A transformer core clamping device

By designing the adjustment plate and clamping components, the problem of loose connection between iron core chips was solved, achieving tight clamping and surface flatness of the iron core, thus improving the working quality of the iron core.

CN224304523UActive Publication Date: 2026-05-29ZHEJIANG YINENG IRON CORE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YINENG IRON CORE CO LTD
Filing Date
2025-07-21
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing transformer core clamping device results in loose connections between the core chips after stacking, with gaps and uneven surfaces, affecting the working quality of the core.

Method used

A transformer core clamping device was designed. By combining the adjustment plate and clamping components, the core can be limited, fixed and tightly clamped, reducing gaps and making the surface smoother.

Benefits of technology

This improves the working quality of the iron core, making the iron core pieces more compact and flat, and enhancing the overall performance of the iron core.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a transformer core clamping device, including base, the base top rotatory connection has the rotating table, the rotating table top fixedly connected with the placement platform, the placement platform surface is equipped with the assembly position, the inside of assembly position is located through bolt connection with the adjusting plate in both sides, and the adjusting plate between two forms assembly cavity, the assembly cavity is placed with the core body, a plurality of clamping components are clamped to the core body surface, the clamping component includes clamping handle, rotating handle, first clamping block and second clamping block, clamping handle one end screw thread connection has rotating handle, rotating handle output fixedly connected with first clamping block, clamping handle other end fixedly connected with the second clamping block of cooperation with first clamping block. The above structure design, through clamping assembly to the iron core clamping, make the iron core more closely, reduce the clearance between the iron core piece, make the iron core piece more level, improve the working quality of iron core.
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Description

Technical Field

[0001] This utility model relates to the field of transformer core technology, specifically a transformer core clamping device. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, secondary coil, and core. The transformer core is the main magnetic circuit part of the transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with a high silicon content and an insulating varnish coating. The core and the coils wound around it form a complete electromagnetic induction system. The power transmitted by a power transformer depends on the material and cross-sectional area of ​​the core.

[0003] In existing transformer core clamping devices, workers hold the core by hand after stacking the iron core chips. This results in insufficient tightness between the iron core chips, gaps between them, and uneven surfaces, thus reducing the working quality of the core. Summary of the Invention

[0004] The purpose of this utility model is to provide a transformer core clamping device to solve the problem mentioned in the background art of the existing transformer core positioning device, where the operator clamps the core by hand after stacking the iron chips, resulting in insufficient connection between the iron chips, gaps between the iron chips, and uneven surface of the iron chips, thus reducing the working quality of the core.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a transformer core clamping device, comprising a base, a rotating platform rotatably connected to the top of the base, a placement platform fixedly connected to the top of the rotating platform, an assembly position opened on the surface of the placement platform, adjusting plates connected to both sides of the assembly position by bolts, forming an assembly cavity between the two adjusting plates, a core body placed in the assembly cavity, and multiple clamping components clamped on the surface of the core body, each clamping component including a clamping handle, a rotating handle, a first clamping block, and a second clamping block, one end of the clamping handle being threadedly connected to the rotating handle, the output end of the rotating handle being fixedly connected to the first clamping block, and the other end of the clamping handle being fixedly connected to the second clamping block that cooperates with the first clamping block.

[0006] Preferably, a rotating shaft is fixedly connected to the top of the base, a bearing seat is fixedly installed on the surface of the rotating table at a position opposite to the rotating shaft, and the bearing seat is connected to the rotating shaft inside, and an installation block is fixedly installed on the bottom surface of the base.

[0007] Preferably, a balance block is fixedly installed between the top of the base and the bottom of the rotating platform.

[0008] Preferably, the assembly position has irregularly shaped adjustment grooves at both the front and rear ends, and the surface of the adjustment plate has connecting holes at positions opposite to the irregularly shaped adjustment grooves. The connecting holes are connected to the irregularly shaped adjustment grooves by bolts.

[0009] Preferably, the rotating handle includes an operating handle and a threaded rod, the operating handle is fixedly connected to one end of the threaded rod, and a first clamping block is fixedly connected to the other end of the threaded rod.

[0010] Preferably, the clamping handle has a threaded hole at the end away from the second clamping block, and a threaded rod is threaded into the threaded hole.

[0011] Beneficial effects

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0013] By combining the structural design of this utility model, the assembled iron core can be limited and fixed by the cooperation of two adjusting plates connected in the assembly position, and the iron core can be clamped by the clamping component, making the iron core tighter, reducing the gap between the iron chips, making the iron chips flatter, and improving the working quality of the iron core. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cooperation structure between the base and the rotating platform of this utility model;

[0016] Figure 3 This is a schematic diagram of the placement platform structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the clamping component structure of this utility model.

[0018] The correspondence between the labels and component names in the attached figures is as follows:

[0019] 1. Base; 2. Rotating platform; 3. Placement platform; 4. Clamping assembly; 5. Iron core body; 11. Rotating shaft;

[0020] 12. Mounting block; 13. Balance block; 21. Bearing housing; 31. Assembly position; 32. Adjusting plate; 33. Assembly cavity;

[0021] 34. Irregularly shaped adjustment groove; 41. Clamping handle; 42. Rotating handle; 321. Connecting hole;

[0022] 411. Second clamping block; 412. Threaded hole; 421. Operating handle; 422. Threaded rod;

[0023] 423. First clamping block. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-4 This is a schematic diagram of a preferred embodiment of the transformer core clamping device of the present invention. In this embodiment, the transformer core clamping device includes a stable base 1. A rotating platform 2 is rotatably connected to the top of the base 1 via a rotating shaft 11 and a bearing seat 21. Specifically, the rotating shaft 11 is fixedly installed at the center of the top of the base 1, and the bearing seat 21 is fixedly installed at the corresponding position at the bottom of the rotating platform 2. The bearing inside the bearing seat 21 is sleeved on the rotating shaft 11, enabling the rotating platform 2 to rotate horizontally relative to the base 1.

[0027] In this embodiment, a balance block 13 is fixedly installed between the top of the base 1 and the bottom of the rotating platform 2, the purpose of which is to enhance the stability of the rotating platform 2 when it rotates.

[0028] In this embodiment, a placement platform 3 is fixedly connected to the top of the rotating platform 2. A rectangular assembly position 31 is provided in the central area of ​​the surface of the placement platform 3. An adjusting plate 32 is bolted to each of the left and right sides of the assembly position 31. Specifically, elongated irregularly shaped adjustment grooves 34 are provided at both ends of the assembly position 31 along its lateral length direction. A connecting hole 321 is provided on the bottom surface of the adjusting plate 32 at a position corresponding to the irregularly shaped adjustment groove 34. During installation, the adjusting plate 32 is placed on the assembly position 31, the connecting hole 321 is aligned with the irregularly shaped adjustment groove 34, and then a bolt is passed through the connecting hole 321 and screwed into the nut fixed in the irregularly shaped adjustment groove 34, thereby adjustingly fixing the adjusting plate 32 to the placement platform 3. The two adjusting plates 32 are arranged in parallel opposite directions, and the space between them forms an assembly cavity 33. By loosening the bolts fixing the adjusting plate 32, the adjusting plate 32 can be slid along the irregular adjusting groove 34, thereby changing the width of the assembly cavity 33 to accommodate iron core bodies 5 of different sizes, and placing the iron core body 5 in the assembly cavity 33. Multiple clamping components 4 are clamped on the lamination surface of the iron core body 5 for clamping and pressing the iron core laminations during the assembly process.

[0029] In this embodiment, the clamping handle 41 is a long rod-shaped component, with a second clamping block 411 fixedly connected to one end, and a threaded hole 412 provided at the other end of the clamping handle 41.

[0030] In this embodiment, the rotating handle 42 consists of an operating handle 421 and a threaded rod 422. The operating handle 421 is fixedly connected to one end of the threaded rod 422. A first clamping block 423 is fixedly connected to the other end of the threaded rod 422.

[0031] In this embodiment, the threaded rod 422 is threadedly connected to the threaded hole 412 at the other end of the clamping handle 41. Therefore, the rotating handle 42 forms a threaded transmission connection with the threaded hole 412 of the clamping handle 41 through its threaded rod 422.

[0032] In this embodiment, the first clamping block 423 and the second clamping block 411 are arranged opposite to each other to form a clamping opening. Clamping is performed by the first clamping block 423 and the second clamping block 411.

[0033] Work process:

[0034] In the adjustment assembly cavity 33, loosen the bolts used to fix the two adjusting plates 32 according to the width of the iron core body 5 to be clamped. Slide the adjusting plates 32 along the irregular adjusting groove 34 to adjust the distance between the two adjusting plates 32 so that the width of the resulting assembly cavity 33 is slightly larger than the width of the iron core body 5. Then tighten the bolts to re-fix the adjusting plates 32, which serves to limit and fix the position of the iron core body 5.

[0035] When placing the iron core, carefully insert the iron core body 5 into the assembly cavity 33, positioning it approximately between the two adjusting plates 32. Place the clamping assembly 4 across the part of the iron core body 5 that needs to be clamped. Position the second clamping block 411 against one side of the iron core, with the first clamping block 423 approximately aligned with the other side of the iron core.

[0036] Rotate the operating handle 421 clockwise. Since the threaded rod 422 engages with the threaded hole 412 on the clamping handle 41, rotating the operating handle 421 will drive the threaded rod 422 to screw into the clamping handle 41.

[0037] The threaded rod 422 moves inward, causing the first clamping block 423 at its end to move closer to the fixed second clamping block 411.

[0038] The first clamping block 423 and the second clamping block 411 work together to firmly clamp the iron core body 5 between them. The self-locking characteristic of the threaded drive ensures that the clamping force is maintained.

[0039] Rotation Operation: When the angle of the iron core needs to be adjusted for assembly or inspection, the operator can easily rotate the entire rotary table 2 manually. The rotary table 2 rotates smoothly around the rotation shaft 11 on the base 1 via the bearing seat 21 at the bottom. The mounting block 12 at the bottom of the base 1 is used to fix the entire device to the workbench or bracket to prevent the base 1 from rotating. The balance block 13 helps to keep the center of gravity of the rotary table 2 stable during rotation and prevents wobbling.

[0040] Disassembly: When it is necessary to disassemble the iron core, rotate the operating handle 421 counterclockwise so that the threaded rod 422 drives the first clamping block 423 away from the second clamping block 411, releasing the clamping of the iron core body 5, and then the clamping assembly 4 and the iron core body 5 can be removed.

[0041] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A transformer core clamping device, comprising a base (1), characterized in that: The base (1) is rotatably connected to a rotating platform (2) on its top. The rotating platform (2) is fixedly connected to a placement platform (3) on its top. An assembly position (31) is provided on the surface of the placement platform (3). An adjustment plate (32) is bolted to both sides of the assembly position (31). An assembly cavity (33) is formed between the two adjustment plates (32). An iron core body (5) is placed in the assembly cavity (33). Multiple clamping components (4) are clamped on the surface of the iron core body (5). The clamping components (4) include a clamping handle (41), a rotating handle (42), a first clamping block (423), and a second clamping block (411). One end of the clamping handle (41) is threadedly connected to the rotating handle (42). The output end of the rotating handle (42) is fixedly connected to the first clamping block (423). The other end of the clamping handle (41) is fixedly connected to the second clamping block (411) that cooperates with the first clamping block (423).

2. The transformer core clamping device according to claim 1, characterized in that: The base (1) is fixedly connected to the top of a rotating shaft (11), and a bearing seat (21) is fixedly installed on the surface of the rotating platform (2) at a position opposite to the rotating shaft (11). The bearing seat (21) is connected to the rotating shaft (11) inside, and an installation block (12) is fixedly installed on the bottom surface of the base (1).

3. The transformer core clamping device according to claim 2, characterized in that: A balance block (13) is fixedly installed between the top of the base (1) and the bottom of the rotating platform (2).

4. The transformer core clamping device according to claim 1, characterized in that: The assembly position (31) has irregularly shaped adjustment grooves (34) at both the front and rear ends. The surface of the adjustment plate (32) has a connecting hole (321) at the opposite position of the irregularly shaped adjustment groove (34). The connecting hole (321) and the irregularly shaped adjustment groove (34) are connected by bolts.

5. The transformer core clamping device according to claim 1, characterized in that: The rotating handle (42) includes an operating handle (421) and a threaded rod (422). The operating handle (421) is fixedly connected to one end of the threaded rod (422), and the other end of the threaded rod (422) is fixedly connected to a first clamping block (423).

6. The transformer core clamping device according to claim 1, characterized in that: The clamping handle (41) has a threaded hole (412) at the end away from the second clamping block (411), and a threaded rod (422) is threadedly connected inside the threaded hole (412).