A turnover device for transformer core production

Abstract

The utility model relates to transformer production equipment technical field especially a kind of turnover device for transformer core production, including workbench, further include: support frame, fixedly installed on the workbench;Driving motor, fixedly installed on the support frame top, the output shaft end of the driving motor is fixedly connected with rope shaft;Steel cable, one end is wound and connected to the rope shaft;Door-shaped frame, fixedly installed on the workbench, and located the support frame side, the top of the door-shaped frame is fixedly installed for the pulley of auxiliary steel cable take-up and pay-off;Support frame, set on the workbench, the end of the support frame close to the door-shaped frame is provided with guide component;By setting the support frame that can rotate around rotation axis, and using the driving mechanism that driving motor, rope shaft and steel cable are composed and the guide mechanism that the limiting slot on door-shaped frame and the limiting block on support frame are composed, the transformer core placed on support frame is turned over.

Description

Technical Field

[0001] This utility model relates to the field of transformer production equipment technology, and in particular to a flipping device for transformer core production. Background Technology

[0002] The transformer core is the main magnetic circuit component of a transformer, typically composed of stacked silicon steel sheets. During transformer manufacturing, the cores are usually stacked horizontally to facilitate the stacking of the silicon steel sheets. However, after stacking, the cores need to be flipped from a horizontal to a vertical position for subsequent winding and assembly processes. Existing transformer core flipping devices typically involve hoisting the core onto the device, placing the core's base against the device's support plate, and then rotating the flipping table to flip the core.

[0003] This flipping method has some drawbacks. First, the process of precisely hoisting and aligning large, heavy-duty transformer cores with the support plate is cumbersome and requires significant manpower and time. Second, directly flipping the entire core using a rotating platform is particularly problematic for large transformer cores. Due to their weight and significant shift in center of gravity, the flipping device requires extremely high driving torque, which not only places high demands on equipment design and manufacturing, increasing costs, but also limits the application of existing flipping devices in the production of large transformer cores. Therefore, providing a flipping device that is relatively easy to operate, requires less driving torque, and is suitable for large transformer cores is a pressing issue in the current transformer production equipment field.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flipping device for transformer core production.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a flipping device for transformer core production, comprising a workbench, and further comprising: The support frame is fixedly installed on the workbench; A drive motor is fixedly installed on the top of the support frame, and a rope shaft is fixedly connected to the end of the output shaft of the drive motor. A steel cable, one end of which is wound and connected to the rope axle; A U-shaped frame is fixedly installed on the workbench and located on one side of the support frame. A pulley for assisting in the winding and unwinding of the steel cable is fixedly installed on the top of the U-shaped frame. A support frame is provided on the workbench. A guide component is provided at one end of the support frame near the U-shaped frame. The guide component is used to guide the end of the support frame to move vertically along the direction of the U-shaped frame. The other end of the steel cable is connected to the end of the support frame near the U-shaped frame. The base plate is fixedly installed on the support frame and located at the end of the support frame away from the U-shaped frame, and is used to support the transformer core when the support frame is rotated to the vertical position.

[0007] When using the flipping device of this invention, the horizontally positioned transformer core is first placed on the support frame. Then, the drive motor is started, causing the rope shaft to rotate. The steel cable is wound around the rope shaft, pulling the end of the support frame closest to the U-shaped frame upwards. During this movement, the guiding components on the support frame slide vertically under the guidance of the U-shaped frame, thus guiding the movement trajectory of that end of the support frame and gradually flipping the transformer core from a horizontal position. During the flipping process, the end of the support frame away from the U-shaped frame slides or rolls on the worktable (e.g., via rollers) to reduce movement resistance. As the steel cable tightens, the support frame continues to rotate until the transformer core reaches a vertical position and rests against the base plate on the support frame. At this point, the transformer core is supported by both the support frame and the base plate, completing the flipping process. Throughout the process, the drive motor only needs to provide the power required to overcome the tension of the steel cable, friction, and part of the gravitational torque, which is far less than the torque required to directly rotate the entire core, thus achieving labor-saving and efficient flipping of large transformer cores. The support frame provides a stable mounting base for the drive motor and the rope shaft. The U-shaped frame provides precise guidance for the guiding components, ensuring the accuracy of the flipping trajectory. The base plate provides reliable support for the vertically positioned iron core after flipping.

[0008] Furthermore, the support frame has a roller at the bottom of the end furthest from the U-shaped frame.

[0009] Furthermore, the workbench is equipped with a groove that mates with the roller.

[0010] Furthermore, the guiding component includes a limiting groove, which is formed on the inner wall of the U-shaped frame. The limiting groove has symmetrical vertical sliding connection of limiting blocks inside. Each limiting block has a rotating shaft fixedly connected to its side wall, and the two rotating shafts are respectively rotatably connected to the two sides of the support frame.

[0011] Furthermore, the limiting groove is a vertically arranged groove.

[0012] Furthermore, the base plate is symmetrically equipped with reinforcing ribs.

[0013] Furthermore, the support frame is a gantry structure.

[0014] Furthermore, the door-shaped frame is a frame structure composed of profiles.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting up a support frame that can rotate around a pivot, and utilizing a drive mechanism consisting of a drive motor, a rope shaft, and a steel cable, as well as a guide mechanism consisting of a limiting groove on the portal frame and a limiting block on the support frame, the transformer core placed on the support frame can be flipped. This technical solution utilizes the lever principle; the drive mechanism pulls one end of the support frame upwards, causing the support frame to rotate around the pivot, thereby flipping the core. Simultaneously, the guide mechanism ensures that the end of the support frame closest to the portal frame moves precisely vertically during the flipping process, guiding the flipping trajectory. This structural design makes the driving torque required for the flipping process much smaller than the torque required to directly rotate the entire core, effectively solving the problem of excessive torque requirements in existing flipping devices when flipping large transformer cores.

[0016] Furthermore, the iron core can be directly hoisted onto the support frame on the workbench for flipping, making the operation relatively simple. Unlike existing technologies, it does not require precise alignment of the flipping table's support plate, reducing operational difficulty and time costs. Therefore, the flipping device of this utility model has the advantages of requiring low driving torque, being easy to operate, and being suitable for flipping large transformer iron cores, thus improving the efficiency of transformer iron core production and the applicability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a flipping device used in the production of transformer cores.

[0018] Figure 2 This is a partial structural diagram of a flipping device used in the production of transformer cores.

[0019] Figure 3 This is a cross-sectional schematic diagram of a flipping device used in the production of transformer cores.

[0020] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Workbench; 2. Drive motor; 3. Rope shaft; 4. Steel cable; 5. Support frame; 6. Roller; 7. Base plate; 8. Rotating shaft; 9. Limiting block; 10. Reinforcing rib; 11. Pulley; 12. Support frame; 13. U-shaped frame; 14. Limiting groove. Detailed Implementation

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0023] In the field of transformer manufacturing, core production is a crucial step. Traditionally, to facilitate the stacking of silicon steel sheets, cores are typically stacked horizontally. However, subsequent winding and assembly processes often require the core to be in a vertical position. Therefore, how to efficiently and safely flip large transformer cores from a horizontal to a vertical position is a problem that must be solved in transformer production. Existing flipping devices typically use direct rotation of the entire core. For large, heavy-load cores, this method requires overcoming enormous gravitational torque, resulting in extremely high driving torque for the equipment. This not only leads to high manufacturing costs but also complex operation, making it difficult to widely apply to the production of large transformer cores. To overcome the shortcomings of existing technologies, this invention proposes a flipping device for transformer core production. Through ingenious structural design, utilizing lever principles and a guiding mechanism, this device significantly reduces the driving torque required for flipping, simplifies the operation process, and improves flipping efficiency and equipment applicability.

[0024] like Figures 1 to 4 The shown is a flipping device for transformer core production, including a workbench 1, and further comprising: Support frame 12 is fixedly installed on workbench 1; The drive motor 2 is fixedly installed on the top of the support frame 12, and the output shaft of the drive motor 2 is fixedly connected to the rope shaft 3. Steel cable 4, one end of which is wound and connected to rope shaft 3; A U-shaped frame 13 is fixedly installed on the workbench 1 and located on one side of the support frame 12. A pulley 11 for assisting in the winding and unwinding of the steel cable 4 is fixedly installed on the top of the U-shaped frame 13. A support frame 5 is set on the workbench 1. A guide component is provided at one end of the support frame 5 near the U-shaped frame 13. The guide component is used to guide the end of the support frame 5 to move vertically along the direction of the U-shaped frame 13. The other end of the steel cable 4 is connected to the end of the support frame 5 near the U-shaped frame 13. The base plate 7 is fixedly installed on the support frame 5 and is located at the end of the support frame 5 away from the U-shaped frame 13. It is used to support the transformer core when the support frame 5 is rotated to the vertical position.

[0025] When using the flipping device of this invention, the transformer core, which is in a horizontal position, is first placed on the support frame 5. Then, the drive motor 2 is started, which drives the rope shaft 3 to rotate. The steel cable 4 is wound around the rope shaft 3, thereby pulling the end of the support frame 5 closest to the U-shaped frame 13 upwards. During this movement, the guiding component on the support frame 5 slides vertically under the guidance of the U-shaped frame 13, thus guiding the movement trajectory of that end of the support frame 5 and causing the transformer core on it to gradually flip from a horizontal position. During the flipping process, the end of the support frame 5 away from the U-shaped frame 13 slides or rolls on the worktable 1 (e.g., via rollers 6) to reduce movement resistance. As the steel cable 4 is continuously tightened, the support frame 5 continues to rotate until the transformer core reaches a vertical position and rests against the base plate 7 on the support frame 5. At this point, the transformer core is supported by both the support frame 5 and the base plate 7, completing the flipping process. Throughout the process, the drive motor 2 only needs to provide the power required to overcome the tension, friction, and part of the gravitational torque of the steel cable 4, which is far less than the torque required to directly rotate the entire core, thus achieving a labor-saving and efficient flipping of the large transformer core. The support frame 12 provides a stable mounting base for the drive motor 2 and the rope shaft 3. The portal frame 13 provides precise guidance for the guiding components, ensuring the accuracy of the flipping trajectory. After flipping, the base plate 7 provides reliable support for the vertically positioned core.

[0026] As one embodiment of this utility model, a roller 6 is provided at the bottom of the end of the support frame 5 away from the U-shaped frame 13, and a sliding groove that cooperates with the roller 6 is provided on the workbench 1.

[0027] In practice, the chute provides a predetermined, constrained path for the movement of the roller 6 on the worktable 1. Specifically, when the support frame 5 is flipped by the drive mechanism, the end of it furthest from the U-shaped frame 13 moves on the worktable 1 via the roller 6. The chute restricts the lateral movement of the roller 6, ensuring that the roller 6 can only roll along the direction of the chute. Thus, this end of the support frame 5 is precisely guided to move along the direction of the chute, avoiding lateral offset or irregular movement that may occur during the flipping process.

[0028] As one embodiment of this utility model, the guiding component includes a limiting groove 14, which is opened on the inner wall of the U-shaped frame 13. The limiting groove 14 is symmetrically and vertically slidably connected to the limiting blocks 9. Each limiting block 9 has a rotating shaft 8 fixedly connected to its side wall. The two rotating shafts 8 are rotatably connected to the two sides of the support frame 5 respectively. The limiting groove 14 is a vertically arranged groove.

[0029] In implementation, the guide component provides precise guidance and rotational support for the movement of the support frame 5 near the U-shaped frame 13. The cooperation of the limiting groove 14 and the limiting block 9 ensures that the rotating shaft 8 can only move vertically along the direction of the limiting groove 14, thereby guiding the vertical movement trajectory of that end of the support frame 5. The rotating shaft 8 serves as the rotation axis of the support frame 5, allowing the support frame 5 to rotate around this axis. This structure decomposes the complex flipping motion of the support frame 5 into vertical movement at one end and rotation around the rotating shaft 8. By precisely controlling the vertical position of the rotating shaft 8, the flipping angle of the support frame 5 can be precisely controlled.

[0030] Compared to a general description of the guiding components, this paper explicitly defines the guiding components as consisting of a limiting groove 14, a limiting block 9, and a rotating shaft 8, and details their connection relationships and movement methods, providing a specific technical solution for achieving precise flipping control. This structural design is simple and reliable. The limiting groove 14 provides rigid constraints on the movement of the limiting block 9, ensuring the stability and accuracy of the guiding process. This precise guidance is crucial for the flipping of large transformer cores, effectively preventing swaying or deviation from the predetermined trajectory during the flipping process, thus improving equipment safety and flipping quality.

[0031] As one embodiment of this utility model, the base plate 7 is symmetrically provided with reinforcing ribs 10.

[0032] In practice, the addition of the reinforcing ribs 10 significantly enhances the structural strength and rigidity of the base plate 7. After the support frame 5 is rotated to a vertical position, the base plate 7 needs to bear all or part of the weight of the transformer core. Large transformer cores are extremely heavy; without sufficient strength, the base plate 7 may bend and deform, affecting its stable support of the core and even causing structural damage. By symmetrically placing the reinforcing ribs 10 on the base plate 7, the load borne by the base plate 7 can be distributed more evenly, effectively resisting bending and shear stresses and improving the load-bearing capacity of the base plate 7. The symmetrically placed reinforcing ribs 10 help maintain uniform stress distribution on the base plate 7 and avoid localized stress concentration.

[0033] As one embodiment of this utility model, the support frame 12 is a gantry structure.

[0034] In practice, the support frame 12 adopts a gantry structure, which has high structural stability and load-bearing capacity. Through its frame form, the gantry structure can effectively resist loads from all directions, including the reaction force generated by the drive motor 2 during operation and the tension of the steel cable 4. Its wide span and stable column foundation make the entire support frame 12 less prone to swaying or deformation, providing a solid and reliable support platform for the drive mechanism.

[0035] As one embodiment of this utility model, the door-shaped frame 13 is a frame structure composed of profiles.

[0036] In practice, the U-shaped frame 13 adopts a frame structure composed of profiles, which has high structural strength, rigidity and stability. The profiles themselves have excellent mechanical properties, and by combining them into a frame structure, they can effectively resist the lateral forces and vertical loads generated during the flipping process, ensuring that the U-shaped frame 13 is not easily deformed.

[0037] Working principle of this utility model: When using this type of iron core flipping device, after the iron cores are stacked and clamped and fixed, the iron core clamps are lifted horizontally onto the workbench 1 using a crane. Then, the user controls the drive motor 2 fixedly installed on the top of the support frame 12 to run. The output shaft of the drive motor 2 drives the rope shaft 3 to rotate. When the rope shaft 3 rotates, the steel cable 4 is wound around the rope shaft 3. The steel cable 4 will pull the end of the support frame 5 near the U-shaped frame 13 to slide upward. With the cooperation of the rotating shaft 8, the limiting block 9, and the limiting groove 14, since the limiting block 9 can only slide up and down in the limiting groove 14, the end of the support frame 5 near the U-shaped frame 13 will move vertically upward. The support frame 5 will rotate around the rotating shaft 8 as the axis, driving the iron core on the workbench 1 to rotate to a vertical position. The end of the support frame 5 away from the U-shaped frame 13 cooperates with the roller 6 to slide in the groove, reducing the resistance when the support frame 5 moves, and also driving the iron core to move towards the U-shaped frame 13. As the support frame 5 drives the iron core to rotate, the iron core gradually rotates to a vertical state and slides towards the base plate 7 until it abuts against the base plate 7. At this time, the base plate 7 and the support frame 5 support the iron core simultaneously until the support frame 5 and the iron core rotate to a near-vertical state. During the flipping process, the hook connected to the crane needs to be removed from the lifting lug on the bottom clamp of the iron core, and the hook needs to be fixed to the lifting lug on the top of the iron core. The crane assists in flipping the iron core, preventing the iron core from tilting away from the support frame due to inertia after it is flipped to a vertical position, and making it easier to lift the iron core to other positions after it is flipped to a vertical position.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A turnover device for transformer core production, comprising a worktable (1), characterized in that, Also includes: The support frame (12) is fixedly installed on the workbench (1); A drive motor (2) is fixedly installed on the top of the support frame (12), and a rope shaft (3) is fixedly connected to the end of the output shaft of the drive motor (2). Steel cable (4), one end of which is wound and connected to the rope shaft (3); A portal frame (13) is fixedly installed on the workbench (1) and located on one side of the support frame (12). A pulley (11) for assisting in the winding and unwinding of the steel cable (4) is fixedly installed on the top of the portal frame (13). A support frame (5) is set on the workbench (1). A guide component is provided at one end of the support frame (5) near the gate-shaped frame (13). The guide component is used to guide the end of the support frame (5) to move vertically along the direction of the gate-shaped frame (13). The other end of the steel cable (4) is connected to the end of the support frame (5) near the gate-shaped frame (13). The base plate (7) is fixedly installed on the support frame (5) and located at the end of the support frame (5) away from the gate-shaped frame (13), and is used to support the transformer core when the support frame (5) is rotated to the vertical state.

2. The turnover device for transformer core production according to claim 1, characterized in that, The bottom of the support frame (5) away from the gate-shaped frame (13) is provided with a roller (6).

3. The flipping device for transformer core production according to claim 2, characterized in that, The workbench (1) is provided with a groove that cooperates with the roller (6).

4. The flipping device for transformer core production according to claim 1, characterized in that, The guiding component includes a limiting groove (14), which is opened on the inner wall of the door-shaped frame (13). The limiting groove (14) is symmetrically and vertically connected to limiting blocks (9). Each limiting block (9) has a rotating shaft (8) fixedly connected to its side wall. The two rotating shafts (8) are respectively rotatably connected to the two sides of the support frame (5).

5. The flipping device for transformer core production according to claim 4, characterized in that, The limiting groove (14) is a vertically arranged groove.

6. The flipping device for transformer core production according to claim 1, characterized in that, The base plate (7) is symmetrically provided with reinforcing ribs (10).

7. The flipping device for transformer core production according to claim 1, characterized in that, The support frame (12) is a gantry structure.

8. The flipping device for transformer core production according to claim 1, characterized in that, The gate-shaped frame (13) is a frame structure composed of profiles.

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