CN219476564U - Indoor vacuum circuit breaker of plateau type suitable for electrified railway - Google Patents
Indoor vacuum circuit breaker of plateau type suitable for electrified railway Download PDFInfo
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- CN219476564U CN219476564U CN202320300558.6U CN202320300558U CN219476564U CN 219476564 U CN219476564 U CN 219476564U CN 202320300558 U CN202320300558 U CN 202320300558U CN 219476564 U CN219476564 U CN 219476564U
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Abstract
The utility model discloses an indoor vacuum circuit breaker of a plateau type suitable for an electrified railway. The main primary element of the existing vacuum circuit breaker is completely sealed in the air chamber, so that the existing vacuum circuit breaker cannot be regularly maintained and has long repair time. The vacuum arc-extinguishing device comprises a frame, a transmission module, an insulation module, a vacuum arc-extinguishing chamber and an insulation pull rod, wherein the transmission module is arranged at the upper part of the frame; the top of the frame is connected with an insulating module, and a transmission module is respectively connected with an insulating pull rod and a vacuum arc-extinguishing chamber. The utility model adopts an air insulation mode to ensure that the circuit breaker meets the insulation requirement of high altitude conditions, is suitable for high altitude areas with the altitude of 4000 meters and below, has the characteristics of reliable operation and convenient maintenance and repair, and solves the problem of difficult maintenance and repair of components of the conventional plateau indoor vacuum circuit breaker.
Description
Technical Field
The utility model belongs to the technical field of traction power supply systems of electrified railways, and particularly relates to an indoor vacuum circuit breaker of a plateau type suitable for electrified railways.
Background
The plateau indoor vacuum circuit breaker of the electrified railway is a single-phase alternating current 50Hz, and the indoor complete distribution device of the electrified railway system with the rated voltage of 27.5 kV; the system is mainly used for power supply and distribution systems of traction substation, switching station, partition station and AT station of electrified railway, and is used for receiving and distributing electric energy. When the altitude reaches an altitude of 3000 meters, the existing vacuum circuit breaker adopts vacuumizing or SF6 gas to realize insulation, and the main primary element is completely sealed in the air chamber.
This structure has the following disadvantages: the components in the air chamber cannot be maintained regularly, the components and parts are failed to cause the whole cabinet body to be repaired by disassembling the air box, the repair time is long, the difficulty is high, and the power supply safety is seriously threatened.
Disclosure of Invention
In order to make up the defects of the prior art, the utility model provides the plateau indoor vacuum circuit breaker suitable for the electrified railway, and solves the problem that the maintenance and repair of components of the existing plateau indoor vacuum circuit breaker are difficult.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
an indoor vacuum circuit breaker of plateau type suitable for electric railway, its characterized in that:
the vacuum arc-extinguishing device comprises a frame, a transmission module, an insulation module, a vacuum arc-extinguishing chamber and an insulation pull rod;
the transmission module is arranged at the upper part of the frame, the top of the frame is connected with the insulation module, and the transmission module is respectively connected with the insulation pull rod and the vacuum arc-extinguishing chamber;
further, the transmission module comprises a main rotating shaft, a brake separating sub-module, a brake closing spring, a motor gear module, a contact pressure spring, a first four-bar mechanism, a second four-bar mechanism, a brake closing electromagnet, a first iron core, a second iron core, a first tripping plate, a second tripping plate, a cam positioning piece, a large gear, a cam, a movable conducting rod, a gear reduction box, an energy storage shaft, an output shaft, a first crank arm, a brake separating electromagnet, a motor, an energy storage spring, a travel switch, a brake separating pawl, a first connecting rod, a brake closing pawl, a second crank arm, a brake separating spring, a second connecting rod and an auxiliary switch;
the main rotating shaft is respectively connected with one end of the brake separating sub-module, one end of the contact pressure spring, one end of the brake separating spring, one end of the first connecting rod, one end of the second connecting rod and one end of the auxiliary switch; the other end of the brake separating sub-module is fixedly connected with the frame; the other end of the brake separating spring is fixedly connected with the frame; the closing spring is arranged on one side of the opening sub-module and is connected with one end of the motor gear module; the other end of the second connecting rod is connected with the other end of the auxiliary switch; the other end of the contact pressure spring is connected with one end of the first four-bar mechanism and one end of the insulating pull rod respectively; the other end of the insulating pull rod is connected with one end of the second four-bar mechanism; the other end of the second four-bar linkage is connected with one end of the movable conducting rod; the other end of the movable conducting rod is connected with the vacuum arc-extinguishing chamber; the other end of the first four-bar linkage is connected with a closing electromagnet; the switching-on electromagnet is arranged outside the gear reduction box; the first iron core is arranged inside the closing electromagnet; the closing electromagnet is arranged opposite to the first tripping plate; the first tripping plate is fixedly connected with one end of the closing pawl and the cam positioning piece respectively; the cam positioning piece is arranged in the middle of the gear reduction box; the cam positioning piece is connected with a cam; the cam is respectively connected with one end of the opening brake and one end of the energy storage shaft; the other end of the energy storage shaft is fixedly connected with one end of the large gear; the large gear is arranged outside the gear reduction box, and the other end of the large gear is connected with one end of the output shaft; one end of the energy storage shaft is connected with one end of the second crank arm, and the other end of the energy storage shaft is connected with the other end of the second crank arm; the other end of the output shaft is connected with one end of the motor; the other end of the motor is connected with the other end of the motor gear module; one end of the first crank arm is connected with the other end of the closing pawl, and the other end of the first crank arm is fixedly connected with the frame; one end of the second release plate is connected with the other end of the opening pawl; the other end of the second release plate is connected with a cam; the brake separating electromagnet is arranged opposite to the second tripping plate; the second iron core is arranged inside the brake separating electromagnet; one end of the energy storage spring is fixedly connected with the bottom of the gear reduction box, and the other end of the energy storage spring is connected with one end of the energy storage shaft; one end of the travel switch is fixedly connected with the gear reduction box, and the other end of the travel switch is connected with the other end of the first connecting rod.
Further, a silicon rubber sleeve is arranged outside the vacuum arc extinguishing chamber;
further, the outer insulation electric gap of the vacuum arc extinguishing chamber is 530mm, and the total length is 618mm.
The utility model has the beneficial effects that:
1) According to the utility model, the air insulation mode is adopted to enable the circuit breaker to meet the insulation requirement of high altitude conditions, so that the single-phase output work can be increased under the condition of unchanged installation volume;
2) The external insulation electric gap of the vacuum arc-extinguishing chamber is 530mm, the total length is 618mm, the size of the gap to the ground is increased, and the circuit breaker is suitable for high altitude areas with the altitude of 4000 meters and below;
3) The silicon rubber sleeve provided by the utility model has the performances of high voltage arc resistance and electric erosion resistance in the actual running process of the circuit breaker, and can effectively prevent breakdown caused by uneven electric field intensity distribution.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a side view of the structure of the present utility model;
FIG. 3 is a schematic view of a portion of a first transmission module according to the present utility model;
FIG. 4 is a schematic view of a portion of a second transmission module according to the present utility model;
FIG. 5 is a schematic diagram of structural parameters of the vacuum interrupter of the present utility model;
in the figure, 1, a frame; 2. a transmission module; 3. an insulation module; 4. a vacuum arc extinguishing chamber; 5. an insulating pull rod; 6. a main rotating shaft; 7. a brake separating sub-module; 8. a closing spring; 9. a motor gear module; 10. a contact pressure spring; 1101. a first four bar linkage; 1102. a second four bar linkage; 12. closing an electromagnet; 1301. a first iron core; 1302. a second iron core; 1401. a first pinch plate; 1402. a second pinch plate; 15. a cam positioning member; 16. a large gear; 17. a cam; 18. a movable conductive rod; 19. a gear reduction box; 20. an energy storage shaft; 21. an output shaft; 22. a first lever; 23. a brake-separating electromagnet; 24. a motor; 25. an energy storage spring; 26. a travel switch; 27. a brake separating device; 28. a first link; 29. a closing latch; 30. a second crank arm; 31. a brake separating spring; 32. a second link; 33. and an auxiliary switch.
Detailed Description
The present utility model will be described in detail with reference to the following embodiments.
As shown in fig. 1, the utility model comprises a frame 1, a transmission module 2, an insulation module 3, a vacuum arc-extinguishing chamber 4 and an insulation pull rod 5; the transmission module 2 is arranged at the upper part of the frame 1, the top of the frame 1 is connected with the insulation module 3, and the transmission module 2 is respectively connected with the insulation pull rod 5 and the vacuum arc extinguishing chamber 4;
as shown in fig. 2, 3 and 4, the transmission module 2 includes a main rotating shaft 6, a brake separating sub-module 7, a brake closing spring 8, a motor gear module 9, a contact pressure spring 10, a first four-bar linkage 1101, a second four-bar linkage 1102, a brake closing electromagnet 12, a first iron core 1301, a second iron core 1302, a first trip plate 1401, a second trip plate 1402, a cam positioning member 15, a large gear 16, a cam 17, a movable conducting rod 18, a gear reduction box 19, an energy storage shaft 20, an output shaft 21, a first crank arm 22, a brake separating electromagnet 23, a motor 24, an energy storage spring 25, a travel switch 26, a brake separating pawl 27, a first link 28, a brake closing pawl 29, a second crank arm 30, a brake separating spring 31, a second link 32 and an auxiliary switch 33;
the main rotating shaft 6 is respectively connected with one end of the brake separating submodule 7, one end of the contact pressure spring 10, one end of the brake separating spring 31, one end of the first connecting rod 28, one end of the second connecting rod 32 and one end of the auxiliary switch 33; the other end of the brake separating submodule 7 is fixedly connected with the frame 1; the other end of the brake separating spring 31 is fixedly connected with the frame 1; the closing spring 8 is arranged on one side of the opening sub-module 7 and is connected with one end of the motor gear module 9; the other end of the second connecting rod 32 is connected with the other end of the auxiliary switch 33; the other end of the contact pressure spring 10 is respectively connected with one end of the first four-bar linkage 1101 and one end of the insulating pull rod 5; the other end of the insulating pull rod 5 is connected with one end of the second four-bar mechanism 1102; the other end of the second four-bar linkage 1102 is connected with one end of the movable conducting rod 18; the other end of the movable conducting rod 18 is connected with the vacuum arc-extinguishing chamber 4; the other end of the first four-bar linkage 1101 is connected to the closing electromagnet 12; the closing electromagnet 12 is arranged outside the gear reduction box 19; the first iron core 1301 is arranged inside the closing electromagnet 12; the closing electromagnet 12 is arranged opposite to the first tripping plate 1401; the first tripping plate 1401 is fixedly connected with one end of the closing pawl 29 and the cam positioning piece 15 respectively; the cam positioning piece 15 is arranged in the middle of the gear reduction box 19; the cam positioning piece 15 is connected with the cam 17; the cam 17 is respectively connected with one end of the opening brake 27 and one end of the energy storage shaft 20; the other end of the energy storage shaft 20 is fixedly connected with one end of the large gear 16; the large gear 16 is arranged outside the gear reduction box 19, and the other end of the large gear is connected with one end of the output shaft 21; one end of the energy storage shaft 20 is connected with one end of the second crank arm 30, and the other end of the energy storage shaft is connected with the other end of the second crank arm 30; the other end of the output shaft 21 is connected with one end of a motor 24; the other end of the motor 24 is connected with the other end of the motor gear module 9; one end of the first crank arm 22 is connected with the other end of the closing pawl 29, and the other end of the first crank arm is fixedly connected with the frame 1; one end of the second trip plate 1402 is connected with the other end of the opening latch 27; the other end of the second trip plate 1402 is connected to the cam 17; the brake separating electromagnet 23 is arranged opposite to the second trip plate 1402; the second iron core 1302 is arranged inside the brake-separating electromagnet 23; one end of the energy storage spring 25 is fixedly connected with the bottom of the gear reduction box 19, and the other end of the energy storage spring is connected with one end of the energy storage shaft 20; one end of the travel switch 26 is fixedly connected with the gear reduction box 19, and the other end of the travel switch is connected with the other end of the first connecting rod 28;
the silicon rubber sleeve is arranged outside the vacuum arc-extinguishing chamber 4, and the silicon rubber sleeve bears the performances of high-voltage arc resistance and electric erosion resistance in the actual operation process of the circuit breaker, so that breakdown caused by uneven electric field intensity distribution can be effectively prevented;
as shown in fig. 5, the external insulation electric gap of the vacuum arc-extinguishing chamber 4 is 530mm, the total length is 618mm, and the size of the gap to the ground is increased, so that the circuit breaker is suitable for high altitude areas with the altitude of 4000 meters and below.
The working principle of the utility model is as follows:
the energy storage process comprises the following steps: the motor 24 is started after being electrified, the motor is decelerated through the gear module 9, the motion is transmitted to the output shaft 21, the energy storage shaft 20 is driven to rotate through the large gear 16 outside the gear reduction box 19, the energy storage spring 25 is caused to be stretched to realize energy storage, and when the second crank arms 30 at the two ends of the energy storage shaft 20 pass through the highest point, the closing pawl 29 buckles the cam positioning piece 15 for closing; the travel switch 26 is switched through the first connecting rod 28, so that the motor 24 is powered off, and the energy storage process is finished; when the energy is stored manually, the handle is inserted into a hole corresponding to the gear reduction box 19, the handle rotates clockwise, and the vacuum circuit breaker can store the energy;
and (3) closing: when the closing electromagnet 12 is electrified, the first iron core 1301 impacts the first tripping plate 1401, namely the constraint of the cam positioning piece 15 is released, and the closing spring 8 is transmitted to the first connecting rod 28 through the cam 17 and the first four-bar mechanism 1101 and the main rotating shaft 6, so that the first connecting rod 28 moves upwards to realize the closing action of the circuit breaker; the closing brake detent 29 catches the first crank arm 22 to keep the vacuum circuit breaker in a closing state; when the second pull rod 32 switches the auxiliary switch 33, the switching-on loop is switched off, the switching-off loop is switched on, and the switching-on of the circuit breaker is finished. During the closing process, the contact pressure spring 10 (over travel spring) and the opening spring 31 are stored with energy, ready for opening; when the vacuum circuit breaker is switched on manually, the constraint of the cam positioning piece 15 can be released by directly pressing a switch-on button on the top of the frame 1, so that the vacuum circuit breaker is switched on;
and (3) a brake separating process: when the opening electromagnet 23 receives the opening signal, the second iron core 1302 impacts the opening pawl 27 to separate from the second trip plate 1402; under the action of the opening spring 31 and the contact pressure spring 10, the main rotating shaft 6 is reversely rotated, so that the first connecting rod 32 is driven to move downwards, and the opening of the vacuum circuit breaker is realized; when the breaker is manually opened, the opening catch can be tripped by directly pressing the opening button on the top of the frame 1, so that the breaker is opened.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The content of the utility model is not limited to the examples listed, and any equivalent transformation to the technical solution of the utility model that a person skilled in the art can take on by reading the description of the utility model is covered by the claims of the utility model.
Claims (3)
1. An indoor vacuum circuit breaker of plateau type suitable for electric railway, its characterized in that:
comprises a frame (1), a transmission module (2), an insulation module (3), a vacuum arc-extinguishing chamber (4) and an insulation pull rod (5);
the transmission module (2) is arranged at the upper part of the frame (1), the top of the frame (1) is connected with the insulation module (3), and the transmission module (2) is respectively connected with the insulation pull rod (5) and the vacuum arc extinguishing chamber (4);
the transmission module (2) comprises a main rotating shaft (6), a brake separating submodule (7), a brake closing spring (8), a motor gear module (9), a contact pressure spring (10), a first four-bar linkage (1101), a second four-bar linkage (1102), a brake closing electromagnet (12), a first iron core (1301), a second iron core (1302), a first disengaging plate (1401), a second disengaging plate (1402), a cam positioning piece (15), a large gear (16), a cam (17), a movable conducting rod (18), a gear reduction box (19), an energy storage shaft (20), an output shaft (21), a first crank arm (22), a brake separating electromagnet (23), a motor (24), an energy storage spring (25), a travel switch (26), a brake separating pawl (27), a first connecting rod (28), a brake closing pawl (29), a second crank arm (30), a brake separating spring (31), a second connecting rod (32) and an auxiliary switch (33);
the main rotating shaft (6) is respectively connected with one end of the opening sub-module (7), one end of the contact pressure spring (10), one end of the opening spring (31), one end of the first connecting rod (28), one end of the second connecting rod (32) and one end of the auxiliary switch (33); the other end of the brake separating submodule (7) is fixedly connected with the frame (1); the other end of the brake separating spring (31) is fixedly connected with the frame (1); the closing spring (8) is arranged on one side of the opening sub-module (7) and is connected with one end of the motor gear module (9); the other end of the second connecting rod (32) is connected with the other end of the auxiliary switch (33); the other end of the contact pressure spring (10) is connected with one end of the first four-bar linkage (1101) and one end of the insulating pull rod (5) respectively; the other end of the insulating pull rod (5) is connected with one end of the second four-bar mechanism (1102); the other end of the second four-bar linkage (1102) is connected with one end of a movable conducting rod (18); the other end of the movable conducting rod (18) is connected with the vacuum arc-extinguishing chamber (4); the other end of the first four-bar linkage mechanism (1101) is connected with a closing electromagnet (12); the closing electromagnet (12) is arranged outside the gear reduction box (19); the first iron core (1301) is arranged inside the closing electromagnet (12); the closing electromagnet (12) is arranged opposite to the first tripping plate (1401); the first tripping plate (1401) is fixedly connected with one end of the closing pawl (29) and the cam positioning piece (15) respectively; the cam positioning piece (15) is arranged in the middle of the gear reduction box (19); the cam positioning piece (15) is connected with a cam (17); the cam (17) is respectively connected with one end of the opening pawl (27) and one end of the energy storage shaft (20); the other end of the energy storage shaft (20) is fixedly connected with one end of the large gear (16); the large gear (16) is arranged outside the gear reduction box (19), and the other end of the large gear is connected with one end of the output shaft (21); one end of the energy storage shaft (20) is connected with one end of the second crank arm (30), and the other end of the energy storage shaft is connected with the other end of the second crank arm (30); the other end of the output shaft (21) is connected with one end of a motor (24); the other end of the motor (24) is connected with the other end of the motor gear module (9); one end of the first crank arm (22) is connected with the other end of the closing pawl (29), and the other end of the first crank arm is fixedly connected with the frame (1); one end of the second release plate (1402) is connected with the other end of the opening pawl (27); the other end of the second trip plate (1402) is connected with a cam (17); the brake separating electromagnet (23) is arranged opposite to the second pinch plate (1402); the second iron core (1302) is arranged inside the brake separating electromagnet (23); one end of the energy storage spring (25) is fixedly connected with the bottom of the gear reduction box (19), and the other end of the energy storage spring is connected with one end of the energy storage shaft (20); one end of the travel switch (26) is fixedly connected with the gear reduction box (19), and the other end of the travel switch is connected with the other end of the first connecting rod (28).
2. An altitude indoor vacuum interrupter for use in an electrified railway as claimed in claim 1, wherein: and a silicon rubber sleeve is arranged outside the vacuum arc extinguishing chamber (4).
3. An altitude indoor vacuum interrupter adapted for use in an electrified railway as claimed in claim 2 wherein: the external insulation electric gap of the vacuum arc extinguishing chamber (4) is 530mm, and the total length is 618mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320300558.6U CN219476564U (en) | 2023-02-23 | 2023-02-23 | Indoor vacuum circuit breaker of plateau type suitable for electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320300558.6U CN219476564U (en) | 2023-02-23 | 2023-02-23 | Indoor vacuum circuit breaker of plateau type suitable for electrified railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219476564U true CN219476564U (en) | 2023-08-04 |
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ID=87436034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320300558.6U Active CN219476564U (en) | 2023-02-23 | 2023-02-23 | Indoor vacuum circuit breaker of plateau type suitable for electrified railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219476564U (en) |
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2023
- 2023-02-23 CN CN202320300558.6U patent/CN219476564U/en active Active
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