A resin filling treatment device for a transformer

Abstract

The present application relates to a kind of mutual inductor resin filling processing device, including lower rail disc, upper rail disc is equipped above lower rail disc, lower rail disc is equipped with the load tray capable of lifting along the upper wall profile of lower rail disc, load tray is coaxially provided with sealing cylinder, and second air pipe is communicated on sealing cylinder.The sealing cylinder and load tray of the present application can be lifted along lower rail disc and upper rail disc, to realize the sealing of mutual inductor in fixed position, then by vacuumizing, make the sealed space be in negative pressure state, to promote the bubble in resin to escape.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mutual inductors, and particularly relates to a mutual inductor resin filling treatment device. BACKGROUND

[0002] Mutual inductors play a crucial role in power systems and have the functions of measurement, protection, control and isolation. The insulation performance of mutual inductors is very important. If the insulation performance of mutual inductors is insufficient, problems such as measurement error, protection misoperation or refusal to operate may occur, thereby affecting the stable operation of the entire power system.

[0003] In order to improve the insulation performance of mutual inductors, resin is filled into the shell during assembly of the mutual inductor. The resin can effectively improve the insulation strength of the mutual inductor and enhance the mechanical strength thereof. When the resin is filled, air bubbles are generated in the resin, which can seriously affect the insulation performance of the mutual inductor and pose a great safety risk. SUMMARY

[0004] In view of the above, in order to overcome the defects of the prior art, the application provides a mutual inductor resin filling treatment device, which at least partially solves the above problems.

[0005] The technical scheme adopted by the application is as follows: the application provides a mutual inductor resin filling treatment device, which comprises a lower guide rail disc, a lower groove is arranged on the lower guide rail disc, an upper guide rail disc is arranged above the lower guide rail disc, the lower guide rail disc and the upper guide rail disc are coaxially arranged, and an upper groove is arranged on the upper guide rail disc.

[0006] Further, a rotating disc is rotatably arranged in the lower guide rail disc, the rotating disc comprises a central carrier, a plurality of guide holes are circumferentially arranged on the central carrier, a lower carrier is fixed to the central carrier through a connecting rod, and an upper carrier is fixed to the central carrier through a connecting rod.

[0007] Further, a gear ring is fixed to the lower carrier, a driving wheel is engaged with the gear ring, and a motor is connected to the center of the driving wheel.

[0008] Further, a plurality of material loading discs are circumferentially arranged above the central carrier, an inlet baffle is arranged on one side of the lower groove, a guide groove is arranged on the material loading disc, and an outlet baffle is arranged on the side of the lower groove away from the inlet baffle.

[0009] Further, a lower contact rod is arranged below the material loading disc, the lower contact rod is slidably arranged on the upper wall profile of the lower guide rail disc, and the lower contact rod is also slidably arranged in the guide hole, a plurality of sealing cylinders are circumferentially arranged below the upper carrier, a first spring is connected between the sealing cylinder and the lower wall of the upper carrier, and the sealing cylinder is coaxially arranged with the material loading disc.

[0010] Further, the sealing cylinder center is slidably provided with an upper touch rod, the upper end of the upper touch rod penetrates the upper loading table and slidably contacts the lower wall of the upper guide rail disc, the lower end of the upper touch rod can be sealed with the sealing cylinder taper, a flange is fixed on the upper touch rod, and the flange is connected with the upper loading table through a second spring.

[0011] Further, the sealing cylinder is provided with an upper cover cylinder, a second air pipe capable of relatively sliding is penetratingly arranged on the upper cover cylinder, the upper end of the second air pipe is fixed on the upper loading table, and a first air pipe is connected to the second air pipe.

[0012] Further, in order to draw air from the first air pipe and not be affected by the rotation of the rotating disc, the upper loading table is fixed with an air supply ring, the outer side of the air supply ring is provided with a gas supply ring, the gas supply ring is fixedly arranged and does not follow the rotation of the upper loading table, the gas supply ring is connected with an air pump, the first air pipe array is arranged on the air supply ring, the air supply ring is internally provided with a first annular cavity, the gas supply ring is internally provided with a second annular cavity, and the first annular cavity and the second annular cavity are arranged in communication.

[0013] The application has the following beneficial effects: the sealing cylinder and the loading disc can be lifted along the lower guide rail disc and the upper guide rail disc to realize the sealing of the mutual inductor at a fixed position, and then vacuumizing is performed to make the sealing space in a negative pressure state, so that the bubbles in the resin escape, and the whole process can be automatically fed and discharged under the action of the loading disc, and the bubble removing operation is rapid and uninterrupted. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the mutual inductor resin filling treatment device of the embodiment of the application;

[0015] Figure 2 It is a position structure schematic view of the lower guide rail disc, the upper guide rail disc and the rotating disc;

[0016] Figure 3 It is a position structure sectional view of the rotating disc and one group of sealing cylinders;

[0017] Figure 4 It is a structural schematic view of the loading disc and the sealing cylinder;

[0018] Figure 5 It is Figure 3 It is an enlarged view of the I part;

[0019] Figure 6 It is Figure 4 It is a sectional view of

[0020] Figure 7 It is a state view when the upper touch rod and the sealing cylinder are closed;

[0021] Figure 8 It is a structural schematic view of the loading disc.

[0022] Wherein, 1, the lower guide rail disc, 1-1, the lower groove, 2, the upper guide rail disc, 2-1, the upper groove, 3, the rotating disc, 4, the air supply ring, 5, the air supply ring, 6, the inlet baffle, 7, the outlet baffle, 8, the material loading disc, 9, the sealing cylinder, 10, the central loading platform, 11, the connecting rod, 12, the lower loading platform, 13, the upper loading platform, 14, the gear ring, 15, the driving wheel, 16, the motor, 17, the guide hole, 18, the first annular cavity, 19, the second annular cavity, 20, the first air pipe, 21, the upper cover cylinder, 22, the first spring, 23, the upper contact rod, 24, the second air pipe, 25, the second spring, 26, the flange, 27, the guide groove, 28, the lower contact rod.

[0023] The accompanying drawings are used to provide further understanding of the present application, and form a part of the specification, which are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present application.

[0026] As Figure 1 shown, the mutual inductor resin filling treatment device provided by the embodiments of the present application comprises a lower guide rail disc 1, the lower guide rail disc 1 is provided with a lower groove 1-1, the lower groove 1-1 makes the upper wall of the lower guide rail disc 1 have a certain amplitude fluctuation, an upper guide rail disc 2 is arranged above the lower guide rail disc 1, the lower guide rail disc 1 and the upper guide rail disc 2 are coaxially arranged, and the upper guide rail disc 2 is provided with an upper groove 2-1, the upper groove 2-1 also makes the lower wall of the upper guide rail disc 2 have a certain amplitude fluctuation, and the position and size of the upper groove 2-1 are matched with the lower groove 1-1.

[0027] As Figure 2 and Figure 3As shown, a turntable 3 is rotatably mounted in the lower guide rail disk 1. The turntable 3 is located between the lower guide rail disk 1 and the upper guide rail disk 2. The turntable 3 includes a central platform 10. The central platform 10 is provided with guide holes 17 distributed in a circle. A lower platform 12 is fixed below the central platform 10 by a connecting rod 11. An upper platform 13 is fixed above the central platform 10 by a connecting rod 11.

[0028] A gear ring 14 is fixed on the download platform 12. A drive wheel 15 meshes on the gear ring 14. A motor 16 is connected to the center of the drive wheel 15. When the motor 16 starts, it drives the gear ring 14 to rotate through the drive wheel 15. The gear ring 14 drives the download platform 12 to rotate, thereby driving the central platform 10 and the upper platform 13 to rotate together around the lower guide rail 1.

[0029] A circular array of material trays 8 is arranged above the central platform 10. The material trays 8 are used to receive current transformers that have been filled with resin. The current transformers are fixed by tooling, which then mates with the material trays 8. A feed baffle 6 is provided on one side of the lower groove 1-1, and a conveyor belt for transporting the current transformers is arranged on the outer side of the lower groove 1-1. When the current transformer moves from the conveyor belt to the central platform 10, the tooling carrying the current transformer is blocked by the feed baffle 6, causing the tooling to overlap with the material trays 8. To better fix the positioning tooling of the current transformer to the material trays 8, as shown... Figure 8 As shown, the material tray 8 is provided with a guide groove 27. The end of the guide groove 27 is open so that the guide groove 27 can better cooperate with the tooling. When the tooling moves to the upper wall of the material tray 8, it will be positioned with the material tray 8 through the guide groove 27, so that the angle between the current transformer and the material tray 8 is fixed. The lower groove 1-1 is provided with a discharge baffle 7 on the side away from the feed baffle 6. When the central platform 10 rotates, the material tray 8 drives the current transformer to rotate to the corresponding position. After the exhaust is completed, it is blocked by the discharge baffle 7, so that the fixing tooling of the current transformer is disengaged from the guide groove 27. The number of material trays 8 and the rotation frequency are adapted to the production rhythm of the production line to meet the needs of automated assembly line operation.

[0030] like Figure 1 , Figure 3 and Figure 8 As shown, a lower contact rod 28 is provided under the material tray 8. The lower contact rod 28 is slidably disposed on the upper wall contour of the lower guide rail 1, and the lower contact rod 28 is also slidably disposed in the guide hole 17. The lower contact rod 28 can move up and down along the lower guide rail 1, so that the material tray 8 can move up and down while sliding along the lower guide rail 1. A sealing cylinder 9 is arranged in a circular array below the upper platform 13. A first spring 22 is connected between the sealing cylinder 9 and the lower wall of the upper platform 13. The first spring 22 always pushes the sealing cylinder 9 downward. The sealing cylinder 9 and the material tray 8 are coaxially arranged. When the material tray 8 rises to the highest position under the action of the lower guide rail, the sealing cylinder 9 and the material tray 8 can be sealed together.

[0031] like Figures 3-7As shown, the sealing cylinder 9 is centrally slidably provided with an upper contact rod 23, the upper end of the upper contact rod 23 penetrates the upper loading table 13 and slidably contacts the lower wall of the upper guide rail disc 2, the upper contact rod 23 slides up and down in the upper loading table 13 under the action of the upper guide rail disc 2, the lower end of the upper contact rod 23 can be in close contact with the taper of the sealing cylinder 9, when the lower end of the upper contact rod 23 is in close contact with the taper of the sealing cylinder 9, there is no gap between the upper contact rod 23 and the sealing cylinder 9, when the lower end of the upper contact rod 23 moves downward by a certain distance, the upper contact rod 23 and the sealing cylinder 9 are no longer in close contact, and a gap is formed therebetween, and gas can flow in the gap, the upper contact rod 23 is fixed with a flange 26, the flange 26 is connected with the second spring 25 between the upper loading table 13, and the second spring 25 always pushes the upper contact rod 23 upward, so that the upper contact rod 23 is always in a high position, and only under the action of the upper guide rail disc 2, the upper contact rod 23 moves up and down.

[0032] The sealing cylinder 9 is provided with an upper cover cylinder 21, the upper cover cylinder 21 is provided with a second gas pipe 24 which can slide relatively, the upper end of the second gas pipe 24 is fixed on the upper loading table 13, and the second gas pipe 24 is connected with the first gas pipe 20, when the material loading disc 8 is in close contact with the sealing cylinder 9, the upper contact rod 23 moves downward, so that a gap is formed between the upper contact rod 23 and the upper wall of the sealing cylinder 9, at this time, the upper cover cylinder 21 is in communication with the sealing cylinder 9, and gas can be extracted to the outside through the second gas pipe 24 and the first gas pipe 20, so that the sealing cylinder 9 is in a negative pressure state, so that the gas bubbles in the internal mutual inductor resin escape.

[0033] In order to extract gas from the first gas pipe 20 without being affected by the rotation of the rotating disc 3, the upper loading table 13 is fixed with an air passage ring 4, the air passage ring 4 rotates with the upper loading table 13, the outer side of the air passage ring 4 is provided with a gas supply ring 5, the gas supply ring 5 is fixed and does not rotate with the upper loading table 13, the gas supply ring 5 is connected with a gas pump, the first gas pipe 20 is arranged on the air passage ring 4, the air passage ring 4 is provided with a first annular cavity 18, the first gas pipe 20 is in communication with the first annular cavity 18, the gas supply ring 5 is provided with a second annular cavity 19, the first annular cavity 18 and the second annular cavity 19 are in communication, and the gas pump can extract gas from the upper cover cylinder 21 of the sealing cylinder 9 through the second annular cavity 19, the first annular cavity 18, the first gas pipe 20 and the second gas pipe 24, so as to realize the effect of low-pressure bubble exhaust.

[0034] In specific work, the tool fixed with the mutual inductor moves to the direction of the rotating disc 3 along with the conveying belt, when the tool contacts the material inlet baffle 6, the lower part of the tool simultaneously slides into the guide groove 27, so that the mutual inductor on the tool is connected and fixed with the material loading disc 8.

[0035] The motor 16 is started, the driving gear 14 is driven to rotate through the driving wheel 15, and the lower loading table 12 is driven to rotate, the upper loading table 13 and the central loading table 10 are driven to rotate through the connecting rod 11, so that the material loading disc 8 fixed with the mutual inductor on the central loading table 10 rotates, and the sealing cylinder 9 coaxially arranged above the material loading disc 8 rotates.

[0036] When the carrier tray 8 rotates, the lower contact lever 28 slides along the upper wall of the lower guide rail tray 1, and when the lower contact lever 28 slides to the rising slope side of the lower groove 1-1, the lower contact lever 28 moves upward and drives the rotating tray 3 to move upward until the carrier tray 8 closes the lower opening end of the sealing cylinder 9, at the same time, the upper contact lever 23 also slides along the lower wall of the upper guide rail tray 2 and slides downward under the action of the upper groove 2-1 against the resistance of the second spring 25 until the gap between the bottom end of the upper contact lever 23 and the center of the upper wall of the sealing cylinder 9 appears, at this time, the gap between the upper cover cylinder 21 and the sealing cylinder 9 appears.

[0037] Then, the air pump is started, and the air pump draws air from the upper cover cylinder 21 through the first annular cavity 18, the second annular cavity 19, the first air pipe 20 and the second air pipe 24, so that the upper cover cylinder 21 and the sealing cylinder 9 are in a negative pressure state, and the bubbles in the transformer resin escape under the low pressure state, thereby reducing the bubbles in the resin and improving the insulation performance of the resin.

[0038] The carrier tray 8 and the sealing cylinder 9 continue to rotate with the rotating tray 3, and when the carrier tray 8 rotates to the lower groove 1-1 near the discharge tray side, the upper contact lever 23 slides along the upper groove 2-1 and rebounds upward under the action of the second spring 25, so that the sealing cylinder 9 and the upper cover cylinder 21 are re-isolated, the lower contact lever 28 slides downward along the lower groove 1-1, so that the carrier tray 8 and the sealing cylinder 9 are separated, and the transformer in the carrier tray 8 is exposed again, then the workpiece carrying the transformer is blocked by the discharge tray and slides out along the direction of the guide groove 27, so that the discharged transformer enters the next process.

[0039] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution can be designed, which shall belong to the protection scope of the present application.

Claims

1. A device for filling resin in a current transformer, characterized in that, include: The lower guide plate (1) has an annular upper surface with an undulating profile. Multiple material trays (8) are disposed on the upper surface of the lower guide rail disk (1) and configured to be driven to rotate in a ring and simultaneously rise and fall with the contour of the upper surface. The material trays (8) are used to fix the mutual inductors. The upper guide rail (2) is located above the lower guide rail (1); Multiple sealing cylinders (9) are located below the upper guide plate (2). The sealing cylinders (9) are arranged opposite to the material tray (8), and the sealing cylinders (9) and the material tray (8) can be sealed together. The second air tube (24) is connected to the sealing cylinder (9) and is configured to draw air from the sealing cylinder (9) through an external device; The lower guide rail disk (1) is provided with a turntable (3) that rotates in the turntable (3). The turntable (3) includes a central platform (10) and the central platform (10) is provided with guide holes (17) distributed in a circle. The material tray (8) is arranged in a circumferential array above the central platform (10). The material tray (8) is provided with a lower contact rod (28) that slides in contact with the lower guide rail (1). The lower contact rod (28) is slidably disposed in the guide hole (17) and slides up and down along the lower guide rail (1).

2. The current transformer resin filling treatment device according to claim 1, characterized in that: The central platform (10) is fixed to a download platform (12) below it via a connecting rod (11), and the central platform (10) is fixed to an upper platform (13) above it via a connecting rod (11).

3. The current transformer resin filling treatment device according to claim 2, characterized in that: A gear ring (14) is fixed on the download platform (12), and a drive wheel (15) is engaged on the gear ring (14). A motor (16) is connected to the center of the drive wheel (15).

4. The current transformer resin filling treatment device according to claim 2, characterized in that: The sealing cylinder (9) is arranged in a circumferential array below the upper platform (13), and a first spring (22) is connected between the sealing cylinder (9) and the lower wall of the upper platform (13).

5. The current transformer resin filling treatment device according to claim 2, characterized in that: The sealing cylinder (9) is slidably provided with an upper contact rod (23). The upper end of the upper contact rod (23) slides in contact with the lower wall of the upper guide plate (2). Under the action of the upper guide plate (2), the upper contact rod (23) slides up and down in the upper platform (13). A flange (26) is fixed on the upper contact rod (23). A second spring (25) is connected between the flange (26) and the upper platform (13). The lower end of the upper contact rod (23) can be taperedly sealed with the sealing cylinder (9).

6. The current transformer resin filling treatment device according to claim 5, characterized in that: The sealing cylinder (9) is provided with an upper cover cylinder (21), the upper end of the second air pipe (24) is fixed on the upper platform (13), the second air pipe (24) passes through the upper cover cylinder (21) and can slide relative to it, and the second air pipe (24) is connected to the first air pipe (20).

7. The current transformer resin filling treatment apparatus according to claim 6, characterized in that: A ventilation ring (4) is fixed on the upper platform (13). An air supply ring (5) is provided on the outside of the ventilation ring (4). The air supply ring (5) is fixedly installed and connected to an air pump. The first air pipe (20) is arrayed on the ventilation ring (4).

8. The current transformer resin filling treatment apparatus according to claim 7, characterized in that: The ventilation ring (4) has a first annular cavity (18), and the air supply ring (5) has a second annular cavity (19). The first annular cavity (18) and the second annular cavity (19) are connected.

9. The current transformer resin filling treatment device according to claim 1, characterized in that: The loading tray (8) is provided with a guide groove (27).

10. The current transformer resin filling treatment apparatus according to claim 1, characterized in that: The lower guide rail plate (1) is provided with a lower groove (1-1), the upper guide rail plate (2) is provided with an upper groove (2-1), a feed baffle (6) is provided on one side of the lower groove (1-1), and a discharge baffle (7) is provided on the side of the lower groove (1-1) away from the feed baffle (6).

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