CN204376346U - Power line vibration damping - Google Patents
Power line vibration damping Download PDFInfo
- Publication number
- CN204376346U CN204376346U CN201520120724.XU CN201520120724U CN204376346U CN 204376346 U CN204376346 U CN 204376346U CN 201520120724 U CN201520120724 U CN 201520120724U CN 204376346 U CN204376346 U CN 204376346U
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- CN
- China
- Prior art keywords
- vibration damper
- damper bar
- connecting rod
- induction cylinder
- cable
- 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 - Fee Related
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Abstract
The present invention relates to a kind of power line vibration damping, this power line vibration damping mainly includes vibration damper bar, induction cylinder and connecting rod; Described link rotatable is set on a fixed rotating shaft, and this fixed rotating shaft is arranged on shaft tower; One end of described connecting rod ringwise adapter sleeve is located on cable, and the other end is fixedly connected with vibration damper bar; Described vibration damper bar is that permanent magnetic material is made, the magnetic field of this permanent magnetic material and the axis being parallel of vibration damper bar; The plane orthogonal at described vibration damper bar and described connecting rod and cable place; Be arranged with an induction cylinder respectively at the two ends of described vibration damper bar, each described induction cylinder is not exposed at the two ends of described vibration damper bar; Described vibration damper bar does not contact with each described induction cylinder; Each described induction cylinder is the coaxial closing coil of cluster, and each described induction cylinder is fixedly mounted on shaft tower; This power line vibration damping effectively can slow down the vibration that cable passes to shaft tower, effectively prevents shaft tower loosened screw; Reduce the wearing and tearing between cable and shaft tower simultaneously, extend the useful life of cable and shaft tower.
Description
Technical field
The present invention relates to a kind of power line fittings, especially, is a kind of power line vibration damping.
Background technology
For realizing efficient, easy long distance power transmission, comparatively conventional is use overhead wire at present; Overhead wire by shaft tower by cable support at certain altitude, thus realize aloft connect up; This wire laying mode can not affect the traffic on ground, simultaneously time saving and energy saving than cable is embedded in underground; Due to the heavier mass of cable itself, therefore need in certain span, build a shaft tower; Because erecting cable is in high-altitude, the wind-force in high-altitude is more powerful, cable swings back and forth under the action of the forces of the wind, this swing understands driven rod tower vibrations after being delivered to shaft tower, this vibration is by the screw that makes on shaft tower and screw generation relative displacement, long-term vibration will make the loosened screw on shaft tower, there is larger potential safety hazard; The swing of this outer cable also can aggravate the wearing and tearing of cable and shaft tower junction, and the useful life of cable is reduced greatly; When there is strong wind weather, cable easily ruptures at fray, cause danger.
Summary of the invention
For the problems referred to above, the invention provides a kind of power line vibration damping, this power line vibration damping effectively can slow down the vibration that cable passes to shaft tower, effectively prevents shaft tower loosened screw; Reduce the wearing and tearing between cable and shaft tower simultaneously, extend the useful life of cable and shaft tower.
For solving the problem, the technical solution adopted in the present invention is: this power line vibration damping mainly includes vibration damper bar, induction cylinder and connecting rod; Described link rotatable is set on a fixed rotating shaft, and this fixed rotating shaft is arranged on shaft tower; One end of described connecting rod ringwise adapter sleeve is located on cable, and the other end is fixedly connected with vibration damper bar; Described vibration damper bar is that permanent magnetic material is made, the magnetic field of this permanent magnetic material and the axis being parallel of vibration damper bar; The plane orthogonal at described vibration damper bar and described connecting rod and cable place; Be arranged with an induction cylinder respectively at the two ends of described vibration damper bar, each described induction cylinder is not exposed at the two ends of described vibration damper bar; Described vibration damper bar does not contact with each described induction cylinder; Each described induction cylinder is the coaxial closing coil of cluster, and each described induction cylinder is fixedly mounted on shaft tower.
The invention has the beneficial effects as follows: be located on cable when installing cables by ringwise for connecting rod end adapter sleeve, this end swings with cable synchronizing; Described link rotatable is set on described fixed rotating shaft, now this fixed rotating shaft becomes the fulcrum of described connecting rod, when the annular end of connecting rod swings, connecting rod connects one end of vibration damper bar to be done with backswing frequently, and the amplitude of oscillation and fulcrum proportional to the distance at connecting rod two ends; Each vibration damper bar swings, and the two ends of vibration damper bar penetrate or exit induction cylinder; Because vibration damper bar is that permanent magnetic material is made, when vibration damper bar passes in and out induction cylinder at every turn, magnetic flux in induction cylinder will change, according to Lenz's law, each described induction cylinder will produce the magnetic field contrary with described vibration damper bar magnetic pole to hinder the turnover of vibration damper bar, and then reduce the amplitude of oscillation of vibration damper bar, this inhibition feeds back on cable by connecting rod, thus weaken the swing of cable, and then weaken the vibration that cable passes to shaft tower, finally extend the useful life of shaft tower, reduce the wearing and tearing of cable and shaft tower junction.
As preferably, described vibration damper bar is circular arc magnetism stick, and the radius of this circular arc is equal to the distance of vibration damper bar with fixed rotating shaft, simultaneously each described shape of induction cylinder and the mating shapes of vibration damper bar; This structure ensures that vibration damper bar is when with cable flexing, and vibration damper bar moves reciprocatingly along the axis of self all the time; Thus increase the change of the magnetic flux in induction cylinder, and then improve effectiveness in vibration suppression.
As preferably, the ringwise end of described connecting rod is made 0 word and is buckled, and the internal perisporium of described 0 word button is provided with rubber blanket, and the aperture of the annulus of rubber blanket composition is less than the outside diameter of cable; Described rubber ring is coated with lubricating oil; This structure is convenient to the installation of power line vibration damping, adjustment and dismounting, can ensure that connecting rod is firmly fastened on cable, and rubber ring plays anti-loosening effect simultaneously.
As preferably, on described connecting rod, fixed rotating shaft is provided with retractable drawbar structure to the position of vibration damper bar; So that in initial length of installing power line vibration damping period of the day from 11 p.m. to 1 a.m regulating connecting rod, make the effectiveness in vibration suppression of this power line vibration damping the most reasonable.
As preferred further, described retractable drawbar structure is hydraulic mechanism, is provided with airtight liquid storage chamber in the external stability of connecting rod, and this liquid storage chamber is communicated with by inlet opening is airtight with the compression chamber offered in connecting rod; Close inlet opening after regulating connecting rod to appropriate length, can length of telescopic bar be fixed.
Accompanying drawing explanation
Fig. 1 is the structural representation of this power line vibration damping embodiment.
Fig. 2 is the structural representation be arranged on shaft tower embodiment illustrated in fig. 1.
Embodiment
Embodiment
In the embodiment shown in Fig. 1, Fig. 2, this power line vibration damping mainly includes vibration damper bar 2, induction cylinder 3 and connecting rod 1; Described connecting rod 1 turning set is located on a fixed rotating shaft 4, and this fixed rotating shaft 4 is fixedly mounted on shaft tower 7; One end of described connecting rod 1 is made 0 word and is buckled 11 and fastener is enclosed within cable 6, and the other end is fixedly connected with vibration damper bar 2; The internal perisporium of described 0 word button 11 is provided with rubber blanket, and the aperture of the annulus of rubber blanket composition is less than cable 6 external diameter; Described rubber ring is coated with lubricating oil, so that reduce the friction between cable 6 and connecting rod 1, and then extends the useful life of connecting rod 1; On described connecting rod 1, fixed rotating shaft 4 is provided with retractable drawbar structure to the position of vibration damper bar 2, and this Tiebar structure, by various ways, can be similar to the umbrella rod structure in Telescope umbrella, and with tight locking button; Also can pass through hydraulic stop, as small-sized traditional mechanical arm, be provided with airtight liquid storage chamber 5 in the outside of connecting rod 1, this liquid storage chamber is communicated with by inlet opening 51 is airtight with the compression chamber 52 in connecting rod 1; After being retractable to appropriate length, close inlet opening 51, now in connecting rod, liquor capacity is fixed, and length of telescopic bar is fixed; Described vibration damper bar 2 is made for permanent magnetic material, the magnetic field of this permanent magnetic material and the axis being parallel of vibration damper bar 2, the plane orthogonal at described vibration damper bar 2 and described connecting rod 1 and cable 6 place; Described vibration damper bar 2 is circular arc magnetism stick, and the radius of this circular arc is equal to the distance of vibration damper bar 2 with fixed rotating shaft 4; Be arranged with an induction cylinder 3 respectively at the two ends of described vibration damper bar 2, each described induction cylinder 3 is not exposed at the two ends of described vibration damper bar 2, each shape of described induction cylinder 3 and the mating shapes of vibration damper bar 2; Described vibration damper bar 2 does not contact with each described induction cylinder 3; Each described induction cylinder 3 is the coaxial closing coil of cluster, and each described induction cylinder 3 is fixedly mounted on shaft tower 7.
After installing cable 6, open 0 word buckle 11, be located on cable 6 by connecting rod 1 adapter sleeve, the aperture due to the annulus of rubber blanket composition is less than the external diameter of cable 6, and therefore connecting rod 1 is firmly fastened on cable 6, and the end of connecting rod 1 is with cable 6 synchronous hunting; Because described connecting rod 1 turning set is located on described fixed rotating shaft 4, now this fixed rotating shaft 4 becomes the fulcrum of described connecting rod 1, when the annular end of connecting rod 1 swings, one end that connecting rod 1 connects vibration damper bar 2 is done with backswing frequently, and the amplitude of oscillation and fulcrum proportional to the distance at connecting rod 1 two ends; Each vibration damper bar 2 swings, and the two ends of vibration damper bar 2 penetrate or exit induction cylinder 3; Due to vibration damper bar 2 for permanent magnetic material is made, when vibration damper bar 2 passes in and out induction cylinder 3 at every turn, magnetic flux in induction cylinder 3 will change, according to Lenz's law, each described induction cylinder 3 will produce the magnetic field contrary with described vibration damper bar 2 magnetic pole to hinder the turnover of vibration damper bar 2, and then reduce the amplitude of oscillation of vibration damper bar 2, this inhibition feeds back on cable 6 by connecting rod 1, thus weaken the swing of cable 6, and then weaken the vibration that cable 6 passes to shaft tower 7, finally extend the useful life of shaft tower 7, reduce the wearing and tearing of cable 6 and shaft tower 7 junction.
When initially installing, from different places, regulating connecting rod 1 is to suitable length, and length crosses the twisting resistance that conference increases connecting rod 1, reduces the useful life of connecting rod 1 for the height installed according to cable 6 and installation; Length is too small, and the damping effect of power line vibration damping is not obvious; When connecting rod 1 is in suitable length, the vibration weakening shaft tower 7 that this power line vibration damping can be made laughs, has longer service time simultaneously.
Described vibration damper bar 2 do magnetism stick in the arc-shaped, this structure ensure vibration damper bar 2 when swinging with cable 6, vibration damper bar 2 moves reciprocatingly along the axis of self all the time; Therefore will there is larger change in the magnetic flux responded in cylinder 3, and then increase the inhibition of induction cylinder 3 pairs of vibration damper bars 2, thus improve effectiveness in vibration suppression.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. power line vibration damping, this power line vibration damping mainly includes vibration damper bar (2), induction cylinder (3) and connecting rod (1); Described connecting rod (1) turning set is located on a fixed rotating shaft (4), and this fixed rotating shaft (4) is arranged on shaft tower (7); One end of described connecting rod (1) ringwise adapter sleeve is located on cable (6), and the other end is fixedly connected with vibration damper bar (2); Described vibration damper bar (2) is made for permanent magnetic material, the magnetic field of this permanent magnetic material and the axis being parallel of vibration damper bar; The plane orthogonal at described vibration damper bar (2) and described connecting rod (2) and cable (6) place; Be arranged with induction cylinder (3) respectively at the two ends of described vibration damper bar, each described induction cylinder (3) is not exposed at the two ends of described vibration damper bar (2); Described vibration damper bar (2) does not contact with each described induction cylinder (3); Each described induction cylinder (3) is the coaxial closing coil of cluster, and each described induction cylinder (3) is fixedly mounted on shaft tower (7).
2. power line vibration damping according to claim 1, it is characterized in that: described connecting rod (1) ringwise end is made 0 word and buckled (11), the internal perisporium of described 0 word button (11) is provided with rubber blanket, and the aperture of the annulus of rubber blanket composition is less than cable (6) external diameter; Described rubber ring is coated with lubricating oil.
3. power line vibration damping according to claim 2, it is characterized in that: described vibration damper bar (2) is circular arc magnetism stick, the radius of this circular arc is equal to the distance of vibration damper bar (2) with fixed rotating shaft (4), simultaneously each shape of described induction cylinder (3) and the mating shapes of vibration damper bar (2).
4. power line vibration damping according to claim 1 or 3, it is characterized in that: on described connecting rod (1), fixed rotating shaft (4) is provided with retractable drawbar structure to the position of vibration damper bar (2).
5. power line vibration damping according to claim 4, it is characterized in that: described retractable drawbar structure is hydraulic mechanism, be provided with airtight liquid storage chamber (5) in the external stability of connecting rod (1), this airtight liquid storage chamber (5) is communicated with by inlet opening (51) is airtight with the compression chamber offered in connecting rod (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120724.XU CN204376346U (en) | 2015-03-02 | 2015-03-02 | Power line vibration damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520120724.XU CN204376346U (en) | 2015-03-02 | 2015-03-02 | Power line vibration damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204376346U true CN204376346U (en) | 2015-06-03 |
Family
ID=53332527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520120724.XU Expired - Fee Related CN204376346U (en) | 2015-03-02 | 2015-03-02 | Power line vibration damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204376346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600648A (en) * | 2015-03-02 | 2015-05-06 | 朱金凤 | Power line vibration absorber |
-
2015
- 2015-03-02 CN CN201520120724.XU patent/CN204376346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600648A (en) * | 2015-03-02 | 2015-05-06 | 朱金凤 | Power line vibration absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20160302 |