CN105067434A - Device for detecting torsion of single-strand intertwisted armored cable under tension - Google Patents
Device for detecting torsion of single-strand intertwisted armored cable under tension Download PDFInfo
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- CN105067434A CN105067434A CN201510477049.0A CN201510477049A CN105067434A CN 105067434 A CN105067434 A CN 105067434A CN 201510477049 A CN201510477049 A CN 201510477049A CN 105067434 A CN105067434 A CN 105067434A
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- 238000010276 construction Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 3
- 230000005484 gravity Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RRVPPYNAZJRZFR-VYOBOKEXSA-N 1-oleoyl-2-palmitoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)O[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)COC(=O)CCCCCCC\C=C/CCCCCCCC RRVPPYNAZJRZFR-VYOBOKEXSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
The invention discloses a device for detecting the torsion of a single-strand intertwisted armored cable under tension. The device comprises a tensile machine dynamic end, a tensile machine static end and a rotary connector. The tensile machine dynamic end is in fixed connection with the static end of the rotary connector through a connecting rod I, the dynamic end of the rotary connector is fixedly connected to a connection ring through a traction member, one connection ring side opposite to the traction member is provided with a fixture I, the tensile machine static end is in fixed connection with a fixture II through a connecting rod II, and the fixture II and the fixture I are connected by a to-be-tested cable. The device provided by the invention can simulate the torsion of the single-strand intertwisted armored cable under tension during construction and operation, visually measures the relation of torsion and tension, also can measure the gravity needed by torsionproof weights inhibiting torsion, and effectively overcomes strand loosing, loose cable and other faults likely to be caused during laying and operation of cables.
Description
Technical field
The invention belongs to stranded cable detection technique field, especially relate to a kind of device detecting the stranded armored cable of single line and reverse under tension.
Background technology
Cable that is stranded with single line or armouring can twist when being subject to tension force, and during internal stresses release and the cable tension of this torsion mainly due to single line introducing when twisting processed, the structural deformation that produces causes.Usually, in the little situation of tension force, outer twisted wire can reverse (i.e. back twist) in the other direction.Analyze from the essential characteristic of twisted wire, this torsion is inevitable, and just degree is different, and to different cable structures and material, the number of torsions that unit length allows is not identical yet.In existing single line stranded armored cable Related product specification, all also do not set up corresponding inspection methods and criteria.
To cable that is stranded with single line or armouring, back twist then means the elongation of outer twisted wire relative to cable body, may cause broken lot (twisted wire is loose), plays the faults such as lantern (twisted wire is heaved) in laying and running; To the cable (as OPGW, OPPC etc.) including fiber unit, due to the elongation of cable body, then cause fiber unit length relatively to shorten (apparent fiber unit retraction) and optic fibre force, decay occurs time serious and increases or disconnected fibre.
Rise lantern and broken lot fault usually all at the construction line-putting and continue time produce, i.e. the tension force that is subject to of cable little.So the object (preventing turning round hammer) hanging constant weight at cable unwrapping wire port can suppress to reverse.
Because the degree reversed is all relevant with cable structure, material behavior, process equipment and process conditions, therefore have larger dispersiveness, especially also relevant with construction drawing tension, the relation of both can not calculate by dependency theory.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of device detecting the stranded armored cable of single line and reverse under tension.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of device detecting the stranded armored cable of single line and reverse under tension, comprise puller system moved end, the quiet end of puller system and rotary connector, puller system moved end is affixed by the quiet end of connecting rod I and rotary connector, the moved end of rotary connector is connected with abutment ring by traction piece, abutment ring is provided with fixture I relative to the side of traction piece, the quiet end of puller system is connected with fixture II by connecting rod II, is connected cable to be measured between fixture II with fixture I.
The moved end outside surface of described rotary connector is provided with scale mark, and the corresponding scale mark of quiet end of this rotary connector is provided with a tag line.
The bottom of described abutment ring is movably equipped with counterweight frame, and counterweight frame is provided with multiple for suppressing the counterweight of cable torsion to be measured.
Compared with prior art, advantage of the present invention is: device of the present invention can simulate the stranded armored cable of single line when constructing and run because being subject to the torsion that tension force occurs, measure the relation reversed with tension force intuitively, simultaneously, can also measure and suppress to reverse the anti-gravity turned round needed for hammer, fill up relevant criterion blank in this respect, effectively overcome the fault such as broken lot, a lantern that cable may cause in laying and running.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the sampling structure schematic diagram of cable to be measured in the present invention.
Wherein, 1, puller system moved end, 11, the quiet end of puller system, 2, connecting rod I, 21, connecting rod II, 3, rotary connector, 4, traction piece, 5, abutment ring, 6, fixture I, 61, fixture II, 7, cable to be measured, 8, counterweight frame, 9, counterweight, 10, sampling jig.
Embodiment:
As shown in Figure 1, a kind of device detecting the stranded armored cable of single line and reverse under tension, comprise puller system moved end 1, the quiet end 11 of puller system and rotary connector 3, puller system moved end 1 is affixed by the quiet end of connecting rod I2 and rotary connector 3, the moved end of rotary connector 3 is connected with abutment ring 5 by traction piece 4, abutment ring 5 is provided with fixture I6 relative to the side of traction piece 4, the bottom of abutment ring 5 is movably equipped with counterweight frame 8, counterweight frame 8 is provided with multiple counterweight 9 for suppressing cable 7 to be measured to reverse, the quiet end 11 of puller system is connected with fixture II61 by connecting rod II21, cable 7 to be measured is connected between fixture II61 with fixture I6, the moved end outside surface of rotary connector 3 is provided with scale mark, and the corresponding scale mark of the quiet end of this rotary connector 3 is provided with a tag line.
In the present invention, puller system moved end 1 and the quiet end 11 of puller system are fixed on frame or ground, and its pulling force that can provide should be not less than total Fracture Force of cable 7 to be measured; For guaranteeing rotary connector 3 flexible rotating under tension, the stretching resistance of rotary connector 3 should be more than 2 times of the total Fracture Force of cable 7 to be measured; Fixture I6 and fixture II61 is the strain clamp of pre reeled silk type or other versions, applies tension force for treating survey line cable 7; Traction piece 4 be one section of analog cable working without twist composite steel rope or other stressed time body without the metal reversed or nonmetal rope, the intensity of its body tension and link should be greater than total Fracture Force of cable 7 to be measured; Connecting rod I2 and connecting rod II21 is steel, and the intensity of its body tension and link should be greater than more than one times of the total Fracture Force of cable 7 to be measured.
During analog detection, start puller system moved end 1, along with the continuous increase of pulling force, cable 7 to be measured will produce torsion in various degree and directly the moved end of driven rotary connector 3 is rotated, maintain this tension force after value of thrust needed for arrival, required value of thrust selects 25% or 40% of the total Fracture Force of cable 7 to be measured usually, respectively construction simulation traction and maximum tension when running, when detecting with other tension values, maximum tension value should not exceed 90% of the total Fracture Force of cable 7 to be measured.In this process, the direction reversed by the scale mark reading on rotary connector 3, number of times and angle, in order to judge whether this torsion degree is treated the construction of survey line cable 7 and run harmful.
If this torsion is harmful or needs to suppress to reverse, the then tension force that applies of slow releasing, zero-bit is got back in the moved end observing rotary connector 3, counterweight frame 8 is hung over the bottom of abutment ring 5, on counterweight frame 8, first place the counterweight 9 of constant weight, start puller system moved end 1 to former appointment value of thrust, read the torsion degree reduced, repeatedly adjust counterweight 9 weight again, until torsion degree to treat survey line cable 7 harmless.
In order to allow the torsion detected close to true, the position, termination of cable 7 to be measured should be avoided to have occurred before detection to loosen and reverse.As shown in Figure 2, first cable is released at least 10 meters long from dish tool, cable installs first sampling jig 10, and block the part of releasing above, continue the cable on discharging disc tool subsequently, to effective length L, second sampling wire clamp 10 is installed, and block the part of releasing below, effective length L is generally 10 meters or longer, is finally connected in the device of Fig. 1 by the cable to be measured 7 of sampling section, the outside of two fixtures 6 and 61 is clipped.
Claims (3)
1. the device detecting the stranded armored cable of single line and reverse under tension, it is characterized in that: comprise puller system moved end, the quiet end of puller system and rotary connector, described puller system moved end is affixed by the quiet end of connecting rod I and rotary connector, the moved end of described rotary connector is connected with abutment ring by traction piece, described abutment ring is provided with fixture I relative to the side of traction piece, the quiet end of described puller system is connected with fixture II by connecting rod II, and described fixture II is connected cable to be measured with between fixture I.
2. a kind of device detecting the stranded armored cable of single line and reverse under tension according to claim 1, is characterized in that: the moved end outside surface of described rotary connector is provided with scale mark, and the corresponding scale mark of quiet end of this rotary connector is provided with a tag line.
3. a kind of device detecting the stranded armored cable of single line and reverse under tension according to claim 1, it is characterized in that: the bottom of described abutment ring is movably equipped with counterweight frame, described counterweight frame is provided with multiple for suppressing the counterweight of cable torsion to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510477049.0A CN105067434B (en) | 2015-08-07 | 2015-08-07 | A kind of device that the twisted armored cable of detection single line reverses under tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510477049.0A CN105067434B (en) | 2015-08-07 | 2015-08-07 | A kind of device that the twisted armored cable of detection single line reverses under tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067434A true CN105067434A (en) | 2015-11-18 |
| CN105067434B CN105067434B (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510477049.0A Active CN105067434B (en) | 2015-08-07 | 2015-08-07 | A kind of device that the twisted armored cable of detection single line reverses under tension |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501108A (en) * | 2016-09-09 | 2017-03-15 | 中国电力科学研究院 | A kind of OPGW single lines torsional fatigue test method and device |
| CN110286015A (en) * | 2019-06-28 | 2019-09-27 | 江苏中利集团股份有限公司 | A kind of heatproof impact test sampling instrument |
| CN113176145A (en) * | 2021-04-30 | 2021-07-27 | 宁波东方电缆股份有限公司 | Cable tension-torsion characteristic testing method based on bending fatigue testing machine |
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|---|---|---|---|---|
| SU691728A1 (en) * | 1977-06-01 | 1979-10-15 | Ленинградский научно-исследовательский институт текстильной промышленности | Apparatus for the determination of twist of a multicomponent filament |
| GB1555895A (en) * | 1977-04-01 | 1979-11-14 | Standard Telephones Cables Ltd | Cable grip |
| KR20080039571A (en) * | 2006-11-01 | 2008-05-07 | 한국표준과학연구원 | The sample wire cable assembly for steel wire cable tension measurement system |
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| CN102183418A (en) * | 2011-03-02 | 2011-09-14 | 华中科技大学 | Device for testing micro-torsion mechanical property of low-dimension material |
| CN203385624U (en) * | 2013-07-03 | 2014-01-08 | 上海出入境检验检疫局机电产品检测技术中心 | Power line pulling and twisting testing device |
| CN103499497A (en) * | 2013-10-11 | 2014-01-08 | 华北电力大学（保定） | Overhead line bending rigidity measuring device |
| CN205015222U (en) * | 2015-08-07 | 2016-02-03 | 江苏通光光缆有限公司 | Detect single line transposition armor cable torsional device under tension |
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2015
- 2015-08-07 CN CN201510477049.0A patent/CN105067434B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1555895A (en) * | 1977-04-01 | 1979-11-14 | Standard Telephones Cables Ltd | Cable grip |
| SU691728A1 (en) * | 1977-06-01 | 1979-10-15 | Ленинградский научно-исследовательский институт текстильной промышленности | Apparatus for the determination of twist of a multicomponent filament |
| KR20080039571A (en) * | 2006-11-01 | 2008-05-07 | 한국표준과학연구원 | The sample wire cable assembly for steel wire cable tension measurement system |
| CN101275875A (en) * | 2007-03-28 | 2008-10-01 | 江苏通光信息有限公司 | Seabed optical cable tension torque test method and device thereof |
| CN102183418A (en) * | 2011-03-02 | 2011-09-14 | 华中科技大学 | Device for testing micro-torsion mechanical property of low-dimension material |
| CN203385624U (en) * | 2013-07-03 | 2014-01-08 | 上海出入境检验检疫局机电产品检测技术中心 | Power line pulling and twisting testing device |
| CN103499497A (en) * | 2013-10-11 | 2014-01-08 | 华北电力大学（保定） | Overhead line bending rigidity measuring device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501108A (en) * | 2016-09-09 | 2017-03-15 | 中国电力科学研究院 | A kind of OPGW single lines torsional fatigue test method and device |
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| US20180356324A1 (en) * | 2016-09-09 | 2018-12-13 | China Electric Power Research Institute Company Limited | Opgw single wire torsional fatigue test method, apparatus and storage medium |
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| CN110286015A (en) * | 2019-06-28 | 2019-09-27 | 江苏中利集团股份有限公司 | A kind of heatproof impact test sampling instrument |
| CN113176145A (en) * | 2021-04-30 | 2021-07-27 | 宁波东方电缆股份有限公司 | Cable tension-torsion characteristic testing method based on bending fatigue testing machine |
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| Publication number | Publication date |
|---|---|
| CN105067434B (en) | 2019-01-18 |
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Effective date of registration: 20231109 Address after: 226100 No. 1933, Guangzhou road, Binjiang street, Haimen District, Nantong City, Jiangsu Province Patentee after: JIANGSU TONGGUANG OPTICAL FIBER CABLE Co.,Ltd. Patentee after: JIANGSU TONGGUANG ELECTRONIC WIRE & CABLE Corp.,Ltd. Address before: 226100 Middle 2, No. 3966 Dasheng Road, Haimen Port, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU TONGGUANG OPTICAL FIBER CABLE Co.,Ltd. |