CN102403671A - Tool for replacing rod type porcelain insulator through live-wire work - Google Patents
Tool for replacing rod type porcelain insulator through live-wire work Download PDFInfo
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- CN102403671A CN102403671A CN2011102113867A CN201110211386A CN102403671A CN 102403671 A CN102403671 A CN 102403671A CN 2011102113867 A CN2011102113867 A CN 2011102113867A CN 201110211386 A CN201110211386 A CN 201110211386A CN 102403671 A CN102403671 A CN 102403671A
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Abstract
The invention discloses a tool for replacing a rod type porcelain insulator through live-wire work, comprising an upper locking groove for fixing a lead, a main material for insulation and a lower locking groove connected to a cross arm in this order from top downwards, wherein the bottom surface of the upper locking groove is fixedly connected to the top surface of the main material; and the bottom surface of the main material is fixedly connected to the top surface of the lower locking groove. The tool has the following advantages that: the tool is separately fabricated, which is simple; the tool is flexible to operate; and the mechanical strength of the tool is capable of meeting the requirements through rational design; the insulation property of a composite pillar insulator is good and the mechanical strength thereof is high; after the lead is placed in the upper locking groove, a locking ring is automatically closed, which is simple to operate; no spring is needed to bear pressure and the locking ring is capable of firmly retaining the lead; and the locking ring is reliable in operation and not easy to damage; a bolt is used for fixed connection, and is convenient to operate, and the mechanical strength and insulation property of the bolt both can meet the requirements; and the tool is simple to operate and convenient to mount and demount; therefore, the operation time of replacing the rod type porcelain insulator through live-wire work is shortened and the working efficiency is improved.
Description
Technical field
The present invention relates to a kind of replacing bar type porcelain vase instrument, more specifically say, it relates to a kind of live line working and changes bar type porcelain vase instrument.
Background technology
The bar type porcelain vase: fixed support current-carrying overhead wire makes overhead wire and cross-arm, electric pole insulation, and guarantees between the electrified body reliable safe distance is arranged.
Charged for replacement bar type porcelain vase is common events in operation in the live line working.
The operational method of the charged for replacement bar type porcelain vase of using in the 10kV distribution at present has two kinds: method is covered in lead suspension method and insulation.First kind, lead suspension method: 1. use arm suspension lead, need bigger working space.2. insulation car arm is stressed limited, can not hang big retaining apart from lead.3. lead is suspended in the air, can swing, and safe distance cannot say for sure to demonstrate,prove.Second kind, method is covered in insulation: 1. lead is placed on the cross-arm, does not have fixing point, has the line of race dangerous.2. the top cross-arm of single loop overhead wire is shorter, can not place lead.3. there is horizontal pull in the lead on the angle pole, has to run the danger that line is hurted sb.'s feelings.
Two kinds of live line working methods using at present receive conditionality, carry out live line working on can not be in the 10kV distribution all bar type porcelain vases.Like lower floor's bar type porcelain vase in the electric pole of double loop, in, the last sheaf space of lower floor's porcelain vase is narrow and small, the safe distance of arm and lead is not enough; Less than the bar type porcelain vase of 15 degree straight line angle poles, the lead on the angle pole has the horizontal pull of pointing to the interior angle side, has the danger of running line; Big retaining is apart from the bar type porcelain vase of electric pole, and insulation car arm rated load 1500kN keeps off influenced by external cause apart from lead greatly, and the lead downforce maybe be greater than 1500kN.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide a kind of reliable connection lead and cross-arm, flexible operation safe and efficient, meet each item indexs such as withstand voltage insulation heavy burden.
The objective of the invention is to realize through following technical scheme: bar type porcelain vase instrument is changed in a kind of live line working; Be followed successively by from top to bottom: the lower bayonet slot that be used for fixing the last draw-in groove of lead, the main material that is used to insulate, is used to connect cross-arm; The bottom surface of last draw-in groove is fixedly connected with the end face of said main material, and the bottom surface of said main material is fixedly connected with said lower bayonet slot end face.
As preferably: saidly go up last draw-in groove body that draw-in groove comprises U-shaped and be located at the said spring safety fastener of going up draw-in groove body U-shaped opening part, said on draw-in groove body width be 55mm-65mm, highly be 80mm-100mm.
As preferably: said main material is a composite post insulator.
As preferably: the lower bayonet slot body that said lower bayonet slot comprises U-shaped be located at the clamping screw on the said lower bayonet slot body, said lower bayonet slot body length is 70mm-100mm, width is 15mm-30mm, the degree of depth is 50mm-70mm.
As preferably: the end face of said bottom surface of going up draw-in groove 1 and said main material through the bolt of 2 8mm be connected, the bottom surface of said main material is connected with the bolt of said lower bayonet slot end face through 1 12mm.
The invention has the beneficial effects as follows: split type making is simple, flexible operation, and mechanical strength can reach requirement through rational design.The composite post insulator good insulating, mechanical strength is high.Clasp was closed automatically after last draw-in groove was put into lead, and is simple to operate.Do not need spring stress, clasp can firmly block lead, and reliable is not fragile.The use bolt connects, and easy to operate, mechanical strength and insulation property all can meet the demands.The present invention in the electric pole of double loop, lower floor's bar type porcelain vase, corner can be carried out live line working with big retaining apart from the bar type porcelain vase of electric pole less than the bar type porcelain vase of the straight line angle pole of 15 degree, expands the job area that the 10kV distribution network live line is changed the bar type porcelain vase.Simple to operate, easy accessibility, is increased work efficiency at the activity duration of shortening charged for replacement bar type porcelain vase.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is an end view of the present invention;
Fig. 3 is a upward view of the present invention;
Description of reference numerals: go up draw-in groove 1; Main material 2; Lower bayonet slot 3; Last draw-in groove body 4; Spring safety fastener 5; Lower bayonet slot body 6; Clamping screw 7.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done and to further describe.Though the present invention will combine preferred embodiment to describe, and should know, not represent to limit the invention among the said embodiment.On the contrary, the present invention will be contained alternative, modified model and the equivalent in the scope of the present invention that can be included in attached claims qualification.
One, selects overall plan
Table 1 scenario-frame analytical table
Through analyzing relatively, the integral structure design difficulty is big, and requirements of making is high, can't accomplish, and does not adopt.Split type making is simple, flexible operation, and therefore mechanical strength can reach requirement through rational design, adopts split-type structural, and definite split-type structural is by main material 2, last draw-in groove 1 and lower bayonet slot 3 three parts composition.
Two, select main material
(1) electrical characteristic: satisfy 1 minute 42kV power frequency withstand test.
(2) mechanical property: press 185mm
2Built on stilts plain conductor, each 100m of left and right sides span, calculating the lead downforce is 200m * 0.53kg/m * 9.8N/kg=1.038kN, gets 5 times of coefficient of safetys, the dead weight of main material should be more than 5.19kN.
Through analyzing, alternative material is: bar type porcelain vase, zinc oxide insulator and composite post insulator, and through the test comparative analysis.
The main material 2 material analysis tables of table 2
Through above analysis, scheme 3 composite post insulator mechanical strengths are high, and good insulation preformance is the preferred material of main material 2.
Three, go up the making of draw-in groove 1
During live line working, should use lead shield tube parcel lead, so fixing cord must first fixing cord shield tube.For secure fixation is lived the lead shield tube, to the width of last draw-in groove 1 with highly respectively propose 3 packet sizes, through the test comparative analysis.The length of last draw-in groove 1 does not have influence to blocking the lead shield tube, and for being convenient for carrying this instrument, getting its length is 60mm.
Draw-in groove 1 width is selected on the table 3
Draw-in groove 1 is highly selected on the table 4
Through analysis-by-synthesis, confirm to go up draw-in groove and be of a size of long 60mm, wide 60mm, high 90mm.
Four, the making of lower bayonet slot 3
1, structure choice
Analyze discussion through group, propose two kinds of organization plans, and through the test comparative analysis.
Table 5 operating time contrast test
Table 6 lower bayonet slot 3 comparative analysis tables
Through analyzing, bolt U type galvanized iron draw-in groove is more reliable, safer, is used.
2, size Selection
For reaching the requirement of safe and reliable fixedly 10kV circuit cross-arm,, 3 kinds of dimension plans are respectively proposed for the length and width of lower bayonet slot, the dark and diameter of bolt, through the test comparative analysis through group's Theoretical Calculation and sunykatuib analysis.
Table 7 lower bayonet slot size Selection table
Table 8 lower bayonet slot bolt option table
Through analysis-by-synthesis, confirm that lower bayonet slot is of a size of long 80mm, wide 20mm, dark 60mm, set bolt diameter 12mm.
Five, going up draw-in groove 1 and lower bayonet slot 3 selects with main material 2 connectivity scenarios
1, tentative programme is selected
Analyze through discussing, propose two kinds of connectivity scenarios, and analysis of experiments.
Draw-in groove 1 and lower bayonet slot 3 and main material 2 connectivity scenario option tables on the table 9
Through analyzing, welding can damage the insulation property of instrument, does not therefore adopt; The bolt and hanger in place easy accessibility, safe and reliable, scheme is feasible.
2, concrete Scheme Choice
Connect main material 2 and should select four parameters: go up draw-in groove 1 set bolt quantity and diameter, lower bayonet slot 3 set bolt quantity and diameters with last draw-in groove 1 and lower bayonet slot 3.For reaching the best of breed scheme, utilize orthogonal experiment that above four parameters are carried out optimization test, specific as follows:
(1) test objective
Through orthogonal test, find the best configuration scheme of draw-in groove 1 and lower bayonet slot 3 and main material 2 on the bolt.
(2) confirm to investigate index
1 minute 42kV power frequency withstand test of instrument after the assembling is qualified, and dead weight is greater than 5.19kN.
(3) formulate factor level (position level) table
Through Theoretical Calculation and sunykatuib analysis,, comprehensively become a factor position level table to three position levels of four selection of parameter.
The factor position level table of table 10 orthogonal test
(4) design and embodiment
Select for use orthogonal table L9 (34) to arrange this test, and log.
Table 11 orthogonal test table
(5) test result analysis
The result who " has a look at " with " calculation " has gap.According to the size of extreme difference R, the roughly primary and secondary of factor order, and the position level of selecting for use is earlier arranged.
Table 12 factor primary and secondary sequence arrangement table
Combination A2B1C1D1 that " has a look at " and the combination A2B1C1D3 of " calculation " compare, and mainly are that the D factor has gap.Can find out that from tendency chart (seeing Figure 15) the D3 factor is bigger than D1 factor dead weight.Therefore the A2B1C1D3 combination is selected in group's decision, and carries out verification experimental verification.
Table 13A2B1C1D3 composite test proof list
Result of the test shows; Selected 1 minute 42kV power frequency withstand test of A2B1C1D3 assembled scheme is qualified; Dead weight is the highest, satisfies service requirement, so main material 2 and last draw-in groove 1 are selected by group; The assemble method of lower bayonet slot 3 is bolts of going up draw-in groove 1 and two 8mm of main material 2 usefulness, and main material 2 is connected with the bolt of a 12mm of lower bayonet slot 3 usefulness.
Six, confirm preferred plan
Select draw-in groove 1 for use, the split-type structural of lower bayonet slot 3 and main material 2.Main material 2 is selected composite post insulator for use.Last draw-in groove 1 is selected long 60mm for use, wide 60mm, the U type aluminium alloy draw-in groove of the band spring safety fastener 5 of high 90mm.Lower bayonet slot 3 is selected long 80mm for use, and the clamping screw 7 of wide 20mm, dark 60mm is U type galvanized iron draw-in groove fixedly, clamping screw 7 diameter 12mm.Main material 2 and last draw-in groove 1, lower bayonet slot 3 uses bolt and hanger in place, the bolt of last draw-in groove 1 and two 8mm of main material 2 usefulness, main material 2 is connected with the bolt of a 12mm of lower bayonet slot 3 usefulness.
The assembling of present embodiment:
1, does the bolt hole of 2 internal diameter 8mm at main material 2 tops, 2 pitch of holes 24mm.
2, do the bolt hole of 1 internal diameter 12mm at main material 2 bottom centre positions.
3, do the bolt hole correspondence at hole and main material 2 tops of 2 internal diameter 8mm in last draw-in groove 1 bottom.
4, the bolt hole of the bolt of 1 12mm of welding and main material 2 bottoms is corresponding on lower bayonet slot 3 tops.
5, use the bolt assembling.
Claims (7)
1. bar type porcelain vase instrument is changed in a live line working; It is characterized in that: be followed successively by from top to bottom: the lower bayonet slot (3) that be used for fixing the last draw-in groove (1) of lead, the main material (2) that is used to insulate, is used to connect cross-arm; The bottom surface of last draw-in groove (1) is fixedly connected with the end face of said main material (2), and the bottom surface of said main material (2) is fixedly connected with said lower bayonet slot (3) end face.
2. bar type porcelain vase instrument is changed in live line working according to claim 1, it is characterized in that: the said draw-in groove (1) of going up comprises the last draw-in groove body (4) of U-shaped and is located at the said spring safety fastener (5) of going up draw-in groove body (4) U-shaped opening part.
3. bar type porcelain vase instrument is changed in live line working according to claim 2, it is characterized in that: said upward draw-in groove body (4) width is 55mm-65mm, highly is 80mm-100mm.
4. bar type porcelain vase instrument is changed in live line working according to claim 1, and it is characterized in that: said main material (2) is a composite post insulator.
5. bar type porcelain vase instrument is changed in live line working according to claim 1, and it is characterized in that: said lower bayonet slot (3) comprises the lower bayonet slot body (6) of U-shaped and is located at the clamping screw (7) on the said lower bayonet slot body (6).
6. bar type porcelain vase instrument is changed in live line working according to claim 5, and it is characterized in that: said lower bayonet slot body (6) length is 70mm-100mm, and width is 15mm-30mm, and the degree of depth is 50mm-70mm.
7. bar type porcelain vase instrument is changed in live line working according to claim 1; It is characterized in that: said bottom surface of going up draw-in groove (1) is connected through 2 bolt with the end face of said main material (2), and the bottom surface of said main material (2) is connected with the bolt of said lower bayonet slot (3) end face through 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102113867A CN102403671A (en) | 2011-07-27 | 2011-07-27 | Tool for replacing rod type porcelain insulator through live-wire work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102113867A CN102403671A (en) | 2011-07-27 | 2011-07-27 | Tool for replacing rod type porcelain insulator through live-wire work |
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| Publication Number | Publication Date |
|---|---|
| CN102403671A true CN102403671A (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102113867A Pending CN102403671A (en) | 2011-07-27 | 2011-07-27 | Tool for replacing rod type porcelain insulator through live-wire work |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842870A (en) * | 2012-09-17 | 2012-12-26 | 天津市电力公司 | Novel insulating lead wire fixing bracket |
| CN103066531A (en) * | 2013-01-14 | 2013-04-24 | 义乌市供电局 | Supporting frame for 10 KV line live wire |
| CN106300134A (en) * | 2016-09-22 | 2017-01-04 | 国家电网公司 | The instrument of wire is fixed when charged for replacement 10kV distribution line needle porcelain bottle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007073197A (en) * | 2005-09-02 | 2007-03-22 | Chubu Electric Power Co Inc | Recycling method and scrapping apparatus of lighting arrester for power distribution |
| CN201181826Y (en) * | 2008-04-24 | 2009-01-14 | 张洋 | 10KV overhead conductor insulation support fixer |
| CN201549854U (en) * | 2009-11-06 | 2010-08-11 | 河南省电力公司郑州供电公司 | Inter-conductor insulation supporting device |
| CN202153621U (en) * | 2011-07-27 | 2012-02-29 | 东阳市供电局 | Tool for live-line replacing rod-like porcelain vase |
-
2011
- 2011-07-27 CN CN2011102113867A patent/CN102403671A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007073197A (en) * | 2005-09-02 | 2007-03-22 | Chubu Electric Power Co Inc | Recycling method and scrapping apparatus of lighting arrester for power distribution |
| CN201181826Y (en) * | 2008-04-24 | 2009-01-14 | 张洋 | 10KV overhead conductor insulation support fixer |
| CN201549854U (en) * | 2009-11-06 | 2010-08-11 | 河南省电力公司郑州供电公司 | Inter-conductor insulation supporting device |
| CN202153621U (en) * | 2011-07-27 | 2012-02-29 | 东阳市供电局 | Tool for live-line replacing rod-like porcelain vase |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842870A (en) * | 2012-09-17 | 2012-12-26 | 天津市电力公司 | Novel insulating lead wire fixing bracket |
| CN103066531A (en) * | 2013-01-14 | 2013-04-24 | 义乌市供电局 | Supporting frame for 10 KV line live wire |
| CN103066531B (en) * | 2013-01-14 | 2016-06-15 | 义乌市供电局 | A kind of 10 KV line live wire bracing frames |
| CN106300134A (en) * | 2016-09-22 | 2017-01-04 | 国家电网公司 | The instrument of wire is fixed when charged for replacement 10kV distribution line needle porcelain bottle |
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Application publication date: 20120404 |