Support structure for fixing post insulator of low-voltage busbar of transformer

Abstract

The utility model relates to a support structure for fixing a post insulator of a low-voltage busbar of a transformer, which comprises a connecting beam for fixing the insulator and a support frame for supporting the connecting beam, the support frame comprises a first rectangular tube, a longitudinal adjusting rod and a transverse adjusting rod, the first rectangular tube is arranged on a transformer oil tank, and the longitudinal adjusting rod is arranged on the first rectangular tube. The longitudinal adjusting rod is arranged on the first rectangular pipe in a penetrating mode and slides up and down along the first rectangular pipe, a plurality of first pin holes are formed in the longitudinal adjusting rod in the length direction, first pins matched with the first pin holes are arranged on the first rectangular pipe in a penetrating mode, the transverse adjusting rod is arranged on the longitudinal adjusting rod, one end of the transverse adjusting rod extends to the position above the radiator, and the other end of the transverse adjusting rod extends to the position above the radiator. The connecting beam is fixed to the end, located above the radiator, of the transverse adjusting rod. According to the utility model, the vertical position of the insulator is adjusted by adjusting the longitudinal adjusting rod, the transverse position of the insulator is adjusted by adjusting the transverse adjusting rod, and the support frame is high in overall universality and more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of transformer equipment, specifically to a support structure for fixing the low-voltage busbar post insulator of a transformer. Background Technology

[0002] The State Grid Corporation of China's Handbook on the Prevention and Control of Common Quality Defects in Transmission and Transformation Projects includes a section on the fixing method of low-voltage busbar post insulators on transformer radiators. It states that in order to prevent quality problems such as oil leakage caused by stress on the radiators, the busbar post insulators should not be directly fixed to the radiators, but a separate fixing bracket must be designed.

[0003] Patent No. CN 205723059 U discloses a fixing device for insulators used in low-voltage busbars of transformers and a transformer. The device includes an insulator fixing plate for fixing the insulators, a bracket, and a bracket fixing plate. The bracket fixing plate is mounted on the transformer tank. The bracket includes a fixed end and a free end. The fixed end of the bracket is located on the bracket fixing plate, and the free end of the bracket spans over the transformer's radiator and is positioned above the radiator. The insulator fixing plate is located on the free end of the bracket. This fixing device reduces on-site assembly difficulty and improves the stability of the low-voltage side lines.

[0004] However, this patent still has some shortcomings. Since the dimensions of the bracket structure are fixed, it needs to be manufactured according to the length and height spacing between the radiator and the transformer on site. Since the length and height spacing between the radiator and the transformer on site varies, it is necessary to measure and manufacture them one by one, which is time-consuming and labor-intensive. Furthermore, when the radiator and the transformer need to be adjusted or changed, the existing bracket will not meet the installation requirements and needs to be remanufactured, which is time-consuming, labor-intensive, and material-intensive, making it inconvenient to use. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a support structure with adjustable height and support length. It is highly versatile and applicable to different lengths, heights, and spacings, making it more convenient to use and saving time, effort, and materials.

[0006] This utility model is achieved through the following technical solution: a support structure for fixing the low-voltage busbar post insulator of a transformer, comprising a connecting beam for fixing the insulator and a support frame for supporting the connecting beam. The support frame includes a first rectangular tube, a longitudinal adjusting rod, and a transverse adjusting rod. The first rectangular tube is disposed on the transformer tank. The longitudinal adjusting rod passes through the first rectangular tube and slides up and down. The longitudinal adjusting rod has multiple first pin holes along its length. The first rectangular tube has first pins that mate with the first pin holes. The transverse adjusting rod is disposed on the longitudinal adjusting rod, with one end extending above the radiator. The connecting beam is fixed to the end of the transverse adjusting rod located above the radiator.

[0007] In this design, the longitudinal adjusting rod slides up and down along the first rectangular tube. By adjusting the longitudinal adjusting rod, the vertical position of the insulator can be adjusted, thus making it suitable for different height gaps between the radiator and the transformer. After the height position is determined, the longitudinal adjusting rod and the first rectangular tube are fixed by the first pin, making it convenient to use.

[0008] As an optimization, a fixed base plate is fixed to the bottom of the first rectangular tube, and the first rectangular tube is fixed to the transformer oil tank through the fixed base plate. This optimization scheme increases the contact area between the bottom of the first rectangular tube and the transformer oil tank by using the fixed base plate, thereby improving the stability and firmness of the support frame.

[0009] As an optimization, the fixed base plate and the transformer oil tank are fastened together with bolts. This optimized solution facilitates the assembly and disassembly of the support frame.

[0010] As an optimization, the support frame further includes a second rectangular tube, which is fixed to the upper end of the longitudinal adjusting rod. The transverse adjusting rod passes through the second rectangular tube and slides left and right. Multiple second pin holes are formed along the length of the transverse adjusting rod, and second pins that mate with the second pin holes pass through the second rectangular tube. In this optimized solution, the transverse adjusting rod slides up and down along the second rectangular tube. By adjusting the transverse adjusting rod, the transverse position of the insulator can be adjusted, thus adapting to different length gaps between radiators and transformers. After the transverse position is determined, the transverse adjusting rod and the second rectangular tube are fixed by the second pins, making it more convenient to use.

[0011] As an optimization, the second rectangular tube and the longitudinal adjusting rod are welded together. This optimized solution integrates the second rectangular tube and the longitudinal adjusting rod into a single unit, resulting in higher structural strength.

[0012] As an optimization, the connecting beam and the lateral adjusting rod are fixed together by bolts. This optimized solution facilitates the assembly and disassembly of the connecting beam.

[0013] As an optimization, the top of the connecting beam has multiple pre-drilled holes along its length, and the insulator and the connecting beam are connected by bolts through these pre-drilled holes. This optimization facilitates the installation of the insulator.

[0014] The beneficial effects of this utility model are as follows: By adjusting the longitudinal adjusting rod, the vertical position of the insulator can be adjusted and positioned, thus adapting to different height distances between radiators and transformers. By adjusting the transverse adjusting rod, the transverse position of the insulator can be adjusted and positioned, thus adapting to different length distances between radiators and transformers. The support frame has strong overall versatility and can be applied to different length and height distances, eliminating the need to measure the distance between each transformer and radiator individually, saving time, effort, and materials during installation. Furthermore, the longitudinal adjusting rod and the first rectangular tube, as well as the transverse adjusting rod and the second rectangular tube, are fixed with pins, making it more convenient to use. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 The front and side views are of the longitudinal adjusting rod and the second rectangular tube.

[0018] Figure 4 This is a front view of the lateral adjustment rod;

[0019] As shown in the figure:

[0020] 1. Connecting beam; 11. Reserved screw hole; 2. Fixed base plate; 3. First rectangular tube; 31. First pin; 4. Longitudinal adjusting rod; 41. First pin hole; 5. Second rectangular tube; 51. Second pin; 6. Lateral adjusting rod; 61. Second pin hole. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0022] like Figures 1-4 As shown, a support structure for fixing low-voltage busbar post insulators of a transformer includes a connecting beam 1 for fixing the insulators and a support frame for supporting the connecting beam 1. The support frame includes a first rectangular tube 3, a second rectangular tube 5, a longitudinal adjusting rod 4, and a transverse adjusting rod 6.

[0023] The first rectangular tube 3 is mounted on the transformer oil tank. Specifically, the first rectangular tube 3 extends vertically, and a fixing base plate 2 is fixedly connected to the bottom of the first rectangular tube 3. The first rectangular tube 3 is fixed to the transformer oil tank by the fixing base plate 2. In this embodiment, the fixing base plate 2 and the first rectangular tube 3 are welded together, and the fixing base plate 2 and the top of the transformer oil tank are fixed together by bolts.

[0024] The longitudinal adjusting rod 4 passes through the first rectangular tube 3 and slides up and down. Multiple first pin holes 41 are formed along the length of the longitudinal adjusting rod 4. First pins 31, which mate with the first pin holes 41, pass through the first rectangular tube 3. In this embodiment, the lower end of the longitudinal adjusting rod 4 passes inside the vertical first rectangular tube 3. The multiple first pin holes are evenly distributed, and two first pins 31 pass through the first rectangular tube 3, passing through two of the first pin holes 41, thereby fixing the longitudinal adjusting rod and the first rectangular tube more securely.

[0025] The lateral adjusting rod 6 is mounted on the longitudinal adjusting rod 4. Specifically, the second rectangular tube 5 is fixed to the upper end of the longitudinal adjusting rod 4. In this embodiment, the second rectangular tube 5 extends laterally, and the upper ends of the second rectangular tube 5 and the longitudinal adjusting rod 4 are welded together, resulting in higher structural strength. The lateral adjusting rod 6 passes through the second rectangular tube 5 and slides left and right. Multiple second pin holes 61 are formed along the length of the lateral adjusting rod 6, and second pins 51 that mate with the second pin holes pass through the second rectangular tube 5. In this embodiment, the multiple second pin holes are evenly distributed, and two second pins 51 pass through the second rectangular tube 5. The two second pins 51 pass through two of the second pin holes 61, thereby fixing the lateral adjusting rod and the second rectangular tube more firmly and stably.

[0026] One end of the lateral adjusting rod 6 extends above the radiator, and the connecting beam 1 is fixed to the end of the lateral adjusting rod 6 located above the radiator. In this embodiment, the support frame supports two connecting beams 1, and each end of the connecting beam 1 is provided with one of the aforementioned support frames to ensure the stability of the connecting beam support. The connecting beam 1 and the lateral adjusting rod 6 are fixed together by bolts, facilitating the assembly and disassembly of the connecting beam.

[0027] In this embodiment, the connecting beam 1 is a channel steel. The top of the connecting beam 1 has multiple reserved screw holes 11 along its length. The insulator and the reserved screw holes of the connecting beam are connected by bolts, making installation more convenient.

[0028] Working principle: By sliding the longitudinal adjusting rod 4 up and down, the vertical position of the insulator can be adjusted and positioned, thus adapting to different height gaps between the radiator and the transformer. After the height position is determined, the longitudinal adjusting rod 4 and the first rectangular tube 3 are fixed by passing the first pin 31 through the first pin hole 41.

[0029] By adjusting the lateral adjustment rod 6, the lateral position of the insulator can be adjusted and positioned to accommodate different length gaps between the radiator and the transformer. After the lateral position is determined, the lateral adjustment rod and the second rectangular tube are fixed by passing the second pin 51 through the second pin hole 61. The insulator and the reserved screw hole 11 of the connecting beam 1 are bolted together.

[0030] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A support structure for fixing low-voltage busbar post insulators of a transformer, comprising a connecting beam (1) for fixing the insulators and a support frame for supporting the connecting beam, characterized in that: The support frame includes a first rectangular tube (3), a longitudinal adjusting rod (4), and a transverse adjusting rod (6). The first rectangular tube (3) is installed on the transformer oil tank. The longitudinal adjusting rod (4) passes through the first rectangular tube (3) and slides up and down. The longitudinal adjusting rod (4) has multiple first pin holes (41) along its length. The first rectangular tube (3) has a first pin (31) that mates with the first pin holes. The transverse adjusting rod (6) is installed on the longitudinal adjusting rod. One end of the transverse adjusting rod extends above the radiator. The connecting beam (1) is fixed to the end of the transverse adjusting rod located above the radiator.

2. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 1, characterized in that: The bottom of the first rectangular tube (3) is fixedly connected to a base plate (2), and the first rectangular tube is fixed to the transformer oil tank through the base plate.

3. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 2, characterized in that: The fixed base plate (2) and the transformer oil tank are fixedly connected by bolts.

4. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 1, characterized in that: The support frame also includes a second rectangular tube (5), which is fixed to the upper end of the longitudinal adjusting rod (4). The transverse adjusting rod (6) passes through the second rectangular tube (5) and slides left and right. Multiple second pin holes (61) are opened on the transverse adjusting rod (6) along the length direction. Second pins (51) that cooperate with the second pin holes are passed through the second rectangular tube (5).

5. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 4, characterized in that: The second rectangular tube (5) and the longitudinal adjusting rod (4) are welded and fixed.

6. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 1, characterized in that: The connecting beam (1) and the transverse adjusting rod (6) are fixed together by bolts.

7. The support structure for fixing the low-voltage busbar post insulator of a transformer according to claim 1, characterized in that: The top of the connecting beam (1) has multiple reserved screw holes (11) along the length direction, and the insulator and the reserved screw holes of the connecting beam are connected by bolts.

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