CN220367869U - Electric operating mechanism of circuit breaker - Google Patents
Electric operating mechanism of circuit breaker Download PDFInfo
- Publication number
- CN220367869U CN220367869U CN202322107002.8U CN202322107002U CN220367869U CN 220367869 U CN220367869 U CN 220367869U CN 202322107002 U CN202322107002 U CN 202322107002U CN 220367869 U CN220367869 U CN 220367869U
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- Prior art keywords
- circuit breaker
- limiting
- shaft
- rotating shaft
- plug
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- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000013011 mating Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 230000014509 gene expression Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides an electric operating mechanism of a circuit breaker, which comprises a bracket, a driving motor, a transmission gear assembly, a circuit breaker operating shaft and a limiting bolt, wherein the circuit breaker operating shaft comprises an outer rotating shaft and an inner rotating shaft, the outer rotating shaft sequentially comprises a first limiting part, a second limiting part and a third limiting part, the inner rotating shaft sequentially comprises a connecting end, a first flange part, a second flange part and an inserting end, a spring is sleeved on the inner rotating shaft between the first flange part and the second limiting part, a limiting channel is arranged on one side of the first flange part close to the connecting end, and limiting ports communicated with the limiting channel are formed in the outer rotating shafts on two sides of the limiting channel; when the driving motor fails, the inner rotating shaft and the outer rotating shaft can be separated, the inner rotating shaft is independently rotated to drive the breaker shaft to rotate, the resistance of the driving motor and the transmission gear assembly is eliminated, the operation is easy and labor-saving, the rapid breaking in emergency is convenient, and the safety and the reliability of the breaker are improved.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an electric operating mechanism of a circuit breaker.
Background
The circuit breaker is a switching device capable of switching on, carrying and off a current under normal circuit conditions and switching on, carrying and off a current under abnormal circuit conditions within a prescribed time; the circuit breaker is provided with a circuit breaker operating mechanism which is connected with the circuit breaker operating mechanism body when being installed.
The utility model provides a chinese patent of publication No. CN218826900U before this applicant discloses an operating mechanism of circuit breaker, including the support, set up driving motor on the support, the driving gear who is connected with driving motor, the drive gear subassembly, circuit breaker operating shaft and set up the driven gear on circuit breaker operating shaft, replace manual operation circuit breaker axle through driving motor, electric operation action is steady reliable, the precision is high, but adopt this structure if driving motor trouble, manual operation circuit breaker operating shaft rotates just needs to overcome the resistance of each gear train and driving motor, required turning force is great, inconvenient operation, unable in time break, influence the security of circuit breaker.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings of the prior art and provides an electric operating mechanism of a circuit breaker.
The technical scheme adopted by the utility model is as follows: the circuit breaker comprises a circuit breaker body and a circuit breaker shaft, wherein the circuit breaker comprises a bracket, a driving motor, a transmission gear assembly and a circuit breaker operation shaft, wherein the driving motor, the transmission gear assembly and the circuit breaker operation shaft are arranged on the bracket, the circuit breaker operation shaft comprises an outer rotating shaft and an inner rotating shaft arranged inside the outer rotating shaft, the outer rotating shaft comprises a first limiting part, a second limiting part and a third limiting part in sequence, the inner rotating shaft comprises a connecting end connected with an operation handle, a first flange part matched with the first limiting part, a second flange part matched with the third limiting part and an inserting end inserted with the circuit breaker shaft, a spring is sleeved on an inner rotating shaft between the first flange part and the second limiting part, one side of the first flange part, which is close to the connecting end, is provided with a limiting channel, and limiting ports communicated with the limiting channel are formed in the outer rotating shafts on two sides of the limiting channel;
the circuit breaker is characterized by further comprising a limiting plug pin, wherein when the limiting plug pin is inserted into the limiting opening and the limiting channel, the first flange part is matched with the first limiting part, the second flange part is matched with the third limiting part, and the driving motor drives the outer rotating shaft through the transmission gear assembly, and the outer rotating shaft and the inner rotating shaft synchronously rotate, so that the circuit breaker shaft is driven to rotate; when the limiting plug pin is pulled out of the limiting opening and the limiting channel, the spring enables the first flange part to be separated from the first limiting part and the second flange part to be separated from the third limiting part, the inner rotating shaft is separated from the outer rotating shaft, and the inner rotating shaft is rotated to enable the circuit breaker shaft to rotate.
And a wear-resistant gasket is arranged between the spring and the second limiting part.
The outer rotating shaft is formed by involution of two half shafts.
The two sides of the limiting bolt are provided with slide ways, and two side walls of the limiting opening are provided with limiting columns matched with the slide ways.
The limiting bolt comprises an operating part extending out of the limiting opening.
The plug-in end is provided with a plug-in groove, one end of the breaker shaft facing the bracket is provided with a plug-in block matched with the plug-in groove, and the plug-in block is plugged in the plug-in groove so that the inner rotating shaft and the breaker shaft synchronously rotate.
The matching length of the plug block and the plug groove is larger than that of the first flange part and the first limiting part, and the matching length of the plug block and the plug groove is larger than that of the second flange part and the third limiting part.
The transmission gear assembly comprises a driving gear connected with the driving motor, a transmission shaft arranged on the bracket, a first transmission gear and a second transmission gear arranged on the transmission shaft, and a driven gear arranged on the outer rotating shaft, wherein the driving gear is meshed with the first transmission gear, the second transmission gear is meshed with the driven gear, and the transmission shaft, the first transmission gear and the second transmission gear synchronously rotate.
The beneficial effects of the utility model are as follows: when the driving motor fails, the inner rotating shaft and the outer rotating shaft can be separated, the inner rotating shaft is independently rotated to drive the breaker shaft to rotate, the resistance of the driving motor and the transmission gear assembly is eliminated, the operation is easy and labor-saving, the rapid breaking in emergency is convenient, and the safety and the reliability of the breaker are improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a schematic illustration of the present utility model;
fig. 2 is an exploded view of the operating shaft of the circuit breaker of the present utility model;
FIG. 3 is a schematic view of a limit plug according to the present utility model;
fig. 4 is a cross-sectional view of the operating shaft of the circuit breaker of the present utility model (in a motor-driven state);
fig. 5 is a second cross-sectional view of the operating shaft of the circuit breaker (in a motor-driven state) according to the present utility model;
fig. 6 is a cross-sectional view of the operating shaft of the circuit breaker of the present utility model (in a state of being separated from the motor);
fig. 7 is a cross-sectional view of the operating shaft of the circuit breaker of the present utility model (in a state of being separated from the motor).
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
In the description of the present application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In the description of the present application, it should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name and different parameters, and it is noted that the "first" and "second" are merely used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described in detail herein.
As shown in fig. 1 to 7, an embodiment of the present utility model is provided:
the utility model provides an electric operating mechanism of circuit breaker, the circuit breaker is including circuit breaker body and circuit breaker axle, and the circuit breaker axle is the structure that opens and shuts through rotation control circuit breaker, operating mechanism is including support 1, driving motor 2, drive gear subassembly 3 and circuit breaker operating shaft 4 that set up on support 1, and driving motor 2 makes the circuit breaker axle rotate through drive gear subassembly 3 and realizes opening and shutting of circuit breaker, with electric operating mechanism independent modularization, unifies on the support with the circuit breaker body dismouting with relevant spare part integration, has simplified the assembly process, is convenient for driving motor's maintenance and maintenance.
The breaker operation shaft 4 comprises an outer rotation shaft 41 and an inner rotation shaft 42 arranged in the outer rotation shaft 41, the outer rotation shaft 41 sequentially comprises a first limit part 411, a second limit part 412 and a third limit part 413, the inner rotation shaft 42 sequentially comprises a connecting end 421 connected with an operation handle, a first flange part 422 matched with the first limit part 411, a second flange part 423 matched with the third limit part 413 and an inserting end 424 inserted with the breaker shaft, wherein each limit part and each flange part can adopt a polygon matched with each other, such as square, hexagon, cross and the like, a spring 5 is sleeved on the inner rotation shaft 42 between the first flange part 422 and the second limit part 412, the spring 5 adopts a cylindrical spring, one side of the first flange part 422 close to the connecting end 421 is provided with a limit channel 6, and the outer rotation shaft 41 on two sides of the limit channel 6 is provided with limit ports 7 communicated with the limit channel 6; the circuit breaker is characterized by further comprising a limiting plug 8, wherein when the limiting plug 8 is inserted into the limiting port 7 and the limiting channel 6, the first flange part 422 is matched with the first limiting part 411, the second flange part 423 is matched with the third limiting part 413, the driving motor 2 drives the outer rotating shaft 41 through the transmission gear assembly 3, and the outer rotating shaft 41 and the inner rotating shaft 42 synchronously rotate, so that the circuit breaker shaft is driven to rotate; when the limiting plug 8 is pulled out of the limiting opening 7 and the limiting channel 6, the spring 5 enables the first flange part 422 to be separated from the first limiting part 411 and the second flange part 423 to be separated from the third limiting part 413, the inner rotating shaft 42 is separated from the outer rotating shaft 41, the inner rotating shaft 42 is rotated to enable the circuit breaker shaft to rotate, under normal conditions, the outer rotating shaft 41 and the inner rotating shaft 42 are enabled to synchronously rotate through the limiting plug 8, when the driving motor 2 fails, the limiting plug 8 can be pulled out to enable the inner rotating shaft 42 to be separated from the outer rotating shaft 41, and then the inner rotating shaft 42 is independently rotated to drive the circuit breaker shaft to rotate, so that the resistance of the driving motor 2 and the transmission gear assembly 3 is eliminated, the operation is easy and labor-saving, the quick breaking under emergency conditions is facilitated, and the safety and reliability of the circuit breaker are improved.
The wear-resistant gasket 9 is arranged between the spring 5 and the second limiting part 412, so that friction damage between the spring 5 and the second limiting part 412 can be reduced when the operation inner rotating shaft 42 rotates alone, and the service life of the mechanism is prolonged.
The outer rotating shaft 41 is formed by two half shafts in a butt joint mode, and during assembly, all parts inside the outer rotating shaft 41 can be assembled firstly, and then the two half shafts are connected in a butt joint mode to form the outer rotating shaft 41, so that machining and assembly are facilitated.
The both sides of spacing bolt 8 are provided with slide 81, the both sides wall of spacing mouth 7 is provided with the spacing post 71 with slide 81 adaptation, so avoid spacing bolt 8 to pull out the back unexpected loss, hoist mechanism's practicality.
The limiting plug 8 comprises an operating part 82 extending out of the limiting opening 7, the limiting plug 8 can be L-shaped, T-shaped and the like, and the operating part 82 is convenient for a user to operate the limiting plug 8 and improves the operability of the mechanism.
The plug-in end 424 is provided with a plug-in slot, one end of the breaker shaft facing the bracket 1 is provided with a plug-in block adapted to the plug-in slot, and the plug-in block and the plug-in slot are plugged in such a way that the inner rotating shaft 42 and the breaker shaft synchronously rotate, wherein the structure of the plug-in block and the plug-in slot can refer to the China patent with publication number CN218826900U filed by the applicant of the present application, and an operating mechanism of the breaker is disclosed.
The mating length of the plug and the plug slot is greater than the mating length of the first flange portion 422 and the first limiting portion 411, and the mating length of the plug and the plug slot is greater than the mating length of the second flange portion 423 and the third limiting portion 413, so that the plug and the plug slot are prevented from being separated when the first flange portion 422 is separated from the first limiting portion 411 and the second flange portion 423 is separated from the third limiting portion 413, and the rotation inner rotating shaft 42 cannot operate the breaker shaft.
The transmission gear assembly 3 comprises a driving gear connected with the driving motor 2, a transmission shaft arranged on the bracket 1, a first transmission gear and a second transmission gear arranged on the transmission shaft, and a driven gear arranged on the outer rotating shaft 41, wherein the driving gear is meshed with the first transmission gear, the second transmission gear is meshed with the driven gear, and the transmission shaft, the first transmission gear and the second transmission gear synchronously rotate.
The connecting end 421 is provided with a third limiting portion 4211 on a side close to the outer rotating shaft 41, and the third limiting portion 4211 is just propped against the outer rotating shaft 41 when the inner rotating shaft 42 is pressed to reset and restore to be linked with the outer rotating shaft 41, so that the operability of the mechanism is improved.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (8)
1. The utility model provides an electric operating mechanism of circuit breaker, the circuit breaker is including circuit breaker body and circuit breaker axle, operating mechanism is including support (1), driving motor (2) that sets up on support (1), drive gear subassembly (3) and circuit breaker operating shaft (4), a serial communication port, circuit breaker operating shaft (4) are including outer pivot (41) and internal rotation axle (42) that set up in outer pivot (41) inside, including first spacing portion (411), second spacing portion (412) and third spacing portion (413) in proper order in outer pivot (41), internal rotation axle (42) are including connecting end (421) that are connected with operating handle, first flange portion (422) that suits with first spacing portion (411), second flange portion (423) that suits with third spacing portion (413) and plug-in connection end (424) that peg graft with circuit breaker axle, be equipped with spring (5) on inner rotation axle (42) between first flange portion (422) and second spacing portion (412), first flange portion (422) are close to limit channel (6) both sides are provided with spacing passageway (6), and limit channel (6) are connected with both sides (6);
the circuit breaker is characterized by further comprising a limiting plug pin (8), wherein when the limiting plug pin (8) is inserted into the limiting port (7) and the limiting channel (6), the first flange part (422) is matched with the first limiting part (411) and the second flange part (423) is matched with the third limiting part (413), the driving motor (2) drives the outer rotating shaft (41) through the transmission gear assembly (3), and the outer rotating shaft (41) and the inner rotating shaft (42) synchronously rotate, so that the circuit breaker shaft is driven to rotate; when the limiting plug pin (8) is pulled out of the limiting opening (7) and the limiting channel (6), the spring (5) enables the first flange part (422) to be separated from the first limiting part (411) and the second flange part (423) to be separated from the third limiting part (413), the inner rotating shaft (42) is separated from the outer rotating shaft (41), and the inner rotating shaft (42) is rotated to enable the circuit breaker shaft to rotate.
2. An electrically operated mechanism of a circuit breaker according to claim 1, characterized in that a wear washer (9) is arranged between the spring (5) and the second limit part (412).
3. An electric operating mechanism of a circuit breaker according to claim 1, characterized in that said outer rotary shaft (41) is formed by two half-shafts in apposition.
4. The electric operating mechanism of the circuit breaker according to claim 1, characterized in that two sides of the limit plug pin (8) are provided with slide ways (81), and two side walls of the limit opening (7) are provided with limit posts (71) which are matched with the slide ways (81).
5. An electrically operated mechanism of a circuit breaker according to claim 1, characterized in that the limit plug (8) comprises an operating portion (82) extending out of the limit opening (7).
6. The electric operating mechanism of a circuit breaker according to claim 1, characterized in that the plug end (424) is provided with a plug slot, the end of the circuit breaker shaft facing the bracket (1) is provided with a plug block adapted to the plug slot, and the plug block is plugged into the plug slot so that the inner shaft (42) rotates synchronously with the circuit breaker shaft.
7. The electric operating mechanism of a circuit breaker according to claim 6, wherein the mating length of the plug and the socket is greater than the mating length of the first flange portion (422) and the first limiting portion (411), and the mating length of the plug and the socket is greater than the mating length of the second flange portion (423) and the third limiting portion (413).
8. The electric operating mechanism of a circuit breaker according to claim 1, wherein the transmission gear assembly (3) comprises a driving gear connected with the driving motor (2), a transmission shaft arranged on the bracket (1), a first transmission gear and a second transmission gear arranged on the transmission shaft, and a driven gear arranged on the outer rotating shaft (41), the driving gear is meshed with the first transmission gear, the second transmission gear is meshed with the driven gear, and the transmission shaft, the first transmission gear and the second transmission gear synchronously rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107002.8U CN220367869U (en) | 2023-08-05 | 2023-08-05 | Electric operating mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322107002.8U CN220367869U (en) | 2023-08-05 | 2023-08-05 | Electric operating mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220367869U true CN220367869U (en) | 2024-01-19 |
Family
ID=89513765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322107002.8U Active CN220367869U (en) | 2023-08-05 | 2023-08-05 | Electric operating mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220367869U (en) |
-
2023
- 2023-08-05 CN CN202322107002.8U patent/CN220367869U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |