CN201166996Y - Twist resistant rubber cover flexible cable for wind power generation - Google Patents
Twist resistant rubber cover flexible cable for wind power generation Download PDFInfo
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- CN201166996Y CN201166996Y CNU2007203069042U CN200720306904U CN201166996Y CN 201166996 Y CN201166996 Y CN 201166996Y CN U2007203069042 U CNU2007203069042 U CN U2007203069042U CN 200720306904 U CN200720306904 U CN 200720306904U CN 201166996 Y CN201166996 Y CN 201166996Y
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Abstract
The utility model relates to a torsion-resistant rubber sleeve flexible cable, in particular to a torsion-resistant rubber sleeve flexible cable used for wind electric power generation; the pitch diameter ratio of a bunched strand of a conducting body is 15 to 18 times, the laying directions on the multiple stranded inner and outer layers of the strand are identical, the pitch diameter ratios of the inter and other layers are identical, the multiple stranded pitch diameter ratio is 8 to 9 times, the outside of a cable core is directly extruded and packaged with a protective sheath, so that the cable core is insulated and is combined into a whole with the protecting sheath. The structure ensures that torsion-resistance capacity of the cable is greatly increased. The one-time positive and negative torsion test is three weeks, the surface of the cable with 3600 times is free from crack, and 2.5 UO withstand voltage can not break down for 5 minutes; low-temperature-resistant rubber is provided and used, the surface of the cable with 500 times is free from crack at the temperature of minus 40 DEG C, 2.5 UO withstand voltage can not break down for 5 minutes, and the external diameter of a cable of the identical specification can be reduced by about 4 percent.
Description
Technical field
Utility model relates to the anti-rubber sleeve flexible cable of turning round of a kind of anti-rubber sleeve flexible cable of turning round, particularly used for wind power generation.
Background technology
In the wind generator set design, for avoiding the unfavorable of the frequent pay-off of great turbine, turbine is gone off course with the wind, reversed for three weeks continuously, just revolution resets again.The cable that requires like this to be connected with turbine will have good resistance to torsion, particularly at low temperature for example-40 in ℃ environment, the mechanical property of materials changes and still will have good warping property (low temperature distortion performance does not down descend), therefore the cable warp resistance proposition utmost point is strict with.
Existing rubber sleeve flexible cable removes conductor and adopts stranded flexible conductor, and for example cable is restrainted into earlier strand with thin copper conductor of 5,6 classes or tin-coated copper conductor, is twisted into the composition stranded conductor more again.Its strand lay ratio is set in 25～30 times usually, to twist direction again opposite, makes some strands be twisted into stranded conductor again by strand strand, and wherein the ectonexine strand is on the contrary, and the internal layer lay ratio is big, and 14～18 times, outer lay ratio is little, 12～16 times.This structure stranded conductor, not only external diameter is relatively large, and the bending property of gained stranded conductor is difficult to still satisfy that the used for wind power generation rubber sleeve flexible cable is anti-turns round requirement, and the frequent bending in the use and reversing easily causes conductor to fracture too early, shortens Acceptable life.
Secondly existing multi-thread core rubber sleeve flexible cable, 12～14 times of the stranded stranding lay ratios of edge core that thoroughly do away with more, and, extruding the rubber sheath sheath more then in a tubular form at stranded insulated wire cores gap employing fiber or rubber bar filling rounding, cable core and sheath are independent, not tight separately.Single-core cable has the insulation of employing and co-extrusion of sheath to finish, and also has the insulation of employing and sheath to extrude separately and finishes.Cable core and sheath are independent separately, and sheath and cable core can twist separately when cable reversed, and also caused sheath more fragile, shorten Acceptable life.
Because the prior art rubber sleeve flexible cable, exist conductor structure still harder relatively, the anti-property turned round is not enough, and cable core and sheath defective independently separately, thereby cable anti-turned round performance and can not satisfy still that the used for wind power generation rubber sleeve flexible cable is anti-turns round requirement.
The disclosed digital audio formula of Chinese patent CN2929919 track circuit connects uses cable, adopts each number of plies strand unit direction of lay consistent with the direction of lay that this twists layer by layer; The lay ratio that the strand unit is stranded and layer strand is stranded is a 4-20 times of structure, the opposite twisted wire structure with this direction of lay that twists layer by layer of several strand unit direction of lays of outermost layer.Though adopting, it shortens the conductor twisting pitch, and stranded in the same way twisted wire mode, increased the bending property of cable to a certain extent, but this lay configuration, only be the stress when having eliminated the forming residual stress of conductor in strand system process and closing drum, make the distortion after the brake forming little.Actual in this twisted wire structural test, can not satisfy still that the used for wind power generation cable is anti-turns round requirement.
The disclosed digital data-logger of Chinese patent CN200959251 is with the shielding control cable, and cable core is stranded in the same way in pairs be at least two groups, again each is organized cable core reverse be twisted into a branch of.Its solution be that the signal transmission is stable, can the faint analog and digital signal of reliable delivery, it is actual that to turn round performance improvement little to anti-, this structure can not satisfy that the used for wind power generation cable is anti-turns round requirement equally.
The utility model content
The utility model purpose is to overcome the deficiency of above-mentioned prior art, provides the strong used for wind power generation of a kind of anti-twisting property the anti-rubber sleeve flexible cable of turning round.
The utility model purpose realizes that main the improvement is at the prior art defective, and taking to dwindle the strand lay ratio is 15～18 times; Strand twists again and adopts the ectonexine strand to identical, and ectonexine lay ratio unanimity, and makes lay ratio be controlled at 8～9 times; Multicore cable is controlled at 8-10 doubly with the stranded stranding lay ratio of insulated wire cores; And the core gap do not fill and directly extrudes sheath, three/four technical measures, thus overcome the deficiencies in the prior art, realize the utility model purpose.Specifically, the anti-rubber sleeve flexible cable of turning round of utility model used for wind power generation, comprise that thin copper wire bundle strand twists flexible conductor again, rubber-covered and rubber outer protection cover, wherein the strand strand is to opposite to direction with multiple strand strand, the bundle strand lay ratio that it is characterized in that conductor is 15～18 times, strand twists the ectonexine strand again to identical, and the ectonexine lay ratio is identical, and twisting lay ratio again is 8～9 times, cable core directly extrudes sheath outward, and the cable core insulation is combined into one with sheath.
The said cable core of utility model can be single core as required, also can be multicore.
Multicore cable three cores for example wherein, the stranded stranding lay ratio of insulated wire cores is controlled at 8-10 doubly, and does not fill in cable core gap, stranded back, directly extrudes oversheath, and the cable core insulation is combined into one with sheath.
The anti-rubber sleeve flexible cable of turning round of utility model used for wind power generation dwindles the strand lay ratio owing to adopt; Strand twists again and adopts ectonexine stranded in the same way, and ectonexine lay ratio unanimity, and lay ratio is controlled at 8～9 times; Multicore cable is controlled at 8-10 doubly with the stranded lay ratio of insulated wire cores; And the core gap do not fill and directly extrudes rubber sheath, makes cable core and sheath be technical measures such as one, thereby the anti-twisting property of cable is strengthened greatly.Torsion test, positive and negative three weeks, 3600 times cable surface did not have cracking for once, not puncture in 5 minutes that 2.5U0 is withstand voltage; The adapted cold resistant rubber, at-40 ℃, 500 times cable surface does not have cracking, not puncture in 5 minutes that 2.5U0 is withstand voltage.Utility model strand pitch gets finer makes strand clearly demarcated, more helps crooked and multiple strand; Twist the ectonexine strand again to identical (stranded in the same way), and ectonexine lay ratio unanimity, and dwindle lay ratio, and gained multiple stranded conductor external diameter little (the same specification external diameter reduces about 4%), flexibility is good, and conductor is flexible, and alternating bending is frangibility not; Little lay ratio stranding will need the torsional capacity pretwist in cable core, progressively discharge when cable is subjected to reversing, thereby improve the anti-property turned round; Cable core directly extrudes rubber sheath, particularly multicore cable outward, and sheath material is clamp-oned the cable core hole, and cable core and sheath are combined into one, and cable cover(ing) can not become flexible when reversing, and helps guaranteeing that sheath is intact; In addition, cable core directly extrudes sheath outward, and the cable surface rounding has also further dwindled the outside diameter of cable, also helps improving the anti-twisting property of cable.
Below in conjunction with two embodiments, further specify utility model.
Description of drawings
Fig. 1 turns round rubber for the utility model used for wind power generation is anti-and overlaps single core flexible cable cross section structure schematic diagram.
Fig. 2 turns round rubber for the utility model used for wind power generation is anti-and overlaps three core flexible cable cross section structure schematic diagrames.
Fig. 3 is a utility model stranded conductor structural representation.
Embodiment
Embodiment 1: referring to Fig. 1,3, the utility model used for wind power generation is anti-to be turned round rubber and overlaps single core flexible cable, comprises by stranded conductor, tightens twining package tape 4 and rubber insulation 5 is formed cable core, directly extrudes rubber sheath 6 outward.The soft thin copper wire 1 of used for stranded conductor wherein, adopt cable with 5 class copper conductors or tin-coated copper conductor, earlier it is restrainted into strand 2 by strand for 16 times to dextrad, lay ratio, again by strand again strand to left-hand (multiple strand strand is to opposite to direction with the strand strand), and ectonexine twists in the same way again, and ectonexine lay ratio (L/D) is 8 times and is twisted into conductor 3 again, is tightened by twining package tape 4 outward, extrude rubber insulation 5, extrude rubber sheath 6 simultaneously.
Embodiment 2: referring to Fig. 2, as embodiment 1, the utility model used for wind power generation is anti-to be turned round rubber and overlaps three core flexible cables, thoroughly does away with the edge cores by three and is twisted into cable core, and the stranding lay ratio is 8 times, the directly crowded rubber sheath 6 in stranded back.
In addition, rubber can also adopt other functional rubbers, as oil resistant rubber, flame retardant rubber, cold gum, or possesses oil resistant, fire-retardant, low-temperature characteristics rubber simultaneously; The construction of cable can also be a band control core cable, to satisfy the requirement of various occasion used for wind power generation cable.
Claims (3)
1, the anti-rubber sleeve flexible cable of turning round of used for wind power generation, comprise that thin copper wire bundle strand twists flexible conductor again, rubber-covered and rubber outer protection cover, wherein the strand strand is characterized in that to opposite to direction with multiple strand strand the bundle strand lay ratio of conductor is 15～18 times, and strand twists the ectonexine strand again to identical, the ectonexine lay ratio is identical, twisting lay ratio again is 8～9 times, and cable core directly extrudes sheath outward, and the cable core insulation is combined into one with sheath.
2,, it is characterized in that stranded conductor is outer tight by band institute, extrudes sheath again according to the anti-rubber sleeve flexible cable of turning round of the described used for wind power generation of claim 1.
3,, it is characterized in that the stranded stranding lay ratio of multicore cable insulated wire cores is 8-10 times according to claim 1 or the anti-rubber sleeve flexible cable of turning round of 2 described used for wind power generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203069042U CN201166996Y (en) | 2007-11-11 | 2007-11-11 | Twist resistant rubber cover flexible cable for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203069042U CN201166996Y (en) | 2007-11-11 | 2007-11-11 | Twist resistant rubber cover flexible cable for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166996Y true CN201166996Y (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203069042U Expired - Fee Related CN201166996Y (en) | 2007-11-11 | 2007-11-11 | Twist resistant rubber cover flexible cable for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166996Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082000A (en) * | 2010-12-23 | 2011-06-01 | 衡阳恒飞电缆有限责任公司 | Rubber-sheathed flexible cable with movement resistance and torsion resistance for lifting machine |
| CN102254597A (en) * | 2011-04-25 | 2011-11-23 | 江苏天地龙电缆有限公司 | Photovoltaic cable and manufacture method thereof |
| CN102314972A (en) * | 2010-07-08 | 2012-01-11 | 江苏亨通电力电缆有限公司 | Process for manufacturing shielding soft cable with two-core semicircular conductor for communication power supply |
| CN102332330A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Power and control combined cable for rail transit vehicle |
| CN106683763A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | Cable used for conduction charging system of electric vehicle |
| WO2020094004A1 (en) * | 2018-11-06 | 2020-05-14 | 江苏亨通电力电缆有限公司 | Low-voltage wind energy cable |
| CN114360774A (en) * | 2021-12-09 | 2022-04-15 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
| CN114864148A (en) * | 2022-05-09 | 2022-08-05 | 江苏中煤电缆有限公司 | Torsion-resistant flexible cable with aluminum alloy core for wind power generation and preparation method thereof |
| CN116072335A (en) * | 2023-03-22 | 2023-05-05 | 浙江天杰实业股份有限公司 | Torsion-resistant cable for wind driven generator and production process |
-
2007
- 2007-11-11 CN CNU2007203069042U patent/CN201166996Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102314972A (en) * | 2010-07-08 | 2012-01-11 | 江苏亨通电力电缆有限公司 | Process for manufacturing shielding soft cable with two-core semicircular conductor for communication power supply |
| CN102082000A (en) * | 2010-12-23 | 2011-06-01 | 衡阳恒飞电缆有限责任公司 | Rubber-sheathed flexible cable with movement resistance and torsion resistance for lifting machine |
| CN102082000B (en) * | 2010-12-23 | 2013-01-02 | 衡阳恒飞电缆有限责任公司 | Rubber-sheathed flexible cable with movement resistance and torsion resistance for lifting machine |
| CN102254597A (en) * | 2011-04-25 | 2011-11-23 | 江苏天地龙电缆有限公司 | Photovoltaic cable and manufacture method thereof |
| CN102332330A (en) * | 2011-06-22 | 2012-01-25 | 江苏天地龙电缆有限公司 | Power and control combined cable for rail transit vehicle |
| CN102332330B (en) * | 2011-06-22 | 2013-05-22 | 铜陵中冠电缆有限公司 | Power and control combined cable for rail transit vehicle |
| CN106683763A (en) * | 2015-11-11 | 2017-05-17 | 衡阳恒飞电缆有限责任公司 | Cable used for conduction charging system of electric vehicle |
| WO2020094004A1 (en) * | 2018-11-06 | 2020-05-14 | 江苏亨通电力电缆有限公司 | Low-voltage wind energy cable |
| CN114360774A (en) * | 2021-12-09 | 2022-04-15 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
| CN114360774B (en) * | 2021-12-09 | 2023-11-03 | 通鼎互联信息股份有限公司 | High-elasticity flexible cable |
| CN114864148A (en) * | 2022-05-09 | 2022-08-05 | 江苏中煤电缆有限公司 | Torsion-resistant flexible cable with aluminum alloy core for wind power generation and preparation method thereof |
| CN116072335A (en) * | 2023-03-22 | 2023-05-05 | 浙江天杰实业股份有限公司 | Torsion-resistant cable for wind driven generator and production process |
| CN116072335B (en) * | 2023-03-22 | 2024-02-06 | 浙江天杰实业股份有限公司 | Torsion-resistant cable for wind driven generator and production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20161111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |