An assembled transformer foundation structure
Patent Information
- Application Number
- CN202522174221.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-14
AI Technical Summary
变压器主要由油箱、铁芯、绕组、分接开关、储油柜、散热器和其他部件组成，其中油箱为整个变压器的整体外壳，用于安装容纳铁芯和绕组，同时填充矿物油避免使用时腐蚀氧化产生电弧，装配式变压器的优点在于可以分开输送在安装地进行组装，以降低运载吊装成本，但是对操作人员的专业知识和经验要求较高，并且人工组装误差较大，尤其是铁芯和绕组的安装固定尤为重要，磕碰错位均可能导致变压器报废
[0010]本实用新型的有益效果是：1）本实用新型通过承接机构将箱体内的铁芯预装位置进行限位，通过滑槽板将安装架限位固定在箱体内，在安装铁芯和绕组时可以预先定位，等安装完成后校正位置即可通过压板组件将安装架固定限位，同时在箱体的底部设置调节机构，可以对整体装配后的变压器进行旋转微调，便于在安装场地移动调节，提高装配效率，降低损伤风险且结构简单使用方便。
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Figure CN224922552U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer equipment technology, specifically relating to a prefabricated transformer foundation structure. Background Technology
[0002] With the profound adjustment of the global energy structure and the accelerated digitalization of the power industry, steel-structure prefabricated intelligent substations, as a new type of substation integrating high efficiency, environmental protection, and intelligence, are emerging in power infrastructure construction with their unique advantages. A transformer mainly consists of an oil tank, iron core, windings, tap changer, oil conservator, radiator, and other components. The oil tank serves as the overall outer shell of the transformer, housing the iron core and windings, and is filled with mineral oil to prevent corrosion, oxidation, and arcing during use. The advantage of prefabricated transformers is that they can be transported separately and assembled at the installation site, reducing transportation and hoisting costs. However, this requires a high level of professional knowledge and experience from operators, and manual assembly has significant errors, especially in the installation and fixing of the iron core and windings; even minor bumps or misalignments can lead to the transformer being scrapped. Utility Model Content
[0003] The purpose of this utility model is to solve the problems existing in the background art mentioned above, and to provide a prefabricated transformer foundation structure that can limit and fix the installation position of the iron core and winding in the oil tank, reduce installation errors, improve the assembly efficiency of the transformer and reduce losses.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated transformer foundation structure, including a housing, wherein a set of supporting mechanisms are symmetrically arranged inside the housing, the supporting mechanism including a support block, a support base plate, a sliding plate, a mounting frame, and a pressure plate assembly. The support block is located at both ends inside the housing, and two support base plates are arranged on the left and right sides of the support block and fastened to the support block by bolts. The bottom surface of the sliding plate is fixedly connected to the two support base plates. The sliding plate has a connecting groove in the left and right direction and a groove in the front and back direction. The mounting frame is T-shaped and located in the connecting groove and the groove for connecting the iron core support. Pressure plate assemblies are arranged on the left and right sides of the sliding plate to position and support the mounting frame. The support block is also provided with a blocking mechanism, including a fixed seat and a stop block. The fixed seat is located on both sides of the groove, and the stop block is L-shaped and connected to the fixed seat so that the inner wall of the stop block is aligned with the end of the groove away from the pressure plate assembly, thereby limiting and blocking the mounting frame. An adjustment mechanism is also provided at the bottom of the housing.
[0005] Furthermore, the pressure plate assembly includes a pressure block, an adjusting column, a supporting column, and a spring. The pressure plate has a circular slot, and the bottom of the pressure plate has a through slot in the left and right direction. One end of the supporting column is fixed to the supporting block, and the other end passes through the circular slot and is slidably connected to the pressure block. A spring is sleeved on the supporting column between the pressure block and the supporting block. The adjusting column is fixed on the side away from the sliding plate and is tightly connected to the through slot on the bottom surface of the pressure block. The bottom surface of the other end of the pressure block is in contact with the top surface of the sliding plate.
[0006] Furthermore, the adjustment mechanism includes a connecting plate, an upper load-bearing plate, a lower load-bearing plate, a limiting plate, a convex plate, a concave plate, a limiting ring, and fasteners. The connecting plate is fixed to the top surface of the upper load-bearing plate and is fixedly connected to the bottom of the housing. A limiting ring is provided on the outer edge of the top surface of the lower load-bearing plate. A concave plate is rotatably connected inside the limiting ring. The convex plate, the limiting plate, and the upper load-bearing plate are sequentially connected to the concave plate, so that the upper load-bearing plate and the lower load-bearing plate can be rotatably connected. The fasteners are located at the four corners between the two to connect and fix them.
[0007] Furthermore, the fastener includes an upper extension plate, a lower extension plate, and a connecting bolt. The lower extension plate is located on the left and right sides of the lower load-bearing plate, and the upper extension plate is located on the upper load-bearing plate and is in a corresponding position. The upper extension plate is also provided with a connecting hole. The lower end of the connecting bolt is fixed to the lower extension plate, and the upper end is inserted into the connecting hole.
[0008] Furthermore, the mounting bracket consists of a sliding part and a fixed part, and the width of the fixed part is greater than that of the sliding part, so that when the sliding part is slidably connected with the connecting groove, the fixed part is located above the sliding plate, and the sliding part in the other direction is located in the groove at this time.
[0009] Furthermore, the length of the groove is the width of the slide plate, and its width is greater than the width of the mounting bracket, so that when the mounting bracket moves back and forth along the connecting groove, the tail can be finely adjusted within the groove.
[0010] The beneficial effects of this utility model are: 1) This utility model limits the pre-installed position of the iron core in the box through the receiving mechanism, and limits and fixes the mounting frame in the box through the sliding plate. When installing the iron core and winding, it can be pre-positioned. After the installation is completed, the position can be corrected and the mounting frame can be fixed and limited by the pressure plate assembly. At the same time, an adjustment mechanism is set at the bottom of the box, which can rotate and fine adjust the transformer after the overall assembly, which is convenient to move and adjust at the installation site, improves the assembly efficiency, reduces the risk of damage, and has a simple structure and is easy to use. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0012] Figure 2 This is a top view of the present invention.
[0013] Figure 3This is a cross-sectional schematic diagram of the present invention.
[0014] Figure 4 This is a structural diagram of the receiving mechanism.
[0015] Figure 5 for Figure 4 Exploded exploded diagram.
[0016] Figure 6 This is a schematic diagram of the adjustment mechanism.
[0017] In the diagram: 1. Housing; 2. Receiving mechanism; 3. Support block; 4. Support base plate; 5. Sliding plate; 6. Mounting bracket; 7. Pressure plate assembly; 8. Connecting groove; 9. Groove; 10. Blocking mechanism; 11. Fixed base; 12. Stop block; 13. Adjusting mechanism; 14. Pressure block; 15. Adjusting column; 16. Support column; 17. Spring; 18. Circular groove; 19. Through groove; 20. Connecting plate; 21. Upper load-bearing plate; 22. Lower load-bearing plate; 23. Limiting plate; 24. Protruding plate; 25. Concave plate; 26. Limiting ring; 27. Fastener; 28. Upper extension plate; 29. Lower extension plate; 30. Connecting bolt; 31. Connecting hole; 32. Sliding part; 33. Fixed part. Detailed Implementation
[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.
[0019] Example: As shown in the figure, the prefabricated transformer foundation structure of this utility model includes a housing 1. A set of supporting mechanisms 2 are symmetrically arranged inside the housing 1. Each supporting mechanism 2 includes a support block 3, a support base plate 4, a sliding plate 5, a mounting frame 6, and a pressure plate assembly 7. The support block 3 is located at both ends inside the housing 1. Two support base plates 4 are arranged on the left and right sides of the support block 3 and are fastened to the support block 3 with bolts. The bottom surface of the sliding plate 5 is fixedly connected to the two support base plates 4. The sliding plate 5 has connecting grooves 8 along the left and right directions and in the front and back directions... A groove 9 is provided, and the mounting bracket 6 is T-shaped and located in the connecting groove 8 and the groove 9 for connecting the iron core support. Pressure plate assemblies 7 are provided on the left and right sides of the sliding plate to position and clamp the mounting bracket 6. The support block 3 is also provided with a blocking mechanism 10, including a fixed seat 11 and a stop block 12. The fixed seat 11 is located on both sides of the groove 9, and the stop block 12 is L-shaped and connected to the fixed seat 11, so that the inner wall of the stop block 12 is aligned with the end of the groove 9 away from the pressure plate assembly 7, thereby limiting and blocking the mounting bracket 6. An adjustment mechanism 13 is also provided at the bottom of the housing 1. The connecting groove 8 is used to slide one end of the mounting bracket 6, and the other end is connected to the groove 9, so that the mounting bracket 6 is limited in front and behind on the sliding plate 5. During installation, the iron core and winding components are first fixedly connected to the left and right mounting brackets 6. Then, the mounting bracket 6 is snapped into the connecting groove 8 from above, and the groove 9 is connected to the mounting bracket 6 in a limited position. At this time, the mounting bracket 6 is moved to the left and right ends so that it is limited by the blocking mechanism 10. Then, the pressure plate assembly 7 is used to clamp and fix the mounting bracket 6 to complete the installation. The installation position of the internal parts is limited and guided by the pre-installation of the sliding plate 5. The position of the mounting bracket 6 on the sliding plate 5 can also be manually adjusted. Then, the installation is completed by fixing it with the pressure plate assembly 7. Compared with the traditional assembly structure, the limiting and clamping structure can assist in positioning and fixing, improve the assembly effect and avoid damage to the parts.
[0020] The pressure plate assembly 7 includes a pressure block 14, an adjusting column 15, a support column 16, and a spring 17. A circular slot 18 is provided on the pressure plate, and a through slot 19 in the left and right direction is provided on the bottom of the pressure plate. One end of the support column 16 is fixed on the support block 3, and the other end passes through the circular slot 18 and is slidably connected to the pressure block 14. A spring 17 is sleeved on the support column 16 between the pressure block 14 and the support block 3. The adjusting column 15 is fixed on the side away from the slide plate 5 and is tightly connected to the through slot 19 on the bottom surface of the pressure block 14. The bottom surface of the other end of the pressure block 14 is in contact with the top surface of the slide plate 5. The rear end of the pressure block 14 is held in place by the adjusting column 15, the front end is connected to the top surface of the slide plate 5, and the middle part is held in place by the support column 16 and the spring 17, forming a three-point support. At the same time, the bottom of the pressure block 14 is provided with a through groove 19 to accommodate the movement of the adjusting column 15, and the middle part is provided with a circular slot 18 that is slidably connected to the support column 16. When the connecting nut above the support column 16 is loosened, the pressure block 14 can be moved along the circular slot 18 and the through groove 19, so that the pressure block 14 moves closer to or away from the slide plate 5, thereby clamping or releasing the mounting bracket 6. After adjusting the pressure block 14, tightening the connecting nut will complete the clamping or releasing process.
[0021] The adjustment mechanism 13 includes a connecting plate 20, an upper load-bearing plate 21, a lower load-bearing plate 22, a limiting plate 23, a convex plate 24, a concave plate 25, a limiting ring 26, and fasteners 27. The connecting plate 20 is fixed to the top surface of the upper load-bearing plate 21 and is fixedly connected to the bottom of the housing 1. A limiting ring 26 is provided on the outer edge of the top surface of the lower load-bearing plate 22. A concave plate 25 is rotatably connected inside the limiting ring 26. The convex plate 24, the limiting plate 23, and the upper load-bearing plate 21 are connected sequentially on the concave plate 25, so that the upper load-bearing plate 21 and the lower load-bearing plate 22 can be rotatably connected. The fasteners 27 are located at the four corners between the two to connect and fix them. The concave plate 25 is rotatably connected to the lower load-bearing plate 22 by the limiting ring 26. Then, the convex plate 24 is fastened to the concave plate 25 so that it can also be self-installed. Finally, the top of the convex plate 24 is fixedly connected to the limiting plate 23 and installed at the lower end of the upper weighing plate. This allows the upper load-bearing plate and the lower load-bearing plate 22 to bear load vertically while also rotating vertically. The fastener 27 can adjust the distance between the upper load-bearing plate and the lower load-bearing plate 22, thereby increasing the static friction between the two load-bearing plates and adjusting the smoothness of the rotation. This makes it easy to rotate the transformer or fix it in place during installation.
[0022] Fastener 27 includes an upper extension plate 28, a lower extension plate 29, and a connecting bolt 30. The lower extension plate 29 is located on the left and right sides of the lower support plate 22, and the upper extension plate 28 is located on the upper support plate 21 and is positioned accordingly. The upper extension plate 28 also has a connecting hole 31. The lower end of the connecting bolt 30 is fixed to the lower extension plate 29, and the upper end is inserted into the connecting hole 31. The connecting hole 31 accommodates the connecting bolt 30, allowing it to be removed or inserted, enabling the connecting bolt 30 to connect the upper extension plate 28 and the lower extension plate 29, or to disconnect them. When connected, the adjusting mechanism 13 is locked and cannot rotate; when released, it can rotate under external force, facilitating direction adjustment during installation and reducing space occupation.
[0023] The mounting bracket 6 consists of a sliding part 32 and a fixing part 33, and the width of the fixing part 33 is greater than that of the sliding part 32. When the sliding part 32 is slidably connected to the connecting groove 8, the fixing part 33 is located above the sliding plate, and the sliding part 32 in the other direction is located in the groove 9.
[0024] The length of the groove 9 is the width of the slide plate 5, and its width is greater than the width of the mounting bracket 6, so that when the mounting bracket 6 moves back and forth along the connecting groove 8, the tail can be finely adjusted in the groove 9.
[0025] This utility model uses a receiving mechanism to limit the pre-installed position of the iron core inside the box, and uses a sliding plate to limit and fix the mounting frame inside the box. The iron core and windings can be pre-positioned during installation. After installation, the position can be corrected and the mounting frame can be fixed and limited by the pressure plate assembly. At the same time, an adjustment mechanism is set at the bottom of the box, which can rotate and fine-tune the overall assembled transformer. This facilitates movement and adjustment at the installation site, improves assembly efficiency, reduces the risk of damage, and has a simple structure and is easy to use.
[0026] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A prefabricated transformer foundation structure, characterized in that: The device includes a housing, within which a set of symmetrically arranged receiving mechanisms are provided. Each receiving mechanism includes a support block, a support base plate, a sliding plate, a mounting bracket, and a pressure plate assembly. The support block is located at both ends of the housing. Two support base plates are arranged on the left and right sides of the support block and are fastened to the support block with bolts. The bottom surface of the sliding plate is fixedly connected to the two support base plates. The sliding plate has connecting grooves along the left and right directions and recesses along the front and back directions. The mounting bracket, in a T-shape, is located within the connecting grooves and recesses and is used to connect the iron core support. Pressure plate assemblies are provided on the left and right sides of the sliding plate to position and clamp the mounting bracket. A blocking mechanism is also provided on the support block, including a fixed seat and a stop block. The fixed seat is located on both sides of the recess, and the stop block, in an L-shape, is connected to the fixed seat, aligning the inner wall of the stop block with the end of the recess away from the pressure plate assembly, thus limiting and blocking the mounting bracket. An adjustment mechanism is also provided at the bottom of the housing.
2. The prefabricated transformer foundation structure according to claim 1, characterized in that: The pressure plate assembly includes a pressure block, an adjusting column, a support column, and a spring. The pressure plate has a circular slot and a through slot in the left-right direction at the bottom. One end of the support column is fixed to the support block, and the other end passes through the circular slot and is slidably connected to the pressure block. A spring is sleeved on the support column between the pressure block and the support block. The adjusting column is fixed on the side away from the sliding plate and is tightly connected to the through slot on the bottom surface of the pressure block. The bottom surface of the other end of the pressure block is in contact with the top surface of the sliding plate.
3. The prefabricated transformer foundation structure according to claim 1, characterized in that: The adjustment mechanism includes a connecting plate, an upper load-bearing plate, a lower load-bearing plate, a limiting plate, a convex plate, a concave plate, a limiting ring, and fasteners. The connecting plate is fixed to the top surface of the upper load-bearing plate and is fixedly connected to the bottom of the box. A limiting ring is provided on the outer edge of the top surface of the lower load-bearing plate. A concave plate is rotatably connected inside the limiting ring. The convex plate, the limiting plate, and the upper load-bearing plate are connected in sequence on the concave plate, so that the upper load-bearing plate and the lower load-bearing plate can be rotatably connected. The fasteners are located at the four corners between the two to connect and fix them.
4. The prefabricated transformer foundation structure according to claim 3, characterized in that: The fastener includes an upper extension plate, a lower extension plate, and a connecting bolt. The lower extension plate is located on the left and right sides of the lower load-bearing plate, and the upper extension plate is located on the upper load-bearing plate and is in a corresponding position. The upper extension plate is also provided with a connecting hole. The lower end of the connecting bolt is fixed to the lower extension plate, and the upper end is inserted into the connecting hole.
5. The prefabricated transformer foundation structure according to claim 1, characterized in that: The mounting bracket consists of a sliding part and a fixed part, and the width of the fixed part is greater than that of the sliding part. When the sliding part is slidably connected to the connecting groove, the fixed part is located above the sliding plate, and the sliding part in the other direction is located in the groove.
6. The prefabricated transformer foundation structure according to claim 1, characterized in that: The length of the groove is equal to the width of the slide plate, and its width is greater than the width of the mounting bracket, so that the tail end can be finely adjusted within the groove when the mounting bracket moves back and forth along the connecting groove.