A transformer core assembly splicing device

Abstract

The application provides a mutual inductor core assembly splicing device, which comprises a rotating ring, an inner plate and an outer plate arranged inside and outside the rotating ring, an inner storage box and an outer storage box arranged above the inner plate and the outer plate for feeding, a push rod arranged on the surface of the inner plate and the outer plate, and a push plate connected to one end of the push rod and used for pushing the inner core of the outer storage box and the inner storage box; the surface of the outer plate is provided with a slot, the surface of the push plate is provided with a connecting block which slides in the slot, and the device is provided with a telescopic column and a blind hole; when the push rod drives the push plate to move to the direction of the rotating ring to push the core, the connecting block synchronously slides along the slot on the outer plate, the telescopic column is extended and inserted into the blind hole, the relative position between the rotating ring and the outer plate and the inner plate is locked at the same time when the splicing action occurs, the possibility that the rotating ring moves relative to the feeding mechanism at the splicing moment is eliminated, and the alignment accuracy of the core and the winding coil is improved.

Description

Technical Field

[0001] This invention relates to the field of current transformers, and more particularly to a current transformer core assembly splicing device. Background Technology

[0002] Instrument transformers are important electrical components used in power systems for current and voltage measurement and relay protection. The core assembly, as the core component of the instrument transformer, is assembled from the core and winding coils. The assembly quality of the core assembly directly affects the electromagnetic performance, measurement accuracy, and operational reliability of the instrument transformer. During the production process of the instrument transformer core assembly, the core needs to be precisely spliced ​​with the pre-wound winding coils so that the core passes through the inside of the winding coils, ultimately forming a complete core assembly.

[0003] However, when the existing splicing device feeds the iron core into the winding coil, the carrier where the winding coil is located and the iron core feeding mechanism are usually indirectly positioned by the indexing mechanism. Due to the cumulative error of the indexing mechanism and the assembly gap between the moving parts, the relative position of the iron core and the winding coil is prone to shift at the moment of splicing, which makes it impossible for the iron core to pass smoothly into the winding coil, and may even scratch the insulation layer on the surface of the winding coil, affecting the electrical performance of the transformer. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a device for splicing transformer core components.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a current transformer core assembly splicing device, comprising: a rotating ring, an inner plate and an outer plate disposed inside and outside the rotating ring, and an inner storage box and an outer storage box disposed above the inner plate and the outer plate for feeding materials; It also includes push rods on the surfaces of the inner and outer plates. One end of the push rod is connected to a push plate for pushing the iron core inside the outer and inner storage boxes. The surface of the outer plate has a slot, and the surface of the push plate has a connecting block that slides inside the slot. The surface of the connecting block has an inner column, and one end of the inner column is connected to a telescopic column. The interior of the outer plate has a circular groove for the inner column and the telescopic column to slide. The surface of the rotating ring has a blind hole that cooperates with the telescopic column for positioning. When the push rod drives the push plate to move, and the push plate pushes out the parts inside the outer and inner storage boxes, the inner column and the telescopic column are moved through the connecting block. The telescopic column is inserted into the blind hole, locking the relative position of the rotating ring and the outer and inner plates.

[0006] Preferably, the inner column is provided with a spring connected to the telescopic column. When the telescopic column is inserted into the blind hole, the spring deforms, balancing the movement distance of the push plate and the inner column.

[0007] Preferably, the outer plate has double side plates on its surface to guide the movement of parts. The parts inside the outer and inner storage boxes fall into the middle of the double side plates due to gravity.

[0008] Preferably, the surface of the push plate is provided with a fixed plate to restrict the movement of parts. When the push plate pushes a part away from under the outer storage box and the inner storage box, the fixed plate closes the bottom of the outer storage box and the inner storage box to prevent the outer storage box and the inner storage box from continuing to discharge materials.

[0009] Preferably, the outer and inner storage boxes are provided with longitudinal grooves that match the parts. The parts move vertically downward along the longitudinal grooves. One end of the push plate is provided with a protrusion that fits the parts, so that the push plate can push the parts to move in a straight line.

[0010] Preferably, the surface of the rotating ring is provided with a groove for accommodating the semi-finished product. The groove consists of two slots of different sizes that fit the semi-finished product. A blind hole is provided corresponding to the groove. When the telescopic column is inserted into the blind hole, the part pushed out by the push plate aligns with the semi-finished product inside the groove to form an assembly fit.

[0011] Preferably, the surface of the rotating ring is provided with an enlarged groove for guiding the telescopic column into the blind hole, and the telescopic column enters the blind hole along the enlarged groove after entering the enlarged groove.

[0012] Preferably, the outer and inner storage boxes are provided with vertical plates for correcting the position of parts, and airbags are provided on the surfaces of the outer and inner storage boxes for pushing the vertical plates. The surfaces of the outer and inner plates are provided with air pumps for supplying air to the airbags, and the surfaces of the air pumps are provided with main air supply pipes connected to the airbags.

[0013] Preferably, the outer and inner storage boxes are provided with limiting boxes on their outer sides to restrict the position of the airbag. When the airbag inflates, it pushes the longitudinal plate to move.

[0014] Preferably, the airbags are provided in multiple units, and the multiple airbags are provided with separate air supply pipes for communication.

[0015] Compared with the prior art, the beneficial effects of the present invention include: by setting telescopic columns and blind holes, when the push rod drives the push plate to move towards the rotating ring to push the iron core, the connecting block slides synchronously along the slot on the outer plate, driving the telescopic column to extend and insert into the blind hole, thereby locking the relative position between the rotating ring and the outer and inner plates at the same moment the splicing action occurs, eliminating the possibility of the rotating ring moving relative to the feeding mechanism at the moment of splicing, and improving the alignment accuracy between the iron core and the winding coil. At the same time, longitudinal plates are set inside the outer and inner storage boxes, and airbags are set on the outer surface of the longitudinal plates. After the airbags expand, they push the longitudinal plates to move into the storage box, actively straightening and correcting the position of the iron core in the storage box, ensuring that each falling iron core can accurately enter the predetermined position between the two side plates, solving the problem of jamming and pushing failure caused by the tilt of the iron core during the falling process. Attached Figure Description

[0016] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 The diagram schematically illustrates the structure of a current transformer core assembly splicing device according to an embodiment of the present invention.

[0017] Figure 2 The diagram schematically illustrates a cross-sectional view of a rotating ring according to an embodiment of the present invention.

[0018] Figure 3 The diagram schematically illustrates an outer panel structure according to an embodiment of the present invention.

[0019] Figure 4 The diagram schematically shows a cross-sectional view of the outer panel according to an embodiment of the present invention.

[0020] Figure 5 The diagram schematically illustrates the internal structure of the outer panel according to an embodiment of the present invention.

[0021] Figure 6 The diagram schematically shows a cross-sectional view of an external storage box according to an embodiment of the present invention.

[0022] The following are labeled in the diagram: 1. Rotating ring; 2. Groove; 3. Outer storage box; 4. Inner storage box; 5. Outer plate; 6. Inner plate; 7. Push rod; 8. Push plate; 9. Fixed plate; 10. Double side plate; 11. Slot; 12. Inner column; 13. Telescopic column; 14. Connecting block; 15. Circular groove; 16. Blind hole; 17. Air pump; 18. Main air supply pipe; 19. Limiting box; 20. Airbag; 21. Longitudinal plate; 22. Sub-air supply pipe; 23. Expanded groove. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0025] like Figure 1 and Figure 2 As shown, the present invention provides a current transformer core assembly splicing device, including a rotating ring 1, an inner plate 6 and an outer plate 5 disposed on the inner and outer sides of the rotating ring 1, and an inner storage box 4 and an outer storage box 3 disposed above the inner plate 6 and the outer plate 5 for feeding materials.

[0026] The rotating ring 1 has a circular structure, and its surface is provided with a plurality of grooves 2 for accommodating the winding coils of the transformer core. The outer plate 5 is located on the outside of the rotating ring 1, and the inner plate 6 is located on the inside of the rotating ring 1. The outer plate 5 and the inner plate 6 are arranged opposite to each other and correspond to the outer ring surface and the inner ring surface of the rotating ring 1, respectively. The outer storage box 3 is fixedly arranged above the outer plate 5, and the inner storage box 4 is fixedly arranged above the inner plate 6. The two have the same structure and are arranged symmetrically relative to the rotating ring 1.

[0027] like Figure 4 As shown, push rods 7 are fixed on the surfaces of the inner plate 6 and the outer plate 5. The push rods 7 are electric push rods. One end of the push rod 7 is fixed with a push plate 8. The push plate 8 is used to push the iron core inside the outer storage box 3 and the inner storage box 4 to move towards the rotating ring 1. The surface of the outer plate 5 is provided with a slot 11 extending along the moving direction of the push plate 8. A connecting block 14 is fixed at the bottom of the push plate 8. The connecting block 14 is set inside the slot 11 and can slide along the length direction of the slot 11. An inner column 12 is fixed on one side of the connecting block 14. One end of the inner column 12 is connected to a telescopic column 13. The telescopic column 13 can extend and retract along the axial direction of the inner column 12. A circular groove 15 is provided in the interior of the outer plate 5 in the horizontal direction. The circular groove 15 is used for the sliding of the inner column 12 and the telescopic column 13. A blind hole 16 is provided at a corresponding position on the outer ring surface of the rotating ring 1. The blind hole 16 is used to be inserted and matched with the end of the telescopic column 13 to achieve positioning. The structure on the inner plate 6 is symmetrically arranged with the structure on the outer plate 5.

[0028] like Figure 5As shown, a spring is fixed inside the inner column 12. One end of the spring is fixed to the inner wall of the inner column 12, and the other end of the spring is connected to the telescopic column 13. When the telescopic column 13 is inserted into the blind hole 16, the spring undergoes elastic deformation, thereby balancing the difference between the pushing stroke of the push plate 8 and the effective stroke of the inner column 12, while ensuring that the telescopic column 13 and the blind hole 16 always remain in close contact.

[0029] like Figure 3 As shown, the surface of the outer plate 5 is fixed with a double side plate 10 for guiding the movement of the iron core. The double side plate 10 consists of two baffles arranged parallel to each other along the moving direction of the push plate 8. After the iron core inside the outer storage box 3 and the inner storage box 4 falls under the action of gravity, it enters the middle of the double side plate 10, and the double side plate 10 limits the lateral position of the iron core.

[0030] The surface of the push plate 8 is fixed with a fixed plate 9 that restricts the movement of the iron core. When the push plate 8 pushes an iron core located at the bottom of the outer storage box 3 and the inner storage box 4 forward, the fixed plate 9 moves simultaneously to the bottom of the outer storage box 3 and the inner storage box 4 below the discharge port, and closes the discharge port to prevent the next iron core in the outer storage box 3 and the inner storage box 4 from continuing to be fed. When the push plate 8 returns to its original position, the fixed plate 9 leaves the bottom of the storage box, and the next iron core falls into the space between the two side plates 10 due to gravity, waiting for the next push.

[0031] The outer storage box 3 and the inner storage box 4 are provided with longitudinal grooves that match the shape of the iron core. The iron core moves vertically downward along the longitudinal grooves to prevent the iron core from tilting or flipping during the fall. The push plate 8 has a protrusion that fits against the end face of the iron core at one end. The shape of the protrusion matches the contour of the end face of the iron core, so that the push plate 8 can push the iron core to move in a straight line.

[0032] The groove 2 is set as two grooves of different sizes that fit with the winding coil, and is used to accommodate two winding coils of different sizes. The blind hole 16 is set in correspondence with the groove 2. Each groove 2 is set with a blind hole 16. When the telescopic column 13 is inserted into the blind hole 16, the iron core pushed out by the push plate 8 is exactly in the assembly position with the winding coil inside the groove 2.

[0033] The expansion groove 23 inside the outer plate 5 extends to the end face of the rotating ring 1 and communicates with the blind hole 16 on the rotating ring 1, thereby forming a guide channel for guiding the telescopic column 13 into the blind hole 16. During the extension process, the telescopic column 13 first moves along the axial direction of the expansion groove 23, and then inserts into the interior of the blind hole 16 after being guided by the expansion groove 23 to the corresponding position of the blind hole 16. This can eliminate the alignment deviation during the rotation process.

[0034] like Figure 6As shown, the outer storage box 3 and the inner storage box 4 are also provided with a longitudinal plate 21 for correcting the position of the iron core. The longitudinal plate 21 is arranged vertically and can move horizontally. The outer surfaces of the outer storage box 3 and the inner storage box 4 are fixed with an airbag 20 for pushing the longitudinal plate 21. The surfaces of the outer plate 5 and the inner plate 6 are respectively provided with an air pump 17 for supplying air to the airbag 20. The output end of the air pump 17 is connected to a main air supply pipe 18, which is connected to the airbag 20.

[0035] The outer storage box 3 and the inner storage box 4 are fixed with a limiting box 19 to restrict the position of the airbag 20. The limiting box 19 covers the outside of the airbag 20 and limits the outer side and vertical direction of the airbag 20. It has an opening only on the side facing the longitudinal plate 21. When the airbag 20 inflates, it is constrained by the inner wall of the limiting box 19. The airbag 20 can only deform and expand in the direction facing the longitudinal plate 21, thereby pushing the longitudinal plate 21 to move into the storage box and straightening the iron core in the storage box.

[0036] Multiple airbags 20 are provided, and the multiple airbags 20 are arranged at intervals in the horizontal direction. Adjacent airbags 20 are connected to each other through a branch air supply pipe 22. When the air pump 17 supplies air to one of the airbags 20 through the main air supply pipe 18, the gas enters the other airbags 20 in sequence through the branch air supply pipe 22, causing the multiple airbags 20 to expand synchronously, thereby clamping and correcting the multiple iron cores in the storage box.

[0037] In this embodiment, the transformer core is first installed into the outer storage box 3 and the inner storage box 4. Under the action of gravity, the core falls along the longitudinal groove inside the outer storage box 3 and the inner storage box 4. The air pump 17 is started, and the air pump 17 simultaneously inflates multiple air bags 20 through the main air supply pipe 18 and the branch air supply pipe 22. The air bags 20 expand in the direction of the longitudinal plate 21 under the restriction of the limiting box 19, pushing the longitudinal plate 21 to press and correct the position of the core in the storage box, so that the core accurately enters between the two side plates 10. The push rod 7 drives the push plate 8 to move along the surface of the outer plate 5 and the inner plate 6. When the push plate 8 moves, the fixed plate 9 closes the bottom discharge port of the outer storage box 3 and the inner storage box 4 to prevent subsequent core feeding. At the same time, the connecting block 14 on the surface of the push plate 8 slides along the slot 11. The push plate 8 pushes the iron core to a position close to the rotating ring 1, and the end of the telescopic column 13 is aligned with the blind hole 16 on the rotating ring 1 along the guide of the circular groove 15 and inserted into it, thereby locking the relative position between the rotating ring 1 and the outer plate 5 and the inner plate 6. The iron core pushed out by the push plate 8 is inserted into the winding coil in the groove 2. After the splicing is completed, the push rod 7 drives the push plate 8 to move in the opposite direction. The telescopic column 13 is withdrawn from the blind hole 16 under the action of the spring, and the push plate 8 returns to the initial position. The fixed plate 9 leaves the bottom of the storage box, and the next iron core falls into place. The rotating ring 1 rotates by one division angle, so that the winding coil on the surface of the next groove 2 rotates to the working position between the outer plate 5 and the inner plate 6.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A device for splicing current transformer core components, characterized in that, include: Rotating ring (1), inner plate (6) and outer plate (5) set inside and outside the rotating ring (1), and inner storage box (4) and outer storage box (3) set above the inner plate (6) and outer plate (5) for feeding materials. It also includes push rods (7) on the surfaces of the inner plate (6) and the outer plate (5), one end of the push rod (7) being connected to a push plate (8) for pushing the iron core inside the outer storage box (3) and the inner storage box (4), the surface of the outer plate (5) being provided with a slot (11), the surface of the push plate (8) being provided with a connecting block (14) that slides inside the slot (11), the surface of the connecting block (14) being provided with an inner column (12), one end of the inner column (12) being connected to a telescopic column (13), and the interior of the outer plate (5) being provided with a spacer for the inner column (13). 12) and the circular groove (15) that slides with the telescopic column (13). The surface of the rotating ring (1) is provided with a blind hole (16) that cooperates with the telescopic column (13) for positioning. When the push rod (7) drives the push plate (8) to move, the push plate (8) pushes out the internal parts of the outer storage box (3) and the inner storage box (4). The inner column (12) and the telescopic column (13) are driven to move through the connecting block (14). The telescopic column (13) is inserted into the blind hole (16) to lock the relative position of the rotating ring (1) and the outer plate (5) and the inner plate (6).

2. The current transformer core assembly splicing device according to claim 1, characterized in that, The inner column (12) is equipped with a spring connected to the telescopic column (13). When the telescopic column (13) is inserted into the blind hole (16), the spring deforms, balancing the movement distance of the push plate (8) and the inner column (12).

3. The current transformer core assembly splicing device according to claim 1, characterized in that, The outer plate (5) has a double side plate (10) on its surface to guide the movement of parts. The parts inside the outer storage box (3) and the inner storage box (4) fall into the middle of the double side plate (10) due to gravity.

4. The current transformer core assembly splicing device according to claim 3, characterized in that, The surface of the push plate (8) is provided with a fixed plate (9) to restrict the movement of parts. When the push plate (8) pushes a part away from the outer storage box (3) and the inner storage box (4), the fixed plate (9) seals the bottom of the outer storage box (3) and the inner storage box (4) to prevent the outer storage box (3) and the inner storage box (4) from continuing to feed materials.

5. The current transformer core assembly splicing device according to claim 1, characterized in that, The outer storage box (3) and the inner storage box (4) are provided with longitudinal grooves that match the parts. The parts move vertically downward along the longitudinal grooves. One end of the push plate (8) is provided with a protrusion that fits the parts, so that the push plate (8) can push the parts to move in a straight line.

6. The current transformer core assembly splicing device according to claim 1, characterized in that, The surface of the rotating ring (1) is provided with a groove (2) for accommodating the semi-finished product. The groove (2) consists of two slots of different sizes that fit the semi-finished product. The blind hole (16) is provided in correspondence with the groove (2). When the telescopic column (13) is inserted into the blind hole (16), the part pushed out by the push plate (8) aligns with the semi-finished product inside the groove (2) to form an assembly fit.

7. The current transformer core assembly splicing device according to claim 6, characterized in that, The surface of the rotating ring (1) is provided with an expansion groove (23) for guiding the telescopic column (13) into the blind hole (16). After the telescopic column (13) enters the expansion groove (23), it enters the blind hole (16) along the expansion groove (23).

8. The current transformer core assembly splicing device according to claim 1, characterized in that, The outer storage box (3) and the inner storage box (4) are provided with a longitudinal plate (21) for correcting the position of the parts. An airbag (20) is provided on the surface of the outer storage box (3) and the inner storage box (4) for pushing the longitudinal plate (21). An air pump (17) for supplying air to the airbag (20) is provided on the surface of the outer plate (5) and the inner plate (6). A main air supply pipe (18) connected to the airbag (20) is provided on the surface of the air pump (17).

9. A current transformer core assembly splicing device according to claim 8, characterized in that, The outer storage box (3) and the inner storage box (4) are provided with a limiting box (19) to restrict the position of the airbag (20). When the airbag (20) inflates, the airbag (20) pushes the longitudinal plate (21) to move.

10. A current transformer core assembly splicing device according to claim 8, characterized in that, The airbags (20) are provided in multiple units, and the multiple airbags (20) are provided with separate air supply pipes (22) for communication.

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