CN113270288A - Connecting structure of high-voltage circuit breaker operating mechanism - Google Patents
Connecting structure of high-voltage circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN113270288A CN113270288A CN202110401545.3A CN202110401545A CN113270288A CN 113270288 A CN113270288 A CN 113270288A CN 202110401545 A CN202110401545 A CN 202110401545A CN 113270288 A CN113270288 A CN 113270288A
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- operating mechanism
- circuit breaker
- transmission case
- actuator
- crank arm
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- 230000007246 mechanism Effects 0.000 title claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims abstract description 64
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 8
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a connecting structure of a high-voltage circuit breaker operating mechanism, which comprises a box body, a circuit breaker transmission case and a horizontal plate, wherein the box body is provided with a first connecting plate and a second connecting plate; the breaker transmission case is arranged in the case body; the horizontal plate is arranged below the transmission case of the circuit breaker; the box body is provided with a side wall, one side surface of the operating mechanism is connected with the side wall, and the top of the operating mechanism is connected with the horizontal plate; the horizontal plate is perpendicular to the side wall. The invention can effectively improve the connection rigidity of the operating mechanism, inhibit the swing of the operating mechanism during action, relieve the impact of the transmission direction on the operating mechanism and improve the reliability of the operating mechanism. The invention has the advantages of high reliability, simple structure, long mechanical life and the like, and can ensure better long-term operation of the high-voltage circuit breaker.
Description
Technical Field
The invention relates to the technical field of operating mechanisms of high-voltage circuit breakers, in particular to a connecting structure of an operating mechanism of a high-voltage circuit breaker.
Background
With the vigorous development of the power industry of various countries in the world, the advancement and reliability of a high-voltage circuit breaker serving as a key control protection device of a power grid are more and more valued by users. The operating mechanism is an electrical control device used for operating the high-voltage circuit breaker, and the reliability of the operating mechanism directly reflects the reliability of a high-voltage circuit breaker product. The connection structure of the operating mechanism determines the overall transmission scheme of the high-voltage circuit breaker, and the manufacturing cost of the operating mechanism is influenced to a great extent. The connection of the operating mechanism is also a key link in the assembling and debugging process of the high-voltage circuit breaker, and further influences the overall performance of the circuit breaker. Therefore, the connecting structure has the advantages of reliable fixation, simple structure and high assembly efficiency, and has great practical value and economic value. Some connecting structures in the prior art do not well fix the operating mechanism, directly cause the operating mechanism to swing during action, increase the impact of the transmission direction on the operating mechanism, and influence the reliability of the operating mechanism.
Disclosure of Invention
The invention aims to provide a connecting structure of an operating mechanism of a high-voltage circuit breaker, which can solve the problem that the reliability of the operating mechanism is influenced by the impact of the increased transmission direction on the operating mechanism caused by the fact that the operating mechanism is not well fixed by the connecting structure in the prior art.
The purpose of the invention is realized by the following technical scheme:
a connecting structure of a high-voltage circuit breaker operating mechanism comprises a box body, a circuit breaker transmission case and a horizontal plate; the breaker transmission case is arranged in the case body; the horizontal plate is arranged below the transmission case of the circuit breaker; the box body is provided with a side wall, one side surface of the operating mechanism is connected with the side wall, and the top of the operating mechanism is connected with the horizontal plate; the horizontal plate is perpendicular to the side wall.
Furthermore, the connecting structure of the high-voltage circuit breaker operating mechanism further comprises a supporting rod, one end of the supporting rod is connected with the circuit breaker transmission case, and the other end of the supporting rod is connected with the operating mechanism.
Furthermore, the connecting structure of the high-voltage circuit breaker operating mechanism also comprises a transmission mechanism, wherein the transmission mechanism comprises a pull rod, an operating mechanism output crank arm and a transmission box crank arm; the output crank arm of the operating mechanism is rotatably connected with the operating mechanism; the transmission case crank arm is rotatably connected with the circuit breaker transmission case; one end of the pull rod is rotatably connected with the output crank arm of the operating mechanism, and the other end of the pull rod is rotatably connected with the crank arm of the transmission case.
Furthermore, the transmission mechanism also comprises a pressure plate and a positioning pin; the pressing plate is arranged on the side surface of the transmission case of the circuit breaker; the transmission case connecting lever is provided with a first positioning hole, the pressing plate is provided with a second positioning hole 96, and when the transmission case connecting lever needs to be locked, the positioning pin penetrates through the first positioning hole and the second positioning hole, so that the transmission case connecting lever cannot rotate.
Furthermore, the rear packaging plate of the box body is of a door type structure.
Furthermore, the operating mechanism is fixed in a vertical hanging mode.
Furthermore, the top of the operating mechanism is connected with the horizontal plate through a bolt.
Furthermore, one side surface of the operating mechanism is connected with the side wall through a bolt.
Furthermore, one end of the supporting rod is connected with the transmission box of the circuit breaker through a bolt, and the other end of the supporting rod is connected with the operating mechanism through a bolt.
Further, the rotatable connection is a mode that a shaft pin is matched with the mounting hole.
The connecting structure of the high-voltage circuit breaker operating mechanism can effectively improve the connection rigidity of the operating mechanism, inhibit the swing of the operating mechanism during action, relieve the impact of the transmission direction on the operating mechanism and improve the reliability of the operating mechanism. The invention has the advantages of high reliability, simple structure, long mechanical life and the like, and can ensure better long-term operation of the high-voltage circuit breaker.
Drawings
FIG. 1 is a schematic view showing the internal structure of the connection structure of the present invention;
FIG. 2 is a schematic view of the transmission mechanism of the present invention;
FIG. 3 is a schematic structural view of a positioning hole of a positioning pin according to the present invention.
The reference numerals are explained below:
1: bolt, 2: a box body, 3: circuit breaker, 4: support rod, 5: an operating mechanism, 6: horizontal plate, 7: side wall, 8: circuit breaker transmission case, 9: drive mechanism, 91: pull rod, 92: output crank arm of operating mechanism, 93: a pressing plate, 94: transmission case connecting lever, 95: first positioning hole, 96: second positioning hole, 97: and a positioning pin.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The connection structure of the high-voltage circuit breaker operating mechanism comprises a box body 2, a circuit breaker transmission case 8, a support rod 4 and a horizontal plate 6, as shown in figure 1. The breaker transmission case 8 is installed in the case 2. The horizontal plate 6 is mounted below the breaker drive housing 8. The box body 2 is provided with a side wall 7, the operating mechanism 5 is arranged in the box body 2, one side surface of the operating mechanism 5 is connected with the side wall 7, and the top part of the operating mechanism 5 is connected with the horizontal plate 6. One end of the supporting rod 4 is connected with the breaker transmission case 2, and the other end is connected with the operating mechanism 5. The horizontal plate 6 is perpendicular to the side wall 7.
Further, the operating mechanism 5 is fixed in a vertical hanging mode, and 4M 20 bolts 1 are screwed into M20 screw holes in the top of the operating mechanism 5 through mounting holes of the horizontal plate 6 for mounting and fastening. When the operating mechanism 5 is hung and fixed, in order to avoid the influence of lateral force during action, 4M 20 bolts 1 are used on the side surface, and are screwed into M20 screw holes on one side surface of the operating mechanism 5 through mounting holes of the side wall 7 for mounting and fastening. As shown in FIG. 1, the fixing mode can effectively improve the structural rigidity and inhibit the swing of the operating mechanism during the action. The number of the bolts can be increased or reduced according to actual conditions, and should not be taken as a limitation to the invention.
The function of the support rod 4 is to strengthen the connection. 4M 10 bolts pass through the mounting hole on the bracing piece, screw in the M10 silk hole on the circuit breaker transmission case and fix. After 4M 10 bolts are removed, the connection between the supporting rod and the transmission case can be removed, and the purpose of disassembling can be conveniently and quickly achieved by using the quick wrench.
Further, the connection structure of the high-voltage circuit breaker operating mechanism of the present invention further includes a transmission mechanism 9, as shown in fig. 2, the transmission mechanism 9 includes a pull rod 91, an operating mechanism output crank arm 92 and a transmission case crank arm 94. The operating mechanism output crank arm 92 is rotatably connected with the operating mechanism 5, the transmission case crank arm 94 is rotatably connected with the circuit breaker transmission case 2, one end of the pull rod 91 is rotatably connected with the operating mechanism output crank arm 92, and the other end is rotatably connected with the transmission case crank arm 94. The output crank arm 92 of the operating mechanism drives the crank arm 94 of the transmission case through the pull rod 91 to drive the circuit breaker to perform opening and closing actions. Mounting holes are formed in the pull rod 91 and the crank arm 92/94, the pin shaft penetrates through the mounting holes and then is fixed, and then the pin shaft blocking piece is fixed through two M8 bolts. After the two M8 bolts are disassembled, the pin shaft can be disassembled, the connection between the output crank arm of the operating mechanism and the crank arm of the transmission case is released, and the purpose of disassembling can be conveniently and quickly achieved by using the quick wrench.
Further, the transmission mechanism 9 further comprises a pressing plate 93 and a positioning pin 97, wherein the pressing plate 93 is installed on the side surface of the transmission case 2 of the circuit breaker. The transmission case connecting lever 94 is provided with a first positioning hole 95, the pressing plate 93 is provided with a second positioning hole 96, when the operating mechanism needs to be replaced, the high-voltage circuit breaker is in a closing state, the positioning pin 97 penetrates through the first positioning hole 95 and the second positioning hole 96, and the transmission case connecting lever 94 is locked, so that the transmission case connecting lever 94 cannot rotate, and the circuit breaker is kept in the closing state all the time. The purpose of locking the transmission case crank arm 94 to keep the circuit breaker in a closed state at all times is to enable the operating mechanism to be replaced without power interruption.
Furthermore, in order to more conveniently take out the operating mechanism from the box body and save the work of dismounting and mounting the rear packaging plate of the whole box body, the rear packaging plate of the box body can be designed into a door type structure. After the improved scheme uses the door type structure, the door can be easily opened by rotating the padlock, and enough space is reserved for replacing the operating mechanism.
The action principle of the invention is as follows: when the operating mechanism pushes the high-voltage circuit breaker to perform switching-on and switching-off actions, impact force is generated on the operating mechanism in the transmission direction and the direction perpendicular to the transmission direction. When the operating mechanism is fixed on the horizontal plate 6, the other surface of the operating mechanism is fixed with the side wall 7 vertical to the horizontal plate 6, so that the impact of the two directions on the operating mechanism can be effectively inhibited, and the swing of the operating mechanism is avoided. Meanwhile, the supporting rod 4 is additionally arranged between the operating mechanism and the transmission side face of the bracket, so that the impact of the transmission direction on the mechanism can be further absorbed, and the reliability of the structure is improved.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. A connecting structure of a high-voltage circuit breaker operating mechanism is characterized by comprising a box body, a circuit breaker transmission case and a horizontal plate; the breaker transmission case is arranged in the case body; the horizontal plate is arranged below the transmission case of the circuit breaker; the box body is provided with a side wall, one side surface of the operating mechanism is connected with the side wall, and the top of the operating mechanism is connected with the horizontal plate; the horizontal plate is perpendicular to the side wall.
2. The structure of claim 1, further comprising a support rod, wherein one end of the support rod is connected to the transmission case of the circuit breaker, and the other end of the support rod is connected to the operating mechanism.
3. The structure of claim 1, further comprising a transmission mechanism, wherein the transmission mechanism comprises a pull rod, an actuator output crank arm and a transmission case crank arm; the output crank arm of the operating mechanism is rotatably connected with the operating mechanism; the transmission case crank arm is rotatably connected with the circuit breaker transmission case; one end of the pull rod is rotatably connected with the output crank arm of the operating mechanism, and the other end of the pull rod is rotatably connected with the crank arm of the transmission case.
4. The high voltage circuit breaker actuator connection of claim 3 wherein the actuator further comprises a pressure plate and a locating pin; the pressing plate is arranged on the side surface of the transmission case of the circuit breaker; the transmission case connecting lever is provided with a first positioning hole, the pressing plate is provided with a second positioning hole 96, and when the transmission case connecting lever needs to be locked, the positioning pin penetrates through the first positioning hole and the second positioning hole, so that the transmission case connecting lever cannot rotate.
5. The structure of claim 1, wherein the rear enclosure panel of the housing is of a door-type configuration.
6. The high voltage circuit breaker actuator connection of claim 1 wherein the actuator is fixed in a vertical mount suspension style.
7. The high voltage circuit breaker actuator connection of claim 1 wherein the top of the actuator is bolted to the horizontal plate.
8. The structure of claim 1, wherein the actuator is bolted to the sidewall at one side of the actuator.
9. The structure of claim 2, wherein the support rod is connected to the breaker housing at one end and to the actuator at the other end by a bolt.
10. The structure of claim 3, wherein the rotatable connection is a pin and a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401545.3A CN113270288A (en) | 2021-04-14 | 2021-04-14 | Connecting structure of high-voltage circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401545.3A CN113270288A (en) | 2021-04-14 | 2021-04-14 | Connecting structure of high-voltage circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113270288A true CN113270288A (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110401545.3A Pending CN113270288A (en) | 2021-04-14 | 2021-04-14 | Connecting structure of high-voltage circuit breaker operating mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204332858U (en) * | 2014-12-17 | 2015-05-13 | 江苏精科智能电气股份有限公司 | A kind of circuit breaker handstand hung type spring operating mechanism |
| CN205657008U (en) * | 2016-05-27 | 2016-10-19 | 宁波耐森电气科技有限公司 | Semi -enclosed circuit breaker is adorned to side |
| CN208045401U (en) * | 2018-04-27 | 2018-11-02 | 浙江博为电气有限公司 | A kind of Novel inflating cabinet manual-operating mechanism |
| CN209981092U (en) * | 2019-07-18 | 2020-01-21 | 沈阳高压成套开关股份有限公司 | Two-station operating mechanism of GIS gas switch cabinet |
| CN112382968A (en) * | 2020-10-10 | 2021-02-19 | 广西电网有限责任公司电力科学研究院 | Circuit breaker mechanism does not have power failure and changes device |
-
2021
- 2021-04-14 CN CN202110401545.3A patent/CN113270288A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204332858U (en) * | 2014-12-17 | 2015-05-13 | 江苏精科智能电气股份有限公司 | A kind of circuit breaker handstand hung type spring operating mechanism |
| CN205657008U (en) * | 2016-05-27 | 2016-10-19 | 宁波耐森电气科技有限公司 | Semi -enclosed circuit breaker is adorned to side |
| CN208045401U (en) * | 2018-04-27 | 2018-11-02 | 浙江博为电气有限公司 | A kind of Novel inflating cabinet manual-operating mechanism |
| CN209981092U (en) * | 2019-07-18 | 2020-01-21 | 沈阳高压成套开关股份有限公司 | Two-station operating mechanism of GIS gas switch cabinet |
| CN112382968A (en) * | 2020-10-10 | 2021-02-19 | 广西电网有限责任公司电力科学研究院 | Circuit breaker mechanism does not have power failure and changes device |
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Application publication date: 20210817 |
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| RJ01 | Rejection of invention patent application after publication |