CN102983529A - 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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- CN102983529A CN102983529A CN2012105558091A CN201210555809A CN102983529A CN 102983529 A CN102983529 A CN 102983529A CN 2012105558091 A CN2012105558091 A CN 2012105558091A CN 201210555809 A CN201210555809 A CN 201210555809A CN 102983529 A CN102983529 A CN 102983529A
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- insulator string
- high voltage
- card
- machete
- wing clamp
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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 proposed, along with the develop rapidly of power industry, ultrahigh voltage alternating current transmission lines began to adopt the technology of tetrad Anti-tension composite insulator operation.But because the transmission line equipment of hanging 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 the circuit, and in Maintenance and Repair equipment and live line working process, must lay down first this load, the high-altitude manpower operation during again owing to Maintenance and Repair equipment and live line working, and transmission line band ultra high voltage electric current, therefore existing transmission facility and maintenance utensil all can not satisfy ultra-high voltage AC transmission hotline maintenance needs.Thereby developing corresponding Maintenance and Repair equipment and live line working special tool utensil becomes the importance that guarantees the ultrahigh voltage alternating current transmission lines safe and stable operation.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of above-mentioned background technology, provide 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 purpose, a kind of extra high voltage line tetrad strain composite insulator string provided by the invention is changed instrument, comprise two machete cards, the lower end of described two machete cards links to each other by take-up mechanism, described take-up mechanism comprises assembled hydraulic screw mandrel and insulated tension pole, and described insulated tension pole two ends link to each other with the lower end of described two machete cards by the described assembled hydraulic screw mandrel of a cover respectively.Cooperate two machete cards to use together by two cover take-up mechanisms, can be simply and easily with the load transfer on the insulator string to this replacing instrument, thereby make described insulator string be in relaxed state, so as the maintenance of described insulator string and replacing, safety simple in structure and easy to use.
This replacing instrument also comprises for the pulling force transfer device that shifts the suffered tension force of insulator string link place's bolt, described pulling force transfer device comprises wing clamp, tightens up screw mandrel and end card, described wing clamp is installed on the described machete card, described end card is installed on the insulator string termination of described insulator string, and the described screw mandrel two ends of tightening up link to each other with the end card with described wing clamp respectively.Because the load on the insulator string is transferred, insulator string is in relaxed state, and insulator string is heavier, so the deadweight meeting of insulator string produces pulling force to the bolt at insulator string link place, thereby is unfavorable for removing stage makeup and costume of bolt; The pulling force transfer device that adds can be transferred to described pulling force on the described pulling force transfer device, thereby has reduced the difficulty that described bolt is removed stage makeup and costume.
In such scheme, the middle part of described wing clamp is provided with the bayonet socket that matches with described machete card, and described end card is spliced by two end fixture blocks, and the Mosaic face at described end fixture block middle part is provided with the recess that matches with described insulator string termination external diameter; The middle part of described wing clamp is installed on the described machete card, and the middle part of described two end fixture blocks is installed on the described insulator string termination, and described wing clamp two ends link to each other with described end card two ends by a described screw mandrel that tightens up respectively.
In such scheme, described wing clamp is provided with groove, and such design has been saved raw-material consumption, and reduced the weight of instrument under the prerequisite that guarantees its intensity.
In such scheme, described end card is provided with groove, and such design has been saved raw-material consumption, and reduced the weight of instrument under the prerequisite that guarantees its intensity.
One aspect of the present invention, cooperate two machete cards to use together by two cover take-up mechanisms, can be simply and easily with the load transfer on the insulator string to this replacing instrument, thereby make described insulator string be in relaxed state, so that the maintenance of described insulator string and replacing, safety simple in structure and easy to use; On the other hand, by the pulling force transfer device that adds the pulling force at insulator string link place is transferred on the described pulling force transfer device, reduced the difficulty that described bolt is removed stage makeup and costume.
The present invention is compared with the prior art, and shows that fully its superiority is: simple, safe, laborsaving and easy to use etc.
Description of drawings
Fig. 1 is the assembly structure schematic diagram after the present invention removes the 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 among 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.
Among the 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
The present invention is described in further detail below in conjunction with drawings and Examples, but this embodiment should not be construed as limitation of the present invention.
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 links to each other 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 link to each other with the lower end of described two machete cards 1 by the described assembled hydraulic screw mandrel 2a of a cover respectively.Cooperate two machete cards 1 to use together by two cover take-up mechanisms 2, can be simply and easily with the load transfer on the insulator string 4 to this replacing instrument, thereby make described insulator string 4 be in relaxed state, so as the maintenance of described insulator string 4 and replacing, safety simple in structure and easy to use.
This replacing instrument also comprises for the pulling force transfer device 3 that shifts insulator string 4 link place bolt 5 suffered tension force, 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 the described machete card 1, described end card 3c is installed on the insulator string termination 4b of described insulator string 4, and the described screw mandrel 3b two ends of tightening up link to each other with end card 3c with described wing clamp 3a respectively.Because the load on the insulator string 4 is transferred, insulator string 4 is in relaxed state, and insulator string 4 is heavier, so the deadweight meeting of insulator string 4 produces pulling force to the bolt 5 at insulator string 4 link places, thereby is unfavorable for removing stage makeup and costume of bolt 5; The pulling force transfer device 3 that adds can be transferred to described pulling force on the described pulling force transfer device 3, thereby has reduced the difficulty that described bolt 5 is removed stage makeup and costume.
The middle part of above-mentioned wing clamp 3a is provided with the bayonet socket 3a1 that matches with described machete card 1, and described end card 3c is spliced by two end fixture block 3c1, and the Mosaic face at described end fixture block 3c1 middle part is provided with the recess 3c2 that matches with described insulator string termination 4b external diameter; The middle part of described wing clamp 3a is installed on the described machete card 1, and the middle part of described two end fixture block 3c1 is installed on the described insulator string termination 4b, and described wing clamp 3a two ends link to each other with described end card 3c two ends by a described screw mandrel 3b that tightens up respectively.Described wing clamp 3a is provided with groove 6, and such design has been saved raw-material consumption, and reduced the weight of instrument under the prerequisite that guarantees its intensity.Described end card 3c is provided with groove 6, and such design has been saved raw-material consumption, and reduced the weight of instrument under the prerequisite that guarantees its intensity.
The course of work of the present invention is as follows:
At first, the operating personnel have a power failure or charged state under safety enter setting, the operating personnel is installed on the upper end of two machete cards 1 respectively the core through screw rod 7a place of the duplex plate 7 at insulator string 4 two ends, described machete card 1 is fulcrum with the contact point of described duplex plate 7, take described core through screw rod 7a as anti-bundle stress point; Then, upload take-up mechanism 2, with described take-up mechanism 2 described two machete card 1 lower ends are linked to each other, and operate described assembled hydraulic screw mandrel 2a, and it is stressed that described assembled hydraulic screw mandrel 2a drives described machete card 1, and machete card 1 is divided into actuation arm and motion arm with described the both sides of naming a person for a particular job, actuation arm is take described core through screw rod 7a as application point, anti-bundle wire tension, with the load transfer on the insulator string 4 to this replacing instrument, thereby make insulator string 4 lax; Then, unload shading ring 4a, wing clamp 3a and end card 3c are clamped respectively and are installed on described machete card 1 and the insulator string termination 4b, and two two ends of tightening up screw mandrel 3b are connected on described wing clamp 3a and the end card 3c two ends; Follow again, operate the described screw mandrel 3b that tightens up, tighten up the link of insulator string 4, take off bolt 5; At last, remove pulling force transfer device 3, old insulator string 4 is put it to be deviate from fully after vertical, and the insulator string 4 that anti-work flow more renews gets final product again.
The present invention cooperates two machete cards 1 to use together by two cover take-up mechanisms 2, can be simply and easily with the load transfer on the insulator string 4 to this replacing instrument, thereby make described insulator string 4 be in relaxed state, so that the maintenance of described insulator string 4 and replacing, safety simple in structure and easy to use; By the pulling force transfer device 3 that adds the pulling force at insulator string 4 link places is transferred on the described pulling force transfer device 3, reduced the difficulty that described bolt 5 is removed stage makeup and costume.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an extra high voltage line tetrad strain composite insulator string is changed instrument, comprise two machete cards (1), it is characterized in that: the lower end of described two machete cards (1) links to each other 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 link to each other with the lower end of described two machete cards (1) by a described assembled hydraulic screw mandrel of cover (2a) respectively.
2. extra high voltage line tetrad strain composite insulator string as claimed in claim 1 is changed instrument, it is characterized in that: also comprise for the pulling force transfer device (3) that shifts the suffered tension force of insulator string (4) link place bolt (5), described pulling force transfer device (3) comprises wing clamp (3a), tighten up screw mandrel (3b) and end card (3c), described wing clamp (3a) is installed on the described machete card (1), described end card (3c) is installed on the insulator string termination (4b) of described insulator string (4), and described screw mandrel (3b) two ends of tightening up link to each other with end card (3c) with described wing clamp (3a) respectively.
3. extra high voltage line tetrad strain composite insulator string as claimed in claim 2 is changed instrument, it is characterized in that: the middle part of described wing clamp (3a) is provided with the bayonet socket (3a1) that matches with described machete card (1), described end card (3c) is spliced by two end fixture blocks (3c1), and the Mosaic face at described end fixture block (3c1) middle part is provided with the recess (3c2) that matches with described insulator string termination (4b) external diameter; The middle part of described wing clamp (3a) is installed on the described machete card (1), the middle part of described two end fixture blocks (3c1) is installed on the described insulator string termination (4b), and described wing clamp (3a) two ends link to each other with described end card (3c) two ends by a described screw mandrel (3b) that tightens up respectively.
4. extra high voltage line tetrad strain composite insulator string is changed instrument as claimed in claim 2 or claim 3, and it is characterized in that: described wing clamp (3a) is provided with groove (6).
5. extra high voltage line tetrad strain composite insulator string is changed instrument as claimed in claim 2 or claim 3, and 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 true CN102983529A (en) | 2013-03-20 |
| CN102983529B CN102983529B (en) | 2015-04-08 |
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Family Applications (1)
| 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342553A (en) * | 2017-04-14 | 2017-11-10 | 国家电网公司 | A kind of the replacing fixture and replacing options of straight line duplex V insulator strings |
| CN109556853A (en) * | 2019-01-25 | 2019-04-02 | 广东电网有限责任公司 | A kind of insulator replacement fixture tension test tool |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012161174A (en) * | 2011-02-01 | 2012-08-23 | Chugoku Electric Power Co Inc:The | Power line suspension device insulator chain lifting device |
| 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 |
-
2012
- 2012-12-20 CN CN201210555809.1A patent/CN102983529B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012161174A (en) * | 2011-02-01 | 2012-08-23 | Chugoku Electric Power Co Inc:The | Power line suspension device insulator chain lifting device |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342553A (en) * | 2017-04-14 | 2017-11-10 | 国家电网公司 | A kind of the replacing fixture and replacing options of straight line duplex V insulator strings |
| 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 |
| CN109556853A (en) * | 2019-01-25 | 2019-04-02 | 广东电网有限责任公司 | A kind of insulator replacement fixture tension test tool |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102983529B (en) | 2015-04-08 |
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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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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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