CN201163713Y

CN201163713Y - Hook type shockproof hammer

Info

Publication number: CN201163713Y
Application number: CNU2008200317702U
Authority: CN
Inventors: 薛济萍; 薛驰; 冒新国; 平亚锦
Original assignee: Jiangsu Zhongtian Technology Co Ltd
Current assignee: Jiangsu Zhongtian Technology Co Ltd
Priority date: 2008-02-04
Filing date: 2008-02-04
Publication date: 2008-12-10
Anticipated expiration: 2018-02-04

Abstract

The utility model provides a hook type damper, relating to a protection tool for absorbing vibrational energy of an overhead cable, which is particularly applied to a hook type damper used for optical cable lines. The structure of the hook type damper comprises a hook, a prereeled wire, a steel stranded wire, a big hammer head and a small hammer head, wherein the hook body on the upper part of the hook is sleeved on the cable, and the upper part of the hook body of the hook is provided with a through hole; the prereeled wire is inserted in the through hole in the upper part of the hook and fixed with the cable; and the lower part of the hook is provided with a through hole, the middle part of the steel stranded wire is fixed in the through hole in the lower part of the hook, and both ends of the steel stranded wire are inserted in inner bottoms of the big hammer head and the small hammer head respectively and fixed by bonding resin. The hook type damper of the utility model can solve the problem of large local compressive stress of the cable caused by the prior damper, the rigid connection of the bolt connection is changed into the flexible connection, thereby enhancing the self-damping of the cable and effectively preventing the phenomenon of the sliding of the damper due to loose screws in the prior damper; moreover, the hook type damper has wide frequency covering area and good high-frequency response, and can meet the power requirements of the special shake resistance, so that the safe operation of the line is ensured.

Description

Hook vibration prevention hammer

Technical field

What the utility model hook vibration prevention hammer related to is a kind of protection instrument that absorbs the aerial cable vibrational energy, is specially adapted to the lightguide cable link hook vibration prevention hammer.

Background technology

Domestic setting up on the high low-voltage transmission line led, ground wire is erected between the shaft tower, and certain sag is arranged.Because the influence that the long-term wind-engaging of circuit shakes, this connected mode to stockbridge damper has proposed very high request.Existing stockbridge damper primary structure is to adopt clamping plate to add bolt to be connected with cable.Screw can appear in this connected mode for a long time under aeolian vibration loosening, and institute is installed in and leads, the stockbridge damper on the ground wire is in the phenomenon of circuit frequent appearance in service to line span centre slippage.Therefore, stockbridge damper does not have it should vibration-isolating effect, has directly influenced normal operation and circuit useful life on defeated modified line road on the contrary.And this screw bolt-type connected mode belongs to and be rigidly connected, and is bigger to cable-side pressure, cause easily stress concentrate and cable injured.

Summary of the invention

The utility model purpose is to provide a kind of hook vibration prevention hammer at above-mentioned weak point, is a kind of novel stockbridge damper, and vibration-isolating effect is good, and is a kind of stockbridge damper of antiskid.

Hook vibration prevention hammer is to take following scheme to realize: the hook vibration prevention hammer structure comprises hook, preformed armor rods, steel strand wire, big tup and little tup; The coupler body on hook top is enclosed within on the cable, and hook coupler body top is provided with through hole, and preformed armor rods is through in the through hole of hook top fixedlys connected with cable; The hook bottom is provided with through hole, and the steel strand wire middle part is fixed in the through hole of hook bottom, and the interior end of large and small tup is stretched at the steel strand wire two ends respectively, and fixedly connected by connecting glue.

Because the utility model hook vibration prevention hammer adopts hook to add preformed armor rods with the cable ways of connecting, preformed armor rods has outstanding anti-fatigue performance, and the utility model can prevent effectively that existing stockbridge damper is owing to bolt looseness and slippage influences vibration-isolating effect like this.Preformed armor rods is the preform spiral curve, it can be distributed to the static pressure stress to lead in the bigger zone uniformly, reduced local compression, become bolted being rigidly connected, strengthened the self-damping of cable, and directly can free-hand installation not need special instrument to flexibly connecting, the territory, frequency coverage is wider, high frequency response is better, can satisfy extraordinary vibrationproof power requirement, has guaranteed the line security operation.

Description of drawings

The utility model is described in further detail below with reference to accompanying drawing.

Fig. 1 is a kind of execution mode structural representation of hook vibration prevention hammer.

A kind of execution mode structure vertical view of Fig. 2 hook vibration prevention hammer.

A kind of execution mode structure left view of Fig. 3 hook vibration prevention hammer.

Embodiment

With reference to accompanying drawing 1～3, the hook vibration prevention hammer structure comprises hook 3, preformed armor rods 1, steel strand wire 4, big tup 2 and hand hammer head 5; The coupler body of linking up with 3 tops is enclosed within on the cable 6, links up with 3 coupler body tops and is provided with through hole, and preformed armor rods 1 is through in the hook 3 top through holes fixedlys connected with cable 6.The hook bottom is provided with through hole, and steel strand wire 4 are set in this through hole, form between the two closely to cooperate so that steel strand wire 4 can be in through hole play.Steel strand wire 4 pass two outer ends of through hole, and one is long and the other is short, stretches into the bottom outlet of big tup 2 at its long end, and its short end stretches into bottom outlet of hand hammer head 5, and by connecting glue bond.Described preformed armor rods 1 is made up of 3 aluminium Baogang monofilament.Described hook 3 forms the hook groove, and cable 6 is contained in the hook groove of hook 3.

Claims

1, a kind of hook vibration prevention hammer is characterized in that the hook vibration prevention hammer structure comprises hook, preformed armor rods, steel strand wire, big tup and little tup; The coupler body on hook top is enclosed within on the cable, and hook coupler body top is provided with through hole, and preformed armor rods is through in the through hole of hook top fixedlys connected with cable; The hook bottom is provided with through hole, and the steel strand wire middle part is fixed in the through hole of hook bottom, and the interior end of large and small tup is stretched at the steel strand wire two ends respectively, and fixedly connected by connecting glue.

2, hook vibration prevention hammer according to claim 1 is characterized in that described preformed armor rods is made up of 3 aluminium Baogang monofilament.

3, hook vibration prevention hammer according to claim 1 is characterized in that described hook forms the hook groove, and cable is contained in the hook groove of hook.