An adjustable structure for a power transformer lead support

Abstract

This utility model discloses an adjustment structure for a power transformer lead support, belonging to the field of transformer equipment. A first lead support is positioned relative to one end of a third lead support via a first set of adjustment components, and a second lead support is positioned relative to the other end of the third lead support via a second set of adjustment components. A third set of adjustment components is positioned on the side of the third lead support closer to the first lead support, and a fourth set of adjustment components is positioned on the side of the third lead support closer to the second lead support. The first and third sets of adjustment components are positioned opposite each other, as are the second and fourth sets. A first connecting member is provided between the first and third sets of adjustment components, penetrating both sets. A second connecting member is provided between the second and fourth sets of adjustment components, also penetrating both sets.

Description

Technical Field

[0001] This utility model belongs to the field of transformer equipment, and specifically relates to an adjustment structure for a power transformer lead support. Background Technology

[0002] In the field of power transformer manufacturing, the installation accuracy of the lead-wire brackets plays a crucial role in the overall performance and safe operation of the transformer. However, in actual production, due to various factors, the installation position of the lead-wire brackets often deviates.

[0003] On the one hand, transformer production involves the processing and assembly of numerous components, and dimensional differences are inevitable during the processing of individual parts. Components processed by different batches, different processing equipment, or even different operators will have inconsistent dimensional accuracy. On the other hand, during the assembly process, fitting errors accumulate continuously. From the basic assembly of the iron core and windings to the installation of the lead-wire brackets, even minor deviations in each step can ultimately lead to the lead-wire brackets not meeting the design requirements.

[0004] Such installation deviations can have multiple negative impacts on transformers. First, they affect the precision of the product design, causing the transformer's electrical performance to fail to meet the expected design specifications. Second, they reduce the product's short-circuit withstand capability. In the event of a short-circuit fault, the lead support may be unable to withstand the enormous electromagnetic forces, leading to lead displacement or even damage, thus affecting the normal operation of the transformer. Furthermore, installation deviations can also cause vibrations during transformer operation. Prolonged vibration not only generates noise pollution but also accelerates component aging and wear, seriously jeopardizing the safe operation of the product.

[0005] Traditionally, lead bracket installation deviations are corrected by adjusting the thickness of the insulating paperboard. However, this method has several drawbacks: it requires pre-preparing various specifications of insulating paperboard, increasing the difficulty and cost of inventory management; on-site adjustments are time-consuming and labor-intensive, highly dependent on operator experience, and the adjustment results are difficult to guarantee; the precision of paperboard cutting is difficult to control, potentially affecting insulation reliability; and repeated adjustments result in the waste of a large amount of insulating paperboard, further increasing production costs. Therefore, a new technology is urgently needed to solve the problem of transformer lead bracket installation deviations. Utility Model Content

[0006] The purpose of this invention is to overcome the problem of transformer lead bracket installation deviation and to propose an adjustment structure for power transformer lead brackets.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A power transformer lead support adjustment structure includes a first set of adjustment components, a second set of adjustment components, and a third set of adjustment components. The first set of adjustment components is disposed on the first lead support, and the second set of adjustment components is disposed on the second lead support.

[0009] The first lead bracket and the second lead bracket are disposed on the same side of the third lead bracket. The first lead bracket is disposed relative to one end of the third lead bracket by a first set of adjustment components, and the second lead bracket is disposed relative to the other end of the third lead bracket by a second set of adjustment components.

[0010] The third set of adjustment components is located on the side of the third lead bracket closer to the first lead bracket, and the fourth set of adjustment components is located on the side of the third lead bracket closer to the second lead bracket.

[0011] The first set of adjustment components is set relative to the third set of adjustment components, and the second set of adjustment components is set relative to the fourth set of adjustment components;

[0012] A first connector is provided between the first group of adjustment components and the third group of adjustment components, and the first connector passes through the first group of adjustment components and the third group of adjustment components. A second connector is provided between the second group of adjustment components and the fourth group of adjustment components, and the second connector passes through the second group of adjustment components and the fourth group of adjustment components.

[0013] Furthermore, the first set of adjustment components includes a first adjustment member and a second adjustment member, the first adjustment member being disposed at one end of the first lead bracket and the second adjustment member being disposed at the other end of the first lead bracket.

[0014] Furthermore, the second adjusting member is connected to the third set of adjusting components.

[0015] Furthermore, the third set of adjustment components includes a fifth adjustment member and a sixth adjustment member. The fifth adjustment member is disposed at one end of the third lead bracket near the first lead bracket, and the sixth adjustment member is disposed at the other end of the third lead bracket near the first lead bracket.

[0016] Furthermore, the fifth adjusting member is connected to the first adjusting assembly.

[0017] Furthermore, the second set of adjustment components includes a third adjustment member and a fourth adjustment member, with the third adjustment member disposed at one end of the second lead bracket and the fourth adjustment member disposed at the other end of the second lead bracket.

[0018] Furthermore, the fourth adjusting member is connected to the fourth adjusting assembly.

[0019] Furthermore, the fourth adjustment assembly includes a seventh adjustment member and an eighth adjustment member. The seventh adjustment member is disposed at one end of the third lead bracket near the second lead bracket, and the eighth adjustment member is disposed at the other end of the third lead bracket near the second lead bracket.

[0020] Furthermore, the seventh adjusting element is connected to the second set of adjusting components.

[0021] Furthermore, the first set of adjustment components, the second set of adjustment components, and the third set of adjustment components are all double nut structures, and the first connector and the second connector are both bolts.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] This utility model proposes an adjustable structure for a power transformer lead wire bracket. The provided structure offers flexible adjustment and a simple design, enabling precise and efficient adjustment of the lead wire bracket's installation height. It supports single-sided / double-sided / asymmetric adjustment modes to adapt to different dimensional deviation scenarios. The bracket's lifting amount is directly controlled via the adjustment components, achieving millimeter-level accuracy. The use of insulating paperboard is eliminated, saving over 15% in material costs per transformer and reducing commissioning time by over 50%. Attached Figure Description

[0024] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0025] Figure 1 This is an exploded view of an adjustable structure for a power transformer lead support according to this utility model.

[0026] Figure 2 This is a schematic diagram of the adjustment and installation of an adjustment structure for a power transformer lead bracket according to this utility model.

[0027] Wherein, 1 is the first lead bracket, 2 is the second lead bracket, 3 is the third lead bracket, 4 is the first adjusting component, 5 is the second adjusting component, 6 is the third adjusting component, 7 is the fourth adjusting component, 8 is the fifth adjusting component, 9 is the sixth adjusting component, 10 is the seventh adjusting component, and 11 is the eighth adjusting component. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Example 1

[0033] This embodiment provides an adjustment structure for a power transformer lead support, including a first set of adjustment components, a second set of adjustment components, and a third set of adjustment components. The first set of adjustment components is disposed on a first lead support 1, and the second set of adjustment components is disposed on a second lead support 2. The first lead support 1 and the second lead support 2 are disposed on the same side of a third lead support 3. The first lead support 1 is disposed at one end of the third lead support 3 via the first set of adjustment components, and the second lead support 2 is disposed at the other end of the third lead support 3 via the second set of adjustment components. The third set of adjustment components is disposed on the side of the third lead support 3 closest to the first lead support, and the fourth set of adjustment components is disposed on the side of the third lead support 3 closest to the second lead support. The first set of adjustment components and the third set of adjustment components are disposed opposite each other, and the second set of adjustment components and the fourth set of adjustment components are disposed opposite each other. A first connecting member is disposed between the first set of adjustment components and the third set of adjustment components, and the first connecting member passes through the first set of adjustment components and the third set of adjustment components. A second connecting member is disposed between the second set of adjustment components and the fourth set of adjustment components, and the second connecting member passes through the second set of adjustment components and the fourth set of adjustment components.

[0034] The first set of adjustment components includes a first adjustment element 4 and a second adjustment element 5. The first adjustment element 4 is located at one end of the first lead bracket 1, and the second adjustment element 5 is located at the other end of the first lead bracket 1. The second adjustment element 5 is connected to the third set of adjustment components. The third set of adjustment components includes a fifth adjustment element 8 and a sixth adjustment element 9. The fifth adjustment element 8 is located at one end of the third lead bracket 3 near the first lead bracket, and the sixth adjustment element 9 is located at the other end of the third lead bracket 3 near the first lead bracket. The fifth adjustment element 8 is connected to the first adjustment component. The second set of adjustment components includes a third adjustment element 6 and a fourth adjustment element 7. The third adjustment element 6 is located at one end of the second lead bracket 2, and the fourth adjustment element 7 is located at the other end of the second lead bracket 2. The fourth adjustment element 7 is connected to the fourth adjustment component. The fourth adjustment component includes a seventh adjustment element 10 and an eighth adjustment element 11. The seventh adjustment element 10 is located at one end of the third lead bracket 3 near the second lead bracket, and the eighth adjustment element 11 is located at the other end of the third lead bracket 3 near the second lead bracket. The seventh adjustment element 10 is connected to the second set of adjustment components.

[0035] The first, second, and third adjusting components all feature a double-nut structure, while the first and second connecting parts are bolted. The metal nut structure prevents insulation failure caused by cardboard aging, thus improving the transformer's short-circuit withstand capability and operational stability.

[0036] This embodiment provides an adjustable structure for power transformer lead wire supports. During the production and manufacturing process of transformers, thermal expansion and contraction, installation errors, and other factors affect the installation accuracy of lead wire supports, necessitating adjustment of the supports to compensate for installation deviations. Generally, when adjustments are required between lead wire supports, adjusting cardboard must be added or removed at the adjustment point to achieve the required dimensions. This method requires pre-insertion of the adjusting cardboard and adjustment based on the actual product conditions, resulting in a large amount of insulation material and inconvenient adjustment. To improve upon the inconvenience of cardboard adjustment supports, nuts can be added between the lead wire supports. The nuts are adjusted according to the required adjustment dimensions to meet production and installation needs and save raw materials. This embodiment adds nuts between the adjustable lead wire supports of the power transformer, allowing for single-sided adjustment, multi-sided adjustment, and adjustment of lead wire supports at different heights on each side, based on product size errors, to meet production and installation requirements.

[0037] like Figure 1 As shown, each of the first lead bracket 1, the second lead bracket 2, and the third lead bracket 3 has an adjusting component at the upper and lower ends of its mounting hole. All adjusting components use nuts. When the height of the first lead bracket 1, the second lead bracket 2, and the third lead bracket 3 needs to be adjusted, the first adjusting component 4, the second adjusting component 5, the third adjusting component 6, and the fourth adjusting component 7, or the fifth adjusting component 8, the sixth adjusting component 9, the seventh adjusting component 10, and the eighth adjusting component 11, or all of them can be adjusted simultaneously to achieve the required dimensions. The installation diagram is shown below. Figure 2 As shown.

[0038] By adding a nut to each of the lead wire brackets that require height adjustment, single-sided adjustment, double-sided adjustment, and angle adjustment of the lead wire brackets can be achieved. This embodiment has a simple structure and can achieve height adjustment under various dimensional deviations; it also reduces costs by minimizing the use of adjustment cardboard, thereby reducing transformer costs and improving economic efficiency.

[0039] Example 2

[0040] This embodiment provides a method for using a power transformer lead bracket adjustment structure, specifically using a power transformer lead bracket adjustment structure from Embodiment 1:

[0041] Ensure the transformer is in a safe de-energized state. Based on the design drawings or on-site measurements, clarify the adjustment target: determine the specific dimensions by which the first lead bracket 1 and the second lead bracket 2 need to be raised or lowered relative to the third lead bracket 3, including the overall height or local height difference.

[0042] Clean the adjusting components, including all nuts and threaded areas of screws / connectors, to ensure smooth adjustment. Inspect all adjusting components, connectors, and brackets for damage.

[0043] The first set of adjustment components is located at both ends of the first lead bracket 1. It includes a first adjusting member 4 and a second adjusting member 5, both of which are nuts.

[0044] The second set of adjustment components is located at both ends of the second lead bracket 2. It includes a third adjustment component 6 and a fourth adjustment component 7, both of which are nuts.

[0045] The third set of adjustment components is located at both ends of the third lead bracket 3 near the first lead bracket 1. It includes a fifth adjustment component 8 and a sixth adjustment component 9, both of which are nuts. This set is connected to the first set of adjustment components, the first adjustment component 4 and the second adjustment component 5, via a first connector.

[0046] The fourth set of adjustment components: Located at both ends of the third lead bracket 3 near the second lead bracket 2. It includes a seventh adjustment element 10 and an eighth adjustment element 11, both of which are nuts. This set is connected to the second set of adjustment components, the third adjustment element 6, and the fourth adjustment element 7 via a second connector.

[0047] Adjustment is achieved by rotating the adjusting nut 4-11 to a specific position.

[0048] By rotating the nuts in the two paired adjustment components at one end of a bracket, for example, by simultaneously rotating the first adjustment component 4 at the left end of the first lead bracket 1 and the fifth adjustment component 8 at the corresponding left end of the third lead bracket 3, the height of that end can be precisely controlled while keeping the connector taut.

[0049] The adjustment should follow the principle of "pairing at the same end and adjusting synchronously". That is, at the same end of the bracket, such as the left end, the two paired adjustment parts, such as 4 and 8, or 6 and 10, need to be rotated simultaneously, in the same direction and in the same amount. Usually, they are tightened or loosened synchronously to ensure the stability of the connection and the accuracy of the adjustment.

[0050] Adjustment methods can be selected individually or in combination, depending on the needs:

[0051] Method 1: Adjust the overall height of a single bracket, for example, adjust only the first lead bracket 1:

[0052] Step 1: Determine the bracket to be adjusted and its paired adjustment components, for example, adjust the first lead bracket 1.

[0053] Step 2: Simultaneously, in the same direction, and with the same amount, rotate the matching nuts on the left end of the bracket: the first adjusting member 4 is on the first lead bracket 1 and the fifth adjusting member 8 is on the third lead bracket 3.

[0054] Step 3: Simultaneously, in the same direction, and with the same amount, rotate the matching nuts on the right end of the bracket: the second adjusting member 5 on the first lead bracket 1 and the sixth adjusting member 9 on the third lead bracket 3.

[0055] Step 4: Raise the support: Simultaneously tighten the first set of adjusting parts and simultaneously loosen its paired third set of adjusting parts. That is, tighten the nuts on the support and loosen the nuts on the base.

[0056] Step 5: Lower the bracket: Simultaneously loosen the first set of adjusting parts and simultaneously tighten its paired third set of adjusting parts. That is, loosen the nuts on the bracket and tighten the nuts on the base.

[0057] Steps 2 and 3 must be performed in coordination to ensure that the support frame is raised and lowered in parallel. If fine-tuning of the support frame's level is required, adjusting one end higher or lower can be done by different amounts at the corresponding end.

[0058] Method 2: Adjust the overall height of a single bracket, for example, adjust only the second lead bracket 2: The principle is the same as Method 1, but the objects being operated on are the second lead bracket 2 and its corresponding second and fourth sets of adjustment components. The principle of "pairing at the same end and adjusting synchronously" is also followed.

[0059] Method 3: Adjust the overall height of both brackets simultaneously, and simultaneously adjust the first lead bracket 1 and the second lead bracket 2: Follow the steps described in Method 1 and Method 2 respectively, adjusting the first lead bracket 1 and the second lead bracket 2 simultaneously or sequentially. Ensure that the mating nuts of the two brackets move synchronously.

[0060] Method 4: Fine-tune the levelness / parallelism of the support, and make minor adjustments to one end:

[0061] Step 1: Determine the bracket that needs adjustment, such as the first lead bracket 1, and the end that needs adjustment, such as the left end being too low.

[0062] Step 2: For this end only, the left end, follow the steps in Step 2 of Method 1:

[0063] If it is necessary to raise this end: simultaneously tighten the first adjusting component 4 and simultaneously loosen the fifth adjusting component 8.

[0064] If it is necessary to lower this end: simultaneously loosen the first adjusting piece 4 and simultaneously tighten the fifth adjusting piece 8.

[0065] Step 3: Adjusting this end will change the tilt angle of the bracket. After adjustment, check the levelness of the bracket and the gaps between it and related components.

[0066] Method 5: Overall proportional adjustment (adjust all brackets simultaneously and by the same amount): If it is necessary to adjust the first lead bracket 1 and the second lead bracket 2 to the same height relative to the third lead bracket 3.

[0067] Step 1: Adjust the mating nuts at both ends of the first lead bracket 1 synchronously according to the operation of Method 1.

[0068] Step 2: Adjust the mating nuts at both ends of the second lead bracket 2 synchronously according to the operation of Method 2.

[0069] Step 3: Ensure that the lifting and lowering directions and amplitudes of the two sets of adjustment operations are consistent.

[0070] During and after the adjustment process, it is essential to use precise measuring tools, such as calipers, height gauges, and laser rangefinders, to repeatedly measure the actual height of the first lead bracket 1 and the second lead bracket 2 relative to the third lead bracket 3, as well as key components such as lead terminals, grounding bodies, and electrical safety clearances between the box walls, to ensure compliance with design requirements or specifications.

[0071] Optionally, check the levelness of the adjusted bracket.

[0072] Once the target dimensions are reached and confirmed to be correct, use a wrench to securely tighten all adjusting nuts 4-11 to prevent loosening or displacement due to vibration during operation. Ensure that all mating nuts, such as 4 and 8, 6 and 10, are effectively engaged and tensioned after tightening.

[0073] Conduct a thorough inspection to ensure all adjustment components, connectors, and brackets are securely and reliably installed. Confirm that the lead wires are unobstructed, free from twisting, excessive stretching, or interference with brackets or other components. Before restoring power, reconfirm that all safety procedures have been followed.

[0074] The above methods allow for flexible and precise adjustment of the height and level of one or two lead supports relative to the base support, meeting the stringent requirements for space and insulation distance in transformer lead installation.

[0075] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

[0076] The above content provides a further detailed description of this utility model. It should not be considered that the specific embodiments of this utility model are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all of these should be considered to fall within the defined protection scope of this utility model.

Claims

1. An electric power transformer lead support adjusting structure characterized by, It includes a first set of adjustment components, a second set of adjustment components and a third set of adjustment components. The first set of adjustment components is set on the first lead support (1) and the second set of adjustment components is set on the second lead support (2). The first lead bracket (1) and the second lead bracket (2) are disposed on the same side of the third lead bracket (3). The first lead bracket (1) is disposed relative to one end of the third lead bracket (3) by a first set of adjustment components, and the second lead bracket (2) is disposed relative to the other end of the third lead bracket (3) by a second set of adjustment components. The third set of adjustment components is located on the side of the third lead bracket (3) close to the first lead bracket, and the fourth set of adjustment components is located on the side of the third lead bracket (3) close to the second lead bracket. The first group of adjustment components is arranged opposite to the third group of adjustment components, and the second group of adjustment components is arranged opposite to the fourth group of adjustment components; A first connector is provided between the first group of adjustment components and the third group of adjustment components, and the first connector passes through the first group of adjustment components and the third group of adjustment components. A second connector is provided between the second group of adjustment components and the fourth group of adjustment components, and the second connector passes through the second group of adjustment components and the fourth group of adjustment components.

2. The power transformer lead support adjustment structure according to claim 1, characterized in that, The first set of adjustment components includes a first adjustment member (4) and a second adjustment member (5). The first adjustment member (4) is disposed at one end of the first lead support (1), and the second adjustment member (5) is disposed at the other end of the first lead support (1).

3. The power transformer lead support adjustment structure of claim 2, wherein, The second adjusting member (5) is connected to the third adjusting assembly.

4. The power transformer lead support adjustment structure according to claim 1, characterized in that, The third set of adjustment components includes a fifth adjustment member (8) and a sixth adjustment member (9). The fifth adjustment member (8) is disposed at one end of the third lead bracket (3) near the first lead bracket, and the sixth adjustment member (9) is disposed at the other end of the third lead bracket (3) near the first lead bracket.

5. The power transformer lead support adjustment structure of claim 4, wherein, The fifth adjusting member (8) is connected to the first adjusting component.

6. The power transformer lead support adjustment structure of claim 1, wherein, The second set of adjustment components includes a third adjustment member (6) and a fourth adjustment member (7). The third adjustment member (6) is disposed at one end of the second lead bracket (2), and the fourth adjustment member (7) is disposed at the other end of the second lead bracket (2).

7. The power transformer lead support adjustment structure of claim 6, wherein, The fourth adjusting member (7) is connected to the fourth adjusting assembly.

8. The power transformer lead support adjustment structure of claim 1, wherein, The fourth adjustment component includes a seventh adjustment member (10) and an eighth adjustment member (11). The seventh adjustment member (10) is disposed at one end of the third lead bracket (3) near the second lead bracket, and the eighth adjustment member (11) is disposed at the other end of the third lead bracket (3) near the second lead bracket.

9. The adjusting structure for a power transformer lead bracket according to claim 8, characterized in that, The seventh adjusting member (10) is connected to the second set of adjusting components.

10. The power transformer lead support adjustment structure of claim 1, wherein, The first set of adjustment components, the second set of adjustment components, and the third set of adjustment components are all double nut structures, and the first connector and the second connector are both bolts.

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