CN219553509U - Permanent magnet vacuum circuit breaker capable of prolonging service life of electric arc furnace - Google Patents
Permanent magnet vacuum circuit breaker capable of prolonging service life of electric arc furnace Download PDFInfo
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- CN219553509U CN219553509U CN202320170465.6U CN202320170465U CN219553509U CN 219553509 U CN219553509 U CN 219553509U CN 202320170465 U CN202320170465 U CN 202320170465U CN 219553509 U CN219553509 U CN 219553509U
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- permanent magnet
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- arc furnace
- service life
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- 238000010891 electric arc Methods 0.000 title abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims description 70
- 230000003139 buffering effect Effects 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model discloses a permanent magnet vacuum circuit breaker capable of prolonging the service life of an arc furnace, and particularly relates to the technical field of circuit breakers. The utility model adopts a unique transmission design, improves the mechanical life and the electrical life, can be used as a special breaker for the load of the electric arc furnace, not only reduces the investment of users on complete products, but also improves the product performance, achieves the technical effects of simple structure, low price, convenient installation and use and the like, and has the characteristics of simple structure, direct and convenient viewing, strong application expansibility, high cost performance and the like compared with the like products on the market, so that the product has very strong competitiveness in the same line and larger profit space.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a permanent magnet vacuum circuit breaker capable of prolonging the service life of an arc furnace.
Background
The indoor permanent magnet high-voltage vacuum circuit breaker is three-phase alternating current 50Hz, and is an indoor switch device with rated voltage of 40.5kV, has extremely high reliability and service life, is particularly suitable for places with severe conditions such as frequent operation, multiple-time open-circuit and short-circuit open-circuit current break and the like, can be used for controlling and protecting electric facilities of electric arc furnaces of metallurgical enterprises, industrial and mining enterprises, power plants and substations, can be widely applied to various working conditions of electric arc furnace smelting LF refining and other frequent operations, requires the corresponding switch device to perform super-frequency actions in the use process based on the smelting technology of high-energy electric arcs, can reliably cut off fault current when faults occur, has extremely long mechanical service life, can reduce power failure time for steel users, improves economic benefits and reduces use risks.
The utility model patent of China with the publication number of CN104021976A discloses a permanent magnet vacuum circuit breaker, which comprises a circuit breaker body and a controller, wherein the controller comprises a permanent magnet mechanism and a manual switching-on mechanism; the former permanent magnet vacuum circuit breaker is closed on an outdoor branch line and is operated by charging a generator, and power generation equipment is transported in a remote mountain area, so that the working difficulty of related personnel is not easy to increase.
In summary, the above patent is applied to the breaker in this field in the state at present, import products such as ABB, siemens, eaton, etc. are most popular, and most of them are spring operating mechanisms, which are expensive, and the investment cost of users is high, and because of the specificity of metallurgical industries such as steel, etc., the complete equipment is difficult to replace in batches, so that the replaced equipment has to ensure long service life in addition to satisfying the complete mechanical and electrical interchange, therefore, based on this problem, the utility model designs a permanent magnet vacuum breaker capable of prolonging the service life of an arc furnace.
Disclosure of Invention
The technical scheme of the utility model aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and aims at overcoming the defects of the prior art, and provides a permanent magnet vacuum circuit breaker capable of prolonging the service life of an arc furnace so as to solve the technical problem in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a permanent magnetism vacuum circuit breaker that can prolong electric arc furnace life, includes the top panel part, the bottom fixedly connected with pushing mechanism of top panel part, and the rear side of top panel part installs main return circuit part, the bottom fixedly connected with circuit breaker frame part of main return circuit part, the rear end connection of circuit breaker frame part has the frame backplate, and the front end connection of circuit breaker frame part has the frame panel, the bottom of circuit breaker frame part is provided with the supporting seat, and earthing device is installed to the bottom of supporting seat, be provided with the panel valve on the frame panel, the bottom outer wall of circuit breaker frame part is provided with the uide bushing, and the bottom outer wall of uide bushing is close to the below one side of uide bushing and is provided with the valve push rod, the rear end outer wall of pushing mechanism is provided with advance and retreat handcart operating hole, and the rear end outer wall of pushing mechanism is located one side of advance and retreat handcart operating hole is provided with urgent brake operating hole, is located the inboard of frame panel between two circuit breaker frame parts and is connected with the frame panel, install main return circuit transmission part on the spline, the inside of circuit breaker frame part is located main return circuit part, permanent magnetism transmission part is provided with the permanent magnetism drive mechanism, the permanent magnetism drive mechanism is provided with the top spline drive part, the permanent magnetism drive mechanism has the top drive part to close.
As a further improvement of the technical scheme of the utility model, the bottom of the upper panel component is fixedly connected with the top of the pushing mechanism through screws.
As a further improvement of the technical scheme of the utility model, the main circuit part comprises a solid-sealed polar pole, the bottom of the solid-sealed polar pole is provided with an insulating pull rod part, the outer wall of the middle part of the solid-sealed polar pole is connected with a contact arm sleeve, the end part of the contact arm sleeve is connected with a movable contact arm, and the end part of the movable contact arm is provided with a movable contact.
As a further improvement of the technical scheme of the utility model, the bottom of the breaker frame component is provided with land wheel components close to four corner positions, and the land wheel components are movably connected with the bottom of the breaker frame component through connecting shafts.
As a further improvement of the technical scheme of the utility model, the main loop transmission part comprises an oil buffering crank arm connected to the outside of the spline shaft, one end part of the oil buffering crank arm is movably connected with a roller, the bottom of the roller is connected with an oil buffer, the other end part of the oil buffering crank arm is movably connected with a connecting plate, one end part of the connecting plate is movably connected with a long crank arm, one end part of the long crank arm is movably connected with a connecting and disconnecting plate, one end part of the connecting and disconnecting plate is connected with a connecting and disconnecting instruction, the outer wall of the long crank arm is connected with a disconnecting spring part, and the main loop transmission part also comprises an insulator connecting rod connected with the bottom of the main loop part.
As a further improvement of the technical scheme of the utility model, the main loop component is fixedly connected with the top of the breaker frame component through screws.
As a further improvement of the technical scheme of the utility model, the frame backboard is fixedly connected with the rear end part of the circuit breaker frame part through screws, and a plurality of through holes are uniformly formed in the spline shaft.
The utility model has the beneficial effects that:
the utility model is based on advanced vacuum arc-extinguishing chamber technology and innovative optimized special permanent magnet mechanism, and under the condition of ensuring that the original main external dimension is unchanged and the machinery and the electricity are completely exchanged, the utility model adopts a unique transmission design, improves the mechanical life and the electrical life, can be used as a special breaker for the electric arc furnace load, not only reduces the investment of users on complete products, but also improves the product performance, achieves the technical effects of simple structure, low price, convenient installation and use, and the like, and has the characteristics of simple structure, direct and convenient viewing, strong application expansibility, high cost performance, and the like compared with similar products on the market, so that the product has very strong competitive power in the same row and has larger profit space.
Drawings
Figure 1 is an isometric view of the front face of the inventive circuit breaker.
Fig. 2 is a front view of the inventive circuit breaker.
Fig. 3 is a front view of the inventive circuit breaker hidden panel.
Fig. 4 is a sectional view of the inventive circuit breaker A-A, showing the driving transmission principle of the permanent magnet mechanism.
Figure 5 is an isometric view of the rear of the inventive circuit breaker.
Fig. 6 is a sectional view of the utility model breaker B-B showing the principle of main circuit B phase transmission.
Fig. 7 is a rear view of the inventive circuit breaker.
Fig. 8 is a top view of the inventive circuit breaker.
Fig. 9 is a side view of the inventive circuit breaker main conductive loop assembly.
Figure 10 is an isometric view of the front and rear panels of the circuit breaker frame assembly of the utility model removed.
Fig. 11 is a cross-sectional view of the main circuit component encapsulated pole of the circuit breaker of the utility model.
Fig. 12 is a cross-sectional view of the main circuit transmission part of the inventive circuit breaker.
The reference numerals are: 1. an upper panel member; 2. a main circuit component; 201. sealing the polar post; 202. a moving contact; 203. a movable contact arm; 204. a contact arm sleeve; 205. an insulating pull rod component; 3. a propulsion mechanism; 4. a circuit breaker frame member; 5. a grounding device; 6. a guide sleeve; 7. a valve push rod; 8. a land wheel component; 9. a spline shaft; 10. a main circuit transmission member; 101. an oil buffer crank arm; 102. a roller; 103. an oil buffer; 104. a connecting plate; 105. a long crank arm; 106. an insulator connecting rod; 107. a brake separating spring part is arranged; 108. a closing and opening connecting plate; 109. a closing and opening indication; 11. a permanent magnet mechanism driving part; 12. a manual transmission part; 13. a permanent magnet mechanism ejector rod component; 14. an emergency brake separating device; 15. advancing and retreating the handcart operation hole; 16. an emergency brake opening operation hole; 17. a panel shutter; 18. a frame panel; 19. a frame back plate.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The permanent magnet vacuum circuit breaker capable of prolonging the service life of an arc furnace as shown in the attached drawings 1-12 comprises an upper panel part 1, wherein a pushing mechanism 3 is fixedly connected to the bottom of the upper panel part 1, a main loop part 2 is installed on the rear side of the upper panel part 1, a circuit breaker frame part 4 is fixedly connected to the bottom of the main loop part 2, a frame backboard 19 is connected to the rear end of the circuit breaker frame part 4, a frame panel 18 is connected to the front end of the circuit breaker frame part 4, a supporting seat is arranged at the bottom of the circuit breaker frame part 4, a grounding device 5 is installed at the bottom of the supporting seat, a panel valve 17 is arranged on the frame panel 18, a guide sleeve 6 is arranged on the bottom outer wall of the circuit breaker frame part 4, a valve push rod 7 is arranged on one side of the bottom outer wall of the guide sleeve 6 close to the lower side of the guide sleeve 6, an emergency brake operating hole 16 is arranged on the rear end outer wall of the pushing mechanism 3, an emergency brake operating hole 9 is connected to the inner side of the two circuit breaker frame parts 4, a permanent magnet spline shaft 9 is connected to the inner side of the frame 18, a permanent magnet spline shaft 9 is arranged on the inner side of the frame part 4, a permanent magnet spline driving mechanism 11 is arranged on the permanent magnet spline driving mechanism 11, and a permanent magnet spline driving mechanism 11 is arranged on one side of the permanent magnet spline driving mechanism 11 is arranged on the main loop part 11.
As shown in fig. 9, the main circuit component 2 includes a solid sealed pole 201, an insulating pull rod component 205 is disposed at the bottom of the solid sealed pole 201, a contact arm sleeve 204 is connected to the outer wall of the middle of the solid sealed pole 201, a movable contact arm 203 is connected to the end of the contact arm sleeve 204, and a movable contact 202 is disposed at the end of the movable contact arm 203.
As shown in fig. 12, the main circuit transmission component 10 includes an oil buffer crank arm 101 connected to the outside of the spline shaft 9, one end portion of the oil buffer crank arm 101 is movably connected with a roller 102, the bottom of the roller 102 is connected with an oil buffer 103, the other end portion of the oil buffer crank arm 101 is movably connected with a connecting plate 104, one end portion of the connecting plate 104 is movably connected with a long crank arm 105, one end portion of the long crank arm 105 is movably connected with a connection and disconnection plate 108, one end portion of the connection and disconnection plate 108 is connected with a connection and disconnection indicator 109, the outer wall of the long crank arm 105 is connected with a disconnection spring unit 107, and the main circuit transmission component 10 further includes an insulator connecting rod 106 connected with the bottom of the main circuit component 2.
Preferably, the frame panel 18 of the removable frame of the breaker main body is of a combined structure, the left side panel and the right side panel are of a reverse U shape, the long part is attached to the breaker frame component 4, the middle part is of a positive U shape, the right upper part is provided with a panel valve, and the panel valve can be pushed to open left and right.
Preferably, the insulating pull rod part 205 is internally provided with a compression spring, provides over-travel for the arc extinguishing chamber contact, provides rated contact pressure in a closing state, and ensures a short circuit breaking function in a normal running state.
Preferably, the emergency brake opening operation hole 16 is connected with a rotatable 16x16 square shaft, and the emergency brake opening operation hole 16 of the propulsion mechanism 3 and the driving and reversing handcart operation hole 15 share one operation handle.
Preferably, the upper surfaces of the two permanent magnet mechanism ejector rod parts 13 are tightly contacted and locked with the lower surfaces of the permanent magnet mechanism driving parts 11 through bolts at the upper parts of the two permanent magnet mechanism ejector rod parts, so that the freedom degree of the permanent magnet mechanism driving parts 11 in the up-down direction is restrained, the fact that the body of the permanent magnet mechanism driving parts 11 is loosened is ensured not to be generated in the frequent operation of tens of thousands of times, and the transmission efficiency of the permanent magnet mechanism driving parts 11 is ensured.
Preferably, the main circuit transmission member 10 is in the form of a four bar linkage.
Preferably, the on-off indication function is realized by driving the on-off connecting plate 108 through a pin shaft on the right side of the long crank arm 105, so that the on-off indication 109 swings, and on-off observation is realized through a fan-shaped indication mark on the right side.
Working principle: the main circuit part 2 of the utility model consists of a solid sealed polar pole 201, a movable contact 202, a movable contact arm 203, a contact arm sleeve 204 and an insulating pull rod part 205, wherein the solid sealed polar pole 201 is formed by sealing and vacuum casting an arc extinguish chamber and upper and lower copper conductive blocks by epoxy resin, the surface of a left exposed copper part is connected with the movable contact arm 203, and the lower side is connected with the insulating pull rod part 205 through flexible connection, wherein the insulating pull rod part 205 not only plays a role of high-voltage isolation, but also is internally provided with a compression spring to provide an over-travel for the arc extinguish chamber contact, provide a rated contact pressure in a closing state and ensure a short circuit opening function in a conventional running state.
The propulsion mechanism 3 is arranged on the front surface of the breaker frame component 4, as shown in fig. 2, 3, 4 and 5, the part is composed of two parts, as shown in the front surface of fig. 3, wherein the stationary part is composed of a C-shaped cross beam, a left side retracting handcart operation hole 15 is connected with a rotatable screw rod, a right side emergency brake separating operation hole 16 is connected with a rotatable 16x16 square shaft, a phi 16 positioning column of a telescopic cross beam of the C-shaped cross beam is positioned with a left pin hole and a right pin hole of a cabinet body, the movable part is connected with the breaker frame component 4 by a U-shaped mounting plate, the U-shaped mounting plate is provided with a threaded sleeve meshed with the screw rod, a tool is inserted into the retracting handcart operation hole 15, a shaking handle enables the breaker frame component 4 to bear force in the front-rear direction, the ground of the cabinet body is moved by a ground wheel component 8, the emergency brake separating operation hole 16 of the propulsion mechanism 3 and the retracting handcart operation hole 15 share one operation handle, the common handle is inserted into the emergency brake separating operation hole 16 to anticlockwise rotate, the emergency brake separating mechanism 3 is in an electrical failure in the working state, the emergency brake separating mechanism is realized, the emergency brake separating mechanism is driven by the emergency brake separating mechanism 16, and the emergency brake separating mechanism is driven by the common emergency brake separating mechanism 16, and the emergency separating mechanism 16 is driven by the emergency brake separating mechanism 14.
The permanent magnet mechanism driving part 11 is arranged between the middle phase and the right phase of the main loop part 2, the cylindrical closed cavity of the permanent magnet mechanism driving part 11 is a fixed part, the upper surface of the cylindrical closed cavity is lifted below the mounting plate of the circuit breaker frame part 4, a mounting hole for mounting the permanent magnet mechanism ejector rod part 13 is formed in the lower bottom plate of the circuit breaker frame part 4, after the permanent magnet mechanism driving part 11 is mounted and regulated, in order to avoid the displacement of the permanent magnet mechanism driving part 11 in the vertical direction during operation, the upper surface of the permanent magnet mechanism driving part 11 is tightly contacted and locked with the lower surface of the permanent magnet mechanism driving part 11 through bolts at the upper parts of the two permanent magnet mechanism ejector rod parts 13, the freedom degree of the permanent magnet mechanism driving part 11 in the vertical direction is restrained, so that tens of thousands of times of frequent operations do not generate looseness of the body of the permanent magnet mechanism driving part 11, the transmission efficiency of the permanent magnet mechanism driving part 11 is ensured, a movable body is arranged in the cylindrical closed cavity of the permanent magnet mechanism driving part 11, the mounting plate of the circuit breaker frame part 4 is penetrated out through the upper end cover hole, the spline shaft is driven to rotate through a connecting plate through a pin shaft of the mounting hole, the mounting plate, the permanent magnet mechanism driving part 11 is driven by the spline shaft through the mounting plate, the power transmission of the permanent magnet mechanism driving part 11 is realized, the manual transmission part 12 is arranged on the circuit breaker frame part 4 in the position, when the handle is opened and the handle is pushed down by the handle 12 is operated, the handle is pushed down, and the manual operation state is convenient, and the handle is opened and closed, and the handle state is convenient to be opened and opened, and opened and closed.
The emergency brake separating device 14 is arranged, and the cam shaft at the lower part of the permanent magnet mechanism driving part 11 drives the connecting rod to be combined with the right emergency brake separating part of the propulsion mechanism 3 to complete the emergency brake separating function of the circuit breaker.
The main circuit transmission part 10 is arranged, as shown in fig. 12, the position is shown as a breaker B phase, the breaker is positioned at a brake separating position, at the moment, a right roller 102 on an oil buffer crank arm 101 is pressed at the upper part of the oil buffer 103, the working principle of brake closing is as follows, the oil buffer crank arm 101 is driven to rotate anticlockwise through a spline shaft 9, a connecting plate 104 is driven by a pin shaft to enable a long crank arm 105 to rotate anticlockwise, an insulator connecting rod 106 is driven by a right pin shaft to move upwards, an insulating pull rod part 205 of the main circuit part 2 is driven to move upwards, so that contacts in an arc extinguishing chamber are closed and pressed to complete the brake closing action of the breaker, the main circuit transmission part 10 is in a four-bar transmission mode, at the moment, a brake separating spring part 107 is compressed and stores energy through a pin shaft at the left side of the long crank arm 105, the brake separating action principle is as follows, after a permanent magnet mechanism driving part 11 obtains a brake separating instruction, a permanent magnet mechanism body brake separating coil is electrified, a permanent magnet mechanism reverse magnetic field is formed, the holding force of the permanent magnet mechanism is instantaneously reduced, the clockwise crank arm 105 formed by the clockwise coupling of the long crank arm 105 formed by the connecting spring part 107 and the insulating part 205, the clockwise crank arm 105 moves clockwise through the connecting plate, the connecting plate 205 is driven by the rotating the connecting plate, the same principle as the clockwise, and the same AC is driven by the rotating the connecting plate, and the same principle as the rotating shaft, and the brake separating mechanism, and the brake is simultaneously, and the brake is completely closed by the same as the rotating shaft.
According to the function realization principle of the closing and opening indication 109, as shown in a C phase in fig. 12, the closing and opening connection plate 108 is driven by a pin shaft on the right side of the long crank arm 105, so that the closing and opening indication 109 swings, and the opening and closing observation is realized by a fan-shaped indication mark on the right side.
Fig. 6 shows the breaking position of the circuit breaker according to the present utility model, wherein the emergency breaking function of the circuit breaker according to the present utility model is achieved by combining the cam shaft driving link at the lower part of the driving part 11 of the permanent magnet mechanism with the emergency breaking part at the right side of the propulsion mechanism 3.
In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;
finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. Permanent magnet vacuum circuit breaker capable of prolonging service life of arc furnace, comprising an upper panel component (1), and characterized in that: the bottom of the upper panel component (1) is fixedly connected with a propelling mechanism (3), the rear side of the upper panel component (1) is provided with a main loop component (2), the bottom of the main loop component (2) is fixedly connected with a circuit breaker frame component (4), the rear end part of the circuit breaker frame component (4) is connected with a frame backboard (19), the front end part of the circuit breaker frame component (4) is connected with a frame panel (18), the bottom of the circuit breaker frame component (4) is provided with a supporting seat, the bottom of the supporting seat is provided with a grounding device (5), the frame panel (18) is provided with a panel valve (17), the bottom outer wall of the circuit breaker frame component (4) is provided with a guide sleeve (6), one side of the bottom outer wall of the guide sleeve (6) close to the lower side of the guide sleeve (6) is provided with a valve push rod (7), the rear end outer wall of the propelling mechanism (3) is provided with a forward and backward handcart operation hole (15), one side of the rear end outer wall of the propelling mechanism (3) located in the forward and backward handcart operation hole (15) is provided with an emergency brake separating hole (16), the bottom outer wall of the supporting seat is provided with a spline (9) between two main loop components (9) and the main loop component (9) is connected with a spline (9), the circuit breaker is characterized in that a permanent magnet mechanism driving part (11) is arranged at one side of the main loop transmission part (10) inside the circuit breaker frame part (4), a manual transmission part (12) is arranged at the top of the permanent magnet mechanism driving part (11), a permanent magnet mechanism ejector rod part (13) is arranged at the bottom of the permanent magnet mechanism driving part (11), and an emergency brake separating device (14) is connected to the permanent magnet mechanism driving part (11).
2. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the bottom of the upper panel component (1) is fixedly connected with the top of the pushing mechanism (3) through screws.
3. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the main circuit component (2) comprises a solid-sealed polar pole (201), an insulating pull rod component (205) is arranged at the bottom of the solid-sealed polar pole (201), a contact arm sleeve (204) is connected to the outer wall of the middle of the solid-sealed polar pole (201), a movable contact arm (203) is connected to the end of the contact arm sleeve (204), and a movable contact (202) is arranged at the end of the movable contact arm (203).
4. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the bottom of circuit breaker frame part (4) is close to four corner positions department and all installs land wheel part (8), pass through connecting axle swing joint between the bottom of land wheel part (8) and circuit breaker frame part (4).
5. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the main loop transmission part (10) comprises an oil buffering crank arm (101) connected to the outside of a spline shaft (9), a roller (102) is movably connected to one end of the oil buffering crank arm (101), an oil buffer (103) is connected to the bottom of the roller (102), a connecting plate (104) is movably connected to the other end of the oil buffering crank arm (101), a long crank arm (105) is movably connected to one end of the connecting plate (104), a connecting plate (108) is movably connected to one end of the long crank arm (105), a connecting and disconnecting indication (109) is connected to one end of the connecting plate (108), a disconnecting spring part (107) is connected to the outer wall of the long crank arm (105), and the main loop transmission part (10) further comprises an insulator connecting rod (106) connected to the bottom of the main loop part (2).
6. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the main loop component (2) is fixedly connected with the top of the breaker frame component (4) through screws.
7. A permanent magnet vacuum circuit breaker capable of extending the service life of an arc furnace according to claim 1, wherein: the frame backboard (19) is fixedly connected with the rear end part of the breaker frame component (4) through screws, and a plurality of through holes are uniformly formed in the spline shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170465.6U CN219553509U (en) | 2023-02-09 | 2023-02-09 | Permanent magnet vacuum circuit breaker capable of prolonging service life of electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320170465.6U CN219553509U (en) | 2023-02-09 | 2023-02-09 | Permanent magnet vacuum circuit breaker capable of prolonging service life of electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219553509U true CN219553509U (en) | 2023-08-18 |
Family
ID=87733166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320170465.6U Active CN219553509U (en) | 2023-02-09 | 2023-02-09 | Permanent magnet vacuum circuit breaker capable of prolonging service life of electric arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219553509U (en) |
-
2023
- 2023-02-09 CN CN202320170465.6U patent/CN219553509U/en active Active
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Address after: No. 25 Wangtian Road, Luoxi Town, Xinbei District, Changzhou City, Jiangsu Province, 213000 Patentee after: Changzhou Hanfeng Electric Power Co.,Ltd. Country or region after: China Address before: No. 11 Yingbin Road, Chuanying District, Jilin City, Jilin Province, 132001 Patentee before: Jilin Hanfeng Power Intelligent Technology Co.,Ltd. Country or region before: China |
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