CN106848972A

CN106848972A - A kind of damper for ultra-high-tension power transmission line

Info

Publication number: CN106848972A
Application number: CN201710267589.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-07
Filing date: 2015-04-07
Publication date: 2017-06-13
Also published as: CN104753011B; CN104753011A; CN106936107A

Abstract

The invention discloses a kind of damper for ultra-high-tension power transmission line, belong to high voltage power transmission accessory technical field.The damper includes wire clamp, steel strand wires and tup, described wire clamp is fixedly connected on high-tension line, wire clamp lower end is connected with steel strand wires, the two ends of steel strand wires are fixedly connected two on the symmetrical tup of wire clamp, middle cavity is provided with described tup, described middle cavity inner sealing has mercury, and two tups of wire clamp both sides are identical.It is of the invention easily to realize, it is effect improved significantly for ultra-high-tension power transmission line damper.

Description

A kind of damper for ultra-high-tension power transmission line

Technical field

The present invention relates to a kind of damper, more particularly to a kind of anti-vibration hammer for high-voltage power transmission lines belongs to high voltage power transmission and matches somebody with somebody Part technical field.

Background technology

High-tension overhead line bar position is higher, and span is larger, when wire is acted on by wind-force, it may occur that vibration.Wire shakes When dynamic, the condition of work at wire suspension is the most unfavorable.Due to repeatedly vibration, can make wire because periodically bend can occur it is tired Labor destroy, can also make insulator fixed position loosen in addition come off and gold utensil damage, when overhead transmission line span be more than 120 meters When, it is general shockproof using stockbridge damper.Damper is fixed on trolley line by its wire clamp, when trolley line vibrates, vibrationproof Hammer moves up and down, and its steel strand wires is produced most of vibrational energy of interior friction consumption trolley line, and damping of the air to weight disappears Consumption part energy, part energy is penetrated in consumption at shockproof hammer thread clip.According to principle of energy balance, the energy ezpenditure of damper makes The intensity decreases of line vibration.The damper structure type for using both at home and abroad at present has FR types damper, symmetric form damper, turns round Rectangle stockbridge damper, it has four intrinsic frequencies in FR shape dampers, and the frequency range of strick precaution is wider, but smaller, the symmetric form that consumes energy The energy of shockproof hammer consumption is larger, but only two intrinsic frequencies, and moment of torsion type stockbridge damper takes precautions against frequency five, and power consumption is also big, But the stress being subject at wire clamp is very big.In the damper of circuit is installed and used, generally to be selected according to the actual conditions of circuit With design corresponding damper, above damper can play certain effect in quake protection, but consume vibrational energy, Shockproof frequency aspect also has certain deficiency.

The content of the invention

It is an object of the invention to overcome current vibrationproof hammer consumption vibrational energy and the not enough problem of strick precaution vibration frequency, there is provided A kind of anti-vibration hammer for high-voltage power transmission lines.

To realize the purpose of the present invention, the technical solution adopted in the present invention is：Anti-vibration hammer for high-voltage power transmission lines, including Wire clamp, steel strand wires and tup, described wire clamp are fixedly connected on high-tension line, and wire clamp lower end is connected with steel strand wires, steel strand wires Two ends be fixedly connected two on the symmetrical tup of wire clamp, middle cavity, described middle cavity are provided with described tup Inner sealing has mercury, and two tups of wire clamp both sides are identical, and further, the volume of the mercury of described middle cavity inner sealing is：Should The weight of the mercury of volume is equal in weight with same hollow cavity volume tup, further, is provided with described middle cavity porous Net, on mercury solution face, further, the porous web set in described middle cavity has many to the height of porous web from bottom to up Layer, on mercury solution face, further, the volume of mercury is hollow cavity product to the porous web of the superiors in described middle cavity 90-95%。

Advantageous Effects of the invention are：The present invention be provided with tup in cavity, middle cavity inner sealing has mercury, Mercury is liquid, and in vibration processes, athletic meeting of the mercury solution in middle cavity consumes part conductor vibration energy, makes partial vibration Energy is converted into interior energy or heat energy or other forms, sets multi-layer porous net in middle cavity, mercury solution in motion process with net Between produce friction can equally consume portion of energy, in the situation elder generation that mesh specific surface area is larger, the consumption of this energy is More it will be evident that can improve consumption and absorption of the damper to vibrational energy above, and due to the inertia of mercury solution itself, Motion in tup can also increase damper vibration frequency range, and the conductor vibration frequency range of strick precaution is more, although mercury solution Price be higher than the price of hammer head material, but the present invention is for being easily caused the occasion institute of high voltage transmission line damage by vibration The benefit of generation will be significantly larger than the increase of damper cost in itself, and the present invention is easily realized, for ultra-high-tension power transmission line vibrationproof Hammer is effect improved significantly.

Brief description of the drawings

Fig. 1 is schematic diagram of the invention.

Fig. 2 is the schematic diagram after one embodiment of the present invention tup amplifies.

Fig. 3 is the schematic diagram of another embodiment of the present invention tup.

Specific embodiment

In order to more fully explain implementation of the invention, there is provided embodiment of the invention.These embodiments are only Elaboration to the device, does not limit the scope of the invention.

Anti-vibration hammer for high-voltage power transmission lines, including wire clamp, steel strand wires and tup, described wire clamp are fixedly connected on high-voltage line Lu Shang, wire clamp lower end is connected with steel strand wires, and the two ends of steel strand wires are fixedly connected two on the symmetrical tup of wire clamp, described It is provided with middle cavity on tup, described middle cavity inner sealing has mercury, identical, the described middle cavity of two tups of wire clamp both sides The volume of the mercury of inner sealing is：The weight of the mercury of the volume is equal in weight with same hollow cavity volume tup, i.e., the present invention does not change Become the design weight of tup, such as original tup weight 5kg, the moiety by weight that middle cavity cuts out is 1.5kg, then be filled with hollow The mercury solution of chamber 1.5kg, because hammer head material is iron, its density is less than mercury, so hollow in the case where former tup weight 5kg is kept Chamber will not be filled, and porous web is provided with middle cavity, and the height of porous web is further, described on mercury solution face The porous web set in middle cavity has multilayer from bottom to up, the porous web of the superiors on mercury solution face, the weight of porous web with The weight sum of mercury solution is equal in weight with the tup of same hollow cavity volume, i.e., the design weight for not changing tup as described above Amount.The volume of mercury is the 90-95% of hollow cavity product in described middle cavity, when the mercury solution of the 90-95% for reaching hollow cavity product During loading, in the case of tup weight is immovable, can significantly reduce tup volume, such case can be used in one A little special occasions, are such as also easy to produce the occasion that damper is in contact with other guiding, or in the vibrationproof of other communication lines.

More detailed implementation method combination accompanying drawing further instruction, in figure each mark for：1：Wire clamp；2：Steel strand wires； 3：Tup；31：Middle cavity；32：Mercury solution body；33：Porous web, the middle cavity in accompanying drawing is a signal, is shown in figure Tup upper surface, do not represent its it is actual opened up tup upper surface, middle cavity is located inside tup, and tup surface between It is enclosed construction, closing can be using welding or other seal forms.As shown in drawings, by taking FR type dampers as an example, damper Fixed on the line by wire clamp 1, the lower end of wire clamp 1 is provided with steel strand wires 2, tup 3, two tups are fixedly connected on steel strand wires 2 The both sides of wire clamp 1 are symmetrically distributed in, cavity 31 in being opened up on tup 3, the injection metal mercury solution in middle cavity 31, the amount of injection is not Change the design weight of tup, porous web can be set in middle cavity, 33 show porous web, and porous mesh is the smaller the better, many The aperture of hole pattern can from bottom to up set multi-layer porous net to micron order, and the contact area between such mercury solution and net can be increased, Can increase in the absorption to vibrational energy, Fig. 3 is that the volume of mercury of the present invention is the 90-95% of hollow cavity product, this Situation can be substantially reduced the volume of damper under identical weight.Mercury night in the present invention is enclosed in hammer body, can be with The through hole of cavity in extraneous leading to is opened up on hammer body, at this moment mercury night be not completely enclosed, to prevent mercury night from overflowing and intaking And pollution, through hole can be set to bending, and Open Side Down, and these are the scheme being easily achieved in the industry.The present invention is on tup Middle cavity is provided with, middle cavity inner sealing has mercury, and mercury is liquid, in vibration processes, the athletic meeting of mercury solution consumes part and leads Linearly coupled energy, sets multi-layer porous net in middle cavity, and mercury solution produces between net that friction is same to disappear in motion process Portion of energy is consumed, the above can improve consumption and absorption of the damper to vibrational energy, and due to the inertia of mercury solution itself, Motion in tup can also increase damper vibration frequency quantity, and the conductor vibration frequency range of strick precaution is more, although mercury The price of liquid is higher than the price of hammer head material, but the present invention for being easily caused the occasion that high voltage transmission line is damaged due to vibration Produced benefit will be significantly larger than the increase of damper cost in itself, and the present invention is easily realized, anti-for ultra-high-tension power transmission line Vibration hammer is effect improved significantly.

After embodiments of the present invention are described in detail, one of ordinary skilled in the art is clearly understood that, is not taking off Various change and modification can be carried out under above-mentioned claim with spirit, it is all real to more than according to technical spirit of the invention Any simple modification, equivalent variations and modification that example is made are applied, the scope of technical solution of the present invention is belonged to, and the present invention is also not It is limited to the implementation method of example in specification.

Claims

1. anti-vibration hammer for high-voltage power transmission lines, including wire clamp, steel strand wires and tup, described wire clamp are fixedly connected on high-tension line On, wire clamp lower end is connected with steel strand wires, and the two ends of steel strand wires are fixedly connected two on the symmetrical tup of wire clamp, and its feature exists In：Middle cavity is provided with described tup, described middle cavity inner sealing has mercury, and two tups of wire clamp both sides are identical；Institute Porous web is provided with the middle cavity stated, the height of porous web is on mercury solution face；The body of the mercury of described middle cavity inner sealing Product is：The weight of the mercury of the volume is equal in weight with same hollow cavity volume tup；The porous web set in described middle cavity There is multilayer from bottom to up, the porous web of the superiors is on mercury solution face.