CN201417920Y

CN201417920Y - High-frequency response damper

Info

Publication number: CN201417920Y
Application number: CN2009201092876U
Authority: CN
Inventors: 王国彬
Original assignee: China Electric Power Research Institute Co Ltd CEPRI
Current assignee: State Grid Corp of China SGCC; China Electric Power Research Institute Co Ltd CEPRI
Priority date: 2009-06-23
Filing date: 2009-06-23
Publication date: 2010-03-03
Anticipated expiration: 2019-06-23

Abstract

The utility model particularly relates to a high-frequency response damper. The high-frequency response damper comprises a steel stranded wire, damper heads mounted at two ends of the steel stranded wire, and a wire clamp which is arranged on the steel stranded wire and used for connecting a conducting wire; the steel stranded wire is combined and stranded by a steel wire and a steel wire spray-coated with a corundum layer on the surface; and a plastic coated layer is arranged on the outer surface of the steel stranded wire after stranded to form. Through the improvement of the structure, thedamper can realize the quantified design and stable properties, enables the power response frequency of energy consumption to achieve even surpass 95Hz, and enables the power dispersion rate to be less than 5 percent of the requirement of the national standard, meets the vibration protection requirement of the operation of the practical lines, and fills the blank in the vibration prevention fieldin the northwest area under the working condition of high wind speed.

Description

A kind of high frequency response type stockbridge damper

Technical field

The utility model relates to a kind of stockbridge damper, specifically relates to a kind of high frequency response type stockbridge damper.

Background technology

Existing stockbridge damper, its parts that mainly consume energy are the steel strand wire at wire clamp two ends, and the layout that is connected by steel strand wire and tup, realize suppressing the effect that wind shakes.Main principle is to utilize under 2-4 the resonance frequency of stockbridge damper itself, and stockbridge damper steel strand wire and tup consumed power ability are bigger, and the vibration of lead wire and earth wire wind energy is consumed, and reduces the amplitude of tired vibration, thus the safe operation of protection ground wire.But find in the use that the stockbridge damper product performance is uneven, most of transmission line is 20-70Hz in its power consumption power response frequency of stockbridge damper of usefulness, relatively is applicable to the area of the low wind speed of low height above sea level.Main studies show that both at home and abroad, the quality of stockbridge damper steel strand wire and characteristic have determined the power characteristic of stockbridge damper substantially.Mainly be that steel strand wire difference or the assembling processing technology difference of choosing causes.Selecting for use and assembling processing of while steel strand wire influences bigger.Dispersiveness when being in particular in the test of stockbridge damper power characteristic is big and power spectrum is inaccurate.Present most of stockbridge damper power corresponding frequencies is up to 70Hz, generally between 50-60Hz (shown in Fig. 4 A).And for the transmission line long-time running of the Northwest under the high wind speed operating mode, it is particularly important that the high frequency characteristics of stockbridge damper just seems.Present most of stockbridge damper does not play the inhibition oscillating action basically for the non-constant of high band (greater than 95Hz) field vibration-isolating effect.The ground wire that this transmission line for the zone, northwest is subjected to high frequency wind vibration effect for a long time then loses protection, causes its ground wire tired broken string accident that takes place frequently.

So at present exigence is developed a stockbridge damper that can satisfy high band vibrationproof demand, simultaneously because transmission line prolonged application in the open air or in the adverse circumstances, so need utilize effective means further to prolong its cycle of operation.

The utility model content

In order to overcome defective of the prior art, the purpose of this utility model is to provide a kind of stockbridge damper that satisfies the high frequency response requirement.This stockbridge damper can be widely used in regional wind speed height and be easy to generate the transmission line of vibration, the hazard of vibration of inhibition high frequency wind, effectively protects the operation of transmission line.

For this reason, the utility model proposes a kind of high frequency response type stockbridge damper, this stockbridge damper comprises steel strand wire, two tups and is arranged on the wire clamp that is used to connect lead on the steel strand wire, described tup is installed in the two ends of steel strand wire, the steel wire strand system that wherein said steel strand wire adopt steel wire and surface to be coated with the Buddha's warrior attendant layer of sand forms, and the outer surface of described steel strand wire is provided with a coating layer.

Wherein, the two ends of described steel strand wire respectively are socketed with a steel bushing, and described steel bushing places tup.

Wherein, be coated with a protective layer on the outer surface of described tup, this protective layer is good to adopt zinc coat.

The beneficial effects of the utility model are:

1) the utility model improves by the inside and outside bilge construction to steel strand wire, has both improved the rigidity and the intensity of steel strand wire, can guarantee that again steel strand wire pass to the moment of inertia of tup.By calculating, carry out quantity Matching with ordinary steel wire and the steel wire that is coated with the Buddha's warrior attendant layer of sand.Form with the normal strand system mode system of twisting mutually, utilize the powerful frictional force of diamond dust to avoid loosely organized, improve mechanical property, realize the controlled of integral rigidity characteristic.Strengthen the power consumption of high frequency (greater than 95Hz) power thereby rub between the thigh that utilizes each steel wire to form, improved corrosion-resistant simultaneously and the antifatigue level.

2) tup is connected by adopting the sealing riveting mode with steel strand wire, can realize effectively that power characteristic changes and improve the power consumption level.The steel strand wire outer surface is coated with a protective layer, and it is loose to guarantee that steel strand wire do not take place when cutting, improves the stability of relevant stiffness parameters.

3) of the present utility model simple in structure, fitting operation is easy, and its profile meets the high-voltage corona requirement, electric property satisfies service requirement, outer surface to tup carries out zinc-plated (A level) processing, makes it better adapt to the application in open-air place, effectively prolongs its useful life.

Description of drawings

Fig. 1 is the external structure schematic diagram of the utility model high frequency response type stockbridge damper, user mode figure promptly of the present utility model;

Fig. 2 is the internal structure schematic diagram of a tup of the utility model high frequency response type stockbridge damper;

Fig. 3 is the cross section structure schematic diagram of the steel strand wire of the utility model stockbridge damper;

Fig. 4 is the power characteristic figure of stockbridge damper, and wherein Fig. 4 A is the power characteristic figure of common stockbridge damper in the prior art, and Fig. 4 B is the power characteristic figure of high frequency response type stockbridge damper of the present utility model;

Wherein, the 1-steel strand wire, the 1a-steel wire, 1b-Buddha's warrior attendant layer of sand, the 1c-surface is coated with the steel wire of Buddha's warrior attendant layer of sand, 2-tup, 3-wire clamp, 4-coating layer, 5-steel bushing, 6-protective layer, 7-lead.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

As Figure 1-3, high frequency response type stockbridge damper of the present utility model comprises steel strand wire 1, two tups 2 and wire clamps 3, described steel strand wire 1 apply prestressing force strand system by steel wire 1a and the surperficial steel wire 1c that is coated with Buddha's warrior attendant layer of sand 1b and form, these steel strand wire of sentencing 1 * 19 form are example, and its steel wire is arranged according to three-decker: innermost layer is a core wire 1a; The second layer adopts 1 steel wire 1a and 5 surfaces to scribble the steel wire 1b of Buddha's warrior attendant layer of sand 1c and is that axis is evenly distributed on its outside with core wire 1a; Outermost layer adopts 5 steel wire 1a and 7 surfaces to scribble the steel wire 1b of Buddha's warrior attendant layer of sand 1c and is the outside that axis is evenly distributed on the second layer with core wire 1a, because the part Steel Wire Surface scribbles the Buddha's warrior attendant layer of sand, so after the engaged hinge joint of each steel wire, form powerful frictional force.In order to improve the sealing between steel strand wire and tup and the power consumption level of stockbridge damper, each socket one steel bushing 5 at the two ends of steel strand wire, by sealing riveting technology of the prior art two tups 2 are installed in the two ends of the steel strand wire 1 that are socketed with steel bushing more respectively, the corresponding position of the outer surface of steel strand wire 1 is provided with a coating layer 4 (be between two tup front portions shown in Fig. 2 steel strand wire be provided with a coating layer 4), this coating layer adopts plastic spraying that plastics are pressed onto on the steel strand wire, this coating layer is mainly used in rigidity and the intensity that improves steel strand wire, the loose and basic prestressing force of assurance steel strand wire in the time of can effectively preventing to cut.Wire clamp 3 is installed to the mid portion of the steel strand wire after the moulding, promptly finishes the typing of the utility model stockbridge damper.At last, more adapt to application in open-air place and the adverse circumstances in order to make stockbridge damper of the present utility model, be coated with a protective layer 6 at the outer surface of tup 2, this protective layer is good to adopt zinc coat.

As shown in Figure 1, in use, the stockbridge damper that will have said structure is installed on the transmission line wire 7 by the wire clamp 3 that is installed on the steel strand wire 1, can realize its protective effect to lead.

Strand structure as shown in Figure 3 is a kind of in numerous strand structures, and the steel strand wire that the technical solution of the utility model is equally applicable to other form (for example: 1 * 7 ...).When reality is used, the Buddha's warrior attendant layer of sand that can increase or reduce Steel Wire Surface according to rigidity and requirement of strength to steel strand wire, the steel wire 1c that the surface is coated with Buddha's warrior attendant layer of sand 1b is many more, and the rigidity of steel strand wire and intensity are big more, thereby has improved the high frequency power power consumption of stockbridge damper.Shown in Fig. 4 A, existing stockbridge damper only adopts steel wire 1a to make steel strand wire, its power corresponding frequencies is generally between 10-50Hz, shown in Fig. 4 B, stockbridge damper of the present utility model is coated with the steel wire 1c of Buddha's warrior attendant layer of sand 1b and the strand structure that steel wire 1a is hinged by adopting the surface, and its power response frequency can be increased to 85Hz.

Stockbridge damper of the present utility model is by the improvement to structure, realized that design quantizes, stability of characteristics, make its power response frequency meet or exceed 95Hz, and realize that the power dispersion rate is less than 5% of national standard requirement, satisfy the operation vibrationproof demand of actual track, filled up the blank of aspect, transmission line vibrationproof field in the relevant range.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1, a kind of high frequency response type stockbridge damper, this stockbridge damper comprises steel strand wire (1), two tups (2) and is arranged on the wire clamp (3) that is used to connect lead on the steel strand wire, described tup is installed in the two ends of steel strand wire, it is characterized in that: steel wire (1c) the strand system that described steel strand wire adopt steel wire (1a) and surface to be coated with Buddha's warrior attendant layer of sand (1b) forms, and the outer surface of described steel strand wire (1) is provided with a coating layer (4).

2, high frequency response type stockbridge damper as claimed in claim 1, it is characterized in that: the two ends of described steel strand wire (1) respectively are socketed with a steel bushing (5), and described steel bushing places tup (2).

3, high frequency response type stockbridge damper as claimed in claim 1 is characterized in that: be coated with a protective layer (6) on the outer surface of described tup (2).

4, high frequency response type stockbridge damper as claimed in claim 3, its spy just is: described protective layer (6) adopts zinc coat.