Clamp structure for assembling transformer

Abstract

The invention relates to a clamp structure based on transformer assembly, and belongs to the technical field of transformer clamps. A clamp base is arranged, a clamping assembly is installed on the clamp base, two supporting parts are connected with the clamp base through a telescopic assembly, a winding is placed between the two supporting parts, and the two supporting parts get close to each other to clamp a transformer; the transformer is in contact with the third fan-shaped rotating part to drive the third fan-shaped rotating part to rotate, and the second fan-shaped rotating part and the first fan-shaped rotating part adjust the angle, so that the third fan-shaped rotating part is attached to the uneven area of the outer surface of the transformer. When the transformer is clamped, the telescopic assembly can extrude a first fan-shaped rotating part, a second fan-shaped rotating part and a third fan-shaped rotating part, so that the three fan-shaped rotating parts move, and finally, the third fan-shaped rotating part is attached and pressed to the uneven area of the outer surface of the transformer, so that the problems that when the surface of the transformer is uneven, the mechanical strength of the clamping part is reduced, and the clamping effect is poor are solved. And the clamping piece is loosened.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer clamps, and in particular relates to a clamp structure for transformer assembly. Background Art

[0002] Transformers usually need to use a structure called a clamp to fix and clamp the winding to ensure that the winding will not shift due to the action of electromagnetic force during operation. The most common transformer clamp structure is the pressure plate clamp. The pressure plate clamp generally clamps the winding through two or more pressure plates. During the specific operation, the winding is first placed between the pressure plates, and then the pressure plate is connected to the box body with bolts. When the bolts are tightened, the force generated will press the pressure plate tightly against the winding, thereby fixing the winding.

[0003] However, the current transformer clamp structure has some problems when in use: since transformers are mostly placed outdoors, the outdoor environment is changeable when used outdoors, and natural conditions such as rain, sunlight, wind and sand will have physical and chemical effects on the surface of the transformer. For example, ultraviolet radiation may cause aging of the material on the surface of the transformer, and rain and humidity may cause rust. These factors may cause the transformer surface to form an uneven plane, and the uneven transformer surface will lead to uneven distribution of clamping force, which will reduce the mechanical strength of the clamping part, and the transformer will inevitably produce a certain degree of vibration during operation. At this time, when the mechanical strength of the clamping part is reduced, this vibration will be amplified, thereby affecting the stability of the clamp structure and causing the clamp to loosen. In this regard, a clamp structure based on transformer assembly is proposed. Summary of the invention

[0004] In order to solve the above-mentioned problems existing in the prior art, the present invention provides a clamp structure for transformer assembly, which solves the problem in the prior art that when the surface of the transformer is uneven due to the outdoor environment, the mechanical strength of the clamping part will be reduced, and the vibration of the transformer will be amplified, causing the clamp to loosen.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A clamp structure for transformer assembly includes a clamp base and a clamping assembly arranged on the clamp base, wherein the clamping assembly is used to clamp a transformer with an uneven outer surface; the clamping assembly includes two supporting parts, fan-shaped guide parts movably arranged on the supporting parts, first fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the fan-shaped guide parts, second fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the first fan-shaped rotating parts, and third fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the second fan-shaped rotating parts, the two supporting parts are connected to the clamp base by a telescopic assembly, the telescopic assembly drives the two supporting parts to approach each other, the transformer drives the third fan-shaped rotating part to rotate by contacting the third fan-shaped rotating part, and the second fan-shaped rotating part and the first fan-shaped rotating part adjust their angles, so that the third fan-shaped rotating part fits the uneven area on the outer surface of the transformer.

[0006] As a further solution of the present invention, the telescopic assembly includes a telescopic rod and a spring sleeved on the telescopic rod, and two ends of the telescopic rod are respectively connected to the clamp base and the support part.

[0007] As a further solution of the present invention, a first arcuate groove is provided on the side of the fan-shaped guide portion close to the arcuate edge, a first protrusion is provided on the support portion, the first protrusion slidably cooperates with the first arcuate groove, a second arcuate groove is provided on the side of the first fan-shaped rotating portion close to the arcuate edge, a second protrusion is provided on the side of the fan-shaped guide portion away from the arcuate edge, the second protrusion slidably cooperates with the second arcuate groove, a third arcuate groove is provided on the side of the second fan-shaped rotating portion close to the arcuate edge, a third protrusion is provided on the side of the first fan-shaped rotating portion away from the arcuate edge, the third protrusion slidably cooperates with the third arcuate groove, a fourth arcuate groove is provided on the side of the third fan-shaped rotating portion close to the arcuate edge, a fourth protrusion is provided on the side of the second fan-shaped rotating portion away from the arcuate edge, and the fourth protrusion slidably cooperates with the fourth arcuate groove.

[0008] As a further solution of the present invention, the radii of the fan-shaped guide portion, the first fan-shaped rotating portion, the second fan-shaped rotating portion and the third fan-shaped rotating portion are successively reduced by half, and their numbers are successively increased by two times.

[0009] As a further solution of the present invention, the fan-shaped guide part, the first fan-shaped rotating part and the second fan-shaped rotating part are all fan-shaped blocks with similar shapes, and the edges where the radius of the fan-shaped blocks are located are all concave, and the arc edges of the fan-shaped blocks and the edges where the radius are located form a smooth arc.

[0010] As a further solution of the present invention, a side of the third sector-shaped rotating portion away from the arc-shaped edge is a stepped structure, and the stepped structure is in contact with the outer surface of the transformer.

[0011] As a further solution of the present invention, a thermal barrier coating for preventing thermal expansion is provided on the stepped structure of the third sector-shaped rotating portion.

[0012] As a further solution of the present invention, the telescopic rod is connected to the support part via a limit block, an elastic card block is provided below the limit block, and a plurality of card slots are provided on the clamp base below the elastic card block, and the elastic card block engages with any card slot.

[0013] As a further solution of the present invention, one side of the elastic block is vertically arranged with the telescopic rod, the other side of the elastic block is a first arc structure, the slot matches the block, and the top of the slot is a second arc structure.

[0014] The beneficial effects of the present invention are: A clamp base is provided, a clamping assembly is installed on the clamp base, and two support parts are connected to the clamp base through a telescopic assembly. When the clamp structure is used, the winding is first placed between the two support parts, and the two support parts are close to each other to clamp the transformer. The transformer drives the third fan-shaped rotating part to rotate by contacting with the third fan-shaped rotating part, and the second fan-shaped rotating part and the first fan-shaped rotating part adjust the angle, so that the third fan-shaped rotating part fits with the uneven area of ​​the outer surface of the transformer. When the surface of the transformer is uneven, the telescopic assembly will squeeze the first fan-shaped rotating part, the second fan-shaped rotating part and the third fan-shaped rotating part, so that the three fan-shaped rotating parts move, and finally the third fan-shaped rotating part fits and presses with the uneven area of ​​the outer surface of the transformer. The third fan-shaped rotating parts on both sides of the transformer can continuously press the transformer winding, thereby solving the problem in the prior art that when the surface of the transformer is uneven due to the outdoor environment, the mechanical strength of the clamping part is reduced, the vibration of the transformer is amplified, and the clamp becomes loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial structure of the clamping assembly of the present invention; Figure 3 It is a schematic diagram of installing the elastic card block of the present invention.

[0017] Description of main component symbols: In the figure: 1. clamp base; 11. slot; 2. clamping assembly; 21. support portion; 22. fan-shaped guide portion; 23. first fan-shaped rotating portion; 24. second fan-shaped rotating portion; 25. third fan-shaped rotating portion; 3. telescopic assembly; 31. spring; 32. telescopic rod; 4. limit block; 5. elastic block. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1 - Figure 3 The present embodiment provides a clamp structure for transformer assembly, including a clamp base 1 and a clamp assembly 2 arranged on the clamp base 1, wherein the clamp base 1 is used to support the entire transformer and the clamp assembly 2, and the clamp assembly 2 is used to clamp the transformer with an uneven outer surface; the clamp assembly 2 includes two supporting parts 21, fan-shaped guide parts 22 respectively movably arranged on the supporting parts 21, first fan-shaped rotating parts 23 respectively movably arranged on two fan-shaped symmetrical areas of the fan-shaped guide parts 22, second fan-shaped rotating parts 24 respectively movably arranged on two fan-shaped symmetrical areas of the first fan-shaped rotating parts 23, and second fan-shaped rotating parts 25 respectively movably arranged on two fan-shaped symmetrical areas of the first fan-shaped rotating parts 26. The third fan-shaped rotating part 25 is arranged on the two fan-shaped symmetrical areas of the second fan-shaped rotating part 24, and the two supporting parts 21 are connected to the clamp base 1 through the telescopic component 3. The telescopic component 3 drives the two supporting parts 21 to approach each other. When the clamp structure is used, the winding is first placed between the two supporting parts 21, and the two supporting parts 21 are approached to each other to clamp the transformer. The radii of the fan-shaped guide part 22, the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25 are reduced by half in turn, and the number is doubled in turn. Here, the fan-shaped guide part 22 on a supporting part 21 of the clamping component 2 is taken as an example. Figure 1 As shown, the number of the fan-shaped guide part 22 is one, the number of the first fan-shaped rotating part 23 is two, the number of the second fan-shaped rotating part 24 is four, and the number of the third fan-shaped rotating part 25 is eight. Considering the stability and the contact area between the third fan-shaped rotating part 25 and the transformer, after the number of the third fan-shaped rotating part 25 is eight, it is no longer necessary to continue to set the fan-shaped rotating part. The transformer drives the third fan-shaped rotating part 25 to rotate by contacting the third fan-shaped rotating part 25, and the second fan-shaped rotating part 24 and the first fan-shaped rotating part 23 adjust the angle, so that the third fan The third fan-shaped rotating part 25 fits with the uneven area of ​​the outer surface of the transformer. Since the third fan-shaped rotating part 25 rotates, the second fan-shaped rotating part 24 and the first fan-shaped rotating part 23 can all rotate. When the surface of the transformer is uneven, the telescopic component 3 will squeeze the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25, so that the three fan-shaped rotating parts move, and finally the third fan-shaped rotating part 25 fits and presses with the uneven area of ​​the outer surface of the transformer. The third fan-shaped rotating parts 25 on both sides of the transformer can continuously press the transformer winding.

[0020] At present, the common transformer clamp structure is a pressure plate type clamp. The pressure plate type clamp generally clamps the winding by two or more pressure plates. During the specific operation, the winding is first placed between the pressure plates, and then the pressure plates are connected to the box body by bolts. When the bolts are tightened, the force generated will press the pressure plates tightly against the winding, thereby fixing the winding. However, the current transformer clamp structure has some problems when used. When used outdoors, the outdoor environment is changeable, and natural conditions such as rain, sunshine, wind and sand will have physical and chemical effects on the surface of the transformer. These factors may cause the transformer surface to form an uneven plane, and the uneven transformer surface will cause uneven distribution of clamping force, which will reduce the mechanical strength of the clamping part, and the transformer will inevitably produce a certain degree of vibration during operation. At this time, when the mechanical strength of the clamping part is reduced, this vibration will be amplified, thereby affecting the stability of the clamp structure and causing the clamp to loosen.

[0021] In order to solve the above problems, in this embodiment, a clamp base 1 is provided, a clamping assembly 2 is installed on the clamp base 1, and two support parts 21 are connected to the clamp base 1 through a telescopic assembly 3. When the clamp structure is used, the winding is first placed between the two support parts 21, and the two support parts 21 are close to each other to clamp the transformer. The transformer drives the third fan-shaped rotating part 25 to rotate by contacting with the third fan-shaped rotating part 25, and the second fan-shaped rotating part 24 and the first fan-shaped rotating part 23 adjust the angle, so that the third fan-shaped rotating part 25 is aligned with the uneven area of ​​the outer surface of the transformer. Fitting. When the surface of the transformer is uneven, the telescopic component 3 will squeeze the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25, so that the three fan-shaped rotating parts move, and finally the third fan-shaped rotating part 25 is fit and pressed against the uneven area on the outer surface of the transformer. The third fan-shaped rotating part 25 on both sides of the transformer can continuously press the transformer winding, thereby solving the problem in the prior art that when the surface of the transformer is uneven due to the outdoor environment, the mechanical strength of the clamping part will be reduced, the vibration of the transformer will be amplified, and the clamp will become loose.

[0022] One thing that needs to be explained is that, since the corrosion of the transformer is slow outdoors, the staff may not be able to discover it in time, and cannot adjust the clamping assembly 2 in time so that the third fan-shaped rotating part 25 fits tightly with the uneven area on the outer surface of the transformer. In order to solve this problem, in one embodiment, the telescopic assembly 3 includes a telescopic rod 32 and a spring 31 sleeved on the telescopic rod 32, and the two ends of the telescopic rod 32 are respectively connected to the clamp base 1 and the support part 21. The spring 31 and the telescopic rod 32 cooperate with each other to have two functions. First, it ensures that as long as the transformer is slightly corroded and uneven, the clamping assembly 2 can be adjusted immediately. In addition, the spring 31 drives the support parts 21 to approach each other, so that the third fan-shaped rotating parts 25 on both sides of the transformer can continuously press the transformer windings. Secondly, when the transformer is running, vibration is inevitable. This spring 31 can also provide a certain buffer space for the clamping component 2 to avoid excessive stress on the clamping part due to vibration. In addition, when the transformer is clamped, the two support parts 21 are moved outward at the same time, and the spring 31 is compressed. When the transformer is just clamped, the reaction force of the spring 31 causes the two support parts 21 to press the transformer, and the spring 31 is still in a compressed state.

[0023] In addition, when the outer surface of the transformer is corroded, the outer surface of the transformer becomes uneven. The telescopic component 3 will squeeze the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25, so that the three fan-shaped rotating parts move, and finally the third fan-shaped rotating part 25 is pressed against the uneven area of ​​the outer surface of the transformer. However, in this process, the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25 may have excessive friction when rotating, resulting in jamming, and the third fan-shaped rotating part cannot be rotated. The part 25 is pressed tightly against the uneven area of ​​the outer surface of the transformer. In order to avoid this problem, in one embodiment, a first arcuate groove is provided on the side of the fan-shaped guide part 22 close to the arcuate edge, a first protrusion is provided on the support part 21, and the first protrusion slides with the first arcuate groove, a second arcuate groove is provided on the side of the first fan-shaped rotating part 23 close to the arcuate edge, a second protrusion is provided on the side of the fan-shaped guide part 22 away from the arcuate edge, and the second protrusion slides with the second arcuate groove, and a second fan-shaped rotating part 24 is provided on the side close to the arcuate edge. A third arc-shaped slide groove is provided, a third protrusion is provided on the side of the first sector-shaped rotating part 23 away from the arc-shaped edge, and the third protrusion is slidably matched with the third arc-shaped slide groove, a fourth arc-shaped slide groove is provided on the side of the third sector-shaped rotating part 25 close to the arc-shaped edge, and a fourth protrusion is provided on the side of the second sector-shaped rotating part 24 away from the arc-shaped edge, and the fourth protrusion is slidably matched with the fourth arc-shaped slide groove. The first protrusion, the second protrusion, the third protrusion and the fourth protrusion are all arc-shaped, and are connected to the first arc-shaped slide groove, the second arc-shaped slide groove, the third arc-shaped slide groove and the fourth arc-shaped slide groove. The connection through the rotating shaft ensures that the fan-shaped guide part 22, the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25 are a whole, and only the fan-shaped guide part 22, the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25 can rotate relative to each other, and the arc-shaped design of the protrusion and the slide groove can reduce the friction during the mechanical rotation process, thereby avoiding the problem of excessive friction and jamming of the first fan-shaped rotating part 23, the second fan-shaped rotating part 24 and the third fan-shaped rotating part 25 during rotation.

[0024] Furthermore, in order to make the fan-shaped guide portion 22, the first fan-shaped rotating portion 23, the second fan-shaped rotating portion 24 and the third fan-shaped rotating portion 25 move with less resistance and more flexibility, that is, if the transformer is slightly uneven, the fan-shaped guide portion 22, the first fan-shaped rotating portion 23, the second fan-shaped rotating portion 24 and the third fan-shaped rotating portion 25 can cooperate and automatically adjust. In this regard, in one embodiment, the fan-shaped guide portion 22, the first fan-shaped rotating portion 23 and the second fan-shaped rotating portion 24 are all fan-shaped blocks with similar shapes, such as Figure 2As shown, the fan-shaped guide portion 22, the first fan-shaped rotating portion 23 and the second fan-shaped rotating portion 24 are fan-shaped blocks of different sizes and similar shapes, and the edges where the radius of the fan-shaped blocks are located are all concave, and the arcuate edges of the fan-shaped blocks and the edges where the radius are located form a smooth arc. Thus, the fan-shaped blocks of different sizes and similar shapes are combined together to form a clamping assembly 2 that can ensure that if the transformer is slightly uneven, the fan-shaped guide portion 22, the first fan-shaped rotating portion 23, the second fan-shaped rotating portion 24 and the third fan-shaped rotating portion 25 can cooperate and automatically adjust.

[0025] In actual use, the vibration of the transformer can easily cause the third sector-shaped rotating part 25 to slide with the transformer. In order to avoid this problem, in one embodiment, the side of the third sector-shaped rotating part 25 away from the arc-shaped edge is a stepped structure, and the stepped structure fits the outer surface of the transformer. A thermal barrier coating that prevents thermal expansion is provided on the stepped structure of the third sector-shaped rotating part 25. In addition, since the transformer generates heat during operation, continuous heat generation will also cause thermal expansion of the stepped structure of the third sector-shaped rotating part 25. This thermal expansion will cause the third sector-shaped rotating part 25 to press the transformer more. Although the presence of the spring 31 can slow down this effect at this time, in order to further slow down the existence of this thermal expansion, a thermal barrier coating that prevents thermal expansion is provided on the stepped structure of the third sector-shaped rotating part 25. In addition, the use of a stepped structure to fit the outer surface of the transformer has three advantages. First, it can provide better support and fixation, increase the stability of the overall structure, and reduce damage caused by factors such as vibration; second, the stepped structure can increase the contact area with the outer surface of the transformer, thereby improving the heat dissipation efficiency; third, the stepped structure can better adapt to the shape of the outer surface of the transformer, making the entire heat dissipation system more compact, and the stepped structure here is angular, not a smooth arc structure, which can prevent the transformer from sliding when it vibrates.

[0026] It is worth noting that, under the action of the spring 31 and the telescopic rod 32 of the telescopic assembly 3, not only can the spring 31 automatically drive the support parts 21 to approach each other under its action force as long as the transformer is slightly corroded or uneven, so that the third fan-shaped rotating parts 25 on both sides of the transformer can continuously compress the transformer winding, but also the spring 31 can slow down thermal expansion and vibration. However, since the spring 31 can move in both directions, the clamping may be unstable and slightly shaken when vibrating. In order to solve this problem, in one embodiment, the telescopic rod 32 is connected to the support part 21 through a limit block 4, and an elastic card block 5 is arranged below the limit block 4. A plurality of card grooves 11 are arranged on the clamp base 1 below the elastic card block 5. The elastic card block 5 is engaged with any card groove 11. One side of the elastic card block 5 is vertically arranged with the telescopic rod 32, and the other side of the elastic card block 5 is a first arc structure. The card groove 11 matches the card block, and the top of the card groove 11 is a second arc structure. Figure 3 As shown, the left part of the elastic block 5 is arranged perpendicular to the telescopic rod 32, the right part of the elastic block 5 is a first arc structure, and the structure of the slot top of the slot 11 close to the first arc structure of the elastic block 5 is a second arc structure. Such a design can ensure that after the spring 31 and the telescopic rod 32 press the transformer, when the transformer is loose, the spring 31 can automatically drive the support part 21 to approach each other under its action force, so that the third fan-shaped rotating parts 25 on both sides of the transformer can continue to press the transformer winding, and after pressing, when the transformer vibrates, the left part of the elastic block 5 is against the left part of the slot 11, so that the spring 31 and the telescopic rod 32 will not have a tendency to move to the left, thereby avoiding the situation that the clamping is unstable and there is a slight shaking during vibration.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A clamp structure for transformer assembly, characterized in that: It includes a clamp base and a clamping assembly arranged on the clamp base, wherein the clamping assembly is used to clamp a transformer with an uneven outer surface; the clamping assembly includes two supporting parts, fan-shaped guide parts movably arranged on the supporting parts, first fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the fan-shaped guide parts, second fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the first fan-shaped rotating parts, and third fan-shaped rotating parts movably arranged on two fan-shaped symmetrical areas of the second fan-shaped rotating parts, the two supporting parts are connected to the clamp base through a telescopic assembly, the telescopic assembly drives the two supporting parts to approach each other, the transformer drives the third fan-shaped rotating part to rotate by contacting with the third fan-shaped rotating part, and the second fan-shaped rotating part and the first fan-shaped rotating part adjust the angles, so that the third fan-shaped rotating part fits with the uneven area on the outer surface of the transformer.

2. A transformer assembly clamp structure according to claim 1, characterized in that: The telescopic assembly comprises a telescopic rod and a spring sleeved on the telescopic rod, and two ends of the telescopic rod are respectively connected to the clamp base and the support part.

3. The clamp structure for transformer assembly according to claim 1, characterized in that: The fan-shaped guide portion is provided with a first arcuate groove on a side close to the arcuate edge, the support portion is provided with a first protrusion, the first protrusion slidably cooperates with the first arcuate groove, the first fan-shaped rotating portion is provided with a second arcuate groove on a side close to the arcuate edge, the fan-shaped guide portion is provided with a second protrusion on a side away from the arcuate edge, the second protrusion slidably cooperates with the second arcuate groove, the second fan-shaped rotating portion is provided with a third arcuate groove on a side close to the arcuate edge, the first fan-shaped rotating portion is provided with a third protrusion on a side away from the arcuate edge, the third protrusion slidably cooperates with the third arcuate groove, the third fan-shaped rotating portion is provided with a fourth arcuate groove on a side close to the arcuate edge, and the second fan-shaped rotating portion is provided with a fourth protrusion on a side away from the arcuate edge, and the fourth protrusion slidably cooperates with the fourth arcuate groove.

4. The clamp structure for transformer assembly according to claim 3 is characterized in that: The radii of the fan-shaped guide portion, the first fan-shaped rotating portion, the second fan-shaped rotating portion and the third fan-shaped rotating portion are successively reduced by half, and the number thereof is successively increased by two times.

5. The clamp structure for transformer assembly according to claim 1, characterized in that: The fan-shaped guide part, the first fan-shaped rotating part and the second fan-shaped rotating part are all fan-shaped blocks with similar shapes, and the edges where the radius of the fan-shaped blocks are located are all concave, and the arc edge of the fan-shaped block and the edge where the radius is located form a smooth arc.

6. The clamp structure for transformer assembly according to claim 1, characterized in that: The side of the third sector-shaped rotating portion away from the arc-shaped edge is a stepped structure, and the stepped structure is in contact with the outer surface of the transformer.

7. The clamp structure for transformer assembly according to claim 6, characterized in that: A thermal barrier coating to prevent thermal expansion is provided on the stepped structure of the third sector-shaped rotating part.

8. The clamp structure for transformer assembly according to claim 2, characterized in that: The telescopic rod is connected to the supporting part via a limit block, an elastic clamping block is arranged below the limit block, a plurality of clamping slots are arranged on the clamping member base below the elastic clamping block, and the elastic clamping block is engaged with any of the clamping slots.

9. The clamp structure for transformer assembly according to claim 8, characterized in that: One side of the elastic block is vertically arranged with the telescopic rod, the other side of the elastic block is a first arc-shaped structure, the slot matches the block, and the slot tops of the slots are both second arc-shaped structures.

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