Automatic execution device of circuit breaker

Abstract

The utility model discloses an automatic execution device of a circuit breaker, and belongs to the technical field of circuit breaker accessories. The actuator comprises an actuator shell, an intelligent circuit board, a power panel, a driving motor, a gearbox, a driving turntable, a driving block and a guide mechanism, the intelligent circuit board controls starting, stopping, steering and rotating speed of the driving motor, the driving motor drives the driving turntable to rotate through the gearbox, the driving rollers on the outer side of the driving turntable are matched with the upper and lower driving steps of the driving block, and the driving block is driven to linearly reciprocate along the guide mechanism through eccentric motion. The device can automatically drive a circuit breaker operation handle to complete opening and closing actions, manual intervention is not needed, and automatic operation and maintenance are achieved; transmission is stable and accurate, and offset clamping stagnation and misoperation are avoided; the structure is simple and compact, installation and maintenance are convenient, adaptability is high, operation safety and efficiency are effectively improved, and stable operation of a power system is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit breaker accessories, specifically to an automatic actuator for a circuit breaker. Background Technology

[0002] As a critical protection and control component in power systems, the reliability of circuit breaker opening and closing operations directly affects the safe and stable operation of the power system. Traditional circuit breakers mostly rely on manual operation of their handles for opening and closing. This method is not only inefficient, but also poses safety hazards in high-voltage, high-risk, and other special power operation environments due to direct intervention by operators, failing to meet the development needs of automated and unmanned operation and maintenance of power systems.

[0003] To address the aforementioned issues, some automatic circuit breaker actuators have been developed in the existing technology. However, these devices generally suffer from drawbacks such as complex structure, poor transmission stability, and low adaptability. They are unable to accurately and stably drive the circuit breaker operating handle to complete reciprocating opening and closing actions, and some devices lack sufficient control precision, making them prone to malfunctions and affecting the operational safety of the power system. Therefore, developing an automatic circuit breaker actuator with a simple structure, stable transmission, and precise control has become an urgent technical problem to be solved in the current power equipment field. Utility Model Content

[0004] To address the shortcomings in the prior art, this utility model provides an automatic execution device for a circuit breaker.

[0005] The technical solution adopted by this utility model is: an automatic execution device for a circuit breaker, including an actuator housing, an intelligent circuit board, a power board, a drive motor, a gearbox, a drive turntable, a drive block, and a guide mechanism;

[0006] The intelligent circuit board is electrically connected to the drive motor and is used to control the start, stop, direction and speed of the drive motor;

[0007] The output shaft of the drive motor is connected to the input end of the gearbox, and the output end of the gearbox is connected to the drive turntable;

[0008] The outer side of the drive turntable is rotatably connected to a drive roller, and the drive block is provided with an upper drive step and a lower drive step that are adapted to the drive roller.

[0009] When the drive turntable rotates, the drive turntable drives the drive block to reciprocate linearly along the guide mechanism through eccentric motion.

[0010] Furthermore, the guiding mechanism includes a guide rod fixed on the base of the actuator housing and a guide step integrally formed on one side of the base. One side of the drive block is provided with a sliding hole that slides with the guide rod and a sliding groove that slides with the guide step.

[0011] Furthermore, the drive block is provided with a glove hole.

[0012] Furthermore, the cross-sections of the guide steps and the grooves are adapted semi-circular structures.

[0013] Furthermore, the bottom of the base of the actuator housing is provided with a connection hole.

[0014] Furthermore, the actuator housing includes a cover and the aforementioned base, with through fixing holes provided at the four corners of the base and the cover.

[0015] Furthermore, the base has connecting plates at both ends on one side, and connecting slots are provided on the connecting plates, into which the smart circuit board is inserted.

[0016] The beneficial effects of this utility model are:

[0017] 1. Achieve automated opening and closing, improving operational safety and efficiency: This device controls the start, stop, direction, and speed of the drive motor through an intelligent circuit board. In conjunction with the transmission cooperation of the drive turntable, drive block, and guide mechanism, it can drive the circuit breaker operating handle to automatically complete the opening and closing reciprocating motion without manual intervention, greatly improving the operating efficiency of the circuit breaker and meeting the needs of automated and unmanned operation and maintenance of the power system.

[0018] 2. Stable and reliable transmission with high operational precision: This device adopts a transmission structure of drive motor and gearbox, which can achieve precise control of speed and torque; at the same time, the drive turntable is adapted to the upper and lower drive steps of the drive block through drive rollers, and the guide mechanism guides and limits the linear movement of the drive block, effectively avoiding the problems of offset and jamming in the transmission process, ensuring the accuracy of the drive block driving the circuit breaker operating handle, reducing the probability of misoperation, and ensuring the safe operation of the power system.

[0019] 3. Simple and reasonable structure with strong adaptability: The device is assembled from core components such as actuator housing, intelligent circuit board, and power board in a modular manner, with a simple and compact structure that is easy to install and maintain; and through the direct connection design between the drive block and the circuit breaker operating handle, it can be adapted to the operating requirements of various types of circuit breakers, making it widely applicable.

[0020] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the application of this utility model in conjunction with a circuit breaker.

[0023] Figure 2 This is an exploded view of the present invention.

[0024] Figure 3 This is a schematic diagram of the drive block and drive turntable.

[0025] Figure 4 This is a schematic diagram of the base structure.

[0026] Figure 5 This is a schematic diagram of the drive block.

[0027] Figure 1-5 In the middle: 1. Actuator housing; 2. Intelligent circuit board; 3. Power board; 4. Drive motor; 5. Gearbox; 6. Drive turntable; 7. Drive block; 8. Drive roller; 9. Upper drive step; 10. Lower drive step; 11. Guide rod; 12. Guide step; 13. Sliding hole; 14. Handle hole; 15. Connection hole; 16. Cover; 17. Base; 18. Fixing hole; 19. Connecting plate; 20. Connecting groove; 21. Sliding groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] This utility model provides an automatic execution device for a circuit breaker.

[0031] In this embodiment, refer to Figure 1-5 The automatic actuator of the circuit breaker includes an actuator housing 1, an intelligent circuit board 2, a power supply board 3, a drive motor 4, a gearbox 5, a drive turntable 6, a drive block 7, and a guide mechanism.

[0032] The intelligent circuit board is electrically connected to the drive motor and is used to control the start, stop, direction and speed of the drive motor;

[0033] The output shaft of the drive motor is connected to the input end of the gearbox, and the output end (output gear) of the gearbox is connected to the drive turntable;

[0034] The outer side of the drive turntable is rotatably connected to a drive roller 8, and the drive block is provided with an upper drive step 9 and a lower drive step 10 adapted to the drive roller 8.

[0035] When the drive turntable rotates, the drive turntable drives the drive block to reciprocate linearly along the guide mechanism through eccentric motion.

[0036] In the above technical solution, the intelligent circuit board serves as the control core, establishing an electrical connection with the drive motor to regulate its start, stop, direction, and speed. The power output from the drive motor is transmitted to the drive turntable after speed and torque matching via a gearbox, completing the power conversion. The drive rollers on the outer side of the drive turntable are matched with the upper and lower drive steps of the drive block, and the eccentric motion generated by the rotation of the drive turntable is used to convert the circular motion into the linear motion of the drive block. At the same time, the guide mechanism limits and guides the motion trajectory of the drive block, ultimately achieving stable linear reciprocating motion of the drive block along the guide mechanism. After the drive block is connected to the operating handle of the circuit breaker, it drives the operating handle of the circuit breaker to complete the opening and closing actions.

[0037] The design of the drive rollers and the upper and lower drive steps reduces friction loss during transmission, improves transmission efficiency and extends the service life of the device; the limiting function of the guide mechanism ensures the stability of the linear motion of the drive block, avoids movement deviation and jamming, ensures the precise movement trajectory of the circuit breaker operating handle, and improves the reliability of device operation; the overall structure realizes complete replacement of manual operation, is suitable for special working environments such as high voltage and high risk, and meets the needs of automated operation and maintenance of power systems.

[0038] Specifically, the guiding mechanism includes a guide rod 11 fixed on the base of the actuator housing and a guide step 12 integrally formed on one side of the base. The drive block is provided with a sliding hole 13 that slides with the guide rod 11 and a sliding groove 21 that slides with the guide step on one side.

[0039] In this embodiment, the guide rod is fixed to the base of the actuator housing, and the drive block slides with the guide rod through a sliding hole to achieve linear guidance along the axial direction of the guide rod. Simultaneously, an integrally formed guide step on one side of the base slides with the groove of the drive block, further limiting the movement direction of the drive block. This dual-guide structure ensures that the drive block can only perform linear reciprocating motion in a set direction. This improves the stability and accuracy of the drive block's movement, avoids the wobbling and offset problems that may occur with a single guide structure, and ensures the smoothness of the transmission process.

[0040] Specifically, the drive block is provided with a glove hole 14.

[0041] In this embodiment, a handle glove hole is provided on the drive block to provide an adapter structure for connecting the drive block and the circuit breaker's operating handle. In use, the circuit breaker's operating handle is directly inserted into the handle glove hole, achieving a quick positioning connection between the drive block and the operating handle, allowing the linear reciprocating motion of the drive block to be directly and efficiently transmitted to the operating handle.

[0042] Specifically, the cross-sections of the guide step and the slide 21 are adapted semi-circular structures.

[0043] In this embodiment, the cross-sections of the guide step and the slide groove are designed as matching semi-circular structures, with the arc-shaped surface of the semi-circular structure forming a close-fitting sliding fit. Compared to other cross-sectional structures, the contact area of ​​the semi-circular structure is more reasonable, and the force is more evenly distributed during sliding, which can reduce sliding resistance.

[0044] Specifically, the bottom of the base of the actuator housing is provided with a connection hole 15.

[0045] In this embodiment, a connection hole is provided at the bottom of the base of the actuator housing, so that the handle of the circuit breaker can be inserted into the actuator housing and connected to the handle hole of the drive block.

[0046] Specifically, the actuator housing includes a cover 16 and the aforementioned base 17, with through fixing holes 18 provided at the four corners of the base and the cover.

[0047] In this embodiment, the actuator housing is disassembled into a cover and a base to form a detachable assembly structure; at the same time, through fixing holes are provided at the four corners of the base and the cover, and fasteners such as bolts pass through the through fixing holes and are fixed to the corresponding fixing holes on the circuit breaker housing.

[0048] Specifically, the base has connecting plates 19 at both ends on one side, and connecting slots 20 are provided on the connecting plates 19, into which the smart circuit board is inserted.

[0049] In this embodiment, connecting plates with connecting grooves are provided at both ends on one side of the base. The connecting grooves are used to limit the connection, and the smart circuit board is installed in the connecting grooves by plugging in, so as to achieve quick positioning and fixation of the smart circuit board and the base.

[0050] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. An automatic execution device of a circuit breaker, characterized by: The actuator shell, the intelligent circuit board, the power board, the driving motor, the gear box, the driving turntable, the driving block and the guide mechanism are included. The intelligent circuit board is electrically connected with the driving motor, and is used for controlling start-stop, steering and rotating speed of the driving motor. The output shaft of the driving motor is connected with the input end of the gear box, and the output end of the gear box is connected with the driving turntable. The outer side of the driving turntable is rotationally connected with the driving roller, and the driving block is provided with the upper driving step and the lower driving step matched with the driving roller. When the driving turntable rotates, the driving turntable drives the driving block to do linear reciprocating motion along the guide mechanism through eccentric motion.

2. The automatic circuit breaker execution device according to claim 1, characterized in that: The guide mechanism includes the guide rod fixed on the base of the actuator shell and the guide step integrally formed on one side of the base, and one side of the driving block is provided with the sliding hole matched with the guide rod and the sliding slot matched with the guide step.

3. The automatic circuit breaker execution device according to claim 1, characterized in that: The driving block is provided with the handle sleeve hole.

4. The automatic circuit breaker execution device according to claim 2, characterized by: The guide step and the sliding slot are matched with the semicircular structure in section.

5. The automatic circuit breaker operating device according to claim 2, wherein: The base of the actuator shell is provided with the connecting hole at the bottom.

6. The automatic circuit breaker execution device according to claim 5, wherein: The actuator shell includes the cover and the base, and the base and the cover are provided with the fixed holes penetrating through the four corners.

7. The automatic circuit breaker operating device according to claim 2, wherein: The base is provided with the connecting plates at two ends of one side, and the connecting plates are provided with the connecting slots. The intelligent circuit board is inserted into the connecting slots.

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