CN102983529B - Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines - Google Patents
Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines Download PDFInfo
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- CN102983529B CN102983529B CN201210555809.1A CN201210555809A CN102983529B CN 102983529 B CN102983529 B CN 102983529B CN 201210555809 A CN201210555809 A CN 201210555809A CN 102983529 B CN102983529 B CN 102983529B
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- insulator string
- machete
- high voltage
- card
- wing clamp
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- 239000012212 insulator Substances 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 241001063191 Elops affinis Species 0.000 claims description 29
- 235000002756 Erythrina berteroana Nutrition 0.000 claims description 29
- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 claims description 29
- 238000012423 maintenance Methods 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002180 anti-stress Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention discloses a replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines. The replacing tool comprises two large knife clamps, wherein the lower ends of the large knife clamps are connected by taking-up mechanisms. The taking-up mechanisms comprise combined hydraulic screw rods and insulating pull rods, wherein the two ends of the insulating pull rods are respectively connected with the lower ends of the two large knife clamps through the combined hydraulic screw rods. According to the replacing tool, the two taking-up mechanisms and the two large knife clamps are used together in a matching manner, loads on the insulator chains can be transferred to the replacing tool simply and conveniently, so that the insulator chains are in loose states, the overhaul and the replacement of the insulator chains are facilitated, and the replacing tool is simple in structure, convenient and safe to use and applicable to the maintenance and the overhaul of power transmission equipment on the ultra-high voltage transmission lines and high above the ground.
Description
Technical field
The present invention relates to UHV transmission line maintenance, live working tools field, particularly relate to a kind of extra high voltage line tetrad strain composite insulator string and change instrument.
Background technology
Before the present invention proposes, along with the develop rapidly of power industry, ultrahigh voltage alternating current transmission lines starts the technology adopting tetrad Anti-tension composite insulator to run.But because the transmission line equipment hung on the line is more, so there is larger load at the core through screw rod place of duplex plate and two ends place on circuit, and this load first must be laid down in Maintenance and Repair equipment and live line working process, again owing to when Maintenance and Repair equipment and live line working being high-altitude manpower operation, and transmission line band ultra high voltage electric current, therefore existing transmission facility and maintenance utensil all can not meet ultra-high voltage AC transmission hotline maintenance needs.Thus developing corresponding Maintenance and Repair equipment and live line working special tool utensil becomes the importance ensureing ultrahigh voltage alternating current transmission lines safe and stable operation.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, providing a kind of extra high voltage line tetrad strain composite insulator string simple, safe, laborsaving and easy to use to change instrument.
In order to realize above object, a kind of extra high voltage line tetrad strain composite insulator string provided by the invention changes instrument, comprise two machete cards, the lower end of described two machete cards is connected by take-up mechanism, described take-up mechanism comprises assembled hydraulic screw mandrel and insulated tension pole, and described insulated tension pole two ends are connected with the lower end of described two machete cards respectively by a set of described assembled hydraulic screw mandrel.Two machete cards are coordinated to use together by two cover take-up mechanisms, can simply and easily by the load transfer on insulator string on this replacing instrument, thus make described insulator string be in relaxed state, and so that the maintenance of described insulator string and replacing, the simple and safety easy to use of structure.
This replacing instrument also comprises the pulling force transfer device for shifting tension force suffered by insulator string link place bolt, described pulling force transfer device comprises wing clamp, tightens up screw mandrel and end card, described wing clamp is installed on described machete card, described end card is installed on the insulator string termination of described insulator string, described in tighten up screw mandrel two ends and be connected with holding to block with described wing clamp respectively.Because the load on insulator string is transferred, insulator string is in relaxed state, and insulator string is heavier, so the deadweight of insulator string can produce pulling force to the bolt at insulator string link place, thus is unfavorable for removing stage makeup and costume of bolt; Described pulling force can be transferred on described pulling force transfer device by the pulling force transfer device added, thus reduces the difficulty that described bolt removes stage makeup and costume.
In such scheme, the middle part of described wing clamp is provided with the bayonet socket matched with described machete card, and described end card is spliced by two pieces of end fixture blocks, and the Mosaic face in the middle part of described end fixture block is provided with the recess matched with described insulator string termination external diameter; The middle part of described wing clamp is installed on described machete card, and the middle part of described two pieces of end fixture blocks is installed on described insulator string termination, and described wing clamp two ends are connected with described end card two ends respectively by tightening up screw mandrel described in one.
In such scheme, described wing clamp is provided with groove, and such design, under the prerequisite ensureing its intensity, has been saved raw-material consumption, and reduced the weight of instrument.
In such scheme, described end card is provided with groove, and such design, under the prerequisite ensureing its intensity, has been saved raw-material consumption, and reduced the weight of instrument.
One aspect of the present invention, two machete cards are coordinated to use together by two cover take-up mechanisms, can simply and easily by the load transfer on insulator string on this replacing instrument, thus make described insulator string be in relaxed state, so that the maintenance of described insulator string and replacing, the simple and safety easy to use of structure; On the other hand, by the pulling force transfer device added, the pulling force at insulator string link place is transferred on described pulling force transfer device, reduce the difficulty that described bolt is removed stage makeup and costume.
The present invention is compared with the prior art, and fully its superiority of display is: simple, safe, laborsaving and easy to use etc.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram after the present invention removes pulling force transfer device;
Fig. 2 is assembly structure schematic diagram of the present invention;
Fig. 3 is the stravismus structural representation of Fig. 2;
Fig. 4 is the structural representation of wing clamp in the present invention;
Fig. 5 is the side-looking structural representation of Fig. 4;
Fig. 6 is the structural representation of middle-end card of the present invention;
Fig. 7 is the side-looking structural representation of Fig. 6.
In figure: machete card 1, take-up mechanism 2, assembled hydraulic screw mandrel 2a, insulated tension pole 2b, pulling force transfer device 3, wing clamp 3a, bayonet socket 3a1, tightens up screw mandrel 3b, end card 3c, end fixture block 3c1, recess 3c2, insulator string 4, shading ring 4a, insulator string termination 4b, bolt 5, groove 6, duplex plate 7, core through screw rod 7a.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
The present embodiment provides a kind of extra high voltage line tetrad strain composite insulator string to change instrument, comprise two machete cards 1, the lower end of described two machete cards 1 is connected by take-up mechanism 2, described take-up mechanism 2 comprises assembled hydraulic screw mandrel 2a and insulated tension pole 2b, and described insulated tension pole 2b two ends are connected with the lower end of described two machete cards 1 respectively by a set of described assembled hydraulic screw mandrel 2a.Two machete cards 1 are coordinated to use together by two cover take-up mechanisms 2, can simply and easily by the load transfer on insulator string 4 on this replacing instrument, thus make described insulator string 4 be in relaxed state, and so that the maintenance of described insulator string 4 and replacing, the simple and safety easy to use of structure.
This replacing instrument also comprises the pulling force transfer device 3 for shifting tension force suffered by insulator string 4 link place bolt 5, described pulling force transfer device 3 comprises wing clamp 3a, tightens up screw mandrel 3b and end card 3c, described wing clamp 3a is installed on described machete card 1, described end card 3c is installed on the insulator string termination 4b of described insulator string 4, described in tighten up screw mandrel 3b two ends and block 3c with described wing clamp 3a be connected with holding respectively.Because the load on insulator string 4 is transferred, insulator string 4 is in relaxed state, and insulator string 4 is heavier, so the deadweight of insulator string 4 can produce pulling force to the bolt 5 at insulator string 4 link place, thus is unfavorable for removing stage makeup and costume of bolt 5; Described pulling force can be transferred on described pulling force transfer device 3 by the pulling force transfer device 3 added, thus reduces the difficulty that described bolt 5 removes stage makeup and costume.
The middle part of above-mentioned wing clamp 3a is provided with the bayonet socket 3a1 matched with described machete card 1, and described end card 3c is spliced by two pieces of end fixture block 3c1, and the Mosaic face in the middle part of described end fixture block 3c1 is provided with the recess 3c2 matched with described insulator string termination 4b external diameter; The middle part of described wing clamp 3a is installed on described machete card 1, and the middle part of described two pieces of end fixture block 3c1 is installed on described insulator string termination 4b, and described wing clamp 3a two ends are connected with described end card 3c two ends respectively by tightening up screw mandrel 3b described in one.Described wing clamp 3a is provided with groove 6, and such design, under the prerequisite ensureing its intensity, has been saved raw-material consumption, and reduced the weight of instrument.Described end card 3c is provided with groove 6, and such design, under the prerequisite ensureing its intensity, has been saved raw-material consumption, and reduced the weight of instrument.
The course of work of the present invention is as follows:
First, operating personnel is having a power failure or is entering setting safely under charged state, the upper end of two machete cards 1 is installed on the core through screw rod 7a place of the duplex plate 7 at insulator string 4 two ends by operating personnel respectively, described machete card 1 is fulcrum with the contact point of described duplex plate 7, is anti-stress point of restrainting with described core through screw rod 7a; Then, upload take-up mechanism 2, with described take-up mechanism 2, described two machete card 1 lower ends are connected, and operating described assembled hydraulic screw mandrel 2a, described assembled hydraulic screw mandrel 2a drives described machete card 1 stressed, and both sides are divided into actuation arm and motion arm with described fulcrum by machete card 1, actuation arm with described core through screw rod 7a for application point, anti-bundle wire tension, by the load transfer on insulator string 4 on this replacing instrument, thus makes insulator string 4 relax; Then, unload shading ring 4a, wing clamp 3a and end card 3c is clamped respectively and is installed on described machete card 1 and insulator string termination 4b, and the two ends of two being tightened up screw mandrel 3b are connected on described wing clamp 3a and end card 3c two ends; Again then, described in operation, tighten up screw mandrel 3b, tighten up the link of insulator string 4, take off bolt 5; Finally, remove pulling force transfer device 3, old insulator string 4 is put vertically again it to be deviate from completely, and the insulator string 4 that anti-work flow more renews.
The present invention coordinates two machete cards 1 to use together by two cover take-up mechanisms 2, can simply and easily by the load transfer on insulator string 4 on this replacing instrument, thus make described insulator string 4 be in relaxed state, so that the maintenance of described insulator string 4 and replacing, the simple and safety easy to use of structure; By the pulling force transfer device 3 added, the pulling force at insulator string 4 link place is transferred on described pulling force transfer device 3, reduce the difficulty that described bolt 5 is removed stage makeup and costume.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. an extra high voltage line tetrad strain composite insulator string changes instrument, comprise two machete cards (1), it is characterized in that: the lower end of described two machete cards (1) is connected by take-up mechanism (2), described take-up mechanism (2) comprises assembled hydraulic screw mandrel (2a) and insulated tension pole (2b), and described insulated tension pole (2b) two ends are connected with the lower end of described two machete cards (1) respectively by a set of described assembled hydraulic screw mandrel (2a); Also comprise the pulling force transfer device (3) for shifting the suffered tension force in insulator string (4) link place bolt (5), described pulling force transfer device (3) comprises wing clamp (3a), tightens up screw mandrel (3b) and end card (3c), described wing clamp (3a) is installed on described machete card (1), described end card (3c) is installed on the insulator string termination (4b) of described insulator string (4), described in tighten up screw mandrel (3b) two ends and block (3c) with described wing clamp (3a) be connected with holding respectively.
2. extra high voltage line tetrad strain composite insulator string as claimed in claim 1 changes instrument, it is characterized in that: the middle part of described wing clamp (3a) is provided with the bayonet socket (3a1) matched with described machete card (1), described end card (3c) is spliced by two pieces of ends fixture block (3c1), and the Mosaic face at described end fixture block (3c1) middle part is provided with the recess (3c2) matched with described insulator string termination (4b) external diameter; The middle part of described wing clamp (3a) is installed on described machete card (1), the middle part of described two pieces of ends fixture block (3c1) is installed on described insulator string termination (4b), and described wing clamp (3a) two ends are connected with described end card (3c) two ends respectively by tightening up screw mandrel (3b) described in one.
3. extra high voltage line tetrad strain composite insulator string as claimed in claim 1 or 2 changes instrument, it is characterized in that: described wing clamp (3a) is provided with groove (6).
4. extra high voltage line tetrad strain composite insulator string as claimed in claim 1 or 2 changes instrument, it is characterized in that: described end card (3c) is provided with groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555809.1A CN102983529B (en) | 2012-12-20 | 2012-12-20 | Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555809.1A CN102983529B (en) | 2012-12-20 | 2012-12-20 | Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102983529A CN102983529A (en) | 2013-03-20 |
| CN102983529B true CN102983529B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210555809.1A Active CN102983529B (en) | 2012-12-20 | 2012-12-20 | Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines |
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| CN (1) | CN102983529B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342553B (en) * | 2017-04-14 | 2022-12-02 | 国家电网公司 | Replacing fixture and replacing method for linear duplex V-string insulator |
| CN109556853B (en) * | 2019-01-25 | 2024-04-16 | 广东电网有限责任公司 | Clamp tensile test tool is changed to insulator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202550396U (en) * | 2012-02-28 | 2012-11-21 | 云南电网公司带电作业分公司 | Broadsword-shaped fixture for replacing V-shaped double-string insulator of compact 500kV power transmission line |
| CN202978118U (en) * | 2012-12-20 | 2013-06-05 | 湖北省电力公司检修分公司 | Quadruple strain composite insulator string replace tool of extra-high voltage circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5283716B2 (en) * | 2011-02-01 | 2013-09-04 | 中国電力株式会社 | Suspension device for power lines |
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2012
- 2012-12-20 CN CN201210555809.1A patent/CN102983529B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202550396U (en) * | 2012-02-28 | 2012-11-21 | 云南电网公司带电作业分公司 | Broadsword-shaped fixture for replacing V-shaped double-string insulator of compact 500kV power transmission line |
| CN202978118U (en) * | 2012-12-20 | 2013-06-05 | 湖北省电力公司检修分公司 | Quadruple strain composite insulator string replace tool of extra-high voltage circuit |
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| Publication number | Publication date |
|---|---|
| CN102983529A (en) | 2013-03-20 |
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| ASS | Succession or assignment of patent right |
Owner name: MAINTENANCE BRANCH OF HUBEI ELECTRIC POWER COMPANY Free format text: FORMER OWNER: STATE ELECTRIC NET CROP. Effective date: 20130805 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: MAINTENANCE BRANCH OF HUBEI ELECTRIC POWER COMPANY Effective date: 20130805 |
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Free format text: CORRECT: ADDRESS; FROM: 430050 WUHAN, HUBEI PROVINCE TO: 100031 XICHENG, BEIJING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20130805 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Maintenance Branch of Hubei Electric Power Company Address before: Hubei city in Wuhan province 430050 maintenance wulidun Hanyang district electric power company of Hubei Province Branch Applicant before: Maintenance Branch of Hubei Electric Power Company Applicant before: State Grid Corporation of China |
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| C14 | Grant of patent or utility model | ||
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