CN102237654B - Method for replacing jumper string using tool at double angle hanging point - Google Patents
Method for replacing jumper string using tool at double angle hanging point Download PDFInfo
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- CN102237654B CN102237654B CN201110186326.4A CN201110186326A CN102237654B CN 102237654 B CN102237654 B CN 102237654B CN 201110186326 A CN201110186326 A CN 201110186326A CN 102237654 B CN102237654 B CN 102237654B
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- jumper string
- insulator
- hanging point
- replacing
- jumper
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Abstract
The invention relates to the technical field of power transmission line construction and overhaul and discloses a tool and method for replacing a jumper string at the double angle hanging point. A fixture 1 of the tool is a U-shaped board, two sides of the U-shaped board are respectively integrated with one right angle folded plate, the two right angle folded plates are symmetrical and are provided with a connecting hole which is used to connect an annular screw 3, the annular screw 3 penetrates through the connecting hole and is fixed with the fixture through a nut, and the ring of the annular screw 3 is connected with a cyclic pulley 5. According to the method, the fixture 1 is installed on a double angle hanging point 4 of a tower pole and is fixed through the annular screw 3 and the cyclic pulley 5 is hung on the annular screw 3 for replacing the jumper string insulator. By utilizing the tool and the method provided by the invention, the deformation of a cross arm angle iron can be avoided, people on the tower can finish the binding of the insulators on the cross arm without coming off from the power transmission line, thus the working procedure is simplified, the working efficiency and the safety factor of high-attitude working can be improved; and meanwhile, the structure of the tool is simple, the tool is convenient to use, the process and manufacture are simple and convenient and the production cost is lower, so that the tool is easy to promote and apply.
Description
Technical field
The technical field that the present invention relates to power transmission sequence maintenance, relates in particular to a kind of method that instrument with replacing jumper string at double angle hanging point is changed jumper string.
Background technology
At present, single loop strain tower adopts dry font tower mostly, the drainage jumper string hanging point of this tower adopts double angle as shown in Figure 1 mostly, and the replacing method of this insulator jumper string adopts lever hoist to change at present mostly, adopts in practice lever hoist to change some problems of depositing.
With lever hoist, change the problem existing:
1, with lever hoist, change the insulator jumper string operation of need to rolling off the production line, drainage insulator jumper string is different with insulator on wire does not have tension force effect poor stability, and operating personnel on line balanced capacity is poor, inefficiency.
2, the jumper string replacing insulator compound wire jumper insulator string that will prevent dust, also needs with rope ladder up and down, and inefficiency, also exists potential safety hazard.
3, with lever hoist, coordinate the lifting of steel wire cover, easily cause the distortion of hanging point angle bar, Zinc Scaling, affect the whole stressed and erosion resistance of cross-arm.
4, due to drainage thread does not have tension force can be by insulator pull-up with circulation coaster, with steel wire, overlap fixed block, because steel wire cover respectively reserves the inserting depth of 300mm by security regulations two ends, the stressed rear easy elongation of the inconvenience that is fastened and steel wire loop causes apart from insulator hanging point far away, cannot colligation on cross-arm in the effective range of lifting, though there is seldom application of imagination at present.
Summary of the invention
The problem existing in real work based on replacing jumper string insulator, the invention provides a kind of instrument with replacing jumper string at double angle hanging point and change the method for jumper string, in changing jumper string insulator process, personnel's manufactured without inserting winding can complete more changing jobs of insulator, improved operating speed, reduced task difficulty, the operating efficiency of changing jumper string insulator is increased substantially.
For achieving the above object, the present invention adopts following technical scheme:
A kind of instrument with replacing jumper string at double angle hanging point is changed the method for jumper string, wherein this instrument comprises jig (1), fixedly jackscrew (2), ring-type screw (3), hanging point angle bar (4) and circulation coaster (5), described jig (1) is " U " letter stencil, " U " letter stencil both sides are integrally formed with right angle flap respectively, two right angle flaps are symmetrical, and be provided with the connecting hole with ring-type screw (3), ring-type screw (3) is fixed by nut through connecting hole and jig, and the annulus of ring-type screw (3) is connected with circulation coaster (5); The step of the method is as follows:
1), the instrument of replacing jumper string at double angle hanging point is installed, be that the jig of replacing jumper string at double angle hanging point instrument is arranged on tower bar double angle hanging point angle bar, with fixing jackscrew, fix, and be fixed with the ring-type screw of one end band; On the screw ring of the ring-type screw that jig bottom connects, hang circulation coaster, the coaster that makes to circulate is apart from double angle hanging point angle bar near distance;
2), on tower, cross-arm maintainer will tear endless rope colligation open on second porcelain vase of jumper string insulator;
3), colligation is complete, under tower, cooperation personnel pull rope, and jumper string insulator is not stressed, on tower, personnel take the jumper string insulator top being connected with hanging point, and jumper string insulator is fallen on wire cross-arm together with drainage thread;
4), under personnel, to wire cross-arm place, remove the jumper string insulator bottom (13) being connected with drainage thread on tower, the jumper string insulator of dismounting is fallen earthward;
5), the new jumper string insulator of changing is installed, with endless rope colligation, move the jumper string insulator of newly changing to cross-arm place, load onto the jumper string insulator bottom being connected with drainage thread, pull subsequently endless rope to move jumper string insulator to ground wire cross-arm hanging point place, jumper string insulator top is loaded onto with hanging point bulb and is connected, complete the replacing of drainage jumper string insulator.
A kind of instrument with replacing jumper string at double angle hanging point is changed the method for jumper string, fall the jumper string insulator and the jumper string insulator that draws high new replacing of dismounting, adopt and carry out simultaneously, on the ground that the jumper string insulator colligation of newly changing is good, utilize the jumper string insulator weight of the dismounting of falling, coordinate manpower that the jumper string insulator of newly changing is raised to wire cross-arm place, the jumper string insulator of pulling down is fallen earthward.
Owing to adopting technical scheme as above, the present invention has following superiority:
1) application of the present invention, cross-arm angle bar force way while having changed replacing insulator, by former single-point centralized load, stressed to change face into stressed, avoided the distortion of cross-arm angle bar, guarantee cross-arm overall mechanical strength, improved operating personnel's coefficient of safety, improved the safe operation of electrical network.
2) adopt the application of operational method of the present invention and instrument, substituted the operational method that former steel wire loop is hung lever hoist, overcome with steel wire cover difficulty inconvenient and that need to roll off the production line because of lashing location distance is installed.
3) use lever hoist operational method, the coaster that need to circulate equally coordinates endless rope, also need to transmit steel wire cover and lever hoist with endless rope, use this instrument can shorten circulation coaster apart from the distance of suspension string hanging point, realize personnel's manufactured without inserting winding on tower and can complete the colligation to insulator on cross-arm, overcome with steel wire cover difficulty inconvenient and that need to roll off the production line because of lashing location distance has been installed, adopt this operational method to simplify working procedure, reduced construction tool, improved the coefficient of safety of operating efficiency and work high above the ground, reduced the transport difficulty of poor transport area instrument, reduced labour intensity.
4) the present invention is not only applicable to obtaining flat prone the installing and using of double-angle iron hanging point as shown in figure mono-, is also applicable to flat supine the installing and using of double-angle iron hanging point as shown in Figure 2.
5) adopt this method not to be only applicable to dust-proof insulator and change dust-proof insulator, be also suitable for common replacing insulator dust-proof insulator and dust-proof insulator and change and meet insulator.
6) tool construction of the present invention is simple, easy to use, and processing and fabricating is easy, and production cost is lower, is easy to apply.
Accompanying drawing explanation
Fig. 1 connects hanging point double angle towards upper structure chart for changing the instrument of drainage jumper string;
Fig. 2 connects the prone structure chart of hanging point double angle for changing the instrument of drainage jumper string;
Fig. 3 is the operation schematic diagram of replacing jumper string at double angle hanging point instrument;
Fig. 4 is the schematic diagram of double angle drainage jumper string;
In figure: be 1. jig, 2. for fixing jackscrew, 3. for ring-type screw, 4. for hanging point angle bar, be 5. circulation coaster, 6. jumper string, 7. ground wire cross-arm, 8. drainage thread, 9. strain tower one end wire, 10. wire cross-arm, 11. corner blocks, 12. jumper string tops, 13. jumper string bottoms.
Embodiment
As shown in Figure 1,2,3, 4, a kind of instrument of replacing jumper string at double angle hanging point, comprise: jig 1, fixedly jackscrew 2, ring-type screw, hanging point angle bar, circulation coaster 5, described jig 1 is " U " letter stencil, " U " letter stencil both sides are integrally formed with right angle flap respectively, and two right angle flaps are symmetrical, and are provided with the connecting hole with ring-type screw 3, ring-type screw 3 is fixed by nut through connecting hole and jig, and the annulus of ring-type screw 3 is connected with circulation coaster 5.
A method for replacing jumper string at double angle hanging point, its step is as follows:
1, replacing jumper string at double angle hanging point instrument being installed, is that the jig of replacing jumper string at double angle hanging point instrument 1 is arranged on tower bar double angle hanging point 4, fixing with jackscrew 2, and is fixed with the ring-type screw 3 of one end band; On the screw ring of the ring-type screw 3 that jig 1 bottom connects, hang circulation coaster 5, the coaster that makes to circulate is apart from double angle hanging point 4 near distances;
2, on tower, cross-arm maintainer will tear endless rope colligation open on second porcelain vase of jumper string insulator;
3, colligation is complete, and under tower, cooperation personnel pull rope, and insulator is not stressed, and on tower, personnel take the insulator top 12 being connected with hanging point, and jumper string insulator is fallen on wire cross-arm 10 together with drainage thread 8;
4, on tower, under personnel, to wire cross-arm 10 places, remove the bottom 13 that jumper string insulator is connected with drainage thread 8, the jumper string insulator of dismounting is fallen earthward;
5, the new jumper string insulator of changing is installed, with endless rope colligation, move the jumper string insulator of newly changing to cross-arm place, the bottom 13 of loading onto jumper string insulator is connected with drainage thread, pull subsequently endless rope to move insulator to ground wire cross-arm hanging point place, jumper string insulator top 12 is loaded onto with hanging point bulb and is connected, complete the replacing of drainage jumper string insulator.
A kind of method of replacing jumper string at double angle hanging point, the described jumper string insulator and the jumper string insulator that draws high new replacing that falls dismounting, or employing is carried out simultaneously, on the ground that the jumper string insulator colligation of newly changing is good, utilize the jumper string insulator weight of the dismounting of falling, coordinate manpower that the jumper string insulator of newly changing is raised to wire cross-arm 10 places, the jumper string insulator of pulling down is fallen earthward.
Concrete operations are as follows: jig 1 is arranged on and is carried on a shoulder pole on double-angle iron hanging point 4, fixing with jackscrew 2, fixing with the screw 3 of ring-type, circulation coaster 5 is hung on ring-type screw 3 rings, on tower personnel by endless rope colligation on second porcelain vase of jumper string insulator, under tower, cooperation personnel pull rope by corner block 11, and insulator is not stressed; On tower, personnel take the jumper string insulator top 12 being connected with hanging point, jumper string insulator is fallen on cross-arm together with drainage thread 8, on tower, under personnel, to cross-arm place, remove the jumper string insulator bottom 13 being connected with drainage thread, insulator is fallen earthward, then with endless rope colligation, move the jumper string insulator of newly changing to wire cross-arm 10 places and load onto jumper string insulator bottom 13 and be connected with drainage thread 8, drainage thread 8 is connected with strain tower one end wire 9; Pull subsequently endless rope that the jumper string insulator of newly changing is moved to and carried on a shoulder pole 7 hanging point places, the replacing that completes insulator is loaded onto in jumper string insulator top 12 and hanging point.Also can bind new replacing insulator in bottom, during the line of fall, utilize the gravity of the jumper string insulator of pulling down to coordinate manpower, the jumper string insulator of pulling down is fallen earthward, move the jumper string insulator of newly changing to wire cross-arm 10 places, by as above method, carry out the installation of drainage jumper string.
Claims (2)
1. an instrument that uses replacing jumper string at double angle hanging point is changed the method for jumper string, wherein this instrument comprises jig (1), fixedly jackscrew (2), ring-type screw (3), hanging point angle bar (4) and circulation coaster (5), described jig (1) is " U " letter stencil, " U " letter stencil both sides are integrally formed with right angle flap respectively, two right angle flaps are symmetrical, and be provided with the connecting hole coordinating with ring-type screw (3), ring-type screw (3) is fixed by nut through connecting hole and jig, and the annulus of ring-type screw (3) is connected with circulation coaster (5); It is characterized in that: the step of the method is as follows:
1) instrument of replacing jumper string at double angle hanging point, is installed, that the jig of replacing jumper string at double angle hanging point instrument (1) is arranged on tower bar double angle hanging point (4), with fixedly jackscrew (2) is fixing, and be fixed with the ring-type screw (3) of one end band; On the screw ring of the ring-type screw (3) that jig (1) bottom connects, hang circulation coaster (5), the coaster (5) that makes to circulate is apart from double angle hanging point (4) near distance;
2), on tower, cross-arm maintainer will tear endless rope colligation open on second porcelain vase of jumper string (6) insulator;
3), colligation is complete, under tower, cooperation personnel pull rope, and jumper string (6) insulator is not stressed, on tower, personnel take the jumper string insulator top (12) being connected with hanging point, and jumper string (6) insulator is fallen on wire cross-arm (10) together with drainage thread;
4), under personnel, to wire cross-arm (10), locate to remove the jumper string insulator bottom (13) being connected with drainage thread on tower, the jumper string insulator of dismounting is fallen earthward;
5), the new jumper string insulator of changing is installed, with endless rope colligation, move jumper string (6) insulator of newly changing to cross-arm place, load onto the jumper string insulator bottom (13) being connected with drainage thread, pulling subsequently endless rope to move jumper string (6) insulator to ground wire cross-arm hanging point (7) locates, jumper string insulator top (12) is loaded onto with hanging point bulb and is connected, complete the replacing of drainage jumper string insulator.
2. a kind of instrument with replacing jumper string at double angle hanging point as claimed in claim 1 is changed the method for jumper string, it is characterized in that: jumper string (6) insulator and the jumper string insulator that draws high new replacing that fall dismounting, adopt and carry out simultaneously, on the ground that jumper string (6) the insulator colligation of newly changing is good, utilize jumper string (6) the insulator weight of the dismounting of falling, coordinate manpower that jumper string (6) insulator of newly changing is raised to wire cross-arm (10) and locate, the jumper string of pulling down (6) insulator is fallen earthward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186326.4A CN102237654B (en) | 2011-07-05 | 2011-07-05 | Method for replacing jumper string using tool at double angle hanging point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186326.4A CN102237654B (en) | 2011-07-05 | 2011-07-05 | Method for replacing jumper string using tool at double angle hanging point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102237654A CN102237654A (en) | 2011-11-09 |
| CN102237654B true CN102237654B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110186326.4A Expired - Fee Related CN102237654B (en) | 2011-07-05 | 2011-07-05 | Method for replacing jumper string using tool at double angle hanging point |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089056B (en) * | 2013-01-31 | 2014-11-05 | 辽宁省电力有限公司鞍山供电公司 | Installation metal tool and using method of tangent suspension tower changing single hanging point to double hanging points |
| CN105514874A (en) * | 2016-02-24 | 2016-04-20 | 国网河北省电力公司衡水供电分公司 | Lifting tool for mounting and demounting straight-line ceramic insulator and method using lifting tool to mount and demount insulator |
| CN111268581B (en) * | 2020-03-02 | 2024-03-22 | 国网电力空间技术有限公司 | Ground wire lifter utilizing ground wire cross arm back-to-back angle steel operation |
| CN114172078A (en) * | 2021-12-10 | 2022-03-11 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Transmission line overhauls supports with automatically regulated and turns to coaster device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2775284B2 (en) * | 1989-03-23 | 1998-07-16 | 旭テック株式会社 | Wire fixing bracket |
| CN201398032Y (en) * | 2008-11-11 | 2010-02-03 | 河南省电力公司平顶山供电公司 | Hanging ring fixing device for hanging angle iron pulley of iron tower |
| CN201674159U (en) * | 2010-05-07 | 2010-12-15 | 安徽省电力公司宿州供电公司 | Double angle-iron hanging-point insulator string electrification exchange tool |
| CN202197048U (en) * | 2011-07-05 | 2012-04-18 | 河南省电力公司洛阳供电公司 | Double angle steel hanging point lifting and connecting tool for tower use |
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2011
- 2011-07-05 CN CN201110186326.4A patent/CN102237654B/en not_active Expired - Fee Related
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| CN102237654A (en) | 2011-11-09 |
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Granted publication date: 20140416 Termination date: 20160705 |