CN102097189B - Four-link tension string for +/-800KV heavy ice area - Google Patents

Four-link tension string for +/-800KV heavy ice area Download PDF

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Publication number
CN102097189B
CN102097189B CN 201110047986 CN201110047986A CN102097189B CN 102097189 B CN102097189 B CN 102097189B CN 201110047986 CN201110047986 CN 201110047986 CN 201110047986 A CN201110047986 A CN 201110047986A CN 102097189 B CN102097189 B CN 102097189B
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China
Prior art keywords
plate
yoke
yoke plate
endless tube
link
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CN 201110047986
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CN102097189A (en
Inventor
李澄宇
李力
周唯
梁明
尚涛
曹惠潮
任成林
舒礼臣
吉青
秦虹
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CHENGDU ELECTRIC POWER FITTINGS GENERAL FACTORY
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Super High Transmission Co of China South Electric Net Co Ltd
Original Assignee
CHENGDU ELECTRIC POWER FITTINGS GENERAL FACTORY
Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group
Super High Transmission Co of China South Electric Net Co Ltd
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Priority to CN 201110047986 priority Critical patent/CN102097189B/en
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Abstract

The invention provides a four-link tension string for a +/-800KV heavy ice area, belonging to fitting strings for construction of transmission lines. The four-link tension string comprises two hanging point fittings connected with a tower, wherein after being connected with the same fitting, each hanging point fitting is connected at the left end of a first yoke plate by a bolt; the right end of the first yoke plate is connected with two insulators by a ball head hanging ring; two of the four insulators are connected on a second yoke plate and the other two insulators are connected on the other second yoke plate; the two second yoke plates are respectively connected with a combined yoke plate by a right-angle hung plate; an equalizing ring is arranged on two insulators; the equalizing ring is in open type or two-leg split type; the combined yoke plate is formed by connecting a two-variable four-link plate, two right-angle hung plates and two one-variable two-link plates by bolts; and two shielding rings are fixed at the upper and lower ends of the two-variable four-link plate by brackets. The four-link tension string has the characteristics of convenience for installation of the equalizing ring, stable structure and high strength.

Description

± 800KV heavy icing area tetrad strain insulator-string
Technical field
The present invention relates to transmission line and set up and use the insulator string gold utensil, especially for the tetrad strain insulator-string gold utensil of heavy icing area ± 800KV transmission line.
Background technology
Because bigger at the ice load of heavy icing area overhead transmission line, the structural stability of existing tetrad strain insulator-string is poor, and Intensity Design can not meet the demands; Secondly, because the couplet spacing of existing tetrad strain insulator-string strengthens, the grading ring of conjuncted design and shading ring are not easy to install; Its three because existing grading ring is closed ring structure, must be installed in the insulator string in advance; Therefore, often cause the aluminum grading ring in work progress, to sustain damage.
Summary of the invention
The purpose of this invention is to provide that a kind of grading ring is easy for installation, Stability Analysis of Structures, intensity be high ± 800KV heavy icing area tetrad strain insulator-string.
The objective of the invention is to realize like this: a kind of ± 800KV heavy icing area tetrad strain insulator-string; Comprise two hanging point gold utensils that are used for being connected with shaft tower; Each hanging point gold utensil is after bolt connects identical gold utensil; Be connected on one the first yoke plate left end through bolt again, be connected with two insulators through ball-eye on the right-hand member of this first yoke plate; Two insulators in four insulators are connected on one second yoke plate; Two other insulator is connected on another second yoke plate; Link plate is connected with the combination yoke plate two second yoke plates through the right angle respectively, is connected with six strain clamps that are used for the anchoring six-multiple conductor on the combination yoke plate, and two insulators are provided with a grading ring; Two other insulator is provided with another pressure ring, also has two shading rings; Grading ring is open type grading ring or split type grading ring; This open type grading ring structure is: on the circular endless tube that is bent by pipe an opening is arranged, and be welded with a support on the circular endless tube, this support is through being bolted on the second corresponding yoke plate; The split type grading ring structure of this both legs support is: its annulus is made up of symmetrical left endless tube and right endless tube; And between left endless tube and the right endless tube certain interval is arranged; All be connected with the both legs support on left side endless tube and the right endless tube; This both legs support is through being bolted to corresponding second yoke plate, and left endless tube and right endless tube are provided with the center symmetric mode each other, and the both legs support is connected on left endless tube and the right endless tube through argon arc welding; Combination yoke plate structure is: become tetrad plate, two right angle link plates and two one change two yoke plates by one two and form through Bolt Connection; Two become that tetrad plate tops are left and right to have two insulator strings symmetrically and connect and use the hole; Two become that tetrad plate bottoms are left and right to have four holes symmetrically; First hole in these four holes is respectively applied for the 4th hole and is connected a six-multiple conductor; Connect a right angle link plate through bolt on second hole in these four holes; The bottom of this right angle link plate connects one one through bolt and becomes two yoke plates, this one become two yoke plate bottoms two holes be respectively applied for and connect a six-multiple conductor, the member that connects on the member that connects on the 3rd hole in these four holes and second hole is identical; Said two shading rings are separately fixed at two through support and become the left and right two ends of tetrad plate.
Also have the six-multiple conductor retention system: the anchor ear of being made up of two anchor ear pressing plates is through being bolted to the support frame middle part; Being six Kong Shangjun that regular hexagon distributes on the support frame has as the wire clamp of clamping jumper wire spacing rod through Bolt Connection and holds head, and wire clamp is held in the wire clamp of head and is lined with rubber blanket.
The gold utensil that is connected between above-mentioned each hanging point gold utensil and the first yoke plate left end is: the hanging point gold utensil is connected on the openend of the first U-shaped link; The second U-shaped link and the first U-shaped link buckle each other; The openend of the second U-shaped link is connected on the adjustment plate; Connect fixed traction link plate and towing plate in order on the other end of adjustment plate, the towing plate other end is connected with the 6th right angle link plate, and the 6th right angle link plate other end is connected on the hole of the first yoke plate left end.
Compared with prior art, the present invention has following characteristics and advantage:
1, the hanging point gold utensil still adopts Italian cake formula hanging point, and this hanging point compact conformation rotates flexibly, and reasonable stress is particularly useful for the heavy icing area circuit.
2, string shape is arranged and is adopted the combination yoke plate to accomplish six division wirings, and upper and lower two-layer gold utensil string installs bracing frame additional at combination yoke plate place, improves stability and load ability to bear on the overall structure.
3, owing to join the spacing increasing, consider that simultaneously voltage distributes to the requirement of anti-height on the grading ring,, grading ring and shading ring are separated design, independently accomplish its electric function separately, be installed on two yoke plates and two respectively and become on the tetrad plates for ease of arranging.
4, in order to ensure the anticorona performance of gold utensil self, grading ring adopts split-type design, can treat to install after insulator string installs, and guarantees that the aluminum grading ring does not receive the damage of work progress, guarantees that self anticorona performance is unaffected.
5, adopt the combination yoke plate can guarantee that six-multiple conductor is distributed on the orthohexagonal summit, have in accurate positioning, the use advantage little, compact conformation that can not be subjected to displacement, take up room.
6, the split type grading ring of both legs support adopts center symmetric mode structure, makes things convenient for the on-the-spot installation of gold utensil string on the one hand, and the structure stress after installing on the other hand is more balanced, has prolonged useful life.
7, six-multiple conductor maintenance mechanism can guarantee accurate positioning, and it adopts detachable structure making things convenient for installation, adopts the hood type structure, and making the wire clamp of six-multiple conductor hold head can move along stay pipe along line direction, thereby makes its installation site adjustable.
Description of drawings
Fig. 1, Fig. 2 are respectively front view of the present invention and vertical view.
Fig. 3 is the left view (illustrate be six strain clamps that regular hexagon arrange) of Fig. 1 along the A-A line.
Fig. 4, Fig. 5 are respectively the front views and left view (different with grading ring among Fig. 1) of open type grading ring.
Fig. 6, Fig. 7, Fig. 8 are respectively front view and the vertical view and the left views of the split type grading ring of both legs.
Fig. 9, Figure 10 are respectively the front view and the vertical views of six-multiple conductor retention system.
Figure 11 is the front view of support frame shown in Figure 9.
Figure 12, Figure 13 are respectively the front view and the left views of anchor ear pressing plate shown in Figure 9.
Embodiment
In the accompanying drawing, 1a: the first U-shaped link; 1b: the second U-shaped link; 2: the first adjustment plates; 3: parallel link plate; 4: towing plate; 5: the first right angle link plates; 6a: the second right angle link plate; 6b: the 3rd right angle link plate; 7: the second adjustment plates; 8:U shape link; 9: the hanging point gold utensil; 10: space-adjusting wire clamp; 11: the four right angle link plates; 12: prolong pull bar; 13: prolong pull bar; 14: the five right angle link plates; 15: socket-clevis eye; 16: the first yoke plates; 16a: second yoke plate; 17: ball-eye; 18: two change tetrad plates; 19: one change two yoke plates; 20: grading ring; 21: shading ring; 22: strain clamp; 23: Support frame; 24: the six right angle link plates; 24a: the 7th right angle link plate; 25: the eight right angle link plates; 26, insulator.
Among Fig. 1, Fig. 2, Fig. 3; A kind of ± 800KV heavy icing area tetrad strain insulator-string; Comprise two hanging point gold utensils 9 that are used for being connected with shaft tower; Each hanging point gold utensil is connected on one first yoke plate 16 left ends through bolt after bolt connects identical gold utensil again, is connected with two insulators 26 through ball-eye 17 on the right-hand member of this first yoke plate; Two insulators in four insulators are connected on one the second yoke plate 16a; Two other insulator is connected on another second yoke plate; Link plate is connected with the combination yoke plate above-mentioned two second yoke plates through the right angle respectively, is connected with 22, two insulators of six strain clamps that are used for the anchoring six-multiple conductor on the combination yoke plate and is provided with a grading ring 20; Two other insulator is provided with another grading ring, also has two shading rings 21; Grading ring 20 is open type grading ring or the split type grading ring of both legs support; Referring to Fig. 4, Fig. 5, this open type grading ring structure is: on the circular endless tube 27 that is bent by pipe an opening is arranged, and be welded with a support 27a on the circular endless tube, this support is through being bolted on the second corresponding yoke plate 16a; Referring to Fig. 6, Fig. 7, Fig. 8; The split type grading ring structure of this both legs support is: its annulus is made up of symmetrical left endless tube 28 and right endless tube 29; And between left endless tube and the right endless tube certain interval is arranged; All be connected with two both legs supports 30 on left side endless tube and the right endless tube, this both legs support is through being bolted on the corresponding second yoke plate 16a, and left endless tube and right endless tube are provided with the center symmetric mode each other; The both legs support is connected (two change tetrad plates 18 turn clockwise 90 ° among Fig. 2, judge its left and right direction) on left endless tube and the right endless tube through argon arc welding.
Combination yoke plate structure is: become tetrad plate 18, two right angle link plates 14 and two one by one two and become two yoke plates 19 and form through Bolt Connection; Two become that tetrad plates 18 tops are left and right to have two insulator strings symmetrically and connect and use the hole; Two become that tetrad plate bottoms are left and right to have four holes symmetrically; First hole in these four holes is respectively applied for the 4th hole and is connected a six-multiple conductor; Connect a right angle link plate 14 through bolt on second hole in these four holes; The bottom of this right angle link plate connects one one through bolt and becomes two yoke plates 19, this one become two yoke plate bottoms two holes be respectively applied for and connect a six-multiple conductor, the member that connects on the member that connects on the 3rd hole in these four holes and second hole is identical; Said two shading rings 21 are separately fixed at two through support and become tetrad plate 18 left and right two ends.
The gold utensil that is connected between each hanging point gold utensil and first yoke plate, 16 left ends is: hanging point gold utensil 9 is connected on the openend of the first U-shaped link 1a; The second U-shaped link 1b and the first U-shaped link buckle each other; The openend of the second U-shaped link 1b is connected on the adjustment plate 2; Connect fixed traction link plate 3 and towing plate 4 in order on the other end of adjustment plate, the towing plate other end is connected with the 6th right angle link plate 24, and the 6th right angle link plate other end is connected on the hole of first yoke plate, 16 left ends.
Also have the six-multiple conductor retention system: the anchor ear of being made up of two anchor ear pressing plates 32 is through being bolted to support frame 31 middle parts; Being six Kong Shangjun that regular hexagon distributes on the support frame has as the wire clamp of clamping jumper wire spacing rod through Bolt Connection and holds 33, and wire clamp is held in the wire clamp of head and is lined with rubber blanket (referring to Fig. 9, Figure 10, Figure 11, Figure 12 and Figure 13).
The structural design of gold utensil insulator string: the heavy icing area strain tower mainly adopts tetrad three hanging points.Insulator string adopts two GD type cake formula hanging points with being connected of shaft tower; Connect supporting U-loop; Through P type link plate, DB type adjustment plate, QY type towing plate, L type two yoke plates, QP type ball-eye connect insulator string one end, the insulator string other end mainly by socket-clevis eye through L type two yoke plates; Z-shaped and ZS type link plate, two become the tetrad plates accomplishes six divisions with two two yoke plates combination backs and connects up.Again through DB type adjustment plate, prolong gold utensils such as pull bar and be connected to U type ring, the firm anchor ring of the strain clamp portion that U-loop has penetrated with the anchoring of six roots of sensation sub-conductor accomplishes the connection of whole string.
When being used for angle tower, the L value in the corner outside is adjusted by the corner size.Six roots of sensation sub-conductor divides upper, middle and lower-ranking, and two gold utensil string length of every layer are consistent, increases progressively step by step through the length of prolongation pull bar with 390mm, so that six roots of sensation wire jumper also is positioned on the orthohexagonal summit that the length of side is 450mm.Because last two lead drainage threads of six-multiple conductor draw following time, can run into following two leads, when lead is swung, can produce fraying of lead, between downlead and prolongation pull bar, jumper wire spacing rod is installed and is fixed.Its basic assembling mode is shown in accompanying drawing 1~3.
Among Fig. 1, Fig. 2, ball-eye 17 1 ends are fixed on insulator 26 left ends, and the 4th right angle link plate 11 is connected between the ball-eye 17 and first yoke plate 16; Fixing socket-clevis eye 15 on insulator 26 right-hand members, socket-clevis eye 15 connects the second yoke plate 16a in order, and the 7th right angle link plate 24a, the 8th right angle link plate 25 and two become tetrad plates 18; Six wire clamps on the support frame 23 (referring to Figure 11) are held head as the clamping six-multiple conductor.

Claims (3)

1. one kind ± 800KV heavy icing area tetrad strain insulator-string; Comprise; Two the hanging point gold utensils (9) that are used for being connected with shaft tower; Each hanging point gold utensil is connected on first yoke plate (16) left end through bolt after bolt connects identical gold utensil again, is connected with two insulators (26) through ball-eye (17) on the right-hand member of this first yoke plate; Two insulators on one first yoke plate (16) are connected on one second yoke plate (16a); Two insulators on another first yoke plate are connected on another second yoke plate; Link plate is connected with the combination yoke plate above-mentioned two second yoke plates through the right angle respectively; Be connected with six strain clamps (22) that are used for the anchoring six-multiple conductor on the combination yoke plate; Two insulators on above-mentioned one first yoke plate are provided with a grading ring (20), and two insulators on another first yoke plate are provided with another grading ring, also have two shading rings (21); It is characterized in that: said grading ring (20) is open type grading ring or the split type grading ring of both legs support; This open type grading ring structure is: on the circular endless tube (27) that is bent by pipe an opening is arranged, and be welded with a support (27a) on the circular endless tube, this support is through being bolted on corresponding second yoke plate (16a); The split type grading ring structure of this both legs support is: its annulus is made up of symmetrical left endless tube (28) and right endless tube (29); And between left endless tube and the right endless tube certain interval is arranged; All be connected with two both legs supports (30) on left side endless tube and the right endless tube; This both legs support is through being bolted on corresponding second yoke plate (16a), and left endless tube and right endless tube are provided with the center symmetric mode each other, and the both legs support is connected on left endless tube and the right endless tube through argon arc welding;
Said combination yoke plate structure is: become tetrad plate (18), two other right angle link plate (14) and two one change two yoke plates (19) by one two and form through Bolt Connection; Two become that tetrad plate (18) tops are left and right to have two insulator strings symmetrically and connect and use the hole; Two become that tetrad plate bottoms are left and right to have four holes symmetrically; First hole in these four holes is respectively applied for the 4th hole and is connected a six-multiple conductor; Connect the right angle link plate (14) in above-mentioned two other right angle link plate through bolt on second hole in these four holes; The bottom of this right angle link plate connects one one through bolt and becomes two yoke plates (19), this one become two yoke plate bottoms two holes be respectively applied for and connect a six-multiple conductor, the member that connects on the member that connects on the 3rd hole in these four holes and second hole is identical; Said two shading rings (21) are separately fixed at two through support and become the left and right two ends of tetrad plate (18).
2. according to claim 1 ± 800KV heavy icing area tetrad strain insulator-string; It is characterized in that: also have the six-multiple conductor retention system: the anchor ear of being made up of two anchor ear pressing plates (32) is through being bolted to support frame (31) middle part; Being six Kong Shangjun that regular hexagon distributes on the support frame has as the wire clamp of clamping jumper wire spacing rod through Bolt Connection and holds head (33), and wire clamp is held in the wire clamp of head and is lined with rubber blanket.
3. according to claim 2 ± 800KV heavy icing area tetrad strain insulator-string; It is characterized in that: the gold utensil that is connected between said each hanging point gold utensil and first yoke plate (16) left end is: hanging point gold utensil (9) is connected on the openend of the first U-shaped link (1a); The second U-shaped link (1b) buckles with the first U-shaped link each other; The openend of the second U-shaped link (1b) is connected on the adjustment plate (2); Connect fixed traction link plate (3) and towing plate (4) in order on the other end of adjustment plate, the towing plate other end is connected with the 6th right angle link plate (24), and the 6th right angle link plate other end is connected on the hole of first yoke plate (16) left end.
CN 201110047986 2011-03-01 2011-03-01 Four-link tension string for +/-800KV heavy ice area Active CN102097189B (en)

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Publication number Priority date Publication date Assignee Title
CN106711904B (en) * 2015-07-27 2018-09-14 中国电力科学研究院 A kind of damping conductor spacer of insulator chain
CN106384987B (en) * 2015-07-27 2021-08-27 中国电力科学研究院 Spacer for insulator string
CN105807099B (en) * 2016-04-19 2018-08-31 浙江华电器材检测研究所有限公司 Split conductor stringer

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RO102907B1 (en) * 1989-04-14 1992-06-22 Constructii Metalice Si Prefab Compensation and protection armature for vertical maintenance chain of
JP2626842B2 (en) * 1991-04-01 1997-07-02 東京電力株式会社 Tensile insulator device for multiconductor
CN101236810A (en) * 2007-01-31 2008-08-06 李谋祥 Equalized voltage ring
CN101699572A (en) * 2009-09-18 2010-04-28 成都电力金具总厂 Triple strain insulator string for ultra-high voltage transmission line

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Title
JP平4-306516A 1992.10.29

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