CN111063495B

CN111063495B - Combined insulator

Info

Publication number: CN111063495B
Application number: CN201911393863.9A
Authority: CN
Inventors: 黄凯; 牛丙震; 徐天锡; 于洋; 张世彪; 郝泉; 邢艺欣; 张丽莉; 焦波; 王凯; 周诚
Original assignee: Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-10-22
Anticipated expiration: 2039-12-30
Also published as: CN111063495A

Abstract

The invention relates to a combined insulator, and belongs to the technical field of high-voltage wire auxiliary parts. The invention solves the problems that the existing insulator has insufficient tensile strength and the physical resistance needs to be improved. The invention comprises an insulator body for electric isolation; the positioning tables are arranged on two sides of the insulator body and used for clamping and positioning the insulator body; a reinforcing ring which is tensioned between the positioning tables and becomes an internal reinforcing rib; the umbrella skirt is sleeved outside the insulator body and the reinforcing ring and provides protection for the insulator body and the reinforcing ring; the lightning protection voltage ring group is arranged on the outer side of the positioning table and used for performing a lightning protection function; the positioning table on the front side is provided with a mounting seat for fixing a high-voltage wire; a fixed seat for installing and positioning the insulator is arranged on the positioning table at the rear side; the reinforcing rings are uniformly arranged in a plurality.

Description

Combined insulator

Technical Field

The invention relates to a combined insulator, and belongs to the technical field of high-voltage wire auxiliary parts.

Background

The transmission line is an important component of the power system, is a main artery of the power system, and is used for connecting a power grid and transmitting electric energy. The transmission line is often required to be exposed in the field, even to cross a mountain for field opening and extending longitudinally and transversely, the probability of being attacked by thunder in a thunderstorm season is high, and line lightning protection is always a key and difficult problem concerned by the industry. Meanwhile, the transmission line is required to have better support and can not be corroded and oxidized after being exposed for a long time, at present, the transmission line generally adopts insulators to perform the functions of lightning protection and strength support, and the insulators are required to have high strength and need to be used for a long time and support a high-voltage wire. The main function of the insulator is to achieve electrical insulation and mechanical fixation, for which various electrical and mechanical properties are specified. For example, under the action of specified operating voltage, lightning overvoltage and internal overvoltage, breakdown or flashover along the surface does not occur: no damage or destruction occurs under the specified long-term and short-term mechanical loading: after long-term operation under defined mechanical, electrical loads and various environmental conditions, no significant deterioration occurs: at present, the insulator is mostly formed by direct casting, the replacement and the replacement of parts are often difficult to carry out, and the electricity-proof effect and the mechanical property also need to be further improved.

Disclosure of Invention

The invention aims to overcome the defects of the existing insulator and provides a combined insulator, wherein an insulator body is fixedly installed through a positioning table, meanwhile, the mechanical properties of the insulator such as support, tensile strength and the like are provided for the insulator body through a reinforcing ring, the mechanical properties of the insulator are improved, a lightning protection voltage ring group is arranged for lightning protection, and various indexes of the insulator are further improved.

The invention is realized by adopting the following technical scheme: a combined insulator, comprising: an insulator body for electrical isolation;

the setting is in the both sides of insulator body and presss from both sides the location platform of tight location to it: a reinforcing ring which is tensioned between the positioning tables and becomes an internal reinforcing rib;

the cover is established insulator body and reinforce the full skirt in the ring outside and for it provides the protection: establish the lightning protection voltage ring group that the locating station outside is used for carrying on the lightning protection effect: the positioning table on the front side is provided with a mounting seat for fixing a high-voltage wire; rear side the location bench on be equipped with the fixing base that is used for installing the location to the insulator: the reinforcing rings are uniformly arranged in a plurality.

The insulator body in the middle of the both ends location platform is fixed to provide stronger holding power and pliability for it through reinforceing the ring, this external umbrella skirt of insulator can the mode pouring of moulding plastics on the insulator body, and will reinforce the ring and mould plastics to the material of moulding plastics in the middle of, use as the strengthening rib, provide higher intensity and toughness when connecting the both sides location platform, the lightning protection voltage ring group can be better the impact of release thunder and lightning, avoid producing the influence to the circuit. The positioning table on the two sides can be taken down to be replaced, the lightning protection voltage ring group can also be taken down, replacement is convenient, and the service life of the insulator is prolonged.

Furthermore, the reinforcing ring is annularly arranged, is hooked in a U-shaped groove of the positioning table which is oppositely arranged, and is used for tensioning and positioning the positioning table. Furthermore, the positioning table is provided with a mounting hole for fixing the mounting seat and the fixing seat, the positioning table is further provided with a positioning hole, a positioning pin shaft is mounted in the positioning hole, and the mounting seat and the fixing seat are positioned on the positioning table through the positioning pin shaft.

Furthermore, the lightning protection voltage ring group comprises an upper pressure ring sleeved outside the front side positioning table and a lower pressure ring sleeved outside the rear side positioning table; go up the clamping ring and pass through the mount pad spacing, the back is taken off to the mount pad, it can dismantle and change to go up the clamping ring, it is spacing that the clamping ring passes through the fixing base down, and the fixing base is taken off the back, the clamping ring can be dismantled and change down.

Go up the clamping ring with the clamping ring is all at the rotatable dismantlement in the outside of location platform down.

Furthermore, the outer edge of the upper pressure ring and the outer edge of the lower pressure ring are both inclined inwards, so that a lightning discharge channel is provided for lightning.

Furthermore, the outer edge of the upper pressing ring and the outer edge of the lower pressing ring are designed in a tooth shape, and a drainage channel can be formed better through a tooth-shaped structure at the front end.

Furthermore, the umbrella skirt comprises a plurality of groups of umbrella skirt groups, and each umbrella skirt group consists of a large-diameter umbrella skirt and a small-diameter umbrella skirt.

The invention has the beneficial effects that:

the combined insulator is provided with the plurality of groups of reinforcing rings, better tensile resistance and toughness can be well provided for the insulator through the reinforcing rings, and the reinforcing rings also pull the positioning tables on the two sides on the insulator body, so that the matching is tighter, and the mechanical performance of the insulator is further improved;

according to the combined insulator, the upper compression ring is limited through the mounting seat, after the mounting seat is taken down, the upper compression ring can be detached and replaced, the lower compression ring is limited through the fixing seat, and after the fixing seat is taken down, the lower compression ring can be detached and replaced, so that a wearing part can be replaced conveniently, and the service life of the insulator is prolonged;

the combined insulator is provided with the positioning table, the insulator body is buckled in the middle of the positioning table and is tensioned and positioned through the reinforcing ring, and the positioning tables at the two ends are also provided with the mounting holes and the positioning holes, so that the mounting seat and the fixing seat on the outer side can be conveniently assembled and disassembled.

Drawings

Fig. 1 is a perspective view of the inside of an insulator according to an embodiment of the present invention:

fig. 2 is a perspective view of an insulator according to an embodiment of the present invention:

fig. 3 is a front view of an insulator according to an embodiment of the present invention:

FIG. 4 is a cross-sectional view of FIG. 3A-A:

in the figure: 1. a positioning table: 2. a reinforcing ring: 3. insulator body: 4. umbrella skirt: 5. and (3) pressing a ring: 6. a lower pressure ring: 7. a mounting seat: 8. fixing a base: 9. mounting holes: 10. and (7) positioning the holes.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1 to 4, the combined insulator of the present invention includes: insulator body for electrical isolation 3: the setting is in insulator body 3's both sides and to its location platform 1 that presss from both sides tight location: a reinforcing ring 2 tensioned between the positioning tables 1 as an internal reinforcement: the cover is established insulator body 3 and the umbrella skirt 4 who strengthens the 2 outsides of ring and provide the protection for it: establish and be used for carrying on the lightning protection voltage ring group of lightning protection electric action outside the location platform 1: the positioning table 1 on the front side is provided with a mounting seat 7 for fixing a high-voltage wire; rear side location platform 1 on be equipped with the fixing base 8 that is used for installing the location to the insulator: the reinforcing rings 2 are uniformly arranged in plurality. The reinforcing ring 2 is annularly arranged, and the reinforcing ring 2 is hooked in a U-shaped groove of the positioning table 1 which is oppositely arranged and used for tensioning and positioning the positioning table 1. The positioning table 1 is provided with a mounting hole 9 for fixing the mounting seat 7 and the fixing seat 8, the positioning table 1 is further provided with a positioning hole 10, a positioning pin shaft is arranged in the positioning hole 10, and the mounting seat 7 and the fixing seat 8 are fixed through the positioning pin shaft

The location is on location platform 1, lightning protection voltage ring group establish last clamping ring 5 in the front side location platform 1 outside including the cover, establish the rear side with the cover the lower clamping ring 6 in the location platform 1 outside: the upper pressing ring 5 and the lower pressing ring 6 are both rotated outside the positioning table 1. The outer edge of the upper pressure ring 5 and the outer edge of the lower pressure ring 6 are both inclined inwards, so that a lightning discharge channel is provided for lightning.

The outer edge of the upper pressure ring 5 and the outer edge of the lower pressure ring 6 are designed in a tooth shape, so that lightning can be discharged from the tooth shape conveniently.

The umbrella skirt 4 include multiunit umbrella skirt group, umbrella skirt group all has a major diameter umbrella skirt and a minor diameter umbrella skirt to constitute, is convenient for carry out dirt-proof processing.

The use process of the invention is as follows:

install fixing base 8 in supporting the position during use, be connected with high-tension line through mount pad 7, the last clamping ring 5 and the lower clamping ring 6 in the outside can provide the thunder and lightning earial drainage route when the thunder and lightning is beaten, prevent that the thunder and lightning from destroying the insulator, the umbrella skirt 4 in the outside can be better provide protection and support, avoid inboard insulator body 3 to be corroded and oxidation: during the equipment, need through location platform 1 centre gripping insulator body 3 to through the reinforcing ring 2 in the outside with the pulling of both sides location platform 1 close, compress tightly insulator body 3 in the middle of location platform 1, then with the full skirt 4 pouring in the outside of insulator body 3, and will strengthen the centre that ring 2 cladding is in the pouring thing, make to strengthen ring 2 and become inboard strengthening rib, improve holistic mechanical properties, especially tensile strength and toughness. The invention is mainly applied to places where high-voltage lines need insulation support.

Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.

Claims

1. A combined insulator, comprising:

insulator body (3) for electrical isolation:

the positioning tables (1) are arranged on two sides of the insulator body (3) and used for clamping and positioning the insulator body;

a reinforcing ring (2) which is tensioned between the positioning tables (1) and becomes an internal reinforcing rib;

an umbrella skirt (4) sleeved outside the insulator body (3) and the reinforcing ring (2) and providing protection for the insulator body and the reinforcing ring;

the lightning protection voltage ring group is arranged on the outer side of the positioning table (1) and used for performing a lightning protection function;

the positioning table (1) on the front side is provided with a mounting seat (7) for fixing a high-voltage wire;

a fixed seat (8) for installing and positioning the insulator is arranged on the positioning table (1) at the rear side;

a plurality of strengthening rings (2) are uniformly arranged;

the reinforcing ring (2) is annularly arranged, and the reinforcing ring (2) is hooked in a U-shaped groove of the positioning table (1) which is oppositely arranged and used for tensioning and positioning the positioning table (1);

the lightning protection voltage ring set comprises an upper pressure ring (5) sleeved on the outer side of the positioning table (1) at the front side and a lower pressure ring (6) sleeved on the outer side of the positioning table (1) at the rear side;

the upper pressing ring (5) and the lower pressing ring (6) are rotatably disassembled on the outer side of the positioning table (1);

the outer edge of the upper pressure ring (5) and the outer edge of the lower pressure ring (6) are both inclined inwards, so that a lightning discharge channel is provided for lightning;

the outer edge of the upper pressing ring (5) and the outer edge of the lower pressing ring (6) are designed in a tooth shape.

2. The combined insulator according to claim 1, wherein: the positioning table is characterized in that a mounting hole (9) for fixing the mounting seat (7) and the fixing seat (8) is formed in the positioning table (1), a positioning hole (10) is further formed in the positioning table (1), a positioning pin shaft is installed in the positioning hole (10), and the mounting seat (7) and the fixing seat (8) are positioned on the positioning table (1) through the positioning pin shaft.

3. The combined insulator according to claim 1, wherein: the umbrella skirt (4) comprises a plurality of groups of umbrella skirt groups, and each umbrella skirt group consists of a large-diameter umbrella skirt and a small-diameter umbrella skirt.