CN215577948U

CN215577948U - Triple insulation carrier cable insulator

Info

Publication number: CN215577948U
Application number: CN202121573328.4U
Authority: CN
Inventors: 李东生; 李冉; 胡妮妮; 刘少波
Original assignee: Shandong Dongshengda Railway Electrification Technology Co ltd
Current assignee: Shandong Dongshengda Railway Electrification Technology Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-01-18
Anticipated expiration: 2031-07-12

Abstract

The utility model relates to a triple-insulation carrier cable insulator, which comprises an insulator core rod (1) and a single-lug connecting hardware fitting (3), and is characterized in that: two positioning sleeves (2) are arranged in two ends of an insulator core rod (1) at intervals, a first synthetic silicon rubber umbrella skirt combination (4) is fixed between the two positioning sleeves (2), and a second synthetic silicon rubber umbrella skirt combination (5) and a third synthetic silicon rubber umbrella skirt combination (6) are fixed between the two positioning sleeves (2) and single-lug connecting hardware fittings (3) at two ends respectively. The technical design of the utility model is mainly formed in the same insulator, so that the mounting positions of the string hanging devices on two sides of the insulator are insulated again, and after the design and the mounting, the upper ends of the string hanging devices are in an insulated state, thereby ensuring that the string hanging devices are not conductive and current-carrying, and avoiding the occurrence of electric corrosion and electric shock damage to the string hanging devices caused by the string hanging devices in a current-carrying state and shaking contact in real time.

Description

Triple insulation carrier cable insulator

Technical Field

The utility model relates to a catenary insulator for insulated connection of an electrified railway contact network, in particular to a triple insulated catenary insulator special for a sectional insulator.

Background

At present: in the power supply system of the overhead contact system of the electrified railway at home and abroad, insulators used by the catenary above all the sectionalizers do not have the advanced technology and the electric insulation advantages of the 'triple-insulated catenary insulator' special for the sectionalized insulator. In the current contact network power supply system, a dropper device of the sectionalizer is basically connected with a catenary wire at one end and a sectionalizing insulator at the other end, or is connected with a contact wire far away from the sectionalizer to hang and control the sectionalizer. The connecting structure leads the dropper device of the section insulator to be always in a diversion state, when the electric locomotive draws current through the contact network section, the dropper device is caused to be a diversion body, at the moment, the dropper device generates electric arc due to overlarge current and unrealistic vibration contact, and the steel wire rope in the dropper device is often subjected to electric corrosion or electric shock damage faults.

Disclosure of Invention

The utility model aims to design a device which can ensure that a dropper is not conductive and does not carry current and can avoid the occurrence of electric corrosion and electric shock damage to the dropper caused by non-real-time shaking contact of the dropper in a current carrying state. The technical scheme adopted for realizing the utility model is as follows: the utility model provides a triple insulation carrier cable insulator, is including insulator plug and monaural link fitting, its characterized in that: two positioning sleeves are arranged at intervals in two ends of the insulator core rod, a first synthetic silicon rubber umbrella skirt combination is fixed between the two positioning sleeves, and a second synthetic silicon rubber umbrella skirt combination and a third synthetic silicon rubber umbrella skirt combination are fixed between the two positioning sleeves and the single-lug connecting hardware fittings at the two ends respectively. The first synthetic silicon rubber umbrella skirt combination is formed by combining a plurality of first synthetic silicon rubber small umbrella skirts, the second synthetic silicon rubber umbrella skirt combination and the third synthetic silicon rubber umbrella skirt combination are both synthetic silicon rubber large and small umbrella skirts formed by arranging a plurality of second synthetic silicon rubber small umbrella skirts between two synthetic silicon rubber large umbrella skirts, and the number of the second synthetic silicon rubber small umbrella skirts is at least one. The first synthetic silicon rubber umbrella skirt combination can also adopt a synthetic silicon rubber large umbrella skirt formed by arranging a plurality of second synthetic silicon rubber small umbrella skirts between a plurality of two synthetic silicon rubber large umbrella skirts. The first synthetic silicon rubber umbrella skirt combination, the second synthetic silicon rubber umbrella skirt combination and the third synthetic silicon rubber umbrella skirt combination are formed by one-time injection molding of a silicon rubber mold.

The manufacturing process of the utility model comprises the following steps;

the method comprises the steps of sleeving a positioning sleeve on a certain position on the inner side of two ends of an insulator core rod, compressing and fixing the positioning sleeve, installing a single-lug connecting hardware fitting on the head parts of the two ends of the insulator core rod, compressing the single-lug connecting hardware fitting, and then putting the insulator core rod into a silicon rubber mold to perform one-step injection molding on a first synthetic silicon rubber umbrella skirt combination, a second synthetic silicon rubber umbrella skirt combination and a third synthetic silicon rubber umbrella skirt combination. The formed triple insulated carrier cable insulator is integrally completed. The electric insulation is reasonable and safe, the creepage distance and the insulation strength are improved, and the electric insulation is simple to manufacture and easy to install.

The utility model relates to a triple-insulation carrier cable insulator which is characterized in that two sides in the insulator are re-insulated by enlarged large and small umbrella skirts, and a positioning sleeve of a dropper device is used for clamping a dropper device to hang a sectional insulator. The integral structure of the triple-insulation carrier cable insulator is designed and formed in the same insulator. The middle long-distance insulator is used for insulating the dropper positioning sleeves on the two sides, and then the enlarged large umbrella skirts and the enlarged small umbrella skirts are used for insulating and connecting the hardware fitting to form an integral structure, so that the enlarged large umbrella skirts and the enlarged small umbrella skirts on the two sides are used for insulating dropper positioning, and the creepage distance of the whole insulator is multiplied. After the suspension cable is integrally connected with a carrier cable, the suspension cable is mainly connected with a suspension section insulator at a suspension string positioning position in an insulation area, and the technology really plays an innovative technology of improving the insulation strength of the insulator and ensuring that a suspension string device does not guide current.

The utility model can install the section insulator string hanging device on two sides of the insulator and protect the string hanging device from electric shock damage. The technical design of the utility model is mainly formed in the same insulator, so that the mounting positions of the string hanging devices on two sides of the insulator are insulated again, and after the design and the mounting, the upper ends of the string hanging devices are in an insulated state, thereby ensuring that the string hanging devices are not conductive and current-carrying, and avoiding the occurrence of electric corrosion and electric shock damage to the string hanging devices caused by the string hanging devices in a current-carrying state and shaking contact in real time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic diagram of an explosive structure according to the present invention.

In the figure, 1, an insulator core rod, 2, a positioning sleeve, 3, a single-lug connecting hardware fitting, 4, a first synthetic silicon rubber umbrella skirt combination, 5, a second synthetic silicon rubber umbrella skirt combination, 6, a third synthetic silicon rubber umbrella skirt combination, 7, a first synthetic silicon rubber small umbrella skirt, 8, a synthetic silicon rubber large umbrella skirt, 9 and a second synthetic silicon rubber small umbrella skirt.

Detailed Description

Referring to the attached drawings, the triple-insulation carrier cable insulator comprises an insulator mandrel 1 and a single-lug connecting hardware fitting 3, and is characterized in that: two positioning sleeves 2 are arranged at intervals in two ends of an insulator core rod 1, a first synthetic silicon rubber umbrella skirt combination 4 is fixed between the two positioning sleeves 2, and a second synthetic silicon rubber umbrella skirt combination 5 and a third synthetic silicon rubber umbrella skirt combination 6 are fixed between the two positioning sleeves 2 and single-lug connecting hardware fittings 3 at the two ends respectively. The first synthetic silicon rubber umbrella skirt combination 4 is formed by combining a plurality of first synthetic silicon rubber small umbrella skirts 7, the second synthetic silicon rubber umbrella skirt combination 5 and the third synthetic silicon rubber umbrella skirt combination 6 are both synthetic silicon rubber large and small umbrella skirts formed by arranging a plurality of second synthetic silicon rubber small umbrella skirts 9 between two synthetic silicon rubber large umbrella skirts 8, and the number of the second synthetic silicon rubber small umbrella skirts 9 is at least one. The first synthetic silicon rubber umbrella skirt combination 4 can also be formed by combining a plurality of synthetic silicon rubber large and small umbrella skirts. The first synthetic silicon rubber umbrella skirt combination 4, the second synthetic silicon rubber umbrella skirt combination 5 and the third synthetic silicon rubber umbrella skirt combination 6 are formed by one-time injection molding by using a silicon rubber mold.

The manufacturing process of the utility model comprises the following steps;

firstly, the positioning sleeve 2 is sleeved on a certain position of the inner side of two ends of the insulator core rod 1 and is compressed and fixed, then the single lug connecting hardware fitting 3 is installed on the head parts of the two ends of the insulator core rod 1 and is compressed, and then the insulator core rod is placed into a silicon rubber mold to be subjected to one-step injection molding to form a first synthetic silicon rubber umbrella skirt combination 4, a second synthetic silicon rubber umbrella skirt combination 5 and a third synthetic silicon rubber umbrella skirt combination 6. The formed triple insulated carrier cable insulator is integrally completed. The electric insulation is reasonable and safe, the creepage distance and the insulation strength are improved, and the electric insulation is simple to manufacture and easy to install.

Claims

1. The utility model provides a triple insulation carrier cable insulator, is including insulator plug (1) and monaural link fitting (3), its characterized in that: two positioning sleeves (2) are arranged in two ends of an insulator core rod (1) at intervals, a first synthetic silicon rubber umbrella skirt combination (4) is fixed between the two positioning sleeves (2), and a second synthetic silicon rubber umbrella skirt combination (5) and a third synthetic silicon rubber umbrella skirt combination (6) are fixed between the two positioning sleeves (2) and single-lug connecting hardware fittings (3) at two ends respectively.

2. The triple insulated catenary insulator of claim 1, wherein: the first synthetic silicon rubber umbrella skirt combination (4) is formed by combining a plurality of first synthetic silicon rubber small umbrella skirts (7), the second synthetic silicon rubber umbrella skirt combination (5) and the third synthetic silicon rubber umbrella skirt combination (6) are synthetic silicon rubber large and small umbrella skirts formed by arranging a plurality of second synthetic silicon rubber small umbrella skirts (9) between two synthetic silicon rubber large umbrella skirts (8), and the number of the second synthetic silicon rubber small umbrella skirts (9) is at least one.

3. The triple insulated catenary insulator of claim 1, wherein: the first synthetic silicon rubber umbrella skirt combination (4) is formed by combining a plurality of synthetic silicon rubber large and small umbrella skirts.

4. The triple insulated catenary insulator of claim 1, wherein: the first synthetic silicon rubber umbrella skirt combination (4), the second synthetic silicon rubber umbrella skirt combination (5) and the third synthetic silicon rubber umbrella skirt combination (6) are formed by one-time injection molding of a silicon rubber mold.