CN103441445A - 760kN disc-shaped insulator clamp - Google Patents
760kN disc-shaped insulator clamp Download PDFInfo
- Publication number
- CN103441445A CN103441445A CN2013103281303A CN201310328130A CN103441445A CN 103441445 A CN103441445 A CN 103441445A CN 2013103281303 A CN2013103281303 A CN 2013103281303A CN 201310328130 A CN201310328130 A CN 201310328130A CN 103441445 A CN103441445 A CN 103441445A
- Authority
- CN
- China
- Prior art keywords
- card
- disc insulator
- bottle
- main body
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention discloses a 760kN disc-shaped insulator clamp which is characterized by comprising a front clamp body, a rear clamp body and two sets of power generation tension stringing devices. The two ends of each set of power generation tension stringing device are connected to the front clamp body and the rear clamp body respectively, and the front clamp body and the rear clamp body respectively comprise a clamp main body and a clamp upper cover hinged to the clamp main body. Each clamp main body and each clamp upper cover are clamped in a groove between a 760kN disc-shaped insulator steel cover and an insulating part. According to the 760kN disc-shaped insulator clamp, the difficult problem that a closed clamp for replacing a 760kN disc-shaped insulator at home and abroad does not exist at present is solved, and the capability of overhauling the large-tonnage disc-shaped insulator by electric transmission line operation and maintenance units, such as an extra-high voltage operation and maintenance unit, a multi-fission large-section conductor operation and maintenance unit and an extra-high voltage large-crossing operation and maintenance unit, is improved.
Description
Technical field
The present invention relates to a kind of service kit of overhead transmission line, be specifically related to a kind of 760kN disc insulator jig.
Background technology
Closed type fixture has been widely used in changing overhead transmission line dish type monolithic insulator, it with safe and reliable, control the favor that the advantage such as convenient has obtained the enterprises such as electrical production, construction, become and change the indispensable Work tool of monolithic disc insulator.
Fast development along with power grid construction, the extra-high voltage alternating current-direct current circuit, divide and large-section lead continues to bring out more, the current quantity of large-tonnage disc insulator of using on overhead transmission line is more and more, operating insulator is because the reasons such as aging, outside destroy can produce the insulator that norm standard requires that do not meet of some, form the safe operation that the transmission facility defect injures transmission line, for 760kN level large-tonnage disc insulator, it has, and running tension is large, the not easy-operating characteristics in the heavy high-altitude of monolithic insulator.There is no at present the closed fixture of changing 760kN dish type monolithic disc insulator both at home and abroad, if adopt traditional operation technique and replacing instrument, the problems such as to exist that power tool is many, the operating personnel is many, operation expends time in long, security risk is restive, do not meet electric power enterprise and promote fortune inspection operating efficiency, eliminate defect fast, guarantee the social responsibility requirement of power grid security, more do not meet the specialized feature of electric power enterprise.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of 760kN disc insulator jig, solve the transmission line run unit and there is no safe and reliable, as to control flexible upkeep operation instrument problem when changing the 760kN monolithic insulator.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
760kN disc insulator jig, it is characterized in that, comprise front card, rear card and the two covers wire tensioning device of having an effect, the have an effect two ends of wire tensioning device of every cover are connected on front card and rear card, described front card and rear card include: card main body and the card upper cover be hinged with the card main body, card main body and card upper cover holding card are on the groove between 760kN disc insulator steel cap and insulating part.
Aforesaid 760kN disc insulator jig is characterized in that the described wire tensioning device of having an effect comprises hydraulic screw rod, mechanical leading screw, and hydraulic screw rod and mechanical leading screw interconnect.
Aforesaid 760kN disc insulator jig, is characterized in that, described front card and rear card include: bolt, bearing pin, circlip, and card upper cover one end is connected with the card main body by bearing pin, and the card upper cover other end is connected with the card main body with circlip by bolt.
Aforesaid 760kN disc insulator jig, it is characterized in that, described hydraulic screw rod comprises hydraulic cylinder, piston rod, hydraulic operation handle and relief switch, described mechanical leading screw comprises the plush copper screw mandrel, recessed captacula bar, internal thread ring set and mechanically actuated operation handle, hydraulic operation handle and relief switch are arranged on hydraulic cylinder, one end of piston rod is connected with hydraulic cylinder, the other end of piston rod is connected with the plush copper screw mandrel, between plush copper screw mandrel and recessed captacula thick stick, by the internal thread ring set, be connected, described mechanically actuated operation handle is installed on the internal thread ring set, hydraulic cylinder one end and recessed captacula thick stick one end are connected on front card and rear card.
Aforesaid 760kN disc insulator jig, is characterized in that, also comprises bottle-holding rack, and described bottle-holding rack is connected with rear card with front card respectively.
Aforesaid 760kN disc insulator jig, it is characterized in that, described bottle-holding rack comprises bottle-holding rack main body, connecting plate assembly and bottle supporting ring, described bottle-holding rack main body comprises fixedly termination and movable end, described fixedly termination is connected with front card by the connecting plate assembly, and described movable end is connected with rear card by the bottle supporting ring.
Aforesaid 760kN disc insulator jig, is characterized in that, described card main body both sides are provided with otic placode, and described fixedly termination is connected with the otic placode of front card by the connecting plate assembly, and described movable end is connected with the otic placode of rear card by the bottle supporting ring.
Aforesaid 760kN disc insulator jig is characterized in that described front card and rear card are made by titanium alloy, and the nominal operation load is 190kN.
Aforesaid 760kN disc insulator jig, is characterized in that, the nominal operation load of described hydraulic screw rod is 120kN, and the nominal operation load of mechanical leading screw is 120 kN.
Aforesaid 760kN disc insulator jig is characterized in that described bottle-holding rack is made by aluminium alloy.
Usefulness of the present invention is: 760kN disc insulator jig of the present invention has solved and there is no a difficult problem of changing the special-purpose closed fixture of 760kN disc insulator at present both at home and abroad, has improved ultra high voltage, divides large-section lead more, the ability of the transmission line O&M unit maintenance large-tonnage disc insulator such as the large leap of superhigh pressure.
The accompanying drawing explanation
Fig. 1 is the preferred structure schematic diagram of 760kN disc insulator jig of the present invention;
Fig. 2 is front card or the rear structural representation blocked in 760kN disc insulator jig of the present invention;
Fig. 3 has an effect the structural representation of wire tensioning device in 760kN disc insulator jig of the present invention;
Fig. 4 is the front view of bottle-holding rack in 760kN disc insulator jig of the present invention;
Fig. 5 is the vertical view of bottle-holding rack in 760kN disc insulator jig of the present invention;
Fig. 6 is the right view of bottle-holding rack in 760kN disc insulator jig of the present invention.
The implication of Reference numeral in figure:
1, card upper cover, 2, bolt, 3, bearing pin, 4, circlip, 5, card main body, 6, hydraulic cylinder, 7, piston rod, 8, the hydraulic operation handle, 9, relief switch, 10, the plush copper screw mandrel, 11, recessed captacula bar, 12, the internal thread ring set, 13, mechanically actuated operation handle, 14, the bottle-holding rack main body, 15, the connecting plate assembly, 16, bottle supporting ring, 17, otic placode, 18, rear card, 19, front card, 20, the wire tensioning device of having an effect, 21, insulator.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is done to concrete introduction.
Shown in Fig. 1,760kN disc insulator 21 jigs of the present invention, comprise front card 19, rear card 18 and the two covers wire tensioning device 20 of having an effect, the have an effect two ends of wire tensioning device 20 of every cover are connected on front card 19 and rear card 18, front card 19 and rear card 18 include: card main body 5 and the card upper cover 1 be hinged with card main body 5, card main body 5 and card upper cover 1 holding card are on the groove between 760kN disc insulator 21 steel caps and insulating part.
Be as shown in Figure 2 in 760kN disc insulator 21 jigs of the present invention before card 19 or block afterwards 18 structural representation.Front card 19 and rear card 18 include: bolt 2, bearing pin 3, circlip 4, and card upper cover 1 one ends are connected with card main body 5 with circlip 4 by bearing pin 3, and card upper cover 1 other end is connected with card main body 5 by bolt 2, bearing pin 3 and circlip 4.Rotate by bolt 2 and bearing pin 3, open or closed card upper cover 1, front card 19, rear card 18 are arranged on and intend changing on the insulator 21 steel caps of monolithic insulator 21 front and back, form the fulcrum of the wire tensioning device 20 of having an effect.As improvement, bolt 2 is T-bolt 2.Further, front card 19 and rear card 18 are made by titanium alloy, and the nominal operation load is 190kN.The titanium alloy material that further preferably aviation is forged forms according to the 21 chapeau de fer overall dimension line cuttings of 760kN disc insulator.
As Fig. 3 has an effect the structural representation of wire tensioning device 20 in 760kN disc insulator 21 jigs of the present invention.The wire tensioning device 20 of having an effect comprises hydraulic screw rod, mechanical leading screw, and hydraulic screw rod and mechanical leading screw interconnect.So both guaranteed that installation or removal length was tediously long, shortened again the length of hydraulic screw rod, thereby reduced the weight of a whole set of jig.Further, hydraulic screw rod comprises hydraulic cylinder 6, piston rod 7, hydraulic operation handle 8 and relief switch 9, the machinery leading screw comprises plush copper screw mandrel 10, recessed captacula bar 11, internal thread ring set 12 and mechanically actuated operation handle 13, hydraulic operation handle 8 and relief switch 9 are arranged on hydraulic cylinder 6, one end of piston rod 7 is connected with hydraulic cylinder 6, the other end of piston rod 7 is connected with plush copper screw mandrel 10, between plush copper screw mandrel 10 and recessed captacula thick stick, by internal thread ring set 12, be connected, mechanical operating grip 13 is installed on internal thread ring set 12, hydraulic cylinder 6 one ends and recessed captacula thick stick one end are connected on front card 19 and rear card 18.As improvement, hydraulic machinery combination leading screw of the present invention comprises 120kN hydraulic screw rod and 120kN machinery leading screw, and the nominal operation of hydraulic screw rod load is 120kN, and the nominal operation load of mechanical leading screw is 120 kN.Now the stroke of hydraulic screw rod is 200mm, and the stroke of mechanical leading screw is 250 mm.Thereby it is feasible can guaranteeing to change 760kN monolithic disc insulator 21.The 120kN hydraulic screw rod comprises hydraulic cylinder 6, piston rod 7, operating grip, unloading throttle, and hydraulic cylinder 6 afterbodys are processed with the groove with the internal thread screw, and piston rod 7 exposes termination and is processed with the groove with the internal thread screw; 120kN machinery leading screw comprises leading screw and operating grip, and an end machining of 120kN machinery leading screw becomes the tongue with the internal thread screw, and another end machining becomes the groove with the internal thread screw; By special bolt 2, rear card 18, hydraulic cylinder 6, piston rod 7, mechanical leading screw and front card 19 are coupled together, form the 760kN disc insulator 21 jigs wire tensioning device 20 of having an effect.
Great innovative point as an original creation of the present invention.The present invention also comprises bottle-holding rack, and bottle-holding rack is connected with rear card 18 with front card 19 respectively.The present invention compared with prior art, has increased bottle-holding rack on front card 19 and rear card 18, and it is all at home and abroad pioneering.
As Fig. 4 is the front view of bottle-holding rack in 760kN disc insulator 21 jigs of the present invention; As Fig. 5 is the vertical view of bottle-holding rack in 760kN disc insulator 21 jigs of the present invention; As Fig. 6 is the right view of bottle-holding rack in 760kN disc insulator 21 jigs of the present invention.Bottle-holding rack of the present invention comprises bottle-holding rack main body 14, connecting plate assembly 15 and bottle supporting ring 16, and bottle-holding rack main body 14 comprises fixedly termination and movable end, and fixedly termination is connected with front card 19 by connecting plate assembly 15, and movable end is connected with rear card 18 by bottle supporting ring 16.Like this, as shown in Figure 5, bottle-holding rack main body 14 be suspended on 760kN disc insulator 21 jigs have an effect wire tensioning device 20 under, by operation wire tensioning device 20 handles of having an effect, complete insulator 21 string load transfers, make the monolithic insulator 21 of Awaiting Overhaul lax sagging and be suspended under bottle-holding rack main body 14 hold, then the work high above the ground personnel adopt the write off instrument to complete the replacing maintenance of monolithic insulator 21 on bottle-holding rack.Further, card main body 5 both sides are provided with otic placode 17, and fixedly termination is connected with the otic placode 17 of front card 19 by connecting plate assembly 15, and movable end is connected with the otic placode 17 of rear card 19 by bottle supporting ring 16.Be arranged with internal thread bolt 2 installing holes on front card 19 and rear card 18 main body 5 otic placodes 17, by special bolt 2, two groups of hydraulic machineries combination leading screws and front card 19 and rear card 18 are installed to the closed fixture that connects into " mouth " font wire tensioning device 20 of having an effect, again by 2 connecting plate assemblies 15 and 2 bottle-holding rack rings, the aluminium alloy bottle-holding rack is suspended on to " mouth " font closed fixture wire tensioning device 20 belows of having an effect, by the bottle-holding rack ring be enclosed within on the bottle-holding rack supervisor, slide, while accomplishing to tighten up or unfolding hydraulic machinery combination leading screw, bottle-holding rack length is synchronously adjusted.
The present invention improves material, and front card 19 and rear card 18 are made by titanium alloy, and the nominal operation load is 190kN.Bottle-holding rack is made by aluminium alloy.At the assurance instrument under safe and reliable prerequisite, use high strength, lightweight alloy material on the one hand decrease the weight of 760kN insulator 21 jig main elements, promoted the operating efficiency that install in the carrying of operation field instrument and high-altitude, in insulator 21 string finite structure spaces, used jig to be changed monolithic insulator 21 operations on the other hand and become a reality; For 760kN monolithic insulator 21 30 kilograms of these situations that weigh, operability and fail safe when adopting the closed fixture bottle-holding rack further to improve work high above the ground; Adopt the have an effect wire tensioning device 20 of two groups of hydraulic machinery combination leading screws as this closed fixture, the stroke demand while both having met the jig installation, the requirement that solves again insulator 21 string hightensions and Job Operations portability.
The replacing of take is example from the several N sheet of steel tower cross-arm guiding line side 760kN disc insulator 21, below introduces 760kN disc insulator 21 jig field conduct process steps of the present invention, as follows.
Step 3, the ground electrician wire tensioning device 20 of 120kN being had an effect on ground is good according to accompanying drawing 2 connections, by rope, the two covers wire tensioning device 20 of having an effect is passed to the work high above the ground personnel successively, the work high above the ground personnel are good by have an effect wire tensioning device 20 and front card 19,18 connections of rear card of two covers according to Fig. 1.
Step 4, ground electrician pass to work high above the ground personnel by rope by bottle-holding rack by bottle-holding rack, and the work high above the ground personnel are good by bottle-holding rack and front card 19,18 connections of rear card according to accompanying drawing 4.
The 120kN mechanically actuated operation handle 13 of the wire tensioning device 20 of having an effect is overlapped in step 5, work high above the ground personnel simultaneous operation two, tighten up two covers wire tensioning device 20 to two covers of having an effect and have an effect wire tensioning device 20 in tensioned state, then to confirm that each parts of 760kN disc insulator 21 jigs are installed connection intact for the work high above the ground personnel inspection.
The 120kN hydraulic operation handle 8 of the wire tensioning device 20 of having an effect is overlapped in step 7, work high above the ground personnel simultaneous operation two, continue to tighten up the two covers wire tensioning device 20 of having an effect and complete by the load transfers of maintenance insulator 21 string, held by bottle-holding rack until the N sheet 760kN disc insulator 21 be replaced is loosening, sagging.
After step 9, work high above the ground personnel are placed on bottle-holding rack by new insulator 21, untie the transmission rope, by new insulator 21 insulator 21 string of packing into, and install the locking pin in N sheet, (N+1) sheet 760kN disc insulator 21 chapeau de fers, check to rotate new insulator 21, make pin in chapeau de fer towards, install to connect etc. and meet the requirements.
The have an effect relief switch 9 of 120kN hydraulic screw rod of wire tensioning device 20 of step 10, work high above the ground personnel simultaneous operation two covers, by the piston rod 7 large-tonnage section tensile loads transfer of move; The work high above the ground personnel are the have an effect mechanically actuated operation handle 13 of 120kN machinery leading screw of wire tensioning device 20 of simultaneous operation two cover again, adjust the Song Liangtao wire tensioning device 20 of having an effect, complete the transfer of residue tensile loads, the mechanically actuated operation handle 13 by the leading screw of operating machine until two covers are had an effect wire tensioning device 20 in lax detachable state.
By technique scheme, 760kN disc insulator 21 jigs of the present invention at least have following advantages and benefit:
1, the successful development of 760kN disc insulator 21 jigs, solved and there is no a difficult problem of changing 760kN disc insulator 21 special-purpose closed fixtures at present both at home and abroad, improved ultra high voltage, divide large-section lead more, the ability of the transmission line O&M unit maintenance large-tonnage disc insulator 21 such as superhigh pressure large leap.
2, the front card 19 of 760kN disc insulator 21 jigs, rear card 18 adopt the titanium alloy material with characteristics such as intensity are high, lightweight to be made, when guaranteeing that the closed fixture work load meets the procedural security requirement on the one hand, make smaller front card 19 and the rear card 18 of volume, guaranteed on-the-spot installation smoothly in insulator 21 string confined space physical dimensions; On the other hand decrease the weight of front card 19, rear card 18 single-pieces, facilitated onsite moving, high-altitude installation and removal, guaranteed the practicality of closed fixture, improved the fail safe of on-the-spot work high above the ground.
3,120kN hydraulic machinery combination leading screw succeeds in developing, solved on the one hand the route problem of the wire tensioning device 20 of having an effect by introducing mechanical leading screw, also reduced the length of hydraulic screw rod simultaneously, thereby reduced the overall weight of the wire tensioning device 20 of having an effect, improved fail safe and the practicality that install in a whole set of jig high-altitude; The function of tightening up by mechanical leading screw pre-tightening and hydraulic screw rod large-tonnage tension force is on the other hand distributed, and has guaranteed to tighten up or has loosened safe and reliable, easy to operate while having an effect wire tensioning device 20.
4,760kN disc insulator 21 has the characteristics such as monolithic Heavy Weight, structure height is large, disk track is large, be difficult to dismounting or be in place while causing the high-altitude maintenance operation, the operating personnel more easily occurs takes incessantly high-altitude to drop, by hanging the aluminium alloy bottle-holding rack under the wire tensioning device 20 of having an effect at closed fixture, solve well the problems such as 760kN disc insulator 21 difficulties are dismantled, difficulty is installed, drop in easy high-altitude, thereby improved efficiency and the fail safe of service work.
5, a set of 760kN disc insulator 21 jigs consist of front card 19 and rear card 18, the wire tensioning device 20 of having an effect, three independent sectors of bottle-holding rack, between each part, by adopting bolt 2 to connect, so both have been convenient to onsite moving, lifting, are convenient to again warehouse and deposit keeping.
Above demonstration and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.
Claims (10)
1. 760kN disc insulator jig, it is characterized in that, comprise front card, rear card and the two covers wire tensioning device of having an effect, the have an effect two ends of wire tensioning device of every cover are connected on front card and rear card, described front card and rear card include: card main body and the card upper cover be hinged with the card main body, card main body and card upper cover holding card are on the groove between 760kN disc insulator steel cap and insulating part.
2. 760kN disc insulator jig according to claim 1, is characterized in that, the described wire tensioning device of having an effect comprises hydraulic screw rod, mechanical leading screw, and hydraulic screw rod and mechanical leading screw interconnect.
3. 760kN disc insulator jig according to claim 2, it is characterized in that, described front card and rear card include: bolt, bearing pin, circlip, and card upper cover one end is connected with the card main body by bearing pin, and the card upper cover other end is connected with the card main body with circlip by bolt.
4. 760kN disc insulator jig according to claim 3, it is characterized in that, described hydraulic screw rod comprises hydraulic cylinder, piston rod, hydraulic operation handle and relief switch, described mechanical leading screw comprises the plush copper screw mandrel, recessed captacula bar, internal thread ring set and mechanically actuated operation handle, hydraulic operation handle and relief switch are arranged on hydraulic cylinder, one end of piston rod is connected with hydraulic cylinder, the other end of piston rod is connected with the plush copper screw mandrel, between plush copper screw mandrel and recessed captacula thick stick, by the internal thread ring set, be connected, described mechanically actuated operation handle is installed on the internal thread ring set, hydraulic cylinder one end and recessed captacula thick stick one end are connected on front card and rear card.
5. according to the described 760kN disc insulator of claim 1 to 4 any one jig, it is characterized in that, also comprise bottle-holding rack, described bottle-holding rack is connected with rear card with front card respectively.
6. 760kN disc insulator jig according to claim 5, it is characterized in that, described bottle-holding rack comprises bottle-holding rack main body, connecting plate assembly and bottle supporting ring, described bottle-holding rack main body comprises fixedly termination and movable end, described fixedly termination is connected with front card by the connecting plate assembly, and described movable end is connected with rear card by the bottle supporting ring.
7. 760kN disc insulator jig according to claim 6, it is characterized in that, described card main body both sides are provided with otic placode, and described fixedly termination is connected with the otic placode of front card by the connecting plate assembly, and described movable end is connected with the otic placode of rear card by the bottle supporting ring.
8. 760kN disc insulator jig according to claim 5, is characterized in that, described front card and rear card are made by titanium alloy, and the nominal operation load is 190kN.
9. 760kN disc insulator jig according to claim 5, is characterized in that, the nominal operation load of described hydraulic screw rod is 120kN, and the nominal operation load of mechanical leading screw is 120 kN.
10. 760kN disc insulator jig according to claim 5, is characterized in that, described bottle-holding rack is made by aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103281303A CN103441445A (en) | 2013-07-31 | 2013-07-31 | 760kN disc-shaped insulator clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103281303A CN103441445A (en) | 2013-07-31 | 2013-07-31 | 760kN disc-shaped insulator clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103441445A true CN103441445A (en) | 2013-12-11 |
Family
ID=49695127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103281303A Pending CN103441445A (en) | 2013-07-31 | 2013-07-31 | 760kN disc-shaped insulator clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103441445A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375399A (en) * | 2015-11-05 | 2016-03-02 | 国网湖南省电力公司带电作业中心 | Wire tightening tool for power transmission line lead and wire tightening method |
| CN105703276A (en) * | 2016-04-18 | 2016-06-22 | 国网辽宁省电力有限公司本溪供电公司 | Multiuse clamp for replacement of insulator of power transmission line |
| CN109473901A (en) * | 2018-05-09 | 2019-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of fixture for replacing power transmission tower side of wire end insulation |
| CN109787146A (en) * | 2019-01-30 | 2019-05-21 | 云南电网有限责任公司昆明供电局 | Fixture is replaced for ± 500kV power line tension insulator string monolithic |
| CN110336217A (en) * | 2019-07-09 | 2019-10-15 | 云南电网有限责任公司带电作业分公司 | A kind of operational method for monolithic insulator any among charged for replacement 550kN large-tonnage strain insulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0541124A (en) * | 1991-08-02 | 1993-02-19 | Ngk Insulators Ltd | Suspension type lightning arrester insulator and holding tool for insulator exchange |
| CN201504052U (en) * | 2009-07-26 | 2010-06-09 | 江西赣州供电公司 | Adjustable tension-resistant insulator cradle |
| CN103066528A (en) * | 2012-12-13 | 2013-04-24 | 云南电网公司带电作业分公司 | Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain |
| CN203039292U (en) * | 2012-12-11 | 2013-07-03 | 宁夏电力公司检修公司 | Clamping device for replacing linear double-string synthetic insulators of 750-kilovolt power transmission line |
| CN203367880U (en) * | 2013-07-31 | 2013-12-25 | 国家电网公司 | 760kN disk-shaped insulator holder |
-
2013
- 2013-07-31 CN CN2013103281303A patent/CN103441445A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0541124A (en) * | 1991-08-02 | 1993-02-19 | Ngk Insulators Ltd | Suspension type lightning arrester insulator and holding tool for insulator exchange |
| CN201504052U (en) * | 2009-07-26 | 2010-06-09 | 江西赣州供电公司 | Adjustable tension-resistant insulator cradle |
| CN203039292U (en) * | 2012-12-11 | 2013-07-03 | 宁夏电力公司检修公司 | Clamping device for replacing linear double-string synthetic insulators of 750-kilovolt power transmission line |
| CN103066528A (en) * | 2012-12-13 | 2013-04-24 | 云南电网公司带电作业分公司 | Replacing device and replacing method of high altitude 500-kilovolt strain fourfold insulator chain |
| CN203367880U (en) * | 2013-07-31 | 2013-12-25 | 国家电网公司 | 760kN disk-shaped insulator holder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375399A (en) * | 2015-11-05 | 2016-03-02 | 国网湖南省电力公司带电作业中心 | Wire tightening tool for power transmission line lead and wire tightening method |
| CN105703276A (en) * | 2016-04-18 | 2016-06-22 | 国网辽宁省电力有限公司本溪供电公司 | Multiuse clamp for replacement of insulator of power transmission line |
| CN109473901A (en) * | 2018-05-09 | 2019-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of fixture for replacing power transmission tower side of wire end insulation |
| CN109787146A (en) * | 2019-01-30 | 2019-05-21 | 云南电网有限责任公司昆明供电局 | Fixture is replaced for ± 500kV power line tension insulator string monolithic |
| CN109787146B (en) * | 2019-01-30 | 2023-11-24 | 云南电网有限责任公司昆明供电局 | Single-piece replacement fixture for strain insulator string of +/-500 kV power transmission line |
| CN110336217A (en) * | 2019-07-09 | 2019-10-15 | 云南电网有限责任公司带电作业分公司 | A kind of operational method for monolithic insulator any among charged for replacement 550kN large-tonnage strain insulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202014054U (en) | Overhaul tool for dead end insulator on +/- 660kV DC power transmission line | |
| CN103441445A (en) | 760kN disc-shaped insulator clamp | |
| CN102136695B (en) | Overhauling tool used for +/-660kV direct-current transmission line | |
| CN203367880U (en) | 760kN disk-shaped insulator holder | |
| CN103618249A (en) | technology for electrified overhaul of +-500kV double-circuit direct-current power transmission lines on same tower | |
| CN208461336U (en) | A kind of hammer of overhead power transmission line apparatus for examination and repair | |
| CN206506228U (en) | Extra-high voltage levels tetrad strain insulator side of wire isolator hot-line replacing instrument | |
| CN102820629B (en) | The method of charged for replacement drainage thread parallel groove clamp | |
| CN101814707A (en) | Tool for live replacement of 220kV line 'V' string insulator and method | |
| CN106033872B (en) | Equipotential changes the instrument of the double soft bus strain insulators of simply connected | |
| CN202014055U (en) | Overhauling device of V-shaped double-string insulator for +-660KV direct current transmission line | |
| CN104852324A (en) | Lead support device assisting in replacing porcelain cross arm | |
| CN204793844U (en) | Change promotion instrument of single wire insulator of 110kV with electricity | |
| CN102255260B (en) | Integrated type live-line working ten-splitting line lifter | |
| CN204241323U (en) | Insulation ropes test unit | |
| CN103825222B (en) | A kind of charged for replacement 220kV narrow base tower strain insulator string instrument | |
| CN102390288A (en) | Clamp-type rigid suspension contact net | |
| CN203813334U (en) | Right-angle yoke plate clamp for live exchange of 220 kV strain insulator string | |
| CN202930836U (en) | Tension insulator replacement tool | |
| CN203813320U (en) | Tool for live exchange of 220 kV narrow base tower strain insulator string | |
| CN109038365B (en) | Load hoisting system for live replacement of 500kV linear insulator string | |
| CN202159929U (en) | Integrated ten-division wire lifting device for live-wire work | |
| CN103825223B (en) | Charged for replacement 220KV narrow base tower strain insulator string tool and operational method | |
| CN201956623U (en) | Overhauling tool for V-type single-string insulators of +/-660kV DC transmission line | |
| CN104617518A (en) | Special clamp for linear angle tower and application method of special clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131211 |