A transformer core clamping tool

Abstract

The utility model relates to the field of iron core assembly, specifically disclose a transformer iron core clamping tool, including thickness clamping subassembly and width clamping subassembly, thickness clamping subassembly includes the vertical channel steel for fitting iron core, the horizontal channel steel for pressing vertical channel steel and threaded rod, and width clamping subassembly includes the side channel steel for fitting iron core and threaded rod. Three vertical channel steels and two horizontal channel steels of same side constitute integrated structure, and the whole design is small and thin. When clamping transformer iron core, only need to insert threaded rod to complete fixation, and the operation is convenient and efficient. Also because of the thin characteristic of vertical channel steel and horizontal channel steel, it will not hinder the subsequent addition of side channel steel. The side channel steel only needs to cut the wing plate edge to form the required stepped gap, and the processing and preparation are simple; and the gap of two wing plates can fully clamp the side surface of transformer iron core, effectively avoiding the dislocation of silicon steel sheet.

Description

Technical Field

[0001] This utility model belongs to the field of iron core assembly tools, and specifically relates to a transformer iron core clamping fixture. Background Technology

[0002] The transformer core, as a core magnetic circuit component, is composed of several silicon steel sheets stacked layer by layer. To facilitate stacking, several perforations are pre-drilled on the core for temporary mounting of tie rods for positioning before the silicon steel sheets are stacked. However, because the inner diameter of the perforations is larger than the outer diameter of the tie rods, misalignment in the left and right directions can easily occur after stacking several silicon steel sheets. In existing technologies, such as patent "CN118553530A - An Assembly System for a Transformer Core," a positioning scheme using C-clamps is disclosed, which uses several C-clamps to hold the core around its perimeter to assist in alignment. However, the C-clamps in this scheme occupy a large amount of space, which can hinder the subsequent installation of vertical clamps, making it difficult to achieve complete fixation of the core. Utility Model Content

[0003] The purpose of this utility model is to provide a small-sized and flexible transformer core clamping fixture.

[0004] To achieve the above objectives, this utility model provides a transformer core clamping fixture, comprising: a thickness clamping assembly and a width clamping assembly. The thickness clamping assembly includes three pairs of vertical channel steels, two pairs of horizontal channel steels, and several threaded rods. The three pairs of vertical channel steels respectively fit against two side columns and one central column of the transformer core. The three vertical channel steels on the same side are simultaneously supported and fixed in position by the two horizontal channel steels. The horizontal channel steels on different sides are penetrated by threaded rods. After the threaded rods are fitted with nuts, the three pairs of vertical channel steels clamp the front side of the transformer core. The width clamping assembly includes several pairs of side channel steels and several threaded rods. The cross-section of the side channel steel is U-shaped. Both flanges of the side channel steel have several stepped notches on the side that fits against the transformer core. The threaded rods penetrate the web of one pair of side channel steels. After the threaded rods are fitted with nuts, the several side channel steels clamp the side sides of the side columns, the side sides of the central column, the side sides of the upper beam, and the side sides of the lower beam of the transformer core.

[0005] As an improvement to the above solution, the gap between the horizontal channel steels on the same side is greater than the width of the side channel steel, and there is a gap between the horizontal channel steels on the same side and the upper and lower beams with a width greater than the height of the side channel steel, so that the side channel steel can clamp the middle position corresponding to the transformer core.

[0006] As an improvement to the above scheme, the distance between the two flanges of the side channel steel is 10-30cm.

[0007] As an improvement to the above solution, the vertical channel steel and the horizontal channel steel on the same side are welded and fixed.

[0008] As an improvement to the above solution, the upper and lower beams of the transformer core are respectively provided with an upper clamp and a lower clamp. The upper clamp and the lower clamp are penetrated by a threaded rod. After the threaded rod is fitted with a nut, the upper clamp and the lower clamp respectively clamp the upper and lower beams of the transformer core.

[0009] This utility model has the following advantages: the three vertical channel steels and two horizontal channel steels on the same side form an integrated structure, with a compact and slim overall design. When clamping the transformer core, only the threaded rod needs to be inserted to complete the fixation, making the operation convenient and efficient. Due to the slim characteristics of the vertical and horizontal channel steels, they do not hinder the subsequent addition of side channel steels. The side channel steels only require cutting the edges of the wing plates to form the required stepped notches, simplifying the manufacturing process; the notches of the two wing plates can fully clamp the sides of the transformer core, effectively preventing misalignment of the silicon steel sheets. Furthermore, the spacing between the two wing plates of the side channel steel can be flexibly selected according to actual working conditions to accommodate the installation space reserved for the vertical and horizontal channel steels, further enhancing the overall structural flexibility. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall clamping fixture in one embodiment;

[0011] Figure 2 This is a schematic diagram of a combination of vertical and horizontal channel steel in one embodiment;

[0012] Figure 3 This is a schematic diagram of the lower channel steel in one embodiment.

[0013] Explanation of reference numerals in the attached drawings: 10, transformer core; 21, vertical channel steel; 22, horizontal channel steel; 23, side channel steel; 31, threaded rod; 32, stepped notch. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., 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.

[0015] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will now be described based on its overall structure.

[0017] Reference Figures 1 to 3 This utility model discloses a clamping fixture for a transformer core 10, including a thickness clamping assembly and a width clamping assembly. The thickness clamping assembly includes three pairs of vertical channel steels 21, two pairs of horizontal channel steels 22, and several threaded rods 31. The three pairs of vertical channel steels 21 respectively fit against two side posts and one central post of the transformer core 10. The three vertical channel steels 21 on the same side are simultaneously supported and fixed in position by the two horizontal channel steels 22. The horizontal channel steels 22 on different sides are penetrated by the threaded rods 31. After the threaded rods 31 are fitted with nuts, the three pairs of vertical channel steels 21 clamp the front side of the transformer core 10. The width clamping assembly includes several pairs of side channel steels 23 and several threaded rods 31. The cross-section of the side channel steel 23 is U-shaped. Both flanges of the side channel steel 23 are provided with several stepped notches 32 on the side that fits the transformer core 10. The threaded rods 31 pass through the web of a pair of side channel steels 23. After the threaded rods 31 are fitted with nuts, the several side channel steels 23 clamp the side of the side column, the side of the middle column, the side of the upper beam, and the side of the lower beam of the transformer core 10.

[0018] As an improvement to the above scheme, the gap between the horizontal channel steels 22 on the same side is greater than the width of the side channel steel 23, and there is a gap between the horizontal channel steel 22 on the same side and the upper and lower beams with a width greater than the height of the side channel steel 23, so that the side channel steel 23 can clamp the middle position corresponding to the transformer core 10.

[0019] As an improvement to the above solution, the distance between the two flanges of the side channel steel 23 is 10-30cm. With this solution, the wider the flanges, the greater the distance between the contact points on both sides when supporting the transformer core 10, resulting in better support. Since the two flanges of the side channel steel 23 are symmetrically distributed, when processing the stepped notch 32, the side channel steel 23 is fixed laterally, and the upper and lower flanges can be cut simultaneously using wire cutting, ensuring good consistency. The stepped notch 32 is adjusted according to the outer contour of the transformer core; simultaneously, different models of transformer cores use different side channel steels 23, with clamping assemblies of different thicknesses and internal spacing.

[0020] As an improvement to the above solution, the vertical channel steel 21 and the horizontal channel steel 22 on the same side are welded and fixed together to form a whole, which is convenient for use.

[0021] As an improvement to the above solution, the upper and lower beams of the transformer core 10 are respectively provided with an upper clamp and a lower clamp. The upper clamp and the lower clamp are penetrated by a threaded rod 31. After the threaded rod 31 is fitted with a nut, the upper clamp and the lower clamp respectively clamp the upper and lower beams of the transformer core 10. The upper clamp and the lower clamp are integrated with the transformer core 10. After the clamping fixture is disassembled, the upper clamp and the lower clamp are still retained.

[0022] The three vertical channel steels 21 and two horizontal channel steels 22 on the same side form an integrated structure, with a compact and slim overall design. When clamping the transformer core 10, only the threaded rod 31 needs to be inserted for fixation, making the operation convenient and efficient. Due to the slim characteristics of the vertical channel steels 21 and horizontal channel steels 22, they do not hinder the subsequent addition of side channel steels 23. The side channel steels 23 only require cutting the edges of the wing plates to form the required stepped notches 32, simplifying the manufacturing process; the notches on the two wing plates provide sufficient clamping for the sides of the transformer core 10, effectively preventing misalignment of the silicon steel sheets. Furthermore, the spacing between the two wing plates of the side channel steel 23 can be flexibly selected according to actual working conditions to accommodate the installation space reserved for the vertical channel steels 21 and horizontal channel steels 22, further enhancing the overall structural flexibility. Figure 1 As shown, it is clear that the width of the side channel steel 23 used to clamp the upper and lower beams is smaller than that used to clamp the side column, indicating that the design can make the most of the space and adjust to a more stable clamping method.

[0023] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A transformer core clamping fixture, characterized in that, include: The thickness clamping assembly includes a thickness clamping assembly and a width clamping assembly. The thickness clamping assembly includes three pairs of vertical channel steels, two pairs of horizontal channel steels, and several threaded rods. The three pairs of vertical channel steels are respectively attached to two side columns and one central column of the transformer core. The three vertical channel steels on the same side are simultaneously supported by the two horizontal channel steels to maintain their orientation. The horizontal channel steels on different sides are penetrated by threaded rods. After the threaded rods are fitted with nuts, the three pairs of vertical channel steels clamp the front side of the transformer core. The width clamping assembly includes several pairs of side channel steels and several threaded rods. The cross-section of the side channel steels is U-shaped. Both flanges of the side channel steels have several stepped notches on the side that is attached to the transformer core. The threaded rods penetrate the web of one pair of side channel steels. After the threaded rods are fitted with nuts, the several side channel steels clamp the side sides of the side columns, the side sides of the central column, the side sides of the upper beam, and the side sides of the lower beam of the transformer core.

2. The transformer core clamping fixture according to claim 1, characterized in that: The gap between the horizontal channel steels on the same side is greater than the width of the side channel steel, and there is a gap between the horizontal channel steels on the same side and the upper and lower beams with a width greater than the height of the side channel steel, so that the side channel steel can clamp the middle position corresponding to the transformer core.

3. The transformer core clamping fixture according to claim 2, characterized in that: The distance between the two flanges of the side channel steel is 10-30cm.

4. The transformer core clamping fixture according to claim 3, characterized in that: The vertical channel steel and the horizontal channel steel on the same side are welded and fixed.

5. The transformer core clamping fixture according to any one of claims 1 to 4, characterized in that: The upper and lower beams of the transformer core are respectively provided with an upper clamp and a lower clamp. The upper clamp and the lower clamp are penetrated by a threaded rod. After the threaded rod is fitted with a nut, the upper clamp and the lower clamp respectively clamp the upper and lower beams of the transformer core.

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