Pressing structure of transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a pressing structure of a transformer, which comprises a bottom column seat, an iron core column is arranged in the middle of the bottom column seat, a winding coil is arranged outside the iron core column, a pressing structure is arranged on the upper portion of the winding coil, and the pressing structure comprises a supporting assembly and a pressing assembly. According to the pressing structure of the transformer, the upper end of the winding coil is pressed through the pressing assembly, the right side of the pressing assembly is conveniently unlocked and opened through the quick locking assembly, the pressing assembly is connected with the rotating rod, and the rotating rod is rotationally connected to the interiors of the multiple ring sleeves on the left side, so that the pressing assembly can be rotationally opened around the rotating rod, and the upper portion of the winding coil is opened; the winding coil can be overhauled and replaced conveniently, operation is convenient, meanwhile, after maintenance, the pressing assembly can be rapidly reset and locked, and rapid pressing operation on the winding coil is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a compression structure of a transformer. Background Art

[0002] Dry-type transformers are mainly composed of an iron core made of silicon steel sheets and a coil cast with epoxy resin. An insulating cylinder is placed between the high and low voltage coils to increase electrical insulation, and the coils are supported and constrained by pads. Dry-type transformers are suitable for intermittent overload operation or emergency overload operation. During the use of dry-type transformers, if the coil becomes loose, the working voltage of the dry-type transformer will change, which has a greater impact.

[0003] According to the "Transformer with a new insulation compression structure" proposed in CN212570670U, the transformer includes a transformer body, which includes a crimping assembly, an iron core and a winding coil. The crimping assembly includes two upper and lower groups of crimping beams and a cylindrical connecting rod for connecting the crimping beams. Each group of crimping beams is a channel steel structure with openings facing each other. A pair of pressing plates are respectively arranged at both ends of the opposite side of the inside of the crimping beam. The base plate end and the wing plate of the crimping beam are correspondingly provided with penetration holes for inserting the connecting rod. Two upper and lower groups of relatively arranged compression pad block assemblies are embedded between the crimping beam and the winding coil. This device greatly improves the versatility of the insulating block and effectively reduces the module investment cost and inventory cost.

[0004] Although the above device improves the versatility of the insulating block and effectively reduces the module investment cost and inventory cost, the crimping beam of the crimping assembly of the device is connected by a number of connecting rods and bolts, which makes the clamping operation troublesome, easy to disassemble and assemble, and inconvenient to detect and repair the internal winding coil.

[0005] Therefore, we propose a transformer compression structure to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a transformer clamping structure, which can unlock and lock the clamping assembly by controlling the position of the slide bar. Through this new clamping structure, the winding coil can be easily and quickly inspected and replaced, which improves the convenience and efficiency of operation.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A transformer compression structure comprises a bottom column seat, an iron core column is installed in the middle of the bottom column seat, a winding coil is arranged outside the iron core column, a compression mechanism is arranged on the upper part of the winding coil, and the compression mechanism comprises a supporting assembly and a compression assembly;

[0009] The support assembly includes multiple support rods, and the multiple support rods are symmetrically distributed on both sides of the base column seat. The lower ends of the support rods are rotatably connected to threaded sleeves, and the lower ends of the threaded sleeves are internally threadedly connected to threaded rods, and the lower ends of the threaded rods are fixedly connected to the upper surface of the base column seat. The upper ends of each of the support rods are fixedly connected to a ring, and the inside of the rings is rotatably connected to a rotating rod, and the rotating rod passes through the insides of multiple rings on the left side. The inner side of the rotating rod is fixedly connected to one side of the clamping assembly, and a quick lock assembly is arranged between the other side of the clamping assembly and the ring on the right side.

[0010] Preferably, the clamping assembly includes a top plate, two electric push rods are installed inside the top plate, a pressure plate is installed at the lower end of the electric push rod, a pressure plate is arranged below the pressure plate, and two handles are fixedly connected to the outer side of the top plate.

[0011] Preferably, the pressing plate is sleeved on the outside of the core column, and the pressing plate is attached to the top of the winding coil.

[0012] Preferably, a positioning block is fixedly connected to the upper portion of the pressure plate, and the positioning block can be engaged with the inner portion of the lower end of the pressure plate.

[0013] Preferably, a locking ring is fixedly connected to the right side of the top plate, and the inner diameter of the locking ring is the same as that of the sleeve ring.

[0014] Preferably, the quick lock assembly includes a sliding rod, the sliding rod is slidably connected to the outside of the right sleeve ring, and a pin rod is fixedly connected to the inner side of the sliding rod.

[0015] Preferably, the front end of the slide rod is fixedly connected to a limit plate, and the inner side of the limit plate is fixedly connected to a return spring.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model compresses the upper end of the winding coil through the clamping assembly, and conveniently unlocks and opens the right side of the clamping assembly through the quick lock assembly. The clamping assembly is connected to the rotating rod, and the rotating rod is rotatably connected to the inside of multiple rings on the left side, so that the clamping assembly can be opened by rotating around the rotating rod, and the upper part of the winding coil is opened, which is convenient for inspection and replacement of the winding coil and easy to operate. At the same time, after maintenance, the clamping assembly can be quickly reset and locked, which is convenient for rapid clamping operation of the winding coil.

[0018] Second, the utility model pushes the two pressure plates down through two electric push rods, and the bottom of the descending pressure plate engages with the positioning block on the upper part of the pressure plate, and the two pressure plates engage the two positioning blocks at the same time, thereby positioning the pressure plate, making it stable and pressed down to prevent it from sliding. The clamping operation of the present structure is convenient and fast, and easy to adjust. A threaded rod is connected through the internal thread of the lower end of the threaded sleeve, and the lower end of the threaded rod is fixedly connected to the upper surface of the bottom column seat, so as to facilitate the disassembly and assembly of the support rod. By pushing the front end of the sliding rod, the reset spring is compressed and the pin rod is withdrawn from the right-side collar and the locking ring, thereby unlocking the right side of the clamping assembly and can be rotated to open. When the clamping assembly is rotated to a horizontal position above the winding coil, the sliding rod is released, and the pin rod is pushed by the reset spring to drive the sliding rod to insert into the right-side collar and the locking ring, thereby locking the right side of the clamping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model in a compressed state;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model in an open state;

[0021] Figure 3 This is a schematic diagram of the support rod structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the quick lock assembly of the utility model.

[0023] Among them: 1. bottom column seat; 2. core column; 3. winding coil; 4. support rod; 5. threaded sleeve; 6. threaded rod; 7. collar; 8. rotating rod; 9. top plate; 10. electric push rod; 11. pressure plate; 12. pressure plate; 13. handle; 14. positioning block; 15. locking ring; 16. sliding rod; 17. pin rod; 18. limit plate; 19. reset spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] A transformer compression structure comprises a bottom column seat 1, an iron core column 2 is installed in the middle of the bottom column seat 1, a winding coil 3 is arranged outside the iron core column 2, a compression mechanism is arranged on the upper part of the winding coil 3, and the compression mechanism comprises a supporting component and a compression component;

[0028] The support assembly includes multiple support rods 4, and the multiple support rods 4 are symmetrically distributed on both sides of the bottom column seat 1. The lower end of the support rod 4 is rotatably connected to a threaded sleeve 5, and the lower end of the threaded sleeve 5 is internally threadedly connected to a threaded rod 6, and the lower end of the threaded rod 6 is fixedly connected to the upper surface of the bottom column seat 1. The upper end of each support rod 4 is fixedly connected to a ring 7, and the ring 7 is rotatably connected to a rotating rod 8. The rotating rod 8 passes through the inside of multiple rings 7 on the left side, and the inner side of the rotating rod 8 is fixedly connected to one side of the clamping assembly, and a quick lock assembly is arranged between the other side of the clamping assembly and the ring 7 on the right.

[0029] Through the above technical solution, the upper end of the winding coil 3 is compressed by the compression assembly, and the right side of the compression assembly is conveniently unlocked and opened by the quick lock assembly. The compression assembly is connected to the rotating rod 8, and the rotating rod 8 is rotatably connected to the inside of the multiple sleeve rings 7 on the left side, so that the compression assembly can be rotated around the rotating rod 8 to open, and the upper part of the winding coil 3 is opened, which is convenient for inspection and replacement of the winding coil 3, and the operation is convenient. At the same time, after maintenance, the compression assembly can be quickly reset and locked, which is convenient for the rapid compression operation of the winding coil 3;

[0030] Embodiment 2:

[0031] See also Figure 1-4 In combination with Example 1, it is further obtained that the clamping assembly includes a top plate 9, two electric push rods 10 are installed inside the top plate 9, a pressure plate 11 is installed at the lower end of the electric push rod 10, a pressure plate 12 is arranged under the pressure plate 11, and two handles 13 are fixedly connected to the outside of the top plate 9.

[0032] The pressing plate 12 is sleeved on the outside of the core column 2 , and the pressing plate 12 is attached to the top of the winding coil 3 .

[0033] A positioning block 14 is fixedly connected to the upper portion of the pressing plate 12 , and the positioning block 14 can be engaged with the inner portion of the lower end of the pressing plate 11 .

[0034] A lock ring 15 is fixedly connected to the right side of the top plate 9 , and the lock ring 15 has the same inner diameter as the sleeve ring 7 .

[0035] The quick lock assembly includes a slide bar 16 , which is slidably connected to the outside of the right sleeve ring 7 , and a pin 17 is fixedly connected to the inside of the slide bar 16 .

[0036] The front end of the slide rod 16 is fixedly connected to a limit plate 18 , and the inner side of the limit plate 18 is fixedly connected to a return spring 19 .

[0037] The two pressing plates 11 are pushed down by the two electric push rods 10, and the bottom of the lowered pressing plate 11 is engaged with the positioning block 14 on the upper part of the pressing plate 12. The two pressing plates 11 simultaneously engage the two positioning blocks 14, thereby positioning the pressing plate 12 to make it stable and press down to prevent it from sliding. The clamping operation of this structure is convenient and fast, and it is easy to adjust. The threaded rod 6 is connected to the inner thread of the lower end of the threaded sleeve 5, and the lower end of the threaded rod 6 is fixedly connected to the upper surface of the bottom column seat 1, so that it is convenient to disassemble and assemble the support rod 4. By pushing the front end of the sliding rod 16, the return spring 19 is compressed, and the pin rod 17 is withdrawn from the right side collar 7 and the lock ring 15, thereby unlocking the right side of the clamping assembly and being able to rotate and open. When the clamping assembly is rotated to a horizontal position above the winding coil 3, the sliding rod 16 is released, and the pin rod 17 is pushed by the return spring 19, driving the sliding rod 16 to insert into the right side collar 7 and the lock ring 15, locking the right side of the clamping assembly.

[0038] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these specific embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer compression structure, comprising a bottom column seat (1), characterized in that: An iron core column (2) is installed in the middle of the bottom column seat (1), a winding coil (3) is arranged outside the iron core column (2), and a clamping mechanism is arranged on the top of the winding coil (3), and the clamping mechanism includes a supporting component and a clamping component; The support assembly comprises a plurality of support rods (4), wherein the plurality of support rods (4) are symmetrically distributed on both sides of the bottom column seat (1); the lower ends of the support rods (4) are rotatably connected to threaded sleeves (5); the lower ends of the threaded sleeves (5) are internally threadedly connected to threaded rods (6); the lower ends of the threaded rods (6) are fixedly connected to the upper surface of the bottom column seat (1); the upper ends of the support rods (4) are fixedly connected to a collar (7); the collars (7) are internally rotatably connected to a rotating rod (8); the rotating rod (8) passes through the interiors of the plurality of collars (7) on the left side; the inner sides of the rotating rods (8) are fixedly connected to one side of the clamping assembly; a quick lock assembly is provided between the other side of the clamping assembly and the collar (7) on the right side.

2. The transformer compression structure according to claim 1, characterized in that: The clamping assembly comprises a top plate (9), two electric push rods (10) are installed inside the top plate (9), a pressure plate (11) is installed at the lower end of the electric push rod (10), a pressure plate (12) is arranged below the pressure plate (11), and two handles (13) are fixedly connected to the outer side of the top plate (9).

3. The transformer compression structure according to claim 2, characterized in that: The pressing plate (12) is sleeved on the outside of the iron core column (2), and the pressing plate (12) is attached to the top of the winding coil (3).

4. The transformer compression structure according to claim 3, characterized in that: A positioning block (14) is fixedly connected to the upper portion of the pressure plate (12), and the positioning block (14) can be engaged with the interior of the lower end of the pressure plate (11).

5. The transformer compression structure according to claim 2, characterized in that: A lock ring (15) is fixedly connected to the right side of the top plate (9), and the lock ring (15) has the same inner diameter as the sleeve ring (7).

6. The transformer compression structure according to claim 1, characterized in that: The quick lock assembly comprises a slide bar (16), the slide bar (16) is slidably connected to the outside of the right sleeve ring (7), and a pin bar (17) is fixedly connected to the inside of the slide bar (16).

7. The transformer compression structure according to claim 6, characterized in that: The front end of the slide rod (16) is fixedly connected to a limit plate (18), and the inner side of the limit plate (18) is fixedly connected to a return spring (19).

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