CN110391606A - A kind of the soft of large-tonnage mentions line insulating tool and preparation method thereof - Google Patents
A kind of the soft of large-tonnage mentions line insulating tool and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
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- D07B1/00—Constructional features of ropes or cables
- D07B1/02—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics
- D07B1/025—Ropes built-up from fibrous or filamentary material, e.g. of vegetable origin, of animal origin, regenerated cellulose, plastics comprising high modulus, or high tenacity, polymer filaments or fibres, e.g. liquid-crystal polymers
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- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
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- D07B—ROPES OR CABLES IN GENERAL
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- D07B1/18—Grommets
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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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- D07B2201/2001—Wires or filaments
- D07B2201/2009—Wires or filaments characterised by the materials used
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- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/209—Jackets or coverings comprising braided structures
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- D07B2201/20—Rope or cable components
- D07B2201/2083—Jackets or coverings
- D07B2201/2092—Jackets or coverings characterised by the materials used
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- D07B2205/2046—Polyamides, e.g. nylons
- D07B2205/205—Aramides
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- D07B2401/2025—Environmental resistance avoiding corrosion
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- D07B2501/2076—Power transmissions
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Abstract
Soft the invention discloses a kind of large-tonnage mentions line insulating tool and preparation method thereof, the soft line insulating tool that mentions includes soft pull-rod and connector, the soft pull-rod both ends are annular in shape, the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is worked out by 12 strands of pbo fibers or aramid fiber, and the sheath material is moisture-proof silk line；The connector includes left plate, right side plate, pulley and the fixing piece for being connected and fixed left plate, right side plate, the pulley is arranged between left plate and right side plate, the fixing piece includes screw bolt and nut, the fixing piece is arranged three groups, wherein one group runs through left plate, pulley and right side plate.The soft of large-tonnage of the present invention mentions line insulating tool mechanical performance and excellent electric properties, effectively prevents cutting of the large-tonnage to pull-rod.
Description
Technical field
The present invention relates to a kind of UHV transmission line live line tools, and in particular to a kind of the soft of large-tonnage mentions line
Insulating tool and preparation method thereof.
Background technique
± 1100kV direct-current ultra high voltage hot line maintenance mentions the Work tool insulation load of line for large-tonnage at present
Generally using rigid insulation tool, including insulated pull rod, pull-rod etc., rigid insulation tool has the high and low elongation of intensity for part
The advantages of, but rigid insulation tool sizes, weight are larger, carry in actual job, it is inconvenient to transmit, the tower operator labor
Fatigue resistance is big；And the mechanical strength of livewire work soft insulating tool such as insulating cord, insulated flexible ladder etc. is low at present, elongation is big,
Route tower window gap is relatively small, mention the Line tool elongation it is excessive to cause in operation safe distance not easy to control, therefore not yet adopt
Use insulating cord as the insulation load part for mentioning the Line tool.To guarantee operation safety, while mitigating the labor intensity of operating personnel,
Improve working efficiency, it is necessary to develop a kind of the soft of novel large-tonnage and mention line insulating tool.
Notification number is that the Chinese invention patent of CN103532045B discloses a kind of 800kV extra-high voltage direct-current transmission line
150kN grades of rigid insulation pull-rods, it contains epoxy tube, and the both ends of the epoxy tube are respectively arranged with Taper Pipe section, the Taper Pipe section
Outer end bore be greater than inner end bore, be set with inner conical drogue in the Taper Pipe section, the conical surface that the two is in contact matches, the ring
The inner conical drogue at oxygen pipe both ends is connect with female connector outside centre and intermediate inscribed external threading respectively, and female connector and centre are inscribed outside the centre
Set is respectively arranged with the screw thread to match, is docked at the adjacent epoxy tube by female connector outside the centre and female connector in centre
Together, the outer end inner conical drogue on the epoxy tube of outermost end is threadedly coupled with stick end connector.Invention epoxy tube both ends setting
There is Taper Pipe section, is connect by the conical surface with inner conical drogue and connector, in traction process, the more draw the more tight, effectively prevent epoxy tube and connector
It falls off, ensure that the safety of personnel and equipment.But the patent inner conical drogue is connect by screw thread with stick end connector, load is concentrated,
Pull-rod easily snaps off, and intermediate load part is hard epoxy pipe, and weight is big, inconvenient to use.
The Chinese patent application of Publication No. CN103078269A discloses a kind of extra-high voltage electrified operation insulation soft drawn
Stick, including pull-rod ontology, pull-rod ontology both ends are connected separately with an end, and the pull-rod ontology is at least soft by two
Fiber is twisted, and described this volume surrounding of pull-rod is equipped with outer multiple insulating protective layer.The invention is manufactured by using soft fibre and is drawn
Stick ontology, this sample pull-rod can be coiled as needed, be readily transported and it is light-weight, tensile strength is high；Meanwhile the pull-rod
The outer multiple insulating protective layer that this volume surrounding adds makes this pull-rod have better insulation performance, also protects soft fibre.But
It is that the end of the soft pull-rod of the patent is connect with shaft tower end and conductor wire end, under large-tonnage stress condition, is easily broken off.
Summary of the invention
To overcome drawbacks described above, soft the purpose of the present invention is to provide a kind of large-tonnage proposes line insulating tool and its system
Make method.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of the soft of large-tonnage mentions line insulating tool, including soft pull-rod and connector, and the soft pull-rod both ends are in ring
Shape, the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of pbo fibers or aramid fiber
Fiber is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate, right side plate, pulley and company
The fixing piece of fixed left plate, right side plate is connect, the pulley is arranged between left plate and right side plate, the fixing piece packet
Screw bolt and nut is included, the fixing piece is arranged three groups, wherein one group runs through left plate, pulley and right side plate.
Preferably, the left plate, right side plate are cut by titanium alloy sheet.
Preferably, the pulley material is high-strength aluminum alloy.
Preferably, the density of the PBO fiber is 1.54-1.56g/cm3, breaking strength 3.5-4N/tex, fracture
Elongation 2.5-3.5%, regain 0.6-2%.
Preferably, the aramid fiber density is 1.44-1.46g/cm3, tensile strength 2.6-3.4GPa, fracture stretches
Long rate 1.8-3.2%.
Preferably, the diameter of the soft pull-rod inner core is 25-35mm.
A kind of soft production method for mentioning line insulating tool of large-tonnage, comprising the following steps:
(1) inner core of soft pull-rod is made using 12 strands of braiders；
(2) damp-proof treatment is carried out to inner core；
(3) both ends of inner core are inserted circlewise by hand；
(4) moisture-proof silk line is worked out into outside inner core sheath by 32 ingot jacket machines, inserts moisture-proof silk line joint by hand；
(5) left plate and right side Board position are fixed using the fixing piece in middle position on connector, by soft pull-rod both ends
Ring-type is overlapped on pulley, then moves into pulley between left plate, right side plate, finally uses one group of fixing piece by pulley and a left side
Side plate, right side plate position fix.
Preferably, damp-proof treatment described in step (2) is 30-60 DEG C of dry 0.5-1.5h.
The replacement operation of insulator, ± 1100kV are frequently necessary to during ± 1100kV direct-current ultra high voltage transmission line operation
The supply load of direct-current ultra high voltage transmission line of electricity be millions of kW, per hour the social economic value of load will in terms of ten million yuan,
Interruption maintenance will will lead to heavy economic losses.Therefore, studying a kind of live-line replacing insulator and proposing the Line tool research has
Highly important meaning.Insulator and wire weight are larger in ± 1100kV direct-current ultra high voltage transmission line of electricity, are used for large-tonnage
The Work tool insulation load part for mentioning line includes rigid insulation tool and soft insulating tool, and rigid insulation tool includes that insulation is drawn
Stick, pull-rod manufacture (CN103532045B using epoxy phenolics and glass cloth curing molding；Yi Hui, China's livewire work are used
The status and prospect of insulation pole stock, high-voltage technology；GB 13398-2008 livewire work hollow pipe, filling pipe and it is solid absolutely
Edge stick；Gao Kunpeng etc., extra high voltage direct current transmission line straight line V insulator string charged replacement instrument, Chinese New Products
Deng), using 10 m of insulated lengths or so, and weight is big (general 80 kN grades 26 kg or more that weigh), even if segmentation group
It closes, also extremely inconvenient transport and operation；Soft insulating tool includes insulating cord, and insulating cord production method has process, set to knit and weave
Although technique, tool weight considerably reduce, but there are mechanical strengths it is low, elongation is big the problems such as, but to a certain extent
Meeting the demand of UHV transmission line livewire work, (auspicious etc. to text, extra-high voltage electrified operation soft insulating pull-rod is ground
System, China Power).
Tower structure form, wire type and stress, insulator knot of the present invention according to ± 1100 direct-current extra-high voltage lines
Structure size, the assembling form of fitting, line span carry out statistics and comprehensive analysis, convenient in conjunction with extra-high voltage electrified events in operation
Operation midway is transported, according to the dangerous point that its specific stress condition and original insulation pull-rod are easy to appear, in soft pull-rod two
End installs connector additional and selects suitable production method, achieves following positive beneficial effect:
Positive beneficial effect of the invention:
1. the present invention is by installing connector additional at soft pull-rod both ends, the both ends of soft pull-rod are annular in shape, and three are arranged on connector
Group bolt and nut fixing piece, soft pull-rod both ends annulus are overlapped with the pulley on connector, increase forced contact area, point
Dissipate soft pull-rod stress, then by the other end of soft pull-rod both ends connector by fixing piece bolt and nut respectively with shaft tower end
It is fixed with wire lifting device end, to large-tonnage conducting wire and insulator load, then carries out the operation such as replacing insulator, avoid existing
There are soft pull-rod both ends in technology to effectively prevent directly with stress concentration problem caused by the contact of shaft tower end and conductor wire end
Cutting of the large-tonnage to pull-rod.
2. soft pull-rod elongation≤2.5% of the present invention, maximum use load 200kN, mechanical performance is excellent；Switching impulse
Dry withstanding voltage test and direct current are done withstanding voltage test and are passed through, and no flashover is without fever, excellent electric properties, be suitble to ±
1100kV direct-current ultra high voltage hot line maintenance.
3. inner core of the present invention is worked out by 12 strands of pbo fibers or aramid fiber, the intensity of pbo fiber, mould
Amount, heat resistance and flame resistance are had excellent performance, in addition, the impact resistance of pbo fiber, rub resistance and dimensional stability are very excellent
It is different and light and soft, it is highly desirable textile raw material；Aramid fiber has superhigh intensity, high-modulus and high temperature resistant, resistance to
Excellent performances, pbo fiber or the aramid fibers such as acid is alkaline-resisting, light-weight, insulate, is anti-aging, life cycle is long are defeated for producing
The soft lifting tool load part of electric line livewire work.The sheath material is moisture-proof silk line, moisture-proof silk line it is soft and
High resilience, drawing force is high, and heat-resist, excellent insulation performance plays heart for the jacket portions of soft pull-rod inner core
Protective effect.
4. left plate of the present invention, right side plate are cut by titanium alloy sheet, significantly reduces and mention line insulating tool
Weight；The pulley material is high-strength aluminum alloy, and high-strength aluminum alloy density is small, intensity is high, processing performance is good and weldering
Function admirable is connect, the weight of soft pull-rod is alleviated, has dispersed the stress of soft pull-rod, the work for improving soft pull-rod is negative
Lotus.
Detailed description of the invention
Fig. 1 is the soft soft pull-rod structural schematic diagram for mentioning line insulating tool of large-tonnage of the present invention；
Fig. 2 is the soft connector main view for mentioning line insulating tool of large-tonnage of the present invention；
Fig. 3 is the soft connector side view for mentioning line insulating tool of large-tonnage of the present invention；
Fig. 4 is the soft structural schematic diagram for mentioning line insulating tool of large-tonnage of the present invention；
In figure: the soft pull-rod of 1-, 2- left plate, 3- right side plate, 4- pulley, first group of fixing piece of 5-, second group of fixing piece of 6-, 7-
Third group fixing piece, 8- fixation hole.
Specific embodiment
Below with reference to some specific embodiments, the present invention is further described.
Embodiment 1
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of PBO fibres
Dimension is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3, pulley 4 and connects
The fixing piece of fixed left plate 2, right side plate 3 is connect, the pulley 4 is arranged between left plate 2 and right side plate 3, and described consolidates
Determining part includes screw bolt and nut, and the left plate 2, right side plate 3 open up and the matched fixation hole 8 of fixing piece bolt, institute respectively
Three groups of the fixing piece setting stated, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece 7
Through left plate 2, pulley 4 and right side plate 3.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
4 material of pulley is high-strength aluminum alloy 7075.
The density of the PBO fiber is 1.56g/cm3, breaking strength 3.7N/tex, elongation at break 2.5%, time
Damp rate is 0.6%.
The diameter of the soft pull-rod inner core is 25mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage, comprising the following steps:
(1) inner core of soft pull-rod is made using 12 strands of braiders；
(2) damp-proof treatment is carried out in 30-60 DEG C of dry 0.5-1.5h to inner core；
(3) both ends of inner core are inserted circlewise by hand；
(4) moisture-proof silk line is worked out into outside inner core sheath by 32 ingot jacket machines, inserts moisture-proof silk line joint by hand；
(5) left plate and right side Board position are fixed using second group of fixing piece 6 in middle position on connector, by soft pull-rod
The ring-type at both ends is overlapped on pulley, then moves into pulley between left plate 2, right side plate 3, and then third group fixing piece 7 will
Pulley 4 and the position of left plate 2, right side plate 3 are fixed, and are distinguished by first group of fixing piece 5 on the connector of soft pull-rod both ends
It is fixed with shaft tower fixation hole and wire lifting device.
Embodiment 2
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of PBO fibres
Dimension is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3, pulley 4 and connects
The fixing piece of fixed left plate 2, right side plate 3 is connect, the pulley 4 is arranged between left plate 2 and right side plate 3, and described consolidates
Determining part includes screw bolt and nut, and the left plate 2, right side plate 3 open up and the matched fixation hole 8 of fixing piece bolt, institute respectively
Three groups of the fixing piece setting stated, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece 7
Through left plate 2, pulley 4 and right side plate 3.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
The pulley material is high-strength aluminum alloy 7A04.
The density of the PBO fiber is 1.54g/cm3, breaking strength 3.7N/tex, elongation at break 3.5%, time
Damp rate is 2%.
The diameter of the soft pull-rod inner core is 25mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage is same as Example 1, does not repeat.
Embodiment 3
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of aramid fibers
Fiber is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3,4 and of pulley
It is connected and fixed the fixing piece of left plate 2, right side plate 3, the pulley 4 is arranged between left plate 2 and right side plate 3, described
Fixing piece includes screw bolt and nut, the left plate 2, right side plate 3 open up respectively with the matched fixation hole 8 of fixing piece bolt,
Three groups of the fixing piece setting, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece
7 run through left plate 2, pulley 4 and right side plate 3.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
The pulley material is high-strength aluminum alloy 7A09.
The aramid fiber density is 1.45g/cm3, tensile strength 2.9GPa, elongation at break 2.1%.
The diameter of the soft pull-rod inner core is 32mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage is same as Example 1, does not repeat.
Embodiment 4
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of aramid fibers
Fiber is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3,4 and of pulley
It is connected and fixed the fixing piece of left plate 2, right side plate 3, the pulley 4 is arranged between left plate 2 and right side plate 3, described
Fixing piece includes screw bolt and nut, the left plate 2, right side plate 3 open up respectively with the matched fixation hole 8 of fixing piece bolt,
Three groups of the fixing piece setting, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece
7 run through left plate 2, pulley 4 and right side plate 3.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
The pulley material is high-strength aluminum alloy 7A04.
The aramid fiber density is 1.45g/cm3, tensile strength 2.9GPa, elongation at break 2.1%.
The diameter of the soft pull-rod inner core is 32mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage is same as Example 1, does not repeat.
Embodiment 5
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of PBO fibres
Dimension is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3, pulley 4 and connects
The fixing piece of fixed left plate 2, right side plate 3 is connect, the pulley 4 is arranged between left plate 2 and right side plate 3, and described consolidates
Determining part includes screw bolt and nut, and the left plate 2, right side plate 3 open up and the matched fixation hole 8 of fixing piece bolt, institute respectively
Three groups of the fixing piece setting stated, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece 7
Through left plate 2, pulley 4 and right side plate 3.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
The pulley material is high-strength aluminum alloy 7075.
The density of the PBO fiber is 1.56g/cm3, breaking strength 3.7N/tex, elongation at break 2.5%, time
Damp rate is 0.6%.
The diameter of the soft pull-rod inner core is 32mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage is same as Example 1, does not repeat.
Embodiment 6
Referring to Fig. 1-4, a kind of the soft of large-tonnage proposes line insulating tool, including soft pull-rod 1 and connector, the soft drawing
Stick both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 strands of aramid fibers
Fiber is worked out, and the sheath material is moisture-proof silk line；The connector includes left plate 2, right side plate 3,4 and of pulley
It is connected and fixed the fixing piece of left plate 2, right side plate 3, the pulley 4 is arranged between left plate 2 and right side plate 3, described
Fixing piece includes screw bolt and nut, the left plate 2, right side plate 3 open up respectively with the matched fixation hole 8 of fixing piece bolt,
Three groups of the fixing piece setting, i.e. first group of fixing piece, 5, second groups of fixing pieces 6, third group fixing piece 7, third group fixing piece
7 run through left plate, pulley and right side plate.
The left plate 2, right side plate 3 are cut by TC4 titanium alloy sheet.
The pulley material is high-strength aluminum alloy 7A19.
The aramid fiber density is 1.45g/cm3, tensile strength 2.9GPa, elongation at break 2.1%.
The diameter of the soft pull-rod inner core is 28mm.
The soft production method for mentioning line insulating tool of above-mentioned large-tonnage is same as Example 1, does not repeat.
Measuring mechanical property is carried out to the soft line insulating tool that mentions of the obtained large-tonnage of 1-6 of the embodiment of the present invention, it is right
Soft pull-rod carries out electric performance test, and test result is shown in Table 1.
The soft mechanical performance for mentioning line insulating tool of 1 1-6 of the embodiment of the present invention of table and electric property testing result
As shown in Table 1, the present invention it is obtained it is soft mention line insulating tool elongation≤2.5%, maximum may be up to using load
200kN, mechanical performance is excellent, switching impulse do withstanding voltage test and direct current do withstanding voltage test passes through, no flashover without
Fever, excellent electric properties are suitble to ± 1100kV direct-current ultra high voltage hot line maintenance.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (8)
1. a kind of the soft of large-tonnage mentions line insulating tool, which is characterized in that including soft pull-rod and connector, described is soft
Pull-rod both ends are annular in shape, and the sheath that the soft pull-rod includes inner core and is coated on outside inner core, the inner core is by 12 gangs of PBO
Fiber or aramid fiber are worked out, and the sheath material is moisture-proof silk line；The connector includes left plate, right side
Plate, pulley and the fixing piece for being connected and fixed left plate, right side plate, the pulley are arranged between left plate and right side plate, institute
The fixing piece stated includes screw bolt and nut, and the fixing piece is arranged three groups, wherein one group runs through left plate, pulley and right side
Plate.
2. the soft of large-tonnage according to claim 1 mentions line insulating tool, which is characterized in that the left plate, the right side
Side plate is cut by titanium alloy sheet.
3. the soft of large-tonnage according to claim 1 mentions line insulating tool, which is characterized in that the pulley material is
High-strength aluminum alloy.
4. the soft of large-tonnage according to claim 1 mentions line insulating tool, which is characterized in that the PBO fiber
Density is 1.54-1.56g/cm3, breaking strength 3.5-4N/tex, elongation at break 2.5-3.5%, regain 0.6-2%.
5. the soft of large-tonnage according to claim 1 mentions line insulating tool, which is characterized in that the aramid fiber is close
Degree is 1.44-1.46g/cm3, tensile strength 2.6-3.4GPa, elongation at break 1.8-3.2%.
6. the soft of large-tonnage according to claim 1 mentions line insulating tool, which is characterized in that in the soft pull-rod
The diameter of core is 25-35mm.
7. a kind of soft production method for mentioning line insulating tool of large-tonnage described in any one of claims 1-6, feature exist
In, comprising the following steps:
(1) inner core of soft pull-rod is made using 12 strands of braiders；
(2) damp-proof treatment is carried out to inner core；
(3) both ends of inner core are inserted circlewise by hand；
(4) moisture-proof silk line is worked out into outside inner core sheath by 32 ingot jacket machines, inserts moisture-proof silk line joint by hand；
(5) left plate and right side Board position are fixed using the fixing piece in middle position on connector, by soft pull-rod both ends
Ring-type is overlapped on pulley, then moves into pulley between left plate, right side plate, finally uses one group of fixing piece by pulley and a left side
Side plate, right side plate position fix.
8. the soft production method for mentioning line insulating tool of large-tonnage according to claim 7, which is characterized in that step
(2) damp-proof treatment described in is 30-60 DEG C of dry 0.5-1.5h.
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| CN201910789888.4A CN110391606A (en) | 2019-08-26 | 2019-08-26 | A kind of the soft of large-tonnage mentions line insulating tool and preparation method thereof |
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| CN203553745U (en) * | 2013-10-16 | 2014-04-16 | 国家电网公司 | A 800kV extra high voltage direct current line 150kN level soft insulation pull rod |
| CN105735018A (en) * | 2016-04-05 | 2016-07-06 | 如皋市顺源电力绳网带织造有限公司 | Method for manufacturing moisture-proof silk insulating rope |
| CN208461333U (en) * | 2018-06-27 | 2019-02-01 | 国网河南省电力公司检修公司 | 200kN grades of soft insulating pull-rods of ± 1100kV extra high voltage direct current transmission line |
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| US20140083262A1 (en) * | 2012-09-24 | 2014-03-27 | Wisman Enterprises, Llc | Multi-function high voltage wire service handtool |
| CN103078269A (en) * | 2013-01-16 | 2013-05-01 | 湖北省电力公司检修分公司 | Insulated soft pulling rod for extra-high voltage live working |
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