CN209904537U

CN209904537U - Anti-pollution flashover insulation protection rubber sleeve for pantograph base of motor train unit

Info

Publication number: CN209904537U
Application number: CN201920153413.1U
Authority: CN
Inventors: 武华军; 王玉刚; 李金宝
Original assignee: QINGDAO HAINENG ALPINE RAIL POWER EQUIPMENT ENGINEERING TECHNOLOGY Co Ltd; Qingdao Hai Neng Electric Applicance Co Ltd
Current assignee: QINGDAO HAINENG ALPINE RAIL POWER EQUIPMENT ENGINEERING TECHNOLOGY Co Ltd; Qingdao Hai Neng Electric Applicance Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2020-01-07
Anticipated expiration: 2029-01-29

Abstract

The utility model provides an insulating protective gum cover of antifouling sudden strain of a muscle of EMUs pantograph base, include: the pantograph type pantograph comprises a contact net, a pantograph, a strut, a front rubber sleeve, a base, liquid silica gel and a rear rubber sleeve. The pantograph is installed on the roof and connected with a contact network, 27.5KV power grid high voltage is introduced into the motor train unit through the pantograph and is connected to a high-voltage machine box through a fault isolating switch, high voltage electricity coming out of the high-voltage machine box is directly connected to a primary winding of a traction transformer, a high-voltage interlocking loop is arranged, the bottom of the high-voltage interlocking loop is connected with 1 front rubber sleeve and 2 rear rubber sleeves on a base through a support column to form a stable triangular support frame, the front rubber sleeves and the rear rubber sleeves are tightly attached to the pantograph base to increase the insulation characteristic between high-voltage equipment and the roof, constant and lasting radial pressure is provided for the pantograph base, the local discharge amount is small, the initial voltage is high, the waterproof sealing performance is good, and the insulation impact level is higher than that of the existing standard.

Description

Anti-pollution flashover insulation protection rubber sleeve for pantograph base of motor train unit

Technical Field

The utility model relates to a track traffic and EMUs vehicle electric power technical field, concretely relates to be used for insulating protective gum cover of antifouling sudden strain of a muscle of EMUs pantograph base.

Background

At present, in the field of rail transit, a vehicle pantograph insulator is a composite structure insulator composed of organic synthetic materials and mainly composed of a core rod, hardware fittings, an umbrella skirt sheath and an adhesive layer. Because the shed of the silicon rubber insulator is made of flexible materials, when the motor train unit runs at a high speed, the shed on the leeward side of the insulator generates higher negative pressure under the action of air flow, when the motor train unit meets trains and the speed changes, the aerodynamic force around the insulator acts for a long time, alternating galloping and vibration deformation are easy to occur, the joint of the shed and the sheath is gradually cracked, the creepage distance of the insulator is reduced, discharge flashover is easy to occur under the weather conditions of moist conditions such as continuous rain, fog and the like, the electrical insulation characteristic of the train is reduced, and therefore the ground fault is caused, faults such as train running power loss, component damage and the like can occur in serious conditions, and great influence is brought to the normal running of the train.

Disclosure of Invention

For solving prior art's is not enough, the utility model provides an antifouling sudden strain of a muscle insulation protection gum cover of EMUs pantograph base makes it closely attached pantograph base, increases the insulating characteristic between high-tension apparatus and the roof, provides invariable lasting radial pressure to the pantograph base, and the partial discharge volume is little, and initial voltage is high, and waterproof leakproofness is good, and insulating impact level is higher than the level of current standard.

The utility model provides an antifouling sudden strain of a muscle insulating protective gum cover of EMUs pantograph base, includes: the pantograph type pantograph comprises a contact net, a pantograph, a strut, a front rubber sleeve, a base, liquid silica gel and a rear rubber sleeve. The high-voltage interlocking device comprises a pantograph, a contact net, a high-voltage machine box, a traction transformer, a high-voltage interlocking loop, a high-voltage interlocking switch, a high-voltage power supply, a high-voltage interlocking loop and a supporting column, wherein the pantograph is arranged on the roof of a vehicle and connected with the contact net, the high voltage of a 27.5KV power grid is introduced into a motor train unit through the pantograph and is connected to the high-voltage machine box through the fault isolating switch, the high voltage power supply coming out of the high-voltage machine box is directly.

The anti-pollution flashover insulation protective rubber sleeve for the motor train unit pantograph base is made of high-quality silicon rubber and has good hydrophobic performance, water drops roll off on the protective rubber sleeve at any time, a conductive water film is not formed, and the self-healing performance of hydrophobicity is realized. In addition, the protective rubber sleeve has extremely strong insulativity, electric trace resistance, corrosion resistance and ultraviolet resistance, so that the pantograph base is ensured to be used for a long time, and the performance is stable, thereby being applied to the rail transit industry.

Drawings

Fig. 1 is a schematic view of the patent structure of the present invention.

FIG. 2 the utility model discloses a EMUs pantograph base is antifouling sudden strain of a muscle to insulating protection gum cover installation picture.

FIG. 3 the utility model discloses a EMUs pantograph base antifouling sudden strain of a muscle insulating protective gum cover corresponds three-dimensional map.

In the figure: 1. the contact net, 2 pantographs, 3 pillars, 4 front rubber sleeves, 5 bases, 6 liquid silica gel, 7 back rubber sleeves.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail.

The utility model provides an antifouling sudden strain of a muscle insulating protective gum cover of EMUs pantograph base, includes: the pantograph type overhead contact system comprises a contact net 1, a pantograph 2, a strut 3, a front rubber sleeve 4, a base 5, liquid silica gel 6 and a rear rubber sleeve 7.

The high-voltage pantograph 2 arranged on the roof is connected with a contact network 1, the high voltage of a 27.5KV power grid is firstly introduced into the motor train unit through the pantograph 2, then is connected to a high-voltage machine box through a fault isolating switch, and is connected with a protective grounding switch EGS through a bypass. The high-voltage machine box is internally provided with a lightning arrester, a vacuum circuit breaker VCB and a grounding terminal. The high-voltage electricity from the high-voltage machine box is directly connected to the primary winding of the traction transformer, a high-voltage interlocking loop is arranged, and the bottom of the high-voltage interlocking loop is connected with a front rubber sleeve 4 and a rear rubber sleeve 7 on a base 5 through a support 3 to form a stable triangular support frame.

When the device is installed, firstly, impurities such as oil stain, dust and the like on the metal surface of the base 5 of the pantograph 2 are removed, and a special treating agent is brushed on the surface to be adhered; wiping the surface to be adhered with rubber with dry cloth; under the normal-temperature dry weather (room temperature and 55% relative humidity), unscrewing the liquid silica gel 6 rubber tube cap, installing a plastic rubber nozzle, and opening the liquid silica gel 6 rubber nozzle by using a blade; and (3) coating the liquid silica gel 6 glue solution to the front position glue sleeve 4 to be adhered, then adhering the front position glue sleeve to the base 5, knocking once by using a rubber hammer, and standing at room temperature for more than 24 hours.

The anti-pollution flashover insulation protective rubber sleeve for the pantograph 2 base of the motor train unit is made of high-quality silicon rubber, has good hydrophobic performance, and water drops roll off on the protective rubber sleeve at any time, so that a conductive water film is not formed, and the self-healing performance of hydrophobicity is realized. In addition, the protective rubber sleeve has extremely strong insulativity, electric trace resistance, corrosion resistance and ultraviolet resistance, so that the pantograph base is ensured to be used for a long time, and the performance is stable, thereby being applied to the rail transit industry.

The utility model discloses a technique, its overall structure is simple reasonable, and insulating nature, anti electric mark, corrosion resistance and ultraviolet resistance are linear principle reliably, stable performance, operation safety, and the track traffic trade uses extensively, and the safe operation effect is obvious, uses environment friendly.

Claims

1. The utility model provides an antifouling sudden strain of a muscle insulating protective gum cover of EMUs pantograph base which characterized in that: the method comprises the following steps: the device comprises a contact net, a pantograph, a strut, a front rubber sleeve, a base, liquid silica gel and a rear rubber sleeve; the high-voltage interlocking device comprises a pantograph, a contact net, a high-voltage machine box, a traction transformer, a high-voltage interlocking loop, a high-voltage interlocking switch, a base and liquid silica gel, wherein the pantograph is arranged on the roof and connected with the contact net, high voltage of a 27.5KV power grid is introduced into a motor train unit through the pantograph and is connected to the high-voltage machine box through the fault isolating switch, high voltage electricity coming out of the high-voltage machine box is directly connected to a primary winding of the traction transformer, the high-voltage interlocking loop is arranged, the bottom of the high-voltage interlocking loop is connected with 1 front rubber sleeve and 2 rear rubber sleeves.