CN101807780A

CN101807780A - Anti-vibration hammer for high-voltage power transmission lines

Info

Publication number: CN101807780A
Application number: CN200910025011A
Authority: CN
Inventors: 姚建生
Original assignee: JIANGSU TIANNAN POWER EQUIPMENT CO Ltd
Current assignee: Jiangsu Tiannan Electric Power Co., Ltd
Priority date: 2009-02-16
Filing date: 2009-02-16
Publication date: 2010-08-18
Anticipated expiration: 2029-02-16
Also published as: CN101807780B

Abstract

The invention relates to an anti-vibration hammer for high-voltage power transmission lines, in particular for power transmission and distribution lines in power industry, comprising a wire clip, two hammer bodies, a steel stranded wire and at least one pre-stranded wire, wherein the wire clip is fixedly connected with the steel stranded wire and is in the form of a sea horse-shaped structure; the two hammer bodies are in the form of a dumbbell-shaped structure and are symmetrically, obliquely and fixedly arranged on both ends of the steel stranded wire; and the connecting positions of the steel stranded wire and the hammer bodies are arranged on the side surfaces of hammer head at the fixed ends of the hammer bodies. Because partitioning nails are arranged on the wire clip and the pre-stranded wires are respectively arranged on the wire clip at intervals, the anti-vibration hammer and a power transmission cable are effectively connected; because the two hammer bodies are symmetrically and obliquely fixed on both ends of the steel stranded wire, the anti-vibration hammer absorbs different-frequency vibration to prolong the surface life of the lines; because the hammer bodies are designed into a dumbbell shape and windward surfaces are arranged on the hammer heads at the cantilever ends, the anti-vibration hammer has better vibration reduction effect, improves corona voltage and reduces marginal discharge; and because the circular-arc smoothing treatment is carried out on the surfaces of the hammer bodies, the anti-vibration hammer improves the integral performance and reduces pollution flashover.

Description

Anti-vibration hammer for high-voltage power transmission lines

Technical field

The present invention relates to a kind of antihunting device that the power industry electric line is used, the stockbridge damper that specifically a kind of extra high voltage network is used.

Background technology

Relevant by retrieval patent documentation does not retrieve be used for the stockbridge damper that ultra-high-tension power transmission line use identical with structure of the present invention at present as yet.Stockbridge damper has been widely used in overhead transmission line as a kind of vibration absorber of electric line.Have stockbridge damper now owing to its structural reason, its profile is clumsy, and is difficult to eliminate the deposition of water and ice, easily produces phenomenons such as point discharge, sudden strain of a muscle dirt simultaneously under the superhigh pressure state.The ZL200720039659.3 of the patentee's application, name is called: the anti-slip type stockbridge damper, aspects such as deposition at vibration-isolating effect, elimination water and ice are greatly improved, but along with improving constantly of transmission voltage, how improving the deposition of corona voltage, elimination point discharge and water and ice has higher requirement to people, so be necessary existing stockbridge damper is improved, so that satisfy actual needs better.

Summary of the invention

The objective of the invention is to provide a kind of improvement on existing stockbridge damper basis, have dependable performance, can apply to the anti-vibration hammer for high-voltage power transmission lines of electric line under the high pressure conditions.

To achieve these goals, the present invention is by the following technical solutions:

Anti-vibration hammer for high-voltage power transmission lines is made up of wire clamp, hammer body, steel strand wire, at least one preformed armor rods, wire clamp installs with steel strand wire and is connected, two hammer bodies are packed in the two ends of steel strand wire respectively, preformed armor rods is used for wire clamp is fixed on power transmission line, described wire clamp is a hippocampus shape version, and wire clamp is provided with 1～6 and separates nail; Described hammer body is a dumbbell shaped version, and two hammer body symmetries tilt to be packed on the two ends of steel strand wire; The link position of steel strand wire and hammer body is arranged on the side of stiff end tup of hammer body.

Described hammer body is made up of stiff end tup, coupling part, cantilever end tup, and the angle α between line between its stiff end tup and the cantilever end tup hammer heart and the steel strand wire between vertical plane is: 10 °≤α≤15 °; Angle β between line between the stiff end tup and the cantilever end tup hammer heart and the steel strand wire between horizontal plane is: 5 °≤β≤10 °; Described cantilever end tup is provided with windward side a, and the angle γ between windward side a and the vertical plane is: 25 °≤γ≤40 °, windward side a takes circular arc to be connected with the cantilever end tup, and its R is: 5mm≤R≤15mm.

The big footpath D of the stiff end tup in the described hammer body ₁With the big footpath D of cantilever end tup ₂Between ratio L be: 1.2≤L≤1.6.

During use, the wire clamp of stockbridge damper is hung on the installation site of design appointment in the circuit, and make the present invention be in the nature plumbness, takes out the separation that a preformed armor rods aims at wire clamp with the sign of central authorities and follow closely on the centre position, and preformed armor rods is wrapped on the lead; Repeat above-mentioned action, more other two preformed armor rodses are wrapped in respectively on wire clamp and the transmission pressure, thereby stockbridge damper is fixed.

Two hammer bodies symmetry tilts to be fixed on the two ends of steel strand wire, its objective is to producing multifrequency resonance, absorbs the vibration of different frequency, prevents that the lead fatigue damage is provided with; The stiff end tup of hammer body is provided with the windward side, its objective is to improving the ability of facining the wind of hammer body, eliminating to absorb the different frequency vibration and be provided with; The design of the link position of steel strand wire and hammer body its objective is and is convenient to eliminate water and ice deposition and is provided with on the side arc surface of hammer body stiff end tup; The big footpath of the stiff end tup of hammer body is controlled within certain proportion with the big footpath of cantilever end tup, its objective is that better raising ability to work designs; The cantilever end tup is provided with the windward side, and makes the windward side of two hammer bodies be arranged to the opposite face position, its objective is that circuit vibration that crosswind brings is provided with in order to eliminate; Being connected between the windward side of cantilever end tup and the tup is circular-arc, its objective is in order to eliminate point discharge design.

Advantage of the present invention is: separate nail because wire clamp is provided with 1-6, and with preformed armor rods respectively the interval on wire clamp, thereby stockbridge damper and power transmission cable effectively are intertwined and connected; Because two hammer bodies symmetry tilts to be fixed on the two ends of steel strand wire, thereby the vibration that can produce multiple different frequency absorbs the different frequency vibration, has prevented the fatigue rupture of lead effectively, has prolonged the useful life of circuit; Because hammer body is designed to dumbbell shaped, and is provided with the windward side on the cantilever end tup, thereby make whole effectiveness in vibration suppression better, improved the corona voltage grade simultaneously, reduced point discharge; Because the circular arc smooth treatment has been carried out on the hammer body surface, thereby has improved whole performance, has reduced pollution flashover; Owing to take preformed armor rods to be intertwined and connected, thereby make the easy for installation, quick of stockbridge damper; Since rational in infrastructure, easy to install, so very big practical and popularizing value is arranged.

Description of drawings

Below with reference to accompanying drawing the present invention is further described:

Accompanying drawing 1 is the structural representation of anti-vibration hammer for high-voltage power transmission lines of the present invention;

Accompanying drawing 2 is vertical views of accompanying drawing 1;

Accompanying drawing 3 is structural representations of accompanying drawing 1A-A section;

Embodiment

With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, anti-vibration hammer for high-voltage power transmission lines of the present invention is made up of wire clamp 1, hammer body 2, steel strand wire 3, at least one preformed armor rods 4, and the preformed armor rods 4 of present embodiment is three; Wire clamp 1 installs with steel strand wire 3 and is connected, two hammer bodies 2 are packed in the two ends of steel strand wire 3 respectively, and preformed armor rods 4 is used for wire clamp 1 is fixed on power transmission line, and described wire clamp 1 is a hippocampus shape version, wire clamp 1 is provided with 1～6 and separates nail 11, and the separation nail 11 of present embodiment is 4; Described hammer body 2 is a dumbbell shaped version, and two hammer body 2 symmetries tilt to be packed on the two ends of steel strand wire 3; The link position of steel strand wire 3 and hammer body 2 is arranged on the side of stiff end tup 21 of hammer body 2; Described hammer body 2 is made up of stiff end tup 21, coupling part 22, cantilever end tup 23, angle α between line between its stiff end tup 21 and the cantilever end tup 23 hammer hearts and the steel strand wire 3 between vertical plane is: 10 °≤α≤15 °, the α of present embodiment is 12 °; Angle β between line between the stiff end tup 21 and the cantilever end tup 23 hammer hearts and the steel strand wire 3 between horizontal plane is: 5 °≤β≤10 °, the β of present embodiment is 8 °; Described cantilever end tup 23 is provided with windward side a, and the angle γ between windward side a and the vertical plane is: 25 °≤γ≤40 °, the γ of present embodiment is 30 °; Windward side a takes circular arc to be connected with cantilever end tup 23, and its R is: 5mm≤R≤15mm, the R of present embodiment are 8mm; The big footpath D of the stiff end tup 21 in the described hammer body 2 ₁With cantilever end tup 23 big footpath D ₂Between ratio L be: 1.2≤L≤1.6, the L of present embodiment is 1.5.

Claims

1. anti-vibration hammer for high-voltage power transmission lines is made up of wire clamp (1), hammer body (2), steel strand wire (3), at least one preformed armor rods (4), wire clamp (1) installs with steel strand wire (3) and is connected, two hammer bodies (2) are packed in the two ends of steel strand wire (3) respectively, preformed armor rods (4) is used for wire clamp (1) is fixed on power transmission line, it is characterized in that: described wire clamp (1) is hippocampus shape version, and wire clamp (1) is provided with 1～6 and separates nail (11); Described hammer body (2) is a dumbbell shaped version, and two hammer bodies (2) symmetry tilts to be packed on the two ends of steel strand wire (3); The link position of steel strand wire (3) and hammer body (2) is arranged on the side of stiff end tup (21) of hammer body (2).

2. anti-vibration hammer for high-voltage power transmission lines according to claim 1, it is characterized in that: described hammer body (2) is made up of stiff end tup (21), coupling part (22), cantilever end tup (23), and the angle α between line between its stiff end tup (21) and cantilever end tup (23) the hammer heart and the steel strand wire (3) between vertical plane is: 10 °≤α≤15 °; Angle β between line between the stiff end tup (21) and cantilever end tup (23) the hammer heart and the steel strand wire (3) between horizontal plane is: 5 °≤β≤10 °; Described cantilever end tup (23) is provided with windward side a, and the angle γ between windward side a and the vertical plane is: 25 °≤γ≤40 °, windward side a takes circular arc to be connected with cantilever end tup (23), and its R is: 5mm≤R≤15mm.

3. anti-vibration hammer for high-voltage power transmission lines according to claim 1 is characterized in that: the big footpath D of the stiff end tup (21) in the described hammer body (2) ₁With the big footpath of cantilever end tup (23) D ₂Between ratio L be: 1.2≤L≤1.6.