CN206611143U - A kind of device for suppressing vibration of power transmission line - Google Patents
A kind of device for suppressing vibration of power transmission line Download PDFInfo
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- CN206611143U CN206611143U CN201720396883.1U CN201720396883U CN206611143U CN 206611143 U CN206611143 U CN 206611143U CN 201720396883 U CN201720396883 U CN 201720396883U CN 206611143 U CN206611143 U CN 206611143U
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Abstract
This application discloses a kind of device for suppressing vibration of power transmission line, including surface sheath and spiral salient, surface sheath is wrapped in transmission pressure surface, spiral salient is helically wound around surface jacket surface, wherein, spiral salient includes transport screw projection and reverse acting spiral is raised, and transport screw is raised to be symmetrical arranged with the raised shaft section on surface sheath of reverse acting spiral, and transport screw projection is consistent with the structure that reverse acting spiral is raised.The transport screw that the device has is raised raised with reverse acting spiral, on the one hand can destroy the flowing of regular gas and the vortex of transmission pressure axial stroke, suppress the brandishing of transmission pressure；On the other hand the water channel that destruction rainwater flows down along transmission pressure surface can be played, suppresses the rain wind induced vibration phenomenon of transmission pressure.In addition, the device can be combined with damper and use, and plays a part of reducing shockproof hammer thread clip and the friction before transmission pressure, preferably plays the effect of damper.
Description
Technical field
The application is related to transmission pressure surface apparatus field, more particularly to a kind of device for suppressing vibration of power transmission line.
Background technology
Due to adverse weather conditions such as wind and weathers, the transmission pressure being set up on high-tension pole can produce vibration unavoidably.
Common vibration mode includes rain wind induced vibration and Galloping of Overhead Transmission Line.Wherein, rain wind induced vibration refers to transmission pressure in specific wind
The low frequency that rain coupling condition descends inducing gas dynamic buckling and occurred significantly vibrates；Galloping of Overhead Transmission Line refers to that transmission pressure is having wind
Without a kind of low frequency significantly self-excited vibration produced under conditions of rain.Acutely ground because the significantly vibration of transmission pressure easily causes gold utensil
Undermine transmission pressure and hinder stock, stranded phenomenon, so as to have a strong impact on the normal operation of transmission line of electricity.
The mode of conventional suppression vibration of power transmission line is that damper is installed on transmission pressure at present, is arranged with Mechanical course
Apply the significantly vibration for suppressing transmission pressure.Damper forms the ballast point of transmission pressure in its installation site, when transmission pressure production
Raw when significantly vibrating, damper forms vibration nodal point at ballast point, produced and transmission pressure by limiting the amplitude of ballast point
The motion of vibration phase conversely, so that vibration of power transmission line is eliminated or weakened.
Because damper is fixed on transmission pressure by built-in shockproof hammer thread clip, it is easily caused defeated at shockproof hammer thread clip
Electric lead damage is larger.Therefore the damage and tension force increase of transmission pressure can be caused by installing excessive damper, be easily caused defeated
Electric lead fatigue is impaired, threatens the safe operation of transmission pressure.Although in addition, transmission pressure dance can be suppressed by installing damper
It is dynamic, it can not but suppress rain wind induced vibration phenomenon.
Utility model content
This application provides a kind of device for suppressing vibration of power transmission line, to solve the significantly vibration problem of transmission pressure.
The device for the suppression vibration of power transmission line that the application is provided, including surface sheath and spiral salient, surface sheath bag
The outer surface of transmission pressure is wrapped in, spiral salient is helically wound around surface jacket surface, wherein, spiral salient includes transport screw
Raised and reverse acting spiral is raised, transport screw is raised be symmetrical arranged with the raised shaft section on surface sheath of reverse acting spiral and
In the opposite direction, the structure that transport screw is raised with reverse acting spiral is raised is consistent.
Alternatively, uniformly it is covered with multiple grooves on the outer surface of surface sheath.
Alternatively, the pitch that transport screw is raised and reverse acting spiral is raised is 4D-6D, wherein, D is the outer of surface sheath
Footpath.
Alternatively, the cross section that transport screw is raised and reverse acting spiral is raised is circular arc, rectangle, trapezoidal or triangle.
Alternatively, the vertical interval for the apogee distance surface jacket outer surface that transport screw is raised and reverse acting spiral is raised
For 3-6mm, the Breadth Maximum for the cross section that transport screw is raised and reverse acting spiral is raised is 3-6mm.
Alternatively, surface sheath is aluminium sheath.
Alternatively, groove is distributed uniformly and circumferentially on the outer surface of surface sheath.
This application provides a kind of device for suppressing vibration of power transmission line, including surface sheath and spiral salient, surface shield
Set is wrapped in transmission pressure surface, and spiral salient is helically wound around surface jacket surface, wherein, spiral salient includes transport screw
Raised and reverse acting spiral is raised, and transport screw is raised to be symmetrical arranged with the raised shaft section on surface sheath of reverse acting spiral, just
It is consistent with the structure that reverse acting spiral is raised to spiral salient.The transport screw that the device has is raised raised with reverse acting spiral,
On the one hand the flowing of regular gas and the vortex of transmission pressure axial stroke can be destroyed, reduction Aerodynamic force is to transmission pressure
Influence, suppress transmission pressure brandishing；On the other hand the water that destruction rainwater flows down along transmission pressure surface can be played
Road, prevents the formation of continuous rain line, hinders rain line to produce surface concussion in transmission pressure, so that the wind and rain for suppressing transmission pressure swashs
Shake phenomenon.In addition, the device can be combined with damper and use, play reduction shockproof hammer thread clip with before transmission pressure
The effect of friction, preferably plays the effect of damper.
It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary and explanatory, not
The utility model can be limited.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation of the device for suppression vibration of power transmission line that Fig. 1 provides for the application；
A kind of cross-sectional structure schematic diagram of the device for suppression vibration of power transmission line that Fig. 2 provides for the application；
The structural representation of the device for another suppression vibration of power transmission line that Fig. 3 provides for the application；
The structural representation that the device for the suppression vibration of power transmission line that Fig. 4 provides for the application is used cooperatively with damper.
Wherein, Fig. 1 symbols into Fig. 3 are expressed as：1- surfaces sheath, 2- transmission pressures, 3- transport screws are raised, and 4- is reverse
Spiral salient, 5- grooves, 6- shockproof hammer thread clips, 7- dampers, 21- copper cores, 22- aluminium stock.
Embodiment
The purpose of the application is to overcome the shortcomings of that existing transmission pressure vibration reducing measure can suppress transmission pressure there is provided one kind and shake
Dynamic device, is played while suppressing the generation of Galloping of Overhead Transmission Line and rain wind induced vibration phenomenon.Below in conjunction with the embodiment of the present application
In accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described.
Referring to the structural representation of the device of Fig. 1, the application a kind of suppression vibration of power transmission line provided.The device includes
Surface sheath 1 and spiral salient, surface sheath 1 are wrapped in the surface of transmission pressure 2, and spiral salient is helically wound around surface sheath 1
Surface, wherein, spiral salient includes transport screw projection 3 and reverse acting spiral projection 4, and transport screw projection 3 is convex with reverse acting spiral
4 are played to be symmetrical arranged and transport screw projection 3 and reverse acting spiral projection 4 are in opposite direction on the shaft section of surface sheath 1, it is positive
Spiral salient 3 is consistent with the structure of reverse acting spiral projection 4, i.e., transport screw projection it is 3 identical with the material of reverse acting spiral projection 4,
Size is identical and shape is identical etc., specifically no longer limits herein, can refer to the associated description of implementation below.
As shown in Fig. 2 a kind of cross-sectional structure schematic diagram of the device of the suppression vibration of power transmission line provided for the application,
Because transmission pressure 2 is generally the structure of the parcel winding copper core 21 of aluminium stock 22, on transmission pressure 2 during fitting, due to gold
Frictional force between tool and transmission pressure 2 is larger, therefore, easily causes the degree of wear increase of transmission pressure 2, and aggravation transmission of electricity is led
The aging of line 2, threatens the operation safety of transmission pressure 2 when serious.The device for the suppression vibration of power transmission line that the application is provided is adopted
Transmission pressure 2 is wrapped up with surface sheath 1, if now again on transmission pressure 2 during fitting, just can reduce transmission of electricity and lead
Friction between line 2 and gold utensil, it is to avoid above-mentioned situation occurs.Surface sheath 1 can use aluminium sheath.Due to surface sheath 1 with
Tight between transmission pressure 2, compared to the front face area that other vibration absorbers can't increase wire, so as to avoid increase
The aerodynamic drag of wire.
The setting of transport screw projection 3 and reverse acting spiral projection 4 is always the key of vibration of power transmission line.Transport screw is convex
Rise 3 and reverse acting spiral projection 4 can change the boundary layer separation point on transmission pressure surface, destruction transmission pressure axial stroke has rule
The gas flowing of rule and vortex, that is, destroy along transmission pressure and be axially formed axially stream and axial whirlpool, change the three-dimensional around wire
Structure, influence of the reduction Aerodynamic force to wire, suppresses the generation of Galloping of Overhead Transmission Line phenomenon.Transport screw projection 3 and anti-
The water channel that rainwater flows down along conductive line surfaces can also be destroyed to spiral salient 4, the formation of continuous rain line is prevented, rain line is hindered defeated
Electric lead surface oscillation, it is to avoid rain wind induced vibration occurs for transmission pressure.
Transport screw projection 3 and reverse acting spiral projection 4 can be with as shown in Fig. 2 cross section may be configured as rectangle.Except this it
Outside, transport screw projection 3 and reverse acting spiral projection 4 contact the also settable circular arc in part of surface sheath 1, are being embodied
Cheng Zhong, transport screw projection 3 and reverse acting spiral projection 4 may be alternatively provided as semicircle；Trapezoidal or triangle is may also be configured to, in tool
In body implementation process, transport screw projection 3 and reverse acting spiral projection 4 may be alternatively provided as isosceles trapezoid or isosceles triangle.This Shen
Please in do not show that several corresponding cross-sectional structure schematic diagrames of the above, but still belong to the protection domain of the application.
According to the Vibration Condition installed at the device that the application is provided, transmission pressure 2 vibrates more violent position, it is desirable to should
The setting of transport screw projection 3 and reverse acting spiral projection 4 is closer on device, conversely, transmission pressure 2 vibrates less violent portion
Position, it is desirable to which the setting of transport screw projection 3 and reverse acting spiral projection 4 is more sparse on the device.Under normal circumstances, using D as surface
The external diameter of sheath 1, in the embodiment of the present application, 4D-6D is set to by the pitch of transport screw projection 3 and reverse acting spiral projection 4.
Similarly, transmission pressure 2 vibrates more violent position, it is desirable to which transport screw projection 3 and reverse acting spiral projection 4 are set on the device
Put and more protrude, conversely, transmission pressure 2 vibrates less violent position, it is desirable to transport screw projection 3 and reverse acting spiral on the device
The setting of projection 4 is more recessed.In the embodiment of the present application, the apogee distance table of transport screw projection 3 and reverse acting spiral projection 4
The vertical interval of the outer surface of face sheath 1 is 3-6mm, and the maximum of the cross section of transport screw projection 3 and reverse acting spiral projection 4 is wide
Spend for 3-6mm.So that the spiral salient of rectangle is in cross section as an example, cross section rectangular aspect may be provided between 3-6mm.It is similar
Ground, when the cross section of spiral salient is isosceles trapezoid, the bottom of cross section isosceles trapezoid may be configured as 3-6mm, and height is settable
For 3-6mm, and upper bottom length is less than bottom length.Other situations are similar to the above, do not elaborate herein.
In addition, present invention also provides the device of another suppression vibration of power transmission line.As shown in figure 3, the device
Surface sheath 1 outer surface on be also uniformly covered with multiple grooves 5.These grooves 5 can be distributed uniformly and circumferentially in surface
On sheath 1.These grooves 5 can improve the roughness on the surface of transmission pressure 2, and further destruction rain line is on the surface of transmission pressure 2
Formed and vibrated, effectively suppressed transmission pressure and occur rain wind induced vibration phenomenon.
The device for the suppression vibration of power transmission line that the application is provided, which is removed, to be carried out at the serious position of vibration of power transmission line
It is independently installed to be used cooperatively using outer with damper, further to improve vibration-isolating effect.Specifically, such as Fig. 4 institutes
Show, the structural representation that the device of the suppression vibration of power transmission line provided for the application is used cooperatively with damper.Vibrationproof plumb line
Between folder 6 and transmission pressure 2, the device of the application offer is set up, and coverage of the present apparatus on transmission pressure 2 is greater than
Shockproof hammer thread clip 6.The present apparatus is used cooperatively with damper 6, can both reduce the stress that damper 7 is produced to transmission pressure 2
Excessively concentrate, the friction between damper 7 and transmission pressure 2 can be reduced again, so as to reduce the damage to transmission pressure 2, make
Vibration-isolating effect is greatly improved.
In the embodiment of the present application, the device for the suppression vibration of power transmission line that the application is provided, is closely wrapped with surface sheath 1
The outer surface of transmission pressure 2 is wrapped in, compared to the front face area that other vibration absorbers can't increase wire, so as to avoid increase from leading
The aerodynamic drag of line.The setting of transport screw projection 3 and reverse acting spiral projection 4, on the one hand can destroy transmission pressure axial stroke
The flowing of regular gas and vortex, influence of the reduction Aerodynamic force to transmission pressure 2, suppress waving for transmission pressure 2
Phenomenon；On the other hand the water channel that destruction rainwater flows down along transmission pressure surface can be played, the formation of continuous rain line is prevented, hindered
Rain line produces surface concussion in transmission pressure 2, so as to suppress the rain wind induced vibration phenomenon of transmission pressure 2.The present apparatus can be combined with
Damper 7 is used, and is played a part of reducing shockproof hammer thread clip 6 and the friction before transmission pressure 2, is preferably played damper 7
Effect.
Those skilled in the art will readily occur to its of the application after the disclosure that specification and practice are applied here is considered
Its embodiment.The application is intended to any modification, purposes or the adaptations of the application, these modifications, purposes or
Person's adaptations follow the general principle of the application and including the undocumented common knowledge in the art of the application
Or conventional techniques.Description and embodiments are considered only as exemplary, and the true scope of the application and spirit are by following
Claim is pointed out.
It should be appreciated that the precision architecture that the application is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (7)
1. a kind of device for suppressing vibration of power transmission line, it is characterised in that including surface sheath (1) and spiral salient, the table
Face sheath (1) is wrapped in transmission pressure (2) surface, and the spiral salient is helically wound around the outer surface of the surface sheath (1),
Wherein,
The spiral salient includes transport screw raised (3) and reverse acting spiral is raised (4), the transport screw raised (3) and institute
State reverse acting spiral raised (4) to be symmetrical arranged on the shaft section of the surface sheath (1) and in opposite direction, the transport screw
Raised (3) are consistent with the structure of reverse acting spiral raised (4).
2. device as claimed in claim 1, it is characterised in that be uniformly covered with the outer surface of the surface sheath (1) multiple
Groove (5).
3. device as claimed in claim 1, it is characterised in that the transport screw raised (3) and reverse acting spiral projection (4)
Pitch is 4D-6D, wherein, D is the external diameter of the surface sheath (1).
4. device as claimed in claim 1, it is characterised in that the transport screw raised (3) and reverse acting spiral projection (4)
Cross section is circular arc, rectangle, trapezoidal or triangle.
5. device as claimed in claim 1, it is characterised in that the transport screw raised (3) and reverse acting spiral projection (4)
The vertical interval of surface sheath (1) outer surface described in apogee distance is 3-6mm, the transport screw raised (3) and reverse spiral shell
The Breadth Maximum of the cross section of rotation raised (4) is 3-6mm.
6. device as claimed in claim 1, it is characterised in that the surface sheath (1) is aluminium sheath.
7. device as claimed in claim 2, it is characterised in that the groove (5) is distributed uniformly and circumferentially in the table
On the outer surface of face sheath (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720396883.1U CN206611143U (en) | 2017-04-17 | 2017-04-17 | A kind of device for suppressing vibration of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720396883.1U CN206611143U (en) | 2017-04-17 | 2017-04-17 | A kind of device for suppressing vibration of power transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN206611143U true CN206611143U (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720396883.1U Active CN206611143U (en) | 2017-04-17 | 2017-04-17 | A kind of device for suppressing vibration of power transmission line |
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| CN (1) | CN206611143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760423A (en) * | 2018-05-25 | 2018-11-06 | 云南电网有限责任公司电力科学研究院 | A kind of head space formula holds the paper oil insulation water and basis weight control device of gas method |
| CN111463734A (en) * | 2020-05-29 | 2020-07-28 | 兰州交通大学 | Anti-galloping discharging device for overhead conductor |
-
2017
- 2017-04-17 CN CN201720396883.1U patent/CN206611143U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760423A (en) * | 2018-05-25 | 2018-11-06 | 云南电网有限责任公司电力科学研究院 | A kind of head space formula holds the paper oil insulation water and basis weight control device of gas method |
| CN108760423B (en) * | 2018-05-25 | 2021-02-02 | 云南电网有限责任公司电力科学研究院 | Quantitative control device for oiled paper insulation moisture of headspace type gas-containing method |
| CN111463734A (en) * | 2020-05-29 | 2020-07-28 | 兰州交通大学 | Anti-galloping discharging device for overhead conductor |
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