CN108426831B - Device and method for testing adhesive force of cable conductor - Google Patents
Device and method for testing adhesive force of cable conductor Download PDFInfo
- Publication number
- CN108426831B CN108426831B CN201810238445.1A CN201810238445A CN108426831B CN 108426831 B CN108426831 B CN 108426831B CN 201810238445 A CN201810238445 A CN 201810238445A CN 108426831 B CN108426831 B CN 108426831B
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- cable
- conductor
- insulating layer
- fixed cylinder
- stop
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- 239000004020 conductor Substances 0.000 title claims abstract description 66
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 239000000853 adhesive Substances 0.000 title abstract description 13
- 230000001070 adhesive effect Effects 0.000 title abstract description 13
- 238000000034 method Methods 0.000 title abstract description 12
- 238000000605 extraction Methods 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a device and a method for testing the adhesive force of a cable conductor. The device comprises a tension machine and a jig arranged on the tension machine; the fixture comprises a fixed cylinder, an inner cavity for accommodating the insulating layer is formed in the fixed cylinder, and a stop piece connected with the end part of the fixed cylinder and provided with a drawing hole, the drawing hole is used for the conductor to be drawn away from the inner cavity from the insulating layer, and the stop piece is used for stopping the insulating layer to be drawn away from the inner cavity. The cable conductor is pulled away by the pulling-away hole, so that the adhesive force between the cable conductor and the cable insulating layer is effectively tested, and the quality of the cable is judged and evaluated.
Description
Technical Field
The invention relates to the field of machinery, in particular to a device and a method for testing the adhesive force of a cable conductor.
Background
At present, in the cable field, no related testing device and method exist for the adhesive force between a cable core conductor and a cable insulating layer, so that the medium-voltage cable is good and bad in market, a user can easily separate the conductor from the insulation in the installation process, and serious potential safety hazards are caused for use.
If the adhesion force between the cable conductor and the cable insulation layer is smaller, the cable conductor can be easily separated from the cable insulation layer, the conductor is directly contacted with air, oxidation of the conductor is accelerated, the resistance of the position is increased, the current is increased, insulation aging is accelerated after long-term operation, and the service life of the cable is reduced. Therefore, there is an urgent need for a device that can test the adhesion between a cable conductor and a cable insulation layer.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a device and a method for testing the adhesive force of a cable conductor, which can test the adhesive force between the cable conductor and a cable insulating layer.
The invention solves the technical problems by adopting the technical scheme that the invention provides a pulling device for testing the adhesive force of a cable conductor, which is used for testing the adhesive force between an insulating layer and the conductor of the cable and comprises the following components:
the device comprises a tension machine and a jig arranged on the tension machine; the fixture comprises a fixed cylinder, an inner cavity for accommodating the insulating layer is formed in the fixed cylinder, and a stop piece connected with the end part of the fixed cylinder and provided with a drawing hole, the drawing hole is used for the conductor to be drawn away from the inner cavity from the insulating layer, and the stop piece is used for stopping the insulating layer to be drawn away from the inner cavity.
Preferably, the stop piece comprises a stop seat and a stop body, wherein the stop seat is provided with a positioning hole for installing the stop body, and the drawing-out hole is formed in the stop body.
Preferably, the stop seat is cylindrical.
Preferably, the stop body is in a shape of a Chinese character 'yang'.
Preferably, the fixed cylinder is a cavity with one end open.
Preferably, the stop seat is provided with threads which can be in threaded connection with the opening end of the fixed cylinder.
Preferably, a connecting part is arranged at the other end of the fixed cylinder corresponding to the opening end.
Preferably, the connecting part is provided with a pin hole for the bolt to pass through.
Preferably, the pulling machine further comprises a pulling clamp capable of locking the pull-out cable conductor.
Also provided is a method for testing the adhesion force of a cable conductor, comprising the following steps:
providing a cable with one end exposed out of a conductor, and placing the cable into an inner cavity of the jig;
installing the jig with the cable inside on a pulling machine, and clamping the end of the cable, which is exposed out of the conductor, by the force of the pulling machine;
and enabling a pulling machine to pull the conductor of the cable and the insulating layer to be pulled away.
The invention relates to a device and a method for testing the adhesive force of a cable conductor, in particular to a device and a method for testing the adhesive force between the cable conductor and a cable insulating layer in a mode that a cable conductor is pulled away by a pulling-away hole through stopping a stopping piece on the cable insulating layer, so that the quality of the cable is judged and evaluated.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for testing adhesion of a cable conductor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating an apparatus for testing adhesion of a cable conductor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device jig for testing adhesion of a cable conductor according to an embodiment of the invention.
In the figure: 1-pulling machine, 11-pulling clamp, 2-tool, 21-fixed cylinder, 211-inner cavity, 212-connecting part, 213 pin hole, 214-bolt, 22-stopper, 221-stopper seat, 222-stopper body, 223-draw-out hole, 31-insulating layer, 32-conductor.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following description will explain specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort. In addition, the term "azimuth" refers to a relative positional relationship between the members, not an absolute positional relationship.
Please refer to fig. 1, 2 and 3. An apparatus for testing adhesion of a cable conductor according to an embodiment of the present invention includes: the tension device comprises a tension machine 1 and a jig 2 arranged on the tension machine 1; the fixture 2 includes a fixing cylinder 21, an inner cavity 211 for accommodating the insulating layer 31 is formed inside the fixing cylinder 21, and a stop member 22 connected to an end of the fixing cylinder 21 and having a pull-out hole 223, the pull-out hole 223 is used for allowing the conductor 32 to be pulled out of the inner cavity 211 from the insulating layer 31, and the stop member 22 is used for stopping the insulating layer 31 from being pulled out of the inner cavity 211. By stopping the cable insulation layer 31 by the stopper 22, the adhesion between the cable conductor 32 and the cable insulation layer 31 can be effectively tested in such a manner that the cable conductor 32 is pulled away by the pulling-away hole 223, thereby judging and evaluating the quality of the cable.
The jig 2 is made of 40Cr and has the characteristics of high hardness and difficult deformation.
The inner cavity 211 can more effectively ensure the flatness of the cable, ensure that the cable is not bent, and avoid the influence of inconsistent friction force of the cable insulating layer 31 when the inner conductor 32 is pulled away, so that the measured adhesive force is larger or smaller than the actual value, and the data is inaccurate.
The stopper 22 includes a stopper seat 221 and a stopper body 222. The function of the stop body 222 is to stop the cable insulation layer 31 in the inner cavity 211, prevent the cable insulation layer 31 from moving along with the cable conductor 32 due to the drawing of the cable conductor 32, and simultaneously play a reinforcing role, because the cable insulation layer 31 can directly act on the stop body 222 in the drawing process of the cable conductor 32 to generate great pressure, through the combined use of the stop seat 221 and the stop piece 22, the separation of the cable insulation layer 31 and the cable conductor 32 can be firmly completed, the stop seat 221 is provided with a positioning hole for installing the stop body 222, the drawing hole 223 is formed in the stop body 222, the stop body 222 is in a convex shape, the convex part can be just accommodated and installed in the positioning hole of the stop seat 221, and the displacement and the shaking of the cable insulation layer 31 in the drawing process of the cable conductor 32 can be avoided to a certain extent, and the adhesion force between the cable insulation layer 31 and the cable conductor 32 can not be truly reflected.
The stopper 221 is cylindrical, and the stopper 221 is provided with a screw thread screwed to the opening end of the fixed cylinder 21. The purpose of the cylindrical stopper 221 is to make a better and fixed connection, and the stopper 221 and the fixed cylinder 21 are both cylindrical and screwed together by screw threads. The screw connection mode not only can ensure that the connection is more stable, but also is easier to detach and install, thereby not only bringing stability, but also showing good convenience; the connection mode of the stop seat 221 and the fixed cylinder 21 is not limited to screw connection, the stop seat 221 can be connected with the fixed cylinder 21 in a clamping mode, the stop seat 221 is provided with a clamping protrusion, the fixed cylinder 21 is provided with a clamping buckle, and the screw connection effect can be achieved through the matching of the clamping protrusion and the clamping buckle.
The fixed cylinder 21 is a cavity with one end open, and can be better filled with cables to be tested from the open section, so that the cable is convenient and quick, and meanwhile, the cable can be further ensured to be kept in a flat form in the cavity, and the cable cannot be deformed by external factors or the drawing of the cable conductor 32.
The other end of the fixed cylinder 21 corresponding to the open end is provided with a connecting portion 212. The connecting portion 212 is an integral structure of the fixing cylinder 21, and is used for connecting the fixing cylinder 21 to the base of the tension machine 1, and ensuring that the fixing cylinder 21 is stable and stationary when the cable conductor 32 is pulled out, so as to ensure that the cable insulation layer 31 does not move along with the pulling out of the cable conductor 32.
The connecting portion 212 is provided with a pin hole 213 for the bolt 214 to pass through, so that the fixing cylinder 21 can be mounted more conveniently and rapidly, and meanwhile, the stability of the fixing cylinder 21 is well ensured.
The pulling machine 1 further comprises a pulling clamp 11 capable of locking the pull-out cable conductor 32, the pulling clamp 11 being used for locking the cable conductor 32 and pulling the cable conductor 32 out of the cable insulation 31.
Also provided is a method for testing the adhesion of the cable conductor 32, comprising:
providing a cable with one end exposed out of a conductor 32, wherein the length of the cable is 400mm, the length of the conductor 32 exposed out of the stripping insulation layer 31 is 100mm long, the section on the cable needs to be processed smoothly, the influence of the uneven section on the adhesion test result is avoided, the cable is placed into the inner cavity 211 of the jig 2, the end of the cable, which is not stripped out of the insulation layer 31, is placed into the inner cavity 211, the conductor 32 exposed out of the end of the stripping insulation layer 31 of the cable passes through the extraction hole 223 on the stop body 222, and then the stop seat 221 and the fixing cylinder 21 are in threaded connection through threads.
The fixture 2 with the built-in cable is arranged on the tension machine 1, and is connected with the tension machine 1 through a connecting part 212 on a fixed cylinder 21, specifically, the fixture is realized through the matched use of a bolt 214 and a pin hole 213; and the end of the cable, which is exposed out of the conductor 32, is clamped by the puller force 1, so that the conductor 32 and the cable are prevented from being bent as much as possible after clamping, and the authenticity of the test result is ensured.
Finally, the tension machine 1 is started, the tension clamp 11 drives the clamped conductor 32 to move upwards, the end of the cable, which is not stripped from the insulating layer 31, is fixed in the fixed cylinder 21, so that the tension machine 1 pulls the conductor 32 of the cable to be separated from the insulating layer 31, and the indication displayed on the tension machine 1 is read, so that a test result is obtained.
The invention tests cables of different types, and determines the size of the fixed cylinder 21 and the opening size and position of the drawing-out hole 223 according to the specific conditions of the cables. The jig 2 with various specifications can be customized in advance according to the cable model, and the jig can be replaced according to actual needs during testing.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (4)
1. Device for testing the adhesion of a cable conductor, for testing the adhesion between an insulating layer (31) and a conductor (32) of a cable, characterized in that: comprises a tension machine (1) and a jig (2) arranged on the tension machine (1); the jig (2) comprises a fixed cylinder (21), an inner cavity (211) for accommodating the insulating layer (31) is formed in the fixed cylinder (21), and a stop piece (22) connected with the end part of the fixed cylinder (21) and provided with a drawing-out hole (223), the drawing-out hole (223) is used for allowing the conductor (32) to be drawn out of the inner cavity (211) from the insulating layer (31), and the stop piece (22) is used for stopping the insulating layer (31) from being drawn out of the inner cavity (211);
the stop piece (22) comprises a stop seat (221) and a stop body (222), the stop seat (221) is provided with a positioning hole for installing the stop body (222), and the extraction hole (223) is formed in the stop body (222);
the stop seat (221) is cylindrical;
the stop body (222) is in a convex shape;
the fixed cylinder (21) is a cavity with one end open;
the other end corresponding to the opening end of the fixed cylinder (21) is provided with a connecting part (212), the connecting part (212) is of an integrated structure of the fixed cylinder (21), and the connecting part (212) is provided with a pin hole (213) for a bolt (214) to pass through.
2. A device for adhesion testing of cable conductors according to claim 1, characterized in that the stop seat (221) is provided with a thread which can be screwed with the open end of the fixing cylinder (21).
3. An apparatus for cable conductor adhesion testing according to claim 1, wherein: the pulling machine (1) further comprises a pulling clamp (11) capable of locking the pull-out cable conductor (32).
4. A test method applied to the device for testing the adhesion force of the cable conductor as claimed in claim 1, characterized in that:
providing a cable with one end exposed out of a conductor (32), and placing the cable into an inner cavity (211) of the jig (2);
installing the jig (2) with the cable inside on a pulling machine (1), and clamping the end of the cable, which is exposed out of a conductor (32), by the pulling machine force (1);
and causing a pulling machine (1) to pull the conductor (32) of the cable away from the insulating layer (31).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078559 | 2017-11-06 | ||
| CN2017110785596 | 2017-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108426831A CN108426831A (en) | 2018-08-21 |
| CN108426831B true CN108426831B (en) | 2024-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238445.1A Active CN108426831B (en) | 2017-11-06 | 2018-03-22 | Device and method for testing adhesive force of cable conductor |
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| Country | Link |
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| CN (1) | CN108426831B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447430B (en) * | 2020-03-25 | 2023-07-18 | 赣州西维尔金属材料科技有限公司 | Device and method for testing binding force of fiber surface coating |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0854336A (en) * | 1994-08-15 | 1996-02-27 | Dainippon Printing Co Ltd | Peel force measuring instrument |
| EP2590269A1 (en) * | 2011-11-04 | 2013-05-08 | Integration Technique et Cablage (ITEC) | Equipped electric conductor |
| CN103143908A (en) * | 2013-01-15 | 2013-06-12 | 广州供电局有限公司 | Device and method for pulling out cable core |
| CN103715587A (en) * | 2012-10-08 | 2014-04-09 | 科马斯控股股份公司 | Method for stripping a cable |
| CN103994924A (en) * | 2014-05-30 | 2014-08-20 | 淮南新光神光纤线缆有限公司 | Lead release force testing mould and method |
| CN104907912A (en) * | 2015-06-23 | 2015-09-16 | 江苏五洲电磁线有限公司 | Cable insulation layer stripping machine |
| KR20150129334A (en) * | 2014-05-02 | 2015-11-20 | 조익훈 | Peeling apparatus and peeling method |
| CN207610973U (en) * | 2017-11-06 | 2018-07-13 | 湖北航天电缆有限公司 | A kind of device for the test of cable conductors adhesive force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9347868B2 (en) * | 2013-05-02 | 2016-05-24 | The Boeing Company | Methods and systems for rapidly testing adhesion |
-
2018
- 2018-03-22 CN CN201810238445.1A patent/CN108426831B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0854336A (en) * | 1994-08-15 | 1996-02-27 | Dainippon Printing Co Ltd | Peel force measuring instrument |
| EP2590269A1 (en) * | 2011-11-04 | 2013-05-08 | Integration Technique et Cablage (ITEC) | Equipped electric conductor |
| CN103715587A (en) * | 2012-10-08 | 2014-04-09 | 科马斯控股股份公司 | Method for stripping a cable |
| CN103143908A (en) * | 2013-01-15 | 2013-06-12 | 广州供电局有限公司 | Device and method for pulling out cable core |
| KR20150129334A (en) * | 2014-05-02 | 2015-11-20 | 조익훈 | Peeling apparatus and peeling method |
| CN103994924A (en) * | 2014-05-30 | 2014-08-20 | 淮南新光神光纤线缆有限公司 | Lead release force testing mould and method |
| CN104907912A (en) * | 2015-06-23 | 2015-09-16 | 江苏五洲电磁线有限公司 | Cable insulation layer stripping machine |
| CN207610973U (en) * | 2017-11-06 | 2018-07-13 | 湖北航天电缆有限公司 | A kind of device for the test of cable conductors adhesive force |
Non-Patent Citations (1)
| Title |
|---|
| 电线电缆剥皮器;橡塑技术与装备;20171201(第23期);全文 * |
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| Publication number | Publication date |
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| CN108426831A (en) | 2018-08-21 |
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