CN215988578U - SF6 circuit breaker assembly for 40.5kV - Google Patents

Abstract

The utility model relates to the field of electrical equipment, in particular to a 40.5kV SF6 circuit breaker assembly which comprises two vertically arranged mounting base plates, wherein a plurality of arc extinguish chambers are fixed between the mounting base plates, a contact part capable of moving up and down is arranged at the bottom of each arc extinguish chamber, a moving part is fixedly connected to the outer side of each contact part, a voltage equalizing ring is designed on the periphery of a support, the moving part drives the contact parts to move up and down, a support is fixed to the outer side of one mounting base plate, and the support is movably connected with the other end of the moving part. The utility model adopts an integrated design scheme, so that the utility model obtains better insulating property and has more excellent performance.

Description

SF6 circuit breaker assembly for 40.5kV

Technical Field

The utility model relates to the field of electrical equipment, in particular to an SF6 circuit breaker assembly for 40.5 kV.

Background

The SF6 circuit breaker for 40.5kV is exclusively used in SF6 gas insulation looped netowrk switchgear, need possess higher insulating properties, need possess higher mechanical stability performance simultaneously, the even electric field of circuit breaker three-phase promptly increases the equalizer ring, makes alternate insulating properties to ground accord with technical requirement, guarantees longitudinal arrangement three-phase explosion chamber when increasing the part simultaneously and possesses excellent contemporary performance and higher mechanical stability performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of designing an SF6 circuit breaker assembly for 40.5kV, which has excellent insulating property and high mechanical stability.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

SF6 circuit breaker assembly for 40.5kV, including vertical two mounting substrate of laying, be fixed with three explosion chambers between the mounting substrate, the explosion chamber bottom is provided with the contact member that can reciprocate, the contact member outside fixedly connected with moving part, the moving part drive the contact member reciprocates, is fixed with the support in one of them side mounting substrate outside, the support with the other end swing joint of moving part.

Furthermore, a movable hole is formed in the support, and a circular rotatable movable sleeve is sleeved in the movable hole.

Further, the movable member includes: the spline shaft, the spline sleeve, the crank arm, the connecting arm and the insulating connecting rod are arranged on the connecting rod;

one ends of the crank arm and the connecting arm are hinged on the contact part, and the other ends of the crank arm and the connecting arm are hinged on the end part of the insulating connecting rod;

the spline housing is sleeved outside the spline shaft and driven by the spline shaft, the spline shaft is matched with the movable sleeve, and the outer edge of the spline housing is also provided with a support lug which is hinged with the other end of the insulating connecting rod through a pin shaft.

Further, the quantity of the supports is the same as that of the arc extinguishing chambers, and the spline shaft comprises internal square steel and shaft sleeves sleeved outside the square steel.

In summary, compared with the conventional technical means, the utility model has the following beneficial effects:

1. the utility model adopts an integrated design scheme, so that the utility model obtains excellent insulating property and stable mechanical property.

2. The utility model uses the square steel to reinforce the knot of the spline shaft, thereby effectively improving the anti-twisting capability of the spline shaft.

Drawings

The foregoing and other objects, features, and advantages of the utility model will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

fig. 2 is a schematic front structural view of the present invention.

Wherein:

1. the mounting structure comprises a mounting base plate, 11 equalizing rings, 2 arc extinguishing chambers, 3 contact parts, 4 movable pieces, 41 spline shafts, 411 square steel, 412 shaft sleeves, 42 spline sleeves, 43 crank arms, 44 support lugs, 45 insulating connecting rods, 46 connecting arms, 5 brackets, 51 movable holes and 52 movable sleeves.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The utility model is further illustrated with reference to the following description of the drawings:

SF6 circuit breaker assembly for 40.5kV, including two vertical mounting substrate 1 of laying, be fixed with three explosion chamber 2 between the mounting substrate 1, explosion chamber 2 bottom is provided with the contact member 3 that can reciprocate, contact member 3 outside fixedly connected with moving part 4, the drive of moving part 4 contact member 3 reciprocates, is fixed with support 5 in one of them side mounting substrate 1 outside, support 5 with the other end swing joint of moving part 4. The bracket 5 is provided with a movable hole 51, and a circular rotatable movable sleeve 52 is sleeved in the movable hole 51. The periphery of the support 5 is provided with an equalizing ring 11. The movable member 4 includes: spline shaft 41, spline housing 42, crank arm 43, connecting arm 46 and insulating connecting rod 45; one ends of the crank arm 43 and the connecting arm 46 are hinged on the contact part 3, and the other ends are hinged on the end part of the insulating connecting rod 45; the spline housing 42 is sleeved outside the spline shaft 41 and driven by the spline shaft 41, the spline shaft 41 is matched with the movable sleeve 52, a support lug 44 is further arranged on the outer edge of the spline housing 42, and the support lug is hinged to the other end of the insulating connecting rod 45 through a pin shaft. The number of the brackets 5 is the same as that of the arc extinguish chambers 2, and the spline shaft 41 comprises an inner square steel 411 and a shaft sleeve 412 sleeved outside the square steel 411.

The working principle of the utility model is briefly described as follows:

in the utility model, two mounting substrates 1 are vertically arranged in an SF6 gas chamber, three arc extinguishing chambers 2 are arranged between the mounting substrates 1, and in the utility model, the arc extinguishing chambers 2 are fixed by adopting a support.

A contact part 3 is movably connected below the arc extinguishing chamber 2, and the contact part 3 comprises a contact body and a supporting plate for supporting as shown in fig. 1. The two sides of the supporting plate are turned upwards to form side walls. Wherein the end of the crank arm 43 is hinged to the movable part at the bottom of this support plate and the end of the connecting arm 46 is hinged to the side wall of the support plate. The two sides of each head outlet body are hinged with a crank arm 43 and a connecting arm 46.

As shown in fig. 1, the crank arm 43 is circular and the connecting arm 46 is relatively short, both of which are hinged at their tops to the insulating link 45. The other end of the insulating connecting rod 45 is hinged to the support lug, and the support lug is fixed to the periphery of the spline housing 42, so that the spline shaft 41 can drive the insulating connecting rod 45, the connecting arm 46 and the connecting lever 43 to move when rotating, and finally the connecting lever 43 drives a movable part under the supporting plate, namely the contact body to move up and down to realize opening or closing.

Because a plurality of moving parts 4 are connected on same integral key shaft 41 simultaneously, so can guarantee that it has good synchronism, guarantee that the contact can have better uniformity when separating brake and closing a floodgate.

In addition, in the utility model, the square steel 411 is additionally arranged in the middle of the spline shaft 41, and the square steel 411 can effectively improve the anti-twisting capability and strength of the spline shaft 41 and reduce the deformation of the spline shaft 41 caused by long-time opening and closing.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (4)

1.40.5kV is with SF6 circuit breaker assembly, its characterized in that, including two vertical mounting substrate of laying, three fixed explosion chambers between the mounting substrate, the explosion chamber bottom is provided with the contact member that can reciprocate, contact member outside fixedly connected with moving part, the moving part drive contact member reciprocates, is fixed with the support in one of them side mounting substrate outside, the peripheral design of support has the equalizer ring, the support with the other end swing joint of moving part.

2. The SF6 circuit breaker assembly for 40.5kV of claim 1, wherein the cradle has a movable hole, and a circular rotatable moving sleeve is sleeved in the movable hole.

3. The SF6 circuit breaker assembly for 40.5kV of claim 2, wherein the moving member comprises: the spline shaft, the spline sleeve, the crank arm, the connecting arm and the insulating connecting rod are arranged on the connecting rod;

one ends of the crank arm and the connecting arm are hinged on the contact part, and the other ends of the crank arm and the connecting arm are hinged on the end part of the insulating connecting rod;

the spline housing is sleeved outside the spline shaft and driven by the spline shaft, the spline shaft is matched with the movable sleeve, and the outer edge of the spline housing is also provided with a support lug which is hinged with the other end of the insulating connecting rod through a pin shaft.

4. The SF6 circuit breaker assembly for 40.5kV of claim 3, wherein the number of the brackets is the same as the number of the arc extinguishing chambers, and the spline shaft comprises an internal square steel and a shaft sleeve sleeved outside the square steel.

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