Plug-in actuators

Abstract

The utility model provides a kind of plug-in actuator, belong to the technical field of electric power overhaul auxiliary equipment, including navigation plug installation cover, circuit breaker plug-in mechanism and release locking mechanism, and quick-change tool is installed in navigation plug installation cover;Circuit breaker plug-in mechanism includes electric clamp jaw and a pair of clamping jaw;Electric clamp jaw is installed in navigation plug installation cover, and clamping jaw extends out navigation plug installation cover and is clamped circuit breaker by the drive of electric clamp jaw;Release locking mechanism includes first direction moving component, second direction moving component and release locking knob;Release locking knob includes release locking body and the release locking lever and locking lever of being arranged in the both ends of release locking body along first direction.Release locking lever and locking lever are respectively arranged in the release locking knob of the utility model, can be switched between unlocking and locking, and release locking lever and locking lever all do not need to back dial, so that release locking action is more coherent, it is favorable to realize the quick unlocking and locking of circuit breaker, also favorable to promote the plug-in efficiency of circuit breaker.

Description

Technical Field

[0001] This utility model belongs to the technical field of power maintenance auxiliary equipment, and specifically relates to a plug-in actuator. Background Technology

[0002] Switchgear requires regular inspection, maintenance, replacement, repair, and testing. Circuit breakers need to be removed from the switchgear, inspected, and tested before being reinserted. When inserting or removing circuit breakers, the switch lever must be unlocked before the circuit breaker can be removed. After the circuit breaker is inserted into place, the switch lever must be locked to secure the circuit breaker.

[0003] The currently used plug-in actuator requires a lever to be repeatedly moved back and forth when locking and unlocking the circuit breaker's locking lever, which is inconvenient to operate and has room for further optimization. Utility Model Content

[0004] This utility model provides a plug-in actuator, which aims to simplify the operation process of plugging and unplugging circuit breakers and realize the rapid plugging and unplugging of circuit breakers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a plug-in actuator, including: a plug mounting cover, a circuit breaker plug-in mechanism, and a locking / unlocking mechanism, wherein the plug mounting cover is equipped with a quick-change tool; The circuit breaker insertion and removal mechanism includes an electric gripper and a pair of clamping claws; the electric gripper is installed inside the aircraft plug mounting cover, and the clamping claws extend outside the aircraft plug mounting cover and clamp the circuit breaker by means of the electric gripper's drive. The unlocking / locking mechanism includes a first direction moving component, a second direction moving component, and an unlocking / locking dial; the first direction moving component is installed inside the aviation plug mounting cover; the second direction moving component is driven by the first direction moving component to drive the unlocking / locking dial installed on the second direction moving component, and simultaneously moves along the first and second directions to move the locking lever of the circuit breaker to unlock or lock. The unlocking / locking lever includes an unlocking body and an unlocking lever and a locking lever disposed at both ends of the unlocking body along the first direction; wherein, the first direction is parallel to the reciprocating movement direction of the clamping claw, and the second direction is perpendicular to the first direction.

[0006] In one possible implementation, the first directional movement assembly includes a first drive motor mounted inside the mounting cover, a lead screw connected to the main shaft of the first drive motor, a movable nut threadedly connected to the lead screw, and an anti-rotation structure to prevent the movable nut from rotating; supports are provided at both ends of the lead screw; and the second directional movement assembly is mounted on the movable nut.

[0007] In one possible implementation, the anti-rotation structure includes a first guide rail mounted inside the aircraft insert mounting cover and a first slider slidably fitted on the first guide rail, with the movable nut mounted on the first slider.

[0008] In one possible implementation, the second directional movement component includes a second guide rail mounted on the movable nut, a sliding lever slidably engaged with the second guide rail, and a roller mounted on the sliding lever; a guide plate is installed inside the mounting cover, and the guide plate is provided with a track hole for limiting the movement trajectory of the roller; the unlocking / locking head is installed at one end of the sliding lever that extends out of the mounting cover.

[0009] In one possible implementation, the unlocking lever and the locking lever have a length difference along the second direction; wherein the length of the unlocking lever is greater than the length of the locking lever.

[0010] In one possible implementation, the unlocking lever is provided with an unlocking hook that protrudes toward the locking lever.

[0011] In one possible implementation, a camera facing the clamping claw and the unlocking dial is also mounted on the mounting cover, and a bracket supporting the camera is installed inside the mounting cover.

[0012] In one possible implementation, at least one of the clamping claws has a pressure sensor disposed on its inner side.

[0013] In one possible implementation, the inner surface of the clamping claw is provided with anti-slip texture.

[0014] In one possible implementation, the aircraft mounting cover includes a separate upper cover and a lower cover, the upper cover and the lower cover being fixed together by bolts.

[0015] Compared with the prior art that uses a lever to move the locking lever back and forth to unlock and lock, the plug-in / plug-out actuator provided by this utility model has the following advantages: The unlocking / locking lever of this application is equipped with an unlocking lever and a locking lever. The locking lever is specifically used to move the locking lever of the circuit breaker, causing the locking lever to rotate and lock. The unlocking lever is used to move the locking lever of the circuit breaker in the opposite direction, causing the locking lever to rotate and unlock. Thus, during the unlocking / locking operation, the locking lever of the circuit breaker is between the unlocking lever and the locking lever. The unlocking / locking lever moves back and forth along the first direction with the first direction moving component, which can switch between unlocking and locking without adjusting the position of the unlocking / locking lever. Neither the unlocking lever nor the locking lever needs to be turned back, making the unlocking / locking action simpler, smoother, and more continuous. This is conducive to the rapid unlocking and locking of the circuit breaker, and also helps to improve the plug-in / plug-out efficiency of the circuit breaker. It is also more conducive to the operation of the robotic arm.

[0016] Compared with the existing technology of lever rotation, this application also improves the action of the unlocking / locking lever. It mainly uses a first direction moving component and a second direction moving component in the vertical direction to drive the unlocking lever to make linear motion in two directions along the first and second directions. The unlocking lever does not need to rotate. This linear motion makes the unlocking lever work more reliably when unlocking and locking, and changing the existing rotational motion to linear motion also simplifies the structure. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the plug-in actuator provided in the embodiment of this utility model. Figure 1 ; Figure 2 A three-dimensional structural diagram of the plug-in actuator provided in the embodiment of this utility model. Figure 2 (Show camera location); Figure 3 A front view structural diagram of the unlocked state of the plug-in actuator provided in an embodiment of this utility model; Figure 4 A front view structural diagram of the locked state of the plug-in actuator provided in an embodiment of this utility model; Figure 5 A three-dimensional structural diagram of the internal structure of the plug-in actuator provided for an embodiment of the present utility model (showing the guidance of the sliding lever); Figure 6 A three-dimensional structural diagram of the internal structure of the plug-in actuator provided in this embodiment of the utility model. Figure 1 (Showing the first direction movement component and the second direction movement component); Figure 7 A three-dimensional structural diagram of the internal structure of the plug-in actuator provided in this embodiment of the utility model. Figure 2 (Showing the first-direction movement component and the second-direction movement component from different perspectives); Figure 8 A three-dimensional structural diagram of the internal structure of the plug-in actuator provided in an embodiment of the present utility model (showing the second direction movement component); Explanation of reference numerals in the attached figures: 1. Aircraft plug mounting cover; 2. Electric gripper; 3. Clamping claw; 4. Pressure sensor; 5. Anti-slip texture; 6. Unlock lever; 7. Unlock hook; 8. Sliding lever; 9. Locking lever; 10. Quick change tool; 11. Camera; 12. Guide plate; 13. Roller; 14. Fixing frame; 15. First drive motor; 16. First slider; 17. Support; 18. First guide rail; 19. Lead screw; 20. Second guide rail; 21. Moving nut; 22. Locking rod; 23. Locking pin. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please see Figures 1 to 8 The insertion / removal actuator provided by this utility model will now be described. The insertion / removal actuator includes an aircraft plug mounting cover 1, a circuit breaker insertion / removal mechanism, and a locking / unlocking mechanism. The aircraft plug mounting cover 1 is equipped with a quick-change tool 10. The circuit breaker insertion / removal mechanism includes an electric gripper 2 and a pair of clamping grippers 3. The electric gripper 2 is installed inside the aircraft plug mounting cover 1, and the clamping grippers 3 extend outside the aircraft plug mounting cover 1 and clamp the circuit breaker by the drive of the electric gripper 2. The locking / unlocking mechanism includes a first direction moving component, a second direction moving component, and a locking / unlocking dial. The first direction moving component is installed inside the aircraft plug mounting cover 1. The second direction moving component is driven by the first direction moving component, which drives the locking / unlocking dial installed on the second direction moving component to move simultaneously along the first and second directions, thereby unlocking or locking the circuit breaker's locking lever 22.

[0020] The unlocking / locking lever includes an unlocking body and an unlocking lever 6 and a locking lever 9 disposed at both ends of the unlocking body along a first direction; wherein, the first direction is parallel to the reciprocating movement direction of the clamping claw 3, and the second direction is perpendicular to the first direction.

[0021] Compared with the prior art that uses a lever to move the locking lever 22 back and forth to unlock and lock, the plug-in / plug-out actuator provided by this utility model has the following advantages: The unlocking / locking lever of this application is respectively equipped with an unlocking lever 6 and a locking lever 9. The locking lever 9 is specifically used to move the locking lever 22 of the circuit breaker, causing the locking lever 22 to rotate and lock. The unlocking lever 6 is used to move the locking lever 22 of the circuit breaker in the opposite direction, causing the locking lever 22 to rotate and unlock. Thus, during the unlocking / locking operation, the locking lever 22 of the circuit breaker is between the unlocking lever 6 and the locking lever 9. The unlocking / locking lever moves back and forth along the first direction with the first direction moving component, which can realize the switching between unlocking and locking. There is no need to adjust the position of the unlocking / locking lever. Neither the unlocking lever 6 nor the locking lever 9 needs to be turned back, making the unlocking / locking action simpler, smoother, and more continuous. This is conducive to the rapid unlocking and locking of the circuit breaker, and also helps to improve the plug-in / plug-out efficiency of the circuit breaker. It is also more conducive to the operation of the robotic arm.

[0022] Compared with the prior art, this application also improves the operation of the unlocking dial. It mainly uses a first direction moving component and a second direction moving component in the vertical direction to drive the unlocking dial to make linear movements in two directions along the first and second directions. The unlocking dial does not need to rotate. This linear movement makes the unlocking dial work more reliably when unlocking and locking, and changing the existing rotational movement to linear movement also simplifies the structure.

[0023] The electric gripper 2 used in this application, also known as a pneumatic finger, only needs to have two fingers. The clamping claw 3 consists of two bent parts, which are fixed to the two fingers of the pneumatic finger by bolts and move in opposite directions with the fingers. The appropriate model of pneumatic finger can be purchased directly.

[0024] When a circuit breaker needs maintenance, first open the switch cabinet door. The maintenance robot's robotic arm connects to the quick-change tool 10. Then, by operating the maintenance robot, the insertion / removal actuator approaches the circuit breaker inside the cabinet. First, the electric gripper 2 drives a pair of clamping jaws 3 to open. When the clamping jaws 3 are positioned on both sides of the circuit breaker, the electric gripper 2 drives the clamping jaws 3 to clamp the circuit breaker. The movement of the first and second direction moving components drives the unlocking lever 6 to move the locking lever 22, causing the locking jaws of the locking lever 22 to disengage from the locking pin 23 inside the switch cabinet. At this point, by moving the robotic arm backward, the circuit breaker can be removed. (See [link to documentation]). Figure 3 As shown.

[0025] When the circuit breaker needs to be installed after maintenance, the clamping claw 3 holds the circuit breaker and inserts it into the mounting position inside the cabinet. Then, the movement of the first and second direction moving components drives the locking lever 9 to move the locking lever 22, causing the locking jaw of the locking lever 22 to lock the locking pin 23, thus locking the circuit breaker. See [link to relevant documentation]. Figure 4 As shown.

[0026] In some embodiments, see Figures 5 to 8 As shown, the first directional moving assembly includes a first drive motor 15 installed inside the mounting cover 1, a lead screw 19 connected to the main shaft of the first drive motor 15, a movable nut 21 threadedly connected to the lead screw 19, and an anti-rotation structure to prevent the movable nut 21 from rotating; supports 17 are provided at both ends of the lead screw 19; the second directional moving assembly is installed on the movable nut 21. The first drive motor 15 drives the lead screw 19 to rotate, causing the movable nut 21 to move linearly, thereby realizing the position change of the locking lever 22 when unlocking or locking.

[0027] The lead screw 19 is coaxially connected to the main shaft of the first drive motor 15 via a coupling; both ends of the lead screw 19 are rotatably mounted on the support 17 via bearings, and the support 17 is fixed inside the aircraft plug mounting cover 1. An anti-rotation structure is installed inside the aircraft plug mounting cover 1 to prevent the moving nut 21 from rotating and to ensure that the moving nut 21 moves linearly along the lead screw 19.

[0028] In some embodiments, see Figures 5 to 8 As shown, the anti-rotation structure includes a first guide rail 18 installed inside the mounting cover 1 and a first slider 16 slidably fitted on the first guide rail 18. A movable nut 21 is mounted on the first slider 16. The anti-rotation structure uses a guide rail and slider cooperation method to provide support for the smooth movement of the movable nut 21.

[0029] The first guide rail 18 and the first slider 16 can be selected according to suitable models or specifications and can be purchased without the need for self-manufacturing, making the assembly of the entire plug-in actuator convenient.

[0030] Optionally, the anti-rotation structure only includes a grooved block with a sliding groove, which is fixed inside the aviation plug mounting cover 1 to ensure that the moving nut 21 moves back and forth in the first direction.

[0031] In some embodiments, see Figures 5 to 8 As shown, the second directional moving assembly includes a second guide rail 20 mounted on the moving nut 21, a sliding lever 8 that slides with the second guide rail 20, and a roller 13 mounted on the sliding lever 8. A guide plate 12 is installed inside the mounting cover 1, and the guide plate 12 is provided with a track hole for limiting the movement trajectory of the roller 13. An unlocking / locking dial is installed at the end of the sliding lever 8 that extends out of the mounting cover 1. Rollers are fitted onto the roller 13, and the rollers roll with the track hole to reduce frictional resistance and improve the smoothness of operation.

[0032] The second direction moving component drives the sliding lever 8 to move along the second direction via the second drive motor. At the same time, the movement of the sliding lever 8 is restricted by the track hole via the roller 13, thereby realizing the rotation unlocking and locking of the locking lever 22.

[0033] Optionally, the second directional movement component can also be a gear and rack structure. For example, a gear is provided in the second guide rail 20, and a rack that meshes with the gear is provided on the sliding lever 8. The gear is driven to rotate by a second motor, which in turn drives the rack to reciprocate.

[0034] In some embodiments, see Figures 3 to 4As shown, the unlocking lever 6 and the locking lever 9 have a length difference along the second direction; wherein the length of the unlocking lever 6 is greater than the length of the locking lever 9. During unlocking and locking, the unlocking lever 6 and the locking lever 9 can always be located on opposite sides of the locking lever 22. The length difference between the unlocking lever 6 and the locking lever 9 avoids interference with the locking lever 22 or the circuit breaker during the unlocking and locking transitions.

[0035] In some embodiments, see Figures 1 to 8 As shown, the unlocking lever 6 is equipped with an unlocking hook 7 that protrudes upwards towards the locking lever 9. The unlocking hook 7 can form a line contact with the locking lever 22. By reducing the contact area between the unlocking lever 6 and the locking lever 22, the force is concentrated, thereby achieving the unlocking action more efficiently, reducing the operating force required for unlocking, improving the convenience and smoothness of unlocking, and also reducing wear that may be caused by a large contact area, extending the service life of related components, and improving the reliability and stability of the entire unlocking mechanism.

[0036] In some embodiments, see Figure 2 , Figures 5 to 8 As shown, a camera 11 facing the clamping claw 3 and the unlocking / locking lever is also installed on the mounting cover 1. A bracket 14 supporting the camera 11 is installed inside the mounting cover 1. The camera 11 can clearly capture the working status of the clamping claw 3 and the unlocking / locking lever, which allows the staff to observe in real time whether the relevant operations are accurate and correct, promptly identify potential problems and make adjustments, effectively improve the accuracy and stability of the mounting, reduce failures and safety hazards caused by improper operation, and ensure the reliable operation of the entire system.

[0037] In some embodiments, see Figure 1 As shown, at least one clamping jaw 3 has a pressure sensor 4 installed on its inner surface. The pressure sensor 4 allows for real-time monitoring of the pressure between the clamping jaw 3 and the clamped object during operation. When the pressure reaches a set appropriate value, it ensures the object is securely clamped, preventing it from slipping due to insufficient clamping force and avoiding damage to the circuit breaker due to excessive pressure. An alarm system can be interlocked via the pressure sensor 4. If the pressure exceeds or falls below the normal range, the system can react promptly, such as issuing an alarm to prompt the operator to adjust the clamping force, thereby effectively improving the accuracy and stability of the clamping operation.

[0038] It should be noted that using pressure sensor 4 to detect pressure values ​​and feed them back to the robot's controller, and then issuing an alarm, is a conventional technical method for maintenance robots and is not an invention of this application. This application will not elaborate on the control part.

[0039] In some embodiments, see Figure 1As shown, the inner surface of the clamping claw 3 is provided with anti-slip texture 5. Since the outer surface of the circuit breaker is a smooth surface, it is easy for the circuit breaker to slip off if it is not clamped securely. The anti-slip texture 5 on the inner surface of the clamping claw 3 can significantly enhance the friction between the clamping claw 3 and the surface of the clamped object, thereby ensuring that the clamped object can be firmly fixed between the clamping claws 3 during the clamping operation, and is not prone to slippage or displacement, avoiding the risk of the circuit breaker being damaged due to slippage.

[0040] In some embodiments, see Figures 1 to 7 As shown, the aircraft plug mounting cover 1 includes a separate upper cover and a lower cover, which are fixed together by bolts. This separate design and bolt-fixed method has many advantages. First, it facilitates the installation and removal of the aircraft plug mounting cover 1. In actual use, if it is necessary to inspect, maintain, or replace parts of the aircraft plug, simply unscrewing the bolts allows for easy separation of the upper and lower covers, enabling direct access to the aircraft plug without complicated operations, greatly improving maintenance efficiency and reducing downtime. Second, this structural design makes the manufacturing of the aircraft plug mounting cover 1 more flexible. The upper and lower covers can be designed and manufactured separately according to different usage scenarios and needs, and then combined with bolts, better meeting diverse application requirements.

[0041] Meanwhile, the bolt fixing method ensures the stability of the connection between the upper and lower covers, effectively protecting the aircraft plug from interference and damage from the external environment, and ensuring that the aircraft plug can work stably and reliably under various harsh conditions.

[0042] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug-in actuator, characterized in that, include: The aircraft plug mounting cover (1) is equipped with a quick-change tool (10); The circuit breaker insertion and removal mechanism includes an electric gripper (2) and a pair of clamping claws (3); the electric gripper (2) is installed inside the aircraft insertion mounting cover (1), and the clamping claws (3) extend outside the aircraft insertion mounting cover (1) and clamp the circuit breaker by the drive of the electric gripper (2); as well as The unlocking and locking mechanism includes a first direction moving component, a second direction moving component, and an unlocking dial; the first direction moving component is installed inside the aviation plug mounting cover (1); the second direction moving component is driven by the first direction moving component to drive the unlocking dial installed on the second direction moving component, and moves along the first direction and the second direction at the same time to move the locking lever (22) of the circuit breaker to unlock or lock; The unlocking / locking lever includes an unlocking body and an unlocking lever (6) and a locking lever (9) disposed at both ends of the unlocking body along the first direction; wherein, the first direction is parallel to the reciprocating movement direction of the clamping claw (3), and the second direction is perpendicular to the first direction.

2. The plug-in actuator as described in claim 1, characterized in that, The first directional moving assembly includes a first drive motor (15) installed inside the aircraft plug mounting cover (1), a lead screw (19) connected to the main shaft of the first drive motor (15), a movable nut (21) threadedly connected to the lead screw (19), and an anti-rotation structure to prevent the movable nut (21) from rotating; the two ends of the lead screw (19) are provided with supports (17); the second directional moving assembly is installed on the movable nut (21).

3. The plug-in actuator as described in claim 2, characterized in that, The anti-rotation structure includes a first guide rail (18) installed inside the aircraft plug mounting cover (1) and a first slider (16) slidably fitted on the first guide rail (18), and the movable nut (21) is installed on the first slider (16).

4. The plug-in actuator as described in claim 2, characterized in that, The second directional moving component includes a second guide rail (20) mounted on the moving nut (21), a sliding lever (8) that slides with the second guide rail (20), and a roller (13) mounted on the sliding lever (8); a guide plate (12) is installed inside the aircraft plug mounting cover (1), and a track hole is provided on the guide plate (12) to limit the movement trajectory of the roller (13); the unlocking dial is installed at one end of the sliding lever (8) that extends out of the aircraft plug mounting cover (1).

5. The plug-in actuator as described in claim 1, characterized in that, The unlocking lever (6) and the locking lever (9) have a length difference along the second direction; wherein the length of the unlocking lever (6) is greater than the length of the locking lever (9).

6. The plug-in actuator as claimed in claim 1, characterized in that, The unlocking lever (6) is provided with an unlocking hook (7) that protrudes toward the locking lever (9).

7. The plug-in actuator as claimed in claim 1, characterized in that, The mounting cover (1) is also equipped with a camera (11) facing the clamping claw (3) and the unlocking dial, and a mounting bracket (14) supporting the camera (11) is installed inside the mounting cover (1).

8. The plug-in actuator as claimed in claim 1, characterized in that, At least one of the clamping claws (3) has a pressure sensor (4) provided on its inner side.

9. The plug-in actuator as claimed in claim 1, characterized in that, The inner surface of the clamping claw (3) is provided with anti-slip texture (5).

10. The plug-in actuator as claimed in claim 1, characterized in that, The aircraft mounting cover (1) includes a separate upper cover and a lower cover, which are fixed together by bolts.

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