Circuit breaker calibration device

Abstract

The utility model relates to the technical field of equipment installation and adjustment, and discloses a circuit breaker calibration device. The circuit breaker comprises a first conductor and a second conductor which are arranged at an interval along a first direction, the first conductor is provided with a plurality of mounting holes, and the second conductor is provided with a plurality of fasteners. The circuit breaker calibration device comprises a base and a support arranged on the base, the base can extend into the position between a first conductor and a second conductor in the second direction and is attached to the side face, close to the first conductor, of the second conductor, calibration grooves in one-to-one correspondence with a plurality of fasteners are formed in the base, and the fasteners can be embedded into the corresponding calibration grooves; the two sides, in the third direction, of the support can be attached to the side face of the first conductor, calibration holes in one-to-one correspondence with the multiple installation holes are formed in the support, and the calibration holes can be aligned with the corresponding installation holes. The circuit breaker calibration device can ensure the production precision of the circuit breaker, ensure the accuracy of connection between the circuit breaker and the cabinet body, and improve the production standard of the switch cabinet and the safety and reliability of operation.

Description

Technical Field

[0001] This utility model belongs to the field of equipment installation and adjustment technology, and in particular relates to a circuit breaker calibration device. Background Technology

[0002] Circuit breakers are crucial protective devices in switchgear, possessing the ability to actively interrupt current. When a circuit encounters overload, short circuit, or other abnormal conditions, the circuit breaker can quickly and reliably interrupt the current, effectively preventing the spread of faults, ensuring the integrity of power equipment and lines, and protecting the safety of operators. In existing technology, circuit breakers are mainly installed by being pushed into the predetermined position in the switchgear using a trolley mechanism. However, for highly sealed equipment such as 40.5kV switchgear, which is filled with insulating gas, conventional trolley pushing methods are unsuitable. In this case, the circuit breaker needs to be directly and tightly connected to the metal casing of the switchgear using bolts or other fastening methods.

[0003] During the installation of circuit breakers in high-sealing switchgear, the enclosed nature of the cabinet's internal structure makes it difficult for workers to directly observe the connection between the circuit breaker's conductive parts and the cabinet. This not only increases the difficulty of installation but also makes it impossible to ensure the accuracy of the installation. Insufficient installation accuracy can lead to the switchgear failing to meet factory standards, resulting in rework and increased production costs. It can also cause uneven stress on the conductive parts of the circuit breaker, thereby threatening the safe and reliable operation of the switchgear.

[0004] Therefore, there is an urgent need for a circuit breaker calibration device to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circuit breaker calibration device that can ensure the production accuracy of circuit breakers, guarantee the precision of the connection between circuit breakers and cabinets, and improve the production standards and operational safety and reliability of switchgear.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A circuit breaker calibration device is provided. The circuit breaker includes a first conductor and a second conductor spaced apart along a first direction. The first conductor has a plurality of mounting holes, and the second conductor has a plurality of fasteners. The circuit breaker calibration device includes:

[0008] The base can extend into the space between the first conductor and the second conductor in the second direction and can fit against the side of the second conductor near the first conductor. The base is provided with calibration slots that correspond one-to-one with multiple fasteners, and the fasteners can be embedded in the corresponding calibration slots.

[0009] The bracket is set on the base, and both sides of the bracket along the third direction can fit against the side of the first conductor. The bracket is provided with calibration holes that correspond one-to-one with multiple mounting holes. The calibration holes can be aligned with the corresponding mounting holes, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] Optionally, the circuit breaker calibration device also includes a limiting element, which is located at the end of the bracket away from the base and can be engaged with the side of the first conductor opposite to the second conductor.

[0011] Optionally, the circuit breaker calibration device further includes a first reinforcement member, with the bracket disposed at one end of the base along the second direction and the first reinforcement member disposed at the other end of the base along the second direction.

[0012] Optionally, the circuit breaker calibration device further includes a plurality of second reinforcement members disposed on the bracket, the plurality of second reinforcement members being arranged at intervals along a third direction, the second reinforcement members extending along a first direction and perpendicular to the bracket.

[0013] Optionally, the circuit breaker calibration device also includes a delta connector, one side of which is connected to the second reinforcement and the other side to the bracket.

[0014] Optionally, the circuit breaker calibration device also includes a plurality of third reinforcements, which are spaced apart along a third direction, with one end of each third reinforcement connected to a base and the other end connected to a bracket.

[0015] Optionally, the diameter of the calibration hole is the same as the diameter of the mounting hole, and when the calibration hole is aligned with the corresponding mounting hole, the calibration hole can cover the corresponding mounting hole.

[0016] Optionally, both the base and the support can be made of steel plates.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention provides a circuit breaker calibration device. A base is inserted between a first conductor and a second conductor along a second direction, and the position of the second conductor or the base is adjusted so that the base fits snugly against the second conductor. The base then serves as a reference component in the subsequent calibration process. By observing whether both sides of the bracket along a third direction fit snugly against the side of the first conductor, the operator can determine the consistency of the position of various parts of the first conductor along the third direction in the second direction. If there is inconsistency, the operator can adjust the position of various parts of the first conductor along the second direction according to the gap between the bracket and the first conductor to ensure precise alignment between the first conductor and the cabinet. The position of the calibration hole corresponds to the position of the mounting hole on a qualified circuit breaker. If the mounting hole of the circuit breaker aligns with the calibration hole, it indicates that the manufacturing of the mounting hole meets the requirements, helping to ensure the accuracy of the connection between the first conductor and the cabinet. If they do not align, it indicates that there are manufacturing or installation errors in the first, second, and / or third directions of the first conductor. In this case, the operator can calibrate the first conductor according to the relative position of the calibration hole and the mounting hole. The position of the calibration slot corresponds to the position of the fasteners on a qualified circuit breaker. If multiple fasteners are embedded in the corresponding calibration slots, it indicates that the length and position of each part of the second conductor in the second direction are consistent, meaning the second conductor meets production requirements and helps ensure the accuracy of the connection between the second conductor and the cabinet. If some fasteners cannot be embedded, it indicates that there is a production error or installation error in the second direction. In this case, the operator can calibrate the second conductor based on the embedding status of multiple fasteners in the corresponding calibration slots. Using the circuit breaker calibration device provided by this utility model can ensure the production accuracy of the circuit breaker and the accuracy of the connection between the circuit breaker and the cabinet, improving the production standards and operational safety and reliability of the switchgear. Attached Figure Description

[0019] Figure 1 A side view of the circuit breaker calibration device provided by this utility model when connected to a circuit breaker;

[0020] Figure 2 Front view of the circuit breaker calibration device provided by this utility model;

[0021] Figure 3 Top view of the circuit breaker calibration device provided by this utility model;

[0022] Figure 4 A top view of the circuit breaker calibration device provided by this utility model when connected to a circuit breaker;

[0023] Figure 5 A side view of the circuit breaker calibration device provided by this utility model.

[0024] in:

[0025] 101. First conductor; 1011. Mounting hole; 102. Second conductor; 1021. Fastener; 103. Support rod;

[0026] 1. Base; 11. Calibration slot; 12. First reinforcement; 13. Third reinforcement;

[0027] 2. Bracket; 21. Calibration hole; 22. Second reinforcement; 23. Triangular connector;

[0028] 3. Limiting components. Detailed Implementation

[0029] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 5 As shown, this embodiment provides a circuit breaker calibration device that can ensure the production accuracy of circuit breakers, guarantee the precision of the connection between circuit breakers and cabinets, and improve the production standards and operational safety and reliability of switchgear.

[0033] See Figure 1 , Figure 2 and Figure 3 The circuit breaker includes components along the first direction ( Figure 1 The circuit breaker calibration device includes a first conductor 101 and a second conductor 102 spaced apart in the Z direction. The first conductor 101 has multiple mounting holes 1011, and the second conductor 102 has multiple fasteners 1021. The circuit breaker calibration device includes a base 1 and a bracket 2. The base 1 is calibrated along the second direction (Z direction). Figure 1The bracket 2 extends into the space between the first conductor 101 and the second conductor 102 (in the X direction), and can fit against the side of the second conductor 102 near the first conductor 101. The base 1 is provided with calibration slots 11 corresponding to multiple fasteners 1021, and the fasteners 1021 can be embedded in the corresponding calibration slots 11. The bracket 2 is disposed on the base 1, and the bracket 2 extends along a third direction (in the X direction). Figure 2 Both sides of the Y direction can fit against the side of the first conductor 101. The bracket 2 is provided with calibration holes 21 corresponding to multiple mounting holes 1011. The calibration holes 21 can be aligned with the corresponding mounting holes 1011. The first direction, the second direction and the third direction are perpendicular to each other.

[0034] The circuit breaker calibration device provided in this embodiment involves inserting the base 1 between the first conductor 101 and the second conductor 102 along the second direction, and adjusting the position of the second conductor 102 or the base 1 so that the base 1 can fit against the second conductor 102. At this time, the base 1 can serve as a reference component in the subsequent calibration process. By observing whether both sides of the bracket 2 along the third direction are in contact with the side of the first conductor 101, the operator can determine the consistency of the position of each part of the first conductor 101 along the third direction in the second direction. When there is a discrepancy, the operator can adjust the position of each part of the first conductor 101 along the second direction according to the gap between the bracket 2 and the first conductor 101 to ensure that the first conductor 101 can be accurately aligned with the cabinet. The position of calibration hole 21 corresponds to the position of mounting hole 1011 on a qualified circuit breaker. If the mounting hole 1011 of the circuit breaker can be aligned with calibration hole 21, it means that the production of mounting hole 1011 meets the requirements, which helps to ensure the accuracy of the connection between the first conductor 101 and the cabinet. If they cannot be aligned, it means that there is a production error or installation error in the first conductor 101 in the first direction, the second direction and / or the third direction. At this time, the staff can calibrate the first conductor 101 according to the relative position of calibration hole 21 and mounting hole 1011. The position of the calibration slot 11 corresponds to the position of the fastener 1021 on the qualified circuit breaker. If multiple fasteners 1021 are embedded in the corresponding calibration slot 11, it indicates that the length and position of each part of the second conductor 102 in the second direction are consistent, meaning that the second conductor 102 meets the production requirements and helps ensure the accuracy of the connection between the second conductor 102 and the cabinet. If there are cases where fasteners 1021 cannot be embedded, it indicates that there is a production error or installation error in the second direction. In this case, the operator can calibrate the second conductor 102 based on the embedding status of multiple fasteners 1021 in the corresponding calibration slot 11. Using the circuit breaker calibration device provided in this embodiment can ensure the production accuracy of the circuit breaker and the accuracy of the connection between the circuit breaker and the cabinet, improving the production standards and operational safety and reliability of the switchgear.

[0035] In this embodiment, the specific process for calibrating the circuit breaker is as follows:

[0036] S1, see reference Figure 1 Insert the base 1 between the first conductor 101 and the second conductor 102, and ensure that the base 1 can fit against the top surface of the second conductor 102.

[0037] If the base 1 cannot fit with the second conductor 102 during this process, the bolts connecting the second conductor 102 to other components of the circuit breaker can be loosened, and the position of the second conductor 102 can be adjusted using a rubber mallet.

[0038] S2. Observe whether both sides of the bracket 2 along the third direction are in contact with the side of the first conductor 101. If so, it means that the length of each part of the first conductor 101 along the third direction is the same in the second direction and the first conductor 101 is not tilted in the second direction. If not, replace the first conductor 101 according to the specific situation or use tools such as rubber mallets to adjust the position of the first conductor 101 on other parts of the circuit breaker.

[0039] S3. Observe whether all mounting holes 1011 are aligned with calibration holes 21. If so, it means that the production accuracy of mounting holes 1011 and the installation position of the first conductor 101 on other parts are correct. If not, that is, the mounting holes 1011 and calibration holes 21 are misaligned, it means that the installation position of the first conductor 101 on other parts or the production accuracy of mounting holes 1011 is incorrect. At this time, the staff will use tools such as rubber mallets to adjust the position of the first conductor 101 on other parts or replace the first conductor 101 according to the specific situation.

[0040] S4. Observe whether all fasteners 1021 are embedded in the calibration groove 11. If so, it means that the production accuracy and installation position of the second conductor 102 are correct. If not, it means that there is a gap between the fasteners 1021 and the groove wall of the calibration groove 11. The staff can use tools such as rubber mallets to adjust the position of the second conductor 102 on other parts or replace the second conductor 102 according to the specific situation.

[0041] Specifically, if the gaps in each calibration slot 11 are the same, it indicates that the length of the second conductor 102 along the second direction is less than the design requirement. This may be due to the assembly margin being accumulated at the second conductor 102 during circuit breaker assembly, or it may be because the production dimensions of the second conductor 102 do not meet the design requirements. If the gaps in each calibration slot 11 are different, it indicates that the second conductor 102 is tilted along the second direction when assembled with other components of the circuit breaker.

[0042] For example, see Figure 1 and Figure 3 The calibration slot 11 is provided with three slots, and each slot has a U-shaped cross-section. The fastener 1021 can enter the calibration slot 11 through the opening of the U-shaped slot.

[0043] In this embodiment, see Figure 1 and Figure 2 Multiple mounting holes 1011 are arranged at intervals along a third direction and extend along a second direction. Thus, when observing whether multiple mounting holes 1011 are aligned with the calibration hole 21, the operator can determine the production accuracy of the first conductor 101 in the first direction based on the alignment.

[0044] For example, see Figure 2 There are six calibration holes 21, which are divided into three groups, with two calibration holes 21 in each group.

[0045] In this embodiment, see Figure 1 The length of the bracket 2 along the third direction is the same as that of the first conductor 101, which helps the staff to judge the production accuracy of each part of the first conductor 101 along the third direction in the second direction based on the fit between the bracket 2 and the first conductor 101 along the third direction.

[0046] For example, see Figure 1 The first direction is the vertical direction.

[0047] In this embodiment, both the base 1 and the support 2 are plates made of steel. Steel has high rigidity, ensuring that the base 1 and support 2 will not deform during the calibration of the first conductor 101 and the second conductor 102, thus ensuring their stability as reference components and contributing to the accuracy of the circuit breaker calibration.

[0048] Optionally, see Figure 1 and Figure 5 The circuit breaker calibration device also includes a limiting member 3, which is located at the end of the bracket 2 away from the base 1 and can fit against the side of the first conductor 101 opposite to the second conductor 102. That is, the limiting member 3 is set at an angle to the bracket 2, which helps to prevent the bracket 2 from moving during the calibration process and ensures the accuracy of the calibration.

[0049] For example, the limiting member 3 is a plate made of steel, and both the limiting member 3 and the base 1 are perpendicular to the bracket 2.

[0050] Optionally, see Figure 3 and Figure 5 The circuit breaker calibration device also includes a first reinforcing member 12. The bracket 2 is disposed at one end of the base 1 along the second direction, and the first reinforcing member 12 is disposed at the other end of the base 1 along the second direction. The first reinforcing member 12 can increase the bending stiffness of the base 1, and prevent the base 1 from bending due to excessive external force during circuit breaker calibration, thus affecting the calibration accuracy.

[0051] In this embodiment, see Figure 1 and Figure 2 A support rod 103 is provided between the first conductor 101 and the second conductor 102 of the circuit breaker for low current. To prevent the limiting member 3 from contacting the support rod 103 when the base 1 extends between the first conductor 101 and the second conductor 102, the limiting member 3 is disconnected at the calibration groove 11.

[0052] For example, the first reinforcement 12 is a plate made of steel and extends along a first direction.

[0053] Optionally, see Figure 2 The circuit breaker calibration device also includes a plurality of second reinforcing members 22 disposed on the bracket 2. The plurality of second reinforcing members 22 are arranged at intervals along a third direction and extend along a first direction, perpendicular to the bracket 2. The arrangement of the plurality of second reinforcing members 22 can increase the stiffness of the bracket 2 along the third direction. The extension of the second reinforcing members 22 along the first direction can increase the stiffness of the bracket 2 along the first direction, which helps to avoid excessive external force on the circuit breaker causing deformation of the bracket 2 and affecting the calibration effect.

[0054] For example, the second reinforcement 22 is a plate made of steel.

[0055] In this embodiment, see Figure 2 and Figure 5 The circuit breaker calibration device also includes a triangular connector 23. One side of the triangular connector 23 is connected to the second reinforcement member 22, and the other side is connected to the bracket 2, thereby connecting the second reinforcement member 22 and the bracket 2. The connection between the bracket 2 and the second reinforcement member 22 via the triangular connector 23 not only avoids stress concentration at the connection point but also allows a stable triangular structure to be formed between the bracket 2 and the second reinforcement member 22, increasing the stability of the second reinforcement member 22 on the bracket 2 and the rigidity of the bracket 2.

[0056] For example, the triangular connector 23 is made of angle steel and is welded to the bracket 2 and the second reinforcement 22.

[0057] In other embodiments, the second reinforcement 22 may be directly welded to the bracket 2.

[0058] Optionally, see Figure 3 and Figure 5 The circuit breaker calibration device also includes multiple third reinforcing members 13, which are spaced apart along a third direction. One end of each third reinforcing member 13 is connected to the base 1, and the other end is connected to the bracket 2. This arrangement enhances the connection strength between the bracket 2 and the base 1, improves the overall rigidity of the circuit breaker calibration device, and prevents the bracket 2 and the base 1 from separating under external force during calibration, thus affecting the calibration effect.

[0059] In this embodiment, the dimensions of the two third reinforcement members 13 located at both ends of the base 1 along the third direction are larger than the dimensions of the other third reinforcement members 13. Both ends of the base 1 and the bracket 2 along the third direction are structurally weak points. This arrangement can further ensure the connection strength between the bracket 2 and the base 1, and ensure the calibration effect.

[0060] For example, see Figure 5 The third reinforcing component 13 is made of angle steel.

[0061] Optionally, the diameter of the calibration hole 21 is the same as the diameter of the mounting hole 1011. When the calibration hole 21 is aligned with the corresponding mounting hole 1011, the calibration hole 21 can cover the corresponding mounting hole 1011. This setting helps operators quickly determine the alignment of the calibration hole 21 and the mounting hole 1011, and facilitates the adjustment of the position of the mounting hole 1011.

[0062] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A circuit breaker calibration device, the circuit breaker comprising a first conductor (101) and a second conductor (102) spaced apart along a first direction, the first conductor (101) having a plurality of mounting holes (1011), and the second conductor (102) having a plurality of fasteners (1021), characterized in that, The circuit breaker calibration device includes: The base (1) can extend into the space between the first conductor (101) and the second conductor (102) in the second direction and can fit against the side of the second conductor (102) near the first conductor (101). The base (1) is provided with calibration slots (11) corresponding to a plurality of fasteners (1021). The fasteners (1021) can be embedded in the corresponding calibration slots (11). A bracket (2) is disposed on the base (1), and both sides of the bracket (2) along the third direction can fit against the side of the first conductor (101). The bracket (2) is provided with calibration holes (21) corresponding to the plurality of mounting holes (1011). The calibration holes (21) can be aligned with the corresponding mounting holes (1011). The first direction, the second direction and the third direction are perpendicular to each other.

2. The circuit breaker calibration device according to claim 1, characterized in that, The circuit breaker calibration device further includes a limiting member (3), which is disposed at the end of the bracket (2) away from the base (1) and can fit against the side of the first conductor (101) away from the second conductor (102).

3. The circuit breaker calibration device according to claim 1, characterized in that, The circuit breaker calibration device further includes a first reinforcement (12), the bracket (2) is disposed at one end of the base (1) along the second direction, and the first reinforcement (12) is disposed at the other end of the base (1) along the second direction.

4. The circuit breaker calibration device according to claim 1, characterized in that, The circuit breaker calibration device further includes a plurality of second reinforcement members (22) disposed on the bracket (2), the plurality of second reinforcement members (22) being arranged at intervals along the third direction, the second reinforcement members (22) extending along the first direction and perpendicular to the bracket (2).

5. The circuit breaker calibration device according to claim 4, characterized in that, The circuit breaker calibration device also includes a delta connector (23), one side of which is connected to the second reinforcement (22) and the other side is connected to the bracket (2).

6. The circuit breaker calibration device according to any one of claims 1-5, characterized in that, The circuit breaker calibration device also includes a plurality of third reinforcement members (13), which are arranged at intervals along the third direction. One end of each third reinforcement member (13) is connected to the base (1), and the other end is connected to the bracket (2).

7. The circuit breaker calibration device according to any one of claims 1-5, characterized in that, The diameter of the calibration hole (21) is the same as the diameter of the mounting hole (1011). When the calibration hole (21) is aligned with the corresponding mounting hole (1011), the calibration hole (21) can cover the corresponding mounting hole (1011).

8. The circuit breaker calibration device according to any one of claims 1-5, characterized in that, Both the base (1) and the bracket (2) are plates made of steel.

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