Reclosing circuit breaker with high stability

Abstract

The utility model provides a reclosing circuit breaker with high stability, which comprises a circuit breaker base, a mounting cavity arranged in the circuit breaker base, a motor mounting groove arranged on one side in the mounting cavity, a support arranged on the other side in the mounting cavity, a motor arranged in the motor mounting groove, and a stabilizing plate arranged on the top of the motor. The two corners of one side of the stabilizing plate are fixedly connected with the mounting groove, the two corners of the other side of the stabilizing plate are both provided with inserting plates, an output shaft of the motor penetrates through the stabilizing plate and is provided with a first gear, one side of the first gear is meshed with a second gear, and the bottom end faces of the first gear and the second gear are both attached to the top end face of the stabilizing plate; inserting grooves are formed in the two sides of the end, close to the stabilizing plate, of the support. According to the reclosing circuit breaker operating mechanism, the stabilizing plate is arranged at the top of the motor, shaking and vibration phenomena during driving of the motor are avoided, the stabilizing plate is used for supporting the first gear and the second gear, shaking between the first gear and the second gear is avoided, and therefore the stability of the reclosing circuit breaker operating mechanism can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable ties, in particular to a reclosing circuit breaker with high stability. Background Art

[0002] Reclosing circuit breakers are essential electrical devices in power systems. When a fault in a power line causes excessive current, the circuit breaker quickly trips to disconnect the circuit, protecting the line and equipment from damage. The reclosing function automatically controls the circuit breaker to reclose within a certain period of time after tripping. If the fault is transient, such as a brief short circuit caused by lightning, reclosing can restore normal power to the line. However, if the fault is permanent, such as severe line damage, the circuit breaker will trip again after reclosing, preventing further damage to the system.

[0003] The motor and gear assembly within the operating mechanism of existing reclosing circuit breakers typically lack a supporting structure. This results in vibration and jitter during operation, reducing the accuracy and reliability of the reclosing operation. This can lead to inaccurate reclosing timing, preventing the closing operation from completing within the scheduled timeframe, and impacting power restoration. This can cause overall circuit breaker operation to become unstable, increasing the risk of unexpected tripping or closing failures. Jitter and vibration can cause abnormal friction and impact on the contact surfaces between the motor and gears, accelerating component wear. This shortens the service life of the motor and gears, increases the frequency of repairs and component replacements, and increases maintenance costs. Utility Model Content

[0004] The utility model provides a reclosing circuit breaker with high stability to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A reclosing circuit breaker with high stability includes a circuit breaker base, a mounting cavity is provided inside the circuit breaker base, a motor mounting slot is provided on one side of the mounting cavity, a bracket is provided on the other side of the mounting cavity, a motor is provided in the motor mounting slot, a stabilizing plate is provided on the top of the motor, two corners of one side of the stabilizing plate are fixedly connected to the mounting slot, and plug-in plates are provided on the two corners of the other side of the stabilizing plate, the output shaft of the motor passes through the stabilizing plate and is provided with a first gear, a second gear is meshed with one side of the first gear, the bottom end surfaces of the first gear and the second gear are both in contact with the top surface of the stabilizing plate, and plug-in slots are provided on both sides of one end of the bracket close to the stabilizing plate, and the plug-in plates are plugged into the plug-in slots.

[0007] Preferably, a transmission plate is provided on the top of the second gear, one side of the transmission plate is connected to a transmission arm, and the other end of the transmission arm is connected to an operating handle.

[0008] Preferably, a bottom plate is provided at the bottom of the bracket, a manual knob is movably provided on the bracket and the bottom plate, a third gear is provided on the manual knob, and the third gear is meshed with the second gear.

[0009] Preferably, a clutch ring is coaxially provided on the top of the first gear, and the inner wall of the clutch ring forms three arc surfaces, which are sequentially connected by radial sections. The motor output shaft is provided with a limit rod for radial movement, and a spring is provided on the limit rod, and one end of the limit rod abuts against the inner wall of the clutch ring.

[0010] Beneficial effects

[0011] The above one or more technical solutions in the high-stability reclosing circuit breaker provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] The utility model adopts the above technical solution, by providing a stabilizing plate on the top of the motor to support the motor, thereby avoiding jitter and vibration when the motor is driven, and improving the stability of the motor. The stabilizing plate supports the first gear and the second gear, thereby avoiding jitter and vibration between the first gear and the second gear, thereby effectively improving the stability of the operating mechanism in the reclosing circuit breaker, thereby ensuring the accuracy of the closing action and increasing the service life of the motor and the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the motor, stabilizing plate, and bracket structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the stabilizing plate of the utility model;

[0016] Figure 4 This is a schematic diagram of the support structure of the utility model.

[0017] The corresponding relationship between the illustration labels and component names in the figure is as follows:

[0018] 1. Circuit breaker base; 2. Mounting cavity; 3. Motor mounting slot; 4. Bracket; 5. Motor; 6. Stabilizing plate; 7. Plug-in plate; 8. First gear; 9. Second gear; 10. Plug-in slot; 11. Transmission plate; 12. Transmission arm; 13. Operating handle; 14. Bottom plate; 15. Manual knob; 16. Third gear; 17. Clutch ring; 18. Limit rod; 19. Spring. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-4 As shown, it is a structural schematic diagram of a reclosing circuit breaker with high stability in a preferred embodiment of the present invention;

[0023] In this embodiment, a circuit breaker base 1 is provided, wherein the circuit breaker base 1 is provided with a mounting cavity 2, and a motor mounting groove 3 is provided on one side of the mounting cavity 2. Screw holes are provided at the four corners of the top of the mounting groove. A bracket 4 is fixed on the other side of the mounting cavity 2 by screws. A motor 5 is embedded in the motor mounting groove 3, and a stabilizing plate 6 is fitted on the top of the motor 5. The two corners of one side of the stabilizing plate 6 are fixedly connected to the top of the mounting groove 3 by screws. The stabilizing plate 6 presses the motor 5 into the motor mounting groove 3, and the two corners of the other side of the stabilizing plate 6 are provided with a plug-in plate 7. The output shaft of the motor 5 is inserted through the stabilizing plate 6 and is provided with a first gear 8. The first gear 8 is movably connected to the output shaft of the motor 5. A second gear 9 is meshed with one side of the first gear 8, and the first gear 8 and the second gear 9 bottom end surfaces are all fitted with the top surface of the stabilizing plate 6, and lubricating oil is applied between the first gear 8 and the second gear 9 and the stabilizing plate 6. Both sides of the bracket 4 close to the end of the stabilizing plate 6 are provided with plug-in slots 10, and the plug-in plate 7 is plugged into the plug-in slot 10. A mortise and tenon structure is formed by the plug-in plate 7 and the plug-in slot 10 to provide support for one side of the stabilizing plate 6. The motor 5 is supported by the stabilizing plate 6 to avoid shaking and vibration when the motor 5 is driven, thereby improving the stability of the motor 5. The first gear 8 and the second gear 9 are supported by the stabilizing plate 6 to avoid shaking and vibration between the first gear 8 and the second gear 9, thereby effectively improving the stability of the operating mechanism in the reclosing circuit breaker, thereby ensuring the accuracy of the closing action and improving the service life of the motor 5 and the first gear 8 and the second gear 9.

[0024] In this embodiment, a transmission plate 11 is fixed to the top of the second gear 9 by screws. One side of the transmission plate 11 is rotatably connected to a transmission arm 12 through a pin shaft. The other end of the transmission arm 12 is connected to an operating handle 13. The second gear drives the transmission plate 11 to rotate coaxially, the transmission plate 11 drives the transmission arm 12 to move, and the transmission arm 12 drives the operating handle 13 to operate.

[0025] In this embodiment, a base plate 14 is provided at the bottom of the bracket 4, and a manual knob 15 is movably provided on the bracket 4 and the base plate 14. A third gear 16 is provided on the manual knob 15, and the third gear 16 is engaged with the second gear 9. By rotating the manual knob 15 clockwise or counterclockwise, the third gear 16 is driven to rotate clockwise or counterclockwise, and the rotation of the third gear 16 drives the second gear 9 to rotate.

[0026] In this embodiment, a clutch ring 17 is coaxially provided on the top of the first gear 8. The inner wall of the clutch ring 17 forms three arc surfaces, and the three arc surfaces are sequentially connected by radial sections. The output shaft of the motor 5 is provided with a limit rod 18 that moves radially. The limit rod 18 is provided with a spring 19. One end of the limit rod 18 abuts against the inner wall of the clutch ring 17. By rotating the manual knob 15 counterclockwise, the third gear 16 is driven to rotate. The third gear 16 drives the second gear 9 to rotate. The second gear 9 drives the first gear 8 to rotate. The first gear 8 drives the clutch ring 17 clockwise. As the gear shifts clockwise, the limit rod 18 is compressed inward along the arc surface of the inner wall of the clutch ring 17, allowing the clutch ring 17 to rotate smoothly without driving the output shaft of the motor 5. The operating handle 13 is then driven to move through the transmission plate 11 and the transmission arm 12. The output shaft of the motor 5 rotates clockwise, and the cross-section of the clutch ring 17 is blocked in the rotation direction of the limit rod 18. The limit rod 18 pushes the clutch ring 17 to rotate the first gear 8, and the first gear 8 drives the second gear 9 to rotate. The second gear 9 drives the transmission plate 11 to move, so that the transmission arm 12 drives the operating handle 13 to move.

[0027] The utility model provides a reclosing circuit breaker with high stability. Its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0028] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0029] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A reclosing circuit breaker with high stability, comprising a circuit breaker base (1), characterized in that: The circuit breaker base (1) is provided with an installation cavity (2) inside, a motor installation groove (3) is provided on one side inside the installation cavity (2), a bracket (4) is provided on the other side inside the installation cavity (2), a motor (5) is provided in the motor installation groove (3), a stabilizing plate (6) is provided on the top of the motor (5), two corners of one side of the stabilizing plate (6) are fixedly connected to the installation groove (3), two corners of the other side of the stabilizing plate (6) are provided with plug-in plates (7), the output shaft of the motor (5) is inserted through the stabilizing plate (6) and is provided with a first gear (8), a second gear (9) is provided on one side of the first gear (8), the bottom end surfaces of the first gear (8) and the second gear (9) are both in contact with the top end surface of the stabilizing plate (6), and plug-in grooves (10) are provided on both sides of one end of the bracket (4) close to the stabilizing plate (6), and the plug-in plate (7) is plugged into the plug-in groove (10).

2. A reclosing circuit breaker with high stability according to claim 1, characterized in that: A transmission plate (11) is provided on the top of the second gear (9), one side of the transmission plate (11) is connected to a transmission arm (12), and the other end of the transmission arm (12) is connected to an operating handle (13).

3. The reclosing circuit breaker with high stability according to claim 1, characterized in that: A bottom plate (14) is provided at the bottom of the bracket (4); a manual knob (15) is movably provided on the bracket (4) and the bottom plate (14); a third gear (16) is provided on the manual knob (15); and the third gear (16) is meshed with the second gear (9).

4. The reclosing circuit breaker with high stability according to claim 1, characterized in that: A clutch ring (17) is coaxially provided on the top of the first gear (8), and the inner wall of the clutch ring (17) forms three arc surfaces, which are sequentially connected by radial sections. The output shaft of the motor (5) is provided with a limit rod (18) movable in the radial direction, and a spring (19) is provided on the limit rod (18). One end of the limit rod (18) abuts against the inner wall of the clutch ring (17).

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