CN109149489B - Duplex double-hanging-point self-balancing suspension string for overhead transmission line - Google Patents
Duplex double-hanging-point self-balancing suspension string for overhead transmission line Download PDFInfo
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- CN109149489B CN109149489B CN201811132852.0A CN201811132852A CN109149489B CN 109149489 B CN109149489 B CN 109149489B CN 201811132852 A CN201811132852 A CN 201811132852A CN 109149489 B CN109149489 B CN 109149489B
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- suspension
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
Abstract
The invention discloses a duplex double-hanging-point self-balancing hanging string of an overhead transmission line, which comprises a double-hanging-point hanging string, wherein the double-hanging-point hanging string is provided with a first hanging string and a second hanging string; the upper end of the second suspension string is provided with a ball head suspension loop which is connected with a suspension plate, the suspension plate is connected to a second suspension point, the lower end of the second suspension string is connected with a socket head suspension plate, the socket head suspension plate is connected with a second yoke plate, and the second yoke plate is connected with a suspension wire clamp; the first yoke plate is connected with the second yoke plate through the third yoke plate. The invention can realize the load self-balance of the duplex double-hanging-point suspension string, thereby greatly improving the safety of the power transmission line in the mountainous area, avoiding the work of duplex string adjustment calculation and hardware fitting adjustment by designers and reducing the construction difficulty.
Description
Technical Field
The invention relates to the field of overhead power transmission, in particular to a duplex double-hanging-point self-balancing suspension string for an overhead power transmission line.
Background
At present, in the field of overhead power transmission at home and abroad, the condition that a mountain area continuously goes up and down a mountain is often encountered, a duplex double-hanging-point suspension string is sometimes needed, the existing duplex double-hanging-point suspension string is suspended forwards and backwards along a line direction, and because the vertical span of the front side and the rear side of a tower cannot be completely consistent, the front side vertical load is basically born by the front side suspension string and the rear side vertical span of the tower is basically born by the rear side suspension string due to the front-back suspension mode of the duplex double-hanging-point suspension string, the vertical load born by the two links of the existing duplex double-hanging-point suspension string is definitely inconsistent, and in a serious condition, the dangerous accident that one link of the suspension string is pressed upwards and the other link of the suspension string is pulled downwards to break and fall can occur; in actual engineering, in order to ensure that the two series strings bear balanced vertical load as much as possible, the lengths of the two series strings need to be adjusted respectively, actual design and construction are troublesome, and the effect is limited.
Disclosure of Invention
Aiming at the technical problem that the suspension string is broken and falls due to the fact that vertical loads borne by the duplex double-hanging-point duplex double-hanging string are inconsistent in the prior art, the invention provides the duplex double-hanging-point self-balancing suspension string for the overhead transmission line, and aims to realize the function of balancing the loads of the duplex double-hanging-point duplex double-hanging string without adjusting the duplex double-hanging-point suspension string.
The technical scheme of the invention is as follows: a duplex double-hanging-point self-balancing hanging string of an overhead transmission line comprises a double-hanging-point hanging string, wherein the double-hanging-point hanging string is provided with a first hanging string and a second hanging string, a ball head hanging ring is arranged at the upper end of the first hanging string and connected with a hanging plate, the hanging plate is connected to a first hanging point, the lower end of the first hanging string is connected with a socket head hanging plate, the socket head hanging plate is connected with a first connecting plate, and the first connecting plate is connected with a hanging wire clamp; the upper end of the second suspension string is provided with a ball head suspension loop which is connected with a suspension plate, the suspension plate is connected to a second suspension point, the lower end of the second suspension string is connected with a socket head suspension plate, the socket head suspension plate is connected with a second yoke plate, and the second yoke plate is connected with a suspension wire clamp; the first connecting plate is connected with the second connecting plate through the third connecting plate, the first connecting plate is hinged with the third connecting plate, and the second connecting plate is hinged with the third connecting plate.
Preferably, the first yoke plate and the second yoke plate are single-plate parallel yoke plates, and the third yoke plate is a double-plate parallel yoke plate.
Preferably, an aluminum wrapping tape is arranged on the line arranged on the suspension clamp.
Preferably, the first and second suspension strings are composite insulators.
The invention has the beneficial effects that: compared with the prior art, the technical scheme of the invention has reasonable design, the original duplex double-hanging-point suspension string is suspended forwards and backwards along the line direction, the suspension string is suspended leftwards and rightwards along the line direction, the original suspension string is connected with two parallel suspension clamps, the original suspension string is changed into a suspension string which is connected with only one suspension clamp, two split conductors are respectively and independently connected into the two suspension strings, the lower ends of the suspension strings are respectively provided with the first connecting plate and the second connecting plate, and the first connecting plate and the second connecting plate are connected through the third connecting plate, so that the two independent suspension strings can be mutually backed up, and when one suspension string is broken, the other suspension string can pull the broken suspension string to prevent the broken suspension string from falling.
The third link plate capable of rotating is arranged between the duplex suspension strings, and the two fixed hanging points of the duplex suspension strings are added, so that the whole suspension strings form a parallelogram which can incline along with the change of transverse load borne by the overhead transmission line, and the two suspension strings can always keep load balance because of no vertical connection.
When the length of the whole suspension string needs to be increased, a connecting hardware fitting can be added at the upper end of the suspension string, so that the length of the double suspension string is increased.
The invention solves the defect of unbalanced load of the duplex double-hanging-point suspension string in the prior engineering, and can realize the balanced load of the duplex double-hanging-point suspension string without adjusting the duplex double-hanging-point suspension string.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
In the drawing, 1 is a hanging plate, 2 is a ball head hanging ring, 3 is a first suspension string, 4 is a socket head hanging plate, 5 is a first link plate, 6 is a suspension wire clamp, 7 is an aluminum wrapping tape, 8 is a third link plate, 9 is a second suspension string, and 10 is a second link plate.
Detailed Description
The technical scheme of the invention is further described in detail by combining the following drawings.
As shown in fig. 1 and 2, a duplex double-hanging-point self-balancing hanging string for an overhead transmission line comprises a double-hanging-point hanging string, wherein the double-hanging-point hanging string is provided with a first hanging string 3 and a second hanging string 9, a ball head hanging ring 2 is arranged at the upper end of the first hanging string 3, the ball head hanging ring 2 is connected with a hanging plate 1, the hanging plate 1 is connected to a first hanging point, the lower end of the first hanging string 3 is connected with a socket hanging plate 4, the socket hanging plate 4 is connected with a first connecting plate 5, and the first connecting plate 5 is connected with a hanging wire clamp 6; the upper end of the second suspension string 9 is provided with a ball head hanging ring 2, the ball head hanging ring 2 is connected with a hanging plate 1, the hanging plate 1 is connected to a second hanging point, the lower end of the second suspension string 9 is connected with a socket head hanging plate 4, the socket head hanging plate 4 is connected with a second connecting plate 10, and the second connecting plate 10 is connected with a suspension wire clamp 6; the first yoke plate 5 is connected with the second yoke plate 10 through the third yoke plate 8, the first yoke plate 5 is hinged with the third yoke plate 8, and the second yoke plate 10 is hinged with the third yoke plate 8.
Further, the first yoke plate 5 and the second yoke plate 10 are single-plate parallel yoke plates, and the third yoke plate 8 is a double-plate parallel yoke plate.
Further, an aluminum armor tape 7 is arranged on the line arranged on the suspension clamp 6.
Further, the first and second suspension strings 3 and 9 are composite insulators.
The working mode of the invention is as follows: as shown in fig. 1 and 2, the duplex double-hanging-point suspension string is arranged to be hung left and right along a line, one suspension string is only connected with one suspension clamp 6, and two split conductors are respectively and independently connected into the two suspension strings; the lower ends of the suspension strings are respectively provided with a first connecting plate 5 and a second connecting plate 10, and the first connecting plate 5 and the second connecting plate 10 are connected through a third connecting plate 8, so that the two independent suspension strings can be used as backup for each other; because the first connecting plate 5 and the third connecting plate 8 are hinged, the second connecting plate 10 and the third connecting plate 8 are hinged, and two fixed hanging points of the duplex hanging string are added, the whole hanging string forms a parallelogram which can incline when the overhead transmission line bears the transverse load change, and the first hanging string 3 and the second hanging string 9 are not vertically connected, so that the two connecting strings can always keep the load balance.
Other techniques refer to the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical solution of the present invention, and it should be noted that those skilled in the art can make further modifications and changes without departing from the technical solution of the present invention, and these modifications and changes should be covered by the protection scope of the present invention.
Claims (2)
1. The utility model provides an overhead transmission line pair double-hanging point self-balancing cluster that dangles, includes the double-hanging point cluster that dangles, its characterized in that: the double-hanging-point suspension string is provided with a first suspension string and a second suspension string, a ball head suspension ring is arranged at the upper end of the first suspension string and is connected with a hanging plate, the hanging plate is connected to a first hanging point, the lower end of the first suspension string is connected with a socket head hanging plate, the socket head hanging plate is connected with a first connecting plate, and the first connecting plate is connected with a suspension wire clamp;
the upper end of the second suspension string is provided with a ball head suspension loop which is connected with a suspension plate, the suspension plate is connected to a second suspension point, the lower end of the second suspension string is connected with a socket head suspension plate, the socket head suspension plate is connected with a second yoke plate, and the second yoke plate is connected with a suspension wire clamp;
the first connecting plate is connected with the second connecting plate through a third connecting plate, the first connecting plate is hinged with the third connecting plate, and the second connecting plate is hinged with the third connecting plate;
the first yoke plate and the second yoke plate are single-plate parallel yoke plates, and the third yoke plate is a double-plate parallel yoke plate;
an aluminum armor tape is arranged on the circuit arranged on the suspension clamp;
the duplex double-hanging-point suspension strings are arranged to be hung left and right along a line, one suspension string is only connected with one suspension clamp (6), and two split conductors are respectively and independently connected into the two suspension strings; the lower ends of the suspension strings are respectively provided with a first yoke plate (5) and a second yoke plate (10), and the first yoke plate (5) and the second yoke plate (10) are connected through a third yoke plate (8), so that the two independent suspension strings can be used as backups of each other; because the first yoke plate (5) and the third yoke plate (8) are hinged, the second yoke plate (10) and the third yoke plate (8) are hinged, and the two fixed hanging points of the duplex hanging string are added, the whole hanging string forms a parallelogram which can incline when the overhead transmission line bears the transverse load change, and the first hanging string (3) and the second hanging string (9) are not vertically connected, so that the two strings can always keep the load balance.
2. The overhead transmission line duplex double-hanging-point self-balancing suspension string of claim 1, characterized in that: the first and second suspension strings are composite insulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132852.0A CN109149489B (en) | 2018-09-27 | 2018-09-27 | Duplex double-hanging-point self-balancing suspension string for overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132852.0A CN109149489B (en) | 2018-09-27 | 2018-09-27 | Duplex double-hanging-point self-balancing suspension string for overhead transmission line |
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| Publication Number | Publication Date |
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| CN109149489A CN109149489A (en) | 2019-01-04 |
| CN109149489B true CN109149489B (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811132852.0A Active CN109149489B (en) | 2018-09-27 | 2018-09-27 | Duplex double-hanging-point self-balancing suspension string for overhead transmission line |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421541A (en) * | 2020-09-27 | 2021-02-26 | 国网河南省电力公司信阳供电公司 | Fixing cover for double-wire clamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536323A (en) * | 1991-07-26 | 1993-02-12 | Tokyo Electric Power Co Inc:The | Parallel type lightning protective insulator |
| CN205429661U (en) * | 2016-03-26 | 2016-08-03 | 安徽瑞能电力工程设计有限公司 | Pair of anti mountain area discrepancy in elevation cluster that dangles |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202906332U (en) * | 2012-10-30 | 2013-04-24 | 常州苏文电能科技有限公司 | Ultrahigh-voltage line system |
| CN203983912U (en) * | 2014-07-24 | 2014-12-03 | 中国电力工程顾问集团西南电力设计院 | Two division strain insulator-strings for the above ultra-high-tension power transmission line of a kind of 500kV |
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2018
- 2018-09-27 CN CN201811132852.0A patent/CN109149489B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0536323A (en) * | 1991-07-26 | 1993-02-12 | Tokyo Electric Power Co Inc:The | Parallel type lightning protective insulator |
| CN205429661U (en) * | 2016-03-26 | 2016-08-03 | 安徽瑞能电力工程设计有限公司 | Pair of anti mountain area discrepancy in elevation cluster that dangles |
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| CN109149489A (en) | 2019-01-04 |
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