CN101901650B

CN101901650B - Disk insulator

Info

Publication number: CN101901650B
Application number: CN2010102362507A
Authority: CN
Inventors: 成柏生
Original assignee: Jurong Huayang Electrical Appliances Co ltd
Current assignee: Jurong Huayang Electrical Appliances Co ltd
Priority date: 2010-07-26
Filing date: 2010-07-26
Publication date: 2012-05-30
Anticipated expiration: 2030-07-26
Also published as: CN101901650A

Abstract

The invention discloses a disk insulator. The insulator comprises an annular body, wherein a group of upper ribs taking the circle center of the annular body as the circle center is arranged on the upper surface of the annular body along a radial direction, and a group of lower ribs which is the same as the group of upper ribs is arranged on the lower surface of the annular body; the upper ribs and the lower ribs are arranged in a staggered way; and an equalizing ring is arranged at the inner edge of the annular body, and a plurality of fixing grooves are arranged at the outer edge of the annular body. The disk insulator has the advantages of reasonable structure, stable electromechanical property and long service life.

Description

A kind of disk insulator

Technical field

The present invention relates to a kind of insulator, is a kind of disk insulator specifically.

Background technology

Insulator is a kind of special insulation control, can in overhead transmission line, play an important role.Insulator is used for electric pole more, slowly develops in an end of high type high-tension bus-bar connection tower to have hung the insulator of a lot of plate-likes, and it is processed by glass or pottery in order to increase creepage distance usually, just is insulator.Insulator plays two basic roles in overhead transmission line; Be support wire and prevent that electric current from going back to ground; These two effects must be guaranteed; Insulator should be owing to environment and the electric loading condition various dynamo-electric stress that causes that changes lose efficacy, otherwise insulator just can not produce great function, will damage the use and the service life of whole piece circuit.

Insulator can be divided into pillar (pillar) insulator, suspension insulator, anti-pollution type insulator and bushing insulator by structure.Used insulator in the overhead transmission line, commonly used have pin insulator, shackle insulator, suspension insulator, porcelain pole arm, rod insulator and a strain insulator etc.Insulator commonly used now has: ceramic insulator, glass fibre reinforced plastic insulating, synthetic insulator, semiconducting insulation.

Adhere at insulator surface in order to prevent filths such as floating dust; Form path and be insulated sub-voltage puncture; Promptly creepage. so increase surface distance; Be creep distance, the distance of discharging along insulating surface is that leakage distance is creep distance. creep distance=surface distance/system's ceiling voltage. and different according to pollution level, the general employing in heavy pollution area creep distance is 31 millimeters/every kilovolt.

When using long excellent porcelain insulator, need SC in transportation and installation process; Because porcelain spare is big and stupid, when transportation and installation, the danger that collision is arranged and damage; If the inner minute defects that produces in the manufacture process; Be in operation; The long term of thermal-mechanical stress can reduce the mechanical strength of insulator, and during line walking to the observation of long excellent porcelain insulating substring with detect and can't find faulty insulator, can cause porcelain spare accident to fracture like this and lead lands.

Summary of the invention

Goal of the invention: in order to overcome the deficiency that exists in the prior art, of the present invention be for provide a kind of rational in infrastructure, electromechanical properties stable and the disk insulator of long service life.

Technical scheme: for realizing above-mentioned technical problem; The technical scheme that the present invention adopts is: a kind of disk insulator; Comprise annular body; On the upper surface of annular body and radially be provided with one group with the annular body center of circle be the center of circle on fin, on lower surface, be provided with one group of following fin identical with last fin, saidly go up fin and following fin is staggered; Be provided with a plurality of holddown grooves on grading ring, its outer edges being equipped with on the annular body inward flange.

The effect of grading ring is in order to make magnetic field even among the present invention; Last fin and following fin are staggered, and can increase the creep distance of this insulator, the stablizing of electromechanical properties that so just can insulator, thus can improve its useful life, so can guarantee using and improving service life of whole piece circuit.

The said fin of going up comprises first fin, second fin and the 3rd fin, and first fin and the second fin height equate that the 3rd fin has four to equate highly and be arranged between first fin and second fin that the height of the 3rd fin is less than the first fin height.

The said fin of going up comprises 4 high fins and 3 low fins, and each low fin is located between per two high fins.

On said annular body and be provided with a plurality of fixing holes near the annular body inside edge.

Said fixing hole is a screwed hole.

Beneficial effect: compared with prior art, advantage of the present invention is the stable and long service life of rational in infrastructure, electromechanical properties.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the present invention;

Fig. 2 be among Fig. 1 A-A to cutaway view;

Fig. 3 is the structural representation of another kind of embodiment of the present invention;

Fig. 4 be among Fig. 1 B-B to cutaway view.

Embodiment

Below in conjunction with accompanying drawing the present invention is done explanation further.Be noted that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Embodiment one:

Disk insulator as depicted in figs. 1 and 2; It comprises annular body 1; On the upper surface of annular body 1 and radially be provided with one group with annular body 1 center of circle be the center of circle on fin; Should go up fin and comprise that first fin 4, second fin 5 were highly equal with second fin 5 with the 3rd fin 6, the first fins 4, the 3rd fin 6 have four highly equal and be arranged between first fin 4 and second fin 5; The height of the 3rd fin 6 is less than the first fin height 4, and the height size of the spacing between per two fins and first fin 4, second fin 5 and the 3rd fin 6 can decide according to this insulator environment for use; Be provided with fin under a group on the lower surface of annular body 1, it is identical with above-mentioned last fin to arrange in the shape of this time fin, position, and the said fin of going up is staggered with following fin; Be provided with a plurality of holddown grooves 3 on stainless steel grading ring 2, its outer edges being equipped with on the inward flange of annular body 1.On annular body 1 and be provided with a plurality of screw thread fixing holes 9 near annular body 1 inside edge.

Embodiment two:

Like Fig. 3 and disk insulator shown in Figure 4; It comprises annular body 1; On the upper surface of annular body 1 and radially be provided with one group with annular body 1 center of circle be the center of circle on fin; Should go up fin and comprise 4

high fins

7 and 3 low fins 8, each low fin 8 is located between per two high fins 7, and the height size of spacing between per two fins and low fin 8, high fin 7 can decide according to this insulator environment for use; On the lower surface of annular body 1, be provided with one group of following fin identical with last fin, the said fin of going up is staggered with following fin; Be provided with a plurality of holddown grooves 3 on stainless steel grading ring 2, its outer edges being equipped with on the inward flange of annular body 1.On annular body 1 and be provided with a plurality of screw thread fixing holes 9 near annular body 1 inside edge.

Claims

1. disk insulator; It is characterized in that: comprise annular body (1); On the upper surface of annular body (1) and radially be provided with one group with annular body (1) center of circle be the center of circle last fin, on lower surface, be provided with one group of following fin identical with last fin, said on fin and following fin be staggered; On annular body (1) inward flange, be equipped with and be provided with a plurality of holddown grooves (3) on grading ring (2), its outer edges.

2. a kind of disk insulator according to claim 1; It is characterized in that: the said fin of going up comprises first fin (4), second fin (5) and the 3rd fin (6); First fin (4) is highly equal with second fin (5); The 3rd fin (6) has four, highly equates and is arranged between first fin (4) and second fin (5), and the height of the 3rd fin (6) is less than the first fin height (4).

3. a kind of disk insulator according to claim 1 is characterized in that: the said fin of going up comprises 4 high fins (7) and 3 low fins (8), and each low fin (8) is located between per two high fins (7).

4. a kind of disk insulator according to claim 1 is characterized in that: go up and be provided with a plurality of fixing holes (9) near annular body (1) inside edge in said annular body (1).

5. a kind of disk insulator according to claim 4 is characterized in that: said fixing hole (9) is a screwed hole.