Power transformer iron core tightening device

Abstract

The utility model discloses a power transformer iron core clamping device which comprises a base, fixing plates are fixedly connected to the two sides of the top of the base, a supporting plate is fixedly connected between the fixing plates on the two sides, an inner rod is rotationally connected to the interior of the supporting plate, and meanwhile a rotating plate is fixedly connected to the outer side wall of the inner rod. The two ends of the rotating plate are rotationally connected with connecting rods, and the other ends of the connecting rods on the two sides are fixedly and rotationally connected with bottom plates. In the actual use process, the electric push rod is started, and the bottom plate is pushed to move front and back under the action of the electric push rod, so that the bottom plate drives the connecting rod and the rotating plate at the other end to rotate, the connecting rod at the other side drives the bottom plate at the other side to move reversely, and the clamping plates on the bottom plates at the two sides move reversely; therefore, the effect that the clamping plates on the two sides clamp and fix the iron core is achieved, the problem that a traditional fixing device cannot clamp iron cores of different sizes is solved, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a core tightening device for a power transformer. Background Art

[0002] The core clamping device of a power transformer generally refers to a mechanical device used in a power transformer. Its function is to tighten the core of the transformer through an adjustment device during the operation of the transformer to ensure the stability and tightness of the core, so as to improve the efficiency and performance of the transformer. This device usually includes a set of components such as bolts, nuts and adjustment rods. By adjusting the position and strength of these components, the core can be tightened and adjusted. Doing so can reduce the vibration and noise of the core during operation, extend the service life of the transformer, and improve the reliability of the power system;

[0003] After searching, a Chinese patent with the announcement number of CN209232555U discloses a core clamping device for a power transformer. The patent records that by measuring the spacing between the cores, the gap between the positioning plates is adjusted according to the spacing, the gap distance is locked by using a clamp and a locking rod, and a connecting piece connects the two clamps and determines the distance between the two clamps. During the installation process, it is only necessary to insert the locking rod to connect and lock the positioning plate, the clamp and the core. The operation is simple and fast. Compared with the original clamping device, the locking rod is smaller in size and lighter in weight. The structure can be assembled in a single manner, and can be operated by one person, requiring less personnel.

[0004] In this solution, when the staff tightens and fixes the core, it is necessary to measure the distance between the cores in advance. The tightening process is time-consuming and laborious. Then, when tightening different cores, it is necessary to repeatedly measure the data, thereby wasting time and greatly reducing work efficiency. In order to solve this technical problem, the utility model proposes a power transformer core tightening device. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In this solution, when the staff tightens and fixes the core, it is necessary to measure the distance between the cores in advance. The tightening process is time-consuming and laborious. Then, when tightening different cores, it is necessary to repeatedly measure the data, thereby wasting time and greatly reducing work efficiency. In order to solve this technical problem, the utility model proposes a power transformer core tightening device.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a core tightening device for a power transformer, comprising a base, fixed plates are fixedly connected to both sides of the top of the base, a support plate is fixedly connected between the fixed plates on both sides, an inner rod is rotatably connected inside the support plate, and a rotating plate is fixedly connected to the outer wall of the inner rod, both ends of the rotating plate are rotatably connected to connecting rods, the other ends of the connecting rods on both sides are fixedly rotatably connected to the bottom plate, the tops of the fixed plates on both sides are fixedly connected to electric push rods, and the bottom plates on both sides are fixedly connected to the output ends of the electric push rods on both sides, several groups of sliders are fixedly connected to the bottom of the bottom plate, a pair of connecting plates are fixedly connected to the top of the base, slide grooves are opened on both sides of the connecting plate, and the slide grooves correspond to the sliders, and the sliders are slidably connected to the inside of the slide grooves, and clamps are fixedly connected to the tops of the bottom plates on both sides.

[0009] Preferably, the four corners of the base are all provided with adjustment slots, and the four corners of the base are also provided with screws, and the screws are slidably connected in the adjustment slots.

[0010] Preferably, an inner cavity is provided inside the splint.

[0011] Preferably, the outer side wall of the splint is fixedly connected with several groups of fixing blocks, the fixing blocks are rotatably connected with threaded rods inside, and the outer side wall of the threaded rod is threadedly connected with a connecting block 1.

[0012] Preferably, the connecting block 1 penetrates through the splint and extends to the inside of the splint, and the outer side wall of the connecting block 1 is fixedly connected with a pressing plate, the pressing plate corresponds to the inner cavity, and the pressing plate is slidably connected in the inner cavity.

[0013] Preferably, a pair of connecting blocks 2 are fixedly connected to the outer wall of the pressure plate, and the connecting block 2 passes through the splint and extends to the outside of the splint. A positioning rod is slidably connected inside the connecting block 2, and the positioning rod is fixedly connected between the fixed blocks on the other side.

[0014] (III) Beneficial effects

[0015] The utility model provides a core tightening device for a power transformer, which has the following beneficial effects:

[0016] (1) By starting the electric push rod, the bottom plate is pushed forward and backward under the action of the electric push rod, so that the bottom plate will drive the connecting rod and the rotating plate at the other end to rotate, thereby driving the bottom plate on the other side to move in the opposite direction through the connecting rod on the other side, and the clamping plates on the bottom plates on both sides will move in the opposite direction, thereby achieving the effect of clamping the iron core with the clamping plates on both sides, solving the problem that the traditional fixing device cannot clamp iron cores of different sizes, thereby improving work efficiency.

[0017] (2) By rotating the threaded rod, the connection block is adjusted up and down, thereby driving the pressure plate inside the clamping plate to move up and down, achieving the effect of extended clamping and preventing the clamping plate from being loosely clamped when encountering a higher iron core. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the bottom plate of the utility model;

[0021] Figure 4 This is a schematic diagram of the external structure of the splint of the utility model.

[0022] In the figure: 1. base; 2. adjustment slot; 3. screw; 4. fixing plate; 5. electric push rod; 6. bottom plate; 7. connecting rod; 8. rotating plate; 9. inner rod; 10. support plate; 11. clamping plate; 12. slider; 13. connecting plate; 14. slide groove; 15. inner cavity; 16. fixing block; 17. threaded rod; 18. connecting block 1; 19. positioning rod; 20. connecting block 2; 21. pressure plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] Embodiment 1: A core clamping device for a power transformer comprises a base 1, wherein the base 1 is provided with adjustment slots 2 at four corners, and screws 3 are provided at four corners of the base 1, and the screws 3 are slidably connected in the adjustment slots 2. Fixed plates 4 are fixedly connected on both sides of the top of the base 1, and a support plate 10 is fixedly connected between the fixed plates 4 on both sides. An inner rod 9 is rotatably connected inside the support plate 10, and a rotating plate 8 is fixedly connected to the outer wall of the inner rod 9. Both ends of the rotating plate 8 are rotatably connected to connecting rods 7, and the other ends of the connecting rods 7 on both sides are fixedly rotatably connected to bottom plates 6, and electric push rods 5 are fixedly connected to the tops of the fixed plates 4 on both sides, and the bottom plates 6 on both sides are fixedly connected to the output ends of the electric push rods 5 on both sides, and several groups of sliders 12 are fixedly connected to the bottom of the bottom plate 6, and a pair of connecting plates 13 are fixedly connected to the top of the base 1, and slide grooves 14 are provided on both sides of the connecting plate 13, and the slide grooves 14 correspond to the sliders 12, and the sliders 12 are slidably connected inside the slide grooves 14, and clamping plates 11 are fixedly connected to the tops of the bottom plates 6 on both sides.

[0026] Align the four adjustment slots 2 on the base 1 with the mounting holes on the voltage regulator, and use screws 3 to fix the base 1 to the voltage regulator. Next, place the iron core between the two side clamps 11, and then start the electric push rod 5. Under the action of the electric push rod 5, the bottom plate 6 is restricted in direction by the connecting plate 13 through the slider 12 at the bottom during the forward and backward movement, ensuring the accuracy of the moving path. When the bottom plate 6 moves forward and backward, it will pull the connecting rod 7 to rotate, causing the rotating plate 8 at the other end to rotate as well. The action of the rotating plate 8 in turn drives the bottom plate 6 on the connecting rod 7 on the other side to move synchronously, so that the bottom plates 6 on both sides move in opposite directions. In this way, the bottom plate 6 drives the clamp 11 to move and begins to clamp and fix the iron core. This combination enables the equipment to quickly clamp and fix iron cores of different widths, thereby improving work efficiency.

[0027] Embodiment 2: The difference between this embodiment and embodiment 1 lies in that, several groups of fixed blocks 16 are fixedly connected to the outer wall of the splint 11, a threaded rod 17 is rotatably connected inside the fixed block 16, a connecting block 18 is threadedly connected to the outer wall of the threaded rod 17, the connecting block 18 penetrates the splint 11 and extends to the inside of the splint 11, and a pressure plate 21 is fixedly connected to the outer wall of the connecting block 18, an inner cavity 15 is opened inside the splint 11, the pressure plate 21 corresponds to the inner cavity 15, and the pressure plate 21 is slidably connected in the inner cavity 15, a pair of connecting blocks 20 are fixedly connected to the outer wall of the pressing plate 21, and the connecting block 20 penetrates the splint 11 and extends to the outside of the splint 11, and a positioning rod 19 is slidably connected inside the connecting block 20, and the positioning rod 19 is fixedly connected between the fixed blocks 16 on the other side.

[0028] When it is necessary to fix the cores at different heights, the threaded rod 17 is rotated, and the rotation of the threaded rod 17 drives the connection block 18 to adjust up and down. The adjustment of the connection block 18 causes the pressing plate 21 to move up and down, and at the same time, the pressing plate 21 is constrained by the limit positioning rod 19 on the connection block 20, ensuring the moving direction of the pressing plate 21. This coordination improves the working efficiency of the equipment.

[0029] When working, first align the adjustment slots 2 at the four corners of the base 1 with the mounting holes on the voltage device, and then tighten the screws 3 to install the base 1 on the voltage device. At this time, place the iron core between the clamping plates 11 on both sides, and then start the electric push rod 5. Under the action of the electric push rod 5, the bottom plate 6 is pushed to move forward and backward, and the bottom plate 6 is limited on the connecting plate 13 through the slider 12 at the bottom, so as to determine the moving direction. When the bottom plate 6 moves forward and backward, it will pull the connecting rod 7 to rotate. At this time, the rotation of the connecting rod 7 drives the rotating plate 8 on the other end to rotate. At this time, the rotation of the rotating plate 8 will drive the bottom plate 6 on the connecting rod 7 on the other side to move, so The bottom plates 6 on both sides realize reverse movement, at which time the bottom plates 6 will drive the clamping plates 11 to move and start to clamp and fix the iron core. Through the cooperation between them, the effect of quickly fixing the iron cores of different widths is achieved, which improves the work efficiency. When fixing the iron cores of different heights, the threaded rod 17 is rotated, and the connection block 18 is driven up and down by the rotation of the threaded rod 17. The adjustment of the connection block 18 will drive the pressure plate 21 up and down. At the same time, the pressure plate 21 is limited on the positioning rod 19 through the connection block 20, so as to determine the moving direction of the pressure plate 21. With the cooperation between them, the work efficiency is improved.

[0030] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A core tightening device for a power transformer, characterized in that: The invention comprises a base (1), wherein both sides of the top of the base (1) are fixedly connected with fixed plates (4), a support plate (10) is fixedly connected between the fixed plates (4) on both sides, an inner rod (9) is rotatably connected inside the support plate (10), and a rotating plate (8) is fixedly connected to the outer wall of the inner rod (9), both ends of the rotating plate (8) are rotatably connected with connecting rods (7), the other ends of the connecting rods (7) on both sides are fixedly rotatably connected with the bottom plate (6), and the tops of the fixed plates (4) on both sides are fixedly connected with electric push rods (5), and the bottom plates (6) on both sides are fixedly connected to the output ends of the electric push rods (5) on both sides, the bottom of the bottom plate (6) is fixedly connected with several groups of sliders (12), the top of the base (1) is fixedly connected with a pair of connecting plates (13), both sides of the connecting plates (13) are provided with sliding grooves (14), and the sliding grooves (14) correspond to the sliders (12), and the sliders (12) are slidably connected inside the sliding grooves (14), and the tops of the bottom plates (6) on both sides are fixedly connected with clamping plates (11).

2. The core clamping device for a power transformer according to claim 1, characterized in that: The base (1) is provided with adjustment slots (2) at four corners, and screws (3) are provided at four corners of the base (1), and the screws (3) are slidably connected in the adjustment slots (2).

3. The core tightening device of a power transformer according to claim 1, characterized in that: An inner cavity (15) is provided inside the clamping plate (11).

4. The core tightening device of a power transformer according to claim 3, characterized in that: The outer wall of the clamping plate (11) is fixedly connected with several groups of fixing blocks (16), the fixing blocks (16) are rotatably connected with threaded rods (17) inside, and the outer wall of the threaded rod (17) is threadedly connected with a connecting block 1 (18).

5. The core tightening device of a power transformer according to claim 4, characterized in that: The connecting block 1 (18) passes through the splint (11) and extends to the interior of the splint (11), and the outer wall of the connecting block 1 (18) is fixedly connected with a pressing plate (21), the pressing plate (21) corresponds to the inner cavity (15), and the pressing plate (21) is slidably connected in the inner cavity (15).

6. The core tightening device of a power transformer according to claim 5, characterized in that: The outer wall of the pressure plate (21) is fixedly connected with a pair of connecting blocks (20), and the connecting blocks (20) penetrate the clamping plate (11) and extend to the outside of the clamping plate (11). The connecting blocks (20) are slidably connected with positioning rods (19) inside, and the positioning rods (19) are fixedly connected between the fixing blocks (16) on the other side.

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