A high-voltage sulfur hexafluoride circuit breaker drive structure

Abstract

The application discloses a high-voltage sulfur hexafluoride circuit breaker driving structure, which comprises a body, three ceramic arc extinguishing chambers are fixedly connected to the upper end of the body, a distribution box is fixedly connected to the middle position of the bottom end of the body, mounting seats are bolt-connected to the inner bottom end of the ceramic arc extinguishing chambers, and separation guide rods are slidably connected to the inner bottom end of the mounting seats. In the application, the intelligent clutching of the energy storage motor driving and the transmission shaft is realized through the separator structure, the connection with the energy storage motor is automatically disconnected during the opening of the circuit, and the resistance problem caused by the reverse rotation of the motor rotor in the traditional structure is completely avoided, so that the opening speed and the action reliability are remarkably improved, the current can be rapidly cut off during the power grid failure, the energy storage motor has the automatic energy storage and the manual operation dual modes, the remote control and the on-site manual emergency operation can be realized, the applicability and the emergency processing capacity of the equipment under different working conditions are greatly improved, and the application is especially suitable for guaranteeing the system stability under the conditions of no electricity or failure.

Description

Technical Field

[0001] This invention relates to the field of high-voltage electrical equipment technology, and in particular to a high-voltage sulfur hexafluoride circuit breaker drive structure. Background Technology

[0002] High-voltage sulfur hexafluoride (SF6) circuit breakers are indispensable key protection devices in modern power systems, undertaking the important functions of power distribution, fault isolation, and ensuring power grid safety. Due to its excellent insulation properties and outstanding arc-extinguishing ability, sulfur hexafluoride (SF6) gas is widely used in high-voltage circuit breaker design. This gas makes SF6 circuit breakers significantly superior to compressed air circuit breakers and oil-limited circuit breakers in terms of single-break voltage and current parameters, while not requiring high gas pressure and an excessive number of series breaks.

[0003] As a core component of high-voltage sulfur hexafluoride circuit breakers, the drive structure directly affects the circuit breaker's breaking capacity, response speed, and operational reliability. An excellent drive structure design can ensure that the circuit breaker operates quickly when a fault occurs in the power grid, interrupting the fault current in a very short time, thereby preventing the accident from escalating and ensuring the stable operation of the entire power system.

[0004] Traditional driving methods primarily rely on the elastic potential energy of the trip spring to drive the moving contact to complete the tripping operation. This often requires manual energy storage for closing. Some drive structures use a motor for energy storage, but after the motor has finished driving the closing operation, it cannot disconnect from the drive shaft. This causes the drive shaft to rotate the motor rotor during tripping, slowing down the tripping speed. To address these issues, a new high-voltage sulfur hexafluoride circuit breaker drive structure is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-voltage sulfur hexafluoride circuit breaker drive structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-voltage sulfur hexafluoride circuit breaker drive structure, comprising a body, three ceramic arc-extinguishing chambers fixedly connected to the upper end of the body, a distribution box fixedly connected to the middle position of the bottom end of the body, mounting seats bolted to the bottom of the ceramic arc-extinguishing chambers, separation guide rods slidably connected to each mounting seat, racks fixedly connected to the right side of the bottom end of each separation guide rod, a reducer disposed on the left side of the rear end of the distribution box, an energy storage motor fixedly connected to the left side of the rear end of the distribution box, a separator disposed in front of the reducer, a first fixed frame fixedly connected to the left side of the distribution box in front of the separator, a first rotating shaft rotatably connected to the first fixed frame, a manual adjuster fixedly connected to the front end of the first rotating shaft, a rack fixedly connected to the rear end of the first rotating shaft, a second fixed frame fixedly connected to the right side of the distribution box, a third fixed frame fixedly connected to the bottom end of the second fixed frame, a fourth fixed frame fixedly connected to the left side of the second fixed frame, and a proximity sensor fixedly connected to the front side of the fourth fixed frame;

[0007] An energy storage component, which is mounted on a second fixed frame, is used to store the elastic potential energy of the circuit breaker being opened;

[0008] A transmission assembly, located inside the machine body, is used to transmit power from the energy storage assembly to drive the rack and pinion to move up and down.

[0009] A locking assembly is disposed on the front side of the upper end of the third fixing frame and is used to limit the energy storage assembly.

[0010] Furthermore, the reducer includes a first housing bolted to the body, a gear ring fixedly connected to the inner wall of the first housing, a central gear fixedly connected to the output end of the energy storage motor through the rear wall of the first housing, a planetary carrier provided on the front side inside the first housing, and three connecting shafts circumferentially distributed at the rear end of the planetary carrier, with planetary gears rotatably connected to each of the three connecting shafts, and the planetary gears meshing with the central gear and the gear ring.

[0011] Furthermore, the separator includes a second housing, an active turntable, and a driven turntable. The second housing is bolted to the front of the first housing. The center of the rear side of the active turntable is fixedly connected to the front end of the planetary carrier's central shaft. A first friction ring is fixedly connected to the front of the active turntable. Three first connecting plates are fixedly connected to the circumference of the inner wall of the second housing. Insert rods are slidably connected to the three first connecting plates. A second connecting plate is fixedly connected to the front end of each insert rod. A pawl is fixedly connected to the inner side of each second connecting plate. A first iron block is fixedly connected to the rear end of each insert rod. A first electromagnet is fixedly connected to the rear side of the second housing at a position corresponding to the first iron block. A bearing is provided on the side of the driven turntable. The pawl is bolted to the outer ring of the bearing. A second friction ring is fixedly connected to the rear side of the driven turntable. A first end cap is bolted to the front of the second housing. A first return spring is fixedly connected between the front side of the second connecting plate and the rear side of the first end cap. A through hole is opened at the center of the driven turntable. Several toothed grooves are opened inside the through hole. A toothed rod is inserted into the through hole and slidably connected to the toothed grooves.

[0012] Furthermore, the energy storage component includes a sliding rod and an energy storage spring. The sliding rod is slidably connected to the second fixed frame. The energy storage spring is sleeved and connected to the outside of the sliding rod, and the left and right ends of the energy storage spring are respectively fixedly connected to the right side of the second fixed frame and the right end of the sliding rod. A second connecting seat is fixedly connected to the right end of the sliding rod. The second connecting seat has an L-shaped structure. A locking block is fixedly connected to the left side of the bottom end of the second connecting seat. Both sides of the locking block are chamfered. A detection body is fixedly connected to the left end of the second connecting seat at the position corresponding to the proximity sensor. A first crank is fixedly connected to the first rotating shaft. A first connecting rod is hinged to the first crank. A first connecting seat is fixedly connected to one end of the first connecting rod. The first connecting seat is hinged to the left end of the sliding rod.

[0013] Furthermore, the transmission assembly includes a second rotating shaft and three third rotating shafts. The third rotating shafts are rotatably connected inside the machine body, located below the separation guide rod. The second rotating shafts are rotatably connected inside the machine body near the center. A first gear is fixedly connected to the center of each second rotating shaft. A second crank is fixedly connected to the first gear. A second connecting rod is hinged to the second crank. One end of the second connecting rod is hinged to the upper right end of the second connecting seat. Each of the third rotating shafts has a second gear fixedly connected to its center position. Each second gear meshes with a corresponding rack. The first gear meshes with the second gear located in the center. A third crank is fixedly connected to the rear side of each of the third rotating shafts. A third connecting rod is provided between the third cranks, and each third connecting rod is hinged to one of the multiple third cranks.

[0014] Furthermore, the locking assembly includes a third housing fixedly connected to a third fixing frame. A second end cap is bolted to the upper end of the third housing. A locking rod is slidably connected to the middle of the second end cap. The upper end of the locking rod has a tapered structure. A second iron block is fixedly connected to the bottom end of the locking rod. A second return spring is fixedly connected to the outer ring of the bottom end of the second iron block. The bottom end of the second return spring is fixedly connected to the bottom end of the third housing. A second electromagnet is fixedly connected to the middle of the bottom end of the third housing. A lever is fixedly connected to the side of the locking rod.

[0015] Furthermore, a second retaining ring is fixedly connected to the left side of the sliding rod, a first retaining ring is fixedly connected to the outer side of the separation guide rod, and a buffer block is fixedly connected to the inner wall of the machine body at the position to the right of the second connecting seat.

[0016] Furthermore, inspection covers are bolted to both the left and right sides of the machine body, and support feet are bolted to both the left and right sides of the bottom of the machine body. A cover is hinged to the front of the distribution box, and an operation panel is provided on the front of the cover.

[0017] The beneficial effects of this invention are:

[0018] 1. Fast tripping response and high reliability: The intelligent engagement and disengagement of the energy storage motor drive and the transmission shaft is achieved through the separator structure. When tripping, the connection with the energy storage motor is automatically disconnected, which completely avoids the resistance problem caused by the reverse rotation of the motor rotor in the traditional structure. This significantly improves the tripping speed and reliability, and ensures that the current can be quickly cut off in the event of a grid fault.

[0019] 2. Dual-mode operation with strong adaptability: It has dual modes of automatic energy storage and manual operation of the energy storage motor. It can be remotely controlled or manually operated on-site in case of emergency, which greatly enhances the applicability and emergency handling capability of the equipment under different working conditions. It is especially suitable for ensuring system stability in the absence of power or in case of failure.

[0020] 3. Compact transmission structure and stable torque output: The reducer adopts a planetary gear structure, which is compact, has a large transmission ratio, and outputs stable torque, ensuring a stable and reliable energy storage process. Combined with the crank connecting rod and multi-gear transmission mechanism, the power transmission efficiency is high and the action is coordinated and consistent.

[0021] 4. Reliable locking and safe structure: The locking assembly adopts a dual-insurance structure of electromagnetic control and mechanical reset. The conical surface of the locking rod and the chamfered design of the locking block make smooth cooperation. The locking and unlocking actions are sensitive and reliable, ensuring that the closed state remains stable and preventing malfunctions.

[0022] 5. Well-designed detection and buffer structure with long service life: It is equipped with a proximity sensor to detect the energy storage status in real time. Combined with mechanical limit and buffer devices such as retaining rings and buffer blocks, it effectively reduces motion impact and wear, extends the life of key components, and reduces maintenance frequency and cost.

[0023] 6. Modular design for easy maintenance: The overall structure is reasonably laid out, and the distribution box and inspection cover are designed to be openable, which facilitates daily inspection, maintenance and parts replacement, improving the maintainability and engineering applicability of the equipment. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an isometric view of the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0027] Figure 3 This is a three-dimensional schematic diagram of the invention from the rear.

[0028] Figure 4 This is a schematic diagram of the energy storage spring of the present invention during compression;

[0029] Figure 5 This is a schematic diagram of the energy storage spring of the present invention when it is released.

[0030] Figure 6 This is a schematic diagram showing the cooperation between the reducer and the separator of the present invention;

[0031] Figure 7 This is a schematic diagram of the engagement of the central gear and planetary gears in this invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the second housing of the present invention;

[0033] Figure 9 This is a schematic diagram showing the cooperation between the active turntable and the first friction ring of the present invention;

[0034] Figure 10 This is a schematic diagram of the planetary carrier structure of the present invention;

[0035] Figure 11 This is a schematic diagram of the installation of the second friction ring of the present invention;

[0036] Figure 12This is a schematic diagram of the structure of the second friction ring of the present invention;

[0037] Figure 13 This is a schematic diagram of the structure of the first end cap of the present invention;

[0038] Figure 14 This is a schematic diagram of the locking component structure of the present invention.

[0039] The attached figures are labeled as follows:

[0040] 1. Body; 2. Inspection cover; 3. Support feet; 4. Ceramic arc-extinguishing chamber; 5. Distribution box; 6. Box cover; 7. Reducer; 8. Separator; 9. First fixed frame; 10. First rotating shaft; 11. First crank; 12. Manual adjuster; 13. First connecting rod; 14. First connecting seat; 15. Second fixed frame; 16. Sliding rod; 17. Energy storage spring; 18. Buffer block; 19. Second connecting seat; 20. Third fixed frame; 21. Locking assembly; 22. Second connecting rod; 23. Second rotating shaft; 24. First gear; 25. Second crank; 26. Third rotating shaft; 27. Second gear; 28. Third crank; 29. ​​Third connecting rod; 30. Mounting seat; 31. Separation guide rod; 32. First retaining ring; 33. Rack; 34. Energy storage motor; 35. 1. First housing; 36. Gear ring; 37. Central gear; 38. Planetary gear; 39. Planetary carrier; 40. Driving turntable; 41. First friction ring; 42. Second retaining ring; 43. Locking block; 44. Detector; 45. Connecting shaft; 46. Second housing; 47. First connecting plate; 48. First electromagnet; 49. First iron block; 50. Driven turntable; 51. Second connecting plate; 52. Pad; 53. First return spring; 54. Insert rod; 55. First end cover; 56. Second friction ring; 57. Gear rack; 58. Tooth groove; 59. Bearing; 60. Third housing; 61. Second end cover; 62. Locking rod; 63. Second iron block; 64. Second return spring; 65. Second electromagnet; 66. Lever; 67. Fourth fixing frame; 68. Proximity sensor. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0042] A high-voltage sulfur hexafluoride circuit breaker drive structure includes a body 1. Three ceramic arc-extinguishing chambers 4 are fixedly connected to the upper end of the body 1. A distribution box 5 is fixedly connected to the middle of the bottom end of the body 1. Mounting seats 30 are bolted to the bottom of the ceramic arc-extinguishing chambers 4. Separation guide rods 31 are slidably connected vertically inside each mounting seat 30. Racks 33 are fixedly connected to the right side of the bottom end of each separation guide rod 31. A reducer 7 is located on the left side of the rear end inside the distribution box 5. An energy storage motor 34 is fixedly connected to the left side of the rear end outside the distribution box 5. A separator is located in front of the reducer 7. 8. Inside the distribution box 5, on the left side, in front of the separator 8, a first fixed frame 9 is fixedly connected. A first rotating shaft 10 is rotatably connected to the first fixed frame 9. A manual adjuster 12 is fixedly connected to the front end of the first rotating shaft 10. A gear 57 is fixedly connected to the rear end of the first rotating shaft 10. Inside the distribution box 5, on the right side, a second fixed frame 15 is fixedly connected. A third fixed frame 20 is fixedly connected to the bottom end of the second fixed frame 15. A fourth fixed frame 67 is fixedly connected to the left side of the second fixed frame 15. A proximity sensor 68 is fixedly connected to the front of the fourth fixed frame 67.

[0043] An energy storage component is mounted on the second fixed frame 15 and is used to store the elastic potential energy of the circuit breaker being tripped.

[0044] The transmission component is located inside the body 1 and is used to transmit the power of the energy storage component to drive the rack 33 to move up and down.

[0045] Locking component 21 is disposed on the front side of the upper end of the third fixing frame 20 and is used to limit the energy storage component.

[0046] In this embodiment, as Figure 1-5 As shown, the basic components of the high-voltage sulfur hexafluoride circuit breaker drive structure are provided, including a body 1, with three ceramic arc-extinguishing chambers 4 fixedly connected to its upper end. A distribution box 5 is fixedly connected to the middle of the bottom end of the body 1. Inside the ceramic arc-extinguishing chamber 4, the bottom end is bolted to a sliding separation guide rod 31. A rack 33 fixedly connected to the right side of its bottom end provides an interface for transmission. The reducer 7 located on the left side of the rear end of the distribution box 5 and the energy storage motor 34 at the rear end of the outer side constitute the power input. The separator 8 on the front side of the reducer 7 realizes power transmission and separation. The first rotating shaft 10 rotatably connected to the first fixed frame 9 and the manual adjuster 12 at its front end provide a manual operation path. Inside the right side of the distribution box 5, the energy storage component, the locking component 21 and the proximity sensor 68 are supported by the second fixed frame 15, the third fixed frame 20 and the fourth fixed frame 67, respectively, forming a complete drive and control system foundation. Example 2

[0047] The reducer 7 includes a first housing 35 bolted to the body 1. A gear ring 36 is fixedly connected to the inner wall of the first housing 35. A central gear 37 is fixedly connected to the output end of the energy storage motor 34 through the rear wall of the first housing 35. A planetary carrier 39 is provided on the front side inside the first housing 35. Three connecting shafts 45 are distributed circumferentially at the rear end of the planetary carrier 39. Planetary gears 38 are rotatably connected to each of the three connecting shafts 45. The planetary gears 38 are meshed with the central gear 37 and the gear ring 36.

[0048] The separator 8 includes a second housing 46, a driving disc 40, and a driven disc 50. The second housing 46 is bolted to the front of the first housing 35. The center of the rear side of the driving disc 40 is fixedly connected to the front end of the central shaft of the planetary carrier 39. A first friction ring 41 is fixedly connected to the front side of the driving disc 40. Three first connecting plates 47 are fixedly connected to the inner circumference of the second housing 46. Insert rods 54 are slidably connected to each of the three first connecting plates 47. A second connecting plate 51 is fixedly connected to the front end of each insert rod 54. A pawl 52 is fixedly connected to the inner side of each second connecting plate 51. A first iron block 4 is fixedly connected to the rear end of each insert rod 54. 9. The rear side of the second housing 46 is fixedly connected to the first electromagnet 48 at the position corresponding to the first iron block 49. The side of the driven turntable 50 is provided with a bearing 59. The pawl 52 is bolted to the outer ring of the bearing 59. The rear side of the driven turntable 50 is fixedly connected to a second friction ring 56. The front side of the second housing 46 is bolted to a first end cover 55. The front side of the second connecting plate 51 and the rear side of the first end cover 55 are both fixedly connected to a first return spring 53. A through hole is opened at the center of the driven turntable 50. Several toothed grooves 58 are opened inside the through hole. The toothed rod 57 is inserted into the through hole and slidably connected to the toothed grooves 58.

[0049] In this embodiment, as Figure 4-13As shown, the deceleration and separation mechanism is described in detail. The reducer 7 includes a first housing 35 bolted to the body 1, with a gear ring 36 fixed to its inner wall. The central gear 37 connected to the output end of the energy storage motor 34 meshes with the planetary gear 38, which in turn meshes with the gear ring 36, forming a planetary reduction mechanism to achieve high torque output. The planetary carrier 39 supports the planetary gear 38 and outputs power through a connecting shaft 45. The second housing 46 of the separator 8 is connected to the front side of the first housing 35. The driving turntable 40 is fixed to the front end of the central shaft of the planetary carrier 39, and its front first friction ring 41 can contact the second friction ring 56 on the rear side of the driven turntable 50 to transmit power. The three first... The connecting plate 47 is fixed to the inner wall of the second housing 46. The front end of the slidable insert rod 54 is connected to the claw 52 through the second connecting plate 51. The first iron block 49 at the rear end can act with the first electromagnet 48. The outer ring of the bearing 59 on the side of the driven turntable 50 is bolted to the claw 52. The toothed groove 58 in the central through hole slides with the toothed rod 57. When the first electromagnet 48 is energized, it attracts the first iron block 49, which drives the insert rod 54 and the claw 52 to move backward. The first friction ring 41 contacts the second friction ring 56, so that the active turntable 40 can drive the driven turntable 50 to rotate. After the power is cut off, the first return spring 53 pulls the second connecting plate 51 to reset, so that the power transmission is disconnected. Example 3

[0050] The energy storage component includes a sliding rod 16 and an energy storage spring 17. The sliding rod 16 is slidably connected to the second fixed frame 15. The energy storage spring 17 is sleeved and connected to the outside of the sliding rod 16, and the left and right ends of the energy storage spring 17 are respectively fixedly connected to the right side of the second fixed frame 15 and the right end of the sliding rod 16. The right end of the sliding rod 16 is fixedly connected to a second connecting seat 19, which has an L-shaped structure. A locking block 43 is fixedly connected to the left side of the bottom end of the second connecting seat 19. Both sides of the locking block 43 are chamfered. The left end of the second connecting seat 19 is fixedly connected to a detection body 44 at a position corresponding to the proximity sensor 68. A first crank 11 is fixedly connected to the first rotating shaft 10. A first connecting rod 13 is hinged to the first crank 11. One end of the first connecting rod 13 is fixedly connected to a first connecting seat 14, which is hinged to the left end of the sliding rod 16.

[0051] The transmission assembly includes a second rotating shaft 23 and a third rotating shaft 26. There are three third rotating shafts 26, which are rotatably connected inside the body 1 below the separation guide rod 31. The second rotating shafts 23 are rotatably connected inside the body 1 near the middle. A first gear 24 is fixedly connected to the middle position of the second rotating shaft 23. A second crank 25 is fixedly connected to the first gear 24. A second connecting rod 22 is hinged to the second crank 25. One end of the second connecting rod 22 is hinged to the upper right end of the second connecting seat 19. A second gear 27 is fixedly connected to the middle position of each of the third rotating shafts 26. Each second gear 27 is meshed with a corresponding rack 33. The first gear 24 is meshed with the second gear 27 located in the middle. A third crank 28 is fixedly connected to the rear side of each of the third rotating shafts 26. A third connecting rod 29 is provided between the third cranks 28. The third connecting rod 29 is hinged to each of the third cranks 28.

[0052] The locking assembly 21 includes a third housing 60 fixedly connected to the third fixing frame 20. A second end cover 61 is bolted to the upper end of the third housing 60. A locking rod 62 is slidably connected to the middle of the second end cover 61. The upper end of the locking rod 62 has a tapered structure. A second iron block 63 is fixedly connected to the bottom end of the locking rod 62. A second return spring 64 is fixedly connected to the outer ring of the bottom end of the second iron block 63. The bottom end of the second return spring 64 is fixedly connected to the bottom end of the third housing 60. A second electromagnet 65 is fixedly connected to the middle of the bottom end of the third housing 60. A lever 66 is fixedly connected to the side of the locking rod 62.

[0053] In this embodiment, as Figure 4-14As shown, the focus is on the core components of energy storage, transmission, and locking. The energy storage component includes a sliding rod 16 slidably connected to the second fixed frame 15 and an energy storage spring 17 sleeved on it. The two ends of the spring are fixed to the right side of the second fixed frame 15 and the right end of the sliding rod 16, respectively. The left side of the bottom of the L-shaped second connecting seat 19 fixed to the right end of the sliding rod 16 is provided with a chamfered locking block 43. The detection body 44 at its left end cooperates with the proximity sensor 68 to detect the energy storage position. The first crank 11 on the first rotating shaft 10 is hinged to the first connecting rod 13, which is hinged to the left end of the sliding rod 16 through the first connecting seat 14, converting the rotational motion into linear motion to compress the energy storage spring for energy storage. The transmission component includes a second rotating shaft 23 and three third rotating shafts 26. The first gear 24 on the second rotating shaft 23 is fixed to the second crank 25. The second connecting rod 22 hinged to the second crank 25 is connected to the second connecting rod 26. The upper right end of the connector 19 is hinged. The second gear 27 on the third rotating shaft 26 meshes with the rack 33. The middle second gear 27 meshes with the first gear 24. The third crank 28 on the rear side of the third rotating shaft 26 is hinged through the third connecting rod 29 to ensure three-stage linkage synchronization. The locking assembly 21 includes the third housing 60 and the second end cover 61 bolted to its upper end. The upper end of the locking rod 62 that slides up and down in the middle of the second end cover 61 is tapered, and the lower end is connected to the second iron block 63. The second return spring 64 connects the second iron block 63 to the bottom of the third housing 60. The second electromagnet 65 is fixed in the middle of the bottom of the third housing 60. The lever 66 on the side of the locking rod 62 can be used for manual operation. When the power is off, the second return spring 64 pushes the locking rod 62 to move up and lock. When the second electromagnet 65 is energized, it attracts the second iron block 63 to move the locking rod 62 down and unlock. Example 4

[0054] A second retaining ring 42 is fixedly connected to the left side of the sliding rod 16, a first retaining ring 32 is fixedly connected to the outer side of the separation guide rod 31, and a buffer block 18 is fixedly connected to the inner wall of the body 1 at the position to the right of the second connecting seat 19.

[0055] The left and right sides of the machine body 1 are bolted with inspection covers 2, and the left and right sides of the bottom of the machine body 1 are bolted with support feet 3. The front of the distribution box 5 is hinged with a box cover 6, and an operation panel is set on the front of the box cover 6.

[0056] In this embodiment, as Figure 4 and Figure 6 As shown, the protective and auxiliary structures are improved. The second retaining ring 42 is fixed on the left side of the sliding rod 16, and the first retaining ring 32 is fixed on the outside of the separation guide rod 31 for mechanical limiting. The buffer block 18 is fixed on the inner wall of the body 1 to the right side of the second connecting seat 19 to absorb the impact energy at the end of the circuit breaker. The maintenance cover 2 bolted on the left and right sides of the body 1 facilitates internal maintenance. The support feet 3 bolted on the left and right sides of the bottom ensure installation stability. The box cover 6 hinged on the front side of the distribution box 5 and its front operation panel facilitate operation and status monitoring.

[0057] The overall working principle of this invention is as follows:

[0058] Automatic energy storage, locking, and closing phase: The energy storage motor 34 is started, and its output shaft drives the central gear 37 to rotate, which in turn drives the planetary gear 38 meshing with it to revolve within the fixed gear ring 36. This drives the planetary carrier 39 to rotate at low speed and high torque. The planetary carrier 39 drives the active turntable 40 and its first friction ring 41 to rotate. At this time, the first electromagnet 48 is energized to generate magnetic force, attracting the first iron block 49 at the rear end of the insertion rod 54. This causes the insertion rod 54 to slide backward against the elastic force of the first return spring 53, causing the second connecting plate 51 and the pawl 52 at the front end to move backward. The pawl 52 pushes the outer ring of the bearing 59 on the side of the driven turntable 50, so that the first friction ring 41 contacts the second friction ring 56. This causes the driven turntable 50 and its second friction ring 56 to rotate together with the active turntable 40. When the driven turntable 50 rotates, the tooth groove 58 in its central through hole engages with it. The rack 57 rotates, which drives the first rotating shaft 10 to rotate. The first crank 11, fixed on the first rotating shaft 10, rotates accordingly. The first connecting rod 13, which is hinged, pulls the first connecting seat 14 and the sliding rod 16 to move linearly to the left. The sliding rod 16 moves to the right to compress the energy storage spring 17 and stores its elastic potential energy. When the sliding rod 16 moves to the left limit position, the detection body 44, which is fixed on the second connecting seat 19 at its right end, approaches the proximity sensor 68 on the fourth fixed frame 67. The proximity sensor 68 sends a signal, and the control system cuts off the power supply to the energy storage motor 34 and the first electromagnet 48. After the first electromagnet 48 loses its magnetism, the first reset spring 53 pulls the second connecting plate 51 and the insertion rod 54 to reset, so that the first friction ring 41 and the second friction ring 56 are separated, the power connection between the active turntable 40 and the driven turntable 50 is disconnected, and the energy storage process ends.

[0059] During the leftward movement of the second connecting seat 19, the locking block 43 at its bottom end moves accordingly. When the circuit is closed, the inclined surface of the locking block 43 contacts the upper conical surface of the locking rod 62 in the locking assembly 21, squeezing the locking rod 62 downward. The locking rod 62 drives the second iron block 63 at its lower end to compress the second return spring 64 and move downward. When the locking block 43 passes the top of the locking rod 62, the second return spring 64 drives the locking rod 62 upward, thereby locking the locking block 43 and preventing the second connecting seat 19 and the sliding rod 16 from moving to the right under the residual force of the energy storage spring 17, thus reliably maintaining the closed state.

[0060] The second connecting rod 22, hinged to the upper right end of the second connecting seat 19, is pushed, causing the second crank 25 and the second rotating shaft 23 to rotate. The first gear 24, which is fixed to the second rotating shaft 23, rotates accordingly, driving the intermediate second gear 27 meshing with it to rotate. The second gear 27 drives its third rotating shaft 26 to rotate, and through the third crank 28 and the third connecting rod 29 at the rear end, the other two third rotating shafts 26 rotate synchronously. The second gears 27 on all the third rotating shafts 26 rotate synchronously, driving the three racks 33 meshing with them and the separation guide rod 31 fixed on them to move upward, realizing the engagement of the moving and stationary contacts and completing the closing action.

[0061] Manual energy storage, locking, and closing stages: When manually closing, the first electromagnet 48 is de-energized. The operator uses a manual tool to rotate the manual regulator 12, which directly drives the first rotating shaft 10 to rotate. The subsequent actions are similar to those of automatic energy storage.

[0062] Automatic tripping stage: When the system malfunctions and tripping is required, the control system issues a tripping command, connects the power supply to the second electromagnet 65, the second electromagnet 65 generates magnetic force, magnetically attracts the second iron block 63, compresses the second reset spring 64, pulls the second iron block 63 and the locking rod 62 downward, the upper end of the locking rod 62 is released from the restriction of the locking block 43, the elastic potential energy stored in the energy storage spring 17 is rapidly released, pushing the sliding rod 16 and the second connecting seat 19 to move rapidly to the right, through a series of transmissions such as the second connecting rod 22, the second crank 25, the first gear 24, and the second gear 27, finally driving the three racks 33 and the separation guide rod 31 to move rapidly downward, realizing the separation of the moving and stationary contacts, and completing the tripping. At the end of the tripping, the second connecting seat 19 hits the buffer block 18 on the inner wall of the body 1, the second retaining ring 42 on the left end of the sliding rod 16 and the first retaining ring 32 on the separation guide rod 31 both play the role of limiting and buffering, absorbing the remaining kinetic energy, stopping smoothly, and preventing damage to the mechanism;

[0063] Manual emergency tripping operation: If a power outage or control system failure occurs and electric operation is not possible, the box cover 6 can be opened and the lever 66 can be manually pressed down. This will compress the second reset spring 64, pull the second iron block 63 and the locking lever 62 downward, and the upper end of the locking lever 62 will disengage from the locking block 43. The elastic potential energy stored in the energy storage spring 17 will be released quickly, thereby completing the manual tripping operation.

[0064] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-voltage sulfur hexafluoride circuit breaker drive structure, comprising a body (1), characterized in that: Three ceramic arc-extinguishing chambers (4) are fixedly connected to the upper end of the body (1). A distribution box (5) is fixedly connected to the middle position of the bottom end of the body (1). A mounting base (30) is bolted to the bottom of the ceramic arc-extinguishing chamber (4). A separation guide rod (31) is slidably connected to the inside of each mounting base (30). A rack (33) is fixedly connected to the right side of the bottom end of each separation guide rod (31). A reducer (7) is set on the left side of the rear end inside the distribution box (5). An energy storage motor (34) is fixedly connected to the left side of the rear end outside the distribution box (5). A separator (8) is set on the front side of the reducer (7). The inside of the distribution box (5) A first fixed frame (9) is fixedly connected to the left side in front of the separator (8). A first rotating shaft (10) is rotatably connected to the first fixed frame (9). A manual adjuster (12) is fixedly connected to the front end of the first rotating shaft (10). A gear (57) is fixedly connected to the rear end of the first rotating shaft (10). A second fixed frame (15) is fixedly connected to the right side inside the distribution box (5). A third fixed frame (20) is fixedly connected to the bottom end of the second fixed frame (15). A fourth fixed frame (67) is fixedly connected to the left side of the second fixed frame (15). A proximity sensor (68) is fixedly connected to the front side of the fourth fixed frame (67). An energy storage component is mounted on a second fixed frame (15) for storing the elastic potential energy of the circuit breaker being opened; The transmission component is located inside the body (1) and is used to transmit the power of the energy storage component to drive the rack (33) to move up and down. Locking component (21), which is disposed on the front side of the upper end of the third fixing frame (20) and is used to limit the energy storage component; The reducer (7) includes a first housing (35) bolted to the body (1), a gear ring (36) fixedly connected to the inner wall of the first housing (35), a central gear (37) fixedly connected to the output end of the energy storage motor (34) through the rear wall of the first housing (35), a planetary carrier (39) is provided on the front side inside the first housing (35), and three connecting shafts (45) are circumferentially distributed at the rear end of the planetary carrier (39). Planetary gears (38) are rotatably connected to the three connecting shafts (45), and the planetary gears (38) are meshed with the central gear (37) and the gear ring (36). The separator (8) includes a second housing (46), an active turntable (40), and a driven turntable (50). The second housing (46) is bolted to the front side of the first housing (35). The center of the rear side of the active turntable (40) is fixedly connected to the front end of the central shaft of the planetary carrier (39). A first friction ring (41) is fixedly connected to the front side of the active turntable (40). Three first connecting plates (47) are fixedly connected to the inner circumference of the second housing (46). Insert rods (54) are slidably connected to the three first connecting plates (47). The front end of each insert rod (54) is fixedly connected to a second connecting plate (51). A claw (52) is fixedly connected to the inner side of each second connecting plate (51). A first iron block (52) is fixedly connected to the rear end of each insert rod (54). 49), the second housing (46) is fixedly connected to the rear side of the interior of the first iron block (49) with a first electromagnet (48) at the position corresponding to the first iron block (49). The driven turntable (50) is provided with a bearing (59) on the side. The pawl (52) is bolted to the outer ring of the bearing (59). The driven turntable (50) is fixedly connected to the rear side with a second friction ring (56). The second housing (46) is bolted to the front side with a first end cap (55). The front side of the second connecting plate (51) and the rear side of the first end cap (55) are fixedly connected with a first reset spring (53). The driven turntable (50) has a through hole at the center position. The through hole has several tooth grooves (58). The toothed rod (57) is inserted into the through hole and slides back and forth with the tooth grooves (58).

2. The high-voltage sulfur hexafluoride circuit breaker drive structure according to claim 1, characterized in that: The energy storage component includes a sliding rod (16) and an energy storage spring (17). The sliding rod (16) is slidably connected to the second fixed frame (15). The energy storage spring (17) is sleeved and connected to the outside of the sliding rod (16), and the left and right ends of the energy storage spring (17) are fixedly connected to the right side of the second fixed frame (15) and the right end of the sliding rod (16), respectively. The right end of the sliding rod (16) is fixedly connected to a second connecting seat (19). The second connecting seat (19) has an L-shaped structure, and the bottom left side of the second connecting seat (19) is fixed. A locking block (43) is connected, and both sides of the locking block (43) are chamfered. A detection body (44) is fixedly connected to the left end of the second connecting seat (19) at the position corresponding to the proximity sensor (68). A first crank (11) is fixedly connected to the first rotating shaft (10). A first connecting rod (13) is hinged to the first crank (11). A first connecting seat (14) is fixedly connected to one end of the first connecting rod (13). The first connecting seat (14) is hinged to the left end of the sliding rod (16).

3. The high-voltage sulfur hexafluoride circuit breaker drive structure according to claim 2, characterized in that: The transmission assembly includes a second rotating shaft (23) and a third rotating shaft (26). There are three third rotating shafts (26), rotatably connected inside the body (1) below the separation guide rod (31). The second rotating shaft (23) is rotatably connected inside the body (1) near the center. A first gear (24) is fixedly connected to the center of the second rotating shaft (23). A second crank (25) is fixedly connected to the first gear (24). A second connecting rod (22) is hinged to the second crank (25). 2) One end is hinged to the upper right end of the second connecting seat (19). The middle position of the third rotating shaft (26) is fixedly connected to the second gear (27). The second gear (27) is meshed with the corresponding rack (33). The first gear (24) is meshed with the second gear (27) located in the middle. The rear side of the third rotating shaft (26) is fixedly connected to the third crank (28). The third connecting rod (29) is provided between the third cranks (28). The third connecting rod (29) is hinged to the multiple third cranks (28).

4. The high-voltage sulfur hexafluoride circuit breaker drive structure according to claim 3, characterized in that: The locking assembly (21) includes a third housing (60) fixedly connected to the third fixing frame (20). The upper end of the third housing (60) is bolted to a second end cap (61). A locking rod (62) is slidably connected to the middle position of the second end cap (61). The upper end of the locking rod (62) is tapered. A second iron block (63) is fixedly connected to the bottom end of the locking rod (62). A second return spring (64) is fixedly connected to the outer ring of the bottom end of the second iron block (63). The bottom end of the second return spring (64) is fixedly connected to the bottom end of the third housing (60). A second electromagnet (65) is fixedly connected to the middle position of the bottom end of the third housing (60). A lever (66) is fixedly connected to the side of the locking rod (62).

5. The high-voltage sulfur hexafluoride circuit breaker drive structure according to claim 4, characterized in that: The sliding rod (16) is fixedly connected to the left side of the second retaining ring (42), the separation guide rod (31) is fixedly connected to the outer side of the first retaining ring (32), and the inner wall of the body (1) is fixedly connected to the buffer block (18) at the position to the right of the second connecting seat (19).

6. The high-voltage sulfur hexafluoride circuit breaker drive structure according to claim 5, characterized in that: The machine body (1) is bolted with inspection covers (2) on both the left and right sides. The machine body (1) is bolted with support feet (3) on both the left and right sides at the bottom. The distribution box (5) is hinged with a box cover (6) on the front side. The box cover (6) is equipped with an operation panel on the front side.

Images