Transformer body positioning structure and transformer

Abstract

The invention provides a transformer body positioning structure and a transformer, the transformer body positioning structure comprises an upper positioning assembly and a lower positioning assembly, the upper positioning assembly comprises a positioning insertion plate with an inclined part and a support plate with a groove, and the positioning insertion plate is inserted into the groove; due to the existence of the inclined part, the transformer body is close to the center of the oil tank in the descending process; the lower positioning assembly is provided with a main spring, an auxiliary spring, a damping pad, a positioning nail and a positioning ring, the top of the positioning ring is conical so that the transformer body can be further corrected in the descending process, the main spring, the auxiliary spring and the damping pad have the damping effect and can protect the transformer body, and the top of the positioning nail is conical; the positioning ring is provided with a conical groove matched with the positioning nail, and when the transformer body is installed, the positioning ring presses the positioning nail downwards under the action of gravity, and the positioning nail is connected with an installation hole in the transformer body in a pressing mode. And through the arrangement of the upper positioning assembly and the lower positioning assembly, the descending efficiency of the transformer body is high, the accuracy is high, the damping effect is achieved, and the transformer body can be better protected.

Description

Technical Field

[0001] The present application relates to the field of transformers, and in particular to a transformer body positioning structure and a transformer. Background Art

[0002] Transformer is the main distribution equipment of the power system. Oil-immersed transformer is installed in an oil tank filled with oil. When installing the transformer, the positioning of the transformer body is very important. If the transformer body is not positioned well, the transformer body may be displaced during transportation and handling, and collide with the oil tank, causing damage to the transformer or the oil tank, and causing the transformer to fail.

[0003] Although the existing transformer body positioning structure has a guiding function, when the transformer body is placed in the oil tank, workers are required to observe through the gap between the oil tank cover and the oil tank body to ensure that the transformer body will not tilt and hit the oil tank during the lowering process of the transformer or the guiding function completes the guidance of the lowering of the transformer body. Since the height of the oil tank exceeds 1 meter, workers may not be able to observe the lower positioning structure well. Therefore, it takes a long time and is not efficient to adjust the position of the transformer body manually during the descent process, and danger may occur during manual intervention. Vibration may also occur during long-distance transportation or bumpy roads, and the transformer body cannot be well protected. In order to achieve an interference fit between the positioning ring and the bottom foot hole of the existing positioning structure, when inserted into the bottom foot hole of the transformer body, assembly is inconvenient and takes a long time to complete. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a transformer body positioning structure and a transformer.

[0005] In a first aspect, an embodiment of the present application provides a transformer body positioning structure, including:

[0006] An upper positioning assembly is arranged on the upper part of the oil tank where the transformer body is placed, and includes a support plate and a positioning insertion plate. The support plate is arranged on two adjacent side surfaces of the oil tank near one end of the upper opening of the oil tank. The support plate is arranged on the angle formed by two adjacent side surfaces of the oil tank. A groove is provided on the support plate. The positioning insertion plate is arranged on the oil tank cover. The positioning insertion plate includes a connecting portion arranged at the upper end and an inclined portion arranged at the lower end. The connecting portion is arranged in a shape adapted to the groove. There is a gap between the connecting portion and the groove. The cross-sectional size of the inclined portion gradually increases from the lowermost end toward the connecting portion to form a slope.

[0007] The lower positioning assembly is arranged at the lower part of the oil tank and is adapted to the bottom foot of the device body. The bottom foot is provided with a bottom foot hole. The lower positioning assembly comprises a bottom plate, a positioning pin, an intermediate plate, a top plate, a shock-absorbing pad, a positioning ring, a secondary spring and a main spring. The bottom plate is fixed to the bottom of the oil tank, the positioning pin is arranged on the bottom plate, the positioning pin passes through the intermediate plate, the top plate and the shock-absorbing pad, a main spring is sleeved on the positioning pin, one end of the main spring is connected to the bottom plate, and the other end is connected to the top plate, a secondary spring is arranged between the intermediate plate and the top plate, a shock-absorbing pad is arranged on the top plate, and the shock-absorbing pad is arranged below the bottom foot. A positioning ring is sleeved on the top of the positioning pin, the top of the positioning pin is arranged in a cone shape, a conical groove adapted to the top of the positioning pin is opened inside the positioning ring, the top of the positioning ring is conical, and the positioning pin and the positioning ring pass through the bottom foot hole.

[0008] In some embodiments, there are four support plates, which are respectively installed on four corners formed by two adjacent side surfaces of the oil tank.

[0009] In some embodiments, the groove opened on the support plate is a rectangular groove, the connecting portion is configured to be a rectangle matching the rectangular groove, and the inclined portion includes four inclined surfaces, which extend from the lower end of the inclined portion to the connecting portion respectively.

[0010] In some embodiments, the gap between the rectangular groove and the connecting portion in the length direction and the width direction is 5 mm.

[0011] In some embodiments, the support plate is 60-80 mm away from the top of the mounting side surface.

[0012] In some embodiments, the lower positioning components are disposed at both ends of the base foot.

[0013] In some embodiments, the lower positioning assembly also includes a middle column and a bolt. A first center hole is opened on the bottom plate, and the positioning pin is installed in the first center hole. A middle column is sleeved on the outside of the main spring. One end of the middle column is fixed on the bottom plate, and the other end of the middle column is fixed on the middle plate. A second center hole and a first connecting hole are opened on the middle plate, and the second center hole is for the positioning pin and the main spring to pass through. A third center hole and a second connecting hole are opened on the top plate, and the positioning pin passes through the third center hole. One end of the bolt is arranged in the second connecting hole and the other end passes through the first connecting hole. A secondary spring is sleeved on the bolt.

[0014] In some embodiments, there are four first connection holes on the middle plate, each of the first connection holes is penetrated by a bolt, and each bolt is sleeved with a secondary spring.

[0015] In some embodiments, the lower positioning assembly also includes a nut and a washer, the nut cooperates with the portion of the bolt extending out of the lower end surface of the middle plate to fix the bolt between the top plate and the middle plate, and a washer is arranged between the nut and the lower end surface of the middle plate.

[0016] On the other hand, an embodiment of the present application provides a transformer, which includes the above-mentioned transformer body positioning structure.

[0017] The beneficial effects that can be achieved by the present application are as follows: by providing an upper positioning assembly including a support plate and a positioning insert plate, a groove for inserting the positioning insert plate is provided on the support plate, and the positioning insert plate has a connecting portion at an upper end and an inclined portion at a lower end, and the cross-sectional size of the inclined portion gradually increases from the lowest end toward the connecting portion, so that when the transformer body descends inside the oil tank, under the action of the inclined portion and gravity, the position of the transformer body will continuously shift, approaching the center position of the oil tank, and when the body descends to near the bottom of the oil tank, the positioning ring of the lower positioning assembly begins to enter the bottom foot hole of the body, and the top of the positioning ring is conical, so that the body is further corrected to ensure the correctness of the installation of the body, so that the entire descending process is fast, efficient, and highly accurate, and there is no need for excessive human intervention in the descending position of the body.

[0018] The auxiliary springs arranged between the middle plate and the top plate, the main springs and the shock-absorbing pads arranged between the bottom plate and the top plate have a shock-absorbing effect and can protect the transformer body. At the same time, the main springs and multiple auxiliary springs are arranged so that the shock can be well absorbed even when a spring fails. A shock-absorbing pad is also arranged between the top plate and the bottom foot to prevent collision between the bottom foot and the top plate.

[0019] By setting a positioning pin, a positioning ring is sleeved on the top of the positioning pin, the top of the positioning pin is set to be cone-shaped, and a conical groove matched with the top of the positioning pin is opened inside the positioning ring, so that after the device body is lowered until the positioning ring enters the base hole, the positioning ring descends along the top of the positioning pin under the action of the gravity of the device body, and the cone on the top of the positioning pin opens the conical groove of the positioning ring, so that the outer diameter of the positioning ring gradually expands and becomes larger, and is clamped with the base hole.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A front view showing the device of the present application installed in the oil tank is shown;

[0023] Figure 2 A side view showing the body of the present application installed in the oil tank;

[0024] Figure 3 A top view of the device of the present application installed in the oil tank is shown;

[0025] Figure 4 The structure diagram of the upper positioning assembly of the present application is shown;

[0026] Figure 5 The support plate structure diagram of the present application is shown;

[0027] Figure 6 The structural diagram of the positioning insert plate of the present application is shown;

[0028] Figure 7 The structure diagram of the lower positioning assembly of the present application is shown;

[0029] Figure 8 The structure diagram of the lower positioning assembly of the present application is shown;

[0030] Fig. 9 The structure diagram of the lower positioning assembly of the present application is shown. DETAILED DESCRIPTION

[0031] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0032] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0033] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0034] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0035] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0036] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0037] The terms used herein are only used to describe various examples and are not used to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprising" and "having" list the existence of the stated features, quantities, operations, components, elements and / or their combinations, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0038] In an oil-immersed transformer, the transformer body needs to be installed in an oil tank. In order to ensure the installation positioning of the transformer body in the oil tank, a special positioning structure is designed. The transformer body is hoisted into the oil tank by a hook. In the process of the transformer body entering the oil tank and being lowered to connect with the positioning structure, manual intervention and adjustment of the body position are required.

[0039] Although the existing transformer body positioning structure has a guiding function, when the transformer body is placed in the oil tank, workers are required to observe through the gap between the oil tank cover and the oil tank body to ensure that the transformer body does not tilt and hit the oil tank during the lowering process of the transformer or the guiding function completes the guidance of the lowering of the transformer body; vibration will also occur during long-distance transportation or bumpy roads, and the transformer body cannot be well protected.

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] like Figure 1-Figure 3 As shown, the oil-immersed transformer is installed in an oil tank 100 filled with oil. The oil tank 100 has a bottom 101. The four sides of the bottom 101 are respectively connected to a first side 102, a second side 103, a third side 104, and a fourth side 105. The first side 102, the second side 103, the third side 104, and the fourth side 105 are adjacent to each other and sealed to form a rectangular accommodating cavity for accommodating oil and the transformer body. An oil tank cover 106 is arranged on the top of the accommodating cavity.

[0043] The transformer body is mounted on the body fixing mechanism, and the body fixing mechanism is fixed to the oil tank cover 106 through a connecting structure. A hanging plate is provided on the oil tank cover 106, and the oil tank cover 106 is lifted by hooking the hanging plate with a crane hook, thereby lifting the entire transformer body. Then, the transformer body can be lifted into the oil tank 100 by the crane hook for positioning and installation, which is convenient for subsequent transportation and use.

[0044] An upper positioning assembly is disposed on the upper portion of the oil tank 100 , and the upper positioning assembly includes a support plate 20 and a positioning insert plate 30 .

[0045] A support plate 20 is provided at the corner where the first side 102 and the second side 103 of the oil tank 100 are connected, a support plate 20 is provided at the corner where the second side 103 and the third side 104 are connected, a support plate 20 is provided at the corner where the third side 104 and the fourth side 105 are connected, and a support plate 20 is provided at the corner where the fourth side 105 and the first side 102 are connected. The support plate 20 is provided at one end of each side close to the top of the accommodating cavity, and the distance between the support plate 20 and the top of each side is 60-80 mm. A rectangular groove 21 is opened on the support plate 20.

[0046] A positioning insert plate 30 is welded on one side of the fuel tank cover 106 facing the fuel tank 100 receiving cavity. Figure 4-Figure 6 As shown, the positioning insertion plate 30 has a connection portion 31 at the upper end and an inclined portion 32 at the lower end. The connection portion 31 is a rectangle that matches the rectangular groove 21. There is a gap between the long side and the wide side of the connection portion 31 and the long side and the wide side of the rectangular groove 21. The size of the gap is 5mm or other spacing that can meet the lowering requirements. During the lowering process of the transformer body, in order to prevent the transformer body from colliding and positioning with the oil tank, the lowering position will be adjusted through manual observation. When the oil tank cover 106 is about to cover the top of the accommodating cavity, it becomes difficult to manually observe the movement of the transformer body in the oil tank. The worker needs to put his head into the gap between the oil tank cover 106 and the side of the oil tank for observation. As the transformer body further descends, the gap between the oil tank cover 106 and the side of the oil tank is not enough to accommodate the worker, and when the gap is too small, it may be dangerous for the worker to put his head under the oil tank cover 106 for observation.

[0047] In the present application, the distance between the support plate 20 and the top of each side surface is 70-100mm. When the positioning insert plate 30 is not lowered to insert the support plate 20, the distance between the oil tank cover 106 and each side surface can meet manual observation. When the oil tank cover 106 is lowered to the inclined portion 32 of the positioning insert plate 30 and inserted into the rectangular groove 21, the transformer body is guided by the upper positioning assembly composed of the support plate 20 and the positioning insert plate 30 when it descends in the oil tank 100. As the transformer body continues to move downward, the connecting portion 31 is inserted into the rectangular groove 21. During the descent of the transformer body, under the action of the inclined portion 32 and the rectangular groove 21 and the gravity of the transformer body itself, the position of the transformer body will continue to approach the center of the oil tank. When the transformer body descends, the position deviation is only caused by the gap between the rectangular groove 21 and the connecting portion 31.

[0048] In some embodiments, the rectangular groove 21 may also be in other shapes, such as square or circular. The positioning insert plate 30 is in a matching shape.

[0049] A lower positioning assembly is also provided at the bottom of the oil tank, and the lower positioning assembly includes a bottom plate 40, a middle plate 50, a top plate 60, a center column 70, a positioning pin 80, a positioning ring 81, a shock-absorbing pad 90, a main spring 91, a secondary spring 92, bolts 53, nuts 54, and washers 55.

[0050] like Figure 7-Figure 9As shown, the bottom plate 40 is welded to the bottom 101 of the oil tank, the bottom plate 40 is provided with a first center hole 41, the positioning pin 80 is arranged in the first center hole 41, and the positioning pin 80 is provided with a main spring 91, one end of the main spring 91 is connected to the bottom plate 40, and the other end is connected to the top plate 60. The main spring 91 can play a shock-absorbing role after the transformer body is combined with the lower positioning assembly, protecting the transformer body from damage during transportation and moving. The main spring 91 is provided with a middle column 70 on the outside, and the middle column 70 is a hollow pipe column. The lower end of the middle column 70 is connected to the bottom plate 40, and the upper end of the middle column 70 is connected to the middle plate 50. A second center hole 51 and a first connecting hole 52 are provided on the middle plate 50, the upper end of the center column 70 is connected to the inner wall of the second center hole 51, the positioning pin 80 and the main spring 91 pass through the second center hole 51, and a bolt 53 is passed through the second connecting hole 52, and both ends of the bolt 53 extend out of the second connecting hole 52 respectively. A nut 54 is installed on one end of the bolt 53 on the lower end surface of the middle plate 50, and a washer 55 is provided between the nut 54 and the middle plate 50, and the bolt is fixedly installed on the middle plate 50 by the nut 54 and the washer 55. Four second connection holes 52 are set at the four corners of the middle plate 50. Four bolts 53 pass through the four second connection holes 52 and are connected to the top plate 60 at the other end. The top plate 60 has a third center hole 61 and four second connection holes 62. The other ends of the four bolts 53 are inserted into the corresponding second connection holes 62. Auxiliary springs 92 are sleeved on the bolts 53. Four auxiliary springs 92 are set. The auxiliary springs 92 are set on the basis of the main springs 91, which has a better shock absorption effect. At the same time, even if the main springs 91 or part of the auxiliary springs 92 fail, the shock absorption effect of the lower positioning assembly can be guaranteed to prevent the transformer body from being damaged by vibration during transportation or moving. Shock absorption pads 90 are set on the top plate 60. The positioning pin 80 passes through the third center hole 61 and the fourth center hole 94 processed on the shock-absorbing pad 90. A positioning ring 81 is sleeved on the positioning pin 80. The top of the positioning pin 80 is set to be conical. A conical groove 82 matching the conical shape of the top of the positioning pin 80 is provided inside the positioning ring 81. The positioning ring 81 is sleeved on the top of the positioning pin 80 through the conical groove 82. The top of the positioning ring 81 is set to be conical.

[0051] A foot hole 201 is provided on the transformer body foot 200. When the transformer body descends to near the lower positioning assembly, the positioning ring 81 of the lower positioning assembly first enters the foot hole 201. As the transformer body continues to descend, the foot 200 is finally placed on the shock-absorbing pad 90. The shock-absorbing pad 90 is arranged between the top plate 60 and the body foot 200. The shock-absorbing pad 90 is arranged to prevent the body foot 200 from directly contacting with the top plate 60 and the bolt 53 to cause damage to the transformer body. After the positioning ring 81 enters the foot hole 201, during the downward movement of the transformer body, under the action of the gravity of the transformer body, the positioning ring 81 slides down and tightens along the top of the positioning pin 80. The positioning ring 81 is stretched open by the cone of the top of the positioning pin 80, and is squeezed downward to deform and closely contact with the foot hole 201 to position the transformer body. During the descent of the transformer body, the top of the positioning ring 81 is conical, which can further correct the transformer body and ensure the accuracy of installation.

[0052] Therefore, in the present application, when manual observation is inconvenient, the accuracy of the descending position of the transformer body can be ensured by the upper positioning assembly and the lower positioning assembly.

[0053] Lower positioning components are provided at both ends of the transformer body base 200. The two lower positioning components provided at both ends of the base 200 form a group of lower positioning components. A total of three groups of lower positioning components are provided at the bottom 101 of the oil tank. The three groups of lower positioning components are evenly arranged on the bottom 101 of the oil tank to ensure that the transformer body is evenly positioned and supported.

[0054] The specific transformer body installation process is as follows:

[0055] The first step: fix the transformer body to the body fixing mechanism, then connect the fixing mechanism to the oil tank cover 106 through the connecting structure, and then use the crane hook to hook the hanging plate on the oil tank cover 106 to start loading the transformer body into the oil tank 100;

[0056] Step 2: Slowly lower the transformer body inside the oil tank 100. After it is lowered to a certain height, the inclined portion 32 of the positioning insertion plate 30 provided on the oil tank cover 106 is aligned with the rectangular groove 21 provided on the support plate 20 provided on the two adjacent side corners of the oil tank 100, and then slowly lower it. Under the action of the slope of the inclined portion 32 and the gravity of the transformer body, the position of the transformer body is constantly approaching the center of the oil tank.

[0057] Step 3: When the transformer body is lowered to a certain distance from the bottom 101 of the oil tank, for example, when the distance from the bottom 101 of the oil tank is 30 mm, the distance is determined according to the height of the lower positioning assembly. The positioning ring 81 and the positioning pin 80 of the lower positioning assembly begin to be inserted into the foot hole 201 of the transformer body foot 200. Since the top of the positioning ring 81 is conical, the position of the transformer body can be further corrected during the further lowering of the transformer body, until the transformer body is finally completely placed on the lower positioning assembly.

[0058] During the installation process of the transformer body, the present application sets an upper positioning component and a lower positioning component. The upper positioning component is provided with an inclined portion, and the top of the positioning ring of the lower positioning component is conical, so that the entire lowering process does not require excessive manual intervention in the lowering position. The transformer body has high lowering efficiency and accuracy. The lower positioning component also includes a main spring, a secondary spring and a shock-absorbing pad, which has a shock-absorbing effect and protects the transformer body.

[0059] The present application also relates to a transformer, which is installed in an oil tank to form an oil-immersed transformer. When the transformer is installed in the oil tank 100, the upper positioning assembly and the lower positioning assembly are used for positioning, so that the transformer installation process is fast and efficient. At the same time, the lower positioning assembly protects the transformer body, so that the transformer is less affected by vibration during transportation and moving, and the transformer structure will not be damaged by vibration.

[0060] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A transformer body positioning structure, characterized in that: include: An upper positioning assembly is arranged on the upper part of the oil tank where the transformer body is placed, and includes a support plate and a positioning insertion plate. The support plate is arranged at an angle formed by two adjacent side surfaces of the oil tank, the support plate is arranged on two adjacent side surfaces close to one end of the upper opening of the oil tank, a groove is provided on the support plate, the positioning insertion plate is arranged on the oil tank cover, the positioning insertion plate includes a connecting portion arranged at the upper end and an inclined portion arranged at the lower end, the connecting portion is arranged in a shape adapted to the groove, a gap is provided between the connecting portion and the groove, and the cross-sectional size of the inclined portion gradually increases from the lowermost end toward the connecting portion to form a slope; The lower positioning assembly is arranged at the lower part of the oil tank and is adapted to the bottom foot of the device body. The bottom foot is provided with a bottom foot hole. The lower positioning assembly comprises a bottom plate, a positioning pin, an intermediate plate, a top plate, a shock-absorbing pad, a positioning ring, a secondary spring and a main spring. The bottom plate is fixed to the bottom of the oil tank, the positioning pin is arranged on the bottom plate, the positioning pin passes through the intermediate plate, the top plate and the shock-absorbing pad, a main spring is sleeved on the positioning pin, one end of the main spring is connected to the bottom plate, and the other end is connected to the top plate, a secondary spring is arranged between the intermediate plate and the top plate, a shock-absorbing pad is arranged on the top plate, and the shock-absorbing pad is arranged below the bottom foot. A positioning ring is sleeved on the top of the positioning pin, the top of the positioning pin is arranged in a cone shape, a conical groove adapted to the top of the positioning pin is opened inside the positioning ring, the top of the positioning ring is conical, and the positioning pin and the positioning ring pass through the bottom foot hole.

2. The transformer body positioning structure according to claim 1, characterized in that: There are four support plates, which are respectively installed on four corners formed by two adjacent side surfaces of the oil tank.

3. The transformer body positioning structure according to claim 1, characterized in that: The groove formed on the support plate is a rectangular groove, the connecting portion is configured to be a rectangle matching the rectangular groove, and the inclined portion includes four inclined surfaces, which extend from the lower end of the inclined portion to the connecting portion respectively.

4. The transformer body positioning structure according to claim 3, characterized in that: The gap between the rectangular groove and the connecting portion in the length direction and the width direction is 5 mm.

5. The transformer body positioning structure according to claim 1, characterized in that: The support plate is 60-80 mm away from the top end of the mounting side surface.

6. The transformer body positioning structure according to claim 1, characterized in that: The lower positioning components are arranged at two ends of the base.

7. The transformer body positioning structure according to claim 1, characterized in that: The lower positioning assembly also includes a center column and a bolt. A first center hole is opened on the bottom plate, and the positioning pin is installed in the first center hole. A center column is sleeved on the outside of the main spring. One end of the center column is fixed on the bottom plate, and the other end of the center column is fixed on the middle plate. A second center hole and a first connecting hole are opened on the middle plate, and the second center hole is for the positioning pin and the main spring to pass through. A third center hole and a second connecting hole are opened on the top plate, and the positioning pin passes through the third center hole. One end of the bolt is arranged in the second connecting hole and the other end passes through the first connecting hole. A secondary spring is sleeved on the bolt.

8. The transformer body positioning structure according to claim 7, characterized in that: There are four first connecting holes on the middle plate, each of which is penetrated by a bolt, and each bolt is sleeved with a secondary spring.

9. The transformer body positioning structure according to claim 7, characterized in that: The lower positioning assembly also includes a nut and a washer. The nut cooperates with the portion of the bolt extending out of the lower end surface of the middle plate to fix the bolt between the top plate and the middle plate. A washer is arranged between the nut and the lower end surface of the middle plate.

10. A transformer, characterized in that: The invention comprises a transformer body positioning structure as described in any one of claims 1 to 9.

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