CN202978173U

CN202978173U - Damper

Info

Publication number: CN202978173U
Application number: CN 201220695660
Authority: CN
Inventors: 何彦彬; 吕鑫; 窦家本; 贾孟丹
Original assignee: State Grid Corp of China SGCC; Beijing Electric Power Corp
Current assignee: State Grid Corp of China SGCC; Beijing Electric Power Corp
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-06-05
Anticipated expiration: 2022-12-14

Abstract

The utility model provides a damper which comprises a hook body (10), a hammer (12) connected to the hook body (10) through a connecting part (11) and a preformed armor rod (14). The preformed armor rod (14) are wound on a cable (20) along a spiral line to fix the hook body (10) on the cable (20). The damper causes no damage to the cable (20) and connection between the damper and the cable (20) is firmer.

Description

Stockbridge damper

Technical field

The utility model relates to cable vibrationproof technical field, in particular to a kind of stockbridge damper.

Background technology

Domestic phenomenon of setting up ubiquity aeolian vibration on the high-low pressure transmission line, the vibration aerial cable that is in for a long time super scope may make broken cable with the junction friction of tower bar.Especially be arranged on two cables between adjacent shaft tower in the situation that has certain radian under Action of Gravity Field, cable more easily ruptures.In order to prevent the generation of this type of phenomenon, comparatively general way is that stockbridge damper is installed on aerial cable at present, vibrates to suppress, to weaken little wind-induced cable, within making it to drop to the permission limit.Stockbridge damper in the market mainly will be connected with cable with the wire clamp of tup by bolt, because connecting, bolt belongs to hard connection, easily cause cable to damage in the junction, and due to the stockbridge damper Long-term Vibration easily cause bolt looseness cause wire clamp and the cable clamping not tight.

The utility model content

The utility model aims to provide a kind of to not damage and be connected more firmly stockbridge damper with aerial cable of aerial cable.

To achieve these goals, according to an aspect of the present utility model, provide a kind of stockbridge damper, having comprised: Hook; Tup is connected on Hook by connecting portion; Stockbridge damper also comprises: preformed armor rods is wrapped on cable so that Hook is fixed on cable along helix.

Further, Hook is provided with limiting section, and the middle part of preformed armor rods is arranged in limiting section.

Further, limiting section is one or more groups, and every group of limiting section comprises two positive stop strips that are oppositely arranged, and the middle part of preformed armor rods is spacing between two positive stop strips.

Further, two positive stop strips extend along the hand of helix consistent with preformed armor rods.

Further, limiting section is one or more, and each limiting section comprises guide vane end stop, and guide vane end stop has the spacing perforation at the middle part that holds preformed armor rods.

Further, connecting portion is steel wire rope.

Further, stockbridge damper of the present utility model also comprises two tups, and two tups are connected to the both sides of Hook symmetrically by connecting portion.

Use the technical solution of the utility model, the winding by preformed armor rods is fixed on Hook on cable, because tup is connected with Hook by connecting portion, like this, has just completed stockbridge damper fixing on cable.Stockbridge damper of the present utility model can be to cable injury and more firm with being connected of cable.

Description of drawings

The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:

Fig. 1 shows the structural representation according to the embodiment of stockbridge damper of the present utility model;

Fig. 2 shows the A-A of stockbridge damper of Fig. 1 to generalized section, and is wherein succinct for making schematic diagram, the clipped hatching; And

Fig. 3 shows the schematic top plan view of the stockbridge damper of Fig. 1, not shown cable and preformed armor rods.

Embodiment

Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.

As shown in figures 1 and 3, the stockbridge damper of the present embodiment comprises: Hook 10, tup 12 and preformed armor rods 14.Tup 12 is connected to the upper of Hook 10 by connecting portion.Preformed armor rods 14 is wrapped on cable 20 so that Hook 10 is fixed on cable 20 along helix.

The winding of crossing preformed armor rods 14 is fixed on Hook 10 on cable 20, because tup 12 is connected with Hook by connecting portion 11, like this, has just completed stockbridge damper fixing on cable 20.Stockbridge damper of the present utility model can be to cable 20 injuries and more firm with being connected of cable 20.

Preferably, the stockbridge damper of the present embodiment comprises that 12, two tups 12 of two tups are connected to the both sides of Hook 10 symmetrically by connecting portion 11.The Hook 10 of the present embodiment is provided with limiting section, and the middle part of preformed armor rods 14 is arranged in limiting section.Preferably, the material of preformed armor rods 14 is the aluminium coated steel pre-stranded wire.Preformed armor rods 14 is arranged in limiting section, Hook 10 more firmly can be fixed on cable 20, and then improve vibration-isolating effect.

As depicted in figs. 1 and 2, wherein, Fig. 2 only shows the hatching of cable 20 and connecting portion, the hatching of not shown Hook 10, preformed armor rods 14 and positive stop strip 13.Preformed armor rods 14 is preferred adopts two, and the limiting section of the stockbridge damper of the present embodiment is two groups, and every group of limiting section comprises two positive stop strips 13 that are oppositely arranged, and the middle part of each preformed armor rods 14 is spacing between two positive stop strips 13 corresponding with it.Preferably, two positive stop strips 13 extend along the hand of helix consistent with preformed armor rods 14.Certainly, limiting section also can be one group, at this moment, a plurality of preformed armor rodses 14 can be arranged between two positive stop strips 13 of this group limiting section simultaneously.

In not shown embodiment, limiting section is a plurality of, and each limiting section comprises guide vane end stop, and guide vane end stop has the spacing perforation at the middle part that holds preformed armor rods 14.Certainly, limiting section also can be one, at this moment, a plurality of preformed armor rodses 14 can be arranged in the spacing perforation of guide vane end stop simultaneously.

The connecting portion of the present embodiment is steel wire rope.Certainly, connecting portion can be also any in steel strand wire, elastic steel strip or spring.

The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. stockbridge damper comprises:

Hook (10);

Tup (12) is connected on described Hook (10) by connecting portion (11);

It is characterized in that, described stockbridge damper also comprises:

Preformed armor rods (14) is wrapped in cable (20) along helix upper so that described Hook (10) is fixed on described cable (20).

2. stockbridge damper according to claim 1, is characterized in that, described Hook (10) is provided with limiting section, and the middle part of described preformed armor rods (14) is arranged in described limiting section.

3. stockbridge damper according to claim 2, it is characterized in that, described limiting section is one or more groups, and every group of described limiting section comprises two positive stop strips (13) that are oppositely arranged, and the middle part of described preformed armor rods (14) is spacing between two described positive stop strips (13).

4. stockbridge damper according to claim 3, is characterized in that, two described positive stop strips (13) extend along the hand of helix consistent with described preformed armor rods (14).

5. stockbridge damper according to claim 2, is characterized in that, described limiting section is one or more, and each described limiting section comprises guide vane end stop, and described guide vane end stop has the spacing perforation at the middle part that holds described preformed armor rods (14).

6. stockbridge damper according to claim 1, is characterized in that, described connecting portion (11) is steel wire rope.

7. stockbridge damper according to claim 1, is characterized in that, also comprises two described tups (12), and two described tups (12) are connected to the both sides of described Hook (10) symmetrically by described connecting portion (11).