CN201601450U

CN201601450U - Preformed damper

Info

Publication number: CN201601450U
Application number: CN2009202333988U
Authority: CN
Inventors: 薛济萍; 薛驰; 冒新国; 刘丽君; 李新春
Original assignee: Jiangdong Fittings Equipment Co Ltd
Current assignee: Jiangdong Fittings Equipment Co Ltd
Priority date: 2009-08-06
Filing date: 2009-08-06
Publication date: 2010-10-06
Anticipated expiration: 2019-08-06

Abstract

A preformed damper relates to a protection tool for absorbing aerial cable vibration energy, and is particularly adaptable to anti-vibration devices for special-type lines such as soft aluminum conducting lines and the like. The preformed damper comprises a wire clamp, a preformed wire, a steel strand, a large damper head and a small damper head; a hooked sleeve is arranged on the upper portion of the wire clamp; a locking groove is arranged on the head portion of the wire clamp; a through hole is arranged on the lower portion of the wire clamp; the hooked sleeve on the upper portion of the wire clamp is sleeved onto a wire cable; the preformed wire penetrating through the locking groove on the upper portion of the wire clamp is fixedly connected with the wire cable; and the steel strand penetrating into the through hole arranged on the lower portion of the wire clamp is fixed in compression joint manner, thereby the steel strand can not move inside the through hole. Two outer ends of the steel strand penetrate out of the through hole arranged on the lower portion of the wire clamp; one outer end is long; the other outer end is short; the long end extends into a bottom hole of the large damper head; the short end extends into a bottom hole of the small damper head; and the long end and the short end are adhered through bonding adhesives. The preformed damper is designed to enable the frequency coverage area of the damper to be wider and achieve better high-frequency response, and can meet the requirement of special-type anti-vibration power, thereby ensuring safe line running.

Description

Pre-Cutter-Type Anti-Vibration Hammer

Technical field

What the preformed stockbridge damper of the utility model related to is a kind of protection instrument that absorbs the aerial cable vibrational energy, is specially adapted to novel lead and lightguide cable link etc.

Background technology

Present domestic transmission line mainly is to make somebody a mere figurehead on the Zai Gan Ta, certainly leads to certain sag on the span between two shaft towers.Owing to be subjected to the influence of aeolian vibration, surpassing the stockbridge damper that some must be installed on the circuit of 200m span.Yet along with the appearance of new special lead, the past more and more can not have been satisfied the needs of circuit vibrationproof with the rigidly connected stockbridge damper of bolt.At first, it can occur slippage in various degree on the line, has a strong impact on vibration-isolating effect.Fatigue protection to cable is bad, and long-term the use in the inner meeting of wire clamp phenomenon of rupture occur in wire clamp inside, can directly influence the useful life of wire line.Secondly, thisly be rigidly connected greatlyyer, produce very big concentrated stress for the lateral pressure of cable, slippage for a long time, circuit weares and teares very big.Once more, be exactly that it uses bolt to connect, for work high above the ground, installation is very inconvenient.

Summary of the invention

The purpose of this utility model is to provide a kind of preformed stockbridge damper at above-mentioned weak point; can reduce existing stockbridge damper to the big problem of the local compression of cable; becoming bolted is rigidly connected to flexibly connecting; outer field rubber has good buffer protection function to lead, has reduced the wearing and tearing of cable.The phenomenon of slippage that preformed structure has effectively prevented existing stockbridge damper because screw is loosening.Novel tup design makes territory, stockbridge damper frequency coverage wider, and high frequency response is better, can satisfy extraordinary vibrationproof power requirement, thereby has guaranteed the line security operation.

Pre-Cutter-Type Anti-Vibration Hammer is to take following scheme to realize: Pre-Cutter-Type Anti-Vibration Hammer comprises wire clamp, preformed armor rods, steel strand wire, big tup and little tup.Wire clamp top is provided with the hook-shape body cover, and the wire clamp head is provided with draw-in groove, and the wire clamp bottom is provided with through hole, and the hook-shape body condom on wire clamp top is on cable, and preformed armor rods passes wire clamp top draw-in groove fixedlys connected with cable; Steel strand wire are set in the wire clamp bottom and are provided with in the through hole, and crimping is fixed, to such an extent as to steel strand wire can be in through hole play.Steel strand wire pass the wire clamp bottom and are provided with two outer ends of through hole one is long and the other is short, stretch into the bottom outlet of big tup at its long end, and its short end stretches into bottom outlet of little tup, and by connecting glue bond.Described preformed armor rods is made up of 3 aluminium Baogang monofilament.Described wire clamp top is provided with the hook-shape body cover and forms the hook groove, and cable is contained in the hook groove of wire clamp.

The wire clamp of Pre-Cutter-Type Anti-Vibration Hammer is according to mechanics principle and preformed armor rods radian principle design, similar and comb shape, and wire clip body is an aluminium material; Described wire clamp is wrapped with rubber layer, forms preformed chuck.

Operation principle: lead vibration on the line passes to steel strand wire by the stockbridge damper wire clamp, and steel strand wire pass to tup, and stockbridge damper reaches vibration-isolating effect by absorbing energy.

Because the utility model Pre-Cutter-Type Anti-Vibration Hammer adopts wire clamp to add preformed armor rods with the cable ways of connecting, it has the benefit of the following aspects: 1, preformed armor rods has outstanding anti-fatigue performance, can block the slippage of the wire clamp left and right sides, so just prevent stockbridge damper effectively because bolt looseness and slippage influences vibration-isolating effect.2, preformed armor rods is the preform spiral curve, and it can be distributed to the static pressure stress to lead in the bigger zone uniformly, has reduced local compression, becomes bolted being rigidly connected to flexibly connecting, and has strengthened the self-damping of cable.3, online chuck portion is surrounded by very thin one deck rubber, allows wire clamp make contact to for soft with the rigidity of lead and contacts, and does not influence vibration-isolating effect again, and uses for a long time and more the situation that rubber comes off can not occur, and cable is had good buffer protection function.Can better be applicable to the new special lead, as the antihunting device of cables such as soft aluminum conductor.4, with the fixedly connected tup of special gelatin and steel strand wire, thereby avoided causing vibration loss, directly influenced the vibration-isolating effect of stockbridge damper because crimping is tight or long-play and produce the gap.5, novel 4D tup design, from the vibrationproof principle of stockbridge damper deeply analyze, research and design, better meet the needs of circuit vibrationproof.The territory, frequency coverage is wider, and high frequency response is better, can satisfy extraordinary vibrationproof power requirement, thereby has guaranteed the line security operation.6, free-hand installation does not need special instrument.

Description of drawings

Fig. 1 is a kind of execution mode structural representation of Pre-Cutter-Type Anti-Vibration Hammer.

Fig. 2 is a kind of execution mode structure vertical view of Pre-Cutter-Type Anti-Vibration Hammer.

Fig. 3 is the end view of a kind of execution mode structure of Pre-Cutter-Type Anti-Vibration Hammer.

Fig. 4 is the axis side view that waits of a kind of execution mode structure of Pre-Cutter-Type Anti-Vibration Hammer.

Embodiment

With reference to accompanying drawing 1～4, Pre-Cutter-Type Anti-Vibration Hammer comprises wire clamp 3, preformed armor rods 1, steel strand wire 4, big tup 5 and hand hammer head 2.Wire clamp 3 tops are provided with hook-shape body cover 8, and wire clamp 3 heads are provided with draw-in groove 7, and the wire clamp bottom is provided with through hole 10, and the hook-shape body cover 8 on wire clamp 3 tops is enclosed within on the cable 6, and preformed armor rods 1 passes wire clamp 3 top draw-in grooves 7 fixedlys connected with cable 6; Steel strand wire 4 are set in the wire clamp bottom and are provided with in the through hole 10, and crimping is fixed, to such an extent as to steel strand wire 4 can be in through hole play.Steel strand wire 4 pass the wire clamp bottom and are provided with two outer ends of through hole 10 one is long and the other is short, stretch into the bottom outlet of big tup 2 at its long end, and its short end stretches into bottom outlet of hand hammer head 3, and by connecting glue bond.Described preformed armor rods 1 is made up of 3 aluminium Baogang monofilament.Described wire clamp 3 tops are provided with hook-shape body cover 8 and form hook groove 9, and cable 6 is contained in the hook groove 9 of wire clamp.

The wire clamp of Pre-Cutter-Type Anti-Vibration Hammer is according to mechanics principle and preformed armor rods radian principle design, similar and comb shape, and wire clip body is an aluminium material; Described wire clamp is wrapped with rubber layer, forms preformed chuck.Described big tup 5 and hand hammer head 2 are tuning fork shape.

Described big tup 5 and hand hammer head 2 weight proportions are 2: 1.

Claims

1. a Pre-Cutter-Type Anti-Vibration Hammer is characterized in that comprising wire clamp, preformed armor rods, steel strand wire, big tup and little tup; Wire clamp top is provided with the hook-shape body cover, and the wire clamp head is provided with draw-in groove, and the wire clamp bottom is provided with through hole, and the hook-shape body condom on wire clamp top is on cable, and preformed armor rods passes wire clamp top draw-in groove fixedlys connected with cable; Steel strand wire are set in the wire clamp bottom and are provided with in the through hole, and crimping is fixed; Steel strand wire pass the wire clamp bottom and are provided with two outer ends of through hole one is long and the other is short, stretch into the bottom outlet of big tup at its long end, and its short end stretches into bottom outlet of little tup, and by connecting glue bond.

2. Pre-Cutter-Type Anti-Vibration Hammer according to claim 1 is characterized in that described preformed armor rods is made up of 3 aluminium Baogang monofilament.

3. Pre-Cutter-Type Anti-Vibration Hammer according to claim 1 is characterized in that described wire clamp top is provided with the hook-shape body cover and forms the hook groove, and cable is contained in the hook groove of wire clamp.

4. Pre-Cutter-Type Anti-Vibration Hammer according to claim 1 is characterized in that described big tup and little tup are tuning fork shape.

5. Pre-Cutter-Type Anti-Vibration Hammer according to claim 1 is characterized in that described wire clamp head skin is surrounded by rubber layer.

6. Pre-Cutter-Type Anti-Vibration Hammer according to claim 1 is characterized in that the nose heave amount proportioning of described big tup and hand hammer is 2: 1.