CN105006282A - Thin-wall cable used for smart energy motor train unit and production technology thereof - Google Patents
Thin-wall cable used for smart energy motor train unit and production technology thereof Download PDFInfo
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- CN105006282A CN105006282A CN201510451606.1A CN201510451606A CN105006282A CN 105006282 A CN105006282 A CN 105006282A CN 201510451606 A CN201510451606 A CN 201510451606A CN 105006282 A CN105006282 A CN 105006282A
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Abstract
The invention discloses a thin-wall cable used for a smart energy motor train unit and a production technology thereof. The cable comprises a cable core, a second polyester tape, a second copper wire shielding layer, a third polyester tape and a thin-wall sheath which are arranged from inside to outside in turn. The cable core comprises seven wire cores and six bundles of edge gap filling cotton ropes which are filled between the wire cores and the second polyester tape. Each wire core comprises two insulating wire cores, an internal sheath, a first copper wire shielding layer and a first polyester tape which are arranged from inside to outside. Each insulating wire core comprises conductors and thin-wall insulation which are arranged from inside to outside. The number of the cotton ropes in each bundle of edge gap filling cotton ropes is confirmed according to the formula: S=1.263D2/(0.7854x6d2), D is the external diameter of the wire core, and d is the external diameter of the cotton wire. The cable is compact in structure, complete in appearance, small in cable external diameter, high in flexibility and excellent in performance.
Description
Technical field
The present invention relates to locomotive cable field, refers in particular to a kind of wisdom energy motor train unit thin-walled cable and production technology thereof.
Background technology
Motor train unit technology develop rapidly in recent years, intra-locomotive equipment also becomes increasingly complex, thus the demand of cable is increased, and interior space is very limited, require the outside diameter of cable little and compact conformation, but traditional processing technology cannot meet the production of high accuracy cable, therefore need to improve the structure of cable and processing technology.Motor train unit thin-walled cable is used for the connecting of motor train unit inside, and lays narrow space, requires very high to the roundness of cable, external diameter and pliability.In order to reduce, the outside diameter of cable can only be reduced by conductor diameter and insulate, sheath reduces thickness and realizes, and therefore need to make following improvement: 1. conductor arrangement is compact, twisting pitch reduces, and adopts suitable mould to press; 2. insulating material requires high flame retardant, high-insulativity, high strength and splendid heat-resisting cold tolerance, the quenching taking suitable measure to avoid insulating and the percentage elongation that causes declines and hardness increases; 3. fill full during cable cabling, the cotton cord that therefore opposite side gap is filled will calculate accurately; 4. jacket thickness reduces, and adopts squash type to produce, ensures construction of cable rounding, apparent smooth.
Summary of the invention
First object of the present invention is to provide a kind of wisdom energy motor train unit thin-walled cable.
The technical scheme realizing the present invention's first object is a kind of wisdom energy motor train unit thin-walled cable, is followed successively by cable core, the second polyester belt, the second shielding layer of copper wires, the 3rd polyester belt and thin-walled sheath from inside to outside; Described cable core comprises seven cores and the six bundle limit gaps be filled between core and the second polyester belt fill cotton cord; Described every root core comprises two insulated wire cores, inner sheath, the first shielding layer of copper wires and the first polyester belt from the inside to the outside; Described insulated wire cores is conductor and thinwalled insulation from the inside to the outside; Described often bundle limit gap is filled cotton cord radical in cotton cord and is determined according to formula: S=1.263D
2/ (0.7854 × 6d
2), D is the external diameter of core, and d is the external diameter of cotton thread.
The sectional area of described conductor is 0.5mm
2, adopt 19 rhizoid footpaths to be that the tin-coated copper wire of 0.18mm is greater than 16mm by pitch stranded; Described thinwalled insulation thickness is 0.18mm; Described inner sheath thickness is 0.15mm; First shielding layer of copper wires and the second shielding layer of copper wires are proof copper-wire braided, and count is 80%; Described first polyester belt, the second polyester belt and the 3rd polyester tape thickness are 0.05mm, and width is 5mm, the rate of putting up 20% ~ 25% of polyester belt; Described thin-walled jacket thickness is 0.20mm.
The copper wire string diameter of the first shielding layer of copper wires is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The copper wire string diameter of described second shielding layer of copper wires is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm.
Described core adopts one, center, the arrangement architecture of the peripheral six roots of sensation; Described limit gap is filled cotton cord and is filled in 6 gaps between adjacent core respectively, and the diameter that limit gap fills cotton cord is 0.3mm, and sectional area is 2.58mm
2, cotton thread radical is 36.
Described thinwalled insulation, inner sheath and thin-walled sheath all adopt the S2 type cross-linking radiation polyolefin polymer meeting EN50306 standard.
Second object of the present invention is to provide a kind of production technology of wisdom energy motor train unit thin-walled cable.
The technical scheme realizing the present invention's second object is a kind of production technology of wisdom energy motor train unit thin-walled cable, comprises following steps:
Step one: determine the construction of cable;
Step 2: the preparation of insulated wire cores: conductor adopts tinned copper wire stranded, and radical is 19, and string diameter is 0.18mm, and arrangement mode is internal layer 1, secondary outer 6, and outer 12, twisting pitch is greater than 16mm, employing aperture is that the Buddha's warrior attendant mould of 0.9mm presses; Thinwalled insulation is cross-linking radiation polyolefin polymer, and the thickness of thinwalled insulation is 0.18mm; Every 2 insulated wire cores stranded composition line pair, totally 7 lines pair, each line strand pitch is not more than 15mm; Externally extrude inner sheath at each line, weave the first shielding layer of copper wires and wrapped first polyester belt; Inner sheath adopts cross-linking radiation polyolefin polymer, and inner sheath thickness is 0.15mm; First shielding layer of copper wires is proof copper-wire braided, and count is 80%, and copper wire string diameter is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The rate of putting up 20% ~ 25% of the first polyester belt;
Step 3: prepare cable core: 7 cores are carried out stranding, centered by arrangement mode one, the mode of the 1+6 of the peripheral six roots of sensation, fills limit gap and fills cotton cord, simultaneously wrapped second polyester belt, the rate of putting up 20% ~ 25% of polyester belt between adjacent core;
Step 4: weave the second shielding layer of copper wires outward at the second polyester belt, described second shielding layer of copper wires is proof copper-wire braided, and count is 80%; Copper wire string diameter is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm;
Step 5: outer around the 3rd polyester belt at the second shielding layer of copper wires, the rate of putting up 20% ~ 25% of polyester belt;
Step 6: extrude thin-walled sheath outside the 3rd polyester belt, sheath is cross-linking radiation polyolefin polymer, and jacket thickness is 0.2mm;
Step 7: adopt electron accelerator to carry out cross-linking radiation.
In described step 2, the procedure of processing of thinwalled insulation is: adopt the pre-heat conductor of induction type pre-heating device, and when the temperature of conductor reaches 100 DEG C-120 DEG C, adopt plsitive mold to extrude insulating material, body temperature is 190 DEG C, and head extrusion temperature is 220 DEG C; Insulated wire cores is soaked in the water of 80 DEG C and carries out tempering half an hour.
In described step 3, the diameter that limit gap fills cotton cord is 0.3mm, and volume is 2.58mm
3, cotton thread radical is 36.
Take overall irradiation in described step 7, irradiation energy is 1.5Mev, and irradiation dose is 3.0m/min/mA.
Adopt technique scheme, patent of the present invention has following beneficial outcomes: (1) due to the insulation of cable of the present invention and sheath very thin, easily occur not rounding, therefore the present invention is through large quantity research and accurate Calculation, determine the computing formula of filling cotton cord, make the roundness substantially increasing cable, the construction of cable is compact, outward appearance rounding, the outside diameter of cable is little, pliability is high, and pull resistance is good, superior performance.
(2) conductor of the present invention adds and adopts man-hour tinned copper wire stranded, and radical is 19, and string diameter is 0.18mm, and arrangement mode is internal layer 1, secondary outer 6, and outer 12, twisting pitch is greater than 16mm, adopts aperture to be that the Buddha's warrior attendant mould of 0.9mm presses; Effectively reduce the burr of conductor diameter and conductive surface, effectively raise the roundness of conductor simultaneously.
(3) thinwalled insulation very thin thickness, conductor temperature is if the words of normal temperature, conductor can make insulation temperature rapid drawdown, therefore thinwalled insulation of the present invention add first pre-heat conductor in man-hour, effectively reduce the contraction of insulating material and improve the smoothness of insulation, effectively add the adhesion of conductor and insulating material, tempering process then allows the strand of insulating material adjust fully simultaneously.Improve elongation at break and the pliability of insulating material.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is structural representation of the present invention.
Attached number in the figure is: core 1, insulated wire cores 11, conductor 11-1, thinwalled insulation 11-2, inner sheath 12, first shielding layer of copper wires 13, first polyester belt 14, limit gap fill cotton cord 2, second polyester belt 3, second shielding layer of copper wires 4, the 3rd polyester belt 5, thin-walled sheath 6.
Embodiment
(embodiment 1)
See Fig. 1, a kind of wisdom energy motor train unit thin-walled cable of the present embodiment, be followed successively by cable core, the second polyester belt 3, second shielding layer of copper wires 4, the 3rd polyester belt 5 and thin-walled sheath 6 from inside to outside; Cable core comprises seven cores 1 and the six bundle limit gaps be filled between core 1 and the second polyester belt 3 fill cotton cord 2; Every root core 1 comprises two insulated wire cores 11, inner sheath 12, first shielding layer of copper wires 13 and the first polyester belt 14 from the inside to the outside; Insulated wire cores 11 is conductor 11-1 and thinwalled insulation 11-2 from the inside to the outside; Often restraint cotton cord radical in limit gap filling cotton cord 2 to determine according to formula: S=1.263D
2/ 0.7854 × 6d
2, D is the external diameter of core 1, and d is the external diameter of cotton thread.The sectional area of conductor 11-1 is 0.5mm
2, adopt 19 rhizoid footpaths to be that the tin-coated copper wire of 0.18mm is greater than 16mm by pitch stranded; Thinwalled insulation 11-2 thickness is 0.18mm; Inner sheath 12 thickness is 0.15mm; First shielding layer of copper wires 13 and the second shielding layer of copper wires 4 are proof copper-wire braided, and count is 80%; First polyester belt 14, second polyester belt 3 and the 3rd polyester belt 5 thickness are 0.05mm, and width is 5mm, the rate of putting up 20% ~ 25% of polyester belt; Thin-walled sheath 6 thickness is 0.20mm.The copper wire string diameter of the first shielding layer of copper wires 11-4 is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The copper wire string diameter of the second shielding layer of copper wires 4 is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm.Core 1 adopts one, center, the arrangement architecture of the peripheral six roots of sensation; Limit gap is filled cotton cord 2 and is filled in 6 gaps between adjacent core 1 respectively, and the diameter that limit gap fills cotton cord 2 is 0.3mm, and sectional area is 2.58mm
2, cotton thread radical is 36.Thinwalled insulation 11-2, inner sheath 12 and thin-walled sheath 6 all adopt the S2 type cross-linking radiation polyolefin polymer meeting EN50306 standard.
Production technology is:
Step one: determine that the construction of cable is as claim 5;
Step 2: the preparation of insulated wire cores 11: conductor 11-1 adopts tinned copper wire stranded, and radical is 19, and string diameter is 0.18mm, and arrangement mode is internal layer 1, secondary outer 6, and outer 12, twisting pitch is greater than 16mm, employing aperture is that the Buddha's warrior attendant mould of 0.9mm presses; Thinwalled insulation 11-2 is cross-linking radiation polyolefin polymer, and the thickness of thinwalled insulation 11-2 is 0.18mm; Every 2 insulated wire cores 11 stranded composition line pair, totally 7 lines pair, each line strand pitch is not more than 15mm; Externally extrude inner sheath 12 at each line, weave the first shielding layer of copper wires 13 and wrapped first polyester belt 14; Inner sheath 12 adopts cross-linking radiation polyolefin polymer, and inner sheath thickness is 0.15mm; First shielding layer of copper wires 11-4 is proof copper-wire braided, and count is 80%, and copper wire string diameter is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The rate of putting up 20% ~ 25% of the first polyester belt 11-5; The procedure of processing of thinwalled insulation 11-2 is: adopt the pre-heat conductor 11 of induction type pre-heating device, and when the temperature of conductor 11 reaches 100 DEG C-120 DEG C, adopt plsitive mold to extrude insulating material, body temperature is 190 DEG C, and head extrusion temperature is 220 DEG C; Insulated wire cores 11 is soaked in the water of 80 DEG C and carries out tempering half an hour.
Step 3: prepare cable core: 7 cores are carried out stranding, centered by arrangement mode one, the mode of the 1+6 of the peripheral six roots of sensation, fills limit gap and fills cotton cord 2, simultaneously wrapped second polyester belt 3, the rate of putting up 20% ~ 25% of polyester belt between adjacent core 1; The diameter that limit gap fills cotton cord 2 is 0.3mm, and volume is 2.58mm
3, cotton thread radical is 36;
Step 4: braiding the second shielding layer of copper wires 4, second shielding layer of copper wires 4 is proof copper-wire braided outside the second polyester belt 3, and count is 80%; Copper wire string diameter is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm;
Step 5: outer around the 3rd polyester belt 5 at the second shielding layer of copper wires 4, the rate of putting up 20% ~ 25% of polyester belt;
Step 6: extrude thin-walled sheath 6 outside the 3rd polyester belt 5, sheath 6 is cross-linking radiation polyolefin polymer, and sheath 6 thickness is 0.2mm;
Step 7: adopt electron accelerator to carry out cross-linking radiation.Take overall irradiation, irradiation energy is 1.5Mev, and irradiation dose is 3.0m/min/mA.
Above-described specific embodiment; the object of patent of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a wisdom energy motor train unit thin-walled cable, is characterized in that: be followed successively by cable core, the second polyester belt (3), the second shielding layer of copper wires (4), the 3rd polyester belt (5) and thin-walled sheath (6) from inside to outside; Described cable core comprises seven cores (1) and the six bundle limit gaps be filled between core (1) and the second polyester belt (3) fill cotton cord (2); Described every root core (1) comprises two insulated wire cores (11), inner sheath (12), the first shielding layer of copper wires (13) and the first polyester belt (14) from the inside to the outside; Described insulated wire cores (11) is conductor (11-1) and thinwalled insulation (11-2) from the inside to the outside; The described middle cotton cord radical in limit gap filling cotton cord (2) of often restrainting is determined according to formula: S=1.263D
2/ (0.7854 × 6d
2), D is the external diameter of core (1), and d is the external diameter of cotton thread.
2. a kind of wisdom energy motor train unit thin-walled cable according to claim 1, is characterized in that: the sectional area of described conductor (11-1) is 0.5mm
2, adopt 19 rhizoid footpaths to be that the tin-coated copper wire of 0.18mm is greater than 16mm by pitch stranded; Described thinwalled insulation (11-2) thickness is 0.18mm; Described inner sheath (12) thickness is 0.15mm; First shielding layer of copper wires (13) and the second shielding layer of copper wires (4) are proof copper-wire braided, and count is 80%; Described first polyester belt (14), the second polyester belt (3) and the 3rd polyester belt (5) thickness are 0.05mm, and width is 5mm, the rate of putting up 20% ~ 25% of polyester belt; Described thin-walled sheath (6) thickness is 0.20mm.
3. a kind of wisdom energy motor train unit thin-walled cable according to claim 2, is characterized in that: the copper wire string diameter of the first shielding layer of copper wires (11-4) is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The copper wire string diameter of described second shielding layer of copper wires (4) is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm.
4. a kind of wisdom energy motor train unit thin-walled cable according to claim 3, is characterized in that: described core (1) adopts one, center, the arrangement architecture of the peripheral six roots of sensation; Described limit gap is filled cotton cord (2) and is filled in 6 gaps between adjacent core (1) respectively, and the diameter that limit gap fills cotton cord (2) is 0.3mm, and sectional area is 2.58mm
2, cotton thread radical is 36.
5. a kind of wisdom energy motor train unit thin-walled cable according to claim 4, is characterized in that: described thinwalled insulation (11-2), inner sheath (12) and thin-walled sheath (6) all adopt the S2 type cross-linking radiation polyolefin polymer meeting EN50306 standard.
6. a production technology for wisdom energy motor train unit thin-walled cable, is characterized in that comprising following steps:
Step one: determine that the construction of cable as claimed in claim 5;
Step 2: the preparation of insulated wire cores (11): conductor (11-1) adopts tinned copper wire stranded, radical is 19, and string diameter is 0.18mm, arrangement mode is internal layer 1, secondary outer 6, outer 12, twisting pitch is greater than 16mm, and employing aperture is that the Buddha's warrior attendant mould of 0.9mm presses; Thinwalled insulation (11-2) is cross-linking radiation polyolefin polymer, and the thickness of thinwalled insulation (11-2) is 0.18mm; Every 2 insulated wire cores (11) stranded compositions line pair, totally 7 lines pair, each line strand pitch is not more than 15mm; Externally extrude inner sheath (12) at each line, weave the first shielding layer of copper wires (13) and wrapped first polyester belt (14); Inner sheath (12) adopts cross-linking radiation polyolefin polymer, and inner sheath thickness is 0.15mm; First shielding layer of copper wires (11-4) is proof copper-wire braided, and count is 80%, and copper wire string diameter is 0.15mm, and number of spindles is 16, and every ingot radical is 5, and pitch is not more than 25mm; The rate of putting up 20% ~ 25% of the first polyester belt (11-5);
Step 3: prepare cable core: 7 cores are carried out stranding, centered by arrangement mode one, the mode of the 1+6 of the peripheral six roots of sensation, fill limit gap between adjacent core (1) and fill cotton cord (2), wrapped second polyester belt (3) simultaneously, the rate of putting up 20% ~ 25% of polyester belt;
Step 4: weave the second shielding layer of copper wires (4) outward at the second polyester belt (3), described second shielding layer of copper wires (4) is proof copper-wire braided, and count is 80%; Copper wire string diameter is 0.15mm, and number of spindles is 32, and every ingot radical is 5, and pitch is not more than 60mm;
Step 5: at the second shielding layer of copper wires (4) outward around the 3rd polyester belt (5), the rate of putting up 20% ~ 25% of polyester belt;
Step 6: extrude thin-walled sheath (6) outside the 3rd polyester belt (5), sheath (6) is cross-linking radiation polyolefin polymer, and sheath (6) thickness is 0.2mm;
Step 7: adopt electron accelerator to carry out cross-linking radiation.
7. the production technology of a kind of wisdom energy motor train unit thin-walled cable according to claim 6, it is characterized in that: in described step 2, the procedure of processing of thinwalled insulation (11-2) is: adopt the pre-heat conductor of induction type pre-heating device (11), when the temperature of conductor (11) reaches 100 DEG C-120 DEG C, plsitive mold is adopted to extrude insulating material, body temperature is 190 DEG C, and head extrusion temperature is 220 DEG C; Insulated wire cores (11) is soaked in the water of 80 DEG C and carries out tempering half an hour.
8. the production technology of a kind of wisdom energy motor train unit thin-walled cable according to claim 7, is characterized in that: in described step 3, and the diameter that limit gap fills cotton cord (2) is 0.3mm, and volume is 2.58mm
3, cotton thread radical is 36.
9. the production technology of a kind of wisdom energy motor train unit thin-walled cable according to claim 8, it is characterized in that: take overall irradiation in described step 7, irradiation energy is 1.5Mev, and irradiation dose is 3.0m/min/mA.
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|---|---|---|---|
| CN201510451606.1A CN105006282B (en) | 2015-07-28 | 2015-07-28 | A kind of wisdom energy EMUs thin-walled cable and production technology thereof |
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| CN105006282B (en) | 2016-12-07 |
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