CN106015438A - Magnetorheological damper and power transmission line anti-vibration device and anti-vibration method using same - Google Patents
Magnetorheological damper and power transmission line anti-vibration device and anti-vibration method using same Download PDFInfo
- Publication number
- CN106015438A CN106015438A CN201610570505.0A CN201610570505A CN106015438A CN 106015438 A CN106015438 A CN 106015438A CN 201610570505 A CN201610570505 A CN 201610570505A CN 106015438 A CN106015438 A CN 106015438A
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- China
- Prior art keywords
- damper
- vibration
- socket
- transmission line
- cylinder body
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a socket clevis magnetorheological damper. The socket clevis magnetorheological damper comprises a cylinder body and a socket seat A connected above the cylinder body. A coil and a piston are arranged in the cylinder body. The space among the coil, the cylinder body and the piston is full of magnetorheological fluid. A shielding cover is arranged outside the cylinder body. When the magnetorheological damper is applied to a power transmission line anti-vibration device, the problems that an existing damper is simplex in anti-vibration frequency and not variable in damping are solved. The invention further discloses the power transmission line anti-vibration device using the socket clevis magnetorheological damper. The power transmission line anti-vibration device comprises a wire vibration collecting unit, a socket clevis magnetorheological damper adjustment unit and the socket clevis magnetorheological damper which are connected in sequence. The invention further discloses a power transmission line anti-vibration method. The power transmission line anti-vibration method specially includes the steps that a device system is initialized; the wire vibration collecting unit collects the vibration amplitude value and the frequency value and sends the data; a magnetorheological damper controller receives the wire vibration amplitude value and the frequency value and enables a current control circuit to work; and the adjustment function is realized, and therefore vibration is prevented.
Description
Technical field
The invention belongs to power transmission and transformation equipment state monitoring field, relate to a kind of MR damper, specifically relate to
And one socket-clevis eye MR damper, the invention still further relates to utilize the power transmission line of this MR damper
Antihunting device, the invention still further relates to the transmission line of electricity vibration isolation method utilizing this power transmission line antihunting device to carry out.
Background technology
To produce aeolian vibration under transmission line of electricity wind action in the wild, long aeolian vibration will make to lead
The life-span of line seriously reduces, and causes gold utensil to come off, wire fatigue breaks the harm such as stock, and then jeopardizes power train
That unites is properly functioning.For weakening and eliminating transmission line wire periodic vibration under mild wind effect, logical
Normal way is to install damper on wire additional.Traditional damper is by one section of shorter steel strand wires and two
Hold the weight installed and the clamping plate composition that can hang on wire, when wire produces vibration, damper
The weight at steel strand wires two ends the most constantly teetertotters, and consumes, with this, the vibrational energy transmitted from wire and drops
Low wire amplitude, thus eliminate and weaken the harm that wire is caused by aeolian vibration.
Traditional damper owing to being affected by two ends weight quality, shaking outside easily occurring resonant frequency
Dynamic frequency produces the under powered situation of vibrationproof, and typically also needs to the wind according to location residing for circuit
Speed, weather and geographical conditions combine the damping capacity curve of wire and to select suitably to prevent for transmission line of electricity
Vibration hammer, when one of them factor changes, damper cannot fully effective work.
Summary of the invention
It is an object of the invention to provide a kind of socket-clevis eye MR damper, it is possible to preventing for power transmission line
In vibrating device, solve existing damper anti-vibration frequency single, damp immutable problem.
The technical solution adopted in the present invention is, a kind of socket-clevis eye MR damper, including cylinder body and
Be connected to the bowl headstock A above cylinder body, cylinder body be internally provided with coil and piston, coil, cylinder body with
Piston space is full of magnetic flow liquid, is provided with radome outside cylinder body.
The feature of the present invention also resides in,
Rubber blanket it is respectively fixed at two ends with up and down in the inside of cylinder body.
An electric source line interface it is provided with in the side of cylinder body.
It is a further object of the present invention to provide apply this socket-clevis eye MR damper power transmission line prevent
Vibrating device.
Another technical scheme of the present invention is, a kind of transmission of electricity that make use of this socket-clevis eye MR damper
Circuit socket-clevis eye antihunting device, it is characterised in that the conductor vibration collecting unit that includes being sequentially connected with,
Socket-clevis eye MR damper regulation unit and socket-clevis eye MR damper.
Inventive feature also resides in,
Socket-clevis eye MR damper regulation unit includes by holding wire interconnective magnetic current variable resistance
Buddhist nun's device controller and MR damper power supply, be connected above a bowl headstock at MR damper controller
B, connects in the lower section of MR damper power supply and has ball-eye B.
Conductor vibration collecting unit is connected by ZigBee signal with MR damper controller, bowl head
Link plate MR damper is connected by power line with MR damper power supply by power line.
The socket-clevis eye MR damper regulation unit ball by second bowl of headstock with insulator chain lower end
Bulb hanging ring connects together, and lower end is by the bowl headstock of ball-eye with socket-clevis eye MR damper upper end
A is connected.
Socket-clevis eye MR damper lower end is tightly buckled in by the follower bolt of clasp with suspension clamp
Together.
It is a further object of the present invention to provide the power transmission line vibration isolation method utilizing above-mentioned antihunting device to carry out.
Another technical scheme of the present invention is, bowl head hanging plate for transmission line antihunting device based on magnetic damping enters
The vibration isolation method of row, it is characterised in that specifically implement according to following steps:
Step 1, apparatus system initializes,
Step 2, conductor vibration collecting unit gathers amplitude and frequency values and sends data.
Step 3, MR damper controller receives wire amplitude and frequency values,
Step 4, MR damper controller makes current control circuit work, and reaches the effect of regulation,
Thus prevent vibration.
The feature of the present invention also resides in,
Conductor vibration collecting unit in step 2 is arranged on the wire at wire clamp outlet 89mm, real
Time gather the amplitude of conductor vibration and frequency, and by ZigBee wireless module, the data collected are beaten
Bag sends；MR damper controller in step 3 receives conductor vibration by ZigBee and adopts
The data that collection unit sends out.
The invention has the beneficial effects as follows, transmission line of electricity aeolian vibration monitoring is combined with elimination, utilize
The special material behavior of magnetic flow liquid reaches to weaken in real time and eliminate the purpose of wire aeolian vibration harm.
When wire generation aeolian vibration, device can utilize its variable characteristic of damping quickly to absorb shaking of wire
Energy, makes wire return to steady statue in very short time.
Accompanying drawing explanation
Fig. 1 is the structural representation of the socket-clevis eye MR damper of the present invention；
Fig. 2 is that the overall structure of the bowl head hanging plate for transmission line antihunting device based on magnetic damping of the present invention is shown
It is intended to；
Fig. 3 be the present invention bowl head hanging plate for transmission line antihunting device based on magnetic damping in socket-clevis eye magnetic
The structural representation of rheological damper control unit；
Fig. 4 is that the overall structure of the bowl head hanging plate for transmission line antihunting device based on magnetic damping of the present invention is shown
It is intended to；
Fig. 5 is the monitoring method of the bowl head hanging plate for transmission line antihunting device based on magnetic damping of the present invention
Flow chart.
In figure, 1. conductor vibration collecting unit, 2. socket-clevis eye MR damper regulation unit, 2-1.
Holding wire, 2-2. power line, 3. MR damper power supply, 4. MR damper controller, 5. bowl head
Link plate MR damper, 6. cylinder body, 7. coil, 8. piston, 9. bowl headstock A, 9-1. bowl headstock B,
10. clasp, 11. magnetic flow liquids, 12. radomes, 13. rubber blankets, 14. electric source line interfaces, 15. bulbs are hung
Ring, 16 insulator chains, 17. suspension clamps.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
A kind of socket-clevis eye MR damper, as it is shown in figure 1, include cylinder body 6 and be connected to cylinder body 6
Top bowl headstock A9, cylinder body 6 be internally provided with coil 7 and piston 8, coil 7 is around in cylinder body 6
In embedded groove, it is full of magnetic flow liquid 11 between coil 7, cylinder body 6 and piston 8, in cylinder body 6
Portion is respectively fixed at two ends with rubber blanket 13 up and down, when preventing amplitude excessive piston touch cylinder body top and
Bottom,
Being provided with radome 12 outside cylinder body 6, the effect of radome 12 is to prevent power transmission line surrounding magnetic field
Magnetic flow liquid is produced interference.
The lower end of piston 8 connects clasp 10, and clasp 10 connects for fixing with suspension clamp.
An electric source line interface 14 it is provided with, for the connection of power line Yu power supply in the side of cylinder body 6.
Socket-clevis eye MR damper 5 is the most cylindrical, and its bottom surface diameter of section 10cm, cylinder body is long
Degree 25cm, maximum tension length 15cm, maximum compression length 15cm, cylinder body and piston tensile strength are big, full
Foot related specifications requirement.
A kind of bowl head hanging plate for transmission line that make use of above-mentioned socket-clevis eye MR damper of the present invention is prevented
Vibrating device, as in figure 2 it is shown, include conductor vibration collecting unit 1, the socket-clevis eye magnetic current being sequentially connected with
Mutative damp device regulation unit 2 and socket-clevis eye MR damper 5；
Wherein, socket-clevis eye MR damper regulation unit 2 includes being connected with each other by holding wire 2-1
MR damper controller 4 and MR damper power supply 3, at MR damper controller 4
Being connected above a bowl headstock B9-1, connecting in the lower section of MR damper power supply 3 has ball-eye B15,
MR damper power supply 3 is connected with socket-clevis eye MR damper 5 by power line.
Conductor vibration collecting unit 1 is connected by ZigBee signal with MR damper controller 4, bowl
Head link plate MR damper 5 is by power line with MR damper power supply 3 by power line 2-2 even
Connect.Power line 2-2 is by being connected with MR damper power supply 3 with electric source line interface 14.
Socket-clevis eye MR damper 5 upper end hangs on socket-clevis eye magnetic current variable resistance by bowl headstock A9
On the ball-eye B15 of Buddhist nun's device control unit 2 lower end,
As shown in Figure 4, conductor vibration collecting unit 1 is arranged on power transmission line；Wherein, socket-clevis eye magnetic
Rheological damper regulation unit 2 is by the ball-eye of second bowl of headstock 9-1 with insulator chain 16 lower end
Connecting together, lower end is by the bowl headstock of ball-eye 15 with socket-clevis eye MR damper 5 upper end
A9 is connected.
Socket-clevis eye MR damper 5 lower end is tight with the follower bolt of suspension clamp 17 by clasp 10
It is closely together.
The work process of apparatus of the present invention is, hang on wire away from wire clamp outlet 89mm place installation
Conductor vibration collecting unit 1 real-time online gathers amplitude and the frequency values of transmission pressure aeolian vibration, and leads to
Cross ZigBee to send data on MR damper controller.MR damper controller according to
Amplitude and frequency values size control corresponding current control circuit, and different current control circuits is by controlling
The break-make of related electronic devices makes MR damper power supply export the electric current varied in size.When magnetorheological
Damper controller receives, by ZigBee module, amplitude and the frequency that conductor vibration collecting unit sends out
During rate data, the current control circuit work corresponding with amplitude and frequency values can be controlled, make magnetorheological damping
Device power supply exports the optimal current value of size to the coil of MR damper.It is wrapped in when electric current flows through
During coil on socket-clevis eye MR damper cylinder body, the magnetic field that size is optimal can be produced on cylinder body,
The action of a magnetic field makes its viscosity B coefficent in magnetic flow liquid, and then affects the damping value of MR damper.
A kind of transmission of electricity utilizing above-mentioned bowl head hanging plate for transmission line antihunting device based on magnetic damping to carry out
Circuit vibration isolation method, as it is shown in figure 5, specifically implement according to following steps,
Step 1, apparatus system initializes,
Step 2, conductor vibration collecting unit gathers amplitude and frequency values and sends data,
Conductor vibration collecting unit is arranged on the wire at wire clamp outlet 89mm, Real-time Collection wire
The amplitude of vibration and frequency, and by ZigBee wireless module, the data collected are transmitted away.
Step 3, MR damper controller receives wire amplitude and frequency values,
MR damper controller receives, by ZigBee, the data that conductor vibration collecting unit sends out.
Step 4, MR damper controller makes current control circuit work, and reaches the effect of regulation,
Thus prevent vibration.
Specifically, it is that MR damper controller is come by current control circuit with regard to control method
MR damper power supply is controlled, makes MR damper power supply export sizeable electric current
Value.MR damper controller controls corresponding according to the amplitude received and frequency values with its internal processes
Current control circuit turn on, make MR damper power supply export sizeable electric current to bowl head
In link plate MR damper.
Step 5, waits that antivibrator works 1 minute, is then back to step 2.
When electric current flows through socket-clevis eye MR damper, it is being wound in socket-clevis eye MR damper cylinder
Magnetic field can be produced, the action of a magnetic field magnetic current in socket-clevis eye MR damper cylinder body on coil on body
Become liquid so that it is viscosity changes, so the socket-clevis eye magnetic current variable resistance when piston is with wire up-down vibration
Buddhist nun's device damping value will change, when the electric current of input is optimal size, and corresponding magnetic field and magnetorheological
The viscosity of liquid can reach optimal accordingly, makes weakening damping reach optimum, is conducive to quickly absorbing vibrational energy
Amount, makes wire return to plateau.Return to after socket-clevis eye MR damper works 1 minute
Gathering the amplitude after weakening and frequency values in step 2, damping adjusting value carries out weakening to conductor vibration again,
Move in circles successively.
This method is transmission line of electricity aeolian vibration monitoring to be combined with elimination, utilizes magnetic flow liquid special
Material behavior reach to weaken in real time and eliminate the purpose of wire aeolian vibration harm.Work as power line conductive
When line occurs aeolian vibration in various degree, this device can be made adjustment in time according to collection value, be made magnetic
The damping value that rheological damper output is optimal, absorbs the vibrational energy of wire so that it is can quickly recover to steady
Determine state.
Claims (10)
1. a socket-clevis eye MR damper, it is characterised in that include cylinder body (6) and be connected to
Cylinder body (6) top bowl headstock A (9), described cylinder body (6) be internally provided with coil (7)
With piston (8), between coil (7), cylinder body (6) and piston (8), it is full of magnetic flow liquid (11), institute
Cylinder body (6) outside stated is provided with radome (12).
Socket-clevis eye MR damper the most according to claim 1, it is characterised in that described
Rubber blanket (13) it is respectively fixed at two ends with up and down in the inside of cylinder body (6).
Socket-clevis eye MR damper the most according to claim 1, it is characterised in that described
The side of cylinder body (6) be provided with an electric source line interface (14).
4. the transmission line of electricity bowl head of the socket-clevis eye MR damper that a kind make use of described in claim 1
Link plate antihunting device, it is characterised in that include conductor vibration collecting unit (1), the bowl head being sequentially connected with
Link plate MR damper regulation unit (2) and socket-clevis eye MR damper (5).
Bowl head hanging plate for transmission line antihunting device based on magnetic damping the most according to claim 4, its
Being characterised by, described socket-clevis eye MR damper regulation unit (2) includes by holding wire (2-1)
Interconnective MR damper controller (4) and MR damper power supply (3), described
MR damper controller (4) is connected above a bowl headstock B (9-1), at described magnetorheological damping
The lower section of device power supply (3) connects ball-eye B (15).
Bowl head hanging plate for transmission line antihunting device based on magnetic damping the most according to claim 4, its
Being characterised by, described conductor vibration collecting unit (1) passes through with MR damper controller (4)
ZigBee signal connects, and described socket-clevis eye MR damper (5) passes through power line with magnetorheological
Antivibrator power supply (3) is connected by power line (2-2).
Bowl head hanging plate for transmission line antihunting device based on magnetic damping the most according to claim 4, its
Being characterised by, described socket-clevis eye MR damper regulation unit (2) is by second bowl of headstock (9-1)
Connecting together with the ball-eye of insulator chain (16) lower end, ball-eye (15) and bowl are passed through in lower end
Bowl headstock A (9) of head link plate MR damper (5) upper end is connected.
Bowl head hanging plate for transmission line antihunting device based on magnetic damping the most according to claim 4, its
Being characterised by, described socket-clevis eye MR damper (5) lower end is by clasp (10) and pendency
The follower bolt of wire clamp (17) is tightly buckled together.
9. the bowl head hanging plate for transmission line antihunting device based on magnetic damping utilized described in claim 4
The vibration isolation method carried out, it is characterised in that specifically implement according to following steps:
Step 1, apparatus system initializes,
Step 2, conductor vibration collecting unit gathers amplitude and frequency values and sends data.
Step 3, MR damper controller receives wire amplitude and frequency values,
Step 4, MR damper controller makes current control circuit work, and reaches the effect of regulation,
Thus prevent vibration.
Bowl head hanging plate for transmission line antihunting device based on magnetic damping the most according to claim 9
The vibration isolation method carried out, it is characterised in that
Conductor vibration collecting unit in described step 2 is arranged on the wire at wire clamp outlet 89mm
On, the amplitude of Real-time Collection conductor vibration and frequency, and will be collected by ZigBee wireless module
Data transmit away；
MR damper controller in described step 3 receives conductor vibration collection by ZigBee
The data that unit sends out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570505.0A CN106015438B (en) | 2016-07-19 | 2016-07-19 | MR damper and its power transmission line antihunting device and vibration isolation method of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570505.0A CN106015438B (en) | 2016-07-19 | 2016-07-19 | MR damper and its power transmission line antihunting device and vibration isolation method of application |
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| Publication Number | Publication Date |
|---|---|
| CN106015438A true CN106015438A (en) | 2016-10-12 |
| CN106015438B CN106015438B (en) | 2019-05-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069920A (en) * | 2017-06-16 | 2017-08-18 | 西安工程大学 | A kind of transmission line of electricity energy taking device based on piezoelectric and its take can method |
| CN107528279A (en) * | 2017-10-11 | 2017-12-29 | 广东电网有限责任公司电力科学研究院 | A kind of transmission line of electricity aeolian vibration electromagnetism vibrationproof gold utensil |
| CN111668790A (en) * | 2020-06-18 | 2020-09-15 | 中网电力科技有限公司 | Cable spacer for assisting in slowing down vibration of high-altitude cable |
| US11434972B2 (en) * | 2019-02-20 | 2022-09-06 | The Boeing Company | Passive lockable strut |
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| CN105041954A (en) * | 2015-07-19 | 2015-11-11 | 湖南城市学院 | Intelligent adjustable vibration reduction device |
| CN105443857A (en) * | 2015-12-13 | 2016-03-30 | 北京化工大学 | Variable-damping vibration attenuation and noise reduction device for valve |
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| JPS59184004A (en) * | 1983-03-31 | 1984-10-19 | Nhk Spring Co Ltd | Car height adjuster |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11434972B2 (en) * | 2019-02-20 | 2022-09-06 | The Boeing Company | Passive lockable strut |
| CN111668790A (en) * | 2020-06-18 | 2020-09-15 | 中网电力科技有限公司 | Cable spacer for assisting in slowing down vibration of high-altitude cable |
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| Publication number | Publication date |
|---|---|
| CN106015438B (en) | 2019-05-17 |
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