Transformer winding inspection device

Abstract

The utility model relates to the technical field of transformer winding inspection, in particular to a transformer winding inspection device, which comprises an inspection bench. The main body mechanism comprises a driving motor and a limiting long plate, the output end of the driving motor penetrates through the side plate and is fixedly connected with a main rotating rod, the left portion and the right portion of the outer surface of the main rotating rod are fixedly connected with a second main gear and a first main gear correspondingly, and the front portion of the outer surface of the first main gear is in meshed connection with a butt joint assembly; the rear portion of the outer surface of the second main gear is in engaged connection with a detection assembly, and the driving motor is fixedly connected to the right end of the side plate. According to the transformer winding inspection device provided by the utility model, the single driving motor synchronously drives the coil to rotate and the visual inspection equipment to linearly move, the positive and negative threaded rods are matched to realize rapid clamping of coil rollers of different specifications, and the limiting structure is utilized to ensure the detection stability, so that the winding quality of the coil is efficiently detected.

Description

Technical Field

[0001] This utility model relates to the field of transformer winding inspection technology, and in particular to a transformer winding inspection device. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. It is widely used in industry, agriculture, transportation, and urban communities. During the winding process of transformer coils, the finished coils need to be inspected.

[0003] Existing inspection devices for transformer coils typically only detect surface issues such as winding spacing and broken wires, lacking the capability to inspect the coil diameter. During the coil winding process, if the coil diameter does not meet requirements, it can lead to installation difficulties and substandard electrical performance in subsequent assembly. Furthermore, inconsistent coil diameters can cause coils to easily overlap and become entangled, a situation difficult to detect during production and thus affecting the overall quality of the transformer. Most existing inspection devices can only inspect transformer coils of a single size, lacking a structure for clamping and inspecting coils of different sizes. Due to the diverse specifications of transformers and varying coil sizes, different inspection devices or complex adjustments are required when inspecting coils of different sizes, resulting in cumbersome operation, inconvenience, and reduced inspection efficiency. Therefore, a transformer winding inspection device needs to be designed to address these issues. Utility Model Content

[0004] The main objective of this invention is to provide a transformer winding inspection device that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A transformer winding inspection device includes an inspection table, with a front long slot and a rear long slot respectively opened at the front and rear of the upper end of the inspection table, a side plate fixedly connected to the right end of the inspection table, a main body mechanism fixedly connected to the right end of the side plate, and a display fixedly connected to the front of the upper end of the side plate.

[0007] The main structure includes a drive motor and a limiting plate. The output end of the drive motor passes through the side plate and is fixedly connected to a main rotating rod. The left and right outer surfaces of the main rotating rod are respectively fixedly connected to a second main gear and a first main gear. The front of the outer surface of the first main gear is meshed with a docking component, and the rear of the outer surface of the second main gear is meshed with a detection component. The drive motor is fixedly connected to the right end of the side plate.

[0008] Preferably, the docking assembly includes a first driven gear, a first connecting short shaft is fixedly connected to the right end of the first driven gear, a positive and negative threaded rod is fixedly connected to the middle of the left end of the first driven gear, clamping plates are movably connected to the left and right sides of the outer surfaces of the positive and negative threaded rod, docking cylinders are fixedly connected to the upper parts of the opposite surfaces of the clamping plates, a limiting plate is fixedly connected to the middle of the outer surface of the docking cylinders, a coil roller is installed on the outer surfaces of the two docking cylinders, a coil body is wound around the surface of the coil roller, and the first driven gear is meshed with the front part of the outer surface of the first main gear.

[0009] Preferably, the detection component includes a second driven gear, a second connecting short shaft is fixedly connected to the right end of the second driven gear, a threaded screw is fixedly connected to the left end of the second driven gear, a displacement frame is movably connected to the outer surface of the threaded screw, a through limiting groove is opened at the lower right end of the displacement frame, a control plate is provided at the front end of the displacement frame, a vision inspection device is embedded in the front part of the upper wall of the displacement frame, and the second driven gear is meshed with the rear part of the outer surface of the second main gear.

[0010] Preferably, the left end of the positive and negative threaded rod is movably connected to the left wall of the front long groove via a bearing, the bottom of the clamping plate is slidably connected in the front long groove, and the right end of the first connecting short shaft is movably connected to the side plate via a bearing.

[0011] Preferably, the left end of the threaded screw is movably connected to the left wall of the rear long groove via a bearing, and the right end of the second connecting short shaft is movably connected to the side plate via a bearing.

[0012] Preferably, the two ends of the limiting plate are fixedly connected to the lower part of the left groove wall and the lower part of the right groove wall of the rear groove, respectively, and the positional dimensions of the limiting plate are adapted to the positional dimensions of the limiting groove.

[0013] Preferably, the detection end of the visual inspection device faces the surface of the coil body, and the optical axis of the visual inspection device is perpendicular to the axis of the coil roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the detection end of the visual inspection device faces the surface of the coil body, and its optical axis is perpendicular to the axis of the coil roller. During the inspection process, the coil body rotates around the axis of the positive and negative threaded rod. At the same time, the visual inspection device moves in a straight line along the rear long groove under the drive of the displacement frame, thereby realizing a comprehensive scan of the surface of the coil body. Through this visual inspection device, not only can the winding spacing and whether there is a broken wire be detected, but also the diameter of the coil can be measured and inspected using its high-precision visual inspection function. When the coil diameter does not meet the requirements, the visual inspection device can transmit the detection data to the display for display, so that the staff can discover and deal with it in time, and avoid the transformer quality being affected by the coil diameter problem.

[0016] 2. In this utility model, the docking assembly includes a positive and negative threaded rod and a clamping plate. The threads on the left and right sides of the outer surface of the positive and negative threaded rods have opposite directions. When the drive motor drives the first main gear to rotate, the first main gear meshes and drives the first driven gear to rotate, thereby causing the positive and negative threaded rods to rotate. Since the threads have opposite directions, the two clamping plates will slide towards or away from each other along the front long groove. Through this design, the distance between the two clamping plates can be adjusted according to the size of the coil roller, thereby realizing the clamping and loosening of coil rollers of different specifications. It can adapt to the clamping and testing requirements of transformer coils of different sizes. When it is necessary to replace coils of different sizes, it is not necessary to replace the entire inspection device. It is only necessary to control the movement of the clamping plates by the drive motor to complete the installation and positioning of coils of different sizes. The operation is simple, which improves the applicability and ease of use of the inspection device and improves the inspection efficiency. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of a transformer winding inspection device according to the present invention;

[0018] Figure 2 This is a second-view structural schematic diagram of a transformer winding inspection device according to the present invention;

[0019] Figure 3 This is a schematic diagram of the main structure of a transformer winding inspection device according to the present invention;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the docking assembly of a transformer winding inspection device according to this utility model;

[0021] Figure 5 This is a schematic diagram of the detection component structure of a transformer winding inspection device according to the present invention;

[0022] Figure 6 This is a detailed enlarged structural diagram of section A of the transformer winding inspection device of this utility model.

[0023] In the diagram: 1. Inspection table; 2. Main body; 3. Rear long slot; 4. Side plate; 5. Front long slot; 6. Display; 21. Drive motor; 22. First main gear; 23. Second main gear; 24. Docking assembly; 25. Detection assembly; 26. Limiting long plate; 27. Main rotating rod; 241. First driven gear; 242. First connecting short shaft; 243. Positive and negative threaded rod; 244. Clamping plate; 245. Docking cylinder; 246. Limiting plate; 247. Coil roller; 248. Coil body; 251. Second connecting short shaft; 252. Second driven gear; 253. Threaded screw; 254. Displacement frame; 255. Limiting slot; 256. Control panel; 257. Visual inspection equipment. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0027] Please see Figure 1-6 This utility model provides a technical solution:

[0028] A transformer winding inspection device includes an inspection table 1. The front and rear of the upper end of the inspection table 1 are respectively provided with a front long slot 5 and a rear long slot 3. A side plate 4 is fixedly connected to the right end of the inspection table 1. A main body mechanism 2 is fixedly connected to the right end of the side plate 4. A display 6 is fixedly connected to the front of the upper end of the side plate 4.

[0029] In this embodiment, the main body mechanism 2 includes a drive motor 21 and a limiting plate 26. The output end of the drive motor 21 passes through the side plate 4 and is fixedly connected to a main rotating rod 27. A second main gear 23 and a first main gear 22 are fixedly connected to the left and right sides of the outer surface of the main rotating rod 27, respectively. A docking assembly 24 is meshed with the front of the outer surface of the first main gear 22, and a detection assembly 25 is meshed with the rear of the outer surface of the second main gear 23. The drive motor 21 is fixedly connected to the right end of the side plate 4. The docking assembly 24 includes a first driven gear 241. A first connecting short shaft 242 is fixedly connected to the right end of the first driven gear 241. A positive and negative threaded rod 243 is fixedly connected to the middle of the left end of the first driven gear 241. Clamping plates are movably connected to the left and right sides of the outer surface of the positive and negative threaded rod 243. 244, the upper part of the opposite surfaces of the clamping plate 244 is fixedly connected to the docking cylinder 245, the middle part of the outer surface of the docking cylinder 245 is fixedly connected to the limiting plate 246, the outer surfaces of the two docking cylinders 245 are jointly clamped and installed with the coil roller 247, the surface of the coil roller 247 is wound with the coil body 248, the first driven gear 241 is meshed with the front part of the outer surface of the first main gear 22, the left end of the positive and negative threaded rod 243 is movably connected to the left groove wall of the front long groove 5 through the bearing, the bottom of the clamping plate 244 is slidably connected in the front long groove 5, the right end of the first connecting short shaft 242 is movably connected to the side plate 4 through the bearing, the two ends of the limiting long plate 26 are respectively fixedly connected to the lower part of the left groove wall and the lower part of the right groove wall of the rear long groove 3, and the position dimension of the limiting long plate 26 is adapted to the position dimension of the limiting groove 255.

[0030] Through the above scheme: the drive motor 21 starts, and its output end drives the main rotating rod 27 to rotate, thereby causing the first main gear 22 and the second main gear 23 fixed on the main rotating rod 27 to rotate synchronously. The first main gear 22 drives the first driven gear 241 meshing with it to rotate. The first driven gear 241 is stably supported on the side plate 4 through the first connecting short shaft 242. When it rotates, it drives the positive and negative threaded rod 243 to rotate. Since the threads on the left and right sides of the outer surface of the positive and negative threaded rod 243 rotate in opposite directions, the two clamping plates movably connected to it are rotated. When the positive and negative threaded rod 243 rotates, it slides along the front long groove 5 in opposite directions, clamping the coil roller 247 through the docking cylinder 245 on the clamping plate 244, thereby achieving the installation and positioning of the coil body 248 wound on the coil roller 247. As the first driven gear 241 continues to rotate, it can drive the coil roller 247 and the coil body 248 to rotate around the axis of the positive and negative threaded rod 243. At the same time, the second main gear 23 drives the second driven gear 252 to rotate. The second driven gear 252 is located on the side through the second connecting short shaft 251. The plate 4 is stably supported, and its rotation drives the threaded screw 253 to rotate. The rotation of the threaded screw 253 causes the displacement frame 254 to reciprocate linearly along the rear long groove 3 under the combined limitation of the limiting plate 26 and the limiting groove 255. The vision inspection device 257 on the displacement frame 254 moves accordingly to inspect the winding condition on the surface of the rotating coil body 248. The beneficial effect of this scheme is that by driving the docking assembly 24 and the inspection assembly 25 simultaneously with a single drive motor 21, the rotation of the coil body 248 and the vision inspection are realized. The linear motion of the testing device 257 is compact and synchronized. The design of the positive and negative threaded rods 243 and the clamping plate 244 enables the quick clamping and loosening of the coil roller 247, facilitating the replacement of coil rollers 247 of different specifications. The cooperation between the limiting plate 26 and the limiting groove 255 ensures the stability of the linear motion of the displacement frame 254 and improves the testing accuracy. The limiting disk 246 in the middle of the outer surface of the docking cylinder 245 effectively prevents the coil roller 247 from axially moving during rotation, ensuring the reliability of the testing process.

[0031] In this embodiment, the detection component 25 includes a second driven gear 252. The right end of the second driven gear 252 is fixedly connected to a second connecting short shaft 251, and the left end of the second driven gear 252 is fixedly connected to a threaded screw 253. The outer surface of the threaded screw 253 is movably connected to a displacement frame 254. The lower right end of the displacement frame 254 has a through-hole limiting groove 255. The front end of the displacement frame 254 is provided with a control plate 256. The front part of the upper wall of the displacement frame 254 is embedded with a vision inspection device 257. The second driven gear 252 is meshed with the rear part of the outer surface of the second main gear 23. The left end of the positive and negative threaded rod 243 is movably connected to the left groove wall of the front long groove 5 through a bearing. The bottom of the clamping plate 244 is slidably connected in the front long groove 5. The right end of the first connecting short shaft 242 is movably connected to the side plate 4 through a bearing. The detection end of the vision inspection device 257 faces the surface of the coil body 248, and the optical axis of the vision inspection device 257 is perpendicular to the axis of the coil roller 247.

[0032] Through the above scheme: the drive motor 21 drives the main rotating rod 27 to rotate, causing the second main gear 23 to rotate synchronously. The second main gear 23 drives the second driven gear 252, which meshes with it, to rotate. The second driven gear 252 is stably supported on the side plate 4 through the second connecting short shaft 251. When it rotates, it drives the threaded screw 253 to rotate. The rotation of the threaded screw 253 causes the displacement frame 254 to reciprocate linearly along the rear long groove 3 under the cooperation and limitation of the limiting long plate 26 and the limiting groove 255. The vision inspection device 257 on the displacement frame 254 moves accordingly. At the same time, the first main gear 22 drives the first driven gear 241 to rotate, which in turn causes the positive and negative threaded rod 243 to rotate. Through the clamping plate 244 and the docking cylinder 245, the coil roller 247 and the coil body 248 rotate around the axis of the positive and negative threaded rod 243. Since the detection end of the vision inspection device 257 faces the surface of the coil body 248 and the optical axis is aligned with the coil roller 247, the detection end of the vision inspection device 257 faces the surface of the coil body 248 and the optical axis is aligned with the coil roller 253. With the axis perpendicular, during the movement of the displacement frame 254, the vision inspection device 257 can comprehensively inspect the winding condition of the rotating coil body 248, such as the winding spacing and whether there are broken wires, and transmit the inspection data to the display 6 for display. The beneficial effects of this scheme are: through gear transmission and lead screw and nut mechanism, the rotational motion of the drive motor 21 is converted into the linear motion of the displacement frame 254, realizing the comprehensive scanning inspection of the coil body 248 by the vision inspection device 257. The cooperation between the limiting plate 26 and the limiting groove 255 ensures the stability of the linear motion of the displacement frame 254 and improves the inspection accuracy. The setting of the control panel 256 makes it easy for the operator to adjust the inspection parameters according to the actual inspection needs. The design of the optical axis of the vision inspection device 257 being perpendicular to the axis of the coil roller 247 can effectively capture the minute defects on the surface of the coil body 248 and ensure the accuracy of the inspection results.

[0033] It should be noted that this utility model is a transformer winding inspection device. The device is connected to an external power source. Starting the drive motor 21 activates the main rotating rod 27, causing the first main gear 22 and the second main gear 23 to rotate synchronously. The first main gear 22 drives the first driven gear 241, which meshes with it, to rotate. The first driven gear 241 is stably supported by the first connecting short shaft 242. When it rotates, it drives the positive and negative threaded rod 243 to rotate. Because the threads on the left and right sides of the outer surface of the positive and negative threaded rod 243 rotate in opposite directions, the two clamping plates 244 movably connected to it slide in opposite directions along the front long groove 5 when the positive and negative threaded rod 243 rotates. The docking cylinder 245 on the 4 clamps the coil roller 247, realizing the installation and positioning of the coil body 248 wound on the coil roller 247. As the first driven gear 241 continues to rotate, it can drive the coil roller 247 and the coil body 248 to rotate around the axis of the positive and negative threaded rod 243. At the same time, the second main gear 23 drives the second driven gear 252 to rotate. The second driven gear 252 is stably supported by the second connecting short shaft 251. When it rotates, it drives the threaded screw 253 to rotate. The rotation of the threaded screw 253 causes the displacement frame 254 to make linear reciprocating motion along the rear long groove 3 under the cooperation and limitation of the limiting long plate 26 and the limiting groove 255. The vision inspection device 2 on the displacement frame 254 57 moves accordingly, with the detection end of the vision inspection device 257 facing the surface of the coil body 248 and its optical axis perpendicular to the axis of the coil roller 247. During the movement of the displacement frame 254, the winding condition of the rotating coil body 248 is detected, such as the winding spacing and whether there are any broken wires. The detection data is then transmitted to the display 6 for display. In terms of wiring, both the drive motor 21 and the vision inspection device 257 are connected to an external control circuit. The control circuit controls the speed and direction of the drive motor 21 and the working status of the vision inspection device 257. For example, relays or other control elements can be used to control the circuit on / off to start and stop the motor. The vision inspection data is transmitted via a signal transmission line. The data collected by the measuring device 257 is transmitted to the corresponding interface circuit of the display 6 for display. In terms of model selection, the drive motor 21 can be a three-phase asynchronous motor with certain torque output, stable speed and suitable for industrial environment, such as the Y-series three-phase asynchronous motor. Its protection level can meet the needs of general industrial sites. The vision inspection device 257 can be a Keyence series vision sensor. This series has the characteristics of high resolution and high detection accuracy, and can accurately detect the minute defects on the surface of the coil body 248. The display 6 can be an industrial-grade LCD screen. The ADVANTECH industrial display 6 from Advantech is highly reliable and can work stably in complex industrial environments.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A transformer winding inspection apparatus comprising an inspection station (1), characterised in that: The upper front part and the upper rear part of the inspection table (1) are respectively provided with a front long groove (5) and a rear long groove (3). The right end of the inspection table (1) is fixedly connected to a side plate (4). The right end of the side plate (4) is fixedly connected to a main body mechanism (2). The upper front part of the side plate (4) is fixedly connected to a display (6). The main body (2) includes a drive motor (21) and a limiting plate (26). The output end of the drive motor (21) passes through the side plate (4) and is fixedly connected to a main rotating rod (27). The left and right sides of the outer surface of the main rotating rod (27) are respectively fixedly connected to a second main gear (23) and a first main gear (22). The front of the outer surface of the first main gear (22) is meshed with a docking component (24), and the rear of the outer surface of the second main gear (23) is meshed with a detection component (25). The drive motor (21) is fixedly connected to the right end of the side plate (4).

2. A transformer winding inspection apparatus as claimed in claim 1, wherein: The docking assembly (24) includes a first driven gear (241), a first connecting short shaft (242) is fixedly connected to the right end of the first driven gear (241), a positive and negative threaded rod (243) is fixedly connected to the middle of the left end of the first driven gear (241), a clamping plate (244) is movably connected to the left and right sides of the outer surface of the positive and negative threaded rod (243), docking cylinders (245) are fixedly connected to the upper part of the opposite surfaces of the clamping plates (244), a limiting plate (246) is fixedly connected to the middle of the outer surface of the docking cylinders (245), a coil roller (247) is installed on the outer surface of the two docking cylinders (245), a coil body (248) is wound around the surface of the coil roller (247), and the first driven gear (241) is meshed with the front part of the outer surface of the first main gear (22).

3. A transformer winding inspection apparatus as claimed in claim 1, wherein: The detection component (25) includes a second driven gear (252), a second connecting short shaft (251) is fixedly connected to the right end of the second driven gear (252), a threaded screw (253) is fixedly connected to the left end of the second driven gear (252), a displacement frame (254) is movably connected to the outer surface of the threaded screw (253), a through limiting groove (255) is opened at the lower right end of the displacement frame (254), a control plate (256) is provided at the front end of the displacement frame (254), a visual inspection device (257) is embedded in the front part of the upper wall of the displacement frame (254), and the second driven gear (252) is meshed with the rear part of the outer surface of the second main gear (23).

4. The transformer winding inspection device according to claim 2, characterized in that: The left end of the positive and negative threaded rod (243) is movably connected to the left groove wall of the front long groove (5) through a bearing. The bottom of the clamping plate (244) is slidably connected in the front long groove (5). The right end of the first connecting short shaft (242) is movably connected to the side plate (4) through a bearing.

5. A transformer winding inspection apparatus as claimed in claim 3, wherein: The left end of the threaded screw (253) is movably connected to the left wall of the rear long groove (3) via a bearing, and the right end of the second connecting short shaft (251) is movably connected to the side plate (4) via a bearing.

6. A transformer winding inspection apparatus as claimed in claim 1, wherein: The two ends of the limiting long plate (26) are fixedly connected to the lower part of the left groove wall and the lower part of the right groove wall of the rear long groove (3), and the position size of the limiting long plate (26) is matched with the position size of the limiting groove (255).

7. A transformer winding inspection apparatus as claimed in claim 3, wherein: The detection end of the visual detection equipment (257) faces the surface of the coil body (248), and the optical axis of the visual detection equipment (257) is perpendicular to the axis of the coil roller (247).

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