Oil-immersed amorphous alloy power transformer

Abstract

The utility model discloses an oil-immersed amorphous alloy power transformer, which belongs to the technical field of power transformers, and comprises a transformer base, a transformer main body fixedly arranged at the upper end of the transformer base, and a pressing plate symmetrically and fixedly arranged at the lower end of the transformer base, strip-shaped grooves used for allowing the pressing plates to be installed in a penetrating mode are formed in the surfaces of the two supporting bases, and locking assemblies matched with the first bolts are arranged on the pressing plates. The beneficial effects of the utility model are that by arranging the pressing plate and the locking assembly, on one hand, under the action of the pressing plate, the contact area is increased and the installation stability is ensured, and on the other hand, the wedge-shaped block in the locking assembly is matched with the first bolt, and in the bolt tightening process, the end part of the bolt extrudes the wedge-shaped surface of the wedge-shaped block, so that the installation stability is ensured. And the mounting block is pushed to move towards the side wall of the supporting seat and abut against the anti-skid plate, anti-skid lines on the surface of the anti-skid plate can improve the friction coefficient of the mounting block and the supporting seat, and the mounting firmness is further improved.

Description

Technical Field

[0001] This utility model relates to the field of power transformer technology, and in particular to an oil-immersed amorphous alloy power transformer. Background Technology

[0002] In the power transmission and distribution process, oil-immersed amorphous alloy power transformers are widely used in industrial plants, urban power distribution networks, and large residential areas due to their core advantages of low loss and high energy efficiency.

[0003] However, numerous technical challenges remain during actual installation, fixing, and long-term operation. Traditional oil-immersed amorphous alloy power transformers often use bolts to connect the support base to the mounting frame (or foundation). During transformer operation, periodic vibrations occur (originating from magnetostriction of the core and electromagnetic forces in the windings). Long-term vibration can easily cause the bolts in the traditional fixing structure to loosen. Traditional fixing methods rely solely on the thread friction of the bolts themselves for locking, lacking additional anti-loosening mechanisms. Once the bolts loosen, gaps appear between the transformer and the support base, and between the support base and the mounting frame, further exacerbating vibration transmission and posing safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide an oil-immersed amorphous alloy power transformer to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oil-immersed amorphous alloy power transformer includes a transformer base and a transformer body fixedly disposed on the upper end of the transformer base. Two support seats are symmetrically fixedly disposed on the lower end of the transformer base. The two support seats are fixedly installed by a first bolt. The surfaces of the two support seats are formed with adjustment grooves for the first bolt to pass through and be installed.

[0007] It also includes a pressure plate: the surfaces of the two support seats are formed with strip grooves for through-mounting the pressure plate, the surfaces of the pressure plate are formed with two first through holes that mate with the first bolt, and the pressure plate is provided with a locking assembly that mates with the first bolt.

[0008] As a further description of the above technical solution:

[0009] The locking assembly includes a mounting block and a wedge block. The mounting block has a hollow structure in the middle, and the wedge block is fixed inside the hollow structure of the mounting block with the wedge face upward.

[0010] As a further description of the above technical solution:

[0011] The pressure plate has two sliding grooves formed on its surface for mounting blocks to fit together.

[0012] As a further description of the above technical solution:

[0013] The two support bases have an I-shaped cross section and both side walls are fixed with anti-slip plates for mounting blocks to abut against. The surface of the anti-slip plates is formed with anti-slip texture.

[0014] As a further description of the above technical solution:

[0015] It also includes an abutment plate for abutting the anti-slip plate, the abutment plate being fixedly connected to the mounting block by a second bolt, the mounting block having a mounting groove formed on its side wall for mounting the abutment plate, and the abutment plate having a second through hole formed on its surface to mate with the second bolt.

[0016] As a further description of the above technical solution:

[0017] The second through hole is a countersunk hole.

[0018] As a further description of the above technical solution:

[0019] Two docking blocks are fixedly provided on the upper end of each of the two support bases. The docking ends of the docking blocks are chamfered. The lower end of the transformer base is formed with a docking groove that matches the docking blocks.

[0020] As a further description of the above technical solution:

[0021] The docking block is fixedly connected to the transformer base by a third bolt. The transformer base has a side hole for the third bolt to pass through and be installed, and the docking block has a threaded hole for the third bolt to be threaded.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] In this invention, by setting a pressure plate and a locking assembly, on the one hand, the contact area is increased under the action of the pressure plate to ensure the stability of the installation; on the other hand, the wedge block in the locking assembly cooperates with the first bolt. During the bolt tightening process, the bolt end squeezes the wedge surface of the wedge block, pushing the mounting block to move towards the side wall of the support base and press against the anti-slip plate. The anti-slip texture on the surface of the anti-slip plate can increase the friction coefficient between the mounting block and the support base, further improving the stability of the installation.

[0024] In this invention, by setting a rubber abutment plate, when the mounting block is pressed against the anti-slip plate, the abutment plate is compressed and generates a reverse elastic force, so that the edge of the wedge block is always in close contact with the outer surface of the first bolt. Even if slight wear occurs during long-term operation, the elasticity of the abutment plate can automatically compensate for the gap and maintain a stable locking force. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of the transformer according to an embodiment of the present invention is shown;

[0026] Figure 2 This diagram shows the assembled structure of the support base and components according to Embodiment 1 of the present invention;

[0027] Figure 3 This diagram shows a partial structural schematic of the support base and components in an exploded state according to Embodiment 1 of the present invention;

[0028] Figure 4 A schematic diagram of the mounting block and wedge block structure according to Embodiment 1 of this utility model is shown;

[0029] Figure 5 A schematic diagram of the anti-slip plate installation state structure according to Embodiment 1 of this utility model is shown;

[0030] Figure 6 A schematic diagram of the pressure plate structure according to Embodiment 2 of this utility model is shown;

[0031] Figure 7 An exploded view of the mounting block, abutment plate, and second bolt structure provided according to Embodiment 3 of this utility model is shown.

[0032] Figure 8 This diagram shows a structural schematic of the support base and transformer base after assembly according to Embodiment 4 of the present invention;

[0033] Figure 9 An exploded view of the support base and transformer base provided according to Embodiment 4 of this utility model is shown;

[0034] Figure 10 A schematic diagram of the support base and docking block structure provided according to Embodiment 4 of this utility model is shown.

[0035] Legend: 1. Transformer body; 2. Transformer base; 3. Support seat; 4. Pressure plate; 5. Strip groove; 6. Anti-slip plate; 7. First bolt; 8. Mounting block; 9. Wedge block; 10. Sliding groove; 11. First through hole; 12. Mounting groove; 13. Abutment plate; 14. Second bolt; 15. Second through hole; 16. Adjustment groove; 17. Third bolt; 18. Connecting block; 19. Connecting groove. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Example

[0037] like Figures 1-5 As shown, the oil-immersed amorphous alloy power transformer includes a transformer base 2 and a transformer body 1 fixedly mounted on the upper end of the transformer base 2. Two support seats 3 are symmetrically fixed at the lower end of the transformer base 2. The cross-section of the two support seats 3 is I-shaped. The two support seats 3 are fixedly installed by first bolts 7. The surfaces of the two support seats 3 are formed with adjustment grooves 16 for the first bolts 7 to pass through. In the actual installation process, the workers pass the first bolts 7 through the adjustment grooves 16. Through the adjustment grooves 16, the first bolts 7 can move in the adjustment grooves 16 to adjust the installation position, improving the portability during the installation process. When installing the transformer, large equipment is needed to hoist the transformer to the designated installation height (i.e., the pre-prepared mounting frame), and then fix it to the mounting holes reserved on the mounting frame by the first bolts 7. Therefore, under the action of the adjustment grooves 16, the position of the first bolts 7 can be appropriately adjusted so that the first bolts 7 are aligned with the mounting holes, improving the installation efficiency.

[0038] It also includes a pressure plate 4: the surfaces of the two support bases 3 are formed with strip grooves 5 for the pressure plate 4 to pass through and be installed. The inner bottom surface of the strip grooves 5 is flush with the surface of the I-shaped support base 3. The surface of the pressure plate 4 is formed with two first through holes 11 that cooperate with the first bolts 7. During installation, the pressure plate 4 is first installed by passing through the strip grooves 5. The pressure plate 4 can be moved in the strip grooves 5 to adjust the installation position in cooperation with the first bolts 7. Then, the first bolts 7 are passed through the first through holes 11 and the adjustment grooves 16 in sequence and fixedly connected to the installation holes reserved on the mounting bracket. Under the pressure of tightening the first bolts 7, the pressure plate 4 is pressed tightly against the surface of the support base 3, which improves the stability of the installation. The pressure plate 4 is provided with a locking component that cooperates with the first bolts 7.

[0039] Furthermore, the locking assembly includes a mounting block 8 and a wedge block 9. The mounting block 8 has a hollow structure in the middle, and the wedge block 9 is fixedly disposed inside the hollow structure of the mounting block 8 with its wedge-shaped surface facing upwards. During the tightening of the first bolt 7, the end of the first bolt 7 will press against the surface of the wedge block 9, thereby causing the mounting block 8 to move towards the side wall of the I-shaped support 3 (refer to the attached instruction manual). Figure 2-4 Therefore, under the tightening action of the first bolt 7, the mounting block 8 will press against the side wall of the I-shaped support 3, further improving the stability of the installation.

[0040] Furthermore, both sides of the two I-shaped support bases 3 are fixed with anti-slip plates 6 for mounting blocks 8 to abut against. The surface of the anti-slip plates 6 is formed with anti-slip texture. With the cooperation of the mounting blocks 8 and the anti-slip plates 6, the coefficient of friction between the two is increased, thereby improving the stability of the mounting blocks 8 after abutting.

[0041] Example 2 differs from Example 1 in that:

[0042] Specifically, such as Figure 6 As shown, the pressure plate 4 has two sliding grooves 10 formed on its surface for mounting the mounting block 8, so that the mounting block 8 can slide along the sliding grooves 10 and avoid the mounting block 8 from shifting during movement.

[0043] Example 3 differs from Example 2 in that:

[0044] Specifically, such as Figure 7 As shown, it further includes an abutment plate 13 for abutting the anti-slip plate 6. The abutment plate 13 is made of rubber and has elasticity. The abutment plate 13 is fixedly connected to the mounting block 8 by the second bolt 14. The side wall of the mounting block 8 is formed with a mounting groove 12 for mounting the abutment plate 13. The surface of the abutment plate 13 is formed with a second through hole 15 that mates with the second bolt 14. During the tightening of the first bolt 7, the wedge block 9 is squeezed, causing the mounting block 8 to move. During the movement of the mounting block 8, the abutment plate 13 and the anti-slip plate 6 will come into contact with each other. As the first bolt 7 is tightened continuously, the abutment plate 13 will be compressed. As the first bolt 7 is tightened continuously, the outer surface of the first bolt 7 will abut with the edge of the wedge block 9. After the first bolt 7 is fully tightened, because the rubber material of the abutment plate 13 has elasticity, it will give the mounting block 8 a reverse force, so that the edge of the wedge block 9 always abuts against the outside of the first bolt 7, effectively preventing the first bolt 7 from loosening.

[0045] Furthermore, the second through hole 15 is a countersunk hole, which allows the end of the second bolt 14 to be inserted into the countersunk hole, improving aesthetics.

[0046] Example 4 differs from Example 3 in that:

[0047] Specifically, such as Figures 8-10 As shown, two connecting blocks 18 are fixedly provided on the upper ends of the two support bases 3. The connecting ends of the connecting blocks 18 are chamfered. The lower end of the transformer base 2 is formed with a connecting groove 19 that matches the connecting blocks 18. This can improve the quick positioning and installation of the support bases 3, ensure the symmetry of the two support bases 3 after installation, and make the force uniform. It can also improve the force strength on the horizontal plane after the support bases 3 and the transformer base 2 are connected, and ensure the connection strength between the support bases 3 and the transformer base 2.

[0048] Furthermore, the docking block 18 is fixedly connected to the transformer base 2 by the third bolt 17. The side wall of the transformer base 2 is provided with a side hole for the third bolt 17 to pass through and install. The docking block 18 is provided with a threaded hole for the third bolt 17 to be threaded. After the docking block 18 and the docking groove 19 of the transformer base 2 are docked, they can be fixed by the third bolt 17. In actual use, after the support base 3 is docked and installed with the transformer base 2, it can be further reinforced by welding.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An oil-immersed amorphous alloy power transformer, comprising a transformer base (2) and a transformer body (1) fixedly disposed on the upper end of the transformer base (2), wherein two support seats (3) are symmetrically fixedly disposed on the lower end of the transformer base (2), characterized in that, The two support seats (3) are fixedly installed by the first bolt (7), and the surfaces of the two support seats (3) are formed with adjustment grooves (16) for the first bolt (7) to pass through and install. It also includes a pressure plate (4): the surfaces of the two support seats (3) are formed with strip grooves (5) for the pressure plate (4) to be installed through, the surfaces of the pressure plate (4) are formed with two first through holes (11) that cooperate with the first bolt (7), and the pressure plate (4) is provided with a locking assembly that cooperates with the first bolt (7).

2. The oil-immersed amorphous alloy power transformer according to claim 1, characterized in that, The locking assembly includes a mounting block (8) and a wedge block (9). The mounting block (8) has a hollow structure in the middle, and the wedge block (9) is fixed inside the hollow structure of the mounting block (8) with the wedge surface facing upward.

3. The oil-immersed amorphous alloy power transformer according to claim 2, characterized in that, The pressure plate (4) has two sliding grooves (10) formed on its surface for mounting blocks (8) to be installed together.

4. The oil-immersed amorphous alloy power transformer according to claim 2 or 3, characterized in that, The two support bases (3) have an I-shaped cross section and both side walls are fixed with anti-slip plates (6) for mounting blocks (8) to abut against. The surface of the anti-slip plates (6) is formed with anti-slip texture.

5. The oil-immersed amorphous alloy power transformer according to claim 4, characterized in that, It also includes an abutment plate (13) for abutting the anti-slip plate (6), the abutment plate (13) being fixedly connected to the mounting block (8) by a second bolt (14), the mounting block (8) having a mounting groove (12) formed on its side wall for mounting the abutment plate (13), and the abutment plate (13) having a second through hole (15) formed on its surface to cooperate with the second bolt (14).

6. The oil-immersed amorphous alloy power transformer according to claim 5, characterized in that, The second through hole (15) is a countersunk hole.

7. The oil-immersed amorphous alloy power transformer according to claim 1, characterized in that, Two docking blocks (18) are fixedly provided on the upper end of each of the two support bases (3). The docking ends of the docking blocks (18) are chamfered. The lower end of the transformer base (2) is formed with a docking groove (19) that matches the docking blocks (18).

8. The oil-immersed amorphous alloy power transformer according to claim 7, characterized in that, The docking block (18) is fixedly connected to the transformer base (2) by the third bolt (17). The transformer base (2) has a side hole for the third bolt (17) to pass through and be installed. The docking block (18) has a threaded hole for the third bolt (17) to be threaded.

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