CN203760992U - Double spring end part vibration reducing type spacing rod - Google Patents

Double spring end part vibration reducing type spacing rod Download PDF

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Publication number
CN203760992U
CN203760992U CN201420135214.5U CN201420135214U CN203760992U CN 203760992 U CN203760992 U CN 203760992U CN 201420135214 U CN201420135214 U CN 201420135214U CN 203760992 U CN203760992 U CN 203760992U
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CN
China
Prior art keywords
dashpot
spring
weakening
wire clamp
phase spacer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420135214.5U
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Chinese (zh)
Inventor
李学斌
张远博
姜常胜
朱义东
隋东硼
康激扬
王雅楠
胡大伟
耿莉娜
韩洪刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd
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Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420135214.5U priority Critical patent/CN203760992U/en
Application granted granted Critical
Publication of CN203760992U publication Critical patent/CN203760992U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a double spring end part vibration reducing type spacing rod which is suitable for use to an electric line of a volt of 66kV or above. The spacing rod belongs to the technical field of design, operation and repair in an overhead transmission line in a power system. The spacing rod comprises spacing insulators. The two ends of each spacing insulators are connected respectively with a cylindrical type spring vibration reducer (a) and a cylindrical type spring vibration reducer (b). The other ends of the cylindrical type spring vibration reducer (a) and the cylindrical type spring vibration reducer (b) are connected with clamp covers by connection fittings. The utility model adopts a double spring end vibration reducing and buffering structure; the two cylindrical type spring vibration reducers can absorb and weaken the self-excited oscillation of a power line at the first time and can reduce the oscillation transmitted along the spacing rods to the maximum so as to prevent a power line from being bended for exerted force. The double spring end vibration reducing structure is very effective to prevent ice-covered power lines from swinging and to hinder a power line from sub-span oscillation. For its low manufacturing costs, convenience to mount and free of maintenance, the spacing rod of the utility model has great prospects of being widely applied.

Description

A kind of dual spring end weakening type inter-phase spacer
Technical field
The utility model relates to a kind of dual spring end weakening type inter-phase spacer, is mainly applicable to 66kV and above circuit, belongs to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology
Waving of overhead transmission line is a kind of solid coupled vibrations of stream of complexity, and specific meteorological condition is one of principal element causing conductor galloping.When the icing section of overhead wire is irregularly shaped, common are crescent, fan-shaped, D shape etc., and ice thickness is between 3mm-20mm time, once run into the high wind of 5-10m/s, very easily bring out the large amplitude that natural frequencies is 0.1-3Hz, be about the 20-300 of diameter of wire doubly, self-excited vibration, is called and waves.Wave while generation, full shelves overhead transmission line does significantly wave vibration, and has swing concurrently, and swinging track is along line direction sub-elliptical shape.Because the amplitude of waving is large, have swing, a last very long, easily causes that alternate flashover, gold utensil damage, cause line tripping to have a power failure or cause burn power transmission line, forget about it shaft tower, the serious accident such as power transmission line fractures, thereby cause heavy economic losses.
Anti-galloping device common in existing transmission line has: detuning pendulum, two parallel wielded-proof device, anti-dance whip, cable clip rotary type conductor spacer etc.Be proven, to waving, to administer the method that proves to be really effective be that inter-phase spacer is installed.Although traditional compound phase conductor spacer has certain effect to suppressing to wave, in the time that meteorological condition is extremely severe, traditional composite alternate interval rod often can not be brought into play the effect that limiting circuitry is waved.The reason of searching to the bottom, because traditional inter-phase spacer lacks energy releasing device, the energy of waving on circuit cannot be discharged fast, the energy of accumulation finally causes the self-excitation vibration of circuit, therefore this equipment under particular weather with hidden danger will directly increase the O&M cost of circuit, affects the safe and stable operation of circuit.
Summary of the invention
For solving the problem of waving that in current power grid construction, large cross-domain transmission line increases, weather environment complexity of living in is brought, the utility model provides a kind of dual spring end weakening type inter-phase spacer, at the self-oscillation energy that suppresses can discharge fast in subspan oscillation circuit, guarantee that power system safety and stability moves and reduces O&M cost.
For achieving the above object, the utility model is taked following technical scheme:
A kind of dual spring end weakening type inter-phase spacer, comprises inter-phase spacer insulator; At the two ends of inter-phase spacer insulator adapter sleeve cartridge type spring dashpot a and telescopic spring dashpot b respectively; The other end of telescopic spring dashpot a and telescopic spring dashpot b is connected with wire clamp gland by being connected gold utensil respectively.
The telescopic spring dashpot b that described telescopic spring dashpot a and structure are identical; Its outside is to be all connected with dashpot sealing clamp by O-ring seal in the antifouling sleeve of dashpot, and the antifouling sleeve of dashpot is all buckled in and is connected on gold utensil with dashpot sealing clamp.
Its inside is to be sleeved on two location damping guide rods by weakening damping spring, and the two ends of location damping guide rod are connected with the inwall of the antifouling sleeve of dashpot respectively; The two ends of weakening damping spring are connected with two weakening spring stops respectively, and the other end of two weakening spring stops connects dashpot sealing clamp.
The radius of described location damping guide rod is less than the internal diameter of weakening damping spring.
Described described wire clamp gland is to be connected with the wire clamp gold utensil monaural structure being connected on gold utensil by the wire clamp gland ears structure on it, and by female fastening being connected of dashpot bolt pin and dashpot fastening bolt.
Described described wire clamp gland is connected with transmission line wire by two groups of wire clamp fastening bolt pins and wire clamp fastening bolt are female.
The utility model is a kind of dual spring end weakening type inter-phase spacer, has adopted the structure of two weakening spring end bufferings.It can suppress subspan oscillation by two and discharge the telescopic spring dashpot of line oscillation energy, inter-phase spacer insulator, two cover wire clamps, two groups of bolt pins to form.Wherein, the impulse stroke of weakening damping spring in sleeve provides exergonic approach, two telescopic spring dashpots are between the first and end and wire clamp of inter-phase spacer insulator, can absorb and cut down the self-oscillation energy on circuit the very first time, reduce to greatest extent the energy of waving along inter-phase spacer transmission, avoid amplitude to increase the further stressed bending that causes circuit, this is maximum feature of the present utility model.Dual spring end Vibration eliminating structure has remarkable result for the subspan oscillation that prevents the waving of icing circuit, limiting circuitry, in conjunction with low cost, easily installs, and exempts from the feature of O&M, the utlity model has application prospect widely.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the cutaway view of vibration damping device in the utility model.
In figure: telescopic spring dashpot a1, telescopic spring dashpot b2, wire clamp gland 3, wire clamp fastening bolt pin 4, wire clamp fastening bolt mother 5, dashpot bolt pin 6, dashpot fastening bolt mother 7, connects gold utensil 8, inter-phase spacer insulator 9, wire clamp gland ears structure 10, wire clamp gold utensil monaural structure 11, weakening damping spring 12, location damping guide rod 13, weakening spring stop 14, dashpot sealing clamp 15, the antifouling sleeve 16 of dashpot, O-ring seal 17.
Embodiment
As Figure 1-Figure 4, a kind of dual spring end weakening type inter-phase spacer, comprises telescopic spring dashpot a 1,2,1 inter-phase spacer insulator of telescopic spring dashpot b 9, two cover wire clamp glands 3, two groups of wire clamp fastening bolt pins 4 and wire clamp fastening bolt mother 5, two groups of dashpot bolt pins 6 and female 7 compositions of dashpot fastening bolt.At the two ends of inter-phase spacer insulator 9 adapter sleeve cartridge type spring dashpot a1 and telescopic spring dashpot b2 respectively; The other end of telescopic spring dashpot a1 and telescopic spring dashpot b2 is connected with wire clamp gland 3 by being connected gold utensil 8 respectively.
Described telescopic spring dashpot a1 and the internal structure of telescopic spring dashpot b2 are identical; Its structure is that the location damping guide rod 13, one that are less than weakening damping spring 12 internal diameters by a weakening damping spring 12, two radiuses prevent the weakening spring stop 14 that weakening damping spring 12 is too stressed; One be connected 16, one sizes of the antifouling sleeve of dashpot that gold utensil 8 is interlockingly connected and conform to the antifouling sleeve 16 of dashpot, and be buckled in the dashpot sealing clamp 15 that connects gold utensil 8; An O-ring seal 17 between the antifouling sleeve 16 of dashpot and dashpot sealing clamp 15 forms.Wherein O-ring seal 17 coordinates dashpot sealing clamp 15 can effectively stop aqueous vapor, filth to enter in telescopic spring dashpot a 1 and telescopic spring dashpot b2, prevents the 12 corrosions inefficacies of weakening damping spring.
The outside of telescopic spring dashpot a1 and telescopic spring dashpot b2 is to be all connected with dashpot sealing clamp 15 by O-ring seal 17 in the antifouling sleeve 16 of dashpot, and the antifouling sleeve 16 of dashpot is all buckled in and is connected on gold utensil 8 with dashpot sealing clamp 15; Its inside is to be connected with the inwall of the antifouling sleeve 16 of dashpot that is fixedly connected with location damping guide rod 13 by one end of weakening damping spring 12, and weakening damping spring 12 is sleeved on two location damping guide rods 13; The other end of weakening damping spring 12 is connected with two weakening spring stops 14 that radius is less than on two of internal diameter location damping guide rods 13 of weakening damping spring 12 respectively, the other end connection dashpot sealing clamp 15 of weakening spring stop 14.
When a kind of dual spring end weakening of the utility model type inter-phase spacer is installed, wire clamp gland 3 line of engagement clamp fixing bolt pin 4 and wire clamp fastening bolt mother 5, first wire clamp is fixed on transmission line wire, again wire clamp gland ears structure 10 is connected to the wire clamp gold utensil monaural structure 11 that connects gold utensil 8, and fastening with dashpot bolt pin 6 and dashpot fastening bolt mother 7.
Weakening damping spring 12 one end are connected with antifouling sleeve 16 inwalls of dashpot that are fixed with location damping guide rod 13; The other end of weakening damping spring 12 is connected with weakening spring stop 14 tops of location damping guide rod 13, and in the time that weakening damping spring 12 does not stress, weakening spring stop 14 is on the lower side in the middle part of telescopic spring dashpot a 1 entirety.When circuit is because extraneous factor is when stressed, the telescopic spring dashpot a 1 that is positioned at wire clamp end will discharge energy by location damping guide rod 13 and weakening damping spring 12 very first time, cut down the self-oscillation energy of circuit from initial position, reduce the propagation of waving energy, avoid amplitude to increase the further stressed bending that causes circuit.
Finally should be noted that: above-described embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; other any change that does not deviate from the technical solution of the utility model and make or other equivalent replacement mode, within being included in protection range of the present utility model.

Claims (5)

1. a dual spring end weakening type inter-phase spacer, comprises inter-phase spacer insulator (9), it is characterized in that: at the two ends of inter-phase spacer insulator (9) adapter sleeve cartridge type spring dashpot a(1 respectively) and telescopic spring dashpot b(2); Telescopic spring dashpot a(1) with telescopic spring dashpot b(2) the other end be connected with wire clamp gland (3) by being connected gold utensil (8) respectively.
2. a kind of dual spring end weakening type inter-phase spacer according to claim 1, is characterized in that: described telescopic spring dashpot a(1) and the identical telescopic spring dashpot b(2 of structure);
Its outside is to be all connected with dashpot sealing clamp (15) by O-ring seal (17) in the antifouling sleeve of dashpot (16), and the antifouling sleeve of dashpot (16) is all buckled in and is connected on gold utensil (8) with dashpot sealing clamp (15);
Its inside is to be sleeved on two location damping guide rods (13) above by weakening damping spring (12), and the two ends of location damping guide rod (13) are connected with the inwall of the antifouling sleeve of dashpot (16) respectively; The two ends of weakening damping spring (12) are connected with two weakening spring stops (14) respectively, and the other end of two weakening spring stops (14) connects dashpot sealing clamp (15).
3. a kind of dual spring end weakening type inter-phase spacer according to claim 1, is characterized in that: the radius of described location damping guide rod (13) is less than the internal diameter of weakening damping spring (12).
4. a kind of dual spring end weakening type inter-phase spacer according to claim 1, it is characterized in that: described described wire clamp gland (3) is to be connected with the wire clamp gold utensil monaural structure (11) being connected on gold utensil (8) by the wire clamp gland ears structures (10) on it, and by dashpot bolt pin (6) and fastening being connected of dashpot fastening bolt mother (7).
5. a kind of dual spring end weakening type inter-phase spacer according to claim 1, is characterized in that: described described wire clamp gland (3) is connected with transmission line wire with wire clamp fastening bolt mother (5) by two groups of wire clamp fastening bolt pins (4).
CN201420135214.5U 2014-03-25 2014-03-25 Double spring end part vibration reducing type spacing rod Expired - Lifetime CN203760992U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420135214.5U CN203760992U (en) 2014-03-25 2014-03-25 Double spring end part vibration reducing type spacing rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420135214.5U CN203760992U (en) 2014-03-25 2014-03-25 Double spring end part vibration reducing type spacing rod

Publications (1)

Publication Number Publication Date
CN203760992U true CN203760992U (en) 2014-08-06

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ID=51256229

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420135214.5U Expired - Lifetime CN203760992U (en) 2014-03-25 2014-03-25 Double spring end part vibration reducing type spacing rod

Country Status (1)

Country Link
CN (1) CN203760992U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103928891A (en) * 2014-03-25 2014-07-16 国家电网公司 Double-spring end vibration absorbing type interphase spacer
CN108448521A (en) * 2018-04-11 2018-08-24 固力发电气有限公司 A kind of circuit Anti-galloping device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103928891A (en) * 2014-03-25 2014-07-16 国家电网公司 Double-spring end vibration absorbing type interphase spacer
CN108448521A (en) * 2018-04-11 2018-08-24 固力发电气有限公司 A kind of circuit Anti-galloping device

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C14 Grant of patent or utility model
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CX01 Expiry of patent term

Granted publication date: 20140806

CX01 Expiry of patent term