CN201018243Y

CN201018243Y - Anti-vibration hammer

Info

Publication number: CN201018243Y
Application number: CNU2007200484024U
Authority: CN
Inventors: 朱砚
Original assignee: Guangzhou XYHY Electric Power Line Equipment Co Ltd
Current assignee: Guangzhou Xinyuan Hengye Power Transmission Device Co., Ltd.
Priority date: 2007-02-07
Filing date: 2007-02-07
Publication date: 2008-02-06
Anticipated expiration: 2017-02-07

Abstract

The utility model discloses a shockproof hammer that is hung on a power transmission line, which comprises a hammer body, a steel strand, a sleeve and a main body of wire clamp. The sleeve is bushed to the external of the steel strand; holes are drilled in the hammer body; the steel strand that presses the sleeve is pressed into the hammer body; the steel strand can be directly cast inside the main body of the wire clamp and integrates with the latter. Compared with present art, the utility mode has the advantages of preventing loosen strand, rust and resisting the erosion.

Description

Stockbridge damper

Technical field

The utility model relates to a kind of stockbridge damper, more specifically relates to a kind of stockbridge damper that is suspended on the transmission line.

Background technology

Gentle breeze vibrations be built on stiltsly lead, the principal mode of ground wire vibrations, also be the vibrations that harmfulness is arranged most of the most frequent appearance.Cause the wire strand fracture by gentle breeze vibrations, be referred to as " fatigue " phenomenon, its result that to be lead produce under repeated stress effect repeatedly.For repairing, bring very big difficulty for the circuit run unit, and suffer enormous economic loss by the harness damage that fatigue caused.The correct stockbridge damper of design effect generally can make vibrations stress reduce more than 90%, and this is that stockbridge damper and lead produce the effect of damping power under the condition of harmonic shock.

Prolonging the steel strand wire that the former stockbridge damper with many decades adopts is galvanized strand wiress, use the zinc-plated twisted wire of proof about about 10 years according to reality in useful life on the overhead transmission line, and be about 30 years the useful life of power transmission aluminum stranded wire and iron tower, thus the strand structure product need change twice could be synchronous with power transmission aluminum stranded wire, iron tower life-span.Aspect the stockbridge damper manufacturing process, its tup finally is connected with steel strand wire and has defective in addition, i.e. be pressed into tup perforation after steel strand wire and the sleeve pipe compression, then on the tup top the compacting of sleeve pipe flange, be coated with zinc rich paint then.Because technology is unreasonable, the compacting difficulty puts in place, connects looseningly herein in circuit frequent generation in service, and tup comes off, or gets rusty herein and cause that tup comes off, and has lost the vibrations effect, causes interruption of service and enormous economic loss.And there is concave and convex phenomenon on the surface after the flange compacting of termination, anticorona poor performance.

The utility model content

The stockbridge damper of advantages such as the purpose of this utility model is to overcome the defective that prior art exists, and provides a kind of more reliable and more stable, and has locking strand, and is antirust, corrosion-resistant.

For achieving the above object, the utility model has been taked following technical scheme:

Stockbridge damper comprises hammer body and steel strand wire, it is characterized in that also comprising sleeve pipe and wire clamp main body; Casing pipe sleeve is located at outside the steel strand wire; Hammer body inside is drilled with the hole, and the steel strand wire that press sleeve pipe are then compressed into hammer body; The wire clamp main body is with the moulding of Al-alloy metal die cast, the online clip main body of steel strand wire direct pouring inside, and become one with the wire clamp main body.

In the technique scheme, the stainless steel pin is housed also in sleeve pipe, has a blind hole on the hammer body, the stainless steel pin vertically inserts blind hole and the riveted joint with it on the hammer body.

As improvement of the technical scheme, described sleeve pipe employing is decided journey technology sleeve pipe is pressed into hexagon, makes sleeve pipe hold steel strand wire.

As the further improvement of such scheme, described steel strand wire are zinc-aluminium rareearth alloy coated steel strand wires.

In the technique scheme, described wire clamp main body comprises the wire clamp pressing plate, knee-piece, six pin hook bolts, plain cushion, securing members such as bullet pad and six pin head nuts.

Compared with prior art, the utility model comprises following beneficial effect:

1. advantages such as steel strand wire of the present utility model are zinc-aluminium rareearth alloy coated steel strand wires, quote new raw material, have locking strand, and are antirust, corrosion-resistant, and guarantee that stockbridge damper is more reliable and more stable;

2. the utility model directly puts sleeve pipe behind the severing steel strand wire, thereby has avoided steel strand wire stressed pine thigh when severing, decides journey technology in employing then sleeve pipe is pressed into six sides, makes sleeve pipe hold steel strand wire;

3. wire clamp main body of the present utility model with the online clip main body of steel strand wire direct pouring inside, becomes one steel strand wire and wire clamp main body with the moulding of Al-alloy metal die cast, and is in conjunction with closely, reliable and stable; Can reach 5.3KN through testing its grip force, be 2.1 times of setting;

4. hammer body internal bore of the present utility model will be decided journey technology with the steel strand wire employing that presses sleeve pipe and be compressed into hammer body.Vertically insert riveted joint with the stainless steel pin then; Hammer body does not drill through the hole, has avoided contacting with the external world and is subjected to corrosion such as atmosphere; The riveted joint of stainless steel pin, Stability Analysis of Structures is reliable; Grip reaches 8.4KN through between test hammer body and steel strand wire, is 1.5 times of setting.

5. the utility model is at pressing plate, knee-piece, and six pin hook bolts, plain cushion under the securing member pressure such as bullet pad and six pin head nuts, is held lead, makes it loosening, not slippage.

Description of drawings

Fig. 1 is the structural representation of one of implementation of the present utility model;

Fig. 2 is the structural representation of the wire clamp main body of one of implementation of the present utility model;

Fig. 3 is two a structural representation of implementation of the present utility model;

Fig. 4 is the structural representation of two wire clamp main body of implementation of the present utility model.

Embodiment

The utility model will be further described below in conjunction with Figure of description.

Shown in Fig. 1～4: stockbridge damper, comprise hammer body 3 and steel strand wire 2, it is characterized in that also comprising sleeve pipe 4 and wire clamp main body 6; Sleeve pipe 4 is set in outside the steel strand wire 2; Hammer body inside is drilled with the hole, and the steel strand wire that press sleeve pipe are then compressed into hammer body; The 6 usefulness Al-alloy metal die cast moulding of wire clamp main body, the online clip main body of steel strand wire 2 direct pourings inside, and become one with the wire clamp main body.

In the technique scheme, stainless steel pin 5 is housed also in sleeve pipe, has a blind hole on the hammer body, the stainless steel pin vertically inserts blind hole and the riveted joint with it on the hammer body.This connection has avoided original tup termination compaction process to press the unreal or defectives such as causing the tup loose or dislocation of getting rusty.Owing to do not drill the hole, must the flange compacting, end face is the smooth full surface of semi-round ball, has avoided the generation of corona fully.

In the technique scheme, described wire clamp main body comprises wire clamp pressing plate 7, knee-piece 8, six pin hook bolts 9, plain cushion 10, securing members such as bullet pad 11 and six pin head nuts 12.

Stockbridge damper of the present utility model is suspended on the transmission line by lead 1 and uses.

Stockbridge damper of the present utility model has more reliable and more stable, and has locking strand, and is antirust, the corrosion-resistant technological merit that waits.

Our company's zinc-aluminium rareearth alloy coated steel strand wires and with riveting for press new technology to adopt at the stockbridge damper of dozens of kind comprehensively, annual production reaches more than 200 tons, surplus the output value 3,000,000 yuan, more than 1500 kilometer of the construction of line.Obtained affirming and favorable comment of user, for due contribution has been made in China's power construction.

Because of the Guangdong weather conditions special, acid rain pollution, dust pollution and corroded by sea wind, traditional stockbridge damper can't satisfy the demand of transmission line high speed development, for this reason, my company in Guangdong and the coastal region adopt the zinc-aluminium rareearth alloy coated steel strand wires stockbridge damper comprehensively, overcome surplus China nearly 50 the some shortcomings part of year using stockbridge damper, be subjected to users certainly and praise.

Claims

1. stockbridge damper comprises hammer body and steel strand wire, it is characterized in that also comprising sleeve pipe and wire clamp main body; Casing pipe sleeve is located at outside the steel strand wire; Hammer body inside is drilled with the hole, and the steel strand wire that press sleeve pipe are then compressed into hammer body; The online clip main body of steel strand wire direct pouring inside, and become one with the wire clamp main body.

2. stockbridge damper according to claim 1 is characterized in that the stainless steel pin also is housed in sleeve pipe, has a blind hole on the hammer body, and the stainless steel pin vertically inserts blind hole and the riveted joint with it on the hammer body.

3. stockbridge damper according to claim 2 is characterized in that described sleeve pipe is pressed into hexagon.

4. according to claim 1 or 2 or 3 described stockbridge dampers, it is characterized in that described steel strand wire are zinc-aluminium rareearth alloy coated steel strand wires.

5. according to claim 1 or 2 or 3 described stockbridge dampers, it is characterized in that described wire clamp main body comprises the wire clamp pressing plate, knee-piece, six pin hook bolts, plain cushion, bullet pad and six pin head nuts.

6. stockbridge damper according to claim 4 is characterized in that described wire clamp main body comprises the wire clamp pressing plate, knee-piece, six pin hook bolts, plain cushion, bullet pad and six pin head nuts.