CN108347024B - Damping spacer with unequal arm lengths - Google Patents
Damping spacer with unequal arm lengths Download PDFInfo
- Publication number
- CN108347024B CN108347024B CN201810485543.5A CN201810485543A CN108347024B CN 108347024 B CN108347024 B CN 108347024B CN 201810485543 A CN201810485543 A CN 201810485543A CN 108347024 B CN108347024 B CN 108347024B
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- CN
- China
- Prior art keywords
- base
- fixed
- arm
- long
- short
- 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.)
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Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 38
- 238000013016 damping Methods 0.000 title claims abstract description 33
- 206010070670 Limb asymmetry Diseases 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005284 excitation Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Vibration Prevention Devices (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a damping spacer with unequal arm lengths, which comprises a long fixed arm, a short fixed arm, a base, a viscous damper and a heavy ball, wherein the long fixed arm is fixed on the base; the base is regular polygon, and the long fixing arms and the short fixing arms are alternately arranged on the periphery of the base; the center of the base is provided with a heavy ball; the heavy ball is connected with the base through the viscous damper; one end of the viscous damper is fixed on the base, and the other end of the viscous damper is fixed on the heavy ball. According to the invention, the adjacent split conductor fixing arms are different in arm length, so that adjacent conductors are different in space, and downstream conductors avoid upstream conductor wake flow, thereby reducing vibration excitation; a viscous damper is adopted, so that damping of a split conductor-spacer system is increased, and damping and shock absorption effects are enhanced; the components are simply connected and conveniently installed.
Description
Technical Field
The invention relates to a damping spacer with unequal arm lengths for split conductors in power transmission and transformation engineering of an electric power system, which is used for fixing the split conductors, increasing the damping of a split conductor-spacer system and inhibiting secondary span oscillation, and belongs to the technical field of electric power fittings.
Background
The conventional split conductor spacer for power transmission and transformation engineering of the power system has the advantages that each fixed arm is mostly equal in arm length, each time the adjacent split conductors are coplanar, and under the specific weather conditions, the downstream split conductor is positioned in the wake of the upstream conductor to generate wind-induced sub-span oscillation; and the conventional spacer is damping in a split conductor-spacer system, provided by material damping of the conductor and the spacer, and limited in damping and vibration absorption effects.
Disclosure of Invention
The purpose is as follows: in order to overcome the defects in the prior art, the invention provides the unequal arm length damping spacer capable of reducing the influence of wake flow on downstream wires, wherein the spacer adopts a mode that the arm lengths of the fixed arms of adjacent split wires are unequal, so that the adjacent wires are different in space, and under the condition of wind and weather, the different-surface arrangement enables the downstream wires to avoid the wake flow of upstream wires, thereby reducing vibration excitation; the spacer adopts a viscous damper mode, so that the damping of a split conductor-spacer system is increased, and the damping and shock absorption effects are enhanced; and each component of the spacer is connected by bolts and fixed between split conductors by wire clamps, so that the spacer is simple in structure and convenient to install.
The technical scheme is as follows: in order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a damping spacer of unequal arm length which characterized in that: the device comprises a long fixed arm, a short fixed arm, a base, a viscous damper and a heavy ball;
the damping spacer base with unequal arm lengths is regular polygon, and long fixing arms and short fixing arms are alternately arranged on the periphery of the base; the center of the base is provided with a heavy ball; the heavy ball is connected with the base through the viscous damper; one end of the viscous damper is fixed on the base, and the other end of the viscous damper is fixed on the heavy ball.
The damping spacer with unequal arm lengths is characterized in that: in the thickness direction of the base, the regular polygon base consists of an upper base plate and a lower base plate, and the fixed arm is fixed between the two base plates through an outer ring bolt; in the plane of the base, the long and short fixing arms are alternately arranged on the periphery of the base along the radial direction of the circumscribing circle of the base; thus, the fixed arms on two adjacent sides of each long fixed arm are short, and the fixed arms on two adjacent sides of each short fixed arm are long.
The damping spacer with unequal arm lengths is characterized in that: in the thickness direction of the base, the regular polygon base consists of an upper base plate and a lower base plate, and the viscous damper sleeve is fixed between the two base plates through an inner ring bolt; in the plane of the base, the viscous damper is radially arranged inside the base along the circumcircle of the base, and the piston connecting rod is fixed with the heavy ball through the fixing buckle.
As a preferable scheme, the damping spacer with unequal arm lengths is characterized in that: when the damping spacers with unequal arm lengths are longitudinally arranged along the split conductor, the damping spacers are alternately arranged according to long and short fixed arms; when the short fixing arm of the spacing rod is fixed on a certain split conductor, the spacing rods on two adjacent sides of the short fixing arm are fixed with the conductor by adopting the long fixing arm; when the long fixing arm of the spacing rod is fixed on a certain split conductor, the spacing rods on two adjacent sides of the long fixing arm are fixed with the conductor by adopting the short fixing arm.
As a preferable scheme, the damping spacer with unequal arm lengths is characterized in that: the base is hollow, and in a balanced state, the center of the heavy ball is positioned at the centers of the two base plates.
The beneficial effects are that: according to the damping spacer with unequal arm lengths, which is provided by the invention, the spacer adopts a mode that the arm lengths of the fixed arms of the adjacent split wires are unequal, so that the adjacent wires are spatially different in surface, and the different surface arrangement enables the downstream wires to avoid the wake flow of the upstream wires, so that vibration excitation is reduced; the spacer adopts a viscous damper mode, so that the damping of a split conductor-spacer system is increased, and the damping and shock absorption effects are enhanced; and the spacer has a simple structure and is convenient and quick to install.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is an installation view of the present invention on a split conductor;
fig. 4 is a side view of the present invention after installation on a split conductor.
In the figure: the device comprises a long fixing arm 1, a short fixing arm 2, a base 3, a viscous damper 4, a heavy ball 5, a split conductor 6a, a split conductor 6b, a split conductor 6c, a split conductor 6d, a split conductor 6e and a split conductor 6f.
Detailed Description
The invention will be further described with reference to specific examples.
The invention provides a damping spacer with unequal arm lengths, which is shown in figures 1 to 4 and comprises a long fixed arm 1, a short fixed arm 2, a base 3, a viscous damper 4 and a heavy ball 5, wherein the damping spacer is connected with the heavy ball 6 and the viscous damper 5 by bolts except for adopting a fixed buckle. The long fixing arm 1 and the short fixing arm 2 of the spacer are fixed with the split conductors 6a, 6b, 6c, 6d, 6e and 6f by using wire clamps.
In this embodiment, the damping spacer with unequal arm lengths has an irregular polygonal structure and a rotationally symmetrical structure, the rotationally symmetrical center is located at the 3-centroid of the base, and the rotation angle depends on the wire splitting number.
Referring to fig. 1-2, in the thickness direction of the base, a regular polygon base 3 is composed of an upper piece and a lower piece, and a long fixing arm 1 and a short fixing arm 2 are fixed between the two pieces of base 3 through an outer ring bolt; in the plane of the base, the long fixed arms 1 and the short fixed arms 2 are alternately arranged on the periphery of the base 3 along the radial direction of the circumcircle of the base 3; thus, the two adjacent side fixing arms of each long fixing arm 1 are short, and the two adjacent side fixing arms of each short fixing arm 2 are long.
Referring to fig. 1-2, in the thickness direction of the bases, the outer ends of the viscous dampers 4 are fixed between the two bases 3 by inner ring bolts; in the plane of the base 3, the viscous damper 4 is radially arranged inside the base 3 along the circumcircle of the base, and the inner end of the viscous damper is fixed with the heavy ball 5 through a fixing buckle.
Referring to fig. 3-4, when the damping spacers with unequal arm lengths are installed along the direction of the split conductor 6, the damping spacers are arranged alternately by the long fixing arms 1 and the short fixing arms 2; when the short fixing arm 2 of the spacing rod is fixed on a certain split conductor, the spacing rods on two adjacent sides of the short fixing arm are fixed with the conductor by adopting the long fixing arm 1; when the long fixing arm 1 of the spacer is fixed on a certain split conductor, the spacers on two adjacent sides of the long fixing arm are fixed with the conductor by adopting the short fixing arm 2, so that the upstream split conductor 6a and the downstream split conductor 6b are in different-surface relations in space, and the upstream split conductor 6c and the downstream split conductor 6d are respectively.
Referring to fig. 1-2, the base 3 is hollow and in equilibrium, the center of the heavy ball 5 is located at the centroid of the two bases 3.
The foregoing is merely exemplary of the invention and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (3)
1. The utility model provides a damping spacer of unequal arm length which characterized in that: the device comprises a long fixed arm, a short fixed arm, a base, a viscous damper and a heavy ball;
the damping spacer base with unequal arm lengths is regular polygon, and long fixing arms and short fixing arms are alternately arranged on the periphery of the base; the center of the base is provided with a heavy ball; the heavy ball is connected with the base through the viscous damper; one end of the viscous damper is fixed on the base, and the other end of the viscous damper is fixed on the heavy ball;
in the thickness direction of the base, the regular polygon base consists of an upper base plate and a lower base plate, and the fixed arm is fixed between the two base plates through an outer ring bolt; in the plane of the base, the long and short fixing arms are alternately arranged on the periphery of the base along the radial direction of the circumscribing circle of the base; thus, the fixed arms on two adjacent sides of each long fixed arm are short, and the fixed arms on two adjacent sides of each short fixed arm are long;
when the damping spacers with unequal arm lengths are longitudinally arranged along the split conductor, the damping spacers are alternately arranged according to long and short fixed arms; when the short fixing arm of the spacing rod is fixed on a certain split conductor, the spacing rods on two adjacent sides of the short fixing arm are fixed with the conductor by adopting the long fixing arm; when the long fixing arm of the spacing rod is fixed on a certain split conductor, the spacing rods on two adjacent sides of the long fixing arm are fixed with the conductor by adopting short fixing arms; spatially, the upstream split conductor is in a non-planar relationship with the downstream split conductor.
2. The unequal arm length spacer damper of claim 1 wherein: in the thickness direction of the base, the regular polygon base consists of an upper base plate and a lower base plate, and the viscous damper sleeve is fixed between the two base plates through an inner ring bolt; in the plane of the base, the viscous damper is radially arranged inside the base along the circumcircle of the base, and the piston connecting rod is fixed with the heavy ball through the fixing buckle.
3. The unequal arm length spacer damper of claim 2 wherein: the base is hollow, and in a balanced state, the center of the heavy ball is positioned at the centers of the two base plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485543.5A CN108347024B (en) | 2018-05-21 | 2018-05-21 | Damping spacer with unequal arm lengths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810485543.5A CN108347024B (en) | 2018-05-21 | 2018-05-21 | Damping spacer with unequal arm lengths |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108347024A CN108347024A (en) | 2018-07-31 |
| CN108347024B true CN108347024B (en) | 2024-03-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810485543.5A Active CN108347024B (en) | 2018-05-21 | 2018-05-21 | Damping spacer with unequal arm lengths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108347024B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347024B (en) * | 2018-05-21 | 2024-03-15 | 南京南瑞继保电气有限公司 | Damping spacer with unequal arm lengths |
| CN109193530B (en) * | 2018-09-25 | 2021-02-09 | 胜利油田恒源电气有限责任公司 | Split conductor support fitting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323424Y (en) * | 2008-12-19 | 2009-10-07 | 中国电力科学研究院 | Mistuning spacer rod device |
| CN203026883U (en) * | 2013-01-06 | 2013-06-26 | 吉林省电力有限公司检修公司 | Damping rubber galloping preventing spacer |
| CN104577923A (en) * | 2014-12-17 | 2015-04-29 | 国网河南省电力公司电力科学研究院 | Quaternary fission type subspan oscillation preventing power transmission line spacer |
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10784670B2 (en) * | 2015-07-23 | 2020-09-22 | At&T Intellectual Property I, L.P. | Antenna support for aligning an antenna |
-
2018
- 2018-05-21 CN CN201810485543.5A patent/CN108347024B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323424Y (en) * | 2008-12-19 | 2009-10-07 | 中国电力科学研究院 | Mistuning spacer rod device |
| CN203026883U (en) * | 2013-01-06 | 2013-06-26 | 吉林省电力有限公司检修公司 | Damping rubber galloping preventing spacer |
| CN104577923A (en) * | 2014-12-17 | 2015-04-29 | 国网河南省电力公司电力科学研究院 | Quaternary fission type subspan oscillation preventing power transmission line spacer |
| CN108347024A (en) * | 2018-05-21 | 2018-07-31 | 南京南瑞继保电气有限公司 | A kind of damping conductor spacer of unequal arm length |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108347024A (en) | 2018-07-31 |
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