CN111864652B - Special power cable for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit - Google Patents
Special power cable for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit Download PDFInfo
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- CN111864652B CN111864652B CN202010896519.8A CN202010896519A CN111864652B CN 111864652 B CN111864652 B CN 111864652B CN 202010896519 A CN202010896519 A CN 202010896519A CN 111864652 B CN111864652 B CN 111864652B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1248—Machines
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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
- H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal 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
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1248—Machines
- H02G1/1251—Machines the cutting element not rotating about the wire or cable
- H02G1/126—Machines the cutting element not rotating about the wire or cable making a longitudinal cut
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1248—Machines
- H02G1/127—Features relating to cutting elements
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- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
The invention discloses a cross-linked polyethylene insulated low-smoke halogen-free flame-retardant power cable special for rail transit, which comprises a conductor, wherein the outer side of the conductor is sequentially wrapped with a conductor shielding layer, an insulating shielding layer, a metal shielding layer, a water blocking layer, an aluminum-plastic composite belt, an inner protection layer, a steel wire armor layer and an outer protection layer; through setting up adjusting block and threaded rod, utilize the threaded rod to adjust adjusting block, make adjusting block move in the regulation spout that the slope set up, and then control cutting blade's depth of cut, avoid stripping off inconveniently or receive destruction because of the incision is too dark because of the incision leads to the outer jacket too shallowly, greatly saved the stripping time of cable outer jacket, reduced staff's injured risk simultaneously.
Description
Technical Field
The invention relates to a power cable, in particular to a power cable special for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit.
Background
The cable is an electric energy or signal transmission device, usually consists of several or several groups of conducting wires, in order to protect the conductors inside the cable, if the live conductors are exposed in the environment during use, the live conductors are easy to damage the living beings near the cable, which brings the risk of electric shock to the living beings, and simultaneously, the live conductors are easy to cause short circuit to cause fire, therefore, the conductors are usually coated with a multilayer structure for insulating and shielding electromagnetic fields.
The outermost skin structure of the cable usually uses pressure-resistant and wear-resistant materials, the thickness of the outermost skin structure is larger than that of other hierarchical structures, the skin is often required to be peeled off when the cable is used, particularly, equipment such as cables with large diameters and wire strippers cannot be dispatched to a use place, workers need to cut the skin with a utility knife and then gradually peel off the skin, the efficiency is low, injuries are easily caused, and the peeled skin is relatively fragmentary and difficult to clean. Therefore, the power cable special for the cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit is provided.
Disclosure of Invention
The invention aims to provide a special power cable for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit, which is characterized in that a prying plate and a roller are arranged, one end of an outer protective layer is clamped and fixed by utilizing the unidirectional rotation of the roller, the outer protective layer is separated in the cutting process, the outer protective layer cannot be broken in the separating process, the collection and the cleaning are easy, and the stripping efficiency of the outer protective layer is improved; through setting up adjusting block and threaded rod, utilize the threaded rod to adjust adjusting block, make adjusting block move in the regulation spout that the slope set up, and then control cutting blade's depth of cut, avoid stripping off inconveniently or receive destruction because of the incision is too dark because of the incision leads to the outer jacket too shallowly, greatly saved the stripping time of cable outer jacket, reduced staff's injured risk simultaneously.
The technical problem solved by the invention is as follows:
(1) how to clamp and fix one end of the outer protective layer by arranging the prying plate and the roller and utilizing the unidirectional rotation of the roller, and the outer protective layer is torn apart and separated in the cutting process, so that the problem that the surface of the cable is inconvenient to separate in the prior art is solved;
(2) how through setting up adjusting block and threaded rod, utilize the threaded rod to adjust adjusting block, make adjusting block move in the regulation spout that the slope set up, and then control cutting blade's depth of cut, solve among the prior art because of the depth of cut uncontrollable lead to the poor problem of cutting quality.
The purpose of the invention can be realized by the following technical scheme: a power cable special for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit comprises a conductor, wherein a conductor shielding layer, an insulation shielding layer, a metal shielding layer, a water blocking layer, an aluminum-plastic composite belt, an inner protection layer, a steel wire armor layer and an outer protection layer are sequentially wrapped on the outer side of the conductor, and a plurality of wire stripping grooves are formed in one end of the outer protection layer at equal angles;
the method for peeling the outer protective layer of the cross-linked polyethylene insulation low-smoke halogen-free flame-retardant power cable special for rail transit specifically comprises the following steps:
the method comprises the following steps: firstly, rotating a rotating disc to enable a guide pin to slide in a guide groove to drive six opening and closing blades to be separated from each other, enabling a cable to penetrate through a gap between the opening and closing blades, extruding a wire pressing block to enable the wire pressing block to be coated on the outer side of the cable under the action of a third compression spring, rotating the cable to enable a wire stripping groove on an outer protective layer to be aligned with a cutting blade, pushing the cable to a direction close to a fixed block, enabling a leather prying plate to enter the gap between the outer protective layer and a steel wire armor layer, and enabling one end of the outer protective layer to be arranged between the leather prying plate and a roller;
step two: the rotating disc is rotated reversely, the opening and closing blades are folded mutually, the opening and closing blades are just in contact with the outer side of the cable, then the adjusting knob is rotated, the threaded rod is rotated, the adjusting sliding block meshed and connected with the threaded rod is driven to slide in the adjusting sliding chute, the cutting blade enters the stripping groove, the sleeve is pulled towards the direction far away from the stripping groove, the cutting blade moves along the stripping groove and cuts the outer protective layer, when the sleeve is pulled, the cut outer protective layer part is pulled apart and separated, in the process of pulling and separating, as the shifting block is fixed on the outer side of the connecting shaft, the shifting block is matched with the wedge-shaped sliding block, the connecting shaft can only continuously rotate around one direction, the outer protective layer part can be locked when the connecting shaft rotates towards the other direction, and after the idler wheel is locked, the end part of the outer protective layer between the prying plate and the idler wheel is pressed and fixed;
step three: after the required peeling length is obtained, the sleeve is stopped to be pulled, the adjusting knob is rotated reversely, the threaded rod is rotated reversely, the adjusting slider meshed and connected with the threaded rod is driven to slide in the adjusting chute, the cutting blade is separated from the outer protective layer, the floating strip is lifted, the fixing of the prying plate and the roller to the end part of the outer protective layer is removed, the rotating disc is rotated, the opening and closing blades are separated from each other, the cable is drawn out from the sleeve, the cut outer protective layer is cut off, and the outer protective layer is peeled off.
The invention has further technical improvements that: the peeling device for the special power cable for the cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit comprises a sleeve, wherein a plurality of fixed blocks are arranged on one side of the sleeve at equal angles, the fixed blocks are fixedly connected with the sleeve, an installation block is fixed on one side of each fixed block, a prying leather plate is fixedly connected to one side of each installation block, and the surface of one side of each prying leather plate is obliquely arranged;
spring mounting groove has been seted up to one side of fixed block, is provided with first compression spring in the spring mounting groove, first compression spring's one end and fixed block fixed connection, the unsteady strip of other end fixedly connected with of first compression spring, unsteady strip and spring mounting groove sliding fit, the side of unsteady strip is rotated and is connected with the connecting axle, and the outside of connecting axle is provided with the gyro wheel, connecting axle and gyro wheel fixed connection, the one end outside fixedly connected with that the gyro wheel was kept away from to the connecting axle stir the piece, be provided with the mount sleeve seat directly over stirring the piece, mount sleeve seat and unsteady strip fixed connection are provided with second compression spring in the mount sleeve seat, the one end and the mount sleeve seat fixed connection of second compression spring, the other end fixedly connected with wedge slider of second compression spring.
The invention has further technical improvements that: a plurality of regulation spouts have been seted up to angles such as telescopic outside surface, are provided with adjust the slider in adjusting the spout, and adjust the side of slider and set up threaded hole, threaded hole are provided with the threaded rod, the both ends of threaded rod all are rotated through bearing and sleeve and are connected, and the threaded rod passes through thread engagement with adjust the slider and is connected, the one end outside of threaded rod is provided with adjust knob, adjust knob and threaded rod fixed connection, the mounting groove has been seted up to adjust the bottom of spout, is provided with cutting blade in the mounting groove, cutting blade and adjust the slider's bottom fixed connection.
The invention has further technical improvements that: the pressing blocks are arranged in the sleeve at equal angles, two third compression springs are symmetrically arranged between the pressing blocks and the sleeve, and two ends of each third compression spring are fixedly connected with the sleeve and the pressing blocks respectively.
The invention has further technical improvements that: one side that the fixed block was kept away from to the sleeve is provided with the rolling disc, and the rolling disc rotates with the sleeve to be connected, the spout that opens and shuts has been seted up to rolling disc one side, and the spout that opens and shuts is the hexagon structure, the equal angle is provided with six blades that open and shut in the rolling disc, and the equal fixedly connected with slider that opens and shuts in one side of the blade that opens and shuts, the slider that opens and shuts sets up in the spout that opens and shuts, slider and rolling disc sliding fit open and shut, the blade that opens and shuts keeps away from one side fixedly connected with uide pin of the slider that opens and shuts, six guide ways have been seted up to the equal angle in one side of rolling disc, and the uide pin setting is in the guide way, and uide pin and rolling disc sliding connection.
The invention has further technical improvements that: the number of the fixed blocks, the adjusting sliding grooves and the wire pressing blocks corresponds to the number of the wire stripping grooves.
The invention has further technical improvements that: the tank bottom of adjusting the spout is the slope setting, the threaded rod is the slope setting, and the inclination of threaded rod is the same with the inclination of tank bottom.
The invention has further technical improvements that: the outer jacket is a high-flame-retardant outer jacket layer, the steel wire armor layer is a fine steel wire oblique net-shaped woven structure, the inner jacket layer is a low-smoke halogen-free flame-retardant polyolefin inner cushion layer, the water-blocking layer is a woven belt formed by weaving water-blocking yarns consisting of a polyester fabric base layer and expansion particles bonded on the polyester fabric base layer, the metal shielding layer is copper strip shielding, a double-layer copper strip gap is adopted for wrapping, the surface of the metal shielding layer is tightened by adopting a copper wire reversely wrapped, and the insulating layer is made of a cross-linked polyethylene material.
Compared with the prior art, the invention has the beneficial effects that:
1. when the cable stripping device is used, the cable is rotated, so that the stripping groove on the outer protective layer is aligned with the cutting blade, the cable is pushed towards the direction close to the fixed block, the prying plate enters the gap between the outer protective layer and the steel wire armor layer, and one end of the outer protective layer is arranged between the prying plate and the roller; the sleeve is pulled in the direction far away from the wire stripping groove, the cutting blade moves along the wire stripping groove and cuts the outer protective layer, when the sleeve is pulled, the cut outer protective layer is pulled apart and separated, in the process of pulling apart and separating, a poking block is fixed on the outer side of the connecting shaft and is matched with the wedge-shaped sliding block, so that the connecting shaft can only rotate continuously in one direction, and can be locked when rotating in the other direction, after the roller is locked, the end part of the outer protective layer between the prying plate and the roller is pressed and fixed, the prying plate and the roller are arranged, one end of the outer protective layer is clamped and fixed by utilizing the unidirectional rotation of the roller, the outer protective layer is pulled apart and separated in the process of cutting, the outer protective layer cannot be broken in the process of pulling apart and separating, the collection and the cleaning are easy, and the stripping efficiency of the outer protective layer is improved;
2. rotate adjust knob, make the threaded rod rotate, and drive the adjusting block who is connected with the threaded rod meshing and slide in adjusting the spout, make cutting blade get into the wire stripping groove, to the direction pulling sleeve of keeping away from the wire stripping groove, cutting blade moves and cuts outer sheath along the wire stripping groove, after obtaining the length of skinning that needs, stop the pulling sleeve, the antiport adjust knob, make the threaded rod antiport, and drive the adjusting block who is connected with the threaded rod meshing and slide in adjusting the spout, make cutting blade break away from the outer jacket, through setting up adjusting block and threaded rod, utilize the threaded rod to adjust adjusting block, make adjusting block move in the adjusting spout that the slope set up, and then control cutting blade's cutting depth, avoid because of the too shallow outer jacket that leads to peels off inconveniently or because of the incision is too dark makes cable inner structure receive destruction.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a cross-sectional schematic view of a cable according to the present invention;
FIG. 2 is a schematic perspective view of a cable according to the present invention;
FIG. 3 is a schematic front view of the peeling apparatus of the present invention;
FIG. 4 is an enlarged view of the detail of area A in FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view of a cutting blade adjustment mechanism of the present invention;
FIG. 6 is a side view of the peeling apparatus of the present invention;
FIG. 7 is a perspective view of the rotating disk connection structure of the present invention;
FIG. 8 is a schematic view of the connection of the opening and closing blade, the opening and closing slider and the guide pin according to the present invention.
In the figure: 1. a conductor; 2. a conductor shield layer; 3. an insulating layer; 4. an insulating shield layer; 5. a metal shielding layer; 6. a water resistant layer; 7. an aluminum-plastic composite tape; 8. an inner protective layer; 9. a steel wire armor layer; 10. an outer jacket; 11. a sleeve; 12. a fixed block; 13. mounting blocks; 14. prying a leather plate; 15. a first compression spring; 16. a floating bar; 17. a connecting shaft; 18. a roller; 19. a shifting block; 20. installing a sleeve seat; 21. a second compression spring; 22. a wedge-shaped slider; 23. adjusting the sliding block; 24. a threaded rod; 25. adjusting a knob; 26. a cutting blade; 27. a third compression spring; 28. a line pressing block; 29. rotating the disc; 30. opening and closing the blades; 31. a sliding block is opened and closed; 32. a guide pin; 101. stripping a wire groove; 102. adjusting the sliding chute; 103. mounting grooves; 104. the sliding chute is opened and closed; 105. a guide groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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, a cross-linked polyethylene insulated low-smoke halogen-free flame-retardant power cable special for rail transit is characterized in that: the cable comprises a conductor 1, wherein the outer side of the conductor 1 is sequentially wrapped with a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, a metal shielding layer 5, a water-blocking layer 6, an aluminum-plastic composite belt 7, an inner protection layer 8, a steel wire armor layer 9 and an outer protection layer 10, and one end of the outer protection layer 10 is provided with a plurality of wire stripping grooves 101 at equal angles;
the method for peeling the outer protective layer of the cross-linked polyethylene insulation low-smoke halogen-free flame-retardant power cable special for rail transit specifically comprises the following steps:
the method comprises the following steps: firstly, rotating the rotating disc 29 to enable the guide pin 32 to slide in the guide groove 105 to drive the six opening and closing blades 30 to separate from each other, enabling the cable to penetrate through a gap between the opening and closing blades 30, extruding the wire pressing block 28 to enable the wire pressing block 28 to be coated on the outer side of the cable under the action of the third compression spring 27, rotating the cable to enable the wire stripping groove 101 on the outer protective layer 10 to be aligned with the cutting blade 26, pushing the cable to the direction close to the fixed block 12, enabling the prying plate 14 to enter the gap between the outer protective layer 10 and the steel wire armor layer 9, and enabling one end of the outer protective layer 10 to be arranged between the prying plate 14 and the roller 18;
step two: the rotating disc 29 is rotated reversely to fold the opening and closing blades 30, the opening and closing blades 30 are just contacted with the outer side of the cable, then the adjusting knob 25 is rotated to rotate the threaded rod 24, and drives the adjusting slider 23 engaged with the threaded rod 24 to slide in the adjusting chute 102, so that the cutting blade 26 enters the stripping groove 101, the sleeve 11 is pulled in the direction away from the stripping groove 101, the cutting blade 26 moves along the stripping groove 101 and cuts the outer sheath 10, when the sleeve 11 is pulled, the cut outer sheath 10 is torn apart and separated, and in the process of tearing apart and separating, because the outer side of the connecting shaft 17 is fixed with the shifting block 19, the shifting block 19 is matched with the wedge-shaped sliding block 22, the connecting shaft 17 can only rotate continuously around one direction, the connecting shaft can be locked when rotating towards the other direction, and after the roller 18 is locked, the end part of the outer protective layer 10 between the leather prying plate 14 and the roller 18 is pressed and fixed;
step three: after the required peeling length is obtained, the sleeve 11 is stopped to be pulled, the adjusting knob 25 is rotated reversely, the threaded rod 24 is rotated reversely, the adjusting slide block 23 meshed and connected with the threaded rod 24 is driven to slide in the adjusting chute 102, the cutting blade 26 is separated from the outer protective layer 10, the floating strip 16 is lifted, the fixing of the end part of the outer protective layer 10 by the skin prying plate 14 and the roller 18 is released, the rotating disc 29 is rotated, the opening and closing blades 30 are separated from each other, the cable is drawn out from the sleeve 11, the cut outer protective layer 10 is cut, and the peeling of the outer protective layer 10 is completed.
The peeling device for the special power cable for the cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit comprises a sleeve 11, wherein a plurality of fixed blocks 12 are arranged on one side of the sleeve 11 at equal angles, the fixed blocks 12 are fixedly connected with the sleeve 11, an installation block 13 is fixed on one side of each fixed block 12, a leather prying plate 14 is fixedly connected to one side of each installation block 13, and the surface of one side of each leather prying plate 14 is obliquely arranged;
one side of the fixed block 12 is provided with a spring installation groove, a first compression spring 15 is arranged in the spring installation groove, one end of the first compression spring 15 is fixedly connected with the fixed block 12, the other end of the first compression spring 15 is fixedly connected with a floating strip 16, the floating strips 16 are in sliding fit with the spring mounting grooves, the side surfaces of the floating strips 16 are rotatably connected with a connecting shaft 17, rollers 18 are arranged on the outer side of the connecting shaft 17, the connecting shaft 17 is fixedly connected with the roller 18, the outer side of one end of the connecting shaft 17 far away from the roller 18 is fixedly connected with a poking block 19, a mounting sleeve seat 20 is arranged right above the toggle block 19, the mounting sleeve seat 20 is fixedly connected with the floating strip 16, a second compression spring 21 is arranged in the mounting sleeve seat 20, one end of the second compression spring 21 is fixedly connected with the mounting sleeve seat 20, and the other end of the second compression spring 21 is fixedly connected with a wedge-shaped sliding block 22.
A plurality of regulation spouts 102 have been seted up to angle such as sleeve 11's outside surface, are provided with adjusting block 23 in adjusting spout 102, and adjusting block 23's side is seted up threaded hole, threaded hole is provided with threaded rod 24, threaded rod 24's both ends are all rotated with sleeve 11 through the bearing and are connected, and threaded rod 24 passes through thread engagement with adjusting block 23 and is connected, threaded rod 24's the one end outside is provided with adjust knob 25, adjust knob 25 and threaded rod 24 fixed connection, mounting groove 103 has been seted up to adjusting spout 102's bottom, is provided with cutting blade 26 in the mounting groove 103, cutting blade 26 and adjusting block 23's bottom fixed connection.
The inner of the sleeve 11 is provided with a line pressing block 28 at an equal angle, two third compression springs 27 are symmetrically arranged between the line pressing block 28 and the sleeve 11, and two ends of each third compression spring 27 are respectively and fixedly connected with the sleeve 11 and the line pressing block 28.
One side that fixed block 12 was kept away from to sleeve 11 is provided with rolling disc 29, and rolling disc 29 rotates with sleeve 11 to be connected, rolling disc 29 has been seted up on one side and has been opened and shut spout 104, and the spout 104 that opens and shuts is the hexagon structure, the equal angle is provided with six opening and shutting blades 30 in the rolling disc 29, and the equal fixedly connected with in one side of opening and shutting blades 30 opens and shuts slider 31, opening and shutting slider 31 sets up in the spout 104 that opens and shuts, and opening and shutting slider 31 and rolling disc 29 sliding fit, opening and shutting blades 30 keep away from one side fixedly connected with uide pin 32 that opens and shuts slider 31, six guide ways 105 have been seted up to the equal angle in one side of rolling disc 29, and uide pin 32 sets up in guide way 105, and uide pin 32 and rolling disc 29 sliding connection.
The number of the fixed blocks 12, the adjusting chutes 102 and the wire pressing blocks 28 corresponds to the number of the wire stripping grooves 101.
The groove bottom of the adjusting sliding groove 102 is obliquely arranged, the threaded rod 24 is obliquely arranged, and the inclination angle of the threaded rod 24 is the same as that of the groove bottom.
The outer jacket 10 is a high-flame-retardant outer jacket layer, the steel wire armor layer 9 is a fine steel wire inclined mesh woven structure, the inner jacket layer 8 is a low-smoke halogen-free flame-retardant polyolefin inner cushion layer, the water-blocking layer 6 is a woven belt formed by weaving water-blocking yarns consisting of a polyester fabric base layer and expansion particles bonded on the polyester fabric base layer, the metal shielding layer 5 is copper strip shielding, a double-layer copper strip gap is adopted for wrapping, the surface of the double-layer copper strip gap is tightened by reversely wrapping copper wires, and the insulating layer 3 is made of a cross-linked polyethylene material.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A method for peeling an outer protective layer of a power cable special for cross-linked polyethylene insulation low-smoke halogen-free flame-retardant rail transit is characterized by comprising the following steps: the power cable comprises a conductor (1), wherein the outer side of the conductor (1) is sequentially wrapped with a conductor shielding layer (2), an insulating layer (3), an insulating shielding layer (4), a metal shielding layer (5), a water-blocking layer (6), an aluminum-plastic composite tape (7), an inner protection layer (8), a steel wire armor layer (9) and an outer protection layer (10), and one end of the outer protection layer (10) is provided with a plurality of wire stripping grooves (101) at equal angles;
the peeling device used in the outer protection layer peeling method comprises a sleeve (11), a plurality of fixed blocks (12) are arranged on one side edge of the sleeve (11) at equal angles, the fixed blocks (12) are fixedly connected with the sleeve (11), an installation block (13) is fixed on the radial inner side of each fixed block (12), an axial leather prying plate (14) is fixedly connected to the side edge, facing the sleeve, of each installation block (13), and the surface of the radial outer side of each leather prying plate (14) is obliquely arranged; the spring mounting groove is formed in the fixed block (12), a first compression spring (15) is arranged in the spring mounting groove, one end of the first compression spring (15) is fixedly connected with the fixed block (12), the other end of the first compression spring (15) is fixedly connected with a floating strip (16), the floating strip (16) is in sliding fit with the spring mounting groove, the side surface of the floating strip (16) is rotatably connected with a connecting shaft (17), a roller (18) is arranged on the outer side of the connecting shaft (17), the connecting shaft (17) is fixedly connected with the roller (18), a poking block (19) is fixedly connected on the outer side of one end, far away from the roller (18), of the connecting shaft (17), a mounting sleeve seat opposite to the poking block is fixedly connected on the floating strip, a second compression spring (21) is arranged in the mounting sleeve seat (20), one end of the second compression spring (21) is fixedly connected with the mounting sleeve seat (20), the other end of the second compression spring (21) is fixedly connected with a wedge-shaped sliding block (22), and the wedge-shaped sliding block is matched with the poking block;
the surface of the outer side of the sleeve (11) is provided with a plurality of adjusting sliding grooves (102) at equal angles, adjusting sliding blocks (23) are arranged in the adjusting sliding grooves (102), threaded holes are formed in the adjusting sliding blocks (23), threaded rods (24) are arranged in the threaded holes, two ends of each threaded rod (24) are rotatably connected with the sleeve (11) through bearings, the threaded rods (24) are connected with the adjusting sliding blocks (23) in a threaded engagement mode, adjusting knobs (25) are arranged on the outer sides of one ends of the threaded rods (24), the adjusting knobs (25) are fixedly connected with the threaded rods (24), mounting grooves (103) are formed in the radial inner sides of the adjusting sliding grooves (102), cutting blades (26) are arranged in the mounting grooves (103), and the cutting blades (26) are fixedly connected with the adjusting sliding blocks (23);
a plurality of line pressing blocks (28) are arranged in the sleeve (11) at equal angles, two third compression springs (27) are symmetrically arranged between each line pressing block (28) and the sleeve (11), and two ends of each third compression spring (27) are fixedly connected with the sleeve (11) and the line pressing block (28) respectively;
a rotating disc (29) is arranged on one side of the sleeve (11) far away from the fixed block (12), the rotating disc (29) is rotationally connected with the sleeve (11), one side of the rotating disc (29) is provided with an opening and closing chute (104), the track of the opening and closing chute (104) is in a hexagonal structure, six opening and closing blades (30) are arranged in the rotating disc (29) at equal angles, one side of each opening and closing blade (30) is fixedly connected with an opening and closing sliding block (31), the opening and closing slide block (31) is arranged in the opening and closing slide groove (104), the opening and closing slide block (31) is in sliding fit with the rotating disc (29), one side of the opening and closing blade (30) far away from the opening and closing slide block (31) is fixedly connected with a guide pin (32), six guide grooves (105) are formed in the other side of the rotating disc (29) at equal angles, guide pins (32) are arranged in the guide grooves (105), and the guide pins (32) are connected with the rotating disc (29) in a sliding mode;
the outer protective layer peeling method specifically comprises the following steps:
the method comprises the following steps: firstly, rotating a rotating disc (29) to enable a guide pin (32) to slide in a guide groove (105) to drive six opening and closing blades (30) to be separated from each other, enabling a cable to penetrate through a gap between the opening and closing blades (30), extruding a wire pressing block (28), enabling the wire pressing block (28) to be coated on the outer side of the cable under the action of a third compression spring (27), rotating the cable to enable a wire stripping groove (101) on an outer protective layer (10) to be aligned with a cutting blade (26), pushing the cable to the direction close to a fixing block (12), enabling a prying plate (14) to enter the gap between the outer protective layer (10) and a steel wire armor layer (9), and enabling one end of the outer protective layer (10) to be arranged between the prying plate (14) and a roller (18);
step two: the rotating disc (29) is rotated reversely, the opening and closing blades (30) are folded mutually, the opening and closing blades (30) just contact with the outer side of a cable, then the adjusting knob (25) is rotated to rotate the threaded rod (24) and drive the adjusting slider (23) meshed and connected with the threaded rod (24) to slide in the adjusting chute (102), the cutting blade (26) enters the stripping groove (101), the sleeve (11) is pulled in the direction far away from the stripping groove (101), the cutting blade (26) moves along the stripping groove (101) and cuts the outer sheath (10), when the sleeve (11) is pulled, the cut outer sheath (10) is split and separated, in the process of splitting and separating, because the outer side of the connecting shaft (17) is fixed with the shifting block (19), the shifting block (19) is matched with the wedge-shaped slider (22), so that the shifting block (17) can only rotate continuously in one direction, the outer protective layer (10) between the leather prying plate (14) and the roller (18) is pressed and fixed after the roller (18) is locked after rotating towards the other direction;
step three: after the required peeling length is obtained, the sleeve (11) is stopped to be pulled, the adjusting knob (25) is rotated reversely, the threaded rod (24) is rotated reversely, the adjusting slider (23) meshed and connected with the threaded rod (24) is driven to slide in the adjusting chute (102), the cutting blade (26) is separated from the outer protective layer (10), the floating strip (16) is lifted, the fixing of the prying leather plate (14) and the roller (18) to the end part of the outer protective layer (10) is removed, the rotating disc (29) is rotated, the opening and closing blades (30) are separated from each other, the cable is drawn out from the sleeve (11), the cut outer protective layer (10) is cut, and the outer protective layer (10) is peeled.
2. The method for peeling the outer sheath of the power cable special for the cross-linked polyethylene insulation low-smoke zero-halogen flame-retardant rail transit according to claim 1, wherein the number of the fixing blocks (12), the adjusting sliding grooves (102) and the wire pressing blocks (28) corresponds to the number of the wire stripping grooves (101).
3. The method for peeling the outer sheath of the power cable special for the cross-linked polyethylene insulation low-smoke zero-halogen flame-retardant rail transit according to claim 1, wherein the groove bottom of the adjusting chute (102) is arranged in an inclined manner, the threaded rod (24) is arranged in an inclined manner, and the inclination angle of the threaded rod (24) is the same as that of the groove bottom.
4. The method for peeling the outer protective layer of the power cable special for the cross-linked polyethylene insulation low-smoke zero-halogen flame-retardant rail transit according to claim 1, wherein the outer protective layer (10) is a high-flame-retardant outer covering layer, the steel wire armor layer (9) is a fine steel wire inclined mesh woven structure, the inner protective layer (8) is a low-smoke zero-halogen flame-retardant polyolefin inner cushion layer, the water-blocking layer (6) is a woven belt woven by water-blocking yarns formed by a polyester fabric base layer and expanded particles adhered to the polyester fabric base layer, the metal shielding layer (5) is a copper strip shield, the copper strip shield is wound by double-layer copper strip gaps and then is tightly tied by reversely wound copper wires on the surface, and the insulating layer (3) is made of a cross-linked polyethylene material.
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| CN112768134B (en) * | 2021-01-06 | 2022-06-28 | 江西新吉电缆有限公司 | Cross-linked polyethylene insulation halogen-free low-smoke flame-retardant shielding computer cable |
| CN112670016B (en) * | 2021-01-13 | 2022-04-05 | 陕西通达电缆制造有限公司 | Environment-friendly high-temperature-resistant shielding fireproof flexible cable |
| CN113178281B (en) * | 2021-05-07 | 2023-01-24 | 安徽顺信线缆有限公司 | 5G uses 6A class shielded cable and preparation facilities thereof |
| CN115173325A (en) * | 2022-07-19 | 2022-10-11 | 江苏恒峰线缆有限公司 | High-voltage direct-current cross-linked polyethylene insulated power cable processing technology and equipment |
| CN115527725B (en) * | 2022-09-30 | 2023-06-16 | 红旗电缆电器仪表集团有限公司 | Crosslinked polyolefin insulation corrugated aluminum automobile wire harness processing equipment and method |
| CN115333007B (en) * | 2022-10-13 | 2022-12-20 | 江苏瑞仕达电气设备有限公司 | A device of skinning for electric wire and cable |
| CN118054345A (en) * | 2024-04-16 | 2024-05-17 | 江苏大地电缆有限公司 | Low-smoke halogen-free flame-retardant power cable installation equipment and installation method |
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