CN216902598U - Three-phase mechanical linkage isolating switch's divide-shut brake monitoring system - Google Patents
Three-phase mechanical linkage isolating switch's divide-shut brake monitoring system Download PDFInfo
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- CN216902598U CN216902598U CN202220308522.8U CN202220308522U CN216902598U CN 216902598 U CN216902598 U CN 216902598U CN 202220308522 U CN202220308522 U CN 202220308522U CN 216902598 U CN216902598 U CN 216902598U
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Abstract
The utility model discloses a switching-on and switching-off monitoring system of a three-phase mechanical linkage isolating switch, which comprises an isolating switch body and an isolating switch electric mechanism, wherein the isolating switch body comprises an A isolating switch, a B isolating switch and a C isolating switch, the isolating switch electric mechanism is connected with the isolating switch body, and the switching-on and switching-off monitoring system also comprises three switching-on and switching-off signal monitoring devices, the three isolating switching-on and switching-off signal monitoring devices are respectively connected with the A isolating switch, the B isolating switch and the C isolating switch through output shafts, and the switching-on and switching-off signal monitoring devices are used for monitoring and judging the switching-on and switching-off positions of the isolating switch body. The utility model has the advantages of simple structure, good non-homology, high accuracy, high reliability and the like.
Description
Technical Field
The utility model mainly relates to the technical field of isolating switches, in particular to a switching-on and switching-off monitoring system of a three-phase mechanical linkage isolating switch.
Background
The gas insulated metal enclosed switchgear (called as a combined electrical apparatus for short) is widely applied in China as an important apparatus in an electric power system, along with the development and technical progress of a power grid, the intelligent requirement on the combined electrical apparatus is higher and higher, one-key sequential control is used as an intelligent important module, the accuracy of the opening and closing signals of a disconnecting switch module body of the combined electrical apparatus is higher, and if misoperation is caused due to inaccurate opening and closing positions, serious accidents can be caused. In the existing three-phase mechanical linkage isolating switch, an isolating switch electric mechanism provides an operation function required by an isolating switch opening and closing and provides different opening and closing indication signals for a one-key sequence control system, one signal is an auxiliary switch node signal, and the other signal is a travel switch node signal. Therefore, the prior art cannot eliminate the situations of incomplete switching-on and switching-off or phase-loss switching-on and the like caused by mechanical faults of the isolating switch body, and cannot provide more accurate switching-on and switching-off information for a one-key sequential control system.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides the opening and closing monitoring system of the three-phase mechanical linkage isolating switch, which has the advantages of simple structure, good non-homology, high accuracy and high reliability.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a three-phase machinery linkage isolator's divide-shut brake monitoring system, includes isolator body and isolator electric mechanism, the isolator body includes A phase switch, B phase switch and C phase switch, isolator electric mechanism links to each other with the isolator body, still includes three divide-shut brake signal monitoring devices, and is three divide-shut brake signal monitoring devices links to each other with A phase switch, B phase switch and C phase switch respectively through the output shaft, divide-shut brake signal monitoring devices is used for monitoring and judges isolator body divide-shut brake position.
As a further improvement of the utility model: the A phase isolating switch, the B phase isolating switch and the C phase isolating switch are connected through a connecting rod mechanism to realize mechanical linkage.
As a further improvement of the utility model: the opening and closing signal monitoring device comprises a first rack, a second rack, a gear structure and a first travel switch, wherein the first rack and the second rack are meshed with the gear structure, the gear structure is connected with an output shaft of the isolating switch body, and the output shaft rotates to drive the gear structure to rotate so as to drive the first rack or the second rack to be connected with or disconnected from the travel switch.
As a further improvement of the utility model: the opening and closing signal monitoring device further comprises a protective box, and the first rack, the second rack, the gear structure and the first travel switch are arranged in the protective box.
As a further improvement of the utility model: the on-off signal monitoring device comprises a control panel and a microswitch, the control panel is connected with an output shaft of the isolating switch body, and the output shaft drives the control panel to rotate so that the microswitch is pushed away or separated by the control panel.
As a further improvement of the utility model: the control panel is the cam structure.
As a further improvement of the utility model: the opening and closing signal monitoring device further comprises a protective cover, and the control panel and the microswitch are arranged in the protective cover.
As a further improvement of the utility model: the three travel switch nodes of the on-off signal monitoring devices are connected in series, and the travel switch nodes of the three on-off signal monitoring devices are connected in parallel with the second travel switch node of the isolating switch electric mechanism.
As a further improvement of the utility model: the micro-switch nodes of the three opening and closing signal monitoring devices are connected in series, and the micro-switch nodes of the three opening and closing signal monitoring devices are connected in parallel with the second stroke switch node of the isolating switch electric mechanism.
As a further improvement of the utility model: the isolating switch electric mechanism is arranged on the B isolating switch.
Compared with the prior art, the utility model has the advantages that:
1. according to the opening and closing monitoring system of the three-phase mechanical linkage isolating switch, each single isolating switch is provided with the opening and closing signal monitoring device, the opening and closing position of the isolating switch body is monitored by using the opening and closing signal monitoring device, and when the output signals of the isolating switch electric mechanism and the opening and closing signal monitoring device are consistent, an accurate opening and closing indicating signal is sent to the one-key sequential control system. The utility model can effectively eliminate the situations of incomplete switching-on and switching-off, phase failure switching-on and the like caused by mechanical faults of the isolating switch body, so that the switching-on and switching-off signals are more accurate.
2. According to the opening and closing monitoring system of the three-phase mechanical linkage isolating switch, the travel switch nodes of the three opening and closing signal monitoring devices are connected in series, and the travel switch nodes of the three opening and closing signal monitoring devices are connected in parallel with the travel switch node of the isolating switch electric mechanism, so that the travel switch nodes of the three opening and closing signal monitoring devices can be conducted only when the three isolating switches rotate in place, and an opening or closing in-place signal can be sent out, and the inaccuracy of the opening and closing signal caused by single-phase mechanical failure in the transmission process can be effectively eliminated; the three-phase series signals and the travel switch node signals of the isolating switch electric mechanism form double confirmation signals for isolating switch opening and closing judgment, and the condition that the opening and closing signals are in place is judged from the input shaft to the two ends of the output shaft of the isolating switch simultaneously, so that mechanical faults can be effectively eliminated, the reliability of product operation is greatly improved, and the service life of products can be effectively prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention in one embodiment
Fig. 3 is a schematic structural diagram of a single-phase isolating switch according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a switching-on/off signal monitoring device according to a first embodiment of the present invention.
Fig. 5 is a signal loop diagram of the present invention.
Fig. 6 is a schematic structural diagram of a second embodiment of the opening/closing signal monitoring device according to the present invention.
Illustration of the drawings:
1. an isolation switch body; 11. a, an isolated switch; 12. b, an isolated switch; 13. c, an isolated switch; 2. an isolator motor mechanism; 3. a switching-on/off signal monitoring device; 31. a first rack; 32. a second rack; 33. a gear structure; 34. A first travel switch; 35. a protective box; 36. a control panel; 37. a microswitch; 38. a shield.
Detailed Description
The utility model will be described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1 to 5, the embodiment discloses a switching-on/off monitoring system of a three-phase mechanical linkage isolating switch, which comprises an isolating switch body 1 and an isolating switch electric mechanism 2, wherein the isolating switch body 1 comprises an a isolating switch 11, a B isolating switch 12 and a C isolating switch 13, the isolating switch electric mechanism 2 is connected with the isolating switch body 1, and the switching-on/off monitoring system further comprises three switching-on/off signal monitoring devices 3, the three switching-on/off signal monitoring devices 3 are respectively connected with the a isolating switch 11, the B isolating switch 12 and the C isolating switch 13 through output shafts, and the switching-on/off signal monitoring devices 3 are used for monitoring and judging the switching-on/off position of the isolating switch body 1.
In the opening and closing monitoring system of the three-phase mechanical linkage isolating switch, each single-phase isolating switch is provided with the opening and closing signal monitoring device 3, the opening and closing position of the isolating switch body 1 is monitored by using the opening and closing signal monitoring device 3, and when the output signals of the isolating switch electric mechanism 2 and the opening and closing signal monitoring device 3 are consistent, an accurate opening and closing indicating signal is sent to the one-key sequential control system. The utility model can effectively eliminate the situations of incomplete switching-on and switching-off, phase failure switching-on and the like caused by mechanical faults of the isolating switch body 1, so that the switching-on and switching-off signals are more accurate.
In the embodiment, an A phase isolating switch 11, a B phase isolating switch 12 and a C phase isolating switch 13 are connected through a link mechanism to realize mechanical linkage; further, in a preferred embodiment, the link mechanism is a connecting rod crank arm, and the mechanical linkage of the three-phase isolation switch can be realized through the connecting rod crank arm. The isolation switch electric mechanism 2 can be provided with only one, such as being arranged on a B-phase isolation switch 12.
In this embodiment, the opening and closing signal monitoring device 3 includes a first rack 31, a second rack 32, a gear structure 33, and a first travel switch 34, where the first rack 31 and the second rack 32 are engaged with the gear structure 33, the gear structure 33 is connected to an output shaft of the disconnecting switch body 1, and the output shaft rotates to drive the gear structure 33 to rotate, so as to drive the first rack 31 or the second rack 32 to be connected to or disconnected from the travel switch. The gear structure 33 pushes the rack along with the rotation of the output shaft, so that the travel switch is driven to be switched on and off, and the switching-on and switching-off positions of the isolating switch can be judged. The adoption gear and rack structure can make divide-shut brake signal monitoring devices 3 not receive output shaft turned angle's restriction.
In this embodiment, divide closing signal monitoring devices 3 still includes protective housing 35, and first rack 31, second rack 32, gear structure 33, first travel switch 34 set up in protective housing 35, and protective housing 35 can effectively play the guard action, can also avoid first travel switch 34 to receive the emergence that external environment disturbed the condition that leads to the monitoring inaccurate.
In this embodiment, the stroke switch nodes of the three switching-on/off signal monitoring devices 3 are connected in series, and the stroke switch nodes of the three switching-on/off signal monitoring devices 3 are connected in parallel with the second stroke switch node of the isolating switch electric mechanism 2. Only when the three phase isolating switches rotate in place, the travel switch nodes of the three opening and closing signal monitoring devices 3 are conducted, and then opening and closing in-place signals can be sent out, so that the inaccuracy of opening and closing signals caused by single-phase mechanical faults in the transmission process can be effectively eliminated; the three-phase series signals and the travel switch node signals of the isolating switch electric mechanism 2 form double confirmation signals for isolating switch opening and closing judgment, and the condition that the opening and closing signals are in place is judged from the input shaft to the two ends of the output shaft of the isolating switch body 1, so that mechanical faults can be effectively eliminated, the reliability of product operation is greatly improved, and the service life of products can be effectively prolonged.
When the three-phase isolating switch is used specifically, the isolating switch electric mechanism 2 drives the phase-B isolating switch 12 to act through the input shaft, the phase-B isolating switch 12 acts through the connecting rod connecting lever to drive the phase-A isolating switch 11 and the phase-C isolating switch 13 to act, so that the output shaft is driven to rotate, the gear structure 33 in the opening and closing signal monitoring device 3 is driven to rotate by the rotation of the output shaft, so that the rack is pushed, so that the travel switches are driven to open and close, and only when the three phase isolating switches all rotate in place, the travel switch nodes of the three opening and closing signal monitoring devices 3 are switched on, so that an opening or closing in-place signal can be sent.
Example two
As shown in fig. 6, the present embodiment is basically the same as the first embodiment, except that the opening/closing signal monitoring device 3 includes a control board 36 and a micro switch 37, the control board 36 is connected to an output shaft of the isolating switch body 1, the output shaft drives the control board 36 to rotate so that the control board 36 pushes the micro switch 37 open or leaves the micro switch 37, and the micro switch 37 is mounted on a mounting plate of the opening/closing signal monitoring device 3 through a fastener, and has a certain adjustment space, so that the opening/closing position can be accurately determined. Further, in the preferred embodiment, the control plate 36 is a cam structure.
In this embodiment, the opening/closing signal monitoring device 3 further includes a protective cover 38, and the control board 36 and the micro switch 37 are disposed in the protective cover 38. The protective cover 38 can protect the micro switch 37 from being interfered by the external environment, which can prevent inaccurate monitoring.
In this embodiment, the micro-switch nodes of the three switching-on/off signal monitoring devices 3 are connected in series, and the micro-switch nodes of the three switching-on/off signal monitoring devices 3 are connected in parallel with the second stroke switch node of the isolating switch electric mechanism 2. Only when the three phase isolating switches rotate in place, the micro-switch nodes of the three opening and closing signal monitoring devices 3 are conducted, and then opening and closing in-place signals can be sent, so that the inaccuracy of opening and closing signals caused by single-phase mechanical faults in the transmission process can be effectively eliminated; the three-phase series signals and the travel switch node signals of the isolating switch electric mechanism 2 form double confirmation signals for isolating switch opening and closing judgment, and the condition that the opening and closing signals are in place is judged from the input shaft to the two ends of the output shaft of the isolating switch body 1, so that mechanical faults can be effectively eliminated, the reliability of product operation is greatly improved, and the service life of products can be effectively prolonged.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may be made by those skilled in the art without departing from the principle of the utility model.
Claims (10)
1. The utility model provides a three-phase machinery linkage isolator's divide-shut brake monitoring system, includes isolator body (1) and isolator electric mechanism (2), isolator body (1) includes A phase isolation switch (11), B phase isolation switch (12) and C phase isolation switch (13), isolator electric mechanism (2) link to each other with isolator body (1), its characterized in that still includes three divide-shut brake signal monitoring devices (3), and is three divide-shut brake signal monitoring devices (3) link to each other with A phase isolation switch (11), B phase isolation switch (12) and C phase isolation switch (13) respectively through the output shaft, divide-shut brake signal monitoring devices (3) are used for monitoring and judge isolator body (1) divide-shut brake position.
2. The opening and closing monitoring system of the three-phase mechanical linkage isolating switch according to claim 1, wherein the A-phase isolating switch (11), the B-phase isolating switch (12) and the C-phase isolating switch (13) are connected through a link mechanism to realize mechanical linkage.
3. The switching-on and switching-off monitoring system of the three-phase mechanical linkage isolating switch according to claim 2, wherein the switching-on and switching-off signal monitoring device (3) comprises a first rack (31), a second rack (32), a gear structure (33) and a first travel switch (34), the first rack (31) and the second rack (32) are meshed with the gear structure (33), the gear structure (33) is connected with an output shaft of the isolating switch body (1), and the output shaft rotates to drive the gear structure (33) to rotate to drive the first rack (31) or the second rack (32) to be connected with or disconnected from the travel switch.
4. The switch-on/off monitoring system of the three-phase mechanical linkage isolating switch according to claim 3, wherein the switch-on/off signal monitoring device (3) further comprises a protective box (35), and the first rack (31), the second rack (32), the gear structure (33) and the first travel switch (34) are arranged in the protective box (35).
5. The switch-on/off monitoring system of the three-phase mechanical linkage isolating switch according to claim 2, wherein the switch-on/off signal monitoring device (3) comprises a control board (36) and a micro switch (37), the control board (36) is connected with an output shaft of the isolating switch body (1), and the output shaft drives the control board (36) to rotate so that the control board (36) pushes the micro switch (37) to be opened or leaves the micro switch (37).
6. The switch-closing monitoring system of the three-phase mechanical linkage isolating switch according to claim 5, characterized in that the control panel (36) is of a cam structure.
7. The switch-on/off monitoring system of the three-phase mechanical linkage isolating switch according to claim 5, characterized in that the switch-on/off signal monitoring device (3) further comprises a protective cover (38), and the control board (36) and the micro switch (37) are arranged in the protective cover (38).
8. The switch-on/switch-off monitoring system of the three-phase mechanical linkage isolating switch according to claim 3, characterized in that the travel switch nodes of the three switch-on/switch-off signal monitoring devices (3) are connected in series, and the travel switch nodes of the three switch-on/switch-off signal monitoring devices (3) are connected in parallel with the second travel switch node of the isolating switch electric mechanism (2).
9. The switch-on/switch-off monitoring system of the three-phase mechanical linkage isolating switch according to claim 5, characterized in that the micro-switch nodes of the three switch-on/switch-off signal monitoring devices (3) are connected in series, and the micro-switch nodes of the three switch-on/switch-off signal monitoring devices (3) are connected in parallel with the second travel switch node of the isolating switch electric mechanism (2).
10. A switch-on/switch-off monitoring system for a three-phase mechanical ganged disconnecting switch according to any one of claims 1 to 9, characterized in that the disconnecting switch electric mechanism (2) is mounted on a B disconnecting switch (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308522.8U CN216902598U (en) | 2022-02-15 | 2022-02-15 | Three-phase mechanical linkage isolating switch's divide-shut brake monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220308522.8U CN216902598U (en) | 2022-02-15 | 2022-02-15 | Three-phase mechanical linkage isolating switch's divide-shut brake monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216902598U true CN216902598U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220308522.8U Active CN216902598U (en) | 2022-02-15 | 2022-02-15 | Three-phase mechanical linkage isolating switch's divide-shut brake monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216902598U (en) |
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- 2022-02-15 CN CN202220308522.8U patent/CN216902598U/en active Active
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