CN216145544U - Conductive switching transmission mechanism of vacuum circuit breaker - Google Patents
Conductive switching transmission mechanism of vacuum circuit breaker Download PDFInfo
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- CN216145544U CN216145544U CN202121976342.9U CN202121976342U CN216145544U CN 216145544 U CN216145544 U CN 216145544U CN 202121976342 U CN202121976342 U CN 202121976342U CN 216145544 U CN216145544 U CN 216145544U
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- moving contact
- isolation moving
- transmission mechanism
- driving
- circuit breaker
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Abstract
The utility model discloses a conductive on-off transmission mechanism of a vacuum circuit breaker, which comprises a transverse bracket connected with a mechanism box; the transverse bracket is longitudinally connected with three vacuum bubble insulating brackets in a front-back sequence; a vacuum bubble and a connecting rod transmission mechanism for controlling the vacuum bubble to be combined and separated are arranged in the vacuum bubble insulating support, and an upper isolation moving contact lifting component and a lower isolation moving contact lifting component which are used for connecting the contact finger components are arranged at two ends of the vacuum bubble insulating support; the upper isolation moving contact lifting component and the lower isolation moving contact lifting component are controlled to lift through a transmission mechanism located on the side of the transverse support. The power shaft drives the upper transmission shaft and the lower transmission shaft to rotate so as to drive the upper isolation moving contact and the lower isolation moving contact to move to complete the conductive on-off action, the structure is simple and reliable, the risk of misoperation is low, and meanwhile, the up-and-down linkage operation can be conveniently realized.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a conductive on-off transmission mechanism of a vacuum circuit breaker.
Background
Along with the continuous development of national economy, the power grid structure and the load characteristic are increasingly complicated, more strict requirements are provided for the electric energy quality and the operation reliability, and in order to ensure the safety of the maintenance of the high-voltage transmission line, most of the high-voltage circuit breakers arranged on the outdoor high-voltage transmission line are provided with isolating switches. The isolating switch is a switch device which separates the equipment or the circuit needing to be overhauled from a power supply by an obvious disconnection point so as to ensure the safety of maintainers and equipment. The common outdoor high-voltage alternating-current vacuum circuit breakers widely used in the market at present are mainly divided into non-isolated type, single-side isolated type and double-side isolated type, and compared with the former two types, the double-isolated type high-voltage vacuum circuit breaker respectively forms an obvious fracture at two ends after the switch is segmented, so that the maintenance and the use are safer and more reliable, and the use is more convenient for a looped network power supply place. When the high-voltage vacuum circuit breaker is provided with the isolating switch, reliable interlocking is needed to prevent misoperation.
Therefore, a simple, stable and safe structure is urgently needed for the opening and closing actions of the isolation of the double-isolation type circuit breaker in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide the conductive on-off transmission mechanism of the vacuum circuit breaker, which has the advantages of compact structure, high safety factor and simple structure.
The utility model is realized by the following modes:
a vacuum circuit breaker conductive on-off transmission mechanism comprises a transverse bracket connected with a mechanism box; the transverse bracket is longitudinally connected with three vacuum bubble insulating brackets in a front-back sequence; be equipped with the link drive mechanism that vacuum bubble and control vacuum bubble closed and divide in the vacuum bubble insulating support, its characterized in that: an upper isolation moving contact lifting component and a lower isolation moving contact lifting component which are used for connecting the contact finger components are arranged at two ends of the vacuum bubble insulating support; the upper isolation moving contact lifting component and the lower isolation moving contact lifting component are controlled to lift through a transmission mechanism positioned on the side of the transverse support; the transmission mechanism comprises a power shaft connected with the mechanism box; the power shaft is arranged in parallel to the transverse bracket; a transmission bevel gear is arranged on the power shaft opposite to the vacuum bubble insulating bracket; an upper transmission shaft and a lower transmission shaft are meshed at the upper end and the lower end of the transmission bevel gear; the upper transmission shaft is connected with the upper isolation moving contact lifting assembly; the lower transmission shaft is connected with the lower isolation moving contact lifting component.
Further, the transverse support is rotatably connected with the mechanism box.
Furthermore, the upper isolation moving contact lifting component comprises an upper conductive cylinder fixedly sealed with the upper end of the vacuum bubble insulating support; an upper isolation moving contact is movably connected in the upper conductive cylinder; the lower isolation moving contact lifting component comprises a lower conductive cylinder fixedly sealed with the lower end of the vacuum bubble insulating support; and a lower isolation moving contact is movably connected in the lower conductive cylinder.
Furthermore, the upper isolation moving contact and the lower isolation moving contact are cylindrical; the inner parts of the upper isolation moving contact and the lower isolation moving contact are both in threaded connection with a driving piece; the driving member is driven to rotate by a transmission mechanism 8.
Furthermore, a driving tooth is arranged at the end part of the upper transmission shaft; the driving teeth are meshed with the driving piece through a plurality of connecting gears; and the central shaft part of the driving piece is in threaded connection with an upper isolation moving contact in the upper isolation moving contact lifting assembly and is used for driving the upper isolation moving contact to move up and down.
Furthermore, a driving tooth is arranged at the end part of the lower transmission shaft; the driving teeth are meshed with the driving piece through a plurality of connecting gears; and the central shaft part of the driving piece is in threaded connection with a lower isolation moving contact in the lower isolation moving contact lifting assembly and is used for driving the lower isolation moving contact to move up and down.
Further, the connecting gear is provided with two connecting gears.
Furthermore, the end part of the upper transmission shaft is connected with the driving part through a chain and is used for driving the upper isolation moving contact to move up and down; the lower transmission shaft is connected with the driving piece through a chain and is used for driving the lower isolation moving contact to move up and down.
The utility model has the beneficial effects that: the power shaft drives the upper transmission shaft and the lower transmission shaft to rotate so as to drive the upper isolation moving contact and the lower isolation moving contact to act to complete the action of conducting connection and disconnection, the structure is simple and reliable, the risk of misoperation is small, and meanwhile, the up-and-down linkage operation can be conveniently realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a double isolation structure of a vacuum circuit breaker according to the present invention;
FIG. 2 is an enlarged view of portion A of the present invention;
FIG. 3 is a schematic view of the structure of the transmission mechanism of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
as shown in fig. 1-3, a conductive on-off transmission mechanism of a vacuum circuit breaker comprises a transverse bracket 1 connected with a mechanism box; the transverse bracket 1 is longitudinally connected with three vacuum bubble insulating brackets 2 in a front-back sequence; a vacuum bubble and a connecting rod transmission mechanism for controlling the closing and opening of the vacuum bubble are arranged in the vacuum bubble insulating support 2, and an upper isolated moving contact lifting component 5 and a lower isolated moving contact lifting component 6 which are used for connecting the contact finger component 4 are arranged at two ends of the vacuum bubble insulating support 2; the upper isolation moving contact lifting component 5 and the lower isolation moving contact lifting component 6 are controlled to lift through a transmission mechanism 8 positioned on the side of the transverse support 1; the transmission mechanism 8 comprises a power shaft 81 connected with the mechanism box; the power shaft 81 is arranged in parallel to the transverse bracket 1; a transmission bevel gear 82 is arranged on the power shaft 81 opposite to the vacuum bubble insulating bracket 2; the upper end and the lower end of the transmission bevel gear 82 are engaged with an upper transmission shaft 83 and a lower transmission shaft 84; the upper transmission shaft 83 is connected with the upper isolation moving contact lifting component 5; the lower transmission shaft 84 is connected with the lower isolated moving contact lifting assembly 6.
Further, the transverse support 1 is rotatably connected with the mechanism box.
Further, the upper isolation moving contact lifting component 5 comprises an upper conductive cylinder 51 fixedly sealed with the upper end of the vacuum bubble insulating support 2; an upper isolation moving contact 52 is movably connected in the upper conductive tube 51; the lower isolation moving contact lifting component 6 comprises a lower conductive cylinder 61 fixedly sealed with the lower end of the vacuum bubble insulating bracket 2; the lower conductive tube 61 is movably connected with a lower isolation moving contact 62.
Further, the upper isolating movable contact 52 and the lower isolating movable contact 62 are cylindrical; the driving piece 833 is connected to the inner parts of the upper isolating moving contact 52 and the lower isolating moving contact 62 through threads; the driving member 833 is driven to rotate by the transmission mechanism 8.
Further, a driving tooth 831 is arranged at the end part of the upper transmission shaft 83; the driving teeth 831 are meshed with a driving piece 833 through a plurality of connecting gears 832; the central shaft part of the driving member 833 is in threaded connection with the upper isolating movable contact 52 in the upper isolating movable contact lifting assembly 5 to drive the upper isolating movable contact 52 to move up and down.
Further, a driving tooth 831 is arranged at the end of the lower transmission shaft 84; the driving teeth 831 are meshed with a driving piece 833 through a plurality of connecting gears 832; the central shaft part of the driving member 833 is in threaded connection with the lower isolation moving contact 62 in the lower isolation moving contact lifting assembly 6 to drive the lower isolation moving contact 62 to move up and down.
Further, two connecting gears 832 are provided.
Further, the end of the upper transmission shaft 83 is connected with the driving element 833 through a chain for driving the upper isolation moving contact 52 to move up and down; the lower transmission shaft 84 is connected with the driving member 833 through a chain for driving the lower isolation movable contact 62 to move up and down.
The working principle is as follows: the mechanism box further drives the driving piece 833 to rotate by controlling the power shaft 81 to rotate, so that the upper isolation moving contact 52 and the lower isolation moving contact 62 are connected with the contact finger assembly to enter a main loop finally; the upper isolation moving contact and the lower isolation moving contact are driven to move to complete the conductive on-off action by driving the upper transmission shaft and the lower transmission shaft to rotate through the power shaft, the structure is simple and reliable, the risk of misoperation is low, and meanwhile, the up-and-down linkage operation can be conveniently realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A vacuum circuit breaker conductive on-off transmission mechanism comprises a transverse bracket (1) connected with a mechanism box; the transverse bracket (1) is longitudinally connected with three vacuum bubble insulating brackets (2) in a front-back sequence; be equipped with the link drive mechanism that vacuum bubble and control vacuum bubble divide that closes in vacuum bubble insulating support (2), its characterized in that: an upper isolation moving contact lifting component (5) and a lower isolation moving contact lifting component (6) which are used for connecting the contact finger component (4) are arranged at two ends of the vacuum bubble insulating support (2); the upper isolation moving contact lifting component (5) and the lower isolation moving contact lifting component (6) are controlled to lift through a transmission mechanism (8) positioned on the side of the transverse bracket (1); the transmission mechanism (8) comprises a power shaft (81) connected with the mechanism box; the power shaft (81) is arranged in parallel to the transverse bracket (1); a transmission bevel gear (82) is arranged on the power shaft (81) opposite to the vacuum bubble insulating bracket (2); an upper transmission shaft (83) and a lower transmission shaft (84) are meshed at the upper end and the lower end of the transmission bevel gear (82); the upper transmission shaft (83) is connected with the upper isolation moving contact lifting component (5); the lower transmission shaft (84) is connected with the lower isolation moving contact lifting component (6).
2. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 1, wherein: the transverse support (1) is rotatably connected with the mechanism box.
3. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 1, wherein: the upper isolation moving contact lifting component (5) comprises an upper conductive cylinder (51) fixedly sealed with the upper end of the vacuum bubble insulating support (2); an upper isolation moving contact (52) is movably connected in the upper conductive cylinder (51); the lower isolation moving contact lifting component (6) comprises a lower conductive cylinder (61) fixedly sealed with the lower end of the vacuum bubble insulating support (2); and a lower isolation moving contact (62) is movably connected in the lower conductive cylinder (61).
4. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 3, wherein: the upper isolation moving contact (52) and the lower isolation moving contact (62) are cylindrical; the inner parts of the upper isolation moving contact (52) and the lower isolation moving contact (62) are both in threaded connection with a driving piece (833); the driving piece (833) is driven to rotate by the transmission mechanism (8).
5. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 1, wherein: the end part of the upper transmission shaft (83) is provided with a driving tooth (831); the driving tooth (831) is meshed with the driving piece (833) through a plurality of connecting gears (832); the central shaft part of the driving piece (833) is in threaded connection with the upper isolating moving contact (52) in the upper isolating moving contact lifting assembly (5) and is used for driving the upper isolating moving contact (52) to move up and down.
6. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 1, wherein: the end part of the lower transmission shaft (84) is provided with a driving tooth (831); the driving tooth (831) is meshed with the driving piece (833) through a plurality of connecting gears (832); and the central shaft part of the driving piece (833) is in threaded connection with the lower isolating moving contact (62) in the lower isolating moving contact lifting assembly (6) and is used for driving the lower isolating moving contact (62) to move up and down.
7. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 5 or 6, wherein: the number of the connecting gears (832) is two.
8. The electric conduction on-off transmission mechanism of the vacuum circuit breaker as claimed in claim 1, wherein: the end part of the upper transmission shaft (83) is connected with the driving piece (833) through a chain and is used for driving the upper isolation moving contact (52) to move up and down; the lower transmission shaft (84) is connected with the driving piece (833) through a chain and is used for driving the lower isolation moving contact (62) to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976342.9U CN216145544U (en) | 2021-08-20 | 2021-08-20 | Conductive switching transmission mechanism of vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121976342.9U CN216145544U (en) | 2021-08-20 | 2021-08-20 | Conductive switching transmission mechanism of vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216145544U true CN216145544U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121976342.9U Active CN216145544U (en) | 2021-08-20 | 2021-08-20 | Conductive switching transmission mechanism of vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216145544U (en) |
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2021
- 2021-08-20 CN CN202121976342.9U patent/CN216145544U/en active Active
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