Transportation fixing structure of dry-type transformer

Abstract

The utility model belongs to transformer technical field especially relates to a transport fixed structure of dry -type transformer, including connecting rod, the connecting rod passes through the upper clamp piece and lower clamp piece in the inside of transformer, and the lower extreme of connecting rod is fixedly connected with the shell of transformer, and the upper end of connecting rod extends out the shell of transformer and is connected with the fixed ring, and the fixed ring is used for connecting with the outer packing box. The connecting rod has four in all. The utility model can realize the fixation to the inside of transformer, guarantees that the inside of marine super -high transformer will not be too much shake damage, guarantees the stability of overall structure. The fixed ring and outer packing box can be connected through the rope, and the connecting mode is same with the connecting mode of the shell of transformer and outer packing box.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, and in particular relates to a transportation and fixing structure for a dry-type transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. Its main components are the primary coil, the secondary coil, and the iron core (magnetic core). Its main functions include voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). According to its application, it can be divided into power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impulse transformers, instrument transformers, electronic transformers, reactors, and switches).

[0003] Transformers need to be shipped across borders. Due to their extra-large size and the fact that they are shipped as a single unit with their casing, the main body of the transformer cannot be secured with cables inside. The turbulence of sea transport cannot guarantee the stability of the overall structure of the transformer. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a transportation and fixing structure for dry-type transformers, thereby ensuring the stability of the overall structure.

[0005] In view of this, the present invention provides a transport and fixing structure for a dry-type transformer, including a connecting rod, which passes through an upper clamp and a lower clamp inside the transformer. The lower end of the connecting rod is fixedly connected to the transformer shell, and the upper end of the connecting rod extends out of the transformer shell and is connected to a fixing ring, which is used to connect to an outer packaging box.

[0006] In this technical solution, by connecting one end of the connecting rod to the transformer casing, passing through the upper and lower clamps in the middle, and extending the upper end out of the transformer casing and fixed to the outer packaging box via a fixing ring, the internal structure of the transformer can be secured. This ensures that the internal structure of the ultra-high-voltage transformer transported by sea will not be damaged by excessive shaking, thus guaranteeing the stability of the overall structure. The fixing ring and the outer packaging box can be connected by rope, using the same connection method as that between the transformer casing and the outer packaging box.

[0007] Furthermore, the connecting rod includes a top rod and a plurality of short rods connected in series. One end of each short rod has a first threaded hole, and the other end extends out to form a first stud. The shape and size of the first threaded hole match the first stud. The first threaded hole of the short rod near the lower section of the transformer housing is screwed into the protruding stud on the transformer housing. Both the upper and lower clamps have through holes that match the outer circumference of the short rods. The lower end of the top rod is threadedly connected to the short rods, and the upper end of the top rod is connected to the fixing ring.

[0008] In this technical solution, setting the connecting rod as multiple short rods connected in series can reduce the difficulty of processing and assembly.

[0009] Furthermore, the top rod has a second threaded hole at one end facing the fixing ring, and the fixing ring has a second stud at the other end facing the top rod. The second stud is threadedly connected to the second threaded hole, and a locking structure is provided between the top rod and the second stud.

[0010] In this technical solution, since various transformers have different models, transformers with similar specifications will use similar outer packaging boxes to save costs. Therefore, if there is a difference in height, the depth of the second stud of the fixing ring screwed into the second threaded hole of the top rod is used for adjustment. The depth of screwing in varies, and the ends may not be in contact. In this case, the threaded connection between the second threaded hole and the second stud is unstable. The locking structure can lock the threaded connection between the second threaded hole and the second stud.

[0011] Furthermore, the locking structure includes a locking sleeve, an inner locking piece extending from the inner ring of the locking sleeve toward the center, and multiple outer locking pieces extending outward from the outer periphery of the locking sleeve. A first locking groove is provided on the second stud, the locking sleeve is slidably sleeved on the second stud, the inner locking piece is engaged in the first locking groove, and a second locking groove is provided on the outer periphery of the push rod, with the outer locking piece bent inward and engaged in the second locking groove.

[0012] In this technical solution, during installation, a top rod is screwed onto the short rod at the top, with the head of the top rod extending outside the transformer casing. Then, the second stud of the fixing ring is screwed into the second threaded hole to a suitable depth, ensuring that the fixing ring does not protrude above the top of the outer packaging box. Next, a sliding sleeve is fitted outside the second stud, and the inner locking piece is locked in the first locking groove. The locking sleeve slides downward and comes into contact with the upper end of the top rod. Then, the fixing ring is slightly rotated so that at least two outer locking pieces of the locking sleeve are aligned with the second locking groove. Finally, the outer locking pieces are bent downward and locked into the second locking groove, thus keeping the positions of the locking sleeve, the top rod, and the fixing ring fixed.

[0013] Furthermore, the top rod head is in the shape of a hexagonal prism, and a second locking groove is formed on each side of the hexagonal prism.

[0014] In this technical solution, the shape of the hexagonal prism facilitates slotting.

[0015] Furthermore, there are six second locking grooves, which are distributed on the six faces of the hexagonal prism.

[0016] Furthermore, there are nine outer locking plates, which are evenly distributed along the circumference of the locking sleeve.

[0017] Furthermore, a locking nut is threaded onto the second stud. The locking nut is located above the locking sleeve, and multiple third locking grooves are provided on the outer periphery of the locking nut. The outer locking plate on the locking sleeve can be bent and inserted into the third locking groove.

[0018] In this technical solution, the locking nut is rotated so that the lower end of the locking nut is in contact with or close to the upper end of the locking sleeve, and at least two outer locking pieces of the locking sleeve are aligned with the third locking groove. Then, the outer locking pieces on the locking sleeve are bent and inserted into the third locking groove. The locking nut further enhances the locking relationship between the retaining ring and the push rod.

[0019] Furthermore, there are six third locking grooves, which are distributed on the six surfaces of the locking nut.

[0020] Furthermore, there are four connecting rods in total.

[0021] The beneficial effects of this utility model are:

[0022] 1. By connecting one end of the connecting rod to the transformer casing, passing through the upper and lower clamps in the middle, and extending the upper end out of the transformer casing and fixed to the outer packaging box via a fixing ring, the internal structure of the transformer can be secured. This ensures that the internal structure of the ultra-high-voltage transformer shipped at sea will not be damaged by excessive shaking, thus guaranteeing the stability of the overall structure. The fixing ring and the outer packaging box can be connected by rope, using the same connection method as that between the transformer casing and the outer packaging box.

[0023] 2. Setting the connecting rod as multiple short rods connected in series can reduce the difficulty of processing and assembly.

[0024] 3. Due to the different models of various transformers, transformers with similar specifications and models will use similar outer packaging boxes to save costs. Therefore, if there is a difference in height, the depth of the second stud of the fixing ring screwed into the second threaded hole of the top rod is used for adjustment. The depth of screwing in varies, and the ends may not be in contact. In this case, the threaded connection between the second threaded hole and the second stud is unstable. The locking structure can lock the threaded connection between the second threaded hole and the second stud. Attached Figure Description

[0025] Figure 1 It is a 3D diagram of a transformer;

[0026] Figure 2 This is a partial schematic diagram of the inside of a transformer;

[0027] Figure 3 It is a 3D view of the connecting rod;

[0028] Figure 4 This is an exploded view of the connection between the push rod and the retaining ring;

[0029] Figure 5It is a 3D diagram of the short rod;

[0030] Figure 6 yes Figure 4 A magnified view of a section at point A in the middle;

[0031] Figure 7 It is a 3D diagram of a tightened nut.

[0032] The markings in the diagram are as follows:

[0033] 1. Connecting rod; 2. Upper clamp; 3. Lower clamp; 4. Outer shell; 5. Retaining ring; 6. Top rod; 7. Short rod; 9. First threaded hole; 10. First stud; 11. Protruding stud; 12. Through hole; 13. Second threaded hole; 14. Second stud; 15. Locking sleeve; 16. Inner locking plate; 17. Outer locking plate; 18. First locking groove; 19. Second locking groove; 20. Locking nut; 21. Third locking groove. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0036] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0038] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0039] Example 1:

[0040] like Figure 1-3 As shown, a transport and fixing structure for a dry-type transformer includes connecting rods 1. The connecting rods 1 pass through an upper clamp 2 and a lower clamp 3 inside the transformer. The lower end of the connecting rods 1 is fixedly connected to the transformer housing 4, and the upper end of the connecting rods 1 extends out of the transformer housing 4 and is connected to a fixing ring 5. The fixing ring 5 is used to connect to an outer packaging box. There are four connecting rods 1 in total.

[0041] By connecting one end of the connecting rod 1 to the transformer housing 4, passing through the upper clamp 2 and lower clamp 3 in the middle, and extending out of the transformer housing 4 and fixed to the outer packaging box via the fixing ring 5, the internal structure of the transformer can be secured, ensuring that the internal structure of the ultra-high-voltage transformer at sea will not be damaged by excessive shaking, and ensuring the stability of the overall structure. The fixing ring 5 and the outer packaging box can be connected by rope, in the same way as the connection between the transformer housing 4 and the outer packaging box (not shown in the figure).

[0042] Example 2:

[0043] like Figure 3-7 As shown, the connecting rod 1 includes a top rod 6 and multiple short rods 7 connected in series. One end of each short rod 7 has a first threaded hole 9, and the other end extends into a first stud 10. The first threaded hole 9 matches the shape and size of the first stud 10. The first threaded hole 9 of the short rod 7 closest to the lower section of the transformer housing 4 is threadedly connected to a protrusion 11 on the transformer housing 4. Both the upper clamp 2 and the lower clamp 3 have through holes 12 that match the outer circumferential dimensions of the short rod 7. The lower end of the top rod 6 is threadedly connected to the short rod 7, and the upper end of the top rod 6 is connected to a retaining ring 5. Setting the connecting rod 1 as multiple short rods 7 connected in series reduces processing and assembly difficulties.

[0044] Example 3:

[0045] like Figure 4-7 As shown,

[0046] The top rod 6 has a second threaded hole 13 at one end facing the fixing ring 5, and the fixing ring 5 has a second stud 14 at one end facing the top rod 6. The second stud 14 is threadedly connected to the second threaded hole 13, and a locking structure is also provided between the top rod 6 and the second stud 14.

[0047] Because various transformers have different models, transformers with similar specifications and models will use similar outer packaging boxes to save costs. Therefore, if there is a difference in height, the depth of the second stud 14 of the fixing ring 5 into the second threaded hole 13 of the top rod 6 is adjusted. The depth of screwing in varies, and the ends may not be in contact. In this case, the threaded connection between the second threaded hole 13 and the second stud 14 is unstable. The locking structure can lock the threaded connection between the second threaded hole 13 and the second stud 14.

[0048] The locking structure includes a locking sleeve 15, an inner locking piece 16 extending from the inner ring of the locking sleeve 15 towards the center, and multiple outer locking pieces 17 extending outward from the outer periphery of the locking sleeve 15. A first locking groove 18 is provided on the second stud 14. The locking sleeve 15 is slidably sleeved on the second stud 14. The inner locking piece 16 is engaged in the first locking groove 18. A second locking groove 19 is provided on the outer periphery of the push rod 6. The outer locking piece 17 is bent inward and engaged in the second locking groove 19.

[0049] During installation, the top rod 6 is screwed onto the short rod 7 at the top, with the head of the top rod 6 extending out of the transformer housing 4. Then, the second stud 14 of the fixing ring 5 is screwed into the second threaded hole 13 to a suitable depth, so that the fixing ring 5 does not protrude above the top of the outer packaging box. Then, the sliding sleeve is placed outside the second stud 14, and the inner locking piece 16 is locked in the first locking groove 18. The locking sleeve 15 slides down and touches the upper end of the top rod 6. Then, the fixing ring 5 is slightly rotated so that at least two outer locking pieces 17 of the locking sleeve 15 are aligned with the second locking groove 19. Finally, the outer locking pieces 17 are bent down and inserted into the second locking groove 19 to keep the positions of the locking sleeve 15, the top rod 6, and the fixing ring 5 fixed.

[0050] The top rod 6 has a hexagonal prism head, and the second locking groove 19 is formed on each side of the hexagonal prism. The shape of the hexagonal prism facilitates grooving. There are six second locking grooves 19, which are distributed on the six faces of the hexagonal prism. There are nine outer locking pieces 17, which are evenly distributed around the locking sleeve 15.

[0051] A locking nut 20 is threaded onto the second stud 14. The locking nut 20 is located above the locking sleeve 15. Multiple third locking grooves 21 are formed on the outer circumference of the locking nut 20. The outer locking pieces 17 on the locking sleeve 15 can be bent and inserted into the third locking grooves 21. Rotating the locking nut 20 causes at least two of the outer locking pieces 17 on the locking sleeve 15 to align with or be close to the upper end of the locking nut 20, aligning them with the third locking grooves 21. Then, the outer locking pieces 17 on the locking sleeve 15 are bent and inserted into the third locking grooves 21. The locking nut 20 further enhances the locking relationship between the retaining ring 5 and the push rod 6.

[0052] There are six third locking grooves 21, which are distributed on the six surfaces of the locking nut 20.

[0053] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A transport and fixing structure for a dry-type transformer, characterized in that... The transformer includes a connecting rod (1) that passes through the upper clamp (2) and lower clamp (3) inside the transformer. The lower end of the connecting rod (1) is fixedly connected to the transformer housing (4). The upper end of the connecting rod (1) extends out of the transformer housing (4) and is connected to a fixing ring (5). The fixing ring (5) is used to connect to the outer packaging box.

2. The transport and fixing structure for a dry-type transformer according to claim 1, characterized in that, The connecting rod (1) includes a top rod (6) and a plurality of short rods (7) connected in series. One end of the short rod (7) is provided with a first threaded hole (9) and the other end extends out with a first stud (10). The shape and size of the first threaded hole (9) and the first stud (10) are matched. The first threaded hole (9) of the short rod (7) near the lower section of the transformer housing (4) is threadedly connected to the protrusion (11) on the transformer housing (4). The upper clamp (2) and the lower clamp (3) are both provided with through holes (12) that match the outer circumference of the short rod (7). The lower end of the top rod (6) is threadedly connected to the short rod (7), and the upper end of the top rod (6) is connected to the fixing ring (5).

3. The transport and fixing structure for a dry-type transformer according to claim 2, characterized in that, The top rod (6) has a second threaded hole (13) at one end facing the fixing ring (5), and the fixing ring (5) has a second stud (14) at one end facing the top rod (6). The second stud (14) is threadedly connected to the second threaded hole (13), and a locking structure is also provided between the top rod (6) and the second stud (14).

4. The transport and fixing structure for a dry-type transformer according to claim 3, characterized in that, The locking structure includes a locking sleeve (15), an inner locking piece (16) extending from the inner ring of the locking sleeve (15) toward the center, and multiple outer locking pieces (17) extending outward from the outer periphery of the locking sleeve (15). A first locking groove (18) is provided on the second stud (14). The locking sleeve (15) is slidably sleeved on the second stud (14). The inner locking piece (16) is locked in the first locking groove (18). A second locking groove (19) is provided on the outer periphery of the push rod (6). The outer locking piece (17) is bent inward and locked into the second locking groove (19).

5. The transport and fixing structure for a dry-type transformer according to claim 4, characterized in that, The top rod (6) has a hexagonal prism head, and a second locking groove (19) is provided on each side of the hexagonal prism.

6. The transport and fixing structure for a dry-type transformer according to claim 5, characterized in that, There are six second locking grooves (19), which are located on the six faces of the hexagonal prism.

7. The transport and fixing structure for a dry-type transformer according to claim 6, characterized in that, There are nine outer locking pieces (17), which are evenly distributed around the locking sleeve (15).

8. The transport and fixing structure for a dry-type transformer according to claim 7, characterized in that, The second stud (14) is also threaded with a locking nut (20). The locking nut (20) is located above the locking sleeve (15). The locking nut (20) has multiple third locking grooves (21) on its outer periphery. The outer locking piece (17) on the locking sleeve (15) can be bent and inserted into the third locking groove (21).

9. The transport and fixing structure for a dry-type transformer according to claim 8, characterized in that, There are six third locking grooves (21), which are distributed on the six surfaces of the locking nut (20).

10. The transport and fixing structure for a dry-type transformer according to claim 1, characterized in that, There are four connecting rods (1).

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