CN106300198B - The two parallel wielded-proof device and application method of a kind of overhead transmission line - Google Patents
The two parallel wielded-proof device and application method of a kind of overhead transmission line Download PDFInfo
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- CN106300198B CN106300198B CN201610890978.9A CN201610890978A CN106300198B CN 106300198 B CN106300198 B CN 106300198B CN 201610890978 A CN201610890978 A CN 201610890978A CN 106300198 B CN106300198 B CN 106300198B
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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
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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Abstract
The present invention relates to a kind of two parallel wielded-proof device of overhead transmission line and application method, including wire clamp, stove bolt, loop isolation stall, short connecting rod, resonance pendulum shock absorber, Parametrical excitation pendulum shock absorber, wire clamp one end is secured on transmission pressure, the other end is uniformly secured on loop isolation stall by stove bolt, and quantity and the power transmission line quantity of wire clamp match；Several uniform through holes of loop isolation stall, loop isolation stall bottom sets two short connecting rods, the angle of two short connecting rods is α, and the axis of symmetry of short connecting rod passes through the loop isolation stall center of circle, short connecting rod bottom is connected with resonance pendulum shock absorber, resonance pendulum shock absorber swings back and forth around split conductor center, absorbs the vibrational energy of transmission pressure, reduces the vibration of transmission pressure.Advantage is：Resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber are joined to together, form a monoblock type two parallel wielded-proof device, while carry out vibration damping to horizontal vibration, vertical vibration and tilt and vibration.
Description
Technical field
The invention belongs to power transmission system protection circuit field, more particularly to a kind of double-pendulum anti-galloping of overhead transmission line
Device and application method.
Background technology
In power transmission system, the safe operation of overhead transmission line is particularly significant.Under wind action, overhead power transmission
There is dither (i.e. aeolian vibration), the vibration of secondary span and low-frequency vibration (i.e. conductor galloping) mode of vibration for line.It is aerial
Waving for power transmission line refers to what is occurred under certain natural environment, as wind to lift variation produced by unsymmetrical section wire and
Caused a kind of low frequency, significantly self-excited vibration, frequency range are generally 0.1~1Hz, and amplitude is equal from tens centimetres to more than ten meters
Occur, it is longer due to waving the time, wire fatigue rupture, such as wire abrasion or stranded are will result in, or even cause to break,
Cause transmission line of electricity to have a power failure to trip, or cause electric tower inclination or collapse accident, the safety in production of serious threat overhead transmission line
Operation.In order to reduce Galloping of Overhead Transmission Line, there has been proposed ballast, detuning pendulum, damper and air flow spoiler etc., and
Also applied in practice, still, because the actual conditions of conductor galloping are very complicated, there is horizontal dance during waving
Move, vertically wave and reverse and wave, therefore, the anti-dance effect of various anti-dance measures will also be improved further.Solved using science and technology
Certainly problem present in power transmission system, based on kinetic theory, release a kind of new double-pendulum anti-galloping of overhead transmission line
Device, there is very big realistic meaning.
Existing Patents documents, publication number：CN101702503A, disclose one kind division transmission pressure torsional oscillation more and prevent
Device is waved, two or more is fixed the wire clamp of transmission pressure, is uniformly arranged on annular space rod；T-shaped swing rod is fixed on annular space
Rod bottom, the arc pipe of T-shaped swing rod is interior to contain weighted spherical ball and low-temperature antifreeze liquid, and it prevents frame by ball gravity self-balancing
Hollow wire reverses, and there is certain torsional oscillation that reduces to act on.Publication number：CN202917920U, a kind of damp type anti-dance device is disclosed, it
It is to connect support arm on double frameworks of multiple fission conductor conductor spacer, the metal for the built-in damping-article that is connected through support arm
Cylinder, because metal cylinder and damping-article are added together enough quality, can improve the kinetic stability of wiring system, play double pendulum
The effect of anti-dance device, while metal ball can freely roll in metal cylinder internal damping liquid, be produced when metal ball rolls with damping fluid
Rubbed consumed energy, and compression spring, and energy is absorbed after spring-compressed to be produced with the sealing baffle in metal cylinder or both ends spring
Raw collision impact changes wiring system frequency, suppresses waving for wire.These anti-dance devices have certain damping effect, still,
Studied by kinetic theory, effectiveness in vibration suppression is smaller, does not reach optimal effectiveness in vibration suppression.Publication number：CN202159946U, it is open
One kind six divides detuning pendulum anti-dance damping conductor spacer, includes six cracking damping conductor spacers of a regular hexagon structure, at it
Connector axisymmetricly is set on middle one side, and the symmetric part of matrix end of connector bottom two sets the anti-of asymmetric biasing respectively
Wave, vibration proof detuning pendulum, the detuning pendulum is flexible structure；The six divisions detuning pendulum anti-dance damping conductor spacer is arranged on compact
On overhead transmission line, because its underpart is provided with two asymmetric Anti-gallopings, vibration proof detuning pendulum, transmission line of electricity six can be changed
The torsional rigidity and torsional inertia parameter of split conductor system, reduce the torsional oscillation of power transmission line.Publication number：CN101944713A, it is public
A kind of Split conductor anti-galloping device has been opened, including：Support, wire clamp, cylinder, spring and weighted spherical ball, it is characterised in that the branch
Cylinder is set on frame, and cylinder interior has spring and weighted spherical ball, and spring one end is connected with weighted spherical ball, and the spring other end connects with cylinder
Connect；The present invention uses spring mass system energy dissipating to be waved to slow down；Rotatably set using wire clamp so that split conductor is every
It can be automatically adjusted after root wire icing, its icing equilibrium is waved to eliminate, this anti-dance device is to reducing vertical vibration effect
Preferably, optimum efficiency can not be reached for reducing horizontal vibration and twisting vibration.Publication number：CN103701079A, disclose one
Kind viscoelastic damping anti-dance device, including：Yoke plate, upper end cover and bottom end cover, piston, piston rod, damping ring and ballast part, in upper end
In the rectangular enclosure that lid and bottom end cover are formed, provided with damping ring and piston, one end of piston rod be located at shell it is interior and with piston phase
Affixed, its other end is through shell bottom and is provided with ballast part；When transmission line of electricity is waved, ballast part produces corresponding
Inertial impact force, there is certain damping effect, still, damping ring and ballast part can be waved together with transmission pressure, therefore, lead to
Overdamp annular strain consumption vibrational energy is smaller, and energy is waved in reduction can not reach optimum efficiency.Publication number：
CN201054486Y, a kind of split conductor anti-dance device is disclosed, including：Conductor spacer, swing rod and pendulum, the pendulum are arranged at
Anti-dance device lower end, using pendulum because inertia to wire swaying direction reverse motions, to offset oscillatory forces, and do not produce centrifugation
Power and effectively reduce and wave frequency and amplitude is waved in reduction；This anti-dance device is preferable for horizontal vibration effectiveness in vibration suppression, and for hanging down
Straight vibration effectiveness in vibration suppression can not reach optimum efficiency.These anti-dance devices, although all there is certain vibration-damping function, for both
There is horizontal vibration, the complex vibration for having vertical vibration and twisting vibration again, it is impossible to reach optimal effectiveness in vibration suppression.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of two parallel wielded-proof device of overhead transmission line and
Application method, horizontal vibration, vertical vibration, twisting vibration and tilt and vibration can be reduced, and optimal effectiveness in vibration suppression can be reached,
Conductor galloping is prevented, prevents wire fatigue fracture, prevents that electric tower from being tilted or collapse accident, guarantee overhead transmission line are kept the safety in production
Operation.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of two parallel wielded-proof device of overhead transmission line, including wire clamp, stove bolt, loop isolation stall, short connecting rod,
Resonance pendulum shock absorber, Parametrical excitation pendulum shock absorber, wire clamp one end are secured on transmission pressure, and the other end is equal by stove bolt
Cloth is secured on loop isolation stall, and quantity and the power transmission line quantity of wire clamp match；Uniform several of loop isolation stall lead to
Hole, loop isolation stall bottom set two short connecting rods, and the angles of two short connecting rods is α, and the axis of symmetry of short connecting rod
By the loop isolation stall center of circle, the loop isolation stall center of circle is also split conductor center, short connecting rod bottom and resonance pendulum shock absorber
Connection, the swinging center of resonance pendulum shock absorber and split conductor center are concentric, and resonance pendulum shock absorber is around split conductor center
Swing back and forth, absorb the vibrational energy of transmission pressure, reduce the vibration of transmission pressure.
Described resonance pendulum shock absorber includes king-bolt, connection sheet, cover plate, short circular arc pipeline, anti-icing fluid, steel ball, antifreeze
Liquid and steel ball are arranged on short circular arc inner cavity of pipe, and short circular arc pipe ends pass through cover plate for sealing, connection sheet one end and short arc tube
Road top is fixedly connected, and the other end is affixed by king-bolt and short connecting rod.
Also include Parametrical excitation pendulum shock absorber, Parametrical excitation pendulum shock absorber is fixedly connected on resonance pendulum shock absorber bottom, joined
The swinging center of the swinging center and resonance pendulum shock absorber of number exciting pendulum shock absorber is concentric.
Described Parametrical excitation pendulum shock absorber includes long connecting rod, long circular arc pipeline, cover plate, anti-icing fluid, steel ball, anti-icing fluid
Long circular arc inner cavity of pipe is arranged on steel ball, long circular arc pipe ends are subtracted by cover plate for sealing, long connecting rod one end with resonance pendulum
The device bottom that shakes is fixedly connected, and the other end and long circular arc pipeline are affixed；The angle of two root long connecting rods is α, and two root long connecting rods
Symmetry axis and two short connecting rods symmetrical overlapping of axles.
The radius of curvature R of described short circular arc pipeline1Determined using linear oscillator rationale Galloping of Overhead Transmission Line frequency,
Formula is as follows：
：
Work as wIt is solid altogether=wIt is horizontal=wLead danceWhen, resonance pendulum shock absorber reduces horizontal vibration to the vibration energy absorption of horizontal direction,
Prevent transmission pressure level from waving；
∴
In formula (1)-formula (3), wIt is solid altogetherFor the intrinsic frequency of resonance pendulum shock absorber；wIt is horizontalFrequency is waved for the level of transmission pressure
Rate；wLead danceFrequency is waved for transmission pressure；R1For short circular arc pipeline bending radius, the center of circle and split conductor center superposition.
The radius of curvature R of described long circular arc pipeline2It is true according to Galloping of Overhead Transmission Line frequency using the theory of nonlinear oscillation
Fixed, formula is as follows：
：
WhenWhen, Parametrical excitation puts the vibrational energy of shock absorber vertical direction, to Vertical Vibrating
It is dynamic to carry out vibration damping, prevent transmission pressure from vertically waving；
∴
∴R2=4R1 (7)
In formula (4)-formula (7), wGinseng is solidThe intrinsic frequency of shock absorber is put for Parametrical excitation；R2For long circular arc pipe bending radius,
The center of circle and split conductor center superposition.
A kind of application method of the two parallel wielded-proof device of overhead transmission line, resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber
An entirety is formed with transmission pressure, and vertically downward below transmission pressure, is transmitted electricity by deadweight and steel ball weave control
Wire reverses, and reduces transmission pressure torsional oscillation：
When transmission pressure is horizontal vibration, the steel ball in resonance pendulum shock absorber rolls along short circular arc pipeline, absorbs water
Square to vibrational energy, make transmission pressure horizontal direction vibration reduce, that is, resonance pendulum shock absorber reduce transmission pressure water
Square to vibration, prevent transmission pressure horizontal direction from waving；
When transmission pressure is vertical vibration, the steel ball in Parametrical excitation pendulum shock absorber rolls along long circular arc pipeline
It is dynamic, the vibrational energy of vertical direction is absorbed, reduces transmission pressure vertical vibration, that is, Parametrical excitation pendulum shock absorber subtracts
The vibration of small transmission pressure vertical direction, prevents transmission pressure vertical direction from waving；
When transmission pressure vibrates along incline direction, incline direction vibration decomposition horizontally vibrates and vertical direction
Vibration, resonance pendulum shock absorber reduces the vibration of horizontal direction, and Parametrical excitation pendulum shock absorber reduces the vibration of vertical direction, so
Transmission pressure tilt and vibration will reduce, and prevent transmission pressure incline direction from waving.
Compared with prior art, the beneficial effects of the invention are as follows：
It is simple in construction, easy to use.Resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber are joined to together, and formation one is whole
Body formula two parallel wielded-proof device, while vibration damping is carried out to horizontal vibration, vertical vibration and tilt and vibration.It is any transmission pressure can be reduced
Direction vibrates, and prevents transmission pressure from significantly brandishing occurs, avoids transmission pressure fatigue fracture, avoids electric tower from tilting
Collapse, cause line fault, ensure transmission line of electricity production safety.Anti-icing fluid can reduce the rolling friction of steel ball, while can also prevent
Only winter steel ball freezes viscous glutinous with short circular arc inner-walls of duct, influences to roll absorption energy, influences effectiveness in vibration suppression.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is the front view of loop isolation stall.
Fig. 4 is the side view of loop isolation stall.
Fig. 5 is the structural representation of resonance pendulum shock absorber.
Fig. 6 is the front view of long connecting rod.
Fig. 7 is the side view of long connecting rod.
Fig. 8 is the structural representation of Parametrical excitation pendulum shock absorber.
In figure：The short connecting rod 7- of 1- wire clamp 2- stove bolt 3- anti-icing fluid 4- steel ball 5- loop isolation stalls 6- are big
The short circular arc pipelines of the long circular arc pipeline 10- connection sheets 11- cover plates 12- of the long connecting rod 9- of bolt 8-.
Embodiment
The present invention is described in detail with reference to Figure of description, it should be noted that the implementation of the present invention is unlimited
In following embodiment.
See Fig. 1, Fig. 2, a kind of two parallel wielded-proof device of overhead transmission line, including wire clamp 1, stove bolt 2, annular isolation
Circle 5, short connecting rod 6, resonance pendulum shock absorber, Parametrical excitation pendulum shock absorber, the one end of wire clamp 1 are secured on transmission pressure, separately
One end is uniformly secured on loop isolation stall 5 by stove bolt 2, and quantity and the power transmission line quantity of wire clamp 1 match；See figure
3rd, Fig. 4, several the uniform through holes of loop isolation stall 5, through hole number are determined that the external diameter of loop isolation stall 5 is by transmission pressure quantity
φ 300~φ 1500mm, internal diameter are φ 250~φ 1300mm, and thickness is 10~30mm, the through-hole diameter on loop isolation stall 5
For 6~φ of φ 26mm；The bottom of loop isolation stall 5 sets two short connecting rod 6, and short connecting rod 6 can be integrated with loop isolation stall 5
Formula structure；The angle of two short connecting rod 6 is α, and α is 20 °~120 °, and the axis of symmetry of short connecting rod 6 passes through annular isolation
5 centers of circle are enclosed, the center of circle of loop isolation stall 5 is also that (split conductor center is formed by summit of transmission pressure at split conductor center
Polygon center), the short bottom of connecting rod 6 is connected with resonance pendulum shock absorber, the swinging center and split conductor of resonance pendulum shock absorber
Center is concentric, and resonance pendulum shock absorber swings back and forth around split conductor center, absorbs the vibrational energy of transmission pressure, reduces defeated
The vibration of electric lead.Wherein, the material of wire clamp 1 is insulation aluminum alloy wire clamp, and specification aperture is 20~φ of φ 50mm；Stove bolt
2 nominal diameters are 4~φ of φ 24mm.The short cross section of connecting rod 6 is rectangle, section rectangle a length of 30~100mm, a width of 10~
30mm, short 6 a length of 100~500mm of connecting rod；The lower end of each short connecting rod 6 sets a rectangle square groove and two groups of through holes, side
Groove is to socket connection piece 10, and for through hole to connecting bolt, through hole can be 1-3, the resonance pendulum vibration damping after convenient regulation installation
Device length；The material of loop isolation stall 5 is made using insulation aluminum alloy.
See Fig. 5, resonance pendulum shock absorber includes king-bolt 7, connection sheet 10, cover plate 11, short circular arc pipeline 12, anti-icing fluid 3, steel
Ball 4, anti-icing fluid 3 and steel ball 4 are arranged on the short inner chamber of circular arc pipeline 12, and the short both ends of circular arc pipeline 12 are sealed by cover plate 11, connection
The one end of piece 10 is fixedly connected with the short top of circular arc pipeline 12, and the other end is affixed by king-bolt 7 and short connecting rod 6.
See Fig. 1, Fig. 2, Parametrical excitation pendulum shock absorber is fixedly connected on resonance pendulum shock absorber bottom, Parametrical excitation pendulum shock absorber
Swinging center and resonance pendulum shock absorber swinging center it is concentric.
See Fig. 6-Fig. 8, runout shock absorber includes long connecting rod 8, long circular arc pipeline 9, cover plate 11, anti-icing fluid 3, steel ball 4, prevents
Freeze liquid 3 and steel ball 4 is arranged on the long inner chamber of circular arc pipeline 9, the long both ends of circular arc pipeline 9 are sealed by cover plate 11, long one end of connecting rod 8
It is fixedly connected with resonance pendulum shock absorber bottom, the other end and long circular arc pipeline 9 are affixed；The angle of two root long connecting rods 8 is α, and α is
20 °~120 °, and the symmetrical overlapping of axles of the symmetry axis of two root long connecting rods 8 and two short connecting rod 6.The long center of circle of circular arc pipeline 9
With split conductor center superposition.
See Fig. 5, when specifically making, anti-icing fluid 3 and steel ball 4 are loaded inner chamber from short one end of circular arc pipeline 12；Connection sheet 10
Made, welded with short circular arc pipeline 12 integral by insulation aluminum alloy；A length of 50~100mm of connection sheet 10, a width of 30~
100mm, thickness are 4~15mm；Anti-icing fluid 3 uses the preferable liquid of antifreezing effect, and when filling, anti-icing fluid 3 can not flood steel
Ball 4；Steel ball 4 in long circular arc pipeline 9 also encapsulates as stated above.The material of steel ball 4 uses stainless steel, is solid steel ball 4, diameter
For φ 10~φ 100mm, the diameter of steel ball 4 is less than the short internal diameter of circular arc pipeline 12, and the diameter of steel ball 4 is more than the short internal diameter of circular arc pipeline 12
With the difference of the diameter of steel ball 4, prevent that steel ball 4 is overlapping, influence steel ball 4 and roll；The number of steel ball 4 be 1~30, along circular arc pipeline into
A line is arranged；Cover plate 11 and short 12 seamless welding of circular arc pipeline, close the short inner chamber of circular arc pipeline 12, prevent outside anti-icing fluid 3
Leakage, prevents steel ball 4 from rolling out；Cover plate 11 makes of aluminium alloy, and thickness is 5~10mm, a diameter of 20~φ of φ 150mm；Short arc tube
Road 12 is made using aluminium alloy, and wall thickness is 3~10mm, and outer diameter tube is 20~φ of φ 150mm.On the top of short circular arc pipeline 12
And bottom, two connection sheets 10 are respectively welded, the direction of two connection sheets 10 on top is connected by split conductor center, following two
The direction of contact pin 10 is also by split conductor center；Two connection sheets 10 on the short top of circular arc pipeline 12 are inserted short connection respectively
In the rectangle square groove of the lower end of bar 6, and they are fixed together with two groups of king-bolts 7；The two of the short bottom of circular arc pipeline 12
Individual connection sheet 10, insert respectively in the rectangle square groove of the long upper end of connecting rod 8, and they are fixed in one with two groups of king-bolts 7
Rise；The nominal diameter of king-bolt 7 is 6~φ of φ 24mm.See Fig. 1, Fig. 8.
See Fig. 6, Fig. 7, the long both ends of connecting rod 8 are provided with rectangle square groove, one end two groups of threaded fastener king-bolts 7 and short circle
The connection sheet 10 of the lower section of arc pipeline 12 is fixed together, the other end two groups of king-bolts 7 and the connection sheet of the long top of circular arc pipeline 9
10 are fixed together；The long cross section of connecting rod 8 is rectangle, and section rectangle a length of 30~100mm, a width of 10~30mm are long to connect
815 a length of 300~1500mm of bar.
The radius of curvature R of short circular arc pipeline 121Determined using linear oscillator rationale Galloping of Overhead Transmission Line frequency, formula
It is as follows：
：
Work as wIt is solid altogether=wIt is horizontal=wLead danceWhen, resonance pendulum shock absorber reduces horizontal vibration to the vibration energy absorption of horizontal direction,
Prevent transmission pressure level from waving；
∴
In formula (1)-formula (3), wIt is solid altogetherFor the intrinsic frequency of resonance pendulum shock absorber；wIt is horizontalFrequency is waved for the level of transmission pressure
Rate；wLead danceFrequency is waved for transmission pressure；R1For the short bending radius of circular arc pipeline 12, the center of circle and split conductor center superposition；
The radius of curvature R of long circular arc pipeline 92Determined using the theory of nonlinear oscillation according to Galloping of Overhead Transmission Line frequency, it is public
Formula is as follows：
：
WhenWhen, Parametrical excitation puts the vibrational energy of shock absorber vertical direction, to Vertical Vibrating
It is dynamic to carry out vibration damping, prevent transmission pressure from vertically waving.
∴
∴R2=4R1 (7)
In formula (4)-formula (7), wGinseng is solidThe intrinsic frequency of shock absorber is put for Parametrical excitation；R2For long circular arc pipeline 9 bending half
Footpath, the center of circle and split conductor center superposition.
Wherein, wLead danceArea and transmission pressure deployment scenarios according to where transmission pressure determine.During value, preferably R2=
4R1
In binary fission wire, loop isolation stall 5 is replaced with a strip spacer rod, and now, split conductor center is just
It is spacer rod point midway.
The application method of the two parallel wielded-proof device of overhead transmission line, resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber with it is defeated
Electric lead forms an entirety, and vertically downward below transmission pressure, passes through deadweight and the weave control transmission pressure of steel ball 4
Reverse, reduce transmission pressure torsional oscillation：
When transmission pressure is horizontal vibration, the steel ball 4 in resonance pendulum shock absorber rolls along short circular arc pipeline 12, absorbs
The vibrational energy of horizontal direction, reduce the vibration of transmission pressure horizontal direction, that is, resonance pendulum shock absorber reduces transmission pressure
The vibration of horizontal direction, prevent transmission pressure horizontal direction from waving；
When transmission pressure is vertical vibration, the steel ball 4 in Parametrical excitation pendulum shock absorber is along long circular arc pipeline 9
Roll, absorb the vibrational energy of vertical direction, reduce transmission pressure vertical vibration, that is, Parametrical excitation pendulum shock absorber
Reduce the vibration of transmission pressure vertical direction, prevent transmission pressure vertical direction from waving；
When transmission pressure vibrates along incline direction, incline direction vibration decomposition horizontally vibrates and vertical direction
Vibration, resonance pendulum shock absorber reduces the vibration of horizontal direction, and Parametrical excitation pendulum shock absorber reduces the vibration of vertical direction, so
Transmission pressure tilt and vibration will reduce, and prevent transmission pressure incline direction from waving.
The present invention is simple in construction, easy to use.Resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber are joined to together, are formed
One monoblock type two parallel wielded-proof device, while vibration damping is carried out to horizontal vibration, vertical vibration and tilt and vibration.Transmission of electricity can be reduced to lead
Line any direction vibrates, and prevents transmission pressure from significantly brandishing occurs, avoids transmission pressure fatigue fracture, avoid electric tower from inclining
Ramp down is collapsed, and causes line fault, ensures transmission line of electricity production safety.Anti-icing fluid can reduce the rolling friction of steel ball, while also may be used
It is viscous glutinous to prevent winter steel ball and short circular arc inner-walls of duct from freezing, influence to roll absorption energy, influence effectiveness in vibration suppression.
Claims (6)
1. a kind of two parallel wielded-proof device of overhead transmission line, including wire clamp, stove bolt, loop isolation stall, short connecting rod, altogether
Runout shock absorber, Parametrical excitation pendulum shock absorber, wire clamp one end are secured on transmission pressure, and the other end is uniform by stove bolt
It is secured on loop isolation stall, quantity and the power transmission line quantity of wire clamp match；Several uniform through holes of loop isolation stall,
Loop isolation stall bottom sets two short connecting rods, and the angle of two short connecting rods is α, and the axis of symmetry of short connecting rod passes through
The loop isolation stall center of circle, the loop isolation stall center of circle are also split conductor center, and short connecting rod bottom is connected with resonance pendulum shock absorber,
The swinging center of resonance pendulum shock absorber and split conductor center are concentric, and resonance pendulum shock absorber carrys out backswing around split conductor center
It is dynamic, the vibrational energy of transmission pressure is absorbed, reduces the vibration of transmission pressure；
Characterized in that, described resonance pendulum shock absorber includes king-bolt, connection sheet, cover plate, short circular arc pipeline, anti-icing fluid, steel
Ball, anti-icing fluid and steel ball are arranged on short circular arc inner cavity of pipe, short circular arc pipe ends by cover plate for sealing, connection sheet one end with it is short
Circular arc conduit upper is fixedly connected, and the other end is affixed by king-bolt and short connecting rod.
2. the two parallel wielded-proof device of a kind of overhead transmission line according to claim 1, it is characterised in that also swash including parameter
Runout shock absorber, Parametrical excitation pendulum shock absorber are fixedly connected on resonance pendulum shock absorber bottom, and Parametrical excitation puts the swing of shock absorber
Axle center and the swinging center of resonance pendulum shock absorber are concentric.
3. the two parallel wielded-proof device of a kind of overhead transmission line according to claim 2, it is characterised in that described parameter swashs
Runout shock absorber includes long connecting rod, long circular arc pipeline, cover plate, anti-icing fluid, steel ball, and anti-icing fluid and steel ball are arranged on long arc tube
Road inner chamber, by cover plate for sealing, long connecting rod one end is fixedly connected long circular arc pipe ends with resonance pendulum shock absorber bottom, another
End is affixed with long circular arc pipeline；The angle of two root long connecting rods is α, and the symmetry axis of two root long connecting rods and two short connecting rods
Symmetrical overlapping of axles.
A kind of 4. two parallel wielded-proof device of overhead transmission line according to claim 1, it is characterised in that described short circular arc
The radius of curvature R of pipeline1Determined using linear oscillator rationale Galloping of Overhead Transmission Line frequency, formula is as follows：
：
Work as wIt is solid altogether=wIt is horizontal=wLead danceWhen, resonance pendulum shock absorber reduces horizontal vibration, prevented to the vibration energy absorption of horizontal direction
Transmission pressure level is waved；
∴
In formula (1)-formula (3), wIt is solid altogetherFor the intrinsic frequency of resonance pendulum shock absorber；wIt is horizontalFrequency is waved for the level of transmission pressure；wLead dance
Frequency is waved for transmission pressure；R1For short circular arc pipeline bending radius, the center of circle and split conductor center superposition.
A kind of 5. two parallel wielded-proof device of overhead transmission line according to claim 3, it is characterised in that described long circular arc
The radius of curvature R of pipeline2Determined using the theory of nonlinear oscillation according to Galloping of Overhead Transmission Line frequency, formula is as follows：
：
WhenWhen, Parametrical excitation puts the vibrational energy of shock absorber vertical direction, and vertical vibration is entered
Row vibration damping, prevents transmission pressure from vertically waving；
∴
∴R2=4R1 (7)
In formula (4)-formula (7), wGinseng is solidThe intrinsic frequency of shock absorber is put for Parametrical excitation；R2For long circular arc pipe bending radius, the center of circle
With split conductor center superposition.
6. a kind of application method of the two parallel wielded-proof device of overhead transmission line according to claim 1-5 any one, its
It is characterised by, resonance pendulum shock absorber and Parametrical excitation pendulum shock absorber form an entirety with transmission pressure, and are located at vertically downward
Below transmission pressure, reversed by deadweight and steel ball weave control transmission pressure, reduce transmission pressure torsional oscillation：
When transmission pressure is horizontal vibration, the steel ball in resonance pendulum shock absorber rolls along short circular arc pipeline, absorbs level side
To vibrational energy, reduce the vibration of transmission pressure horizontal direction, that is, resonance pendulum shock absorber reduces transmission pressure level side
To vibration, prevent transmission pressure horizontal direction from waving；
When transmission pressure is vertical vibration, the steel ball in Parametrical excitation pendulum shock absorber rolls along long circular arc pipeline,
The vibrational energy of vertical direction is absorbed, reduces transmission pressure vertical vibration, that is, Parametrical excitation pendulum shock absorber reduces
The vibration of transmission pressure vertical direction, prevent transmission pressure vertical direction from waving；
When transmission pressure vibrates along incline direction, incline direction vibration decomposition horizontally vibrates to shake with vertical direction
Dynamic, resonance pendulum shock absorber reduces the vibration of horizontal direction, and Parametrical excitation pendulum shock absorber reduces the vibration of vertical direction, so defeated
Electric lead tilt and vibration will reduce, and prevent transmission pressure incline direction from waving.
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| CN106760468A (en) * | 2017-03-06 | 2017-05-31 | 辽宁科技大学 | The suspension platform that a kind of construction site uses |
| CN107069626B (en) * | 2017-04-20 | 2019-02-15 | 广东电网有限责任公司电力科学研究院 | A kind of frequency-adjustable energy by collision conductor spacer |
| CN107994527B (en) * | 2017-11-14 | 2019-12-24 | 东莞市开关厂有限公司 | High-voltage electric tower wire insulation buffer device |
| CN108233310B (en) * | 2018-03-15 | 2024-04-19 | 山东大学 | Anti-galloping vibration reduction spacer |
| CN108448520A (en) * | 2018-03-30 | 2018-08-24 | 江西电力职业技术学院 | Overhead transmission line six-multiple conductor locking equipment |
| CN108599069A (en) * | 2018-03-30 | 2018-09-28 | 江西电力职业技术学院 | Overhead transmission line six-multiple conductor locking equipment |
| CN108877424B (en) * | 2018-08-20 | 2021-03-02 | 陕西师范大学 | Composite pendulum for demonstrating chaos phenomenon by using high-temperature superconducting principle and manufacturing method thereof |
| JP6913863B2 (en) * | 2019-03-28 | 2021-08-04 | 路人 増永 | container |
| CN111414689B (en) * | 2020-03-18 | 2023-04-11 | 中国能源建设集团湖南省电力设计院有限公司 | Simplified model and calculation method for asynchronous swing of overhead line erection heterogeneous conductor |
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| JP2005341689A (en) * | 2004-05-26 | 2005-12-08 | Nippon Telegr & Teleph Corp <Ntt> | Control tool for dancing of cable |
| CN201054486Y (en) * | 2007-04-23 | 2008-04-30 | 李建国 | Throw-protector for split lead |
| CN101702503A (en) * | 2009-11-03 | 2010-05-05 | 四川电力试验研究院 | Multi-fission transmission lead torsional vibration swing-preventing device |
| CN101944713B (en) * | 2010-07-22 | 2012-07-04 | 重庆大学 | Split conductor anti-galloping device |
| CN202917920U (en) * | 2012-08-17 | 2013-05-01 | 四平线路器材厂 | Damping type anti-galloping device |
| CN204928047U (en) * | 2015-09-23 | 2015-12-30 | 国网浙江省电力公司台州供电公司 | Overhead transmission line prevents waving device |
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