CN210777928U - High-strength waterproof rubber sleeve cable - Google Patents
High-strength waterproof rubber sleeve cable Download PDFInfo
- Publication number
- CN210777928U CN210777928U CN201922072304.XU CN201922072304U CN210777928U CN 210777928 U CN210777928 U CN 210777928U CN 201922072304 U CN201922072304 U CN 201922072304U CN 210777928 U CN210777928 U CN 210777928U
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- China
- Prior art keywords
- conductor
- waterproof rubber
- cable
- twisting
- water
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- 239000004020 conductor Substances 0.000 claims abstract description 57
- 238000002955 isolation Methods 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005491 wire drawing Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
- Ropes Or Cables (AREA)
Abstract
The utility model provides a waterproof rubber sleeve cable of high strength. The high-strength waterproof rubber sleeve cable specifically comprises a conductor arranged in the center of the cable, and an isolation belt, an insulating layer and an outer sheath which are sequentially coated outside the conductor, wherein the conductor is formed by twisting a plurality of strands in the same direction, and each strand is formed by twisting a reinforced water-blocking yarn and a plurality of conductive monofilament bundles which are arranged in the center of the strand; the isolation belt is wound outside the conductor in a wrapping or longitudinal wrapping mode, the insulating layer is formed by extruding the isolation belt wound on the conductor, and the outer sheath is extruded outside the insulating layer. The utility model discloses the effectual bending resistance that improves the conductor, tensile strength has strengthened the bending resistance and the water-blocking nature of wire, and is less to conductor direct current resistance, structure size, weight influence.
Description
Technical Field
The utility model belongs to the technical field of the wire and cable and specifically relates to indicate a waterproof rubber sleeve cable of high strength.
Background
With the rapid development of modern economy in China, waterproof rubber sleeve cables are more and more required and widely used in special occasions, mainly in ports, docks, rivers, lakes, oceans and other places. The waterproof rubber sleeve cable used in the place has mechanical stress effects such as frequent reciprocating movement, continuous bending, torsion, tensile strength and the like in the processes of soaking for a long time and bearing high water pressure, so that the conductor for the waterproof rubber sleeve cable used in the place needs to meet the requirements.
In order to meet the requirements of frequent reciprocating movement, continuous bending and torsion, the conductors adopted by the cable are 5-class and six-class copper conductors specified in GB/T3956-2008. In order to meet the requirement of tensile strength, metal wires are usually added into copper conductors, and at present, the metal wires are mainly steel wires.
The prior art has the following problems and disadvantages:
in the prior art, steel wires and the like are added into a conductor, so that the tensile property of the conductor is improved, but the following problems are easy to occur in use:
(1) under the working condition of frequent winding and unwinding, the steel wire is easy to break, the broken steel wire no longer has a tensile action, the cable insulation and the protective layer are easy to damage, the service life of the cable is shortened if the cable is light, and the cable is scrapped if the cable is heavy;
(2) the flexibility of the high-strength steel wire is inferior to that of the copper wire, and the bending performance of the whole cable is influenced by the high-strength steel wire;
(3) the conductor formed by twisting the high-strength steel wire and the copper monofilament has larger direct current resistance than the copper conductor, and the cable has smaller current-carrying capacity than the conductor formed by twisting the copper monofilament. In the use process of the cable, the conductor has high direct current resistance, so that the working temperature of the conductor of the cable is high, the energy consumption is high, the cable aging is easy to accelerate, and the service life of the cable is shortened.
(4) Radial water resistance is realized only by means of conductor insulation and water repellency or non-water absorbability of a sheath material. The cable conductor is damaged by insulation and a protective layer, and water enters the cable due to the siphonage phenomenon, so that the service life of the cable is directly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the prior art defect, provide an anti bending property, tensile strength are high, and density is little, the waterproof rubber sleeve cable of soft high strength.
In order to solve the technical problem, the utility model provides a high strength waterproof rubber sleeve cable, specifically include the conductor that sets up at the cable center and the median, insulating layer, oversheath of cladding in proper order outside the conductor, the conductor is formed by adopting the syntropy transposition by many strand yarns, and every strand yarn is stranded by the strenghthened type that sets up at the strand yarn center and many conductive monofilament bundles; the isolation belt is wound outside the conductor in a wrapping or longitudinal wrapping mode, the insulating layer is formed by extruding the isolation belt wound on the conductor, and the outer sheath is extruded outside the insulating layer.
The utility model discloses better technical scheme: the reinforced water-blocking yarn of each strand is stranded with the plurality of conductive monofilaments in the same direction, and the stranding direction of the reinforced water-blocking yarn is the same as that of the plurality of strands of the conductor.
The utility model discloses better technical scheme: the bundle twist pitch diameter ratio of each strand is less than 12; the pitch diameter ratio of the complex twisting of the plurality of strands is less than 10.
The utility model discloses further technical scheme: the conductive monofilament selects the 5 th and 6 th soft copper conductors in GB/T3956-2008.
The utility model discloses better technical scheme: the reinforced water-blocking yarn is reinforced aramid water-blocking yarn.
The beneficial effects of the utility model reside in that:
1. the utility model selects a stranded fine copper wire stranded structure for conductor structure selection, selects the 5 th and 6 th soft copper conductors in GB/T3956-2008 for the maximum monofilament diameter, and adopts an advanced multi-head wire drawing machine to ensure the wire diameter deviation range to be controlled within +/-0.01 mm;
2. the reinforced water-blocking yarn is added at the center of each strand when the strands are bunched and twisted, and the copper monofilament and the reinforced water-blocking yarn are tightly twisted together, so that the bending resistance and the tensile strength of single strands can be effectively improved; the stranded wires are stranded together in the same-direction stranding mode, so that the bending resistance and the tensile strength of the conductor can be effectively improved;
3. the utility model is realized by reducing the pitch and the same direction of the twisting direction in the twisting mode of the conductor, thereby enhancing the bending resistance and the water resistance of the conductor;
4. the utility model discloses a strenghthened type yarn that blocks water adopts strenghthened type aramid fiber yarn that blocks water, and its tensile strength reaches 2 ~ 3 times of steel wire, has high strength, and the expansion ratio is high, meets water quick expansion, locks moisture rapidly to realize that the cable vertically blocks water, the strenghthened type yarn density that blocks water is little, soft moreover, and is less to conductor direct current resistance, structure size, weight influence.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of a strand in a conductor according to the present invention;
fig. 3 is a schematic structural diagram of a conductor according to the present invention;
fig. 4 is a cross-sectional view of the conductor of the present invention.
In the figure: 1-reinforced water-blocking yarn, 2-conductive monofilament, 3-folded yarn, 4-conductor, 5-isolation belt, 6-insulating layer and 7-outer sheath.
Detailed Description
The present invention will be further explained with reference to the drawings and examples. Fig. 1 to 4 are drawings of the embodiment, which are drawn in a simplified manner and are only used for clearly and concisely illustrating the purpose of the embodiment of the present invention. The following detailed description of the embodiments of the present invention is presented in the drawings and is not intended to limit the scope of the invention as claimed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The embodiment provides a high-strength waterproof rubber sleeve cable, as shown in fig. 1, which comprises a conductor 4 arranged in the center of the cable, and an isolation belt 5, an insulating layer 6 and an outer sheath 7 which are sequentially coated outside the conductor 4, as shown in fig. 2 and 3, wherein the conductor 4 is formed by twisting a plurality of strands 3 in the same direction, each strand 3 is formed by bundling and twisting a reinforced water-blocking yarn 1 arranged in the center of the strand and a plurality of conductive monofilaments 2 in the same direction, and the reinforced water-blocking yarn 1 is reinforced aramid water-blocking yarn; the maximum monofilament diameter of the conductive monofilament 2 is selected from 5 th and 6 th soft copper conductors in GB/T3956-2008, an advanced multi-head wire drawing machine is adopted, the wire diameter deviation range is controlled within +/-0.01 mm, as shown in figure 4, the strand twisting direction of the reinforced water-blocking yarn 1 and the conductive monofilaments 2 in each strand 3 is the same as the twisting direction of the strands 3 of the conductor 4, the strand twisting pitch-diameter ratio of each strand 3 is controlled within 12, and the pitch-diameter ratio of the multiple twisting of the strands 3 is controlled within 10. The isolation belt 5 is wound outside the conductor 4 in a wrapping or longitudinal wrapping mode, the insulating layer 6 is formed by extruding the isolation belt 5 wound on the conductor 4, and the outer sheath 7 is extruded outside the insulating layer 6.
The utility model discloses a for realizing that special type cable satisfies resistant crooked high tensile requirement, at first in the structural selection of conductor, choose the thin copper wire strand structure of stranded for use, the biggest copper monofilament diameter selects 5 th in GB/T3956-2008, 6 th kind of soft copper conductor, and adopt advanced bull wire drawing machine, guarantee that the silk footpath deviation scope is controlled at 0.01mm, then, add strenghthened type yarn that blocks water at every strand center when strand bundle hank, the copper monofilament is in the same place with the closely hank of strenghthened type yarn that blocks water, the bending resistance of effectively improving the single strand, tensile strength, and according to the regular structure with every strand hank together, can effectively improve the bending resistance of conductor, tensile strength; the reinforced water-blocking yarn has the characteristics of high strength, small density, softness and high expansion rate, has small influence on the weight of the conductor, is high in water-meeting expansion rate, longitudinally blocks water for the conductor, longitudinally blocks water for the cable, and finally realizes the unidirectional realization through pitch reduction and twisting direction in the twisting mode of the conductor, and the reinforced water-blocking yarn has the following specific steps: the method adopts a same-direction twisting mode, and simultaneously reduces the bundle twisting pitch, wherein the bundle twisting pitch is controlled within 12 times; during compound twisting, each layer adopts the mode of the same direction as the bundle twisting, and the twisting pitch-diameter ratio is controlled within 10 times.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a waterproof rubber sleeve cable of high strength which characterized in that: the cable comprises a conductor (4) arranged in the center of the cable, and an isolation belt (5), an insulating layer (6) and an outer sheath (7) which are sequentially coated outside the conductor (4), wherein the conductor (4) is formed by twisting a plurality of strands (3) in the same direction, and each strand (3) is formed by bundling and twisting a reinforced water-blocking yarn (1) and a plurality of conductive monofilaments (2) which are arranged in the center of the strand; the isolation belt (5) is wound outside the conductor (4) in a wrapping or longitudinal wrapping mode, the insulating layer (6) is formed by extruding the isolation belt (5) wound on the conductor (4), and the outer sheath (7) is extruded outside the insulating layer (6).
2. The high-strength waterproof rubber sheathed cable according to claim 1, characterized in that: the reinforced water-blocking yarn (1) of each folded yarn (3) is stranded with the conductive monofilaments (2) in the same direction, and the stranding direction of the reinforced water-blocking yarn is the same as that of the folded yarns (3) of the conductor (4).
3. The high-strength waterproof rubber sheathed cable according to claim 1, characterized in that: the bundle twist pitch diameter ratio of each folded yarn (3) is less than 12; the pitch diameter ratio of complex twisting of the plurality of strands (3) is less than 10.
4. The high-strength waterproof rubber sheathed cable according to claim 1, characterized in that: the conductive monofilament (2) is a 5 th and a 6 th soft copper conductor.
5. The high-strength waterproof rubber sheathed cable according to claim 1, characterized in that: the reinforced water-blocking yarn (1) is reinforced aramid water-blocking yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922072304.XU CN210777928U (en) | 2019-11-27 | 2019-11-27 | High-strength waterproof rubber sleeve cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922072304.XU CN210777928U (en) | 2019-11-27 | 2019-11-27 | High-strength waterproof rubber sleeve cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210777928U true CN210777928U (en) | 2020-06-16 |
Family
ID=71040416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922072304.XU Active CN210777928U (en) | 2019-11-27 | 2019-11-27 | High-strength waterproof rubber sleeve cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210777928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119028663A (en) * | 2024-08-02 | 2024-11-26 | 广东松田科技股份有限公司 | A method for controlling the softness and hardness of a silk-covered wire |
-
2019
- 2019-11-27 CN CN201922072304.XU patent/CN210777928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119028663A (en) * | 2024-08-02 | 2024-11-26 | 广东松田科技股份有限公司 | A method for controlling the softness and hardness of a silk-covered wire |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |