CN102969672B - Crossing-type straight-route clamp - Google Patents
Crossing-type straight-route clamp Download PDFInfo
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- CN102969672B CN102969672B CN201210505332.6A CN201210505332A CN102969672B CN 102969672 B CN102969672 B CN 102969672B CN 201210505332 A CN201210505332 A CN 201210505332A CN 102969672 B CN102969672 B CN 102969672B
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- fixture body
- hole
- crossing
- jig
- type straight
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- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000003491 array Methods 0.000 claims abstract description 5
- 239000012212 insulator Substances 0.000 abstract description 15
- 239000000725 suspension Substances 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 238000009413 insulation Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
<b/> the invention discloses a kind of Crossing-type straight-route clamp, include two separate, structure is identical, operationally two fixture bodies of symmetric arrays, described fixture body be tabular from down to up in skewed distributed architecture, the lower hypotenuse of fixture body is step-like structure, two step places of fixture body are provided with through hole, described Crossing-type straight-route clamp also comprises two coupling bars can filled on fixture body step two through hole, the length of described coupling bar is greater than the gap width between two cross-arms, the upper splay end of fixture body is provided with the through hole for installing lead screw device.The sit astride on a horse success of the universal forthright jig development of formula, thoroughly solving " tangent suspension tower two string two suspension insulator " cannot this difficult problem of hotline maintenance comprehensively, simplify working procedure, improve maintenance benefit and service work fail safe, and alleviate the labour intensity of personnel, possess the generalization in the same industry.
Description
Technical field
The present invention relates to a kind of live-line replacing insulator string jig, particularly a kind of Crossing-type straight-route clamp.
Background technology
At current 220kV and above transmission line, because transmission capacity is comparatively large, in order to suppress corona discharge and reduce line reactance, improve the ability of supplying electric power of circuit, newly-increased 220kV transmission line majority have employed the two suspension insulator erection mode of double bundle conductor.But bring some stubborn problems also to thus the live line working of circuit: for two division two pendency drum type tower, because two division two pendency drum type tower is double back wiring on the same tower mode, this sections tower is for general safety structural design, and cross-arm width is short, and cross arm lateral side shrouding area is large.If adopt common jig operation, immediately below jig stop by two insulator string string, the insulation pull-rod with gib head cannot be connected with cross-arm jig; If adopt common lateral side clamp, because cross arm lateral side shrouding area is large, cross-arm jig can only be arranged on and the position of wire not on same vertical line, and insulation pulling plate also cannot be connected with jig, therefore cannot realize the replacing insulator under electrified operation of this sections tower.Another existing jig (comprising straight line card and straight line checkpost) is stressed on the auxiliary material framework of steel tower triangle cross-arm, because auxiliary material is that the main material of triangular support is stressed, therefore auxiliary material design is mainly support force, the rollover power that jig installation produces and shearing force threaten the structure of the auxiliary material of shaft tower and stressed directly generation, easy generation jig rollover accident, therefore directly stressed in the main material of shaft tower when sit astride on a horse formula jig works, avoid the stressed auxiliary material in checkpost simultaneously, destroy shaft tower original structure stressed.The instrument carrying out replacing insulator under electrified operation employing at present on 220kV transmission line straight line pole has two kinds.One is generic linear jig; One is straight line checkpost.These two kinds of jig operations are adopted to have very large defect.
1) defect of employing generic linear jig is:
Drum type tower, owing to being double back wiring on the same tower mode, considers the integrally-built safety and firmness of steel tower steel tower, and cross-arm is along the line steel tower cross-arm shorter (as Fig. 1) of the general more single time erection mode of width of line direction.The common cross-arm jig of such erection mode, the cross-arm needing respective width could be installed appropriate, if immediately below jig stop by insulator string; the insulation pull-rod with thread hook could be connected with cross-arm jig, and the steel tower of the two suspension insulator erection mode of double bundle conductor, an insulator string has been had more compared with single string suspension insulator, now insulator string is just in time in immediately below cross-arm jig installation site, result in insulation pull-rod to be connected with cross-arm jig, cross-arm jig is installed unsuccessfully.
2) defect in employing straight line checkpost is:
Drum type tower cross arm lateral side shrouding area is large.Straight line checkpost can only be arranged on and the position of wire not on same vertical line, and insulation pulling plate cannot be connected with jig screw mandrel.After connecting by force as adopted, central axis and the jig screw mandrel central axis of insulation pulling plate will not on the same axis, shearing force will be produced after tightening up screw mandrel, insulation pulling plate can be caused time serious to destroy fracture, the rollover power of jig installation shaft tower auxiliary material generation simultaneously and shearing force threaten the structure of the auxiliary material of shaft tower and stressed directly generation, easy generation jig rollover accident, therefore the replacing insulator under electrified operation of this sections tower cannot be realized.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, and provide a kind of and be applicable to the two charged Crossing-type straight-route clamp more of suspension insulator of double bundle conductor.
A kind of Crossing-type straight-route clamp, its structural feature is: include two separate, structure is identical, operationally two fixture bodies of symmetric arrays, described fixture body be tabular from down to up in skewed distributed architecture, the lower hypotenuse of fixture body is step-like structure, two step places of fixture body are provided with through hole, described Crossing-type straight-route clamp also comprises two coupling bars can filled on fixture body step two through hole, the length of described coupling bar is greater than the gap width between two cross-arms, the upper splay end of fixture body is provided with the through hole for installing lead screw device.
The Crossing-type straight-route clamp of this structure, adopts two fixture bodies of tabular to form, first greatly can alleviate the weight of each fixture body, thus reduce carrying intensity, secondly, owing to adopting the structure of tabular, therefore can be tucked in the middle of the gap between two cross-arms, be convenient to install.When mounted, only need by the middle of the gap being tucked into two cross-arms of two fixture body symmetric arrays, the upper end of fixture body is outward-dipping, and the step on the fixture body made is stuck in and becomes vertical with it or on the cross-arm of cross arrangement, then be tucked into by coupling bar in the upper lower through-hole of fixture body, coupling bar will be stuck on cross-arm.Then again lead screw device is installed to the replacing that can realize insulator in the through hole of fixture body upper end.
Described fixture body is structure skewed in triangle from the bottom to top.
Adopt this structure, ensure can weight reduction as much as possible while fixture body realizes its function.
Described coupling bar is the groove being provided with annular in the middle.
The groove arranging annular is convenient to fixture body to be stuck on coupling bar, and the axis along coupling bar positions, directly stressed when making fixture body stressed, avoids fixture body laterally rollover.
In sum, the present invention's following advantage compared to existing technology:
The platy structure of Crossing-type straight-route clamp of the present invention rides on stressed, the assembling difference of Ta Shang branch and similar jig, block structure, squat stressed, ground overall package, upper tower is stressed, 1) monolithic jig weight is 30% of like product; 2) branch's assembling has higher flexibility and operability than like product overall package; 3) this jig is vertical stressed more reasonable by the axial drift angle of the similar jig of force rate on main material, does not stay hidden danger.
The sit astride on a horse success of the universal forthright jig development of formula, thoroughly solving " tangent suspension tower two string two suspension insulator " cannot this difficult problem of hotline maintenance comprehensively, simplify working procedure, improve maintenance benefit and service work fail safe, and alleviate the labour intensity of personnel, possess the generalization in the same industry.As promoted in the whole province or the whole nation, the burden of each office line maintenance can be alleviated, and the waste of the manpower and materials avoiding the unnecessary investment of many electrical network technological transformation and repeated construction to cause and fund.
Accompanying drawing explanation
Fig. 1 is the structural representation of Crossing-type straight-route clamp of the present invention.
Fig. 2 is the scheme of installation of Crossing-type straight-route clamp.
Fig. 3 is the A direction view of Fig. 2.
Under label declaration 1 fixture body 11 fixture body the step-like structure 12 fixture body step place of hypotenuse through hole 2 coupling bar 21 coupling bar on annular groove.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail.
Embodiment 1
A kind of Crossing-type straight-route clamp is as Fig. 1-2, : include two separate, structure is identical, operationally two fixture bodies 1 of symmetric arrays, described fixture body be tabular from down to up in skewed distributed architecture, the lower hypotenuse of fixture body is step-like structure 11, two step places of fixture body are provided with through hole 12, described Crossing-type straight-route clamp also comprises two coupling bars 2 can filled on fixture body step two through hole, the length of described coupling bar is greater than the gap width between two cross-arms, the upper splay end of fixture body is provided with the through hole for installing lead screw device.Described coupling bar is the groove 21 being provided with annular in the middle.Described fixture body is structure skewed in triangle from the bottom to top.
It is same as the prior art that the present embodiment does not state part.
Claims (1)
1. a Crossing-type straight-route clamp, it is characterized in that: include two separate, structure is identical, the operationally fixture body of symmetric arrays, each fixture body be tabular from down to up in skewed distributed architecture, the lower hypotenuse of each fixture body is step-like structure, the ledge structure of the lower hypotenuse of each fixture body includes two steps, a through hole is respectively arranged with at two step places of each fixture body, each fixture body also includes the coupling bar of two, two described coupling bars are filled in the through hole on each fixture body two step respectively, the length of described coupling bar is greater than the gap width between two cross-arms, the upper splay end of fixture body is provided with the through hole for installing lead screw device, described fixture body is structure skewed in triangle from the bottom to top, described coupling bar is provided with the groove of annular in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505332.6A CN102969672B (en) | 2012-11-30 | 2012-11-30 | Crossing-type straight-route clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505332.6A CN102969672B (en) | 2012-11-30 | 2012-11-30 | Crossing-type straight-route clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102969672A CN102969672A (en) | 2013-03-13 |
| CN102969672B true CN102969672B (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210505332.6A Active CN102969672B (en) | 2012-11-30 | 2012-11-30 | Crossing-type straight-route clamp |
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| Country | Link |
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| CN (1) | CN102969672B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253394B (en) * | 2013-09-05 | 2016-10-05 | 国家电网公司 | A kind of replacing instrument of strain insulator string |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360116Y (en) * | 2008-12-11 | 2009-12-09 | 河北省电力公司超高压输变电分公司 | Tower end bearing force fixture for tangent tower live-line work of high voltage power transmission line |
| CN202206070U (en) * | 2011-09-19 | 2012-04-25 | 湖南省电力公司长沙电业局 | Aerodynamic insulator replacing tool for steel tower side phase cross arms |
| CN202260254U (en) * | 2011-10-08 | 2012-05-30 | 西宁供电公司 | Adjustable fixture for live line work of replacing linear whole-string insulator of four-split conductor |
| CN203014267U (en) * | 2012-11-30 | 2013-06-19 | 福建省电力有限公司 | A spanning straight clamp |
-
2012
- 2012-11-30 CN CN201210505332.6A patent/CN102969672B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201360116Y (en) * | 2008-12-11 | 2009-12-09 | 河北省电力公司超高压输变电分公司 | Tower end bearing force fixture for tangent tower live-line work of high voltage power transmission line |
| CN202206070U (en) * | 2011-09-19 | 2012-04-25 | 湖南省电力公司长沙电业局 | Aerodynamic insulator replacing tool for steel tower side phase cross arms |
| CN202260254U (en) * | 2011-10-08 | 2012-05-30 | 西宁供电公司 | Adjustable fixture for live line work of replacing linear whole-string insulator of four-split conductor |
| CN203014267U (en) * | 2012-11-30 | 2013-06-19 | 福建省电力有限公司 | A spanning straight clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102969672A (en) | 2013-03-13 |
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