CN112435815A - High-strength suspension insulator for ultra-high voltage transmission line - Google Patents
High-strength suspension insulator for ultra-high voltage transmission line Download PDFInfo
- Publication number
- CN112435815A CN112435815A CN202011279666.7A CN202011279666A CN112435815A CN 112435815 A CN112435815 A CN 112435815A CN 202011279666 A CN202011279666 A CN 202011279666A CN 112435815 A CN112435815 A CN 112435815A
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- spring
- insulating shell
- hardware fitting
- correspondingly
- outer insulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/54—Insulators or insulating bodies characterised by their form having heating or cooling devices
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Abstract
The invention discloses a high-strength suspension insulator for an extra-high voltage transmission line, which comprises an outer insulating shell, wherein a fixed upper hardware fitting is correspondingly installed inside the upper end of the outer insulating shell, and an integrated steel cap structure is correspondingly arranged at the upper end of the outer insulating shell; and a lower hardware fitting is correspondingly installed in the lower end of the outer insulating shell, and a connecting ball head is correspondingly installed at the lower end of the outer insulating shell. The suspension insulator in the device is of a high-strength and buffer-type combined insulator structure, a plurality of insulating core rods between an upper hardware fitting and a lower hardware fitting increase the strength and disperse the stress by increasing gaps; and set up the spring groove on the spring part of installation on the insulating plug and the insulating casing, correspond the spring part installation buffering, overall structure is more reasonable, and intensity is higher.
Description
Technical Field
The invention relates to the field of insulator equipment in an electric power system, in particular to a high-strength suspension insulator for an extra-high voltage transmission line.
Background
In the prior art, in order to increase the strength of a ceramic member used for an insulator, which is required to ensure the mechanical strength, the raw material and the mechanical strength of the insulator need to be designed, and the design of the mechanical strength is generally performed by designing a beam from the characteristics of an insulator element, including the electrical characteristics, the mechanical characteristics, the aging characteristics, and the like, and it is important to use a high-strength insulator in the operation of a high-voltage power transmission line.
In the prior art, an insulator is a necessary installation part of a high-voltage transmission line and is widely applied to an electronic system, and the existing insulator structure comprises an internal core rod, an external umbrella skirt and necessary connection parts at two ends; the insulator is usually used with two functions, on one hand, the distance between the outer umbrella skirts is used for realizing the creepage phenomenon of the high-voltage wire; the inner core rod is used for supporting and fixing the high-voltage wire, so that the power transmission line is effectively overhead; in the ultra-high voltage transmission line in the prior art, because the ultra-high voltage transmission line is in a high-voltage state, a high-strength insulator is required to support an overhead line, a core rod in the existing insulator is usually provided with an integral whole core rod, and an umbrella skirt structure is directly connected and arranged on the core rod, so that on one hand, the core rod is integrally arranged, and the toughness and the strength are insufficient; on the other hand, the core rod and the umbrella skirt on the outer side are integrally arranged, no gap exists in the core rod, and heat generated by the high-voltage transmission line cannot be effectively dissipated, so that the high-voltage line is not stable enough to be installed.
Disclosure of Invention
The invention aims to provide a high-strength suspension insulator for an extra-high voltage transmission line aiming at the defects in the prior art.
The technical scheme is as follows: the technical scheme adopted by the invention for solving the problems is as follows: a high-strength suspension insulator for an extra-high voltage transmission line comprises an outer insulating shell, wherein a fixed upper hardware fitting is correspondingly installed inside the upper end of the outer insulating shell, and an integrated steel cap structure is correspondingly arranged at the upper end of the outer insulating shell; a lower hardware fitting is correspondingly installed inside the lower end of the outer insulating shell, and a connecting ball head is correspondingly installed at the lower end of the outer insulating shell; a plurality of insulation core rods are correspondingly arranged between the upper hardware fitting and the lower hardware fitting in the outer insulation shell; the insulation core rods are uniformly distributed between the upper hardware fitting and the lower hardware fitting; umbrella skirt reinforcing ribs with uniform intervals are correspondingly arranged on the outer insulating shell from top to bottom, and umbrella skirts are correspondingly arranged outside the umbrella skirt reinforcing ribs; the inner wall of the outer insulating shell is also provided with a plurality of spring grooves which transversely extend outwards, the arrangement positions of the spring grooves correspond to the arrangement positions of the umbrella skirt reinforcing ribs, the spring grooves transversely extend outwards from the inner side wall of the outer insulating shell into the umbrella skirt reinforcing ribs, and the insulating core rod is correspondingly provided with a transversely extending spring pressure rod; the arrangement position of the spring compression bar corresponds to the arrangement position of the spring groove, the spring compression bar on the insulating core rod is correspondingly inserted into the spring groove, a stabilizing spring is also correspondingly arranged in the spring groove, and the inserted spring compression bar correspondingly compresses the stabilizing spring.
Preferably, an insulating rope is correspondingly arranged between the upper hardware fitting and the lower hardware fitting in the insulating shell; the insulating rope is arranged at the central positions of the upper hardware fitting and the lower hardware fitting.
Preferably, the number of the insulation core rods between the upper hardware fitting and the lower hardware fitting in the outer insulation shell is three, the three insulation core rods are uniformly arranged in an annular interval, and each insulation core rod is correspondingly provided with a spring pressing rod arranged from top to bottom.
Preferably, the outer insulating shell is at least provided with four groups of umbrella skirt reinforcing ribs and four groups of umbrella skirts; and the number and the positions of the spring compression bars on each insulating core rod are correspondingly arranged.
Preferably, the steel cap structure at the upper end of the insulating shell is provided with a mounting groove.
Has the advantages that: compared with the prior art, the invention has the following advantages:
(1) the suspension insulator in the device is of a high-strength and buffer-type combined insulator structure, a plurality of insulating core rods between an upper hardware fitting and a lower hardware fitting increase the strength and disperse the stress by increasing gaps; the spring piece arranged on the insulating core rod and the insulating shell are provided with the spring grooves, and the spring grooves are arranged corresponding to the spring piece for buffering, so that the whole structure is more reasonable, and the strength is higher;
(2) in the device, three insulating core rods are arranged between an upper hardware fitting and a lower hardware fitting, the upper hardware fitting and the lower hardware fitting are arranged at the upper end and the lower end of an outer insulating shell, the insulating core rods and the outer insulating shell are not of an integrated structure, and an umbrella skirt is correspondingly arranged on the outer side of the outer insulating shell through reinforcing ribs; the overall structural strength is increased; the insulating core rod and the outer insulating shell on the outer side of the device are not integrated, a gap is arranged between the insulating core rod and the outer insulating shell, and after a high-voltage line is supported and fixed, heat generated by the high-voltage line is easy to dissipate, so that the service life is prolonged;
(3) the device is also provided with a spring groove and a spring rod, and a stable spring is arranged in the spring groove; after the internal insulating core rod is installed, the spring rod which transversely extends out is correspondingly installed in the spring groove and is correspondingly pressed on the stabilizing spring, so that the insulating core rod has certain buffering capacity, the impact brought by the environment is reduced, and the rigid friction between the insulating core rod and the external insulating shell is reduced while the connection relation between the insulating core rod and the external insulating shell is increased; the stability of the whole structure is higher; and the spring groove just in time sets up the position department at the full skirt strengthening rib of outer insulation casing in this device, and the space that sets up of spring groove is bigger, and damage to outer insulation casing is littleer, and overall structure is more stable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view taken along line a-a of fig. 1.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, a high-strength suspension insulator for an extra-high voltage transmission line comprises an outer insulating shell 1, wherein a fixed upper hardware fitting 2 is correspondingly installed inside the upper end of the outer insulating shell 1, and an integrated steel cap structure 3 is correspondingly arranged at the upper end of the outer insulating shell 1; a lower hardware fitting 4 is correspondingly installed inside the lower end of the outer insulating shell 1, and a connecting ball head 5 is correspondingly installed at the lower end of the outer insulating shell 1; a plurality of insulation core rods 6 are correspondingly arranged between the upper hardware fitting 2 and the lower hardware fitting 4 in the outer insulation shell 1; the insulating core rods 6 are uniformly distributed between the upper hardware fittings 2 and the lower hardware fittings 4; umbrella skirt reinforcing ribs 7 with uniform intervals from top to bottom are correspondingly arranged on the outer insulating shell 1, and umbrella skirts 8 are correspondingly arranged outside the umbrella skirt reinforcing ribs 7; a plurality of spring grooves 9 which transversely extend outwards are further formed in the inner wall of the outer insulating shell 1, the arrangement positions of the spring grooves 9 correspond to the arrangement positions of the umbrella skirt reinforcing ribs 7, the spring grooves 9 transversely extend outwards from the inner side wall of the outer insulating shell 1 into the umbrella skirt reinforcing ribs 7, and the insulating core rod 6 is correspondingly provided with a transversely extending spring pressing rod 10; the arrangement position of the spring compression bar 10 corresponds to the arrangement position of the spring groove 9, the spring compression bar 10 on the insulating core rod 6 is correspondingly inserted into the spring groove 9, the spring groove 9 is also correspondingly provided with a stabilizing spring 11, and the inserted spring compression bar 10 correspondingly compresses the stabilizing spring 11.
An insulating rope 12 is correspondingly arranged between the upper hardware fitting 2 and the lower hardware fitting 4 in the insulating shell; the insulating rope 12 is installed at the center of the upper and lower fittings 4; the number of the insulation core rods 6 between the upper hardware fitting 2 and the lower hardware fitting 4 in the outer insulation shell 1 is three, the three insulation core rods 6 are uniformly arranged at annular intervals, and each insulation core rod 6 is correspondingly provided with a spring pressing rod 10 arranged from top to bottom.
The outer insulating shell 1 is at least provided with four groups of umbrella skirt reinforcing ribs 7 and four groups of umbrella skirts 8; the number and the position of the spring compression bars 10 on each insulating core rod 6 are correspondingly arranged; the steel cap structure 3 at the upper end of the insulating shell is provided with a mounting groove 13.
The suspension insulator in the device is of a high-strength and buffer-type combined insulator structure, a plurality of insulating core rods between an upper hardware fitting and a lower hardware fitting increase the strength and disperse the stress by increasing gaps; and set up the spring groove on the spring part of installation on the insulating plug and the insulating casing, correspond the spring part installation buffering, overall structure is more reasonable, and intensity is higher.
In the device, three insulating core rods are arranged between an upper hardware fitting and a lower hardware fitting, the upper hardware fitting and the lower hardware fitting are arranged at the upper end and the lower end of an outer insulating shell, the insulating core rods and the outer insulating shell are not of an integrated structure, and an umbrella skirt is correspondingly arranged on the outer side of the outer insulating shell through reinforcing ribs; the overall structural strength is increased; the insulating core rod in the device and the outer insulating shell on the outer side are not integrated, a gap is arranged between the insulating core rod and the outer insulating shell, after the high-voltage line is supported and fixed, heat generated by the high-voltage line is easy to dissipate, and the service life is prolonged.
The device is also provided with a spring groove and a spring rod, and a stable spring is arranged in the spring groove; after the internal insulating core rod is installed, the spring rod which transversely extends out is correspondingly installed in the spring groove and is correspondingly pressed on the stabilizing spring, so that the insulating core rod has certain buffering capacity, the impact brought by the environment is reduced, and the rigid friction between the insulating core rod and the external insulating shell is reduced while the connection relation between the insulating core rod and the external insulating shell is increased; the stability of the whole structure is higher; and the spring groove just in time sets up the position department at the full skirt strengthening rib of outer insulation casing in this device, and the space that sets up of spring groove is bigger, and damage to outer insulation casing is littleer, and overall structure is more stable.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the invention and the appended claims, and all equivalent changes and modifications made within the spirit and scope of the invention as claimed should be included in the appended claims.
Claims (5)
1. The utility model provides a high strength suspension insulator for extra-high voltage transmission line which characterized in that: the metal fitting comprises an outer insulating shell (1), wherein a fixed upper metal fitting (2) is correspondingly installed inside the upper end of the outer insulating shell (1), and an integrated steel cap structure (3) is correspondingly arranged at the upper end of the outer insulating shell (1); a lower hardware fitting (4) is correspondingly installed inside the lower end of the outer insulating shell (1), and a connecting ball head (5) is correspondingly installed at the lower end of the outer insulating shell (1); a plurality of insulation core rods (6) are correspondingly arranged between the upper hardware fitting (2) and the lower hardware fitting (4) in the outer insulation shell (1); the insulation core rods (6) are uniformly distributed between the upper hardware fitting (2) and the lower hardware fitting (4); umbrella skirt reinforcing ribs (7) which are uniformly spaced from top to bottom are correspondingly arranged on the outer insulating shell (1), and umbrella skirts (8) are correspondingly arranged outside the umbrella skirt reinforcing ribs (7); a plurality of spring grooves (9) which transversely extend outwards are further formed in the inner wall of the outer insulating shell (1), the arrangement positions of the spring grooves (9) correspond to the arrangement positions of the umbrella skirt reinforcing ribs (7), the spring grooves (9) transversely extend outwards from the inner side wall of the outer insulating shell (1) into the umbrella skirt reinforcing ribs (7), and spring pressing rods (10) which transversely extend out are correspondingly mounted on the insulating core rod (6); the arrangement position of the spring compression rod (10) corresponds to the arrangement position of the spring groove (9), the spring compression rod (10) on the insulating core rod (6) is correspondingly inserted into the spring groove (9), a stabilizing spring (11) is correspondingly arranged in the spring groove (9), and the inserted spring compression rod (10) correspondingly compresses the stabilizing spring (11).
2. The high-strength suspension insulator for the extra-high voltage transmission line according to claim 1, wherein: an insulating rope (12) is correspondingly arranged between the upper hardware fitting (2) and the lower hardware fitting (4) in the insulating shell; the insulating rope (12) is arranged at the central position of the upper and lower fittings (4).
3. The high-strength suspension insulator for the extra-high voltage transmission line according to claim 2, wherein: the insulation core rod (6) between the upper hardware fitting (2) and the lower hardware fitting (4) in the outer insulation shell (1) are three in number, the three insulation core rods (6) are uniformly arranged at annular intervals, and spring pressing rods (10) arranged from top to bottom are correspondingly arranged on each insulation core rod (6).
4. The high-strength suspension insulator for the extra-high voltage transmission line according to claim 3, wherein: the outer insulating shell (1) is at least provided with four groups of umbrella skirt reinforcing ribs (7) and four groups of umbrella skirts (8); and the number and the positions of the spring pressure rods (10) on each insulating core rod (6) are correspondingly arranged.
5. The high-strength suspension insulator for the extra-high voltage transmission line according to claim 1, wherein: and a steel cap structure (3) at the upper end of the insulating shell is provided with a mounting groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279666.7A CN112435815B (en) | 2020-11-16 | 2020-11-16 | High-strength suspension insulator for ultra-high voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279666.7A CN112435815B (en) | 2020-11-16 | 2020-11-16 | High-strength suspension insulator for ultra-high voltage transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112435815A true CN112435815A (en) | 2021-03-02 |
| CN112435815B CN112435815B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011279666.7A Active CN112435815B (en) | 2020-11-16 | 2020-11-16 | High-strength suspension insulator for ultra-high voltage transmission line |
Country Status (1)
| Country | Link |
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| CN (1) | CN112435815B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093583A (en) * | 2021-11-24 | 2022-02-25 | 江西誉鹏电气集团有限公司 | High-toughness conical suspension type porcelain insulator |
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| GB372571A (en) * | 1931-05-27 | 1932-05-12 | Ohio Brass Co | Improvements relating to electric insulators |
| GB1104286A (en) * | 1964-12-15 | 1968-02-21 | Micanite And Insulators Compan | Improvements in and relating to electrical terminals |
| CN1674165A (en) * | 2005-04-15 | 2005-09-28 | 武汉市德赛电力设备有限公司 | Composite hollow line suspension insulator |
| CN202662407U (en) * | 2012-05-15 | 2013-01-09 | 浙江省江山江汇电气有限公司 | Post insulator structure |
| CN203406102U (en) * | 2013-06-14 | 2014-01-22 | 江苏神马电力股份有限公司 | Insulator core rod and insulator with same |
| CN103985486A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Extra-high voltage composite insulator |
| CN204904949U (en) * | 2015-08-19 | 2015-12-23 | 胡庆营 | Lightnig protector |
| CN204991301U (en) * | 2015-07-24 | 2016-01-20 | 西安高强绝缘电气有限责任公司 | Modular plug |
| CN205723016U (en) * | 2016-04-20 | 2016-11-23 | 泰科电子(上海)有限公司 | Insulator |
| CN207021047U (en) * | 2017-07-11 | 2018-02-16 | 刘进生 | Porcelain bottle insulators with safety guard and internal lightning arrester |
| CN207441362U (en) * | 2017-11-09 | 2018-06-01 | 湖南特诚成套电器有限公司 | A kind of disconnecting switch support insulator |
| CN207517449U (en) * | 2017-12-05 | 2018-06-19 | 江西省星海电瓷制造有限公司 | A kind of high tenacity high voltage suspended insulator |
| CN207529728U (en) * | 2017-10-26 | 2018-06-22 | 江苏神马电力股份有限公司 | A kind of insulation mandrel |
| CN209312503U (en) * | 2019-01-29 | 2019-08-27 | 江西省萍乡市南坑高压电瓷厂 | A kind of adjustable pillar insulator |
| CN209561103U (en) * | 2019-04-24 | 2019-10-29 | 江西国宣广电科技有限公司 | A kind of broadcasting equipment insulator |
-
2020
- 2020-11-16 CN CN202011279666.7A patent/CN112435815B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB372571A (en) * | 1931-05-27 | 1932-05-12 | Ohio Brass Co | Improvements relating to electric insulators |
| GB1104286A (en) * | 1964-12-15 | 1968-02-21 | Micanite And Insulators Compan | Improvements in and relating to electrical terminals |
| CN1674165A (en) * | 2005-04-15 | 2005-09-28 | 武汉市德赛电力设备有限公司 | Composite hollow line suspension insulator |
| CN202662407U (en) * | 2012-05-15 | 2013-01-09 | 浙江省江山江汇电气有限公司 | Post insulator structure |
| CN203406102U (en) * | 2013-06-14 | 2014-01-22 | 江苏神马电力股份有限公司 | Insulator core rod and insulator with same |
| CN103985486A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Extra-high voltage composite insulator |
| CN204991301U (en) * | 2015-07-24 | 2016-01-20 | 西安高强绝缘电气有限责任公司 | Modular plug |
| CN204904949U (en) * | 2015-08-19 | 2015-12-23 | 胡庆营 | Lightnig protector |
| CN205723016U (en) * | 2016-04-20 | 2016-11-23 | 泰科电子(上海)有限公司 | Insulator |
| CN207021047U (en) * | 2017-07-11 | 2018-02-16 | 刘进生 | Porcelain bottle insulators with safety guard and internal lightning arrester |
| CN207529728U (en) * | 2017-10-26 | 2018-06-22 | 江苏神马电力股份有限公司 | A kind of insulation mandrel |
| CN207441362U (en) * | 2017-11-09 | 2018-06-01 | 湖南特诚成套电器有限公司 | A kind of disconnecting switch support insulator |
| CN207517449U (en) * | 2017-12-05 | 2018-06-19 | 江西省星海电瓷制造有限公司 | A kind of high tenacity high voltage suspended insulator |
| CN209312503U (en) * | 2019-01-29 | 2019-08-27 | 江西省萍乡市南坑高压电瓷厂 | A kind of adjustable pillar insulator |
| CN209561103U (en) * | 2019-04-24 | 2019-10-29 | 江西国宣广电科技有限公司 | A kind of broadcasting equipment insulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114093583A (en) * | 2021-11-24 | 2022-02-25 | 江西誉鹏电气集团有限公司 | High-toughness conical suspension type porcelain insulator |
| CN114093583B (en) * | 2021-11-24 | 2023-12-26 | 江西誉鹏电气集团有限公司 | High-toughness conical suspension porcelain insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112435815B (en) | 2022-06-21 |
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Inventor after: Yang Shengzhe Inventor after: Hu Qinran Inventor after: Gao Liling Inventor after: Liu Shaohua Inventor after: Xu Xiujuan Inventor before: Hu Qinran Inventor before: Yang Shengzhe Inventor before: Gao Liling Inventor before: Liu Shaohua Inventor before: Xu Xiujuan |
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