CN212303543U - Power-assisted vacuum circuit breaker on column - Google Patents
Power-assisted vacuum circuit breaker on column Download PDFInfo
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- CN212303543U CN212303543U CN202020958477.1U CN202020958477U CN212303543U CN 212303543 U CN212303543 U CN 212303543U CN 202020958477 U CN202020958477 U CN 202020958477U CN 212303543 U CN212303543 U CN 212303543U
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Abstract
The utility model discloses a power-assisted column vacuum circuit breaker, including transmission case and the vacuum bubble of installing on the transmission case, install drive arrangement and drive assembly that the movable conducting rod that is used for controlling in the vacuum bubble reciprocated in the transmission case, drive assembly includes main transfer line, connecting rod, reset spring and helping hand spring, main transfer line horizontal sliding installs in the transmission case, and main transfer line and each vacuum bubble move between the conducting rod through the connecting rod transmission connection; the return spring and the power-assisted spring are both connected between the main transmission rod and the box body of the transmission box, wherein the return spring is parallel to the main transmission rod, the power-assisted spring is vertical to the main transmission rod, and the power-assisted spring is a compression spring; the utility model discloses a vacuum circuit breaker on helping hand formula post, the disconnection process, helping hand spring can produce great thrust to it along with the removal of main transfer line, and then the action is sent fast to auxiliary drive device control transmission assembly, drives the quick disconnection of the movable conducting rod of vacuum bubble.
Description
Technical Field
The utility model belongs to the technical field of power equipment, especially, relate to a vacuum circuit breaker on helping hand formula post.
Background
The outdoor high-voltage vacuum circuit breaker is used as key equipment for controlling and protecting the safe operation of a power grid, and the main function of the outdoor high-voltage vacuum circuit breaker is mainly that a driving mechanism arranged in the circuit breaker drives a moving contact in a vacuum bubble to move up and down, so that the moving contact at the lower end in a vacuum arc extinguish chamber and a fixed contact at the upper end are opened or closed, and the current is disconnected and closed in the operation of the power grid. When the circuit breaker operates in a power grid, a large current and a high voltage are loaded between a movable contact and a fixed contact of an arc extinguish chamber. Especially when the grid fails, such as: the line is short-circuited and the line is subjected to a lightning impulse, in which case the instantaneous current in the line will exceed the rated current by a few times. This requires the circuit breaker to be opened at an extremely high speed in an extremely short time, to avoid the occurrence of a restrike phenomenon, and to prevent the generation of overvoltage to burn out the power equipment.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a vacuum circuit breaker on helping hand formula post, the disconnection process, the helping hand spring can produce great thrust to it along with the removal of main transfer line, and then the action is sent fast to auxiliary drive device control transmission assembly, drives the quick disconnection of moving conducting rod of vacuum bubble.
The utility model discloses a vacuum circuit breaker on helping hand formula post, including transmission case and the vacuum bubble of installing on the transmission case, install drive arrangement and drive assembly that the conducting rod that moves that is used for controlling in the vacuum bubble reciprocates in the transmission case, drive assembly includes main transfer line, connecting rod, reset spring and helping hand spring, main transfer line horizontal sliding mounting is in the transmission case, and main transfer line and the moving conducting rod of each vacuum bubble are connected through the connecting rod transmission; the return spring and the power-assisted spring are both connected between the main transmission rod and the box body of the transmission box, wherein the return spring is parallel to the main transmission rod, the power-assisted spring is vertical to the main transmission rod, and the power-assisted spring is a compression spring; the fact that the power-assisted spring is perpendicular to the main transmission rod means that when the vacuum bubble is in a closing state, the power-assisted spring is perpendicular to the main transmission rod and does not affect the stability of closing; when the main transmission rod needs to be disconnected, the main transmission rod moves, the power-assisted spring gradually inclines, axial thrust is further generated on the main transmission rod, and the auxiliary driving device controls the main transmission rod to rapidly send out actions.
Furthermore, the power spring is provided with a plurality of power springs, and the power springs are uniformly distributed around the main transmission rod; when the switch is switched on, the elastic forces of the power-assisted springs are mutually offset, and when the switch is switched off, the power-assisted springs simultaneously provide axial thrust for the main transmission rod, so that the switch is switched off more quickly.
Furthermore, the power spring is connected with the main transmission rod and the box body of the transmission box through spring fixing seats respectively, the spring fixing seats are connected with the corresponding main transmission rod or the box body of the transmission box through pins in a rotating mode, two ends of the power spring are fixedly welded on the spring fixing seats, the power spring can adapt to the movement of the main transmission rod, the power spring is enabled to bear the action of axial force all the time, and the overall stress performance is good.
Furthermore, a telescopic rod is fixed between two spring fixing seats at two ends of each power spring, the power springs are sleeved outside the telescopic rods, the two spring fixing seats can be kept right opposite to each other all the time through the guiding effect of the telescopic rods, meanwhile, the power springs can be effectively radially limited, the structural stability is ensured, and the power springs are prevented from shifting.
Furthermore, the telescopic rod is formed by sleeving two sleeves together, the two sleeves are in axial sliding fit, and the sleeves and the corresponding spring fixing seats are welded and fixed.
The utility model has the advantages that: the utility model discloses a vacuum circuit breaker on helping hand formula post, the disconnection process, helping hand spring can produce great thrust to it along with the removal of main transfer line, and then the action is sent fast to auxiliary drive device control transmission assembly, drives the quick disconnection of the movable conducting rod of vacuum bubble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1: the power-assisted column vacuum circuit breaker comprises a transmission case 1 and vacuum bubbles 9 arranged on the transmission case 1, wherein a driving device 8 and a transmission assembly for controlling a movable conducting rod 10 in each vacuum bubble 9 to move up and down are arranged in the transmission case 1, the transmission assembly comprises a main transmission rod 3, a connecting rod 4, a return spring 2 and a power-assisted spring 5, the main transmission rod 3 is horizontally and slidably arranged in the transmission case 1, and the main transmission rod 3 is in transmission connection with the movable conducting rods 10 of the vacuum bubbles 9 through the connecting rods 4; the reset spring 2 and the power-assisted spring 5 are both connected between the main transmission rod 3 and the box body 11 of the transmission box 1, wherein the reset spring 2 is parallel to the main transmission rod 3, the power-assisted spring 5 is vertical to the main transmission rod 3, and the power-assisted spring 5 is a compression spring; the fact that the power spring 5 is perpendicular to the main transmission rod 3 means that when the vacuum bubble 9 is in a closing state, the power spring 5 is perpendicular to the main transmission rod 3 and does not hinder the stability of closing; when the main transmission rod 3 needs to be disconnected, the power-assisted spring 5 gradually inclines, axial thrust is further generated on the main transmission rod 3, and the auxiliary driving device 8 controls the main transmission rod 3 to rapidly send out actions.
In this embodiment, there are a plurality of the assist springs 5, and each assist spring 5 is uniformly distributed around the main transmission rod 3; when the switch is switched on, the elastic force of each power spring 5 is counteracted, and when the switch is switched off, each power spring 5 simultaneously provides axial thrust for the main transmission rod 3, so that the switch is switched off more quickly.
In this embodiment, the power spring 5 is connected with the main transmission rod 3 and the box body 11 of the transmission case 1 through the spring fixing seat 7, the spring fixing seat 7 is rotatably connected with the corresponding main transmission rod 3 or the box body 11 of the transmission case 1 through a pin, two ends of the power spring 5 are welded and fixed on the spring fixing seat 7, and the power spring 5 can adapt to the movement of the main transmission rod 3, so that the power spring 5 always bears the action of an axial force, and the overall stress performance is good.
In this embodiment, a telescopic rod 6 is fixed between two spring fixing seats 7 at two ends of each power spring 5, the power spring 5 is sleeved outside the telescopic rod 6, the two spring fixing seats 7 can be kept right opposite to each other all the time through the guiding action of the telescopic rod 6, and meanwhile, the effective radial limiting action can be performed on the power spring 5, so that the structural stability is ensured, and the power spring 5 is prevented from shifting.
In this embodiment, the telescopic rod 6 is formed by sleeving two sleeves together, the two sleeves are in axial sliding fit, and the sleeves and the corresponding spring fixing seats 7 are welded and fixed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. The utility model provides a vacuum circuit breaker on helping hand formula post, includes the transmission case and installs the vacuum bubble on the transmission case, install drive arrangement and drive assembly that the conducting rod that moves that is used for controlling in the vacuum bubble reciprocated in the transmission case, its characterized in that: the transmission assembly comprises a main transmission rod, a connecting rod, a return spring and a power-assisted spring, the main transmission rod is horizontally and slidably arranged in the transmission box, and the main transmission rod is in transmission connection with the movable conducting rods of the vacuum bubbles through the connecting rod; the return spring and the power-assisted spring are both connected between the main transmission rod and the box body of the transmission box, wherein the return spring is parallel to the main transmission rod, the power-assisted spring is perpendicular to the main transmission rod, and the power-assisted spring is a compression spring.
2. A power-assisted pole vacuum interrupter as defined in claim 1 wherein: the power spring has a plurality of, and each power spring evenly distributed around the main drive pole.
3. A power-assisted pole vacuum interrupter as defined in claim 2 wherein: the boosting spring is connected with the main transmission rod and the box body of the transmission box through spring fixing seats respectively, and the spring fixing seats are rotatably connected with the corresponding main transmission rod or the box body of the transmission box through pins.
4. A power-assisted pole vacuum interrupter as defined in claim 3 wherein: a telescopic rod is fixed between the two spring fixing seats at the two ends of each power-assisted spring, and the power-assisted springs are sleeved outside the telescopic rods.
5. The power assisted on-pole vacuum circuit breaker of claim 4, wherein: the telescopic rod is formed by sleeving two sleeves together, the two sleeves are in axial sliding fit, and the sleeves and the corresponding spring fixing seats are welded and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958477.1U CN212303543U (en) | 2020-05-27 | 2020-05-27 | Power-assisted vacuum circuit breaker on column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958477.1U CN212303543U (en) | 2020-05-27 | 2020-05-27 | Power-assisted vacuum circuit breaker on column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212303543U true CN212303543U (en) | 2021-01-05 |
Family
ID=73940462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020958477.1U Active CN212303543U (en) | 2020-05-27 | 2020-05-27 | Power-assisted vacuum circuit breaker on column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212303543U (en) |
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2020
- 2020-05-27 CN CN202020958477.1U patent/CN212303543U/en active Active
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