplastic elastomer, and the rubber insulating layer 5 is made of flexible wear-resistant polyurethane, so that the cable cores are not loosened and pressed with each other, the insulating property is stronger, and the bending resistance and flexibility are strong.

The utility model discloses cable bearing nature reinforcing, the interference killing feature is strong, the tensile of high strength, resistant coiling and crooked, wear-resisting, corrosion-resistant, resistant high low temperature, waterproof characteristic, the same diameter bearing is more than traditional cable twice, and crooked diameter is more than half of traditional bearing cable to have extensive commonality, can also adapt to the work condition such as the field construction in that the topography is complicated, the mobility is big, receiving and dispatching is frequent, the weather is severe, the signal is weak.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a big bearing flexible cable, includes cable core (1), its characterized in that: a wrapping layer (2) is coated on the outer side of the cable core (1), and a thermoplastic polyurethane sheath layer (3) is extruded on the outer side of the wrapping layer (2); the cable core (1) comprises a plurality of groups of signal wires (11), a plurality of groups of power wires (12) and a plurality of groups of filling wires (13), wherein, the signal line (11) comprises a signal line conductor (111) and a signal line insulating layer (112) coated on the surface of the signal line conductor (111), the outer sides of a plurality of groups of signal lines (11) are jointly coated with a signal line shielding layer (4) woven by a tinned copper net, the power line (12) comprises a power line conductor (121) and a power line insulating layer (122) coated on the surface of the power line conductor (121), the outer sides of a plurality of groups of power lines (12) are jointly coated with a rubber insulating layer (5), a filling line (13) is made of aramid fibers and is filled in gaps among the signal line shielding layer (4), the rubber insulating layer (5) and the wrapping layer (2), and the outer wall of the filling line (13) is provided with a limiting bulge (131), and the inner wall of the wrapping layer (2) is provided with a limiting groove matched with the limiting bulge (131).

2. A heavy duty flexible cable as defined in claim 1, wherein: the multiple groups of signal wires (11) are arranged in a twisted mode.

3. A heavy duty flexible cable as claimed in claim 1 or 2, wherein: the power lines (12) are arranged in a twisted manner.

4. A heavy duty flexible cable as claimed in claim 1 or 2, wherein: the wrapping layer (2) is made of any one of flame-retardant non-woven fabrics, aramid fiber tapes or mica tapes.

5. A heavy duty flexible cable as claimed in claim 1 or 2, wherein: the signal line conductor (111) and/or the power line conductor (121) are made of tin-plated copper.

6. A heavy duty flexible cable as claimed in claim 1 or 2, wherein: the power line insulating layer (122) is made of a thermoplastic elastic insulator.

7. A heavy duty flexible cable as defined in claim 6, wherein: the thermoplastic elastic insulator is a polyurethane thermoplastic elastomer.

8. A heavy duty flexible cable as claimed in claim 1 or 2, wherein: the rubber insulating layer (5) is made of flexible wear-resistant polyurethane.