High-capacity main transformer clamp

Abstract

The utility model discloses a large-capacity main transformer clamp, which relates to the field of transformer clamps and comprises an upper clamp and a lower clamp, each of the upper clamp and the lower clamp consists of a first U-shaped frame and a second U-shaped frame, two clamping connecting pieces are symmetrically and fixedly mounted on the first U-shaped frame, each clamping connecting piece consists of a connecting rod and a first latch, and the first latch is fixedly mounted on the second U-shaped frame. The first clamping tooth is fixedly installed at one end of the connecting rod, two supporting limiting pieces are symmetrically and fixedly installed in the second U-shaped frame, each supporting limiting piece is composed of a limiting guide rod and a supporting spring, the limiting guide rods are sleeved with the supporting springs, and clamping fixing pieces are movably installed in the second U-shaped frame and located on the two supporting limiting pieces. The clamping fixing piece is composed of a connecting base plate, an installing base plate and second clamping teeth, the clamping connecting piece, the supporting limiting piece and the clamping fixing piece are arranged on the upper clamping piece and the lower clamping piece, the operation process is simple and convenient, and the stability of the upper clamping piece and the lower clamping piece for clamping the iron core is good.

Description

Technical Field

[0001] This utility model relates to the field of transformer clamps, and particularly to clamps for large-capacity main transformers. Background Technology

[0002] Large-capacity main transformers are key equipment in power systems for voltage conversion and power transmission. Their capacity typically ranges from several thousand kilovolt-amperes (kVA) to above, and they are widely used in large power plants, transmission and transformation projects, and industrial and mining enterprises. Employing an oil-immersed structure, they feature high voltage levels, strong load capacity, high efficiency, and high reliability. Their primary function is to step up power transmission to reduce line losses and improve transmission efficiency, while simultaneously performing voltage reduction distribution to ensure users receive a safe and stable low-voltage power supply. Transformer clamps are metal components used to fix the core and windings, typically installed on the top or side of the transformer tank. Made of robust metal materials, they can withstand various forces and vibrations during transformer operation, ensuring the core and windings maintain a stable position during operation.

[0003] The existing patent application CN202420369400.9 proposes a transformer clamp with a clamping structure, which directly clamps the silicon steel sheet of the iron core by pulling the clamping plate with the elastic force of the spring. However, this has certain drawbacks. When subjected to vibration, the spring is prone to slight elastic deformation, which can cause the clamping plate to loosen and thus fail to clamp the silicon steel sheet of the iron core stably, resulting in poor clamping stability. Therefore, this application proposes a clamp for large-capacity main transformers to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a clamping component for a large-capacity main transformer, which 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 large-capacity main transformer clamping component includes an upper clamping component and a lower clamping component. Both the upper and lower clamping components are composed of a first U-shaped frame and a second U-shaped frame. Two clamping connectors are symmetrically fixedly installed on the first U-shaped frame. Each clamping connector consists of a connecting rod and a first locking tooth. The first locking tooth is fixedly installed at one end of the connecting rod. Two supporting limiting components are symmetrically fixedly installed inside the second U-shaped frame. Each supporting limiting component consists of a limiting guide rod and a supporting spring. The supporting spring is sleeved on the limiting guide rod. A clamping fixing component is movably installed inside the second U-shaped frame and on the two supporting limiting components. Each clamping fixing component consists of a connecting base plate, a mounting base plate, and a second locking tooth. There are two mounting base plates, which are symmetrically fixedly installed at both ends of the connecting base plate. The second locking tooth is fixedly installed at one end of the mounting base plate.

[0007] Preferably, two connecting slots are symmetrically formed on the inner sidewalls of the second U-shaped frame on the upper and lower clamps.

[0008] Preferably, the clamping connector passes through the connecting slot opened on the inner side wall of the second U-shaped frame, and the connecting rod on the clamping connector is fixedly installed at one end of the first U-shaped frame by bolts. The first locking teeth are a plurality of those teeth and are evenly fixedly installed at one end of the connecting rod.

[0009] Preferably, the limiting guide rod on the supporting limiting member is fixedly installed on the upper and lower walls of the second U-shaped frame.

[0010] Preferably, the connecting base plate on the clamping and fixing member has two symmetrical mounting through holes. The connecting base plate is slidably mounted on the limiting guide rod on the supporting limiting member through the mounting through holes, and the connecting base plate is located above the supporting spring.

[0011] Preferably, the second locking teeth are a plurality of each other and are evenly fixedly installed at one end of the mounting base plate, and the second locking teeth simultaneously engage with the first locking teeth on the clamping connector.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting clamping connectors, support limiting members, and clamping fixing members on the upper and lower clamping parts, the clamping connectors pass through the second U-shaped frame, and the clamping fixing members engage with the clamping connectors under the limiting support force of the support limiting members. This allows the first and second U-shaped frames to clamp the iron core. Not only is the operation simple and convenient, but the stability of the clamping of the iron core by the upper and lower clamping parts is also good. Even if the support spring on the support limiting member is subjected to vibration force, it will produce slight elastic deformation, which will cause the clamping fixing members to wobble slightly up and down. However, when the clamping fixing members wobble slightly up and down, they will not completely disengage from the clamping connectors, and thus the upper and lower clamping parts will not loosen. 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 showing the positional relationship between the transformer clamp, clamping connector, supporting limiting member, and clamping fixing member of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the first U-shaped frame and the clamping connector of this utility model;

[0017] Figure 4 This is a structural schematic diagram of the second U-shaped frame, the supporting and limiting component, and the clamping and fixing component of this utility model.

[0018] In the diagram: 1. Upper clamp; 2. Lower clamp; 3. Clamping connector; 4. Support limiting component; 5. Clamping fixing component; 6. First U-shaped frame; 7. Second U-shaped frame; 8. Connecting rod; 9. First locking tooth; 10. Limiting guide rod; 11. Mounting through hole; 12. Support spring; 13. Connecting base plate; 14. Mounting base plate; 15. Second locking tooth; 16. Connecting slot. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the large-capacity main transformer clamp includes an upper clamp 1 and a lower clamp 2. Both the upper clamp 1 and the lower clamp 2 are composed of a first U-shaped frame 6 and a second U-shaped frame 7. Two clamping connectors 3 are symmetrically fixedly installed on the first U-shaped frame 6. Each clamping connector 3 consists of a connecting rod 8 and a first locking tooth 9. The first locking tooth 9 is fixedly installed at one end of the connecting rod 8. Two supporting limiting members 4 are symmetrically fixedly installed inside the second U-shaped frame 7. Each supporting limiting member 4 consists of a limiting guide rod 10 and a supporting spring 12. The supporting spring 12 is sleeved on the limiting guide rod 10. Clamping fixing members 5 are movably installed inside the second U-shaped frame 7 and on the two supporting limiting members 4. Each clamping fixing member 5 consists of a connecting base plate 13, a mounting base plate 14, and a second locking tooth 15. There are two mounting base plates 14, which are symmetrically fixedly installed at both ends of the connecting base plate 13. The second locking tooth 15... Two connecting slots 16 are symmetrically opened on the inner side wall of the second U-shaped frame 7 on the upper clamp 1 and the lower clamp 2, which are fixedly installed on one end of the mounting base plate 14. When the first U-shaped frame 6 and the second U-shaped frame 7 on the upper clamp 1 and the lower clamp 2 clamp the iron core, the clamping fixing member 5 is pushed down first. At this time, the support spring 12 on the support limiting member 4 will be compressed. Then the first U-shaped frame 6 and the second U-shaped frame 7 can clamp the iron core, and at the same time, the clamping connecting member 3 passes through the connecting slot 16 opened on the second U-shaped frame 7. After the first U-shaped frame 6 and the second U-shaped frame 7 are clamped on the iron core, the clamping fixing member 5 is released. At this time, under the elastic force of the support spring 12 on the support limiting member 4, the clamping fixing member 5 will engage with the clamping connecting member 3. At this time, the first U-shaped frame 6 and the second U-shaped frame 7 are fixedly clamped on the iron core.

[0021] By setting clamping connector 3, support limiting member 4, and clamping fixing member 5 on the upper clamp 1 and lower clamp 2, the clamping connector 3 passes through the second U-shaped frame 7, and the clamping fixing member 5 engages with the clamping connector 3 under the limiting support force of the support limiting member 4, so that the first U-shaped frame 6 and the second U-shaped frame 7 clamp the iron core. This not only makes the operation simple and convenient, but also makes the clamping stability of the upper clamp 1 and lower clamp 2 on the iron core better. Even if the support spring 12 on the support limiting member 4 is subjected to vibration force, it will produce slight elastic deformation, which will cause the clamping fixing member 5 to sway slightly up and down. However, when the clamping fixing member 5 sways slightly up and down, it will not completely disengage from the clamping connector 3, so the upper clamp 1 and lower clamp 2 will not loosen.

[0022] Specifically, the clamping connector 3 passes through the connecting slot 16 opened on the inner wall of the second U-shaped frame 7. The connecting rod 8 on the clamping connector 3 is fixedly installed on one end of the first U-shaped frame 6 by bolts. Several first locking teeth 9 are evenly fixedly installed on one end of the connecting rod 8. The limiting guide rod 10 on the supporting limiting member 4 is fixedly installed on the upper and lower walls of the second U-shaped frame 7. Two mounting through holes 11 are symmetrically opened on the connecting base plate 13 on the clamping fixing member 5. The connecting base plate 13 is slidably installed on the limiting guide rod 10 on the supporting limiting member 4 through the mounting through holes 11. The connecting base plate 13 is also located above the supporting spring 12. Several second locking teeth 15 are evenly fixedly installed on one end of the mounting base plate 14. The second locking teeth 15 simultaneously engage with the first locking teeth 9 on the clamping connector 3. Before the clamping connector 3 passes through the connecting slot 16 on the second U-shaped frame 7, in order to avoid the clamping connector 3 being blocked by the clamping fixing member 5, the clamping fixing member 5 can be pushed downward on the supporting limiting member 4 first, so as to avoid the second locking tooth 15 on the clamping fixing member 5 blocking one side of the connecting slot 16. When the clamping fixing member 5 is pushed downward on the supporting limiting member 4, the connecting base plate 13 will slide on the limiting guide rod 10. When the clamping connector 3 passes through the connecting slot 16 on the second U-shaped frame 7, and the first U-shaped frame 6 and the second U-shaped frame 7 clamp the iron core, the clamping fixing member 5 is released. At this time, under the elastic force of the supporting spring 12, the clamping fixing member 5 will slide upward. Finally, when the second locking tooth 15 engages with the first locking tooth 9, the clamping and fixing of the iron core using the upper clamping member 1 and the lower clamping member 2 is completed.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Large-capacity main transformer clamping element, comprising an upper clamping element (1) and a lower clamping element (2), both of which are composed of a first U-shaped frame (6) and a second U-shaped frame (7), characterized in that: Two clamping connectors (3) are symmetrically fixedly installed on the first U-shaped frame (6). The clamping connectors (3) are composed of a connecting rod (8) and a first locking tooth (9). The first locking tooth (9) is fixedly installed at one end of the connecting rod (8). Two supporting limiting members (4) are symmetrically fixedly installed inside the second U-shaped frame (7). The supporting limiting members (4) are composed of a limiting guide rod (10) and a supporting spring (12). The supporting spring (12) is sleeved on the limiting guide rod (10). A clamping fixing member (5) is movably installed inside the second U-shaped frame (7) and on the two supporting limiting members (4). The clamping fixing member (5) is composed of a connecting base plate (13), a mounting base plate (14) and a second locking tooth (15). There are two mounting base plates (14) and they are symmetrically fixedly installed at both ends of the connecting base plate (13). The second locking tooth (15) is fixedly installed at one end of the mounting base plate (14).

2. The bulk main transformer clamp of claim 1, wherein: Two connecting slots (16) are symmetrically opened on the inner side wall of the second U-shaped frame (7) on the upper clamp (1) and lower clamp (2).

3. The bulk main transformer clamp of claim 2, wherein: The clamping connector (3) passes through the connecting slot (16) opened on the inner side wall of the second U-shaped frame (7). The connecting rod (8) on the clamping connector (3) is fixedly installed at one end of the first U-shaped frame (6) by bolts. The first locking teeth (9) are a plurality of them and are evenly fixedly installed at one end of the connecting rod (8).

4. The large capacity main transformer clamp of claim 3, wherein: The limiting guide rod (10) on the supporting limiting member (4) is fixedly installed on the upper and lower walls of the second U-shaped frame (7).

5. The mass main transformer clamp of claim 4, wherein: Two mounting through holes (11) are symmetrically opened on the connecting base plate (13) on the clamping and fixing member (5). The connecting base plate (13) is slidably mounted on the limiting guide rod (10) on the supporting limiting member (4) through the mounting through holes (11), and the connecting base plate (13) is located above the supporting spring (12).

6. The large capacity main transformer clamp of claim 5, wherein: The second tooth (15) is a plurality of and uniformly fixedly installed on one end of the mounting base plate (14), and the second tooth (15) simultaneously engages with the first tooth (9) on the clamping connector (3).

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