CN107872040B - Combined anti-galloping device based on energy consumption and detuning principle - Google Patents
Combined anti-galloping device based on energy consumption and detuning principle Download PDFInfo
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- CN107872040B CN107872040B CN201610849649.XA CN201610849649A CN107872040B CN 107872040 B CN107872040 B CN 107872040B CN 201610849649 A CN201610849649 A CN 201610849649A CN 107872040 B CN107872040 B CN 107872040B
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 125000006850 spacer group Chemical group 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000013016 damping Methods 0.000 claims abstract description 25
- 230000009467 reduction Effects 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 7
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 5
- 230000008602 contraction Effects 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 30
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002401 inhibitory effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000016507 interphase Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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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
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
- H02G7/125—Damping spacers
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Abstract
The invention provides a combined anti-galloping device based on energy consumption and a detuning principle. The device includes: the spacer, a plurality of first connecting pieces and a plurality of vibration reduction mechanisms; each first connecting piece is connected with the inner wall of the spacer and is distributed in the spacer along the circumferential direction; and a vibration damping mechanism is connected between every two adjacent first connecting pieces and is used for reducing the vibration of the power transmission conducting wire connected with the spacing rod. According to the combined anti-galloping device provided by the invention, the plurality of vibration reduction mechanisms are connected in the spacer, and the vibration energy of the power transmission conductor is effectively consumed through the plurality of vibration reduction mechanisms, so that the vibration amplitude of the power transmission conductor is reduced, the purpose of inhibiting the galloping of the power transmission conductor is achieved, and the anti-galloping effect is better.
Description
Technical Field
The invention relates to the technical field of transmission line anti-galloping, in particular to a combined anti-galloping device based on energy consumption and a detuning principle.
Background
The reform is open, and the electric power industry in China is rapidly developed. Particularly, in recent years, with the continuous high-speed increase in demand for electricity, the power development speed has further increased. The power industry is the fundamental industry of the national civilization. The energy resource allocation is optimized, the national energy safety is guaranteed, and high-quality and reliable power supply is provided for national economy and social development.
The operation experience of the power transmission line shows that faults such as line interphase flashover and the like are easily caused by large-amplitude oscillation of the conducting wires caused by external loads such as ice, wind and the like due to small line interphase distance, and the safe and stable operation of the line is seriously threatened. According to statistical results, icing galloping is the most serious disaster form causing line faults, and therefore, the improvement of the line galloping prevention capacity is an important link in line design. The characteristics of high overhead line, large splitting number and the like of the extra-high voltage line are favorable conditions for exciting galloping, so that the extra-high voltage line is more easily influenced by galloping, windage yaw and ice shedding jump compared with a low-voltage-class line. With the acceleration of extra-high voltage line construction pace, corresponding anti-galloping situation is more severe.
The anti-galloping technology of the current common transmission line mainly comprises two aspects, namely the anti-galloping technology improvement of the pole tower, the conducting wire and the hardware fitting, and the anti-galloping device is additionally arranged. Based on the technical economy analysis, the additional installation of the anti-galloping device is an effective and common anti-galloping measure at present. The anti-galloping device researched and developed at home and abroad has a plurality of types, the low-voltage-level line in China mainly comprises three types of anti-galloping devices, namely an interphase spacer, a double-pendulum anti-galloping device and a wire clamp rotary spacer, and according to the existing operation experience, although the anti-galloping devices respectively have advantages and disadvantages, the overall anti-galloping effect is better, particularly, the anti-galloping devices are combined for use, and the anti-galloping capability is greatly improved. However, for the ultra-high voltage transmission line, the effective use of the double-pendulum anti-galloping device is inhibited due to the electrical problem generated by the improvement of the voltage grade, so that the wire clamp rotary spacer is mainly used in the anti-galloping design of the ultra-high voltage transmission line at present. The spacer is one of the indispensable key protection gold utensil on the transmission line, and the operation is born very complicated various loads. In addition, it is tested by various meteorological conditions and natural conditions, even very severe and windy meteorological conditions. At present, the wire clamp rotary spacer is mainly used in the anti-galloping design of the extra-high voltage line, but due to the complexity of galloping excitation, the anti-galloping effect obtained by the existing anti-galloping device is poor for the extra-high voltage transmission line, and particularly the anti-galloping device can be caused to lose efficacy in the region with higher galloping intensity.
Disclosure of Invention
In view of this, the invention provides a combined anti-galloping device based on energy consumption and detuning principles, and aims to solve the problem that the existing anti-galloping device is poor in anti-galloping effect.
In one aspect, the present invention provides a combined anti-galloping device based on energy consumption and detuning principle, the device comprising: the spacer, a plurality of first connecting pieces and a plurality of vibration reduction mechanisms; each first connecting piece is connected with the inner wall of the spacer and is distributed in the spacer along the circumferential direction; and a vibration damping mechanism is connected between every two adjacent first connecting pieces and is used for reducing the vibration of the power transmission conducting wire connected with the spacing rod.
Further, in the above-mentioned combination anti-galloping device based on power consumption and detuning principle, each damping mechanism includes: a first connector and a second connector; the first end of the first connecting body is connected with the first end of the second connecting body, and the first connecting body and the second connecting body form an included angle; the second end of the first connecting body and the second end of the second connecting body are respectively connected with two adjacent first connecting pieces, and each first connecting piece and the first connecting body and the second connecting body which are respectively connected form an included angle.
Further, in the above-mentioned combined anti-galloping device based on the energy consumption and detuning principle, the second connecting body includes: the second connecting piece and the third connecting piece are arranged in parallel; the first end of the second connecting piece and the first end of the third connecting piece are both connected with the first end of the first connecting body, and the first connecting body, the second connecting piece and the third connecting piece form an included angle; the first connecting piece is clamped between the second end of the second connecting piece and the second end of the third connecting piece and is connected with the second end of the third connecting piece through a fastening piece, and the first connecting piece, the second connecting piece and the third connecting piece are arranged at included angles.
Furthermore, in the combined anti-galloping device based on the energy consumption and detuning principle, the second end of the first connecting body is provided with a groove, and the first connecting piece is clamped in the groove.
Further, in the above-mentioned combination anti-galloping device based on power consumption and detuning principle, the first connector further includes: a cross shaft, a plurality of elastomers, and a bolt; the first end of the first connecting body is provided with a connecting seat, the connecting seat is provided with a through hole, the cross shaft is arranged in the through hole, and each elastic body is clamped in an annular space between the cross shaft and the inner wall of the through hole; the first end of the second connector, the cross shaft and the first end of the third connector are connected by bolts.
Furthermore, in the combined anti-galloping device based on the energy consumption and detuning principle, each elastic body is a rubber body.
Further, in the above-mentioned combined anti-galloping device based on the energy consumption and detuning principle, the spacer comprises: a plurality of wire clamps and an annular spacer body; each wire clamp is connected with the outer wall of the spacer body and is circumferentially distributed outside the spacer body; each wire clamp is arranged in one-to-one correspondence with each first connecting piece, and each vibration reduction mechanism is connected with the inner wall of the spacer body through each first connecting piece.
Further, the above-mentioned combination anti-galloping device based on power consumption and detuning principle still includes: a fourth connecting piece and a double-pendulum mechanism; the second connecting piece is connected with the first connecting piece, and the double-pendulum mechanism is connected with the second connecting piece.
Further, in the above-mentioned combination anti-galloping device based on power consumption and detuning principle, the double pendulum mechanism further includes: the connecting rod, the at least two third connecting bodies and the at least two pendulums; the first end of the connecting rod is connected with the fourth connecting piece, the first end of each third connecting body is connected with the second end of the connecting rod, and each third connecting body and the connecting rod form an included angle; each pendulum bob is respectively connected with the second end of each third connecting body.
Further, the above-mentioned combination anti-galloping device based on power consumption and detuning principle still includes: a connecting plate; wherein, the connecting plate is connected with the conductor spacer body, and the connecting rod clamp is located between connecting plate and the conductor spacer body to, the connecting plate is connected with the connecting rod.
According to the invention, the plurality of vibration reduction mechanisms are connected in the spacer, and the vibration energy of the transmission conductor is effectively consumed through the plurality of vibration reduction mechanisms, so that the vibration amplitude of the transmission conductor is reduced, the purpose of inhibiting the galloping of the transmission conductor is achieved, and the galloping prevention effect is better.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a combined anti-galloping device based on energy consumption and detuning principles according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a damping mechanism in the combined anti-galloping device based on the energy consumption and detuning principle according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view of a damping mechanism in the combined anti-galloping device based on the energy dissipation and detuning principle according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a damping mechanism in the combined anti-galloping device based on the energy consumption and detuning principle according to the embodiment of the present invention;
FIG. 5 is a schematic coordinate diagram of a system in the combined anti-galloping device based on the energy consumption and detuning principle according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a double-pendulum mechanism in the combined anti-galloping device based on the energy consumption and detuning principle according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a combined anti-galloping device based on energy consumption and detuning principles according to an embodiment of the present invention. As shown, the apparatus comprises: the spacer comprises a spacer 1, a plurality of first connecting pieces 2 and a plurality of damping mechanisms 3.
Wherein the spacer 1 is connected to a power conductor (not shown in the figure), each first connection member 2 is connected to the inner wall of the spacer 1, and each first connection member is evenly distributed in the spacer 1 in the circumferential direction. A damping mechanism 3 is connected between each adjacent first connecting piece 2, and each damping mechanism 3 is used for reducing the vibration of the power transmission conductor.
In specific implementation, each first connecting piece 2 and the spacer 1 may be connected by a bolt, and each first connecting piece 2 and the damping mechanism 3 may also be connected by a bolt.
In this embodiment, the spacer 1 is connected to the power transmission conductor, so as to fix the spatial position of the power transmission conductor and meet the requirements of mechanical and electrical properties. Moreover, the plurality of damping mechanisms 3 are connected in the spacer 1, and the energy of the vibration of the transmission conductor is effectively consumed through the plurality of damping mechanisms 3, so that the vibration amplitude of the transmission conductor is reduced, the purpose of inhibiting the galloping of the transmission conductor is achieved, the anti-galloping effect is better, and the service lives of the transmission conductor and the components thereof are prolonged.
Referring to fig. 2 and 3, a preferred construction of the damping mechanism 3 is shown. Each of the damper mechanisms 3 may include: a first connecting body 31 and a second connecting body 32. In this embodiment, the first end (the lower end shown in fig. 2) of the first connecting body 31 is connected to the first end (the lower end shown in fig. 2) of the second connecting body 32, in a specific implementation, the first end of the first connecting body 31 and the first end of the second connecting body 32 may be connected by a bolt, and the first connecting body 31 and the second connecting body 32 may be arranged at an included angle, it should be noted that a numerical value of the included angle between the first connecting body 31 and the second connecting body 32 may be selected according to an actual need, and this embodiment does not specifically limit this. The second end (the upper end shown in fig. 2) of the first connecting body 31 and the second end (the upper end shown in fig. 2) of the second connecting body 32 are respectively connected to two adjacent first connecting pieces 2, in a specific implementation, the second end of the first connecting body 31 and the second end of the second connecting body 32 may be connected by bolts, and each first connecting piece 2 and the first connecting body 31 and the second connecting body 32 connected to each first connecting piece 2 may be arranged at an included angle.
In practical implementation, two adjacent first connecting pieces 2 and the first connecting body 31 and the second connecting body 32 respectively connected with the two adjacent first connecting pieces 2 form a four-bar mechanism, and referring to fig. 4, four bar members connect the kinematic pair A, B, C, D, EA and E are connected to the spacer 1, AB and DE denote two adjacent first connecting members 2, CD denotes a first connecting body 31, BC denotes a second connecting body 32, and the lengths of AB and DE are denoted L1BC and CD are equal in length and are both denoted as L2And the length of AE is denoted as L3，T1、T2And T represents the position angle, and S represents the distance between B, D kinematic pairs, respectively, the geometric position of B, D can be expressed as:
Bx＝L1cosT1，By＝L1sinT1
Dx＝L3+L1cosT2，Dy＝L1sinT2
further obtain
Namely, it is
From the cosine theorem, it can be known that:
wherein, T1The value can be taken according to the splitting number of the spacer 1, and the specific T1The value-taking method is well known to those skilled in the art and thus is not described in detail.
In this embodiment, the first connecting body 31 and the second connecting body 32 are disposed at an included angle, so that the energy of the vibration of the power transmission line is more effectively consumed, and the anti-galloping effect is better.
In the above embodiment, the second connecting body 32 may include: a second connector 321 and a third connector 322 arranged in parallel. The first end (the left end shown in fig. 3) of the second connecting member 321 and the first end (the left end shown in fig. 3) of the third connecting member 322 are both connected to the first end of the first connecting body 31, and the first connecting body 31, the second connecting member 321 and the third connecting member 322 may form an included angle, it should be noted that the value of the included angle between the first connecting body 31 and the second connecting member 321 and the third connecting member 322 may be selected according to actual needs, and this embodiment does not specifically limit this. The first connecting piece 2 is clamped between the second end (the right end shown in fig. 3) of the second connecting piece 321 and the second end (the right end shown in fig. 3) of the third connecting piece 322 and is connected through a bolt, so that the first connecting piece 2, the second connecting piece 321 and the third connecting piece 322 are connected more firmly, and the anti-galloping effect is better. In order to make the connection among the first connector 2, the second connector 321, and the third connector 322 tighter, a sleeve 6 may be interposed between the second ends of the first connector 2 and the second connector 321 and between the second ends of the first connector 2 and the third connector 322, and a bolt may be inserted into the sleeve. The first connecting member 2, the second connecting member 321, and the third connecting member 322 may be arranged to form an included angle, and it should be noted that the value of the included angle between the first connecting member 2 and the second connecting member 321, and the value of the included angle between the third connecting member 322, and the second connecting member 321 may be selected according to actual needs, and this embodiment does not specifically limit the present invention.
In the above embodiment, the second end of the first connecting body 31 may be provided with a groove, the first connecting member 2 is clamped in the groove, and during specific implementation, the first connecting member 2 and the second end of the first connecting body 31 may be connected by a bolt, so that the connection between the first connecting body 31 and the first connecting member 2 is more secure, and the anti-galloping effect is better.
In the above embodiment, the first connecting body 31 may further include: a cross 311, a plurality of elastic bodies 312, and bolts 313. Wherein, the first end of first connector 31 can be provided with connecting seat 7 to, the through-hole can be seted up to the connecting seat, can set up cross 311 in the through-hole, press from both sides each elastomer 312 and locate in the annular space between cross 311 and the through-hole inner wall, each elastomer 312 all can be the rubber body, obtains damping performance through the rubber body, has further consumed the energy of transmission of electricity wire vibration, makes the vibration range of transmission of electricity wire reduce, makes the galloping effect better. The first end of the second connector 321, the cross 311 and the first end of the third connector 322 are connected by bolts, so that the connection is firmer.
In the above embodiments, the spacer 1 may include: a plurality of clips 11 and an annular spacer body 12. Wherein, each wire clamp can be a rotary wire clamp and also can be a common wire clamp. Each wire clamp 11 can all be connected with the outer wall of conductor spacer body 12 through the bolt, and along circumference evenly distributed outside conductor spacer body 12. Moreover, each wire clamp 11 is arranged in one-to-one correspondence with each first connecting piece 2, and during specific implementation, each wire clamp 11 and the corresponding first connecting piece 2 can be connected by bolts or welded. The damping means 3 can be connected to the inner wall of the spacer body 12 via the first connecting elements 2.
In the embodiment, the spatial position of the transmission conductor is fixed by each wire clamp 11, and the requirements of mechanical mechanics and electrical performance are met.
Based on a stability anti-galloping mechanism, namely the basic idea is as follows: the galloping of the power transmission line is caused by instability, in order to keep a system consisting of the spacer 1, the first connecting pieces 2 and the damping mechanisms 3 stable, parameters sensitive to galloping of the system need to be changed, for example, the torsional rigidity and the rotational inertia of the system are increased, the ice wind threshold of the galloping of the wire system can be changed, the galloping can be effectively inhibited, namely, the system is converted from the original possible unstable state into the stable state, and therefore the dynamic stability mechanism of the system needs to be researched. Based on the above idea, referring to fig. 5, a is a power transmission conductor, θ is an angle of attack (x)i,yi) For transmission line coordinates, VwIs the wind speed. From the map, a calculation model described by governing differential equations can be derived as
Where M is the mass matrix of the system, C is the damping matrix of the system, and K is the stiffness matrix of the system, i.e.
The characteristic polynomial of the system is f (lambda) ═ M lambda obtained by a calculation model2+ C λ + K |, or
Wherein the symbol "|" indicates that the determinant is taken for a matrix, aiRepresents a general polynomial; λ represents a characteristic factor.
According to ROUTH-HURWITZ stability criterion, if the following conditions are satisfied:
if the condition is not satisfied, the system is considered to be possible to swing.
If the system is stable, a double-pendulum mechanism does not need to be additionally arranged. If the system is unstable, a double pendulum mechanism needs to be additionally installed, so that in order to suppress torsional detuning of the power transmission conductor, the system is converted from an originally possible unstable state to a stable state, see fig. 6, and the above embodiment may further include: a fourth connecting piece 4 and a double pendulum mechanism 5. The fourth connecting piece 4 can be respectively connected with two adjacent first connecting pieces 2 through bolts, and the double-pendulum mechanism 5 can also be connected with the fourth connecting piece 4 through bolts.
In this embodiment, through installing double pendulum mechanism 5 additional, can restrain the holistic torsional vibration of transmission conductor to, restrain the production of transmission conductor torsional vibration, increased transmission conductor's torsional rigidity and inertia, turn into stable state with the system from the unstable state that originally probably, make and prevent waving effect better.
In the above embodiment, the double pendulum mechanism 5 may further include: a connecting rod 51, at least two third connecting bodies 52 and at least two pendulums 53. The first end (the upper end shown in fig. 6) of the connecting rod 51 may be connected to the fourth connecting member 4 by a bolt, the first end (the upper end shown in fig. 6) of each third connecting body 52 may be connected to the second end (the lower end shown in fig. 6) of the connecting rod 51 by a bolt, and each third connecting body 52 may be disposed at an included angle with the connecting rod 51, it should be noted that a numerical value of the included angle between each third connecting body 52 and the connecting rod 51 may be selected according to actual needs, and this embodiment does not specifically limit this. The pendulums 53 may be respectively coupled to the second ends (lower ends shown in fig. 6) of the third coupling bodies 52 by bolts, and the pendulums 53 may be uniformly distributed. Each pendulum 53 increases the torsional rigidity and the moment of inertia of the power transmission conductor, so that the power transmission conductor is not easy to generate torsional detuning, and the anti-galloping effect is better.
In specific implementation, the horizontal distance from each pendulum 53 to the center of the connecting rod 51 may be equal to the horizontal distance from the lowest (lower in fig. 1) one wire clip 11 to the center of the connecting rod 51.
In order to prevent the double pendulum mechanism 5 from disengaging from the fourth connection plate 4 due to a failure, that is, the double pendulum mechanism 5 disengages from the vibration damping mechanism 3, and thus the torsional detuning of the power transmission line cannot be suppressed, the above embodiment may further include: a connecting plate 6. The connecting plate 6 can be connected with the spacer body 12, the first end of the connecting rod 51 can be made into a contracted shape, the contracted part of the first end of the connecting rod 51 is clamped between the connecting plate 6 and the spacer body 12, and the connecting plate 6 is connected with the connecting rod 51 through a bolt. When the double pendulum mechanism 5 is separated from the damping mechanism 3, the double pendulum mechanism 5 can still be fixed on the spacer body 12 through the connecting plate 6, and further the torsional detuning of the power transmission conductor is suppressed.
In conclusion, in the embodiment, the plurality of damping mechanisms are connected in the spacer, and the energy of the vibration of the power transmission conductor is effectively consumed through the plurality of damping mechanisms, so that the vibration amplitude of the power transmission conductor is reduced, the purpose of inhibiting the galloping of the power transmission conductor is achieved, and the anti-galloping effect is better.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A combined anti-galloping device based on energy consumption and detuning principle is characterized by comprising: the device comprises a spacer (1), a plurality of first connecting pieces (2), a plurality of vibration reduction mechanisms (3), a fourth connecting piece (4) and a double-pendulum mechanism (5); wherein the content of the first and second substances,
each first connecting piece (2) is connected with the inner wall of the spacer (1) and is distributed in the spacer (1) along the circumferential direction;
the damping mechanisms (3) are connected between every two adjacent first connecting pieces (2), and each damping mechanism (3) is used for reducing vibration of the power transmission conducting wire connected with the spacing rod (1);
the spacer (1) comprises: a plurality of wire clips (11) and an annular spacer body (12); wherein the content of the first and second substances,
each wire clamp (11) is connected with the outer wall of the spacer body (12) and is distributed on the outer edge of the spacer body (12) along the circumferential direction;
each wire clamp (11) is arranged in one-to-one correspondence with each first connecting piece (2), and each damping mechanism (3) is connected with the inner wall of the spacer body (12) through each first connecting piece (2);
the fourth connecting piece (4) is respectively connected with two adjacent first connecting pieces (2), and the double-pendulum mechanism (5) is also connected with the fourth connecting piece (4);
the double pendulum mechanism includes: a connecting rod (51), at least two third connecting bodies (52), at least two pendulums (53) and a connecting plate (6); wherein the content of the first and second substances,
the first end of the connecting rod (51) is connected with the fourth connecting piece (4), the first end of each third connecting body (52) is connected with the second end of the connecting rod (51), and each third connecting body (52) and the connecting rod (51) are arranged in an included angle;
each pendulum (53) is connected with the second end of each third connecting body (52) respectively;
the connecting plate (6) is connected with the spacer body (12), the first end of the connecting rod (51) is in a contraction shape, the first end of the connecting rod (51) is clamped between the connecting plate (6) and the spacer body (12), and the connecting plate (6) is connected with the connecting rod (51).
2. Combined anti-galloping device based on the dissipative and detuning principle according to claim 1, wherein each damping mechanism (3) comprises: a first connecting body (31) and a second connecting body (32); wherein the content of the first and second substances,
the first end of the first connecting body (31) is connected with the first end of the second connecting body (32), and the first connecting body (31) and the second connecting body (32) are arranged in an included angle;
the second ends of the first connecting bodies (31) and the second ends of the second connecting bodies (32) are respectively connected with two adjacent first connecting pieces (2), and the first connecting pieces (2) and the first connecting bodies (31) and the second connecting bodies (32) which are respectively connected form included angles.
3. Combined anti-galloping device based on energy consuming and detuning principles according to claim 2, wherein said second connecting body (32) comprises: a second connecting piece (321) and a third connecting piece (322) which are arranged in parallel; the first end of the second connecting piece (321) and the first end of the third connecting piece (322) are both connected with the first end of the first connecting body (31), and the first connecting body (31), the second connecting piece (321) and the third connecting piece (322) are arranged in an included angle;
the first connecting piece (2) is clamped between the second end of the second connecting piece (321) and the second end of the third connecting piece (322) and is connected through a fastener, and the first connecting piece (2) and the second connecting piece (321) and the third connecting piece (322) are arranged at included angles.
4. The combined anti-galloping device based on the energy consumption and detuning principle according to claim 2, wherein the second end of the first connecting body (31) is provided with a groove, and the first connecting member (2) is clamped in the groove.
5. Combined anti-galloping device based on energy consuming and detuning principles according to claim 3, wherein the first connection body (31) further comprises: a cross shaft (311), a plurality of elastic bodies (312), and a bolt (313); wherein the content of the first and second substances,
a first end of the first connecting body (31) is provided with a connecting seat, the connecting seat is provided with a through hole, the cross shaft (311) is arranged in the through hole, and each elastic body (312) is clamped in an annular space between the cross shaft (311) and the inner wall of the through hole;
the first end of the second connector (321), the cross shaft (311) and the first end of the third connector (322) are connected by bolts.
6. Combined anti-galloping device based on energy dissipation and detuning principles according to claim 5, wherein each of said elastic bodies (312) is a rubber body.
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| CN201610849649.XA CN107872040B (en) | 2016-09-23 | 2016-09-23 | Combined anti-galloping device based on energy consumption and detuning principle |
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|---|---|---|---|---|
| CN109599820B (en) * | 2018-11-02 | 2020-06-19 | 浙江大学 | Anti-galloping-twisting turning eddy current mass damper and optimization method |
| CN110011257B (en) * | 2019-04-17 | 2020-08-28 | 刘奉海 | Torsional electromagnetic damping anti-galloping device |
| CN109994980B (en) * | 2019-04-17 | 2020-10-13 | 刘奉海 | Torsional damping type electromagnetic anti-galloping device and overhead transmission line thereof |
| CN111446588B (en) * | 2020-04-13 | 2021-05-28 | 广东电网有限责任公司 | Fixed connection device of polytypic aviation connector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU982127A2 (en) * | 1981-02-16 | 1982-12-15 | Башкирский Ордена Трудового Красного Знамени Сельскохозяйственный Институт | Spacer for wires of overhead power transmission lines |
| CN2819568Y (en) * | 2005-08-01 | 2006-09-20 | 南京康能电力技术有限公司 | Dynamic vibrating damper for preventing conductive wire from swinging |
| CN201054486Y (en) * | 2007-04-23 | 2008-04-30 | 李建国 | Throw-protector for split lead |
| CN202159946U (en) * | 2011-07-13 | 2012-03-07 | 河南电力器材公司 | Six-split detuning pendulum anti-galloping damping spacing rod |
| CN204243688U (en) * | 2014-12-05 | 2015-04-01 | 石兰电气股份有限公司 | Simple pendulum hammer damp type six cracking separation rod |
| CN204243687U (en) * | 2014-12-05 | 2015-04-01 | 石兰电气股份有限公司 | The two cracking separation rod of simple pendulum hammer damp type |
| CN205178443U (en) * | 2015-11-20 | 2016-04-20 | 河南电力器材公司 | Damping conductor spacer is prevented waving by detuning pendulum with adjustable |
| CN205544129U (en) * | 2016-03-16 | 2016-08-31 | 中国电力科学研究院 | Star prevents waving ware |
-
2016
- 2016-09-23 CN CN201610849649.XA patent/CN107872040B/en active Active
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