CN114927262B - Magnetic composite material core for composite material core overhead conductor and preparation method thereof - Google Patents
Magnetic composite material core for composite material core overhead conductor and preparation method thereof Download PDFInfo
- Publication number
- CN114927262B CN114927262B CN202210624272.3A CN202210624272A CN114927262B CN 114927262 B CN114927262 B CN 114927262B CN 202210624272 A CN202210624272 A CN 202210624272A CN 114927262 B CN114927262 B CN 114927262B
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- wall
- composite core
- sliding
- magnetizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 206
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 title claims description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 184
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 177
- 239000004917 carbon fiber Substances 0.000 claims abstract description 177
- 239000006247 magnetic powder Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 71
- 229910052782 aluminium Inorganic materials 0.000 claims description 71
- 238000005507 spraying Methods 0.000 claims description 16
- 239000003822 epoxy resin Substances 0.000 claims description 14
- 229920000647 polyepoxide Polymers 0.000 claims description 14
- 238000007598 dipping method Methods 0.000 claims description 10
- 238000007689 inspection Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 5
- 239000010931 gold Substances 0.000 claims 5
- 229910052737 gold Inorganic materials 0.000 claims 5
- 239000012211 strain insulator Substances 0.000 claims 5
- 238000010422 painting Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000002788 crimping Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000005415 magnetization Effects 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- 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
Abstract
The invention provides a magnetic composite material core for a composite material core overhead wire and a preparation method thereof. According to the invention, the magnetic powder is arranged in the carbon fiber composite core, the carbon fiber composite core is magnetized by the magnetizing machine, after the tension fitting is installed, the magnetic powder flaw detector is utilized to detect the magnetic leakage of the carbon fiber composite core at the tension fitting, the flaw detection of the carbon fiber composite core at the tension fitting is realized by utilizing the magnetic powder flaw detection, the crimping defect is found in time, the quality of the carbon fiber composite core is ensured, the electric energy is conveniently transmitted, the loss of the electric energy is reduced, and the energy saving effect is achieved.
Description
Technical Field
The invention relates to the technical field of power cables, in particular to a magnetic composite material core for a composite material core overhead conductor and a preparation method thereof.
Background
Compared with the conventional wire, the carbon fiber composite wire has the advantages of light weight, high tensile strength, good heat resistance, small thermal expansion coefficient, high Wen Huchui, high conductivity, low line loss, large current-carrying capacity, good corrosion resistance, difficult ice coating and the like, comprehensively solves various technical bottlenecks existing in the field of overhead transmission, represents the technical development trend of the future overhead wire, is beneficial to constructing a safe, environment-friendly and efficient energy-saving power transmission network, can be widely used for capacity improvement of old lines and power station buses, new line construction, and can be used for lines in special climates and geographic occasions such as large span, large fall, heavy ice areas, high pollution and the like. The method is applied to newly built lines, can improve the unit conveying capacity of the lines, ensures the robustness of the power grid, and is better in long-term economy.
The carbon fiber composite wire needs to be fixed by using the tension-resistant fitting when being installed, the tension-resistant fitting can cause crimping defects to the carbon fiber composite wire in the installation process, in order to ensure the quality of the carbon fiber composite wire, flaw detection is needed to be carried out on the carbon fiber composite wire after the tension-resistant fitting is installed, the existing carbon fiber composite wire does not contain magnetism, after the tension-resistant fitting is installed, flaw detection cannot be carried out on the carbon fiber composite wire at the position of the tension-resistant fitting directly by using the existing X-ray detection technology because the tension-resistant fitting is blocked, and the quality of the carbon fiber composite wire cannot be ensured.
Disclosure of Invention
The invention provides a magnetic composite material core for a composite material core overhead conductor, which is used for solving the technical problems that after a strain fitting is installed at present, the flaw detection on a carbon fiber composite conductor at the strain fitting cannot be directly carried out through the existing X-ray detection technology due to the blocking of the strain fitting, and the quality of the carbon fiber composite conductor cannot be ensured.
To solve the above technical problems, the present invention discloses a magnetic composite core for a composite core overhead conductor, comprising: the magnetic composite material core body comprises a carbon fiber composite core and an aluminum wire conducting layer, wherein magnetic powder is arranged inside the carbon fiber composite core, and the aluminum wire conducting layer is arranged outside the carbon fiber composite core.
Preferably, the carbon fiber composite core is any one of a single large-diameter carbon fiber core rod or a carbon fiber bundle formed by twisting a plurality of carbon fiber filaments.
Preferably, the cross section of the carbon fiber composite core is any one of round or oval.
Preferably, the aluminum wire conductive layer is at least provided with two layers, and the aluminum wire conductive layer is formed by twisting a plurality of aluminum wires.
Preferably, the section of the aluminum conductor is any one of Z-shaped or trapezoid, and the inner wall and the outer wall of the aluminum conductor are both cambered surfaces.
The invention also provides a preparation method of the magnetic composite material core for the composite material core overhead conductor, which is used for preparing the magnetic composite material core for the composite material core overhead conductor and comprises the following steps of:
step 1: preparing a carbon fiber composite core, wherein the carbon fiber composite core is prepared from epoxy resin, magnetic powder and carbon fibers;
step 2: twisting aluminum wires on the outer wall of the carbon fiber composite core to manufacture an aluminum wire conducting layer;
step 3: and magnetizing the preset magnetizing position of the carbon fiber composite core by using an automatic magnetizing device to prepare the magnetic composite core.
Preferably, in the step 1, the preparation method of the carbon fiber composite core includes the following steps:
step 11: firstly, uniformly mixing magnetic powder and liquid epoxy resin to prepare an epoxy resin composition;
step 12: injecting the epoxy resin composition into a dipping tank of a pultrusion device;
step 13: carrying out pultrusion on the carbon fiber through a gum dipping tank to obtain a single-strand carbon fiber wire;
step 14: and stranding a plurality of carbon fiber wires by a stranding machine to obtain carbon fiber bundles, thereby obtaining the stranded carbon fiber composite core.
Preferably, the automatic magnetizing device comprises a magnetizing box, a magnetizing machine is slidably arranged on the inner wall of the upper end of the magnetizing box, a magnetizing head is arranged at the output end of the magnetizing machine, and the output end of the magnetizing head faces the outer wall of the aluminum wire conducting layer.
Preferably, a fixing component is disposed in the magnetizing box, and the fixing component is used for fixing the carbon fiber composite core in the magnetizing box, and the fixing component includes:
the two clamping plates are symmetrically arranged at the left side and the right side of the carbon fiber composite core, and one side, close to each other, of each clamping plate is respectively abutted against the carbon fiber composite core;
the sliding column is fixedly arranged at one end, far away from the carbon fiber composite core, of the clamping plate, and a fixed key is fixedly arranged on the outer wall of the sliding column;
the sliding sleeve is sleeved on the outer wall of the sliding column, a sliding groove is formed in the inner wall of the sliding sleeve, the sliding groove is matched with the fixed key, the fixed key is in sliding connection with the sliding groove, the inner wall of the sliding sleeve is in sliding connection with the outer wall of the sliding column, a first spring is arranged in the sliding sleeve, one end of the first spring is fixedly connected with the inner wall of the sliding sleeve, and the other end of the first spring is fixedly connected with one end, far away from the clamping plate, of the sliding column;
the circular plate is fixedly arranged at one end, far away from the clamping plate, of the sliding sleeve, a first bearing is arranged on the periphery of the circular plate, and the inner ring of the first bearing is fixedly connected with the periphery of the circular plate;
The spline housing, spline housing one end with the plectane is kept away from sliding sleeve one end fixed connection, the spline housing other end sets up the integral key shaft, the integral key shaft outer wall with integral key housing inner wall sliding connection, left side the integral key shaft is kept away from spline housing one end sets up first motor, first motor is fixed to be set up the left side inner wall of magnetizing box, first motor output with the left side the integral key shaft is kept away from integral key housing one end fixed connection, the spline shaft on the right side keep away from integral key housing one end with magnetizing box right side inner wall rotation is connected, the left side the integral key housing periphery cover is established the second bearing inner ring with integral key housing periphery fixed connection;
the first fixing ring is sleeved on the outer wall of the first bearing, the inner wall of the first fixing ring is fixedly connected with the outer wall of the first bearing, and a first connecting rod is fixedly arranged at the lower end of the first fixing ring;
the second fixing ring is sleeved on the outer wall of the second bearing, the inner wall of the second fixing ring is fixedly connected with the outer wall of the second bearing, and a second connecting rod is fixedly arranged at the lower end of the second fixing ring;
The first sliding rail is fixedly arranged on the inner wall of the bottom of the magnetizing box, a first sliding block and a second sliding block are sequentially arranged on the first sliding rail from right to left, the first sliding block and the second sliding block are respectively in sliding connection with the first sliding rail, a first electric telescopic rod is fixedly arranged at the upper end of the first sliding block, the left end and the right end of the first electric telescopic rod are respectively fixedly connected with the lower ends of the first connecting rods on the two sides, and the upper end of the second sliding block is fixedly connected with the lower ends of the second connecting rods;
the sliding rod is fixedly arranged at the left end of the second sliding block, a sleeve is sleeved at one end of the sliding rod, which is far away from the second sliding block, the sliding rod is in sliding connection with the inner wall of the sleeve, one end of the sleeve, which is far away from the second sliding block, is fixedly connected with the inner wall of the left side of the magnetizing box, a second spring is arranged in the sleeve, one end of the second spring is fixedly connected with one end of the sliding rod, which is far away from the second sliding block, and the other end of the second spring is fixedly connected with the inner wall of the left side of the magnetizing box;
the first bevel gear is fixedly arranged on the spline shaft at the left side;
the first rotating shaft is arranged behind the spline shaft, the rear end of the first rotating shaft is rotationally connected with the inner wall of the rear side of the magnetizing box, a second bevel gear and a first belt pulley are sequentially arranged on the first rotating shaft from front to back, and the second bevel gear is meshed with the first bevel gear;
The second rotating shaft is arranged below the first rotating shaft, the rear end of the second rotating shaft is rotationally connected with the inner wall of the rear side of the magnetizing box, a first gear and a second belt pulley are sequentially arranged on the second rotating shaft from front to back, the first gear is an incomplete gear, and the second belt pulley is in transmission connection with the first belt pulley through a first transmission belt;
the rectangular frame is sleeved outside the first gear, first racks are symmetrically arranged on the inner walls of the left side and the right side of the rectangular frame, the first racks are symmetrically arranged on the left side and the right side of the first gear, and the first gear is intermittently meshed with the first racks;
the second sliding rail is vertically and fixedly arranged on the left inner wall of the magnetizing box, a third sliding block is arranged on the second sliding rail in a sliding manner, a third connecting rod is arranged between the third sliding block and the rectangular frame, one end of the third connecting rod is fixedly connected with the right side wall of the third sliding block, and the other end of the third connecting rod is fixedly connected with the left side wall of the rectangular frame;
the fixing plate is fixedly arranged on the right side wall of the rectangular frame;
the inclined plate is obliquely arranged on the right side of the fixed plate, the lower end of the inclined plate is hinged with the lower end of the fixed plate, and a fourth sliding block is arranged on one side, close to the fixed plate, of the inclined plate in a sliding manner;
The second electric telescopic rod is arranged between the fixed plate and the inclined plate, one end of the second electric telescopic rod is fixedly connected with the right side wall of the fixed plate, and the other end of the second electric telescopic rod is hinged with the side wall of the fourth sliding block;
the dead lever, the dead lever is fixed to be set up the left side wall of second connecting rod, the dead lever perpendicular to the second connecting rod, the dead lever is kept away from second connecting rod one end sets up the gyro wheel, the gyro wheel is kept away from dead lever one end with swash plate right side wall butt.
Preferably, the magnetizing box is further provided with a smearing assembly, the smearing assembly is used for spraying magnetic powder solution on the outer wall of the aluminum wire conductive layer and solidifying the magnetic powder solution, and the smearing assembly comprises:
the third electric telescopic rod is fixedly arranged at the lower end of the magnetizer, a spraying machine is fixedly arranged at the lower end of the third electric telescopic rod, and a spray head at the lower end of the spraying machine is matched with the outer wall of the upper end of the aluminum wire conducting layer;
the second motor is arranged on the inner wall of the rear side of the magnetizing box, a third rotating shaft is fixedly arranged at the output end of the second motor, a second gear is fixedly arranged at the front end of the third rotating shaft, and the second gear is a semicircular gear;
The fourth rotating shaft is arranged on the right side of the third rotating shaft, the rear end of the fourth rotating shaft is rotationally connected with the inner wall of the rear side of the magnetizing box, a third gear and a fourth gear are sequentially and fixedly arranged on the fourth rotating shaft from front to back, and the fourth gear is in clearance engagement with the second gear;
the two second racks are respectively arranged on the upper side and the lower side of the third gear, are distributed in a central symmetry mode about the axis of the fourth rotating shaft, and are meshed with the third gear at one side, close to the third gear, of each second rack;
the two arc-shaped mounting plates are symmetrically arranged at the left side and the right side of the third gear, the arc-shaped mounting plates are positioned behind the aluminum wire conducting layer, one side of each arc-shaped mounting plate, which is close to the carbon fiber composite core, is arranged into an arc shape and is matched with the rear side wall of the aluminum wire conducting layer, one side of each arc-shaped mounting plate, which is close to the aluminum wire conducting layer, is provided with a plurality of heating strips, and one side of each arc-shaped mounting plate, which is close to the second rack, is fixedly connected with one end of the second rack;
the third spring is horizontally arranged between the arc-shaped mounting plate and the second rack, one end of the third spring is fixedly connected with the side wall of the arc-shaped mounting plate, and the other end of the third spring is fixedly connected with one end, away from the arc-shaped mounting plate, of the second rack;
The sliding plate is fixedly arranged on the rear side wall of the arc-shaped mounting plate, and one end, far away from the arc-shaped mounting plate, of the sliding plate is connected with the inner wall of the rear side of the magnetizing box in a left-right sliding manner.
The technical scheme of the invention has the following advantages: the invention provides a magnetic composite material core for a composite material core overhead wire and a preparation method thereof. According to the invention, the magnetic powder is arranged in the carbon fiber composite core, the carbon fiber composite core is magnetized by the magnetizing machine, after the tension fitting is installed, the magnetic powder flaw detector is utilized to detect the magnetic leakage of the carbon fiber composite core at the tension fitting, the flaw detection of the carbon fiber composite core at the tension fitting is realized by utilizing the magnetic powder flaw detection, the crimping defect is found in time, the quality of the carbon fiber composite core is ensured, the electric energy is conveniently transmitted, the loss of the electric energy is reduced, and the energy saving effect is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and other advantages of the invention may be realized and attained by means of the instrumentalities particularly pointed out in the written description and the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a diagram of the overall structure of a magnetic composite core for a composite core overhead conductor in accordance with the present invention;
FIG. 2 is a schematic view of a Z-shaped aluminum wire structure according to the present invention;
FIG. 3 is a schematic view of a large diameter carbon fiber core rod according to the present invention;
FIG. 4 is a schematic view of a carbon fiber bundle according to the present invention;
FIG. 5 is a schematic view of a fastening assembly according to the present invention;
FIG. 6 is an enlarged view of FIG. 5A in accordance with the present invention;
FIG. 7 is an enlarged view of the invention at B in FIG. 5;
FIG. 8 is an enlarged view of FIG. 5C in accordance with the present invention;
FIG. 9 is a partial top view of the securing assembly of the present invention;
fig. 10 is a front view of the applicator assembly of the present invention;
fig. 11 is a partial left side view of the applicator assembly of the present invention.
In the figure: 1. a magnetic composite core body; 2. a carbon fiber composite core; 3. an aluminum wire conductive layer; 5. a carbon fiber core rod; 6. a carbon fiber bundle; 7. a magnetizing box; 8. a magnetizing apparatus; 9. a charging head; 10. a clamping plate; 11. a sliding column; 12. a sliding sleeve; 13. a first spring; 14. a circular plate; 15. a first bearing; 16. a spline housing; 17. a spline shaft; 18. a first motor; 19. a second bearing; 20. a first fixing ring; 21. a first connecting rod; 22. a second fixing ring; 23. a second connecting rod; 24. a first slide rail; 25. a first slider; 26. a second slider; 27. a first electric telescopic rod; 28. a slide bar; 29. a sleeve; 30. a second spring; 31. a first bevel gear; 32. a first rotating shaft; 33. a second bevel gear; 34. a first pulley; 35. a second rotating shaft; 36. a first gear; 37. a second pulley; 38. a first belt; 39. a rectangular frame; 40. a first rack; 41. a second slide rail; 42. a third slider; 43. a third connecting rod; 44. a fixing plate; 45. a sloping plate; 46. a fourth slider; 47. a second electric telescopic rod; 48. a fixed rod; 49. a roller; 50. a third electric telescopic rod; 51. a spraying machine; 52. a second motor; 53. a third rotating shaft; 54. a second gear; 55. a fourth rotating shaft; 56. a third gear; 57. a fourth gear; 58. a second rack; 59. an arc-shaped mounting plate; 60. a third spring; 61. a sliding plate; the plate 62 is placed.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present invention.
Example 1:
an embodiment of the present invention provides a magnetic composite core for a composite core overhead conductor, as shown in fig. 1-4, comprising: the magnetic composite material core body 1, the magnetic composite material core body 1 includes carbon fiber composite core 2 and aluminium wire conducting layer 3, the inside magnetic powder that is provided with of carbon fiber composite core 2, aluminium wire conducting layer 3 sets up the carbon fiber composite core 2 outside.
The working principle and the beneficial effects of the technical scheme are as follows: according to the magnetic composite material core provided by the invention, the magnetic composite material core body 1 comprises the carbon fiber composite core 2 and the aluminum wire conducting layer 3, the magnetic powder is arranged in the carbon fiber composite core 2, the whole carbon fiber composite core 2 is not magnetic in an initial state, before the strain fitting is installed, the magnetizing length of the carbon fiber composite core 2 is selected according to the length of the strain fitting, then the preset magnetizing position of the carbon fiber composite core 2 is selected according to the magnetizing length, the magnetizing machine is utilized to magnetize the preset magnetizing position of the carbon fiber composite core 2, so that the carbon fiber composite core 2 and the strain fitting are magnetic in the installation position, after the strain fitting is installed, the magnetic powder flaw detector can be utilized to perform magnetic leakage detection on the carbon fiber composite core 2 at the strain fitting, flaw detection on the carbon fiber composite core 2 at the strain fitting is realized by utilizing the magnetic powder, the crimping flaw is discovered in time, the quality of the carbon fiber composite core 2 is improved, the electric energy is convenient to be transmitted, and the loss of the electric energy is reduced, and the energy saving effect is achieved.
Example 2
On the basis of the above embodiment 1, as shown in fig. 1 to 4, the carbon fiber composite core 2 is any one of a single large-diameter carbon fiber core rod 5 or a carbon fiber bundle 6 formed by twisting a plurality of carbon fiber filaments;
The cross section of the carbon fiber composite core 2 is any one of a circle or an ellipse;
the aluminum wire conducting layer 3 is at least provided with two layers, the aluminum wire conducting layer 3 is formed by twisting a plurality of aluminum wires, the section of each aluminum wire is any one of Z-shaped or trapezoid, and the inner wall and the outer wall of each aluminum wire are both provided with cambered surfaces.
The working principle and the beneficial effects of the technical scheme are as follows: the carbon fiber composite core 2 is in two forms, one is composed of a single large-diameter carbon fiber core rod 5, the other is composed of a carbon fiber bundle 6 formed by twisting a plurality of carbon fiber wires, the section of the carbon fiber composite core 2 is round or oval, the aluminum wire conducting layer 3 is formed by twisting a plurality of aluminum wires, and the section of the aluminum wires is Z-shaped or trapezoid, so that the structure of the aluminum wire conducting layer 3 is more stable and compact, the overall structural strength of the magnetic composite core body 1 is improved, and the service life is prolonged.
Example 3
On the basis of embodiment 1 or 2, the invention also provides a preparation method of the magnetic composite material core for the composite material core overhead conductor, which is used for preparing the magnetic composite material core for the composite material core overhead conductor and comprises the following steps of:
Step 1: preparing a carbon fiber composite core 2, wherein the carbon fiber composite core 2 is prepared from epoxy resin, magnetic powder and carbon fiber;
step 2: twisting aluminum wires on the outer wall of the carbon fiber composite core 2 to manufacture an aluminum wire conducting layer 3;
step 3: and magnetizing the preset magnetizing position of the carbon fiber composite core 2 by using an automatic magnetizing device to obtain the magnetic composite core body 1.
The working principle and the beneficial effects of the technical scheme are as follows: when the magnetic composite material core body 1 is prepared, firstly, the carbon fiber composite core 2 is prepared, the carbon fiber composite core 2 is any one of a rod type or a stranded type, the rod type carbon fiber composite core 2 is prepared from a single large-diameter carbon fiber core rod 5, the stranded type carbon fiber composite core 2 is prepared from a carbon fiber bundle 6 formed by stranding a plurality of carbon fiber wires, the carbon fiber composite core 2 is prepared from epoxy resin, magnetic powder and carbon fiber pultrusion, then aluminum wires are stranded on the outer surface of the carbon fiber composite core 2 to prepare an aluminum wire conducting layer 3, finally, the carbon fiber composite core 2 with the corresponding length is selected according to the length of a strain clamp required to be installed, the preset magnetizing position of the carbon fiber composite core 2 is determined according to the corresponding length, and the preset magnetizing position is magnetized by a magnetizing machine, so that the mounting position of the strain clamp of the carbon fiber composite core 2 is magnetized, the prepared magnetic composite core body 1, the preset magnetizing position of the carbon fiber composite core 2 corresponds to the mounting position of the strain clamp, the preset magnetizing position of the carbon fiber composite core 2 is kept consistent with the length of the strain clamp to be mounted, the carbon fiber composite core 2 can not be directly inspected by the existing strain clamp, the existing strain clamp can not be inspected, and the whole quality inspection can not be realized by the existing strain clamp can be directly inspected by the carbon fiber composite wire inspection process, and the existing strain clamp can not be directly inspected by the carbon fiber inspection 2, and the test can be directly and the inspection can be directly inspected by the carbon fiber inspection by the carbon fiber has the existing inspection effect by the carbon fiber core 2, timely detecting the crimping defect.
Example 4
On the basis of example 3, in the step 1, the preparation method of the carbon fiber composite core 2 includes the steps of:
step 11: firstly, uniformly mixing magnetic powder and liquid epoxy resin to prepare an epoxy resin composition;
step 12: injecting the epoxy resin composition into a dipping tank of a pultrusion device;
step 13: carrying out pultrusion on the carbon fiber through a gum dipping tank to obtain a single-strand carbon fiber wire;
step 14: the carbon fiber bundles 6 are produced by stranding a plurality of carbon fiber filaments by a stranding machine, thereby producing a stranded carbon fiber composite core 2.
The working principle and the beneficial effects of the technical scheme are as follows: preferably, when preparing the stranded carbon fiber composite core 2, firstly uniformly mixing magnetic powder and liquid epoxy resin to prepare an epoxy resin composition, then injecting the epoxy resin composition into a dipping tank of a pultrusion device, then carrying out pultrusion molding on carbon fibers through the dipping tank by using the pultrusion device to prepare single strand carbon fiber filaments, and finally stranding a plurality of carbon fiber filaments through a stranding machine to prepare carbon fiber bundles 6, thereby preparing the stranded carbon fiber composite core 2;
the preparation of the rod-shaped carbon fiber composite core 2 is similar to the preparation method of the stranded core carbon fiber composite core 2, except that the diameters in the pultrusion process are different, and the stranded carbon fiber composite core 2 is not needed, and the specific preparation method comprises the following steps: the magnetic powder and the liquid epoxy resin are uniformly mixed to prepare an epoxy resin composition, the epoxy resin composition is injected into a gum dipping tank of a pultrusion device, and then the carbon fiber is subjected to pultrusion molding through the gum dipping tank by the pultrusion device to prepare a single large-diameter carbon fiber core rod 5.
Example 5
On the basis of embodiment 4, as shown in fig. 5, the automatic magnetizing device comprises a magnetizing box 7, a magnetizing machine 8 is slidably arranged on the inner wall of the upper end of the magnetizing box 7, a magnetizing head 9 is arranged at the output end of the magnetizing machine 8, and the output end of the magnetizing head 9 faces the outer wall of the aluminum wire conducting layer 3.
The working principle and the beneficial effects of the technical scheme are as follows: the automatic magnetizing device comprises a magnetizing box 7 for providing space for magnetizing operation, a magnetizing machine 8 is arranged on the inner wall of the upper end of the magnetizing box 7 in a sliding mode, the magnetizing machine 8 is a suspension type magnetizing machine, the magnetizing machine 8 can slide left and right at the upper end of the magnetizing box 7 through matching of a track and a pulley, the position of the magnetizing machine 8 is convenient to adjust, a magnetizing head 9 is arranged at the output end of the magnetizing machine 8, the magnetizing machine 8 can align with the outer wall of the aluminum wire conducting layer 3 by utilizing the magnetizing head 9, and the preset magnetizing position of the carbon fiber composite core 2 is uniformly and completely magnetized.
Example 6
On the basis of embodiment 5, as shown in fig. 5-9, a fixing component is disposed in the magnetizing box 7, and the fixing component is used for fixing the carbon fiber composite core 2 in the magnetizing box 7, and the fixing component includes:
the two clamping plates 10 are symmetrically arranged at the left side and the right side of the carbon fiber composite core 2, and one side, close to each other, of each clamping plate 10 is respectively abutted against the carbon fiber composite core 2;
The sliding column 11 is fixedly arranged at one end, far away from the carbon fiber composite core 2, of the clamping plate 10, and a fixed key is fixedly arranged on the outer wall of the sliding column 11;
the sliding sleeve 12 is sleeved on the outer wall of the sliding column 11, a sliding groove is formed in the inner wall of the sliding sleeve 12 and is matched with the fixed key, the fixed key is in sliding connection with the sliding groove, the inner wall of the sliding sleeve 12 is in sliding connection with the outer wall of the sliding column 11, a first spring 13 is arranged in the sliding sleeve 12, one end of the first spring 13 is fixedly connected with the inner wall of the sliding sleeve 12, and the other end of the first spring 13 is fixedly connected with one end, far away from the clamping plate 10, of the sliding column 11;
the circular plate 14 is fixedly arranged at one end, far away from the clamping plate 10, of the sliding sleeve 12, a first bearing 15 is arranged on the periphery of the circular plate 14, and the inner ring of the first bearing 15 is fixedly connected with the periphery of the circular plate 14;
the spline housing 16, one end of the spline housing 16 is fixedly connected with one end of the circular plate 14, which is far away from the sliding sleeve 12, the other end of the spline housing 16 is provided with a spline shaft 17, the outer wall of the spline shaft 17 is slidably connected with the inner wall of the spline housing 16, one end of the spline shaft 17, which is far away from the spline housing 16, on the left side is provided with a first motor 18, the first motor 18 is fixedly arranged on the left inner wall of the magnetizing box 7, the output end of the first motor 18 is fixedly connected with one end, which is far away from the spline shaft 17, on the left side, of the spline shaft 17, which is far away from the spline housing 16, is rotatably connected with the right inner wall of the magnetizing box 7, the outer circumference of the spline housing 16, on the left side, is provided with a second bearing 19, and the inner ring of the second bearing 19 is fixedly connected with the outer circumference of the spline housing 16;
The first fixing ring 20 is sleeved on the outer wall of the first bearing 15, the inner wall of the first fixing ring 20 is fixedly connected with the outer wall of the first bearing 15, and a first connecting rod 21 is fixedly arranged at the lower end of the first fixing ring 20;
the second fixing ring 22 is sleeved on the outer wall of the second bearing 19, the inner wall of the second fixing ring 22 is fixedly connected with the outer wall of the second bearing 19, and a second connecting rod 23 is fixedly arranged at the lower end of the second fixing ring 22;
the first sliding rail 24 is fixedly arranged on the inner wall of the bottom of the magnetizing box 7, a first sliding block 25 and a second sliding block 26 are sequentially arranged on the first sliding rail 24 from right to left, the first sliding block 25 and the second sliding block 26 are respectively in sliding connection with the first sliding rail 24, a first electric telescopic rod 27 is fixedly arranged at the upper end of the first sliding block 25, the left end and the right end of the first electric telescopic rod 27 are respectively fixedly connected with the lower ends of the first connecting rods 21 on the two sides, and the upper end of the second sliding block 26 is fixedly connected with the lower ends of the second connecting rods 23;
the sliding rod 28 is fixedly arranged at the left end of the second sliding block 26, a sleeve 29 is sleeved at one end of the sliding rod 28 far away from the second sliding block 26, the sliding rod 28 is in sliding connection with the inner wall of the sleeve 29, one end of the sleeve 29 far away from the second sliding block 26 is fixedly connected with the left inner wall of the magnetizing box 7, a second spring 30 is arranged in the sleeve 29, one end of the second spring 30 is fixedly connected with one end of the sliding rod 28 far away from the second sliding block 26, and the other end of the second spring 30 is fixedly connected with the left inner wall of the magnetizing box 7;
A first bevel gear 31, the first bevel gear 31 being fixedly provided on the spline shaft 17 on the left side;
the first rotating shaft 32 is arranged behind the spline shaft 17, the rear end of the first rotating shaft 32 is rotationally connected with the inner wall of the rear side of the magnetizing box 7, a second bevel gear 33 and a first belt pulley 34 are sequentially arranged on the first rotating shaft 32 from front to back, and the second bevel gear 33 is meshed with the first bevel gear 31;
the second rotating shaft 35 is arranged below the first rotating shaft 32, the rear end of the second rotating shaft 35 is rotationally connected with the inner wall of the rear side of the magnetizing box 7, a first gear 36 and a second belt pulley 37 are sequentially arranged on the second rotating shaft 35 from front to back, the first gear 36 is an incomplete gear, and the second belt pulley 37 is in transmission connection with the first belt pulley 34 through a first transmission belt 38;
the rectangular frame 39 is sleeved outside the first gear 36, first racks 40 are symmetrically arranged on the inner walls of the left side and the right side of the rectangular frame 39, the first racks 40 are symmetrically arranged on the left side and the right side of the first gear 36, and the first gear 36 is intermittently meshed with the first racks 40;
the second sliding rail 41 is vertically and fixedly arranged on the left inner wall of the magnetizing box 7, a third sliding block 42 is arranged on the second sliding rail 41 in a sliding manner, a third connecting rod 43 is arranged between the third sliding block 42 and the rectangular frame 39, one end of the third connecting rod 43 is fixedly connected with the right side wall of the third sliding block 42, and the other end of the third connecting rod 43 is fixedly connected with the left side wall of the rectangular frame 39;
A fixing plate 44, wherein the fixing plate 44 is fixedly arranged on the right side wall of the rectangular frame 39;
the inclined plate 45 is obliquely arranged on the right side of the fixed plate 44, the lower end of the inclined plate 45 is hinged with the lower end of the fixed plate 44, and a fourth sliding block 46 is slidably arranged on one side of the inclined plate 45 close to the fixed plate 44;
a second electric telescopic rod 47, wherein the second electric telescopic rod 47 is arranged between the fixed plate 44 and the inclined plate 45, one end of the second electric telescopic rod 47 is fixedly connected with the right side wall of the fixed plate 44, and the other end of the second electric telescopic rod 47 is hinged with the side wall of the fourth sliding block 46;
the dead lever 48, the dead lever 48 is fixed to be set up the left side wall of second connecting rod 23, the dead lever 48 perpendicular to second connecting rod 23, dead lever 48 keeps away from second connecting rod 23 one end sets up gyro wheel 49, gyro wheel 49 keep away from dead lever 48 one end with swash plate 45 right side wall butt.
The working principle and the beneficial effects of the technical scheme are as follows: in order to accurately and uniformly magnetize the position of the mounting strain clamp, the invention also provides a fixing component, when the mounting strain clamp is used, the position of the mounting strain clamp for the carbon fiber composite core 2 is selected, the preset magnetizing position is determined according to the length of the strain clamp, then the selected carbon fiber composite core 2 with the aluminum wire conducting layer 3 is clamped by utilizing two clamping plates 10 according to the preset magnetizing position, the clamping degree of the carbon fiber composite core 2 can be improved through a first spring 13, the carbon fiber composite core 2 is protected, the clamping injury of the carbon fiber composite core 2 is avoided, the distance between two first connecting rods 21 can be adjusted by controlling the expansion and contraction of a first electric telescopic rod 27, the two first connecting rods 21 can adjust the distance between the two clamping plates 10 through a first fixing ring 20, so that the length of the selected carbon fiber composite core 2 is adapted, the applicability of the fixing component is improved, after the selected carbon fiber composite core 2 is clamped, the selected carbon fiber composite core 2 is positioned right below a magnetic head 9, a first motor 18 is started, the first motor 18 rotates to drive a spline shaft 17 on the left side to rotate, a spline shaft 17 on the left side to drive a spline shaft 16 to rotate, a bevel gear sleeve 16 is driven by a spline shaft 16 on the left side to drive a spline shaft 12 to rotate, the spline shaft 12 is driven by a spline shaft 12 on the spline shaft 11 to rotate, the spline shaft is driven by a sliding sleeve 12 to rotate, the spline shaft 12 is driven by the spline shaft 11 to rotate, and the spline shaft 12 rotates the spline shaft is driven by the spline shaft 2 to rotate, and the spline shaft 11 rotates and the carbon fiber composite core 2 rotates and the spline shaft 11 rotates and rotates the spline shaft 11. The second bevel gear 33 rotates to drive the first rotating shaft 32 to rotate, the first rotating shaft 32 rotates to drive the first belt pulley 34 to rotate, the first belt pulley 34 drives the second belt pulley 37 to rotate through the first transmission belt 38, the second belt pulley 37 drives the second rotating shaft 35 to rotate, the second rotating shaft 35 drives the first gear 36 to rotate, the first gear 36 is an incomplete gear, the first gears 36 can be meshed with the first racks 40 on two sides respectively when rotating, thereby driving the rectangular frame 39 to reciprocate up and down, the rectangular frame 39 moves to drive the fixing plate 44 to reciprocate up and down, the fixing plate 44 drives the inclined plate 45 to reciprocate up and down, the roller 49 is always abutted with the right side wall of the inclined plate 45 under the action of the second spring 30, the second connecting rod 23 drives the second fixing ring 22 to reciprocate left and right along with the up and down reciprocation of the inclined plate 45, the second sliding block 26 reciprocates left and right on the first sliding rail 24, the second fixing ring 22 drives the left spline housing 16 to slide left and right on the spline shaft 17, the spline housing 16 can drive the carbon fiber composite core 2 to reciprocate left and right under the magnetizing head 9 through the combined action of the circular plate 14, the sliding sleeve 12 and the clamping plate 10, so that all preset magnetizing positions of the carbon fiber composite core 2 can be magnetized axially, the selected carbon fiber composite core 2 has uniform left and right reciprocating motion speed, magnetic powder in the carbon fiber composite core 2 can be fully magnetized through repeated reciprocating motions, the magnetism in the carbon fiber composite core 2 is more uniform and reliable after magnetizing, the magnetizing effect is improved, the magnetizing omission can be avoided, the magnetic strength of the magnetizing positions can be easily preset, the magnetizing effect is improved, the inclination degree of the inclined plate 45 can be controlled through controlling the expansion and contraction of the second electric telescopic rod 47, therefore, the included angle between the inclined plate 45 and the fixed plate 44 is selected according to the length of the selected carbon fiber composite core 2, so that the magnetization is more accurate, the redundant length is not magnetized, the electric energy of the magnetizer 8 is saved, the magnetization effect is improved, because the carbon fiber composite core 2 is longer, the position where the carbon fiber composite core 2 is not magnetized is bent and coiled on the placing plate 62 arranged at the rear end of the clamping plate 10, then the coiled carbon fiber composite core 2 is fixed with the placing plate 62, so that when the selected carbon fiber composite core 2 rotates, the position where the carbon fiber composite core 2 is not magnetized does not interfere with the magnetization process, the magnetization quality is improved, the uniformity and uniformity of the magnetization position of the magnetic composite core body 1 are ensured, the automatic magnetization of the carbon fiber composite core 2 can be realized through the fixing component, thereby manufacturing the magnetic composite material core body 1, after the strain fitting is installed, the flaw detection of the carbon fiber composite core 2 at the strain fitting is realized by utilizing the magnetic powder inspection, the problems that the existing carbon fiber composite wires do not contain magnetism, after the strain fitting is installed, the flaw detection of the carbon fiber composite wires at the strain fitting cannot be directly carried out through the existing X-ray detection technology due to the blocking of the strain fitting are solved, in addition, the automatic reciprocating magnetization of the preset magnetization position is realized through the fixing component, the manual magnetization is replaced, the omission is avoided in the manual magnetization process, the automatic magnetization improves the magnetization quality, the magnetic distribution of the carbon fiber composite core 2 is more uniform, reliable and unified, the automation degree of the preparation of the magnetic composite material core body 1 is improved, the automatic magnetization improves the magnetization efficiency, the labor intensity of workers is reduced.
Example 7
On the basis of embodiment 5 or 6, as shown in fig. 10 and 11, a coating assembly is further disposed in the magnetizing box 7, and the coating assembly is used for spraying a magnetic powder solution on the outer wall of the aluminum wire conductive layer 3 and curing the magnetic powder solution, and the coating assembly includes:
the third electric telescopic rod 50 is fixedly arranged at the lower end of the magnetizer 8, the lower end of the third electric telescopic rod 50 is fixedly provided with a spraying machine 51, and the lower end of the spraying machine 51 is matched with the outer wall of the upper end of the aluminum wire conducting layer 3;
the second motor 52 is arranged on the inner wall of the rear side of the magnetizing box 7, a third rotating shaft 53 is fixedly arranged at the output end of the second motor 52, a second gear 54 is fixedly arranged at the front end of the third rotating shaft 53, and the second gear 54 is a semicircular gear;
a fourth rotating shaft 55, wherein the fourth rotating shaft 55 is arranged on the right side of the third rotating shaft 53, the rear end of the fourth rotating shaft 55 is rotatably connected with the inner wall of the rear side of the magnetizing box 7, a third gear 56 and a fourth gear 57 are fixedly arranged on the fourth rotating shaft 55 from front to back in sequence, and the fourth gear 57 is in clearance engagement with the second gear 54;
the two second racks 58 are respectively arranged at the upper side and the lower side of the third gear 56, the two second racks 58 are distributed in a central symmetry manner about the axis of the fourth rotating shaft 55, and one side of the second racks 58 close to the third gear 56 is meshed with the third gear 56;
The two arc-shaped mounting plates 59 are symmetrically arranged on the left side and the right side of the third gear 56, the arc-shaped mounting plates 59 are positioned behind the aluminum wire conducting layer 3, one side of each arc-shaped mounting plate 59, which is close to the aluminum wire conducting layer 3, is arranged into an arc shape and is matched with the rear side wall of the aluminum wire conducting layer 3, one side, which is close to the aluminum wire conducting layer 3, of each arc-shaped mounting plate 59 is provided with a plurality of heating strips, and one side, which is close to the second rack 58, of each arc-shaped mounting plate 59 is fixedly connected with one end of the second rack 58;
the third spring 60 is horizontally arranged between the arc-shaped mounting plate 59 and the second rack 58, one end of the third spring 60 is fixedly connected with the side wall of the arc-shaped mounting plate 59, and the other end of the third spring 60 is fixedly connected with one end, away from the arc-shaped mounting plate 59, of the second rack 58;
the sliding plate 61, the fixed setting of sliding plate 61 is in the arc mounting panel 59 rear side wall, the sliding plate 61 keep away from arc mounting panel 59 one end with the left and right sliding connection of charging box 7 rear side inner wall.
The working principle and the beneficial effects of the technical scheme are as follows: the magnetizing box 7 is internally provided with a smearing component which is used for spraying magnetic powder solution to the outer wall of the aluminum wire conducting layer 3 and rapidly solidifying the magnetic powder solution, so that the magnetizing effect is improved, the follow-up flaw detection is convenient, in the specific use process, before the magnetizing machine 8 is started, the spraying machine 51 starts to spray the magnetic powder solution at a preset magnetizing position along the axial direction of the aluminum wire conducting layer 3, thereby manufacturing a magnetic powder layer with preset thickness on the outer wall of the aluminum wire conducting layer 3, the stretching length of the third electric telescopic rod 50 is adjusted according to the preset thickness of the magnetic powder layer, the distance from the outer wall of the aluminum wire conducting layer 3 to the lower surface of the spraying machine 51 is equal to the preset thickness of the magnetic powder layer, then the magnetic powder solution is adhered to the outer wall of the aluminum wire conducting layer 3 along with the spraying of the spraying machine 51, meanwhile, the second motor 52 is started to rotate to drive the third rotating shaft 53 to rotate, the third rotating shaft 53 rotates to drive the second gear 54 to rotate, the gap is meshed with the fourth gear 57 when the second gear 54 rotates, when the second gear 54 is meshed with the fourth gear 57, the second gear 54 rotates to drive the fourth gear 57 to rotate, the fourth gear 57 rotates to drive the fourth rotating shaft 55 to rotate, the fourth rotating shaft 55 rotates to drive the third gear 56 to rotate, the third gear 56 rotates to drive the second racks 58 to move in the directions away from each other, the two second racks 58 drive the two arc-shaped mounting plates 59 to move in the directions away from each other, the sliding plate slides on the rear side wall of the magnetizing box 7, the third spring 60 stretches, after the second gear 54 and the fourth gear 57 are meshed, the two arc-shaped mounting plates 59 move in the directions close to each other under the action of the third spring 60 to realize the left-right reciprocating movement of the arc-shaped mounting plates 59, and at the same time the arc-shaped mounting plates 59 move, the heating strip that arc mounting panel 59 cambered surface side set up can be to the magnetic powder solution heating on aluminum wire conducting layer 3 surface to accelerate the solidification of magnetic powder solution, improve the preparation efficiency of magnetic powder layer, through the reciprocating motion of arc mounting panel 59, the heating range of heating strip has been increased, on the one hand, can preheat for aluminum wire conducting layer 3 surface, improve the temperature on aluminum wire conducting layer 3 surface, be convenient for the attachment of magnetic powder solution, on the other hand, can heat the magnetic powder solution of spraying on aluminum wire conducting layer 3 surface, the preparation of magnetic powder layer has been accelerated, improve production efficiency, through the preparation of magnetic powder layer in predetermineeing the magnetization position, after the preparation of magnetic powder layer is accomplished, the magnetic powder layer of the outer wall of aluminum wire conducting layer 3 and the predetermineeing of carbon fiber composite core 2 are magnetized jointly by the magnetizer 8, the inside magnetic powder of the carbon fiber composite core 2 of predetermineeing magnetization position department and the layer of aluminum wire conducting layer 3 have magnetism jointly, can reduce the aluminum wire conducting layer 3 to the carbon fiber composite core 2 and stop the magnetization influence that causes, the magnetic material of predetermineeing magnetization position, thereby the magnetic powder inspection machine is used to carry out the more accurate quality of the composite material 1 when inspecting, and further guaranteeing the more accurate quality of the inspection.
Example 8
The base of any of embodiments 6-7, further comprising an automatic adjustment assembly comprising:
a first ranging sensor provided at a sidewall of the clamping plate 10 for detecting an actual distance between the two clamping plates 10;
the second distance measuring sensor is fixedly arranged on the right side wall of the fixed plate 44, the lower end of the second distance measuring sensor is attached to the upper end of the second electric telescopic rod 47, and the second distance measuring sensor is used for detecting the actual horizontal distance from the output end of the second distance measuring sensor to the inclined plate 45;
the controller is arranged on the outer wall of the magnetizing box 7 and is electrically connected with the first ranging sensor, the second ranging sensor and the second electric telescopic rod 47 respectively;
the controller controls the second electric telescopic rod 47 to operate based on the detection value of the first distance measuring sensor, and the method comprises the following steps:
step 51: based on the detection value of the first ranging sensor, the target horizontal distance from the second ranging sensor output to the swash plate 45 is calculated by formula (1):
wherein L is 3 L is the target horizontal distance from the output end of the second distance measuring sensor to the sloping plate 45 1 R is the actual distance between the two splints 10 detected by the first distance measuring sensor 1 For the cross-sectional radius, h, of the carbon fiber composite core 2 3 For the preset thickness H of the aluminum wire conductive layer 3 2 H is the vertical distance from the connection position of the second distance measuring sensor and the fixed plate 44 to the lower end of the fixed plate 44 1 L is the height of the fixed plate 44 2 A body length for the second ranging sensor;
step 52: based on the calculation result of the formula (1) and the detection value of the second distance measuring sensor, the target movement length of the second electric telescopic link 47 is calculated by the formula (2):
where Lm is a target movement length of the second electric telescopic link 47, H 4 L is the vertical distance from the left end of the second electric telescopic rod 47 to the lower end of the fixed plate 44 4 An actual horizontal distance from the output end of the second distance measuring sensor to the sloping plate 45, which is detected by the second distance measuring sensor;
step 53: based on the calculation result of the formula (2), the controller controls the second electric telescopic link 47 to move, and when the actual movement length of the second electric telescopic link 47 reaches the target movement length, the controller controls the second electric telescopic link 47 to stop moving.
The working principle and the beneficial effects of the technical scheme are as follows: in order to realize the automatic adjustment of the second electric telescopic rod 47, the present solution provides an automatic adjustment assembly for automatically telescoping the second electric telescopic rod 47 through a controller according to the length of the carbon fiber composite core 2 between the two clamping plates 10, so as to realize the control of the horizontal moving distance of the two clamping plates 10 according to the length of the carbon fiber composite core 2, and realize the automatic matching, the automatic adjustment assembly comprises a first ranging sensor for detecting the actual distance between the two clamping plates 10, and according to the detection value of the first ranging sensor, the target horizontal distance from the output end of the second ranging sensor to the sloping plate 45 can be calculated through formula (1), after the clamping plates 10 clamp the carbon fiber composite core 2, since the carbon fiber composite core 2 only needs to be magnetized at the preset magnetizing position, the magnetizing length of the carbon fiber composite core 2 is the distance between the two clamping plates 10 minus the two diameter lengths of the carbon fiber composite core 2, thereby accurately calculating the target horizontal distance from the output end of the second ranging sensor to the swash plate 45, according to the calculation result of the formula (1) and the detection value of the second ranging sensor, the target movement length of the second electric telescopic rod 47 can be calculated through the formula (2), specifically, when the target movement length of the second electric telescopic rod 47 is positive, the controller controls the second electric telescopic rod 47 to extend out of the target movement length, when the target movement length of the second electric telescopic rod 47 is negative, the controller controls the second electric telescopic rod 47 to retract into the target movement length so as to correspond to the length of the carbon fiber composite core 2 between the two clamping plates 10, the controller can realize automatic telescopic adjustment of the second electric telescopic rod 47 without manual adjustment, and the adjustment is more accurate, thereby improving the automation degree of the preparation process and the preparation efficiency of the magnetic composite material core body 1.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. A magnetic composite core for a composite core overhead conductor, comprising: the magnetic composite material core body (1), the magnetic composite material core body (1) comprises a carbon fiber composite core (2) and an aluminum wire conducting layer (3), magnetic powder is arranged inside the carbon fiber composite core (2), the aluminum wire conducting layer (3) is arranged outside the carbon fiber composite core (2),
through setting up magnetic powder in carbon fiber composite core (2), during initial state, carbon fiber composite core (2) is whole not to have magnetism, before the installation strain insulator gold utensil, the length of magnetizing of carbon fiber composite core (2) is selected according to the length of strain insulator gold utensil, then the preset position of magnetizing of carbon fiber composite core (2) is selected according to the length of magnetizing, and utilize the magnetizer to magnetize the preset position of magnetizing of carbon fiber composite core (2), make carbon fiber composite core (2) and strain insulator gold utensil mounted position have magnetism, after the strain insulator gold utensil is installed, utilize the magnetic powder inspection machine alright carry out the magnetic leakage detection to carbon fiber composite core (2) of strain insulator gold utensil department.
2. The magnetic composite core for composite core overhead conductors according to claim 1, characterized in that the carbon fiber composite core (2) is any one of a single large-diameter carbon fiber core rod (5) or a carbon fiber bundle (6) formed by twisting a plurality of carbon fiber filaments.
3. A magnetic composite core for a composite core overhead conductor according to claim 1, characterized in that the carbon fiber composite core (2) has any one of a circular or oval cross section.
4. A magnetic composite core for composite core overhead conductors according to claim 1, characterized in that the aluminium wire conductive layer (3) is provided in at least two layers, the aluminium wire conductive layer (3) being formed by twisting several aluminium conductors.
5. The magnetic composite core for composite core overhead conductors according to claim 4, wherein the aluminum conductor has a Z-shaped or trapezoidal cross section, and both the inner wall and the outer wall of the aluminum conductor are cambered surfaces.
6. A method for preparing a magnetic composite core for a composite core overhead conductor, for preparing a magnetic composite core for a composite core overhead conductor according to any one of claims 1 to 5, comprising the steps of:
Step 1: preparing a carbon fiber composite core (2), wherein the carbon fiber composite core (2) is prepared from epoxy resin, magnetic powder and carbon fiber;
step 2: twisting aluminum wires on the outer wall of the carbon fiber composite core (2) to manufacture an aluminum wire conducting layer (3);
step 3: magnetizing the preset magnetizing position of the carbon fiber composite core (2) by using an automatic magnetizing device to prepare a magnetic composite core body (1),
in the step 1, the preparation method of the carbon fiber composite core (2) comprises the following steps:
step 11: firstly, uniformly mixing magnetic powder and liquid epoxy resin to prepare an epoxy resin composition;
step 12: injecting the epoxy resin composition into a dipping tank of a pultrusion device;
step 13: carrying out pultrusion on the carbon fiber through a gum dipping tank to obtain a single-strand carbon fiber wire;
step 14: and stranding a plurality of carbon fiber wires by a stranding machine to obtain a carbon fiber bundle (6), thereby obtaining the stranded carbon fiber composite core (2).
7. The preparation method of the magnetic composite material core for the composite material core overhead conductor according to claim 6, wherein the automatic magnetizing device comprises a magnetizing box (7), a magnetizing machine (8) is slidably arranged on the inner wall of the upper end of the magnetizing box (7), a magnetizing head (9) is arranged at the output end of the magnetizing machine (8), and the output end of the magnetizing head (9) faces the outer wall of the aluminum wire conducting layer (3).
8. The method for preparing a magnetic composite core for a composite core overhead conductor according to claim 7, wherein a fixing component is arranged in the magnetizing box (7), the fixing component is used for fixing the carbon fiber composite core (2) in the magnetizing box (7), and the fixing component comprises:
the two clamping plates (10) are symmetrically arranged at the left side and the right side of the carbon fiber composite core (2), and one side, close to each other, of each clamping plate (10) is respectively abutted against the carbon fiber composite core (2);
the sliding column (11) is fixedly arranged at one end, far away from the carbon fiber composite core (2), of the clamping plate (10), and a fixed key is fixedly arranged on the outer wall of the sliding column (11);
the sliding sleeve (12), the sliding sleeve (12) is sleeved on the outer wall of the sliding column (11), a sliding groove is formed in the inner wall of the sliding sleeve (12), the sliding groove is matched with the fixed key, the fixed key is in sliding connection with the sliding groove, the inner wall of the sliding sleeve (12) is in sliding connection with the outer wall of the sliding column (11), a first spring (13) is arranged in the sliding sleeve (12), one end of the first spring (13) is fixedly connected with the inner wall of the sliding sleeve (12), and the other end of the first spring (13) is fixedly connected with one end, far away from the clamping plate (10), of the sliding column (11);
The circular plate (14) is fixedly arranged at one end, far away from the clamping plate (10), of the sliding sleeve (12), a first bearing (15) is arranged on the periphery of the circular plate (14), and the inner ring of the first bearing (15) is fixedly connected with the periphery of the circular plate (14);
the spline housing (16), spline housing (16) one end with plectane (14) keep away from sliding sleeve (12) one end fixed connection, spline housing (16) other end sets up spline shaft (17), spline shaft (17) outer wall with spline housing (16) inner wall sliding connection, spline shaft (17) on the left side keep away from spline housing (16) one end sets up first motor (18), first motor (18) fixed setting is in magnetizing box (7) left side inner wall, first motor (18) output with spline shaft (17) on the left side keep away from spline housing (16) one end fixed connection, spline shaft (17) on the right side keep away from spline housing (16) one end with magnetizing box (7) right side inner wall swivelling joint, second bearing (19) are established to spline housing (16) periphery cover on the left side, second bearing (19) inner circle and spline housing (16) periphery fixed connection;
the first fixing ring (20), the first fixing ring (20) is sleeved on the outer wall of the first bearing (15), the inner wall of the first fixing ring (20) is fixedly connected with the outer wall of the first bearing (15), and a first connecting rod (21) is fixedly arranged at the lower end of the first fixing ring (20);
The second fixing ring (22) is sleeved on the outer wall of the second bearing (19), the inner wall of the second fixing ring (22) is fixedly connected with the outer wall of the second bearing (19), and a second connecting rod (23) is fixedly arranged at the lower end of the second fixing ring (22);
the first sliding rail (24), the first sliding rail (24) is fixedly arranged on the inner wall of the bottom of the magnetizing box (7), a first sliding block (25) and a second sliding block (26) are sequentially arranged on the first sliding rail (24) from right to left, the first sliding block (25) and the second sliding block (26) are respectively and slidably connected with the first sliding rail (24), a first electric telescopic rod (27) is fixedly arranged at the upper end of the first sliding block (25), the left end and the right end of the first electric telescopic rod (27) are respectively and fixedly connected with the lower ends of the first connecting rods (21) on the two sides, and the upper end of the second sliding block (26) is fixedly connected with the lower ends of the second connecting rods (23);
the sliding rod (28), the sliding rod (28) is fixedly arranged at the left end of the second sliding block (26), a sleeve (29) is sleeved at one end of the sliding rod (28) away from the second sliding block (26), the sliding rod (28) is in sliding connection with the inner wall of the sleeve (29), one end of the sleeve (29) away from the second sliding block (26) is fixedly connected with the left inner wall of the magnetizing box (7), a second spring (30) is arranged in the sleeve (29), one end of the second spring (30) is fixedly connected with one end of the sliding rod (28) away from the second sliding block (26), and the other end of the second spring (30) is fixedly connected with the left inner wall of the magnetizing box (7);
A first bevel gear (31), the first bevel gear (31) being fixedly arranged on the spline shaft (17) on the left side;
the first rotating shaft (32), the first rotating shaft (32) is arranged behind the spline shaft (17), the rear end of the first rotating shaft (32) is rotationally connected with the inner wall of the rear side of the magnetizing box (7), a second bevel gear (33) and a first belt pulley (34) are sequentially arranged on the first rotating shaft (32) from front to back, and the second bevel gear (33) is meshed with the first bevel gear (31);
the second rotating shaft (35), the second rotating shaft (35) is arranged below the first rotating shaft (32), the rear end of the second rotating shaft (35) is rotationally connected with the inner wall at the rear side of the magnetizing box (7), a first gear (36) and a second belt pulley (37) are sequentially arranged on the second rotating shaft (35) from front to back, the first gear (36) is an incomplete gear, and the second belt pulley (37) is in transmission connection with the first belt pulley (34) through a first transmission belt (38);
the rectangular frame (39), the rectangular frame (39) is sleeved outside the first gear (36), first racks (40) are symmetrically arranged on the inner walls of the left side and the right side of the rectangular frame (39), the first racks (40) are symmetrically arranged on the left side and the right side of the first gear (36), and the first gear (36) is intermittently meshed with the first racks (40);
The second sliding rail (41), the second sliding rail (41) is vertically and fixedly arranged on the inner wall of the left side of the magnetizing box (7), a third sliding block (42) is arranged on the second sliding rail (41) in a sliding manner, a third connecting rod (43) is arranged between the third sliding block (42) and the rectangular frame (39), one end of the third connecting rod (43) is fixedly connected with the right side wall of the third sliding block (42), and the other end of the third connecting rod (43) is fixedly connected with the left side wall of the rectangular frame (39);
the fixing plate (44) is fixedly arranged on the right side wall of the rectangular frame (39);
the inclined plate (45) is obliquely arranged on the right side of the fixed plate (44), the lower end of the inclined plate (45) is hinged with the lower end of the fixed plate (44), and a fourth sliding block (46) is arranged on one side, close to the fixed plate (44), of the inclined plate (45) in a sliding manner;
the second electric telescopic rod (47) is arranged between the fixed plate (44) and the inclined plate (45), one end of the second electric telescopic rod (47) is fixedly connected with the right side wall of the fixed plate (44), and the other end of the second electric telescopic rod (47) is hinged with the side wall of the fourth sliding block (46);
the dead lever (48), dead lever (48) are fixed to be set up second connecting rod (23) left side wall, dead lever (48) perpendicular to second connecting rod (23), dead lever (48) are kept away from second connecting rod (23) one end sets up gyro wheel (49), gyro wheel (49) are kept away from dead lever (48) one end with swash plate (45) right side wall butt.
9. A method of preparing a magnetic composite core for a composite core overhead conductor according to claim 7, characterized in that a painting assembly is further provided in the magnetizing box (7), the painting assembly being used for spraying and curing a magnetic powder solution on the outer wall of the aluminum wire conductive layer (3), the painting assembly comprising:
the third electric telescopic rod (50) is fixedly arranged at the lower end of the magnetizing machine (8), a spraying machine (51) is fixedly arranged at the lower end of the third electric telescopic rod (50), and a spray head at the lower end of the spraying machine (51) is matched with the outer wall of the upper end of the aluminum wire conducting layer (3);
the second motor (52), the second motor (52) is arranged on the inner wall of the rear side of the magnetizing box (7), a third rotating shaft (53) is fixedly arranged at the output end of the second motor (52), a second gear (54) is fixedly arranged at the front end of the third rotating shaft (53), and the second gear (54) is a semicircular gear;
the fourth rotating shaft (55), the fourth rotating shaft (55) is arranged on the right side of the third rotating shaft (53), the rear end of the fourth rotating shaft (55) is rotationally connected with the inner wall of the rear side of the magnetizing box (7), a third gear (56) and a fourth gear (57) are sequentially and fixedly arranged on the fourth rotating shaft (55) from front to back, and the fourth gear (57) is in clearance engagement with the second gear (54);
The two second racks (58) are respectively arranged on the upper side and the lower side of the third gear (56), the two second racks (58) are distributed in a central symmetry mode relative to the axis of the fourth rotating shaft (55), and one side, close to the third gear (56), of the second racks (58) is meshed with the third gear (56);
the two arc-shaped mounting plates (59), the two arc-shaped mounting plates (59) are symmetrically arranged on the left side and the right side of the third gear (56), the arc-shaped mounting plates (59) are positioned behind the aluminum wire conducting layer (3), one side, close to the aluminum wire conducting layer (3), of each arc-shaped mounting plate (59) is arranged to be arc-shaped and is matched with the rear side wall of the aluminum wire conducting layer (3), a plurality of heating strips are arranged on one side, close to the aluminum wire conducting layer (3), of each arc-shaped mounting plate (59), and one side, close to the second rack (58), of each arc-shaped mounting plate (59) is fixedly connected with one end of the second rack (58);
the third spring (60) is horizontally arranged between the arc-shaped mounting plate (59) and the second rack (58), one end of the third spring (60) is fixedly connected with the side wall of the arc-shaped mounting plate (59), and the other end of the third spring (60) is fixedly connected with one end, away from the arc-shaped mounting plate (59), of the second rack (58);
The sliding plate (61), the fixed setting of sliding plate (61) is in arc mounting panel (59) back lateral wall, sliding plate (61) keep away from arc mounting panel (59) one end with the left and right sliding connection of magnetizing box (7) rear side inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210624272.3A CN114927262B (en) | 2022-06-02 | 2022-06-02 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210624272.3A CN114927262B (en) | 2022-06-02 | 2022-06-02 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114927262A CN114927262A (en) | 2022-08-19 |
| CN114927262B true CN114927262B (en) | 2023-10-31 |
Family
ID=82813601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210624272.3A Active CN114927262B (en) | 2022-06-02 | 2022-06-02 | Magnetic composite material core for composite material core overhead conductor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114927262B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116313239B (en) * | 2023-04-28 | 2023-10-03 | 广东鑫源恒业电力线路器材有限公司 | Super-flexible multi-strand combined carbon fiber composite core wire and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10177010A (en) * | 1996-12-18 | 1998-06-30 | Hitachi Ltd | Damage detection method |
| CN101806774A (en) * | 2009-02-17 | 2010-08-18 | 射阳县赛福探伤设备制造有限公司 | Method for compound magnetic powder flaw detection |
| CN103308594A (en) * | 2012-03-16 | 2013-09-18 | 春兴铸造(苏州工业园区)有限公司 | Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
| CN113327714A (en) * | 2021-06-03 | 2021-08-31 | 广东鑫源恒业复合材料科技有限公司 | Tensile stranded carbon fiber composite core overhead conductor |
-
2022
- 2022-06-02 CN CN202210624272.3A patent/CN114927262B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10177010A (en) * | 1996-12-18 | 1998-06-30 | Hitachi Ltd | Damage detection method |
| CN101806774A (en) * | 2009-02-17 | 2010-08-18 | 射阳县赛福探伤设备制造有限公司 | Method for compound magnetic powder flaw detection |
| CN103308594A (en) * | 2012-03-16 | 2013-09-18 | 春兴铸造(苏州工业园区)有限公司 | Composite magnetic powder inspection method for aerial 7-series aluminum alloy surface |
| CN111180221A (en) * | 2020-01-06 | 2020-05-19 | 山东光韵智能科技有限公司 | Resin-based carbon fiber composite permanent magnet conductive contact and manufacturing method thereof |
| CN113327714A (en) * | 2021-06-03 | 2021-08-31 | 广东鑫源恒业复合材料科技有限公司 | Tensile stranded carbon fiber composite core overhead conductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114927262A (en) | 2022-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114927262B (en) | Magnetic composite material core for composite material core overhead conductor and preparation method thereof | |
| CN207114318U (en) | A kind of cable use for laboratory test of elongation rate instrument | |
| CN214262529U (en) | Cable steel band scribbles cream device | |
| CN209226289U (en) | A kind of nonmetallic ore Tetramune glass fibre yarn wrap-up | |
| CN209432913U (en) | A kind of cable circulating-heating controlling test measuring device | |
| CN205397746U (en) | Anticorrosive wind of steel pipe | |
| CN116424957A (en) | Cable winding counting device for power engineering | |
| CN209657900U (en) | A kind of insulating carbon fiber composite core rod preparation facilities | |
| CN110310785A (en) | Coaxial cable production technology | |
| CN109326390A (en) | A kind of chemical blowing extrusion processing technology and its production line | |
| CN210309115U (en) | Composite material conical telegraph pole winding machine | |
| CN211237813U (en) | Production line of storage battery line cable | |
| CN2319417Y (en) | High speed annealing tin-plating machine | |
| CN211205665U (en) | Car wiring harness compactness testing arrangement | |
| CN210665302U (en) | Indoor outer clavate tensile testing machine for insulator test | |
| CN220563961U (en) | Quick traction device | |
| CN208103539U (en) | A kind of cable unwinding device | |
| CN111710479A (en) | Cable core stranding surface pretreatment method | |
| CN220364161U (en) | Cable winding device | |
| CN109941823A (en) | A kind of dedicated receive silk machine wire drawing mechanism of efficient carbon fiber production | |
| CN205881575U (en) | Binding machine take -up | |
| CN206432083U (en) | One kind is used to draw energy-conserving and environment-protective cable conductor single line mould | |
| CN216957582U (en) | Power cable core stranded wire branching device | |
| CN215666346U (en) | Hard-face surfacing flux-cored welding wire winding device | |
| CN216736945U (en) | Electric wire winding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |