CN112037982A - Silicone rubber insulation high-temperature-resistant cable - Google Patents
Silicone rubber insulation high-temperature-resistant cable Download PDFInfo
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- CN112037982A CN112037982A CN202010914920.XA CN202010914920A CN112037982A CN 112037982 A CN112037982 A CN 112037982A CN 202010914920 A CN202010914920 A CN 202010914920A CN 112037982 A CN112037982 A CN 112037982A
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 74
- 238000009413 insulation Methods 0.000 title claims abstract description 12
- 239000004945 silicone rubber Substances 0.000 title claims description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 68
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000010445 mica Substances 0.000 claims abstract description 20
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000004698 Polyethylene Substances 0.000 claims abstract description 10
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 229920000573 polyethylene Polymers 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 28
- 238000001514 detection method Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 23
- 229920006306 polyurethane fiber Polymers 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000010073 coating (rubber) Methods 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
- H01B7/1815—Protections not provided for in groups H01B7/182 - H01B7/26 composed of longitudinal inserts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- 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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- 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
- H01B7/02—Disposition of insulation
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- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
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- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a silicon rubber insulation high-temperature-resistant cable which comprises a cable body. The silicon rubber insulated high-temperature-resistant cable comprises a cable body, wherein the cable body comprises a main wire core, an insulating sleeve, a shielding layer, a rubber framework, a mica tape and a reinforcing strip, the main wire core is arranged inside the rubber framework, the mica tape is wound on the surface of the main wire core, the reinforcing strip is arranged inside the rubber framework, the shielding layer is extruded on the surface of the rubber framework, the insulating sleeve is arranged on the surface of the shielding layer, the insulating sleeve is made of a silicon rubber material, the thickness of the insulating sleeve is 8mm-10mm, the shielding layer is formed by combining a semi-conductive inner layer and a polyethylene outer layer, the semi-conductive inner layer and the polyethylene outer layer are integrally extruded and molded, the reinforcing strip is made of a flexible steel wire rope material, and the rubber framework is arranged inside the cable, so that the high-temperature-resistant performance of the cable is excellent, and the mechanical strength, the tensile property, the bending-resistant, the service life of the cable is greatly prolonged.
Description
Technical Field
The invention relates to the technical field of cable preparation, in particular to a silicon rubber insulation high-temperature-resistant cable.
Background
Power cables are primarily cables used for transmitting and distributing electrical energy. The cable is commonly used for leading-out lines of urban underground power grids and power stations, the proportion of the cable in the power line is gradually increased, so that power cables with various performance types are produced by transportation, and particularly, the fireproof power cable is used as a leading-out line, has good fireproof performance and also has strong mechanical performance.
The environment that present power cable used is more and more diversified, high temperature, low temperature, abominable weather, abominable environment and so on all propose various difficult problems to the use of conventional cable, traditional silicon rubber insulated cable has the shortcoming of resistant high temperature difference, the cable is receiving high temperature back, tensile strength greatly reduced, after cable manufacture is accomplished, need carry out high temperature resistant tensile properties to the cable and detect, present tensile detection device detection efficiency is low, and it is comparatively loaded down with trivial details to operate, for solving above problem, the technical personnel in the field have proposed a silicon rubber insulated high temperature resistant cable.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a silicon rubber insulation high-temperature-resistant cable, which solves the problems that the traditional silicon rubber insulation cable has the defect of high temperature difference resistance, the tensile property of the cable is greatly reduced after the cable is subjected to high temperature, the high-temperature-resistant tensile property of the cable needs to be detected after the cable is produced, and the conventional tensile detection device has low detection efficiency and is complicated to operate.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an insulating high temperature resistant cable of silicon rubber, includes the cable body, the cable body includes thread core, insulating cover, shielding layer, rubber carcass, mica tape and reinforcement strip, the inside that the thread core is located rubber carcass is provided with a plurality of roots, and the mica tape winds the surface of package at the thread core, reinforcement strip sets up in rubber carcass's inside, and the crowded package of shielding layer is on rubber carcass's surface, the insulating cover sets up the surface at the shielding layer.
Preferably, the insulating sleeve is made of a silicon rubber material, the thickness of the insulating sleeve is 8mm-10mm, the shielding layer is formed by combining a semi-conductive inner layer and a polyethylene outer layer, the semi-conductive inner layer and the polyethylene outer layer are integrally formed in an extrusion wrapping mode, and the reinforcing strip is made of a flexible steel wire rope material.
Preferably, the rubber framework is made of a polyurethane material, and the preparation method of the rubber framework comprises the following steps:
s21, selecting 160 parts of silicone rubber, 6-10 parts of silane coupling agent and 10-20 parts of nano silicate;
s22, placing the silicon rubber in a stirrer, stirring at the rotation speed of 1600-2000r/min and at the temperature of 30-40 ℃, wherein the stirring time is 5-10min, after the stirring treatment of the silicon rubber is completed, sequentially adding a silane coupling agent and nano silicate into the stirrer, controlling the temperature of the stirrer to be 25-35 ℃, the rotation speed of 2400-2600r/min and the stirring time to be 6-8min under the condition of the vacuum degree of-0.1 MPa, and uniformly stirring to obtain the silicon rubber coating;
s23, weaving the skeleton body through warps and wefts, wherein the wefts are made of single polyurethane fibers, the warps comprise first warps and second warps, the first warps are made of single polyurethane fibers, and the second warps are made of multiple polyurethane fibers;
s24, coating the silicon rubber coating prepared in the S22 on the framework body in the S23, controlling the temperature of a vulcanizing roller to be 240-260 ℃, the running speed of a machine to be 3-4m/min, the pulling force to be 2000-2400N, and controlling the thickness of the silicon rubber coating to be 0.3-0.5mm to prepare the rubber framework.
Preferably, in the S22, the single polyurethane fiber has a linear diameter of 0.25mm and a density of 15 fibers/cm.
Preferably, the preparation method of the silicone rubber insulated high-temperature-resistant cable comprises the following steps:
step one, preparing raw materials: preparing a main wire core, an insulating sleeve, a shielding layer, a rubber framework, a mica tape and a reinforcing strip of the material of the silicon rubber insulating high-temperature-resistant cable;
step two, cable assembly: installing a reinforcing strip in the rubber framework, wrapping a mica tape on the surface of each main wire core, assembling the main wire cores wrapped with the mica tapes in the rubber framework, coating a shielding layer on the surface of the rubber framework, extruding the insulating sleeve by using an extruder, and coating the extruding material on the surface of the shielding layer to finish the integral assembly of the cable;
step three, cooling and forming: the assembled cable penetrates through the inside of the cooling water tank, and the cable body is cooled and formed;
step four, performance detection: the performance of the formed cable body is detected by using high-temperature stretch-resistant performance detection equipment, one end of the cable body penetrates through a material guide hole of a material guide plate on the left side of a case, one end of the cable body enters the inside of the case, at the moment, two electric push rod driving shafts in a traction mechanism extend out, positioning blocks at one ends of the two electric push rod driving shafts are close to each other, rubber pads on one sides opposite to the two positioning blocks are in close contact with the upper side and the lower side of the surface of the cable body to fix one end of the cable body, then, two linear motors on the upper side and the lower side inside a traction frame respectively slide towards the right side on two linear slide rails to drive one end of the cable body to move into the material guide hole of a material guide component on the right side, an operation controller opens two heating component switches to set a temperature value for an air, heating a cable body in a case, after heating for ten minutes, opening switches of two stretching mechanisms, enabling a servo electric cylinder driving shaft on one side of a movable block to extend out, enabling two clamping blocks to move relatively, enabling two rubber pads on the opposite sides of the two clamping blocks to be in close contact with the front side and the rear side of the surface of the cable body respectively, clamping the cable body, then opening a servo motor switch, enabling a servo motor output shaft to drive a rotating rod to rotate, enabling the rotating rod to be in threaded fit with an internal thread hole in the movable block through external threads formed on the surface, enabling the two movable blocks to displace in opposite directions on two sides of the surface of the rotating rod, and further carrying out stretching performance detection on the cable body between the two movable blocks, controlling the rotating stroke of the servo motor output shaft, adjusting the stretching force, and carrying out multi-section stretching performance detection on the cable body in the case, the cable body after performance detection is sent to the outside of the case through the material guide roller;
step five, finishing the preparation: and cleaning the surface of the cable body after the high-temperature tensile property detection, and finally rolling the cable body through a rolling mechanism to finish the preparation of the silicon rubber insulated high-temperature-resistant cable.
Preferably, the high-temperature tensile property detection equipment for the silicon rubber insulated high-temperature-resistant cable comprises a case and two mounting plates fixed on the front surface and the back surface of the case through bolts;
the inside of machine case is provided with drive mechanism, and the both sides of machine case all are provided with the guide subassembly, two the inside of mounting panel all is provided with heating element, and the relative one side of two mounting panels all is provided with stretching mechanism.
Preferably, the traction mechanism comprises a traction frame arranged inside the chassis;
the top and the equal fixedly connected with linear slide rail in bottom of traction frame inner wall, and the equal sliding connection in surface of two linear slide rails has linear electric motor, two the equal fixedly connected with electric putter in one side that linear electric motor is relative, and the equal fixedly connected with locating piece of one end of two electric putter drive shafts, two the arc wall has all been seted up to one side that the locating piece is relative, and the equal fixedly connected with rubber pad of inner wall of two arc walls is one.
Preferably, the stretching mechanism comprises a servo motor fixed on the back of the mounting plate and a rotating rod positioned on the back of the mounting plate and capable of rotating;
the equal fixedly connected with fixed block in both sides at the mounting panel back, and the both ends of dwang are rotated with the inside of two fixed blocks respectively and are connected, the one end fixed connection of shaft coupling and dwang is passed through to the one end of servo motor output shaft, the external screw thread has all been seted up to the both sides on dwang surface, and the revolve of two external screw threads is opposite, the equal threaded connection in both sides on dwang surface has the movable block, and the front of two movable blocks all with the back sliding connection of mounting panel, two the internal thread hole with two external screw thread looks adaptations is seted up respectively to the inside of movable block, and the equal fixedly connected with servo electric jar in the back of two movable blocks, two the equal threaded connection in one end of servo electric jar drive shaft has the clamp splice, and the equal fixedly connected with rubber pad.
Preferably, the heating assembly comprises two air heaters fixed on two sides of the front surface of the mounting plate and two air shields fixed on two sides of the back surface of the mounting plate;
one end of the air outlet of the air heater is communicated with the interior of the fan cover through a guide pipe, and the interior of the fan cover is fixedly connected with a filter screen.
Preferably, the material guiding assembly comprises two material guiding plates arranged at two sides of the machine box and material guiding rollers arranged inside the two material guiding plates;
the inside fixedly connected with pivot of guide roller, the guide hole has been seted up to the inside of stock guide, and the both ends of pivot rotate with the both sides of guide hole inner wall respectively and be connected.
(III) advantageous effects
The invention provides a silicon rubber insulation high-temperature-resistant cable. Compared with the prior art, the method has the following beneficial effects:
(1) the high-temperature-resistant silicone rubber insulated cable comprises a cable body, wherein the cable body comprises a main wire core, an insulating sleeve, a shielding layer, a rubber framework, a mica tape and a reinforcing strip, the main wire core is arranged inside the rubber framework, the mica tape is wound on the surface of the main wire core, the reinforcing strip is arranged inside the rubber framework, the shielding layer is extruded on the surface of the rubber framework, the insulating sleeve is arranged on the surface of the shielding layer, the insulating sleeve is made of a silicone rubber material, the thickness of the insulating sleeve is 8mm-10mm, the shielding layer is formed by combining a semi-conductive inner layer and a polyethylene outer layer, the semi-conductive inner layer and the polyethylene outer layer are integrally extruded and molded, the reinforcing strip is made of a flexible steel wire rope material, the rubber framework is arranged inside the cable, so that the high-temperature-resistant performance of the cable is excellent, and the mechanical strength, the tensile property, the bending-resistant performance and, the service life of the cable is greatly prolonged.
(2) The silicon rubber insulated high-temperature-resistant cable is characterized in that linear slide rails are fixedly connected with the top and the bottom of the inner wall of a traction frame through the top and the bottom of the inner wall of the traction frame, linear motors are connected with the surfaces of the two linear slide rails in a sliding manner, electric push rods are fixedly connected with the opposite sides of the two linear motors, positioning blocks are fixedly connected with one ends of two electric push rod driving shafts, arc-shaped grooves are formed in the opposite sides of the two positioning blocks, rubber pads I are fixedly connected with the inner walls of the two arc-shaped grooves, two electric push rod driving shafts in the traction mechanism extend out, the positioning blocks at one ends of the two electric push rod driving shafts are close to each other, the rubber pads I at the opposite sides of the two positioning blocks are in close contact with the upper side and the lower side of the surface of a, drive the cable body and carry out the displacement in the inside of quick-witted case, effectively improve the efficiency that carries out high temperature tensile properties to the cable and detect.
(3) The silicon rubber insulated high-temperature-resistant cable comprises fixed blocks fixedly connected with two sides of the back of an installation plate, two ends of a rotating rod are respectively and rotatably connected with the interiors of the two fixed blocks, one end of an output shaft of a servo motor is fixedly connected with one end of the rotating rod through a coupler, external threads are respectively arranged on two sides of the surface of the rotating rod, the rotating directions of the two external threads are opposite, movable blocks are respectively and threadedly connected with two sides of the surface of the rotating rod, the fronts of the two movable blocks are respectively and slidably connected with the back of the installation plate, internal thread holes matched with the two external threads are respectively arranged in the two movable blocks, servo electric cylinders are respectively and fixedly connected with the backs of the two movable blocks, clamping blocks are respectively and threadedly connected with one end of a driving shaft of each servo electric cylinder, a rubber pad II is fixedly connected with one side opposite to the two clamping blocks, a heating assembly comprises two, one end of an air outlet of the air heater is communicated with the inside of the fan cover through a guide pipe, a filter screen is fixedly connected inside the fan cover, high-temperature gas generated by the air heater enters the inside of the case through the fan cover to heat a cable body inside the case, a rubber pad II on one side opposite to the two clamping blocks is respectively in close contact with the front side and the rear side of the surface of the cable body to clamp the cable body, then a servo motor switch is opened, a rotating rod is driven to rotate by a servo motor output shaft, the rotating rod is in threaded fit with an internal thread hole inside the movable block through an external thread formed on the surface, the two movable blocks are enabled to displace in opposite directions on two sides of the surface of the rotating rod, so that the tensile property of the cable body between the two movable blocks is detected, the tensile force is adjusted by controlling the rotation stroke of the servo motor output shaft, and, the operation is more convenient.
Drawings
FIG. 1 is a schematic view of the structure of a silicone rubber insulated high temperature resistant cable according to the present invention;
FIG. 2 is a schematic diagram of the structure of the high temperature stretch resistance testing apparatus of the present invention;
FIG. 3 is a schematic view of the traction mechanism configuration of the present invention;
FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the structure of the stretching mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the servo cylinder and the clamping block of the present invention;
FIG. 7 is a schematic view of a heating assembly and mounting plate structure according to the present invention;
fig. 8 is a schematic view of the structure of the material guiding assembly of the present invention.
In the drawing, 10 cable bodies, 101 main wire cores, 102 insulating sleeves, 103 shielding layers, 104 rubber frameworks, 105 mica tapes, 106 reinforcing strips, 1 traction mechanism, 11 traction frames, 12 linear slide rails, 13 linear motors, 14 electric push rods, 15 positioning blocks, 16 arc-shaped grooves, 17 rubber pad I, 2 stretching mechanisms, 21 servo motors, 22 rotating rods, 23 fixing blocks, 24 external threads, 25 movable blocks, 26 internal thread holes, 27 servo electric cylinders, 28 clamping blocks, 29 rubber pad II, 3 heating assemblies, 31 hot air blowers, 32 fan housings, 33 filter screens, 4 material guide assemblies, 41 material guide plates, 42 material guide rollers, 43 rotating shafts, 44 material guide holes, 5 cases and 6 mounting plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides three technical solutions: a silicon rubber insulation high temperature resistant cable specifically comprises the following embodiments:
example 1
The utility model provides an insulating high temperature resistant cable of silicon rubber, including cable body 10, cable body 10 includes the thread core 101, insulating cover 102, shielding layer 103, rubber framework 104, mica tape 105 and reinforcement strip 106, the inside that the thread core 101 is located rubber framework 104 is provided with a plurality of, and mica tape 105 winds the surface of package at thread core 101, reinforcement strip 106 sets up the inside at rubber framework 104, and the crowded package of shielding layer 103 is on the surface of rubber framework 104, insulating cover 102 sets up the surface at shielding layer 103.
The insulating sleeve 102 is made of silicon rubber materials, the thickness of the insulating sleeve 102 is 8mm-10mm, the shielding layer 103 is formed by combining a semi-conductive inner layer and a polyethylene outer layer, the semi-conductive inner layer and the polyethylene outer layer are integrally formed in an extrusion wrapping mode, and the reinforcing strip 106 is made of flexible steel wire rope materials.
The rubber framework 104 is made of polyurethane materials, and the preparation method of the rubber framework 104 comprises the following steps:
s21, selecting 100 parts of silicon rubber, 6 parts of silane coupling agent and 10 parts of nano silicate;
s22, placing the silicon rubber in a stirrer, stirring at 1600r/min and 30 ℃ for 5min, after stirring the silicon rubber, sequentially adding a silane coupling agent and nano silicate into the stirrer, controlling the temperature of the stirrer to be 25 ℃, the rotating speed to be 2400r/min and the stirring time to be 6min under the condition that the vacuum degree is-0.1 MPa, and uniformly stirring to obtain the silicon rubber coating;
s23, weaving the skeleton body through warps and wefts, wherein the wefts are made of single polyurethane fibers, the warps comprise first warps and second warps, the first warps are made of single polyurethane fibers, and the second warps are made of multiple polyurethane fibers;
s24, coating the silicon rubber coating prepared in the S22 on the framework body in the S23, controlling the temperature of a vulcanizing roller to be 240 ℃, the running speed of a machine to be 3m/min, the pulling force to be 2000N, and the thickness of the silicon rubber coating to be 0.3mm, so as to prepare the rubber framework 104.
In S22, the linear diameter of a single polyurethane fiber is 0.25mm, and the density is 15 pieces/cm.
The preparation method of the silicon rubber insulated high-temperature-resistant cable comprises the following steps:
step one, preparing raw materials: preparing a main wire core 101, an insulating sleeve 102, a shielding layer 103, a rubber framework 104, a mica tape 105 and a reinforcing strip 106 of the material of the silicon rubber insulating high-temperature-resistant cable;
step two, cable assembly: installing a reinforcing strip 106 in the rubber framework 104, wrapping a mica tape 105 on the surface of each main wire core 101, assembling the main wire cores 101 wrapped with the mica tapes 105 in the rubber framework 104, coating the shielding layer 103 on the surface of the rubber framework 104, extruding the insulating sleeve 102 by using an extruder, and coating the extruded material on the surface of the shielding layer 103 to complete the integral assembly of the cable;
step three, cooling and forming: the assembled cable penetrates through the inside of the cooling water tank, and the cable body 10 is cooled and formed;
step four, performance detection: the performance of the formed cable body 10 is detected by using a high-temperature stretch-resistant performance detection device, one end of the cable body 10 passes through a material guide hole 44 of a material guide plate 41 on the left side of a case 5, so that one end of the cable body 10 enters the inside of the case 5, at the moment, two electric push rod 14 driving shafts in the traction mechanism 1 extend out, a positioning block 15 at one end of the driving shaft of the two electric push rods 14 approaches, rubber pads 17 on one side opposite to the two positioning blocks 15 are in close contact with the upper side and the lower side of the surface of the cable body 10, so as to complete the fixation of one end of the cable body 10, then two linear motors 13 on the upper side and the lower side inside the traction frame 11 respectively slide towards the right side on two linear slide rails 12, so as to drive one end of the cable body 10 to displace into the material guide hole 44 of a material guide component 4 on, high-temperature gas generated by the air heater 31 enters the inside of the case 5 through the air cover 32 to heat the cable body 10 inside the case 5, after ten minutes of heating, the switches of the two stretching mechanisms 2 are opened, the driving shaft of the servo electric cylinder 27 on one side of the movable block 25 extends out, the two clamping blocks 28 move relatively, the rubber pads 29 on the opposite sides of the two clamping blocks 28 are respectively in close contact with the front side and the rear side of the surface of the cable body 10 to clamp the cable body 10, then the switch of the servo motor 21 is opened, the output shaft of the servo motor 21 drives the rotating rod 22 to rotate, the rotating rod 22 is in threaded fit with the internal threaded hole 26 inside the movable block 25 through the external threads 24 formed on the surface, so that the two movable blocks 25 displace in opposite directions on the two sides of the surface of the rotating rod 22, and the cable body 10 between the two movable blocks 25 is subjected to stretching, the rotating stroke of the output shaft of the servo motor 21 is controlled, the stretching force is adjusted, the multi-section stretching performance detection is carried out on the cable body 10 in the case 5, and the cable body 10 after the performance detection is sent to the outside of the case 5 through the guide roller 42;
step five, finishing the preparation: and cleaning the surface of the cable body 10 subjected to high-temperature tensile property detection, and finally rolling the cable body 10 through a rolling mechanism to complete the preparation of the silicon rubber insulated high-temperature-resistant cable.
Referring to fig. 2, the high temperature stretch-proofing performance testing apparatus for the silicon rubber insulated high temperature-resistant cable includes a chassis 5 and two mounting plates 6 fixed on the front and back of the chassis 5 by bolts;
the inside of quick-witted case 5 is provided with drive mechanism 1, and the both sides of quick-witted case 5 all are provided with guide subassembly 4, and the inside of two mounting panels 6 all is provided with heating element 3, and the relative one side of two mounting panels 6 all is provided with stretching mechanism 2.
Referring to fig. 3 and 4, the traction mechanism 1 includes a traction frame 11 disposed inside the chassis 5;
the top and the equal fixedly connected with linear slide rail 12 in bottom of traction frame 11 inner wall, and the equal sliding connection in surface of two linear slide rails 12 has linear electric motor 13, the equal fixedly connected with electric putter 14 in one side that two linear electric motor 13 are relative, and the equal fixedly connected with locating piece 15 of one end of two electric putter 14 drive shafts, arc wall 16 has all been seted up to one side that two locating pieces 15 are relative, and the equal fixedly connected with rubber pad 17 of inner wall of two arc walls 16.
Referring to fig. 5 and 6, the stretching mechanism 2 includes a servo motor 21 fixed on the back of the mounting plate 6 and a rotating rod 22 located on the back of the mounting plate 6 for rotation;
the equal fixedly connected with fixed block 23 in both sides at the mounting panel 6 back, and dwang 22's both ends are connected with the inside rotation of two fixed blocks 23 respectively, shaft coupling and dwang 22's one end fixed connection is passed through to the one end of servo motor 21 output shaft, external screw thread 24 has all been seted up to the both sides on dwang 22 surface, and two external screw thread 24's revolve to opposite, the equal threaded connection in both sides on dwang 22 surface has movable block 25, and two movable block 25's the front all with mounting panel 6's back sliding connection, the internal thread hole 26 with two external screw thread 24 looks adaptations is seted up respectively to two movable block 25's inside, and the equal fixedly connected with servo electric jar 27 in the back of two movable block 25, the equal threaded connection in one end of two servo electric jar 27 drive shafts has clamp 28, and the equal fixedly connected with rubber.
Referring to fig. 7, the heating assembly 3 includes two air heaters 31 fixed on two sides of the front surface of the mounting plate 6 and two air shields 32 fixed on two sides of the back surface of the mounting plate 6;
one end of the air outlet of the air heater 31 is communicated with the inside of the fan housing 32 through a duct, and the inside of the fan housing 32 is fixedly connected with a filter screen 33.
Referring to fig. 8, the material guiding assembly 4 includes two material guiding plates 41 disposed at two sides of the chassis 5 and a material guiding roller 42 disposed inside the two material guiding plates 41;
the rotating shaft 43 is fixedly connected to the inside of the material guiding roller 42, the material guiding holes 44 are formed in the material guiding plate 41, and two ends of the rotating shaft 43 are rotatably connected to two sides of the inner wall of the material guiding holes 44 respectively.
Example 2
The present embodiment is different from embodiment 1 in that:
the preparation method of the rubber framework 104 comprises the following steps:
s21, selecting 160 parts of silicon rubber, 10 parts of silane coupling agent and 20 parts of nano silicate;
s22, placing the silicon rubber in a stirrer, stirring at the rotating speed of 2000r/min and at the temperature of 40 ℃ for 10min, after stirring the silicon rubber, sequentially adding a silane coupling agent and nano silicate into the stirrer, controlling the temperature of the stirrer to be 35 ℃, the rotating speed of 2600r/min and the stirring time to be 8min under the condition that the vacuum degree is-0.1 MPa, and uniformly stirring to obtain the silicon rubber coating;
s23, weaving the skeleton body through warps and wefts, wherein the wefts are made of single polyurethane fibers, the warps comprise first warps and second warps, the first warps are made of single polyurethane fibers, and the second warps are made of multiple polyurethane fibers;
s24, coating the silicon rubber coating prepared in the S22 on the framework body in the S23, controlling the temperature of a vulcanizing roller to be 260 ℃, the running speed of a machine to be 4m/min, the pulling force to be 2400N, and controlling the thickness of the silicon rubber coating to be 0.5mm to prepare the rubber framework.
Example 3
The present embodiment is different from embodiment 1 in that:
the preparation method of the rubber framework 104 comprises the following steps:
s21, selecting 130 parts of silicon rubber, 8 parts of silane coupling agent and 15 parts of nano silicate;
s22, placing the silicon rubber in a stirrer, stirring at the rotation speed of 1800r/min and the temperature of 35 ℃, wherein the stirring time is 8min, after the stirring of the silicon rubber is completed, sequentially adding a silane coupling agent and nano silicate into the stirrer, controlling the temperature of the stirrer to be 30 ℃, the rotation speed of 2500r/min and the stirring time to be 7min under the condition that the vacuum degree is-0.1 MPa, and uniformly stirring to obtain the silicon rubber coating;
s23, weaving the skeleton body through warps and wefts, wherein the wefts are made of single polyurethane fibers, the warps comprise first warps and second warps, the first warps are made of single polyurethane fibers, and the second warps are made of multiple polyurethane fibers;
s24, coating the silicon rubber coating prepared in the S22 on the framework body in the S23, controlling the temperature of a vulcanizing roller to be 250 ℃, the running speed of a machine to be 3.5m/min, the tensile force to be 2200N, and controlling the thickness of the silicon rubber coating to be 0.4mm to prepare the rubber framework.
And those not described in detail in this specification are well within the skill of those in the art.
The working principle of the high-temperature stretch-proofing performance detection equipment is as follows:
when the cable pulling device is used, one end of the cable body 10 penetrates through the material guiding hole 44 of the material guiding plate 41 on the left side of the chassis 5, so that one end of the cable body 10 enters the inside of the chassis 5, at the moment, the driving shafts of the two electric push rods 14 in the pulling mechanism 1 extend out, the positioning blocks 15 at one ends of the driving shafts of the two electric push rods 14 are close to each other, the rubber pads 17 on one side opposite to the two positioning blocks 15 are in close contact with the upper side and the lower side of the surface of the cable body 10, so as to fix one end of the cable body 10, then the two linear motors 13 on the upper side and the lower side inside the pulling frame 11 respectively slide towards the right side on the two linear slide rails 12, so as to drive one end of the cable body 10 to move to the material guiding hole 44 of the material guiding component 4 on the right side, the controller is operated to, heating the cable body 10 in the case 5 for ten minutes, opening the switches of the two stretching mechanisms 2, extending out the driving shaft of the servo electric cylinder 27 on one side of the movable block 25, making the two clamping blocks 28 move relatively, utilizing the rubber pads 29 on the opposite sides of the two clamping blocks 28 to be respectively in close contact with the front side and the rear side of the surface of the cable body 10 to clamp the cable body 10, then opening the switch of the servo motor 21, utilizing the output shaft of the servo motor 21 to drive the rotating rod 22 to rotate, making the rotating rod 22 in threaded fit with the internal thread hole 26 in the movable block 25 through the external thread 24 arranged on the surface, making the two movable blocks 25 displace in opposite directions on the two sides of the surface of the rotating rod 22, thereby detecting the stretching performance of the cable body 10 between the two movable blocks 25, and controlling the rotating stroke of the output shaft of the servo motor 21, the tensile force is adjusted, multi-section tensile property detection is carried out on the cable body 10 inside the case 5, and the cable body 10 after the performance detection is sent to the outside of the case 5 through the material guide roller 42.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A silicon rubber insulation high temperature resistant cable is characterized in that: including cable body (10), cable body (10) include sinle silk (101), insulating cover (102), shielding layer (103), rubber framework (104), mica tape (105) and reinforcement strip (106), the inside that sinle silk (101) are located rubber framework (104) is provided with a plurality of roots, and mica tape (105) are around the surface of package at sinle silk (101), reinforcement strip (106) set up the inside at rubber framework (104), and shielding layer (103) crowded package is on the surface of rubber framework (104), insulating cover (102) set up the surface at shielding layer (103).
2. The silicone rubber insulated high-temperature-resistant cable according to claim 1, wherein: the insulation sleeve (102) is made of a silicon rubber material, the thickness of the insulation sleeve (102) is 8-10 mm, the shielding layer (103) is formed by combining a semi-conductive inner layer and a polyethylene outer layer, the semi-conductive inner layer and the polyethylene outer layer are integrally formed in an extrusion wrapping mode, and the reinforcing strip (106) is made of a flexible steel wire rope material.
3. The silicone rubber insulated high-temperature-resistant cable according to claim 1, wherein: the rubber framework (104) is made of polyurethane materials, and the preparation method of the rubber framework (104) comprises the following steps:
s21, selecting 160 parts of silicone rubber, 6-10 parts of silane coupling agent and 10-20 parts of nano silicate;
s22, placing the silicon rubber in a stirrer, stirring at the rotation speed of 1600-2000r/min and at the temperature of 30-40 ℃, wherein the stirring time is 5-10min, after the stirring treatment of the silicon rubber is completed, sequentially adding a silane coupling agent and nano silicate into the stirrer, controlling the temperature of the stirrer to be 25-35 ℃, the rotation speed of 2400-2600r/min and the stirring time to be 6-8min under the condition of the vacuum degree of-0.1 MPa, and uniformly stirring to obtain the silicon rubber coating;
s23, weaving the skeleton body through warps and wefts, wherein the wefts are made of single polyurethane fibers, the warps comprise first warps and second warps, the first warps are made of single polyurethane fibers, and the second warps are made of multiple polyurethane fibers;
s24, coating the silicon rubber coating prepared in the S22 on the framework body in the S23, controlling the temperature of a vulcanizing roller to be 240-260 ℃, the running speed of a machine to be 3-4m/min, the pulling force to be 2000-2400N, and controlling the thickness of the silicon rubber coating to be 0.3-0.5mm to prepare the rubber framework (104).
4. The silicone rubber insulated high-temperature-resistant cable according to claim 3, wherein: in the S22, the linear diameter of a single polyurethane fiber is 0.25mm, and the density is 15/cm.
5. The silicone rubber insulated high-temperature-resistant cable according to claim 1, wherein: the preparation method of the silicon rubber insulated high-temperature-resistant cable comprises the following steps:
step one, preparing raw materials: preparing a main wire core (101), an insulating sleeve (102), a shielding layer (103), a rubber framework (104), a mica tape (105) and a reinforcing strip (106) of the material of the silicon rubber insulating high-temperature-resistant cable;
step two, cable assembly: installing a reinforcing strip (106) in a rubber framework (104), wrapping a mica tape (105) on the surface of each main wire core (101), assembling the main wire cores (101) wrapped with the mica tape (105) in the rubber framework (104), coating a shielding layer (103) on the surface of the rubber framework (104), extruding an insulating sleeve (102) by using an extruder, and coating the extruding material on the surface of the shielding layer (103) to complete the assembly of the whole cable;
step three, cooling and forming: the assembled cable penetrates through the inside of the cooling water tank, and the cable body (10) is cooled and formed;
step four, performance detection: the performance of the formed cable body (10) is detected by using high-temperature anti-stretching performance detection equipment, one end of the cable body (10) penetrates through a material guide hole (44) of a material guide plate (41) at the left side of a case (5), one end of the cable body (10) enters the case (5), at the moment, two electric push rod (14) driving shafts in a traction mechanism (1) extend out, positioning blocks (15) at one ends of the driving shafts of the two electric push rods (14) are close to each other, rubber pads (17) at one sides opposite to the two positioning blocks (15) are in close contact with the upper side and the lower side of the surface of the cable body (10) to complete the fixation of one end of the cable body (10), then two linear motors (13) at the upper side and the lower side inside of a traction frame (11) respectively slide towards the right side on two linear slide rails (12) to drive one end of the cable body (10) to displace to the material guide hole (44) of a, the operation controller opens switches of the two heating components (3), a temperature value is set for the air heater (31), high-temperature gas generated by the air heater (31) enters the interior of the case (5) through the fan cover (32), the cable body (10) in the case (5) is heated, after ten minutes of heating, the switches of the two stretching mechanisms (2) are opened, a servo electric cylinder (27) driving shaft on one side of the movable block (25) extends out, the two clamping blocks (28) move relatively, a rubber gasket II (29) on one side opposite to the two clamping blocks (28) is respectively in close contact with the front side and the rear side of the surface of the cable body (10) to clamp the cable body (10), then the servo motor (21) is opened, an output shaft of the servo motor (21) is used for driving the rotating rod (22) to rotate, the rotating rod (22) is in threaded fit with an internal threaded hole (26) in the movable block (25) through an external thread (24) formed on the surface, the two movable blocks (25) are displaced in opposite directions on two sides of the surface of the rotating rod (22), so that the tensile property of the cable body (10) between the two movable blocks (25) is detected, the tensile force is adjusted by controlling the rotating stroke of an output shaft of the servo motor (21), the multi-section tensile property of the cable body (10) in the case (5) is detected, and the cable body (10) subjected to the performance detection is sent to the outside of the case (5) through the guide roller (42);
step five, finishing the preparation: and cleaning the surface of the cable body (10) subjected to high-temperature tensile property detection, and finally rolling the cable body (10) through a rolling mechanism to complete the preparation of the silicon rubber insulation high-temperature-resistant cable.
6. The silicone rubber insulated high-temperature-resistant cable according to claim 5, wherein: the high-temperature stretch-proofing performance detection equipment for the silicon rubber insulated high-temperature-resistant cable comprises a case (5) and two mounting plates (6) fixed on the front surface and the back surface of the case (5) through bolts;
the inside of quick-witted case (5) is provided with drive mechanism (1), and the both sides of quick-witted case (5) all are provided with guide subassembly (4), two the inside of mounting panel (6) all is provided with heating element (3), and just one side that two mounting panels (6) are relative all is provided with stretching mechanism (2).
7. The silicone rubber insulated high-temperature-resistant cable according to claim 6, wherein: the traction mechanism (1) comprises a traction frame (11) arranged in the case (5);
the top and the equal fixedly connected with linear slide rail (12) in bottom of traction frame (11) inner wall, and the equal sliding connection in surface of two linear slide rails (12) has linear electric motor (13), two the equal fixedly connected with electric putter (14) in one side that linear electric motor (13) is relative, and the equal fixedly connected with locating piece (15) of one end of two electric putter (14) drive shafts, two arc wall (16) have all been seted up to the relative one side of locating piece (15), and the equal fixedly connected with rubber pad (17) of inner wall of two arc walls (16).
8. The silicone rubber insulated high-temperature-resistant cable according to claim 6, wherein: the stretching mechanism (2) comprises a servo motor (21) fixed on the back of the mounting plate (6) and a rotating rod (22) positioned on the back of the mounting plate (6) and rotating;
the both sides at the mounting panel (6) back all fixedly connected with fixed block (23), and the both ends of dwang (22) are rotated with the inside of two fixed blocks (23) respectively and are connected, the one end fixed connection of shaft coupling and dwang (22) is passed through to the one end of servo motor (21) output shaft, external screw thread (24) have all been seted up to the both sides on dwang (22) surface, and the rotation of two external screw thread (24) is opposite, the equal threaded connection in both sides on dwang (22) surface has movable block (25), and the front of two movable block (25) all with the back sliding connection of mounting panel (6), two the internal thread hole (26) with two external screw thread (24) looks adaptations are seted up respectively to the inside of movable block (25), and the equal fixedly connected with servo electric jar (27) in the back of two movable block (25), two the equal threaded connection in one end of servo electric jar (27) drive shaft has clamp splice, and one side of the two clamping blocks (28) opposite to each other is fixedly connected with a second rubber pad (29).
9. The silicone rubber insulated high-temperature-resistant cable according to claim 6, wherein: the heating component (3) comprises two air heaters (31) fixed on two sides of the front surface of the mounting plate (6) and two air shields (32) fixed on two sides of the back surface of the mounting plate (6);
one end of the air outlet of the air heater (31) is communicated with the inside of the fan cover (32) through a guide pipe, and the inside of the fan cover (32) is fixedly connected with a filter screen (33).
10. The silicone rubber insulated high-temperature-resistant cable according to claim 6, wherein: the material guide assembly (4) comprises two material guide plates (41) arranged on two sides of the case (5) and material guide rollers (42) arranged inside the two material guide plates (41);
the material guide device is characterized in that a rotating shaft (43) is fixedly connected to the interior of the material guide roller (42), material guide holes (44) are formed in the material guide plate (41), and two ends of the rotating shaft (43) are rotatably connected with two sides of the inner wall of the material guide holes (44) respectively.
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| CN111573412A (en) * | 2020-05-31 | 2020-08-25 | 胡晓霖 | Wire harness traction equipment |
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| CN103839617A (en) * | 2012-11-23 | 2014-06-04 | 江苏河阳线缆有限公司 | Double-layer-shielding cable |
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