CN203839893U - Shockproof hammer for overhead line - Google Patents

Abstract

A shockproof hammer for an overhead line relates to the cable and wire vibration-proof field, and provides a shockproof hammer for an overhead line. The shockproof hammer is stable in structure and easy for processing. After the shockproof hammer is installed, a steel strand in the shockproof hammer is identical in direction and height of the axis of a cable to further eliminate the cable vibration. The shockproof hammer comprises a wire clamp, a steel strand, a large hammerhead and a small hammerhead, wherein the steel strand is inserted in the wire clamp, and the two ends of the steel strand are respectively connected with the large hammerhead and the small hammerhead. The mass of the large hammerhead is greater than that of the small hammerhead, and the distance between the gravity center of the large hammerhead and the center of the wire clamp is greater than the distance between the gravity center of the small hammerhead and the center of the wire clamp. The shockproof hammer is stable in structure, simple in processing means, wide in application scope and excellent in use effect.

Description

Overhead transmission line stockbridge damper

Technical field

The utility model relates to cable, electric wire vibrationproof field, relates in particular to the improvement of cable, electric wire stockbridge damper.

Background technology

At present, the cable that set up open air, electric wire etc. exist the phenomenon because of wind vibration conventionally, if cable, electric wire are vibrated by this type of for a long time, will have a strong impact on the bonding strength of its joint, the serious even appearance phenomenon such as disconnect coming off.To this, State Bureau announced the document that a by name " stockbridge damper ", application number are " 02218511.9 " on December 18th, 2002, and this case has disclosed the stockbridge damper that a kind of large and small tup not waited by two weight and steel strand wire, wire clamp form.Yet, people find when using, cable is installed under surplus affects by gravity and self, it is conventionally a recessed arc between adjacent two electric poles, and above-mentioned stockbridge damper can keep level after installation, the direction of axis line that is steel strand wire in stockbridge damper and cable is inconsistent, thus cannot effectively eliminate cable, electric wire because of wind vibration problem.

Utility model content

The utility model is for above problem, proposed a kind of Stability Analysis of Structures, processing mode is easy, and after installation, steel strand wire are wherein consistent with the direction of axis line height of cable, and then effectively eliminates the overhead transmission line stockbridge damper of strum.

The technical solution of the utility model is: comprise wire clamp, steel strand wire, large tup and little tup, described steel strand wire middle part is located in described wire clamp and the two ends of steel strand wire connect respectively large tup and little tup, the quality of described large tup is greater than the quality of described little tup, the spacing at the center of gravity of little tup and the center of described wire clamp described in the spacing > at the center of gravity of described large tup and the center of described wire clamp.

Described large tup is the U-shaped opening of U-shaped and large tup towards described wire clamp, and described little tup is the U-shaped opening of U-shaped and little tup towards described wire clamp.

Described large tup offers through hole one away from one end of described wire clamp, in described through hole one, be equipped with steel pipe one, described steel pipe one is regular polygon and is fastened in described through hole one, one end of described steel strand wire be located in described steel pipe one and with described steel pipe one interference fit;

Described little tup offers through hole two away from one end of described wire clamp, in described through hole two, be equipped with steel pipe two, described steel pipe two is regular polygon and is fastened in described through hole two, one end of described steel strand wire be located in described steel pipe two and with described steel pipe two interference fit.

During the actual use of the utility model, can to the position of wire clamp, adjust according to the recessed degree (radian) of on-site cable, and guarantee all the time the center of gravity of the little tup of spacing > at the center of gravity of large tup and the center of wire clamp and the spacing at the center of wire clamp, thereby effectively make this case after installing, the length direction of the steel strand wire direction of axis line current with cable keeps highly consistent, and then the high frequency trace vibration on cable is absorbed, eliminated.There is Stability Analysis of Structures, processing mode is easy, applied widely, result of use is good feature.

Main Function of the present utility model is prevent and eliminate strum and the safeguard measure that adopts; large and small tup is the weight by certain mass; zinc-plated steel strand wire have higher elasticity and intensity, and the weakening performance of stockbridge damper is relevant with effective operating frequency of stockbridge damper.Its principle is exactly that the relative motion that is suspended on the stockbridge damper on cable has absorbed vibrational energy when producing vibration, thereby reduces and eliminated the vibration of cable.

The tup of different quality for steel strand wire two ends in the utility model, hitch point is not isometric apart from steel strand wire two ends yet, this structure, can obtain 4 fixed frequencies, the frequency of its adaptation is wider, when manufacturing and designing, tup is cast with the pig iron U-shaped, to prevent that when the dither, tup touches and is ground to steel strand wire.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model,

Fig. 2 is the left view of Fig. 1,

Fig. 3 is the vertical view of Fig. 1;

In figure, 1 is wire clamp, the 2nd, and steel strand wire, the 3rd, large tup, the 31st, steel pipe one, 4th, little tup.

Embodiment

The utility model as Figure 1-3, comprise wire clamp 1, steel strand wire 2, large tup 3 and hand hammer head 4, described steel strand wire 2 middle parts are located in described wire clamp 1 and the two ends of steel strand wire 2 connect respectively large tup 3 and hand hammer head 4, the quality of described large tup 3 is greater than the quality of described hand hammer head 4, the spacing at the center of gravity of hand hammer head 4 and the center of described wire clamp 1 described in the spacing > at the center of the center of gravity of described large tup 3 and described wire clamp 1.

Described large tup 3 is the U-shaped opening of U-shaped and large tup 3 towards described wire clamp 1, and described hand hammer head 4 is the U-shaped opening of U-shaped and hand hammer head 4 towards described wire clamp 1.Large and small tup is all made as to U-shaped and can effectively reduces the wearing and tearing of high frequency large and small tup of when vibration trace to steel strand wire, thereby significantly promote useful life and the result of use of this case integral body.

Described large tup 3 offers through hole one away from one end of described wire clamp 1, in described through hole one, be equipped with steel pipe 1, described steel pipe 1 is regular polygon and engaging (two ends compress lead sealing again) in described through hole one, one end of described steel strand wire 2 be located in described steel pipe 1 and with described steel pipe one 31 interference fit;

Described hand hammer head 4 offers through hole two away from one end of described wire clamp 1, in described through hole two, be equipped with steel pipe two, described steel pipe two is regular polygon and engaging (two ends compress lead sealing again) in described through hole two, one end of described steel strand wire 2 be located in described steel pipe two and with described steel pipe two interference fit.

The connected mode of above-mentioned large and small tup and steel strand wire has (material price is low) with low cost, simple, the efficient feature of processing mode.

Claims (2)

1. overhead transmission line stockbridge damper, comprise wire clamp, steel strand wire, large tup and little tup, described steel strand wire middle part is located in described wire clamp and the two ends of steel strand wire connect respectively large tup and little tup, the quality of described large tup is greater than the quality of described little tup, the spacing at the center of gravity of little tup and the center of described wire clamp described in the spacing > at the center of gravity of described large tup and the center of described wire clamp; It is characterized in that,

Described large tup offers through hole one away from one end of described wire clamp, in described through hole one, be equipped with steel pipe one, described steel pipe one is regular polygon and is fastened in described through hole one, one end of described steel strand wire be located in described steel pipe one and with described steel pipe one interference fit;

Described little tup offers through hole two away from one end of described wire clamp, in described through hole two, be equipped with steel pipe two, described steel pipe two is regular polygon and is fastened in described through hole two, one end of described steel strand wire be located in described steel pipe two and with described steel pipe two interference fit.

2. overhead transmission line stockbridge damper according to claim 1, is characterized in that, described large tup is the U-shaped opening of U-shaped and large tup towards described wire clamp, and described little tup is the U-shaped opening of U-shaped and little tup towards described wire clamp.