CN103021596A

CN103021596A - Manufacturing method of disc suspended composite insulator

Info

Publication number: CN103021596A
Application number: CN2012105730637A
Authority: CN
Inventors: 宋利强; 游传榜
Original assignee: HEBEI SILICON VALLEY CHEMICAL CO Ltd
Current assignee: HEBEI SILICON VALLEY CHEMICAL CO Ltd
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-04-03

Abstract

The invention relates to a manufacturing method of a disc suspended composite insulator. The manufacturing method includes the steps of firstly, selecting a disc suspended composite insulators satisfying the required mechanical load level and comprising a steel cap, a porcelain core and a steel pin, designing the size and number of external insulator sheds according to the specification of the disc suspended composite insulator and the size of the porcelain core; secondly, disintegrating external insulators, in different shed shapes, of the disc suspended composite insulator into mutually independent units, prefabricating the units into shed components by corresponding moulds with silicone rubber, and ensuring the inner diameter of each shed component to be 95%-99% of the outer diameter of the porcelain core; thirdly, fixing the porcelain core on a fixture, coating the surface of the porcelain core with silicone rubber adhesive, and sleeving and adhering the shed components to the porcelain core one by one; and fourthly, vulcanizing to form the disc suspended composite insulator with the inner insulating porcelain core and the outer insulating silicone rubber. The manufacturing method is simple and high in production efficiency with yield up to 100%.

Description

The manufacture method of disc suspension composite insulator

Technical field

The invention belongs to the T ﹠ D Technology field, relate to a kind of manufacture method of disc suspension composite insulator.

Background technology

Composite rod insulator is with advantages such as its lightweight and anti-fouling flashover performance are good, widely applies in the interchange of China's electrical network difference electric pressures, DC power transmission line.Traditional porcelain insulator and glass insulator just more and more are restricted owing to the low deficiency of resistant level.

The fatigue behaviour of the anti-mechanical oscillation of composite rod insulator and aeolian vibration is troubling problem always, and the creep of the attachment section between the end hardware of transmission mechanical load is a large mortal wound especially.Therefore, adopt the identical mechanical load transfer mode of traditional porcelain insulator, take the identical silastic material of composite rod insulator full skirt as outer insulator, just overcome well the shortcoming of composite rod insulator, bring into play again the superiority of anti-pollution flashover, guaranteed large mechanical load and fatigue proof security reliability.

ZL02270625.9 discloses " a kind of composite suspended pot shaped isolator ", is the porcelain core of gold utensil seat and gold utensil pull bar, and outer surface has one deck silastic-layer and stretches out protection plate.At present, known manufacture method is that porcelain core is in mould, by high temperature, high-pressure injection parcel silicon rubber.Because porcelain core and gold utensil seat between (claim not only steel cap) and the gold utensil pull bar (but also claiming the steel pin) employing be cement, thermal coefficient of expansion between three kinds of materials is different, ceramic material is frangible in addition, therefore the rate of finished products of high temperature, high-pressure injection parcel silicon rubber is very low, generally about 60% ~ 70%, quality is unstable, and internal damage is difficult for detecting, manufacturing cost is high, and the wasting of resources is large.

Summary of the invention:

In order to overcome the shortcoming of prior art, the invention provides a kind of manufacture method of disc suspension composite insulator, its method is simple, and production efficiency is high, and rate of finished products can reach 100%.

The present invention solves the technical scheme that its technical problem takes: comprise the following steps: 1), select to meet the disc suspension composite insulator of required mechanical load grade, the disc suspension composite insulator comprises steel cap 1, porcelain core 2 and steel pin 3, according to size and the quantity of the size design outer insulator full skirt of disc suspension composite insulator specification and porcelain core 2; 2), the outer insulator with the disc suspension composite insulator of different umbellate forms is decomposed into separately independently unit by the full skirt number, pre-formed in corresponding mould with silicon rubber is the full skirt assembly, the internal diameter size of each full skirt assembly is 95% ~ 99% of porcelain core outside dimension, utilizes the elasticity interference fit of silicon rubber when being convenient to assemble; 3), at the fixing porcelain core 2 of tooling machine, at porcelain core 2 surface-coated silicon rubber bonders, the full skirt assembly be set with one by one be bonded on the porcelain core 2; 4), sulfuration, insulation is the disc suspension composite insulator of outer insulator for porcelain core, silicon rubber in forming.

The inventive method is simple, and production efficiency is high, and rate of finished products can reach 100%, and stable and reliable product quality economizes on resources.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the two umbellate form disc suspension composite insulator assembling of the present invention first artwork;

Fig. 2 is the two umbellate form disc suspension composite insulator assembling of the present invention second artwork;

Fig. 3 is the present invention's three umbellate form disc suspension composite insulators assembling first artwork;

Fig. 4 is the present invention's three umbellate form disc suspension composite insulators assembling second artwork;

Fig. 5 is the two umbellate form disc suspension composite insulator moulding cutaway views of the present invention;

Fig. 6 is the present invention's three umbellate form disc suspension composite insulator moulding cutaway views.

Embodiment

Embodiment 1 is the manufacture method of two umbellate form disc suspension composite insulators: comprise the following steps: 1), select to meet the disc suspension composite insulator of required mechanical load grade, the disc suspension composite insulator comprises steel cap 1, porcelain core 2 and steel pin 3, outer insulator full skirt quantity is two, namely goes up full skirt 4 and lower full skirt 5.2), with upper full skirt 4 and lower full skirt 5 usefulness silicon rubber pre-formed in corresponding mould be the full skirt assembly, the internal diameter size of each full skirt assembly is 95% ~ 99% of porcelain core outside dimension, utilizes the elasticity interference fit of silicon rubber when being convenient to assemble.3), at the fixing porcelain core 2 of tooling machine, at porcelain core 2 surface-coated silicon rubber bonders, upper full skirt 4 is bonded on the porcelain core 2, as shown in Figure 1.4), the disc suspension composite insulator of bonding upper full skirt 4 turns over turnback and fixes, lower full skirt 5 is bonded on the porcelain core 2, as shown in Figure 2.The finished product of making as shown in Figure 5.5), sulfuration, insulation is the disc suspension composite insulator of outer insulator for porcelain core, silicon rubber in forming.

Embodiment 2 is the manufacture method of three umbellate form disc suspension composite insulators: comprise the following steps: 1), select to meet the disc suspension composite insulator of required mechanical load grade, the disc suspension composite insulator comprises steel cap 1, porcelain core 2 and steel pin 3, outer insulator full skirt quantity is two, namely goes up full skirt 4, middle full skirt 6 and lower full skirt 5.2), with upper full skirt 4, middle full skirt 6 and lower full skirt 5 usefulness silicon rubber pre-formed in corresponding mould be the full skirt assembly, the internal diameter size of each full skirt assembly is 95% ~ 99% of porcelain core outside dimension, utilizes the elasticity interference fit of silicon rubber when being convenient to assemble.3), at the fixing porcelain core 2 of tooling machine, at porcelain core 2 surface-coated silicon rubber bonders, upper full skirt 4 is bonded on the porcelain core 2, as shown in Figure 3.4), the disc suspension composite insulator of bonding upper full skirt 4 turns over turnback and fixes, middle full skirt 6 and lower full skirt 5 are bonded on the porcelain core 2, as shown in Figure 4 successively.The finished product of making as shown in Figure 6.5), sulfuration, insulation is the disc suspension composite insulator of outer insulator for porcelain core, silicon rubber in forming.

Claims

1. the manufacture method of a disc suspension composite insulator, it is characterized in that: comprise the following steps: 1), select to meet the disc suspension composite insulator of required mechanical load grade, the disc suspension composite insulator comprises steel cap (1), porcelain core (2) and steel pin (3), according to size and the quantity of the size design outer insulator full skirt of disc suspension composite insulator specification and porcelain core (2); 2), the outer insulator with the disc suspension composite insulator of different umbellate forms is decomposed into separately independently unit by the full skirt number, pre-formed in corresponding mould with silicon rubber is the full skirt assembly, the internal diameter size of each full skirt assembly is 95% ~ 99% of porcelain core outside dimension, utilizes the elasticity interference fit of silicon rubber when being convenient to assemble; 3), at the fixing porcelain core (2) of tooling machine, at porcelain core (2) surface-coated silicon rubber bonder, the full skirt assembly be set with one by one be bonded on the porcelain core (2); 4), sulfuration, insulation is the disc suspension composite insulator of outer insulator for porcelain core, silicon rubber in forming.