CN117174525B - Bracket assembly for tank circuit breaker and method of transporting and assembling the assembly - Google Patents

Bracket assembly for tank circuit breaker and method of transporting and assembling the assembly Download PDF

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Publication number
CN117174525B
CN117174525B CN202311448128.XA CN202311448128A CN117174525B CN 117174525 B CN117174525 B CN 117174525B CN 202311448128 A CN202311448128 A CN 202311448128A CN 117174525 B CN117174525 B CN 117174525B
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legs
main
beams
additional
assembly
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CN117174525A (en
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王迎春
李宏超
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Siemens Energy High Voltage Switch Hangzhou Co ltd
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Siemens Energy High Voltage Switch Hangzhou Co ltd
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Abstract

The present invention provides a cradle assembly for a tank circuit breaker and a method of transporting and assembling the assembly, the cradle assembly having an operating configuration in which the cradle assembly is configured for supporting the tank circuit breaker and a transport configuration in which the cradle assembly is configured for transport by a transport vehicle, the cradle assembly comprising: a plurality of primary legs including an upper end and a lower end, the upper end configured to support at least a portion of the tank circuit breaker in both the operating configuration and the transport configuration; a first cross beam detachably connected between two main legs of the plurality of main legs; and a plurality of additional legs in one-to-one correspondence with the plurality of main legs, each additional leg including an upper end and a lower end, the upper ends of the additional legs being removably connected to the lower ends of the main legs in the operational configuration, and the upper ends of the additional legs being removed from the lower ends of the main legs in the transport configuration. The bracket component can be flexibly disassembled and assembled, so that the assembly efficiency is improved, and the cost is saved.

Description

Bracket assembly for tank circuit breaker and method of transporting and assembling the assembly
Technical Field
The present invention relates to the field of packaging tank circuit breakers, and in particular to a cradle assembly for a tank circuit breaker and a method of transporting and assembling the assembly.
Background
Currently, a bracket assembly of an existing 550kV high-voltage tank circuit breaker (which may be simply referred to as DT550kV CB) generally comprises a body bracket and a transportation bracket, and the bracket assembly has a plurality of problems, for example, the configuration of the body bracket is not flexible enough; the mechanical reliability of the body support is not high; the body bracket occupies large space; the body support and the transportation support are two sets of designs, so that the problem of high cost is caused.
In particular, most of DT550kV CB body brackets currently used are groveling-type integral brackets, and in this description, the groveling-type integral brackets refer to brackets with a certain inclination angle instead of being vertical to the ground, and the insulation distance required by the groveling-type integral brackets is required to have a certain height, and the transportation is limited due to the too high height, so that another transportation bracket with a lower height is required to be designed. When in field installation, the transportation support is required to be dismantled firstly, scrapped and then the body support is assembled again, so that the body support and the transportation support cannot be used in a compatible manner, and the transportation cost and the assembly cost are high.
In the high-voltage power transmission and distribution project, for matching with the existing power station design, different product heights are often required, and the body support designed into a whole is not flexible enough to be configured when meeting different product height requirements, and the height of the whole support needs to be adjusted. Because the integral support is in a groveling open structure, the change of the height of the support can lead to the change of the groveling angle, and the mechanical property of the integral support needs to be further evaluated.
The currently used DT550kV CB body support is designed by angle steel supporting legs and angle steel supporting, and the reliability of the mechanical properties of the DT550kV CB is difficult to guarantee under the working condition of high load.
The body support design of formula of lying prone has great area when the power station field installation.
Disclosure of Invention
In view of this, the present invention is directed to providing such a cradle assembly for a tank circuit breaker: the support assembly can be suitable for two scenes of work and transportation, and the components of the support assembly can be flexibly disassembled and assembled, so that the assembly efficiency is improved, and meanwhile, the cost is saved. The present invention is also directed to methods of transporting and assembling the assembly.
According to an aspect of the present invention, there is provided a cradle assembly for a tank circuit breaker, in particular, the cradle assembly having an operating configuration in which the cradle assembly is configured for supporting a tank circuit breaker and a transport configuration in which the cradle assembly is configured to be adapted for transport by a transport means, wherein the cradle assembly comprises: a plurality of primary legs, each primary leg including an upper end and a lower end, the upper ends configured to support at least a portion of the tank circuit breaker in both the operating configuration and the transport configuration; at least one first beam, each of said first beams being removably connected between two of said main legs; and a plurality of additional legs in one-to-one correspondence with the plurality of primary legs, each of the additional legs including an upper end and a lower end, the upper end of each of the additional legs being respectively removably connected to the lower end of the corresponding primary leg in the operating configuration, and the upper end of each of the additional legs being respectively removed from the lower end of the corresponding primary leg in the transport configuration.
In an exemplary embodiment, the plurality of main legs comprises four main legs, the at least one first beam comprises two first beams, and the plurality of additional legs comprises four additional legs, each of the four main legs and each of the four additional legs being arranged perpendicular to the ground reference plane in the operating configuration.
In an exemplary embodiment, four of the main legs have the same length, four of the additional legs have the same length, two of the first beams have the same length, and both of the first beams are horizontally disposed parallel to each other in both the working configuration and the transport configuration; and in said operative configuration, four of said main legs and four of said additional legs are positioned along four corners of a rectangle in a top plan view and two of said first beams are positioned in two vertical planes in which two long sides of said rectangle lie.
In an exemplary embodiment, the bracket assembly further comprises a plurality of first reinforcement beams, one end of each of the first reinforcement beams being detachably connected to one of the additional legs, the other end of each of the first reinforcement beams being detachably connected to one of the first cross members, each of the first reinforcement beams being disposed obliquely with respect to the additional leg, and each of the first reinforcement beams being located in a vertical plane in which the long side of the rectangle lies.
In an exemplary embodiment, the bracket assembly further comprises a plurality of second reinforcement beams, one end of each of which is detachably connected to one of the main legs, the other end of each of which is detachably connected to one of the additional legs, each of which is arranged obliquely with respect to the main leg, and each of which is located in a vertical plane in which a short side of the rectangle lies.
In an exemplary embodiment, the bracket assembly further comprises two second beams, one end of each of which is detachably connected to one of the additional legs in the operating configuration, and the other end of each of which is detachably connected to one of the adjacent additional legs, each of which is horizontally arranged and lies in a vertical plane in which the short sides of the rectangle lie.
In an exemplary embodiment, in the operating configuration, each of the first cross members is connected at both ends to an upper position of the main leg and each of the second cross members is connected at both ends to a lower position of the additional leg.
In an exemplary embodiment, the bracket assembly further comprises four seats arranged to be mounted to the lower ends of the four additional legs, respectively, in the operating configuration; and the cradle assembly further comprises four ski-shaped feet, the ski-shaped feet having opposite ends that are upwardly turned relative to the central portion, the four ski-shaped feet being arranged to be mounted to the lower ends of the four main legs, respectively, in the transport configuration.
In an exemplary embodiment, each of the four main legs includes a body including a hot rolled H-section steel including first and second flanges parallel to each other and a web connected between the first and second flanges, and a reinforcing plate connected between the first and second flanges and perpendicular to the web; and each of the two first beams comprises hot rolled U-shaped steel.
In an exemplary embodiment, a first mounting portion is provided on each of the first wing plate and the second wing plate, and the first mounting portion is used for detachably mounting the first beam; each of the two first cross beams is provided with a second mounting part and a third mounting part, wherein the second mounting part is used for detachably mounting one end of the first reinforcing beam, and the third mounting part is used for detachably mounting one end of the second reinforcing beam; and the upper ends of the four main supporting legs are provided with fourth mounting parts for mounting the other ends of the first reinforcing beams or the other ends of the second reinforcing beams.
According to another aspect of the present invention, there is also provided a transportation and assembly method for a cradle assembly of a tank circuit breaker, the method comprising a first assembly step and a second transportation step:
in the first assembly step, the cradle assembly is disposed in an operative configuration in which the cradle assembly is configured for supporting a tank circuit breaker, the first assembly step comprising the steps of:
providing a plurality of primary legs, each primary leg including an upper end and a lower end, the upper ends being configured to support at least a portion of the tank circuit breaker;
providing at least one first beam, removably connecting each of said first beams between two of said primary legs; and
providing a plurality of additional legs in one-to-one correspondence with a plurality of said primary legs, each of said additional legs including an upper end and a lower end, the upper end of each of said additional legs being detachably connected to the lower end of a corresponding one of said primary legs, respectively;
in the second transporting step, the rack assembly is arranged in a transporting configuration in which the rack assembly is configured to be adapted to be transported by a transport means, the second transporting step comprising the steps of:
Removing the upper end of each of the additional legs from the lower end of the corresponding main leg, respectively;
transporting the cradle assembly with a vehicle, at least a portion of the tank circuit breaker being supported at the upper end of each of the primary legs during transport.
In an exemplary embodiment, the plurality of main legs includes four main legs, at least one of the first beams includes two first beams, and the plurality of additional legs includes four additional legs, four of the main legs have the same length, four of the additional legs have the same length, two of the first beams have the same length, each of the four main legs and each of the four additional legs are arranged perpendicular to a ground reference plane, the two first beams are arranged parallel to each other in a horizontal direction, the four main legs and the four additional legs are positioned in four corners of one rectangle in a top view plane, and the two first beams are positioned in two vertical planes in which the two long sides of the rectangle are located; and in the second transporting step, each of the first beams is removed and reinstalled at another location of the respective two primary legs below the installation location of each of the first beams in the operating configuration.
In an exemplary embodiment, the first assembling step further includes the steps of: providing a plurality of first reinforcement beams, positioning each of the first reinforcement beams in a vertical plane in which a long side of the rectangle is located, detachably connecting one end of each of the first reinforcement beams to a lower end of one of the additional legs, detachably connecting the other end of each of the first reinforcement beams to one of the first cross beams, and arranging each of the first reinforcement beams to be inclined with respect to the additional leg; and in the second transporting step, each of the first reinforcement beams is detached, and then one end of each of two of the plurality of first reinforcement beams is attached to the upper end of the main leg, and the other end of each is attached to the first cross member.
In an exemplary embodiment, the first assembling step further includes the steps of: providing a plurality of second reinforcement beams, positioning each of the second reinforcement beams in a vertical plane in which a short side of the rectangle is located, detachably connecting one end of each of the second reinforcement beams to an upper end of one of the main legs, and detachably connecting the other end of each of the second reinforcement beams to a lower end of an adjacent one of the additional legs, such that each of the second reinforcement beams is disposed obliquely with respect to the main leg; and in the second transporting step, each of the second reinforcing beams is detached, and then one end of each of two of the plurality of second reinforcing beams is mounted to the main leg, and the other end of each is mounted to the first cross member.
In an exemplary embodiment, the first assembling step further includes the steps of: providing two second cross beams, wherein one end of each second cross beam is detachably connected to one additional leg, the other end of each second cross beam is detachably connected to one adjacent additional leg, and each second cross beam is horizontally arranged and positioned in a vertical plane where the short side of the rectangle is positioned; and in the second transporting step, each of the second cross members is removed, one end of each of the second cross members is then detachably connected to one of the main legs, the other end of each of the second cross members is detachably connected to an adjacent one of the main legs, and each of the second cross members is arranged horizontally and positioned in a vertical plane in which the short sides of the rectangle lie.
In an exemplary embodiment, the first assembling step further includes the steps of: providing four bases, and respectively mounting the four bases on the lower ends of the four additional supporting legs; the second transporting step further comprises the steps of: four ski-shaped feet are provided, each of which is mounted to the lower ends of four of the main legs, with both ends of the ski-shaped feet being raised upwardly relative to the central portion.
In an exemplary embodiment, each of the four main legs includes a body including a hot rolled H-section steel including first and second flanges parallel to each other and a web connected between the first and second flanges, and a reinforcing plate connected between the first and second flanges and perpendicular to the web; wherein in the first assembling step, both ends of each of the first cross members are respectively mounted to the first wing plates of the corresponding two main legs so that each of the first cross members is located outside the corresponding two main legs; wherein in the second transporting step, each of the first beams is detached and turned 180 ° and then both ends of each of the first beams are mounted to the second wing plates of the corresponding two main legs so that each of the first beams is located inside the corresponding two main legs.
By means of the bracket assembly for a tank circuit breaker and the method of transporting and assembling the assembly according to the invention, at least the following technical advantages are achieved.
The first bracket component and the second bracket component have a working configuration and a transportation configuration, are flexibly assembled, and realize seamless connection between the working configuration and the transportation configuration during field operation, so that the cost is greatly saved, and the assembly efficiency is improved.
The bracket component is provided with four additional supporting legs, and the heights of the additional supporting legs can be flexibly changed, so that the requirements of different power stations on the heights of the circuit breakers are met; and the design of the transportation configuration is not influenced, so that the transportation height requirement can be ensured at the same time.
Thirdly, the main support leg and the additional support leg of the support assembly are vertically arranged in the working configuration, namely are vertically arranged with the ground reference surface, so that the problem of changing the support installation angle caused by increasing the height of the support is solved, and the mechanical property is more reliable.
Fourth, the main support leg and the additional support leg of the bracket component can be made of hot rolled H-shaped steel, the structure of the main support leg and the additional support leg has higher high load resistance, the bracket component has more reliable mechanical properties, and the stress and strain performance of the split-type bracket component is obviously superior to that of the bracket component integrally designed in the prior art under the condition of bearing the same load through ANSYS analysis of finite element analysis software. Under the condition of loading the same gravity load and wind load, the mechanical analysis is carried out on the bracket component and the bracket component integrally designed in the prior art, and the obtained result is that: the maximum amount of deflection of the stent assembly of the present invention is only 6.7717mm, whereas the maximum amount of deflection of the stent assembly of the prior art integrated design is 10.023mm.
Fifth, the main leg and the additional leg of the bracket assembly of the invention are vertically installed in the working configuration, rather than being designed in a groveling open type, and compared with the existing integral groveling open type meter, the bracket assembly has small occupied area in actual installation.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:
fig. 1 is a cradle assembly for a tank circuit breaker according to an exemplary embodiment of the present invention, the cradle assembly being in an operating configuration, wherein the tank circuit breaker is not shown.
Fig. 2 is a cradle assembly for a tank circuit breaker according to an exemplary embodiment of the present invention, the cradle assembly being in a transport configuration, wherein the tank circuit breaker is not shown.
Fig. 3 is a cradle assembly for a tank circuit breaker according to an exemplary embodiment of the present invention, the cradle assembly being shown in an operating configuration in which the tank circuit breaker is shown.
Fig. 4 is a cradle assembly for a tank circuit breaker according to an exemplary embodiment of the present invention, the cradle assembly being in a transport configuration, wherein the tank circuit breaker is shown.
Fig. 5 is a view of a portion of the components of a cradle assembly for a tank circuit breaker, including mainly one main leg and one additional leg, according to an exemplary embodiment of the present invention.
Detailed Description
The present invention will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Nouns and pronouns for humans in this patent application are not limited to a particular gender.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise.
Referring first to fig. 1 and 2, a cradle assembly for a tank circuit breaker according to one exemplary embodiment of the present invention is shown, the cradle assembly having an operating configuration and a transport configuration. The tank circuit breaker is especially a 550kV high-voltage tank circuit breaker. The bracket component of the invention is a split bracket component.
In fig. 1, the cradle assembly is in an operating configuration, in which the tank circuit breaker is not shown. In fig. 2, the cradle assembly is in a transport configuration, in which the tank circuit breaker is not shown.
As shown in fig. 3, in the operating configuration, the cradle assembly is configured to support a tank circuit breaker 20. As shown in fig. 4, in the transport configuration, the cradle assembly is configured to be adapted for transport by a vehicle upon which the tank circuit breaker 20 may be mounted.
Referring to fig. 1, the cradle assembly includes a plurality of primary legs 1, for example four primary legs 1, each primary leg 1 including an upper end and a lower end, the upper end being configured to support at least a portion of a tank circuit breaker 20 in both an operating configuration and a transport configuration. In particular, with reference to fig. 3, in the operating configuration, the upper end of each main leg 1 supports the whole of the tank circuit breaker 20, including the tank and the bushing, not shown in fig. 3; referring to fig. 4, in the transport configuration, the upper end of each main leg 1 is typically a tank supporting a tank circuit breaker 20. It should be understood that the tank circuit breaker 20 is shown only schematically in fig. 3 and 4 for ease of understanding and that specific details are not shown.
Referring to fig. 1, the bracket assembly further comprises at least one first cross member 2, e.g. two first cross members 2. The first cross member 2 is detachably connected between two main legs 1 of the plurality of main legs 1. The stand assembly further comprises a plurality of additional legs 3, for example four additional legs 3, the plurality of additional legs 3 being in a one-to-one correspondence with the plurality of main legs 1, each additional leg 3 comprising an upper end and a lower end, in the operating configuration the upper end of each additional leg 3 being respectively removably connected to the lower end of the corresponding main leg 1, and in the transport configuration the upper end of each additional leg 3 being respectively removed from the lower end of the corresponding main leg 1.
Referring to fig. 1 and 3, in the working configuration, each of the four main legs 1 and each of the four additional legs 3 are arranged perpendicularly to the ground reference plane.
Referring to fig. 1, the four main legs 1 have the same length, the four additional legs 3 have the same length, the two first cross beams 2 have the same length, and the two first cross beams 2 are horizontally arranged parallel to each other in both the working configuration and the transport configuration; and in the operating configuration four main legs 1 and four additional legs 3 are positioned in a top plane along the four corners of a rectangle and two first cross beams 2 are positioned in two vertical planes in which the two long sides of the rectangle lie. With reference to fig. 2, it is evident that in the transport configuration, the four main legs 1 are positioned in a top plane along the four corners of the same rectangle, and the two first cross beams 2 lie in two vertical planes in which the two long sides of the rectangle lie.
Referring to fig. 1, the bracket assembly may further comprise a plurality of first reinforcement beams 4, for example four first reinforcement beams 4, one end of each first reinforcement beam 4 being detachably connected to one of the additional legs 3, in particular to the lower end of one of the additional legs 3, the other end of each first reinforcement beam 4 being detachably connected to one of the first cross beams 2, in particular, the other ends of two of the four first reinforcement beams 4 being detachably connected to a substantially middle position of the first cross beam 2 in the length direction, the other ends of the other two of the four first reinforcement beams 4 being detachably connected to a substantially quarter position of the first cross beam 2 in the length direction. Each first reinforcement beam 4 is arranged obliquely with respect to the additional leg 3 and each first reinforcement beam 4 is located in a vertical plane in which the long side of the rectangle lies. As can be seen from fig. 1, the first reinforcement beam 4 is detachably connected to the first cross beam 2 by means of mounting fittings 10 and bolts.
Referring to fig. 1, the bracket assembly may further comprise a plurality of second reinforcement beams 5, for example four second reinforcement beams 5, one end of each second reinforcement beam 5 being detachably connected to one main leg 1, in particular to the upper end of one main leg 1, and the other end of each second reinforcement beam 5 being detachably connected to one additional leg 3, in particular to the lower end position of one additional leg 3, in the operating configuration. Each second reinforcement beam 5 is arranged obliquely with respect to the main leg 1 and each second reinforcement beam 5 is located in a vertical plane where the short side of the rectangle lies.
Referring to fig. 1, the bracket assembly may further comprise two second cross members 6, each second cross member 6 being in an operative configuration with one end of each second cross member 6 being detachably connected to one of the additional legs 3 and the other end of each second cross member 6 being detachably connected to the other additional leg 3, each second cross member 6 being arranged horizontally and lying in a vertical plane in which the short sides of the rectangle lie. Referring to fig. 2, in the second transportation step, each second cross member 6 is detached, and then one end of each second cross member 6 is detachably connected to one main leg 1, the other end of each second cross member 6 is detachably connected to one adjacent main leg 1, and each second cross member 6 is horizontally arranged and positioned in a vertical plane where the short sides of the rectangle are located.
Referring to fig. 1, in the working configuration, each first cross member 2 is connected at both ends to the upper position of the main leg 1 and each second cross member 6 is connected at both ends to the lower position of the additional leg 3.
Referring to fig. 1, the bracket assembly further comprises four bases 7, the four bases 7 being arranged to be mounted to the lower ends of the four additional legs 3, respectively, in the operating configuration. Referring to fig. 2, the cradle assembly further comprises four ski-shaped feet 8, the ski-shaped feet 8 being upwardly turned at both ends relative to the middle, the four ski-shaped feet 8 being arranged to be mounted to the lower ends of the four main legs 1, respectively, in the transport configuration.
Referring to fig. 1 and 5 in combination, each of the four main legs 1 may include a main body 11 and a reinforcing plate 12, the main body 11 including a hot rolled H-section steel, for example HW150x150, the hot rolled H-section steel including first and second flanges 111 and 112 parallel to each other and a web 113 connected between the first and second flanges 111 and 112, the reinforcing plate 12 being connected between the first and second flanges 111 and 112 and perpendicular to the web 113. As can be seen from fig. 1, a plurality of parallel reinforcing plates 12 may be provided in both spaces formed by the first and second flanges 111, 112 and the web 113, i.e. the spaces on both sides of the web 113. In fig. 5, only one of the two spaces can be seen.
As can be seen from fig. 5, one main leg 1 and the corresponding one additional leg 3 are detachably connected together by means of a plurality of bolts 17, two bolts 17 being visible in fig. 5, and in fact two bolts being still not shown.
Referring to fig. 1, each of the two first cross beams 2 comprises a hot rolled U-shaped steel, for example a hot rolled channel steel U18. The four first reinforcement beams 4, the four second reinforcement beams 5 and the two second cross beams 6 may be hot rolled equilateral angle supports.
Referring to fig. 5, the first wing 111 and the second wing 112 are each provided with a first mounting portion 13 (for example, a reserved mounting hole), the first mounting portion 13 is configured to detachably mount the first beam 2, the first mounting portion 13 is disposed at a position on the first wing 111 different from a position disposed on the second wing 112, and in particular, the first mounting portion 13 is disposed at a position on the first wing 111 higher than a position disposed on the second wing 112.
Referring to fig. 2, each of the two first cross members 2 is provided with a second mounting portion 14 (e.g., a reserved mounting hole) for detachably mounting one end of the first reinforcing beam 4 and a third mounting portion 15 (e.g., a reserved mounting hole), the third mounting portion 15 for detachably mounting one end of the second reinforcing beam 5; and the upper ends of the four main legs 1 are provided with fourth mounting portions 16 (e.g., reserved mounting holes), and the fourth mounting portions 16 are used for mounting the other end of the first reinforcement beam 4 or the other end of the second reinforcement beam 5. The top surfaces of the four main legs 1 are each provided with a mounting plate 9 (shown in fig. 1), the mounting plates 9 being for contacting and supporting a can of the tank circuit breaker 20.
It will of course be appreciated that each of the four additional legs 3 may also comprise a body comprising a hot rolled H-section steel, for example HW150x150, comprising a first and a second wing parallel to each other and a web connected between the first and second wings, and a reinforcing plate connected between the first and second wings and perpendicular to the web.
It should be noted that in the working configuration, the connections between the various components of the main leg 1, the first cross member 2, the additional leg 3, the first reinforcement beam 4, the second reinforcement beam 5, the second cross member 6, etc. may be connected by a bolt-nut-washer assembly such as the outer hex head hot dip galvanized bolt M20x 90.
The bracket assembly is transitionable from an operating configuration to a transport configuration. The concrete assembly is as follows: the two first cross beams 2 are detached and turned 180 degrees to be mounted to the reserved mounting holes of the second wing plates 112 of the main support legs 1; the four first reinforcing beams 4, the four second reinforcing beams 5 and the two second cross beams 6 are disassembled, and the two first reinforcing beams 4, the two second reinforcing beams 5 and the two second cross beams 6 are respectively mounted to reserved mounting holes of the main supporting legs 1 and reserved mounting holes of the first cross beams 2; four ski-shaped feet 8 are mounted on the bottom plate of the four main legs 1, respectively, and are connected by a bolt-nut-washer assembly of 16 outer hex head hot dip galvanized bolts M18x 40.
During transportation, the bracket component in the transportation configuration is installed with the tank body of the tank-type circuit breaker, and only four additional supporting legs 3, two first reinforcing beams 4, two second reinforcing beams 5 and the like are required to be packaged independently. When it is desired to change the bracket assembly from the transport configuration to the working configuration, it is not necessary to remove the bracket assembly, only four additional legs 3 are installed and the positions of the first cross beam 2, the first reinforcement beam 4, the second reinforcement beam 5, the second cross beam 6 are adjusted.
If the height of the product is required, the heights of the four additional supporting legs 3 can be directly adjusted without changing the height of the main supporting leg 1, so that the transportation height requirement is ensured, and the field installation height requirement can be flexibly met.
The flexible removability of the bracket assembly for the tank circuit breaker of the invention satisfies the seamless connection and configuration of the working configuration and the transportation configuration.
The four main supporting legs and the four additional supporting legs are vertically arranged and can be independently split, and the height can be freely adjusted according to actual requirements, so that the requirements of different power stations on the height of the circuit breaker are met, the design of the transportation configuration is not influenced, and the transportation height requirement can be simultaneously ensured.
The four main supporting legs and the four additional supporting legs are mainly composed of hot-rolled H-shaped steel and are matched with the first reinforcing beam, the second reinforcing beam, the first cross beam, the second cross beam and the like, so that the high-load resistance is more advantageous, and the high-load resistance has more reliable mechanical and mechanical properties.
The four main supporting legs and the four additional supporting legs are vertically arranged, are arranged at 90 degrees relative to the installation plane, and are not designed at an acute angle or an obtuse angle (groveling type), so that the occupied area of actual installation is greatly reduced.
The production cost of the bracket component is reduced, the assembly efficiency is improved, and the mechanical properties are more reliable.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. Cradle assembly for a tank circuit breaker, characterized in that it has an operating configuration in which it is configured for supporting a tank circuit breaker (20), and a transport configuration in which it is configured for being transported by a transport means,
wherein, the support subassembly includes:
-a plurality of main legs (1), each of said main legs (1) comprising an upper end and a lower end, said upper ends being configured for supporting at least a portion of the tank circuit breaker (20) in both the operating configuration and the transport configuration;
-at least one first cross member (2), each of said first cross members (2) being detachably connected between two of said main legs (1) of said plurality of main legs (1); and
-a plurality of additional legs (3) in one-to-one correspondence with a plurality of said main legs (1), each of said additional legs (3) comprising an upper end and a lower end, in said operative configuration the upper end of each of said additional legs (3) being respectively removably connected to the lower end of a corresponding said main leg (1), and in said transport configuration the upper end of each of said additional legs (3) being respectively detached from the lower end of a corresponding said main leg (1);
In the operating configuration, the upper end of each of the additional legs (3) respectively butts against the lower end of the corresponding main leg (1), each of the additional legs (3) and the corresponding main leg (1) being arranged perpendicularly to a ground reference plane, such that the overall height of the bracket assembly increases by a distance corresponding to the length of the additional leg (3) with respect to the transport configuration;
wherein the plurality of main legs (1) comprises four main legs (1) and the plurality of additional legs (3) comprises four additional legs (3), each of the four main legs (1) and each of the four additional legs (3) being arranged perpendicularly to a ground reference surface in the operating configuration;
wherein the bracket assembly further comprises four seats (7), in the operating configuration four seats (7) being arranged to be mounted to the lower ends of four of the additional legs (3), respectively;
wherein the cradle assembly further comprises four ski-shaped feet (8), both ends of the ski-shaped feet (8) being raised upwardly relative to the middle, in the transport configuration each of the four main legs (1) being arranged vertically, the four ski-shaped feet (8) being arranged to be mounted to the lower ends of the four main legs (1), respectively;
Wherein at least one of said first cross beams (2) comprises two first cross beams (2);
wherein four of said main legs (1) have the same length, four of said additional legs (3) have the same length, two of said first cross beams (2) have the same length, and two of said first cross beams (2) are horizontally arranged parallel to each other in both said working configuration and said transport configuration;
and in the operating configuration, four of the main legs (1) and four of the additional legs (3) are positioned along the four corners of a rectangle in a top plan view and two of the first cross members (2) are positioned in two vertical planes in which the two long sides of the rectangle are located;
wherein the bracket assembly further comprises a plurality of first reinforcement beams (4), one end of each first reinforcement beam (4) being detachably connected to one of the additional legs (3) in the operating configuration, the other end of each first reinforcement beam (4) being detachably connected to one of the first cross beams (2), each first reinforcement beam (4) being arranged obliquely with respect to the additional leg (3) and each first reinforcement beam (4) lying in a vertical plane in which the long side of the rectangle lies;
Wherein the bracket assembly further comprises a plurality of second reinforcement beams (5), in the operating configuration, one end of each second reinforcement beam (5) being detachably connected to one of the main legs (1), the other end of each second reinforcement beam (5) being detachably connected to one of the additional legs (3), each second reinforcement beam (5) being arranged obliquely with respect to the main leg (1), and each second reinforcement beam (5) being located in a vertical plane in which the short side of the rectangle lies;
wherein said rack assembly further comprises two second cross beams (6), in said operative configuration, one end of each of said second cross beams (6) being detachably connected to one of said additional legs (3), the other end of each of said second cross beams (6) being detachably connected to an adjacent one of said additional legs (3), each of said second cross beams (6) being arranged horizontally and lying in a vertical plane in which the short sides of said rectangle lie;
and wherein upon transition of the bracket assembly from the operating configuration to the transport configuration, the assembly is as follows: the two first cross beams are detached and turned 180 degrees to be installed to the reserved installation holes of the main supporting legs; removing the four first reinforcing beams, the four second reinforcing beams and the two second cross beams, mounting the two first reinforcing beams and the two second reinforcing beams to reserved mounting holes of the main supporting legs and reserved mounting holes of the first cross beams, and mounting the two second cross beams to reserved mounting holes of the main supporting legs; during transportation, the bracket component in the transportation configuration and the tank body of the tank-type circuit breaker are installed together, and only four additional supporting legs, two first reinforcing beams and two second reinforcing beams are required to be packaged independently; when the bracket assembly is required to be changed from the transportation configuration to the working configuration, the bracket assembly is not required to be removed, and only four additional supporting legs are required to be installed and the positions of the first cross beam, the first reinforcing beam, the second reinforcing beam and the second cross beam are required to be adjusted.
2. Cradle assembly for a tank circuit breaker according to claim 1, characterized in that in the operating configuration both ends of each first beam (2) are connected to the upper position of the main leg (1) and both ends of each second beam (6) are connected to the lower position of the additional leg (3).
3. The cradle assembly for a tank circuit breaker according to claim 1, wherein,
each of the four main legs (1) comprises a main body (11) and a reinforcing plate (12), the main body (11) comprising a hot rolled H-section steel comprising a first wing (111) and a second wing (112) parallel to each other and a web (113) connected between the first wing (111) and the second wing (112), the reinforcing plate (12) being connected between the first wing (111) and the second wing (112) and perpendicular to the web (113);
and each of the two first cross beams (2) comprises hot rolled U-shaped steel.
4. A bracket assembly for a tank circuit breaker according to claim 3, characterized in that,
the first wing plate (111) and the second wing plate (112) are respectively provided with a first installation part (13), and the first installation parts (13) are used for detachably installing the first cross beam (2);
Each of the two first cross beams (2) is provided with a second mounting part (14) and a third mounting part (15), the second mounting part (14) is used for detachably mounting one end of the first reinforcing beam (4), and the third mounting part (15) is used for detachably mounting one end of the second reinforcing beam (5);
and the upper ends of the four main supporting legs (1) are respectively provided with a fourth installation part (16), and the fourth installation parts (16) are used for installing the other end of the first reinforcing beam (4) or the other end of the second reinforcing beam (5).
5. The method of transporting and assembling a cradle assembly for a tank circuit breaker according to claim 1, wherein the method comprises a first assembly step and a second transport step:
in the first assembly step, the cradle assembly is arranged in an operating configuration in which the cradle assembly is configured for supporting a tank circuit breaker (20), the first assembly step comprising the steps of:
-providing a plurality of main legs (1), each of the main legs (1) comprising an upper end and a lower end, the upper ends being configured for supporting at least a portion of the tank circuit breaker (20);
-providing at least one first cross member (2), detachably connecting each of said first cross members (2) between two of said main legs (1) of said plurality of main legs (1); and
providing a plurality of additional legs (3) in one-to-one correspondence with a plurality of said main legs (1), each of said additional legs (3) comprising an upper end and a lower end, the upper end of each of said additional legs (3) being detachably connected to the lower end of the corresponding main leg (1), respectively;
in the second transporting step, the rack assembly is arranged in a transporting configuration in which the rack assembly is configured to be adapted to be transported by a transport means, the second transporting step comprising the steps of:
-detaching the upper end of each of said additional legs (3) from the lower end of the corresponding main leg (1), respectively;
transporting the cradle assembly with a transport vehicle, during which at least a portion of the tank circuit breaker (20) is supported at the upper end of each of the main legs (1);
in the operating configuration, the upper end of each of the additional legs (3) respectively butts against the lower end of the corresponding main leg (1), each of the additional legs (3) and the corresponding main leg (1) being arranged perpendicularly to a ground reference plane, such that the overall height of the bracket assembly increases by a distance corresponding to the length of the additional leg (3) with respect to the transport configuration;
Wherein a plurality of said main legs (1) comprises four main legs (1) and a plurality of said additional legs (3) comprises four additional legs (3), each of the four main legs (1) and each of the four additional legs (3) being arranged perpendicular to a ground reference plane in said first assembling step,
wherein the first assembling step further comprises the steps of: -providing four bases (7), mounting the four bases (7) onto the lower ends of the four additional legs (3), respectively;
and wherein the second transporting step further comprises the steps of: four ski-shaped feet (8) are provided, the four ski-shaped feet (8) are respectively mounted on the lower ends of the four main legs (1) which are vertically arranged, and two ends of the ski-shaped feet (8) are upwards tilted relative to the middle.
6. Method of transporting and assembling a bracket assembly for a tank circuit breaker according to claim 5, characterized in that at least one of said first beams (2) comprises two first beams (2), four of said main legs (1) having the same length, four of said additional legs (3) having the same length, two of said first beams (2) having the same length,
In the first assembly step, two of the first beams (2) are arranged parallel to each other in the horizontal direction, four of the main legs (1) and four of the additional legs (3) are positioned in a top plane along four corners of a rectangle, and two of the first beams (2) are positioned in two vertical planes in which two long sides of the rectangle are located;
and in the second transportation step, each first cross member (2) is detached and reinstalled at a further position of the respective two main legs (1) below the installation position of each first cross member (2) in the working configuration.
7. The method of transporting and assembling a cradle assembly for a tank circuit breaker according to claim 6, further comprising the steps of, in the first assembling step: -providing a plurality of first reinforcement beams (4), positioning each of said first reinforcement beams (4) in a vertical plane in which the long sides of said rectangle lie, -detachably connecting one end of each of said first reinforcement beams (4) to the lower end of one of said additional legs (3), -detachably connecting the other end of each of said first reinforcement beams (4) to one of said first cross beams (2), -arranging each of said first reinforcement beams (4) to be inclined with respect to said additional leg (3);
And in the second transportation step, each of the first reinforcement beams (4) is detached, and then one end of each of two of the plurality of first reinforcement beams (4) is mounted to the upper end of the main leg (1), and the other end of each is mounted to the first cross member (2).
8. The method of transporting and assembling a cradle assembly for a tank circuit breaker according to claim 7, further comprising the steps of, in the first assembling step: providing a plurality of second reinforcement beams (5), positioning each second reinforcement beam (5) in a vertical plane where a short side of the rectangle is located, detachably connecting one end of each second reinforcement beam (5) to an upper end of one main leg (1), and detachably connecting the other end of each second reinforcement beam (5) to a lower end of one adjacent additional leg (3), so that each second reinforcement beam (5) is arranged obliquely with respect to the main leg (1);
and in the second transportation step, each of the second reinforcement beams (5) is detached, and then one end of each of two of the plurality of second reinforcement beams (5) is mounted to the main leg (1) and the other end of each is mounted to the first cross member (2).
9. The method of transporting and assembling a cradle assembly for a tank circuit breaker according to claim 8, further comprising the steps of, in the first assembling step: -providing two second cross beams (6), one end of each second cross beam (6) being detachably connected to one of the additional legs (3), the other end of each second cross beam (6) being detachably connected to one of the adjacent additional legs (3), each second cross beam (6) being arranged horizontally and positioned in a vertical plane in which the short sides of the rectangle lie;
and in the second transportation step, each of the second cross members (6) is detached, and then one end of each of the second cross members (6) is detachably connected to one of the main legs (1), and the other end of each of the second cross members (6) is detachably connected to one of the adjacent main legs (1), and each of the second cross members (6) is arranged horizontally and positioned in a vertical plane in which a short side of the rectangle is located.
10. The method of transportation and assembly of a bracket assembly for a tank circuit breaker according to claim 8 or 9, characterized in that each of the four main legs (1) comprises a main body (11) and a reinforcing plate (12), the main body (11) comprising a hot rolled H-profile comprising a first wing (111) and a second wing (112) parallel to each other and a web (113) connected between the first wing (111) and the second wing (112), the reinforcing plate (12) being connected between the first wing (111) and the second wing (112) and perpendicular to the web (113);
Wherein in the first assembling step, both ends of each first cross member (2) are respectively mounted to the first wing plates (111) of the corresponding two main legs (1) such that each first cross member (2) is located outside the corresponding two main legs (1);
wherein in the second transportation step, each of the first beams (2) is detached and turned 180 ° and then both ends of each of the first beams (2) are mounted to the second flanges (112) of the corresponding two main legs (1) so that each of the first beams (2) is located inside the corresponding two main legs (1).
CN202311448128.XA 2023-09-21 2023-11-01 Bracket assembly for tank circuit breaker and method of transporting and assembling the assembly Active CN117174525B (en)

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