CN105226568A - Power transmission line composite insulator overhauling support and operating method thereof - Google Patents

Power transmission line composite insulator overhauling support and operating method thereof Download PDF

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Publication number
CN105226568A
CN105226568A CN201510768028.4A CN201510768028A CN105226568A CN 105226568 A CN105226568 A CN 105226568A CN 201510768028 A CN201510768028 A CN 201510768028A CN 105226568 A CN105226568 A CN 105226568A
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China
Prior art keywords
composite insulator
hitch
main body
support
maintenance support
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CN201510768028.4A
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Chinese (zh)
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CN105226568B (en
Inventor
夏云峰
钟燕彪
陈志刚
陈华干
何浩辉
吴非凡
翟柯明
黎成泰
杨光
叶钜芬
陈湘莲
莫少媚
杨武
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN201510768028.4A priority Critical patent/CN105226568B/en
Publication of CN105226568A publication Critical patent/CN105226568A/en
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Publication of CN105226568B publication Critical patent/CN105226568B/en
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Abstract

The invention discloses a composite insulator overhauling support for a power transmission line, which comprises a supporting main body for supporting an overhauling worker, wherein the supporting main body is plate-shaped, two ends of the supporting main body are respectively provided with a hanging mechanism, and the hanging mechanisms are hinged with the end part of the supporting main body. The invention also discloses an action method of the maintenance bracket. This overhaul support simple structure, the equipment of being convenient for, easy operation is applicable to strain insulator composite insulator or sharp composite insulator, and can adapt to the composite insulator of different models, and the structure accords with ergonomic, provides passageway and operation space through composite insulator for the maintainer, has optimized the maintenance operation mode, is favorable to improving the efficiency of overhauing the operation.

Description

A kind of transmission line composite insulator maintenance support and operational method thereof
Technical field
The present invention relates to the service kit of power industry, particularly relate to a kind of transmission line composite insulator maintenance support.Meanwhile, the invention still further relates to the operational method applying above-mentioned maintenance support.
Background technology
Power transmission lines overhauling homework type is various, wherein, change stockbridge damper, fastening drainage thread bolt, changing the homework types such as linear insulator needs insulator to launch, but a large amount of silicon rubber compound insulator adopted on circuit in recent years, silicon rubber compound insulator because of its hydrophobicity good, antifouling work ability is strong, used for polluting comparatively serious area in a large number, but its full skirt is comparatively fragile, in the process of upkeep operation, usually directly climbing is directly adopted to trample, composite insulator easily damages, once cause composite insulator to damage, composite insulator must be changed, not only cause the increase of the cost of overhaul, and affect the carrying out of upkeep operation, secondary injury is caused to repair apparatus.Operation now also has employing rope ladder, bamboo ladder or aluminum alloy ladder outlet, but this type of Work tool manipulating object is single, composite insulator that is dissimilar, different model cannot be tackled, be equipped with dissimilar Work tool, single Work tool utilance is not high, seems that resource distribution is wasted, do not meet enterprise operation economy, in addition, carry multiple Work tool to on-the-spot, be also unfavorable for that maintenance high efficiency is carried out.Therefore, need development and Application in the maintenance support of composite insulator upkeep operation, facilitate maintainer by insulator, and avoid destroying composite insulator.
Summary of the invention
An object of the present invention is to provide a kind of transmission line composite insulator to overhaul support, this maintenance support is when power transmission lines overhauling operation, for maintainer provides the passage by composite insulator, it is rational in infrastructure, maintainer, without the need to directly trampling insulator, is applicable to strain insulator or the straight line composite insulator of any model, can adapts to the Overhaul site of different conductor radian, reduce the risk of maintenance, improve the efficiency of maintenance.
The present invention's first object is achieved through the following technical solutions: a kind of transmission line composite insulator maintenance support, comprise the support main body for support maintainer, this support main body is tabular, and its two ends arrange hitch respectively, and the end of described hitch and support main body is hinged.
The two side of support main body of the present invention arranges several groove respectively, embedded pin nail is provided with in described groove, the root of described pin nail is hinged with support main body in groove, usual pin nail is accommodated in groove, can open during operation fluted in pin nail, thus the ladder passed through for maintainer is formed in the both sides of support main body, this function to be mainly used in upkeep operation operating personnel by straight line composite insulator.
Further, described hitch is adjustable hook, comprise the shaped as frame connector for being connected with support main body and hook, described shaped as frame connector is in " Π " shape, its horizontal edge is provided with screw, described hook by being connected with the horizontal edge of described shaped as frame connector with the screw rod of described screw adaptation, the end of two vertical edges of described shaped as frame connector and the two ends of support main body hinged, in use described, the length of hitch is regulated by screw rod.
Further, in described two hitches, at least one of them has fine tuning structure, so that the length of micro-adjusting mechanism.Particularly, described hitch comprises shaped as frame connector, hook and fine tuning structure, described fine tuning structure comprises rotating parts and screw rod, described rotating parts is shaped as frame connector, its top has through hole and bottom has screw, described hook afterbody is provided with the connecting rod that diameter is less than through-hole aperture, this connecting rod is set in described through hole, its that one end being positioned at rotating parts has the drop-proof structure that flange is formed, prevent connecting rod and rotating parts from departing from, one end of described screw rod is connected with screw adaptation, when operation, rotate rotating parts to finely tune the length of hitch.
Further, described support main body two ends arrange the connector extended along support principal length direction respectively, wherein have at least a connector to be adjusting connector, the shaped as frame connector of described two hitches is with hinged with the adjusting connector at support main body two ends respectively.
Described adjusting connector offers several through hole, the axis of each through hole and the axis being parallel of adjusting connector Width, the shaped as frame connector of described hitch is bolted on adjusting connector, such hitch can be connected from the different through holes on adjustable connecting piece by bolt as required, thus regulate the tie point of hitch and support main body, and then the length of adjustment support main body.
Described hook is flat, in order to increase the contact area of hook, makes whole maintenance cradle hangs more firm, improves job safety.
Two of the object of the invention provides the operational method applying above-mentioned maintenance support.
Composite insulator has two kinds, is Anti-tension composite insulator and straight line composite insulator respectively.When carrying out different described composite insulator maintenance, the operational method of maintenance support is different, and therefore realizing the present invention's second object has two kinds of different technologies measures, specific as follows:
A kind of transmission line composite insulator maintenance support operational method, described composite insulator is Anti-tension composite insulator, and described operational method comprises the following steps:
(1) observe the sag of wire and the length of composite insulator, select the hitch with fine tuning structure and the connector link position of maintenance support, the suspension distance of adjustment maintenance support;
(2) another hitch of described maintenance support is suspended on the nearly conducting line segment of composite insulator, described in there is fine tuning structure hitch be suspended on the nearly tower material end of composite insulator;
(3) turn rotating parts regulates the length with the hitch of fine tuning structure, makes described support main body be horizontal positioned, namely completes the operation of maintenance support.
A kind of transmission line composite insulator maintenance support operational method, described composite insulator is straight line composite insulator, and described operational method comprises the following steps:
(1) sag of wire and the length of composite insulator is observed, select hitch and the connector link position with fine tuning structure, the suspension distance of adjustment maintenance support, and by two hitch horizontal positioned, then open the pin nail of support main body both sides, thus make maintenance support form ladder, pass through for maintainer;
(2) another hitch of described maintenance support is suspended on the nearly conducting line segment of composite insulator, described in there is fine tuning structure hitch be suspended on the nearly tower material end of composite insulator;
(3) turn rotating parts regulates the length with the hitch of fine tuning structure, makes maintenance support be fixed between wire and tower material, namely completes the operation of maintenance support.
the present invention has following technique effect:
(1) the invention provides maintenance supporting structure simple, be convenient to assembling, simple to operate, be applicable to Anti-tension composite insulator or straight line composite insulator, and the composite insulator of different model can be adapted to, structure meets ergonomics, for maintainer provides passage by composite insulator and working space, climbing is avoided to trample composite insulator, eliminate the damage risk of artificially climbing composite insulator, Optimal Maintenance operating type, be conducive to the efficiency improving upkeep operation, reduce the interruption duration of transmission line, ensure the cost of transmission line safe operation and upkeep operation.
(2) the support main body that the present invention is arranged is maintainer's passage by insulator when being provided in operation, and the weight of support maintainer, for upkeep operation provides a suitable space.
(3) the multiple embedded pin that the both sides of support main body are arranged is followed closely, and when by the straight line compound inslation period of the day from 11 p.m. to 1 a.m, can open the pin nail of both sides, form ladder, for maintainer provides passage.
(4) two hitches mainly play support bracket fastened effect, for cradle hangs will be overhauled at composite insulator two ends, and fixing whole support.Two suspended structures are adjustable hook, be bolted by shaped as frame connector and hook and form, the its length of hitch is regulated by screw rod, by choosing the different length of two hooks during operation, adapt to the wire radian in upkeep operation, the passage manufacturing a level passes through for maintainer.
(5) hook is in flat, increases the contact area of hook, support is fixed more firm, improve working security.
(6) one of them adjustable hook is provided with fine tuning structure, and when radial alignment composite insulator upkeep operation, the length of fine-tuning adjustable hook, the maintenance support between stringing lead and tower material, is conducive to maintainer's climbing.
(7) at least one end of support main body arranges adjustable connecting piece, for adjusting the tie point of hitch, to adjust the length of support main body, and the situation of the different creepage distances of the composite insulator appearance of reply different model.Before hanging maintenance support, should check the creepage distance of the insulator of operation, the length needed for selection, the scope of application is different because needing.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is structural representation of the present invention (being placed on Anti-tension composite insulator);
Fig. 2 is structural representation of the present invention (being placed on straight line composite insulator);
Fig. 3 is the structural representation of the present invention first hitch.
Embodiment
Below in conjunction with accompanying drawing and embodiment one, the present invention is further illustrated.
Transmission line composite insulator maintenance support shown in Fig. 1-3, comprise the support main body 6 for support maintainer, this support main body 6 is tabular, and its two ends arrange hitch respectively, and the end of hitch and support main body 6 is articulated and connected.Support main body 6 wherein one end arranges the adjusting connector 4 extended along support principal length direction, and one of them hitch is connected with this adjusting connector 4, as the first hitch.Support main body 6 other end arranges the connector 9 extended along support principal length direction, and another hitch is connected with this connector 9, as the second hitch.
The two side of support main body 6 arranges several groove 14 respectively, and groove is provided with embedded pin nail 5.Each embedded pin nail 5 is hook-shaped, and its root is installed in rotation in groove 14 by screw.Usual pin nail 5 is accommodated in groove 14, can open the pin nail 5 in institute fluted 14 during operation, thus forms the ladder that confession maintainer passes through in the both sides of support main body 6, and this function to be mainly used in upkeep operation operating personnel by straight line composite insulator.
Adjusting connector 4 offers 3 through holes 13, the axis of each through hole 13 and the axis being parallel of adjusting connector 4 Width.First hitch is made up of flat hook 1, connecting rod 12, micro-adjusting mechanism and " Π " shape shaped as frame connector 3.Wherein, micro-adjusting mechanism is made up of rotating parts 2 and screw rod 11.Rotating parts 2 is hollow shaped as frame connector, and its top has through hole, and bottom has screw.Connecting rod 12 is set in the through hole of rotating parts 2, and its diameter is less than the aperture of through hole.Connecting rod 12 one end is connected with hook 1, and the other end is positioned at rotating parts 2 and this end has flange, and this flange forms drop-proof structure, prevents connecting rod 12 and rotating parts 2 from departing from.One end of screw rod 11 is connected with rotating parts 2 screw adaptation, and when operation, rotating rotating parts 2 can finely tune the length of hitch.The horizontal edge of " Π " shape shaped as frame connector 3 is provided with screw, and the other end of screw rod 11 is connected with this screw adaptation.The end of two vertical edges of " Π " shape shaped as frame connector 3 is connected with the through hole 13 of adjusting connector 4 by bolt, because adjusting connector 4 offers 3 through holes 13, shaped as frame connector 3 can be connected from the different through holes on adjusting connector 4 by bolt as required, the tie point of the first hitch and support main body 6 can be regulated like this, thus the length of adjustment support main body 6.Second hitch is made up of flat hook 8, " Π " shape shaped as frame connector 7 and screw rod 10, two vertical edges of " Π " shape shaped as frame connector 7 are connected by the through hole of bolt with connector 9 end, in use, the length of the second hitch is regulated by screw rod.
Shown in Fig. 1 is the schematic diagram that the present embodiment is placed in Anti-tension composite insulator.First observe the sag of wire and the length of composite insulator, select the first hitch and adjusting connector 4 link position, to adjust the suspension distance of maintenance support, be suitable for the composite insulator from different creepage distance.The length of suitable adjustment second hitch, then the hook 8 of the second hitch is suspended on the nearly conducting line segment of composite insulator, the hook 1 of the first hitch is suspended on the nearly tower material end of composite insulator, turn rotating parts 2 finely tunes the radian of the length adaptation wire of the first hitch, and maintenance support level is placed.
Shown in Fig. 2 is the schematic diagram that the present embodiment is placed on straight line composite insulator.Be used in the straight line compound inslation period of the day from 11 p.m. to 1 a.m, first the sag of wire and the length of composite insulator is observed, select the first hitch and adjusting connector 4 link position, and suitably regulate the length of the second hitch, be that horizontal positioned and support main body 6 are on same straight line by the first hitch and the second hitch, open the pin nail 5 of support main body 6 both sides, form ladder, then the hook 8 of the second hitch is suspended on the nearly conducting line segment of composite insulator, the hook 1 of the first hitch is suspended on the nearly tower material end of composite insulator, turn rotating parts 2 finely tunes the length of the first hitch, tightly be fixed between wire and tower material to maintenance support, complete the operation of maintenance support, for maintainer provides by passage and working space.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a transmission line composite insulator maintenance support, it is characterized in that, comprise the support main body for support maintainer, this support main body is tabular, and its two ends arrange hitch respectively, and the end of described hitch and support main body is hinged.
2. the maintenance support for composite insulator according to claim 1, is characterized in that, the two side of described support main body arranges several groove respectively, is provided with embedded pin nail in described groove, and the root of described pin nail is hinged with support main body in groove.
3. transmission line composite insulator maintenance support according to claim 1 and 2, it is characterized in that, described hitch comprises shaped as frame connector for being connected with support main body and hook, described shaped as frame connector is in " Π " shape, its horizontal edge is provided with screw, described hook by being connected with the horizontal edge of described shaped as frame connector with the screw rod of described screw adaptation, the end of two vertical edges of described shaped as frame connector and the end of support main body hinged.
4. transmission line composite insulator maintenance support according to claim 3, it is characterized in that, in described two hitches, at least one of them has fine tuning structure, to finely tune the length of hitch.
5. transmission line composite insulator maintenance support according to claim 4, it is characterized in that, described hitch comprises shaped as frame connector, hook and fine tuning structure, described fine tuning structure comprises rotating parts and screw rod, described rotating parts is shaped as frame connector, its top has through hole and bottom has screw, described hook afterbody is provided with the connecting rod that diameter is less than through-hole aperture, this connecting rod is set in described through hole, its that one end being positioned at rotating parts has flange, this flange forms drop-proof structure, prevent connecting rod and rotating parts from departing from, one end of described screw rod is connected with screw adaptation, when operation, rotate rotating parts to finely tune the length of hitch.
6. transmission line composite insulator maintenance support according to claim 5, it is characterized in that, described support main body two ends arrange the connector extended along support principal length direction respectively.
7. transmission line composite insulator maintenance support according to claim 6, it is characterized in that, have at least a connector to be adjusting connector in described two connectors, the shaped as frame connector of described two hitches is hinged with the adjusting connector at support main body two ends respectively.
8. transmission line composite insulator maintenance support according to claim 7, it is characterized in that, described adjusting connector offers several through hole, the axis of each through hole and the axis being parallel of adjusting connector Width, the shaped as frame connector of described hitch is bolted on adjusting connector.
9. transmission line composite insulator maintenance support according to claim 8, it is characterized in that, described hook is flat, in order to increase the contact area of hook.
10. the transmission line composite insulator maintenance support operational method described in any one of claim 4-9, it is characterized in that, described composite insulator is Anti-tension composite insulator, and described operational method comprises the following steps:
(1) observe the sag of wire and the length of composite insulator, select the hitch with fine tuning structure and the connector link position of maintenance support, the suspension distance of adjustment maintenance support;
(2) another hitch of described maintenance support is suspended on the nearly conducting line segment of composite insulator, described in there is fine tuning structure hitch be suspended on the nearly tower material end of composite insulator;
(3) turn rotating parts regulates the length with the hitch of fine tuning structure, makes described support main body be horizontal positioned, namely completes the operation of maintenance support.
Transmission line composite insulator maintenance support operational method described in 11. 1 kinds of any one of claim 4-9, it is characterized in that, described composite insulator is straight line composite insulator, and described operational method comprises the following steps:
(1) sag of wire and the length of composite insulator is observed, select hitch and the connector link position with fine tuning structure, the suspension distance of adjustment maintenance support, and by described hitch and another hitch horizontal positioned with fine tuning structure, then open the pin nail of support main body both sides, thus make maintenance support form ladder, pass through for maintainer;
(2) another hitch of described maintenance support is suspended on the nearly conducting line segment of composite insulator, described in there is fine tuning structure hitch be suspended on the nearly tower material end of composite insulator;
(3) turn rotating parts regulates the length with the hitch of fine tuning structure, makes maintenance support be fixed between wire and tower material, namely completes the operation of maintenance support.
CN201510768028.4A 2015-11-12 2015-11-12 Power transmission line composite insulator overhauling support and operating method thereof Active CN105226568B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895813A (en) * 2017-03-28 2017-06-27 珠海鼎日电子科技有限公司 A kind of transmission line of electricity aerial condutor sag measuring device and its measuring method
CN106992464A (en) * 2017-04-21 2017-07-28 国网青海省电力公司西宁供电公司 A kind of strain insulator drainage overlap joint ladder
CN107546645A (en) * 2017-09-28 2018-01-05 国网山东省电力公司烟台供电公司 Transmission line high-altitude job platform
CN111244816A (en) * 2020-03-04 2020-06-05 广东电网有限责任公司 A 10kV operation auxiliary device
CN112202102A (en) * 2020-10-20 2021-01-08 国网山东省电力公司潍坊供电公司 A tension-resistant porcelain insulator spraying operation platform
CN112255514A (en) * 2020-10-12 2021-01-22 国网甘肃省电力公司电力科学研究院 A kind of manufacturing method of composite insulator steep wave test bracket
CN114966335A (en) * 2022-05-11 2022-08-30 固力发电气有限公司 Testing arrangement of compound insulation cross arm insulator
CN115548975A (en) * 2022-11-25 2022-12-30 天津市新玻电力复合绝缘子制造股份有限公司 Repair tool and repair method for composite insulator inspection field

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2376041A (en) * 2001-05-30 2002-12-04 Balfour Beatty Plc Mounting ladder on overhead cables
CN101026291A (en) * 2007-03-16 2007-08-29 辽宁省电力有限公司鞍山供电公司 Foldable synthetic insulator special ladder
KR20090006200U (en) * 2007-12-18 2009-06-23 한전케이피에스 주식회사 Ladder for Polymer Insulation Maintenance
CN103132900A (en) * 2011-12-02 2013-06-05 河南省电力公司新乡供电公司 Multifunctional hanging ladder
CN203301060U (en) * 2013-06-06 2013-11-20 中国南方电网有限责任公司超高压输电公司安宁局 Adjustable lift platform on strain insulator string of UHV power transmission line

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2376041A (en) * 2001-05-30 2002-12-04 Balfour Beatty Plc Mounting ladder on overhead cables
CN101026291A (en) * 2007-03-16 2007-08-29 辽宁省电力有限公司鞍山供电公司 Foldable synthetic insulator special ladder
KR20090006200U (en) * 2007-12-18 2009-06-23 한전케이피에스 주식회사 Ladder for Polymer Insulation Maintenance
CN103132900A (en) * 2011-12-02 2013-06-05 河南省电力公司新乡供电公司 Multifunctional hanging ladder
CN203301060U (en) * 2013-06-06 2013-11-20 中国南方电网有限责任公司超高压输电公司安宁局 Adjustable lift platform on strain insulator string of UHV power transmission line

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106895813A (en) * 2017-03-28 2017-06-27 珠海鼎日电子科技有限公司 A kind of transmission line of electricity aerial condutor sag measuring device and its measuring method
CN106895813B (en) * 2017-03-28 2023-05-02 珠海鼎日电子科技有限公司 Device and method for measuring sag of overhead conductor of power transmission line
CN106992464A (en) * 2017-04-21 2017-07-28 国网青海省电力公司西宁供电公司 A kind of strain insulator drainage overlap joint ladder
CN106992464B (en) * 2017-04-21 2019-01-25 国网青海省电力公司西宁供电公司 A tension-resistant drainage lap ladder
CN107546645A (en) * 2017-09-28 2018-01-05 国网山东省电力公司烟台供电公司 Transmission line high-altitude job platform
CN111244816A (en) * 2020-03-04 2020-06-05 广东电网有限责任公司 A 10kV operation auxiliary device
CN112255514A (en) * 2020-10-12 2021-01-22 国网甘肃省电力公司电力科学研究院 A kind of manufacturing method of composite insulator steep wave test bracket
CN112202102A (en) * 2020-10-20 2021-01-08 国网山东省电力公司潍坊供电公司 A tension-resistant porcelain insulator spraying operation platform
CN114966335A (en) * 2022-05-11 2022-08-30 固力发电气有限公司 Testing arrangement of compound insulation cross arm insulator
CN114966335B (en) * 2022-05-11 2025-01-07 固力发电气有限公司 A testing device for composite insulation cross-arm insulator
CN115548975A (en) * 2022-11-25 2022-12-30 天津市新玻电力复合绝缘子制造股份有限公司 Repair tool and repair method for composite insulator inspection field

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