CN105977860A - Composite cross-arm insulator device and method for replacing overhead transmission line - Google Patents

Composite cross-arm insulator device and method for replacing overhead transmission line Download PDF

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Publication number
CN105977860A
CN105977860A CN201510823062.7A CN201510823062A CN105977860A CN 105977860 A CN105977860 A CN 105977860A CN 201510823062 A CN201510823062 A CN 201510823062A CN 105977860 A CN105977860 A CN 105977860A
Authority
CN
China
Prior art keywords
composite
arm insulator
arm
transmission line
support frame
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.)
Granted
Application number
CN201510823062.7A
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Chinese (zh)
Other versions
CN105977860B (en
Inventor
孙鑫
张凯
李文群
高水利
陈炳勤
王东育
孟令增
李艳军
杨超
向志昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongchuan Electric Co Of Guo Wang Shaanxi Prov Power Co
State Grid Corp of China SGCC
Original Assignee
Tongchuan Electric Co Of Guo Wang Shaanxi Prov Power Co
State Grid Corp of China SGCC
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Application filed by Tongchuan Electric Co Of Guo Wang Shaanxi Prov Power Co, State Grid Corp of China SGCC filed Critical Tongchuan Electric Co Of Guo Wang Shaanxi Prov Power Co
Priority to CN201510823062.7A priority Critical patent/CN105977860B/en
Publication of CN105977860A publication Critical patent/CN105977860A/en
Application granted granted Critical
Publication of CN105977860B publication Critical patent/CN105977860B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

Abstract

The present invention discloses a composite cross-arm insulator device and method for replacing an overhead transmission line. The device comprises a wire support frame which has one end provided with a pulley block lifting point for installing lifting wires and the other end provided with a U-shaped hoop configured to fix the support frame on the steel tube tower overhead grounding cross arm; and the wire support frame is provided with a reinforced tripod configured for improving the intensity of the wire support frame. The device structure is simple, the installation operation is convenient, the wires are effectively lifted and fixed, the wire shedding is avoided, and the efficiency is fully improved. The composite cross-arm insulator device and method for replacing an overhead transmission line may be used for replacing a composite cross-arm insulator for one time in the multi-loop overhead transmission line erected by the steel tube tower so as to effectively reduce the number of times of power failure, ensure the power supply reliability, realize the economic benefit and create more economic values for the society.

Description

A kind of replacing overhead transmission line composite cross-arm insulator device and method
[technical field]
The invention belongs to maintenance of overhead transmission line equipment technical field, relate to a kind of replacing overhead transmission line multiple Close cross arm insulator instrument.
[background technology]
For ensureing power circuit power supply reliability, need periodically transmission line of electricity to be safeguarded, the most topmost one Composite insulator is changed in item work exactly, and wherein composite cross-arm insulator is again the one in composite insulator.Multiple Conjunction cross arm insulator refers to be used in i.e. makees cross-arm on steel tube tower, set up again the insulator of wire.To this compound horizontal stroke During load replacing insulator, there is no special replacing instrument, there is no suitable method yet.To power circuit O&M work Make, power supply reliability has undesirable effect, to the resident in the range of line powering, municipal administration and industrial and mining establishment just Often life, production bring impact.
[summary of the invention]
It is an object of the invention to provide a kind of overhead transmission line composite cross-arm insulator device and method of changing, solution Having determined and changed the work of composite cross-arm insulator, technical ability is changed overhead transmission line in time and is combined cross-arm, again can be true Protect power circuit power supply reliability;Use this device and method to improve again work efficiency simultaneously, reduce operation Difficulty, can safely and conveniently complete task, it is ensured that power circuit power supply reliability.
For reaching above-mentioned purpose, the present invention is achieved by the following technical solutions:
A kind of replacing overhead transmission line composite cross-arm insulator device, including conductor support frame, conductor support frame One end is provided with the assembly pulley suspension centre for installing lifting lead wire, and the other end is provided with for bracing frame is fixed on steel U-shaped anchor ear on pipe tower aerial earth wire cross-arm;It is provided for improving the intensity of conductor support frame on conductor support frame Reinforcement tripod.
The present invention is further improved by:
Described conductor support frame includes cross bar and the connecting rod being vertically arranged on cross bar, and the two ends of connecting rod are provided with spiral shell Stricture of vagina, the lower end of connecting rod is installed on cross bar by nut, the sheathed connection in upper end sheet, and is fixed by nut.
Described cross bar is U-steel.
Described reinforcement spider is two round steel, and one end of two round steel all makes to be fixed by bolts to conductor support frame Two ends, the other end makes to be bolted to the upper end of connecting rod.
Described assembly pulley suspension centre includes that two pieces of yoke plates, two pieces of yoke plates are bolted to wire support by upper and lower two Frame both sides.
The middle part of described conductor support frame is also equipped with U-shaped anchor ear.
The invention also discloses a kind of method changing overhead transmission line composite cross-arm insulator, including following step Rapid:
1) first replacing composite cross-arm insulator device is risen to steel tube tower aerial earth wire hanging point position, use U-shaped anchor ear is installed on aerial earth wire cross-arm;
2) utilize transmission rope to be promoted by assembly pulley, and be suspended on the assembly pulley suspension centre of bracing frame one end;
3) other end of assembly pulley is arranged on the wire changing composite cross-arm insulator erection of needs;
4) lifting lead wire, makes between suspension clamp and composite cross-arm insulator no longer stress, open suspension clamp with Composite cross-arm insulator connects, and removes composite cross-arm insulator, and composite cross-arm insulator is dropped to ground;
5) promote new composite cross-arm insulator to answering installation site, and install firm;
6) recover the connection between suspension clamp and composite cross-arm insulator, and loosen assembly pulley rope, make to lead Line stress;
7) remove assembly pulley and drop to ground;
8) remove composite cross-arm insulator and drop to ground, changing composite cross-arm insulator and terminate.
Compared with prior art, the method have the advantages that
Apparatus of the present invention simple in construction, installs easy to operate, and can effectively promote and fix wire, prevents wire Come off, substantially increase efficiency.Can be used for the multiloop overhead transmission line that steel tube tower sets up is changed again for one time Close cross arm insulator, effectively reduce frequency of power cut, it is ensured that power supply reliability, it is achieved economic benefit, create for society Make more economic worth.
[accompanying drawing explanation]
Fig. 1 is the axonometric drawing of the present invention;
Fig. 2 is the front view of the present invention;
Fig. 3 is the left view of the present invention;
Fig. 4 is the top view of the present invention;
Fig. 5 is the structural representation of the U-shaped anchor ear of the present invention;
Wherein 1 is conductor support frame;2 is assembly pulley suspension centre;3 for strengthening tripod;4 is U-shaped anchor ear;5 For connecting rod.
[detailed description of the invention]
Below in conjunction with the accompanying drawings the present invention is described in further detail:
Seeing Fig. 1 to Fig. 5, apparatus of the present invention, including conductor support frame 1, conductor support frame 1 one end is provided with For installing the assembly pulley suspension centre 2 of lifting lead wire, the other end and middle part are provided with for bracing frame is fixed on steel U-shaped anchor ear 4 on pipe tower aerial earth wire cross-arm;It is provided on conductor support frame 1 improving conductor support frame 1 The reinforcement tripod 3 of intensity.Conductor support frame 1 includes cross bar and the connecting rod 5 being vertically arranged on cross bar, The two ends of connecting rod 5 are provided with screw thread, and the lower end of connecting rod 5 is installed on cross bar by nut, the sheathed connection in upper end Sheet, and fixed by nut.Cross bar is U-steel.Strengthening spider 3 is two round steel, the one of two round steel End is respectively welded at the two ends of conductor support frame 1,.The other end is all welded on the connection sheet of connecting rod 5 upper end. Assembly pulley suspension centre 2 includes that two pieces of yoke plates, two pieces of yoke plates are bolted to conductor support frame 1 liang by upper and lower two Side.
The present invention changes the method for overhead transmission line composite cross-arm insulator, comprises the following steps:
1) first replacing composite cross-arm insulator device is risen to steel tube tower aerial earth wire hanging point position, use U-shaped anchor ear is installed on aerial earth wire cross-arm;
2) utilize transmission rope to be promoted by assembly pulley, and be suspended on the assembly pulley suspension centre of bracing frame one end;
3) other end of assembly pulley is arranged on the wire changing composite cross-arm insulator erection of needs;
4) lifting lead wire, makes between suspension clamp and composite cross-arm insulator no longer stress, open suspension clamp with Composite cross-arm insulator connects, and removes composite cross-arm insulator, and composite cross-arm insulator is dropped to ground;
5) promote new composite cross-arm insulator to answering installation site, and install firm;
6) recover the connection between suspension clamp and composite cross-arm insulator, and loosen assembly pulley rope, make to lead Line stress;
7) remove assembly pulley and drop to ground;
8) remove composite cross-arm insulator and drop to ground, changing composite cross-arm insulator and terminate.
Run the time limits with 110 kilovolts of XX circuit #05 tower composite cross-arm insulators to expire to change and carry out sampling observation and be Example, also there is not operation exception, but does not inspects circuit composite cross-arm insulator by random samples in current circuit, may Cause that insulator dielectric level is aging, Insulator detection, thus cause power circuit ground connection, wire dropping accident, Impact power supply user about 200,000 family.The charged work team staff that transmits electricity determines to use after carrying out reconnaissance at criminal scene Change composite cross-arm insulator device and method and be replaced operation.
Above content is only the technological thought that the present invention is described, it is impossible to limit protection scope of the present invention with this, all It is the technological thought proposed according to the present invention, any change done on the basis of technical scheme, each fall within this Within the protection domain of bright claims.

Claims (7)

1. change overhead transmission line composite cross-arm insulator device for one kind, it is characterised in that include wire support Frame (1), conductor support frame (1) one end is provided with the assembly pulley suspension centre (2) for installing lifting lead wire, another End is provided with the U-shaped anchor ear (4) for being fixed on by bracing frame on steel tube tower aerial earth wire cross-arm;Wire support It is provided for improving the reinforcement tripod (3) of the intensity of conductor support frame (1) on frame (1).
Replacing overhead transmission line composite cross-arm insulator device the most according to claim 1, its feature exists In, described conductor support frame (1) includes cross bar and the connecting rod (5) being vertically arranged on cross bar, connecting rod (5) Two ends be provided with screw thread, the lower end of connecting rod (5) is installed on cross bar by nut, the sheathed connection in upper end sheet, And fixed by nut.
Replacing overhead transmission line composite cross-arm insulator device the most according to claim 2, its feature exists In, described cross bar is U-steel.
4., according to the replacing overhead transmission line composite cross-arm insulator device described in Claims 2 or 3, it is special Levying and be, described reinforcement spider (3) is two round steel, and one end of two round steel all makes to be fixed by bolts to The two ends of conductor support frame (1), the other end makes to be bolted to the upper end of connecting rod (5).
Replacing overhead transmission line composite cross-arm insulator device the most according to claim 1, its feature exists In, described assembly pulley suspension centre (2) includes that two pieces of yoke plates, two pieces of yoke plates are bolted to lead by upper and lower two Line bracing frame (1) both sides.
Replacing overhead transmission line composite cross-arm insulator device the most according to claim 1, its feature exists In, the middle part of described conductor support frame (1) is also equipped with U-shaped anchor ear (4).
7. use the method that device described in claim 1 changes overhead transmission line composite cross-arm insulator, It is characterized in that, comprise the following steps:
1) first replacing composite cross-arm insulator device is risen to steel tube tower aerial earth wire hanging point position, use U-shaped anchor ear is installed on aerial earth wire cross-arm;
2) utilize transmission rope to be promoted by assembly pulley, and be suspended on the assembly pulley suspension centre of bracing frame one end;
3) other end of assembly pulley is arranged on the wire changing composite cross-arm insulator erection of needs;
4) lifting lead wire, makes between suspension clamp and composite cross-arm insulator no longer stress, open suspension clamp with Composite cross-arm insulator connects, and removes composite cross-arm insulator, and composite cross-arm insulator is dropped to ground;
5) promote new composite cross-arm insulator to answering installation site, and install firm;
6) recover the connection between suspension clamp and composite cross-arm insulator, and loosen assembly pulley rope, make to lead Line stress;
7) remove assembly pulley and drop to ground;
8) remove composite cross-arm insulator and drop to ground, changing composite cross-arm insulator and terminate.
CN201510823062.7A 2015-11-23 2015-11-23 A kind of replacement overhead transmission line composite cross-arm insulator device and method Active CN105977860B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510823062.7A CN105977860B (en) 2015-11-23 2015-11-23 A kind of replacement overhead transmission line composite cross-arm insulator device and method

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Application Number Priority Date Filing Date Title
CN201510823062.7A CN105977860B (en) 2015-11-23 2015-11-23 A kind of replacement overhead transmission line composite cross-arm insulator device and method

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CN105977860A true CN105977860A (en) 2016-09-28
CN105977860B CN105977860B (en) 2018-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109904824A (en) * 2019-03-14 2019-06-18 国网黑龙江省电力有限公司齐齐哈尔供电公司 Small wire line promotes cross-arm

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101670988A (en) * 2009-08-25 2010-03-17 山东迅实电气有限公司 Hoisting tool for electric distribution network overhead wire
CN201490624U (en) * 2009-05-31 2010-05-26 华北电网有限公司廊坊供电公司 Fixture for replacing line linear insulator under electrification
CN202888721U (en) * 2012-11-15 2013-04-17 国家电网公司 Wire fixing device
CN202917892U (en) * 2012-08-31 2013-05-01 国家电网公司 Replacing tool for supporting insulator of tubular busbar
CN203932836U (en) * 2014-07-03 2014-11-05 国家电网公司 Angle pole china bottle replacement servicing unit
US8991790B2 (en) * 2012-02-02 2015-03-31 Andrew Herman Multiple action hoist

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201490624U (en) * 2009-05-31 2010-05-26 华北电网有限公司廊坊供电公司 Fixture for replacing line linear insulator under electrification
CN101670988A (en) * 2009-08-25 2010-03-17 山东迅实电气有限公司 Hoisting tool for electric distribution network overhead wire
US8991790B2 (en) * 2012-02-02 2015-03-31 Andrew Herman Multiple action hoist
CN202917892U (en) * 2012-08-31 2013-05-01 国家电网公司 Replacing tool for supporting insulator of tubular busbar
CN202888721U (en) * 2012-11-15 2013-04-17 国家电网公司 Wire fixing device
CN203932836U (en) * 2014-07-03 2014-11-05 国家电网公司 Angle pole china bottle replacement servicing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109904824A (en) * 2019-03-14 2019-06-18 国网黑龙江省电力有限公司齐齐哈尔供电公司 Small wire line promotes cross-arm
CN109904824B (en) * 2019-03-14 2021-01-01 国网黑龙江省电力有限公司齐齐哈尔供电公司 Small wire line lifting cross arm

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