A large transformer core turnover device
By designing an adjustable support block and an elastic connection structure for the iron core flipping device, the problem of flipping adaptability for iron cores of different specifications is solved, the versatility and flipping accuracy of the device are improved, and the safety and stability of the flipping process are ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHEAST ELECTRIC POWER DESIGN INST CO LTD OF CHINA POWER ENG CONSULTING GRP
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-14
AI Technical Summary
The existing pads of the large transformer core flipping device cannot be adjusted and cannot adapt to various core specifications, which limits the versatility and applicability of the flipping device.
A large transformer core flipping device was designed, including a movable support block and a fixing assembly. The support block is fixed by bolts and nuts, and combined with an elastic connection structure and an arc plate, it provides a precise flipping path and a stable support platform.
The adjustable support block enhances the versatility and applicability of the flipping device, strengthens its impact resistance and support stability, and ensures the safety and accuracy of the flipping process.
Smart Images
Figure CN224501672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer manufacturing technology, specifically to a large transformer core flipping device. Background Technology
[0002] In the manufacturing and maintenance of power equipment, the assembly and maintenance of large transformers is a crucial process that is technically complex, requires high-level craftsmanship, and demands strong safety standards. The core, as one of the core components of the transformer, is heavy and structurally precise. During assembly, testing, and maintenance, it often requires hoisting, transportation, and attitude adjustment. In particular, the core's flipping operation is a prerequisite for procedures such as inspecting the upper and lower end faces, insulation treatment, and winding assembly.
[0003] Currently, in actual production, the flipping operation of large transformer cores is mostly completed manually in conjunction with bridge cranes, lifting tools and auxiliary support structures. During the core flipping process, pads are needed to support the core in order to distribute the load of the large core and prevent local overload. The pads on the existing core flipping devices cannot be adjusted, and cannot be flipped for cores of various different specifications.
[0004] Therefore, existing technologies need further development. Utility Model Content
[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a large transformer core flipping device to solve the technical problem that the pads on the core flipping device in the related technology cannot be fixed and cannot be flipped for cores of various different specifications.
[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a large transformer core flipping device is provided, comprising: a frame; a support block extending along the length of the frame and movably mounted on the frame along the width of the frame; the support block is used to support the large core; and a fixing component connected to the support block, which is used to install the support block on the frame.
[0007] Further, the fixing component includes: a first bolt, a first fixing groove and a second fixing groove are provided on the support block, the first fixing groove and the second fixing groove extend along the thickness direction of the frame, the first fixing groove and the second fixing groove are spaced apart along the extension direction of the support block, the first fixing groove and the second fixing groove are located on the side of the support block away from the frame; the first bolt extends along the thickness direction of the frame, at least a portion of the first bolt is located in the first fixing groove, the first bolt is threadedly connected to the support block and passes through the frame; a first nut is located on the side of the frame away from the first bolt, the first nut is threadedly connected to the first bolt, so as to fix one end of the support block to the frame through the threaded connection between the first nut and the first bolt; a second bolt extends along the thickness direction of the frame, at least a portion of the second bolt is located in the second fixing groove, the second bolt is threadedly connected to the support block and passes through the frame; a second nut is located on the side of the frame away from the second bolt, the second nut is threadedly connected to the second bolt, so as to fix the other end of the support block to the frame through the threaded connection between the second nut and the second bolt.
[0008] Further, the fixing component includes: a first connecting rod extending along the thickness direction of the frame, the first connecting rod movably passing through the support block and the frame; two first limiting plates, the two first limiting plates being respectively installed at both ends of the first connecting rod; a first spring, the first spring being sleeved on the first connecting rod, the two ends of the first spring being connected to the first limiting plate and the support block respectively; a second connecting rod, the first connecting rod and the second connecting rod being spaced apart along the extension direction of the support block, the second connecting rod extending along the thickness direction of the frame, the second connecting rod movably passing through the support block and the frame; two second limiting plates, the two second limiting plates being respectively installed at both ends of the second connecting rod; and a second spring, the second spring being sleeved on the second connecting rod, the two ends of the second spring being connected to the second limiting plate and the support block respectively.
[0009] Furthermore, the large transformer core flipping device also includes: two arc-shaped plates, both of which extend along a preset arc, and the two arc-shaped plates are respectively installed on the frame, with the two arc-shaped plates spaced apart along the length of the frame.
[0010] Furthermore, the large transformer core turning device also includes: a support, which extends along the length of the frame, and its two ends are respectively connected to the opposite sides of two arc-shaped plates; the extension direction of the support is perpendicular to the width direction of the frame.
[0011] Furthermore, the large transformer core turning device also includes: a fixing plate, the two ends of which are connected to the support respectively, and the fixing plate is provided with grooves that extend along the width direction of the frame. There are at least two grooves, and the two grooves are spaced apart along the length direction of the frame.
[0012] Beneficial effects:
[0013] 1. The support blocks are movable on the frame, which can adapt to the width requirements of large iron cores of different specifications. This effectively solves the problem of fixed and unadjustable pad positions in the existing technology, and significantly improves the versatility and applicability of the flipping device.
[0014] 2. The elastic connection structure consisting of the first connecting rod, the first limiting plate, the first spring, the second connecting rod, the second limiting plate, and the second spring enables the support block to have limited elastic floating ability, which can absorb vibration or impact loads during the overturning process, reduce structural stress, and thus improve the impact resistance and service life of the device.
[0015] 3. The fixing plate is connected to the support, and the multiple grooves extending along the width direction on it provide a clear installation position for installing auxiliary support components or positioning structures after the iron core is flipped into place. This helps to further enhance the support stability and positioning accuracy of the iron core and facilitates subsequent operations. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a large transformer core flipping device used in an embodiment of this utility model;
[0017] Figure 2 This is a first-view structural schematic diagram of a large transformer core flipping device used in an embodiment of this utility model.
[0018] The above figures include the following reference numerals:
[0019] 1. Frame; 2. Support block; 3. Fixing component; 4. First fixing groove; 5. Second fixing groove; 6. First connecting rod; 7. First limiting plate; 8. First spring; 9. Second connecting rod; 10. Second limiting plate; 11. Second spring; 12. Arc plate; 13. Support; 14. Fixing plate; 15. Groove. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0021] According to an embodiment of this utility model, a large transformer core flipping device is provided. Please refer to [link / reference needed]. Figures 1 to 2It includes: a frame 1; and a support block 2, the support block 2 extending along the length of the frame 1 and movably mounted on the frame 1 along the width of the frame 1. Figure 1 The direction of the middle arrow A is the width direction of the frame 1; the support block 2 is used to support the large iron core; the fixing component 3 is connected to the support block 2 and is used to install the support block 2 on the frame 1.
[0022] By adopting the above technical solution, the structural design makes the support block 2 adjustable, which can adapt to the width requirements of large iron cores of different specifications. It effectively solves the problem of fixed and unadjustable pad positions in the prior art, and significantly improves the versatility and applicability of the flipping device.
[0023] Please refer to Figure 2 The fixing component 3 includes: a first bolt; a first fixing groove 4 and a second fixing groove 5 are provided on the support block 2, the first fixing groove 4 and the second fixing groove 5 extend along the thickness direction of the frame 1, the first fixing groove 4 and the second fixing groove 5 are spaced apart along the extension direction of the support block 2, and the first fixing groove 4 and the second fixing groove 5 are located on the side of the support block 2 away from the frame 1; the first bolt extends along the thickness direction of the frame 1, at least a portion of the first bolt is located in the first fixing groove 4, the first bolt is threadedly connected to the support block 2 and passes through the frame 1; and a first nut, the first nut being located on the side of the frame 1 away from the support block 2. On one side of the first bolt, the first nut is threadedly connected to the first bolt to fix one end of the support block 2 to the frame 1; the second bolt extends along the thickness direction of the frame 1, at least a portion of the second bolt is located in the second fixing groove 5, the second bolt is threadedly connected to the support block 2 and passes through the frame 1; the second nut is located on the side of the frame 1 away from the second bolt, the second nut is threadedly connected to the second bolt to fix the other end of the support block 2 to the frame 1.
[0024] By adopting the above technical solution, the support block 2 is fixed by using the first bolt, the first nut, the second bolt and the second nut in conjunction with the first fixing groove 4 and the second fixing groove 5. This provides a simple, reliable and high-strength fixing method, which effectively ensures the stability of the support block 2 when bearing load, prevents displacement during the flipping process, and ensures the safety and stability of the operation.
[0025] Please refer to Figure 1The fixing component 3 includes: a first connecting rod 6, which extends along the thickness direction of the frame 1 and is movably inserted through the support block 2 and the frame 1; two first limiting plates 7, which are respectively installed at both ends of the first connecting rod 6; a first spring 8, which is sleeved on the first connecting rod 6 and whose two ends are respectively connected to the first limiting plate 7 and the support block 2; a second connecting rod 9, which is spaced apart from the first connecting rod 6 along the extension direction of the support block 2 and extends along the thickness direction of the frame 1 and is movably inserted through the support block 2 and the frame 1; two second limiting plates 10, which are respectively installed at both ends of the second connecting rod 9; and a second spring 11, which is sleeved on the second connecting rod 9 and whose two ends are respectively connected to the second limiting plate 10 and the support block 2.
[0026] By adopting the above technical solution, the elastic connection structure composed of the first connecting rod 6, the first limiting plate 7, the first spring 8, the second connecting rod 9, the second limiting plate 10, and the second spring 11 enables the support block 2 to have limited elastic floating ability, which can absorb vibration or impact loads during the overturning process, reduce structural stress, and thus improve the impact resistance and service life of the device.
[0027] Please refer to Figure 1 The large transformer core flipping device also includes two arc plates 12, both of which extend along a preset arc. The two arc plates 12 are respectively installed on the frame 1, and the two arc plates 12 are spaced apart along the length of the frame 1.
[0028] By adopting the above technical solution, the two spaced arc plates 12 provide a precise arc-shaped guide path for the flipping movement of the large iron core, ensuring that the flipping process is smooth and controllable, effectively preventing the iron core from tilting or slipping during flipping, and improving the accuracy and safety of the flipping operation.
[0029] Please refer to Figure 1 The large transformer core flipping device also includes: a support 13, which extends along the length of the frame 1, and the two ends of the support 13 are respectively connected to the opposite sides of the two arc plates 12; the extension direction of the support 13 is perpendicular to the width direction of the frame 1.
[0030] By adopting the above technical solution, the support 13 is rigidly connected between the two arc plates 12. After the iron core is flipped, it provides a stable and reliable support platform for the iron core, ensuring that the iron core is in the required working posture, which facilitates subsequent maintenance, insulation treatment or winding assembly and other processes.
[0031] Please refer to Figure 1The large transformer core flipping device also includes: a fixing plate 14, the two ends of the fixing plate 14 are respectively connected to the support 13, the fixing plate 14 is provided with a groove 15, the groove 15 extends along the width direction of the frame 1, at least two grooves 15 are provided, and the two grooves 15 are spaced apart along the length direction of the frame 1.
[0032] By adopting the above technical solution, the fixing plate 14 is connected to the support 13, and the multiple grooves 15 extending along the width direction on it provide a clear installation position for installing auxiliary support components or positioning structures after the iron core is flipped into place, which helps to further enhance the support stability and positioning accuracy of the iron core and facilitates subsequent operations.
[0033] Working principle:
[0034] According to the specific specifications (especially the width) of the large transformer core to be flipped, the support block 2 is moved to a suitable position along the width direction of the frame 1.
[0035] Using the fixing component 3 (whether by bolt and nut locking or by spring connecting rod elastic fixing), the adjusted support block 2 is firmly fixed to the frame 1 to ensure that it can stably bear the weight of the iron core.
[0036] In the desired groove 15 on the fixed plate 14, auxiliary support components or positioning structures (such as support columns, blocks, etc.) are pre-installed or prepared to prepare for support and positioning after the iron core is flipped into place.
[0037] First, using external hoisting equipment (such as a bridge crane), the large transformer core is hoisted to the top of the tilting device.
[0038] The iron core is placed smoothly on the frame 1;
[0039] Operate the external hoisting equipment to slowly and steadily pull the iron core, causing it to roll and flip along the precise preset arc path defined by the two arc plates 12;
[0040] The support block 2 provides continuous support to the iron core and distributes the load;
[0041] If elastic fixing components (first connecting rod 6, first spring 8, second connecting rod 9, second spring 11, etc.) are used, this structure can effectively absorb vibrations or minor impacts generated during flipping, protecting the device and the iron core;
[0042] The support 13 rigidly connects two arc-shaped plates 12 to ensure a stable flipping trajectory, resist torsional force, and prevent deformation of the arc-shaped plates 12.
[0043] Continue the flipping operation until the core rotates from its initial side-standing position to the target orientation;
[0044] When the iron core is rotated into position, its center of gravity falls stably on the support 13. At this time, the support 13 serves as the main support platform, providing stable and reliable support for the iron core in its working position.
[0045] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.
[0046] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.
[0047] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0048] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0049] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A large transformer core flipping device, characterized in that, include: Frame (1); Support block (2), the support block (2) extends along the length direction of the frame (1), and the support block (2) is movably disposed on the frame (1) along the width direction of the frame (1); the support block (2) is used to support the large iron core; Fixing component (3), which is connected to the support block (2), is used to install the support block (2) on the frame (1).
2. The large transformer core flipping device according to claim 1, characterized in that, The fixing component (3) includes: The first bolt has a first fixing groove (4) and a second fixing groove (5) on the support block (2). The first fixing groove (4) and the second fixing groove (5) extend along the thickness direction of the frame (1). The first fixing groove (4) and the second fixing groove (5) are spaced apart along the extension direction of the support block (2). The first fixing groove (4) and the second fixing groove (5) are located on the side of the support block (2) away from the frame (1). The first bolt extends along the thickness direction of the frame (1). At least a portion of the first bolt is located in the first fixing groove (4). The first bolt is threaded to the support block (2) and passes through the frame (1). The first nut is located on the side of the frame (1) away from the first bolt. The first nut is threadedly connected to the first bolt to fix one end of the support block (2) to the frame (1). The second bolt extends along the thickness direction of the frame (1), at least a portion of the second bolt is located in the second fixing groove (5), the second bolt is threaded to the support block (2) and passes through the frame (1). The second nut is located on the side of the frame (1) away from the second bolt. The second nut is threaded to the second bolt to fix the other end of the support block (2) to the frame (1).
3. The large transformer core flipping device according to claim 1, characterized in that, The fixing component (3) includes: The first connecting rod (6) extends along the thickness direction of the frame (1) and is movably inserted through the support block (2) and the frame (1). Two first limiting plates (7) are respectively installed at both ends of the first connecting rod (6); The first spring (8) is sleeved on the first connecting rod (6), and the two ends of the first spring (8) are respectively connected to the first limiting plate (7) and the support block (2); The second connecting rod (9) is provided at intervals along the extension direction of the support block (2), the second connecting rod (9) extends along the thickness direction of the frame (1), and the second connecting rod (9) is movably inserted through the support block (2) and the frame (1). Two second limiting plates (10) are respectively installed at both ends of the second connecting rod (9); The second spring (11) is sleeved on the second connecting rod (9), and the two ends of the second spring (11) are respectively connected to the second limiting plate (10) and the support block (2).
4. The large transformer core flipping device according to claim 1, characterized in that, The large transformer core flipping device also includes: Two arc-shaped plates (12) are provided, both of which extend along a preset arc. The two arc-shaped plates (12) are respectively installed on the frame (1) and are spaced apart along the length of the frame (1).
5. The large transformer core flipping device according to claim 4, characterized in that, The large transformer core flipping device also includes: Support (13) extends along the length of the frame (1), and the two ends of the support (13) are respectively connected to the opposite sides of the two arc plates (12); the extension direction of the support (13) is perpendicular to the width direction of the frame (1).
6. The large transformer core flipping device according to claim 5, characterized in that, The large transformer core flipping device also includes: A fixing plate (14) is provided. Both ends of the fixing plate (14) are connected to the support (13). The fixing plate (14) is provided with a groove (15). The groove (15) extends along the width direction of the frame (1). There are at least two grooves (15). The two grooves (15) are spaced apart along the length direction of the frame (1).