CN107403706B - 24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism - Google Patents
24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism Download PDFInfo
- Publication number
- CN107403706B CN107403706B CN201710678123.4A CN201710678123A CN107403706B CN 107403706 B CN107403706 B CN 107403706B CN 201710678123 A CN201710678123 A CN 201710678123A CN 107403706 B CN107403706 B CN 107403706B
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- Prior art keywords
- operating mechanism
- spring operating
- energy storage
- small
- shaft
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
the 24KV vacuum high-voltage circuit breaker of the small-sized modular spring operating mechanism is provided with a box body, a solid-sealed polar pole and a VSH small-sized modular spring operating mechanism are arranged in the box body, a vacuum arc extinguish chamber is arranged in the solid-sealed polar pole, an insulating pull rod is arranged at the lower part of the vacuum arc extinguish chamber, and a transmission main shaft in the VSH small-sized modular spring operating mechanism is connected with the insulating pull rod through a connecting rod crank arm structure, so that the VSH small-sized modular spring operating mechanism drives the insulating pull rod to be in a switching-on state and a switching-off. The VSH small-sized modular spring operating mechanism is used for the 24KV vacuum high-voltage circuit breaker, and the original plane arrangement dispersion type spring operating mechanism is replaced by the vertical arrangement mode of the spring operating mechanism and the vacuum arc-extinguishing chamber, so that the VSH small-sized modular spring operating mechanism occupies 60% of the volume, has 50% less parts and 30% lighter overall weight compared with the original mechanism, has the advantages of long service life, maintenance-free property, no pollution, no explosion danger, low noise and the like, and is more suitable for harsh working conditions such as frequent operation and the like.
Description
Technical Field
The invention belongs to the technical field of high-voltage switch equipment, and particularly relates to a 24KV vacuum high-voltage circuit breaker of a small-sized modular spring operating mechanism.
Background
High-voltage circuit breakers play a role in protection and control of electrical equipment, such as overload and short-circuit, in high-voltage power supply and distribution systems. The spring operating mechanism in the existing 24KV high-voltage vacuum circuit breaker is installed in a plane arrangement dispersion type, the structure is complex, the number of parts is large, the space occupation volume is large, and the weight of the vacuum high-voltage circuit breaker is light. There is therefore a need for improvements.
Disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a 24KV vacuum high-voltage circuit breaker of a small-sized modularized spring operating mechanism, the VSH small-sized modularized spring operating mechanism is applied to the 24KV vacuum high-voltage circuit breaker, the spring operating mechanism and a vacuum arc-extinguishing chamber are arranged up and down to replace the original plane arrangement dispersion type spring operating mechanism, the volume occupied by the invention is 60% less than that of the original mechanism, the number of parts is 50% less, the whole weight is 30% lighter, and the circuit breaker has the advantages of long service life, maintenance free, pollution free, explosion danger, low noise and the like, and is more suitable for harsh working conditions such as frequent operation and the like.
The technical scheme adopted by the invention is as follows: the 24KV vacuum high-voltage circuit breaker of the small-sized modular spring operating mechanism is provided with a box body, a solid-sealed polar pole and a VSH small-sized modular spring operating mechanism are arranged in the box body, a vacuum arc extinguish chamber is arranged in the solid-sealed polar pole, an insulating pull rod is arranged at the lower part of the vacuum arc extinguish chamber, and a transmission main shaft in the VSH small-sized modular spring operating mechanism is connected with the insulating pull rod through a connecting rod crank arm structure so that the VSH small-sized modular spring operating mechanism drives the insulating pull rod to be in a switching-on state and a switching-off state with.
Wherein, the small-sized modularized spring operating mechanism comprises a frame, one side of the frame is provided with a manual energy storage handle, the middle part of the frame is fixed with an energy storage motor, the frame at the lower part of the energy storage motor is provided with a primary gear shaft, the frame at the lower part of the primary gear shaft is provided with an energy storage shaft, one end of the primary gear shaft is provided with a primary gear driven by an output shaft of the energy storage motor to rotate, the energy storage shaft is provided with a secondary gear meshed with teeth of the primary gear shaft, one side of the frame is provided with an energy storage spring, one end of the energy storage shaft is connected with the lower end of the energy storage spring and can drive the energy storage spring to extend and retract, the frame is provided with a limiting rod, the energy storage shaft is provided with a clutch wheel pressing block which can press down to enable the secondary gear to, the cam is provided with a brake separating pawl, the transmission main shaft is provided with a main shaft connecting lever, one end of the main shaft connecting lever is provided with a closing roller and a brake separating roller which are matched with the brake separating pawl, the rack is provided with a brake separating spring, and the upper end of the brake separating spring is connected with the other end of the main shaft connecting lever; and the upper part of the rack is provided with a closing electromagnet and an opening electromagnet.
Further, connecting rod connecting lever structure includes even board and transmission main connecting lever, even board one end is rotated with the main shaft connecting lever and is connected, even the board other end is rotated with transmission main connecting lever one end and is connected, the transmission main connecting lever other end is rotated with insulating pull rod lower extreme and is connected.
Compared with the prior art, the invention has the advantages that:
1. the VSH small-sized modular spring operating mechanism is applied to the 24KV vacuum high-voltage circuit breaker, and the original plane arrangement dispersion type spring operating mechanism is replaced by the vertical arrangement mode of the spring operating mechanism and the vacuum arc-extinguishing chamber, so that the volume occupied by the VSH small-sized modular spring operating mechanism is 60% smaller than that of the original mechanism, the number of parts is 50% smaller, the overall weight is 30% lighter, and the VSH small-sized modular spring operating mechanism has the advantages of long service life, maintenance-free property, no pollution, no explosion danger, low noise and the like, and is more suitable for harsh working conditions such as;
2. In the scheme, the transmission main shaft adopts a welded three-phase integrated structure, so that the synchronism of three phases is ensured, and the transmission main shaft is easier and simpler in installation and matching than the original mechanism and more convenient to maintain and replace;
3. vacuum interrupter adopts APG epoxy resin to pour into a mould in solid utmost point post in this scheme, has simplified the complicated assembly adjustment link of three-phase major loop, has reduced the damage that probably causes vacuum interrupter and each bolt coupling because the vibration leads to the fact not hard up in the assembling process, and unique epoxy utmost point post has ageing resistance, high temperature resistance, low temperature resistance and higher mechanical strength, has avoided the shortcoming that the explosion chamber surface of vacuum circuit breaker who uses the air as insulating medium easily receives the damage completely.
Drawings
FIG. 1 is a front view of the structure of the present invention;
Fig. 2 is a right side view of the structure of the present invention.
Detailed Description
Embodiments of the present invention are described below with reference to fig. 1-2.
A24 KV vacuum high-voltage circuit breaker of a small-sized modularized spring operating mechanism is provided with a box body 4, a solid-sealed pole 2 and a VSH small-sized modularized spring operating mechanism 1 are arranged in the box body 4, a vacuum arc-extinguishing chamber 3 is arranged in the solid-sealed pole 2, the vacuum arc-extinguishing chamber 3 is poured on the solid-sealed pole 2 through APG epoxy resin, the complex assembly and adjustment link of a three-phase main loop is simplified, the damage to the vacuum arc-extinguishing chamber possibly caused in the assembly process and the looseness caused by vibration due to the fact that the vacuum arc-extinguishing chamber is connected through bolts are reduced, and the unique epoxy resin pole has ageing resistance, high temperature resistance, low temperature resistance and high mechanical strength, and the defect that the outer surface of the arc-extinguishing chamber of the vacuum circuit breaker taking air as an insulating medium is prone to.
the lower part of the vacuum arc extinguish chamber 3 is provided with an insulating pull rod 5, and a transmission main shaft 10 in the VSH small-sized modular spring operating mechanism 1 is connected with the insulating pull rod 5 through a connecting rod crank arm structure, so that the VSH small-sized modular spring operating mechanism 1 drives the insulating pull rod 5 and the vacuum arc extinguish chamber 3 to realize the states of switching on and switching off. Wherein, the small-size modularization spring operating mechanism 1 of VSH includes frame 28, frame 28 one side is equipped with manual energy storage handle 16, frame 28 middle part is fixed with energy storage motor 26, be equipped with one-level gear shaft 13 on the frame 28 of energy storage motor 26 lower part, be equipped with energy storage shaft 17 on the frame 28 of one-level gear shaft 13 lower part, one end of one-level gear shaft 13 is equipped with by energy storage motor 1 output shaft drive pivoted one-level gear 12, be equipped with the secondary gear 14 with the tooth meshing of one-level gear shaft 13 on the energy storage shaft 17, frame 28 one side is equipped with energy storage spring 11, energy storage shaft 17 one end is connected and can drive its flexible with energy storage spring 11 lower extreme, be equipped with gag lever post 20 on the frame 28, be equipped with on the energy storage shaft 17 and make the clutch pulley briquetting of secondary gear 14 from energy storage shaft 17 separation and reunion with gag, the energy storage retaining catch 21 is arranged on the cam 15, the closing catch 22 matched with the energy storage retaining catch 21 is arranged on the rack 28, the opening catch 24 is arranged on the cam 15, the main shaft crank arm 8 is arranged on the transmission main shaft 10, the closing roller 23 and the opening roller 25 matched with the opening catch 24 are arranged at one end of the main shaft crank arm 8, the opening spring 6 is arranged on the rack 28, and the upper end of the opening spring 6 is connected with the other end of the main shaft crank arm 8; the upper part of the frame 28 is provided with a closing electromagnet 18 and an opening electromagnet 19. The connecting rod crank arm structure comprises a connecting plate 9 and a transmission main crank arm 7, one end of the connecting plate 9 is rotatably connected with a main shaft crank arm 8, the other end of the connecting plate 9 is rotatably connected with one end of the transmission main crank arm 7, and the other end of the transmission main crank arm 7 is rotatably connected with the lower end of the insulating pull rod 5. Preferably, the transmission main shaft 10 adopts a welded three-phase integrated structure, so that the synchronism of three phases is ensured, the installation and the matching are easier and simpler than those of the original mechanism, and the maintenance and the replacement are more convenient.
When the invention works, the energy storage action is as follows: this circuit breaker has manual energy storage and electronic energy storage dual mode, after energy storage motor 26 circular telegram back or pulling manual energy storage handle 16, drive one-level gear 12 clockwise, one-level gear 12 drives secondary gear 14 anticlockwise rotation through one-level gear axle 11, thereby make energy storage shaft 17 anticlockwise rotation and pulling energy storage spring 11 energy storage, when reaching the energy storage position, gag lever post 20 pushes down the clutch pulley briquetting on the energy storage shaft 17, make secondary gear 14 and energy storage shaft 17 throw off, energy storage keeps pawl 21 to withstand combined floodgate pawl 22, the circuit breaker is in the ready state of closing a floodgate this moment. Closing action: when the closing electromagnet 18 is electrified, the movable iron core of the coil is attracted or the movable iron core of the closing electromagnet 18 is pressed down, the closing pawl 22 moves upwards to be separated from the energy storage retaining pawl 21, meanwhile, the energy storage spring 11 contracts to drive the cam 15 on the energy storage shaft 17 to rotate anticlockwise, the cam 15 rotates anticlockwise and presses down the closing roller 23 on the main shaft crank arm 8, so that the transmission main shaft 10 rotates anticlockwise by about 38 degrees, and at the moment, the connecting plate 9 presses down the transmission main crank arm 7 to rotate by about 10 degrees to drive the insulation pull rod 5 to move upwards by about 14 mm. The insulating pull rod 5 and the vacuum arc-extinguishing chamber 3 move vertically upwards to reach a switching-on position, the switching-off pawl 24 and the switching-off roller 23 are abutted at the position, the contact spring 27 in the insulating pull rod 5 is compressed by about 3.5mm, the switching-off spring 6 is stretched by 20mm, and the circuit breaker is in a switching-off preparation state at the moment.
The VSH small-sized modular spring operating mechanism 1 is applied to a 24KV vacuum high-voltage circuit breaker, the original plane arrangement dispersion type spring operating mechanism is replaced by a vertical arrangement mode of the spring operating mechanism and the vacuum arc-extinguishing chamber, the volume occupied by the VSH small-sized modular spring operating mechanism is 60% less than that of the original mechanism, the number of parts is 50% less, the whole weight is 30% lighter, and the VSH small-sized modular spring operating mechanism has the advantages of long service life, maintenance-free property, no pollution, no explosion danger, low noise and the like, is more suitable for harsh working conditions such as frequent operation;
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (4)
1. 24KV vacuum high-voltage circuit breaker of small-size modularization spring operating mechanism has box (4), its characterized in that: the small-sized modularized spring operating mechanism is characterized in that a solid-sealed pole (2) and a small-sized modularized spring operating mechanism (1) are arranged in the box body (4), a vacuum arc-extinguishing chamber (3) is arranged in the solid-sealed pole (2), an insulating pull rod (5) is arranged at the lower part of the vacuum arc-extinguishing chamber (3), and a transmission main shaft (10) in the small-sized modularized spring operating mechanism (1) is connected with the insulating pull rod (5) through a connecting rod crank arm structure, so that the small-sized modularized spring operating mechanism (1) drives the insulating pull rod (5) and the vacuum arc-extinguishing chamber (3) to realize the states of switching on and; the small-sized modularized spring operating mechanism (1) comprises a frame (28), a manual energy storage handle (16) is arranged on one side of the frame (28), an energy storage motor (26) is fixed in the middle of the frame (28), a primary gear shaft (13) is arranged on the frame (28) at the lower part of the energy storage motor (26), an energy storage shaft (17) is arranged on the frame (28) at the lower part of the primary gear shaft (13), a primary gear (12) driven to rotate by an output shaft of the energy storage motor (26) is arranged at one end of the primary gear shaft (13), a secondary gear (14) meshed with teeth of the primary gear shaft (13) is arranged on the energy storage shaft (17), an energy storage spring (11) is arranged on one side of the frame (28), one end of the energy storage shaft (17) is connected with the lower end of the energy storage spring (11) and can drive, a clutch wheel pressing block which is pressed down by a limiting rod (20) to enable a secondary gear (14) to be disengaged and disengaged from the energy storage shaft (17) is arranged on the energy storage shaft (17), a cam (15) is arranged on the energy storage shaft (17), an energy storage retaining pawl (21) is arranged on the cam (15), a closing pawl (22) matched with the energy storage retaining pawl (21) is arranged on the rack (28), an opening pawl (24) is arranged on the cam (15), a main shaft crank arm (8) is arranged on the transmission main shaft (10), a closing roller (23) and an opening roller (25) matched with the opening pawl (24) are arranged at one end of the main shaft crank arm (8), an opening spring (6) is arranged on the rack (28), and the upper end of the opening spring (6) is connected with the other end of the main shaft crank arm (8); and the upper part of the rack (28) is provided with a closing electromagnet (18) and an opening electromagnet (19).
2. The 24KV vacuum high-voltage circuit breaker of small modular spring operating mechanism of claim 1, wherein: the connecting rod connecting lever structure comprises a connecting plate (9) and a transmission main connecting lever (7), one end of the connecting plate (9) is rotatably connected with the main shaft connecting lever (8), the other end of the connecting plate (9) is rotatably connected with one end of the transmission main connecting lever (7), and the other end of the transmission main connecting lever (7) is rotatably connected with the lower end of the insulating pull rod (5).
3. The 24KV vacuum high-voltage circuit breaker of small modular spring operating mechanism according to claim 1 or 2, characterized in that: the transmission main shaft (10) adopts a welded three-phase integrated structure.
4. The 24KV vacuum high-voltage circuit breaker of small modular spring operating mechanism of claim 3, wherein: the vacuum arc-extinguishing chamber (3) is cast in the solid-sealed pole (2) by adopting APG epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678123.4A CN107403706B (en) | 2017-08-10 | 2017-08-10 | 24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678123.4A CN107403706B (en) | 2017-08-10 | 2017-08-10 | 24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107403706A CN107403706A (en) | 2017-11-28 |
| CN107403706B true CN107403706B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710678123.4A Active CN107403706B (en) | 2017-08-10 | 2017-08-10 | 24KV vacuum high-voltage circuit breaker of small-sized modularized spring operating mechanism |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172456A (en) * | 2018-02-22 | 2018-06-15 | 江苏森源电气股份有限公司 | High-voltage generator vacuum circuit breaker |
| CN111653450A (en) * | 2019-03-04 | 2020-09-11 | 胡春生 | Magnetic latching operation mechanism for gas insulated circuit breaker cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956268U (en) * | 2011-03-29 | 2011-08-31 | 贵州长征电器成套有限公司 | Indoor solid-sealed type high-voltage vacuum circuit breaker |
| CN105374621A (en) * | 2015-12-03 | 2016-03-02 | 陕西龙翔电器有限公司 | Modularization spring operating mechanism for high voltage vacuum circuit breaker |
| CN205609436U (en) * | 2016-05-13 | 2016-09-28 | 浙江宏伟电网科技股份有限公司 | Solid -sealed vacuum circuit breaker |
| CN206992007U (en) * | 2017-07-28 | 2018-02-09 | 陕西华电电气有限公司 | 35KV vacuum high-voltage circuit breaker with VSH small-sized modular spring operating mechanism |
-
2017
- 2017-08-10 CN CN201710678123.4A patent/CN107403706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201956268U (en) * | 2011-03-29 | 2011-08-31 | 贵州长征电器成套有限公司 | Indoor solid-sealed type high-voltage vacuum circuit breaker |
| CN105374621A (en) * | 2015-12-03 | 2016-03-02 | 陕西龙翔电器有限公司 | Modularization spring operating mechanism for high voltage vacuum circuit breaker |
| CN205609436U (en) * | 2016-05-13 | 2016-09-28 | 浙江宏伟电网科技股份有限公司 | Solid -sealed vacuum circuit breaker |
| CN206992007U (en) * | 2017-07-28 | 2018-02-09 | 陕西华电电气有限公司 | 35KV vacuum high-voltage circuit breaker with VSH small-sized modular spring operating mechanism |
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| CN107403706A (en) | 2017-11-28 |
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Effective date of registration: 20191113 Address after: 215000 No.138, East Street, Huangqiao street, Xiangcheng District, Suzhou City, Jiangsu Province Applicant after: Suzhou Xiangcheng District Huangqiao Industrial Park Economic Development Co., Ltd Address before: 721000, No. 1, No. 73, cold spring village, Ma Ying Town, Weibin District, Baoji, Shaanxi Applicant before: Wang Hongdan |
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