A power transformer standing water drying temperature positive and negative conveying adjusting device

Abstract

The utility model provides a power transformer vanli water drying temperature positive and negative conveying adjusting device relates to the adjusting device technical field of impregnation treatment drying equipment, including drying box body still includes drying position adjusting assembly, drying position adjusting assembly includes the placing tray of sliding connection on drying box body, has the sliding disc in placing tray through first pivot connection, has the transmission frame on sliding disc through transmission block sliding connection, has the abutment disc on transmission frame through first spring fixed connection, the utility model discloses transmission frame drives abutment disc and combines first spring elasticity pressure, automatically pushes and shoves transformer in placing tray alignment, ensures all transformer in batch heating position unification while adapting different specifications transformer, reduces the difference of quality of placing deviation aggravation, effectively avoided the problem that some places have not baked in the prior art in background art, some places can be baked, seriously influence product quality and consistency problem.

Description

Technical Field

[0001] This utility model relates to the technical field of adjustment devices for impregnation and drying equipment, and in particular to a power transformer varnish drying temperature forward and reverse conveying adjustment device. Background Technology

[0002] The forward and reverse conveying adjustment device for varnish drying of power transformers is an automated equipment designed specifically for the drying process of transformer windings after varnish impregnation. Its core function is to ensure uniform curing of varnish and improve drying efficiency by combining dynamic adjustment of conveying direction with precise temperature control.

[0003] However, in existing technologies, most traditional ovens or tunnel furnaces use unidirectional continuous conveying, with the transformer entering from one end and exiting from the other. This results in differences in heating temperature and duration for transformers located in different positions within the furnace, and even for the same transformer in different parts. The temperature is higher in the parts closer to the heat source and lower in the parts farther away from the heat source. There is also a temperature gradient between the middle and both ends of the furnace body. As a result, the degree of curing of the insulating varnish is inconsistent. Some areas are not dried, while others may be scorched, which seriously affects product quality and consistency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a power transformer varnish drying temperature forward and reverse conveying adjustment device.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a power transformer varnish drying temperature forward and reverse conveying adjustment device, comprising: Drying oven body; A drying position adjustment assembly includes a placement tray slidably connected to the drying chamber body, a sliding disc connected to the placement tray via a first rotating shaft, a transmission frame slidably connected to the sliding disc via a transmission block, an abutment disc fixedly connected to the transmission frame via a first spring, a base rotatably connected to the bottom of the first rotating shaft, an extension rod fixedly connected to the base via a support rod, a lead screw threadedly connected to the extension rod, a motor fixedly connected to the lead screw, and a transmission rod rotatably connected to the bottom of the sliding disc via a second rotating shaft. An electric heating chamber is fixedly connected to the main body of the drying oven.

[0006] In a preferred embodiment, the placement tray has a through hole, the transmission block is fixedly connected to the sliding tray, the transmission block is slidably connected to the transmission frame, the transmission frame is slidably connected to the through hole on the placement tray, and a partition is fixedly connected to the placement tray.

[0007] The above technical solution is adopted: when in use, a through hole is opened on the placement plate. The through hole is opened around the placement plate and communicates with the internal space of the hollow placement plate, which facilitates the sliding of the contact plate.

[0008] In a preferred embodiment, a limiting frame is fixedly connected inside the drying oven body, and a second spring is slidably connected inside the limiting frame. The second spring is fixedly connected to the transmission rod.

[0009] The above technical solution is adopted: by fixing a limit frame inside the drying oven body, it is easy to install an electric telescopic rod. The electric telescopic rod can drive the sliding plate and the second spring to move, thereby causing the transmission rod to move and the sliding disc to rotate.

[0010] In a preferred embodiment, an opening is provided on the side of the drying oven body near the limiting frame, and the transmission rod is slidably connected in the opening on the limiting frame.

[0011] The above technical solution is adopted: by opening an opening on the side of the drying oven body near the limiting frame, the transmission rod can slide in it, and the placement plate will not block the transmission rod.

[0012] In a preferred embodiment, a guide plate is fixedly connected inside the drying chamber, the motor is mounted on the guide plate, the lead screw is rotatably connected to the guide plate, and the extension rod is slidably connected to the guide plate.

[0013] The above technical solution is adopted: during use, a guide plate is fixedly connected inside the drying oven body, so that one end of the extension rod that is threaded to the lead screw is displaced on the guide plate and abuts against the guide plate, which can prevent the extension rod from being driven to rotate by the lead screw.

[0014] In a preferred embodiment, an electric telescopic rod is installed inside the limiting frame, and a sliding plate is fixedly connected to the output end of the electric telescopic rod. The sliding plate is fixedly connected to the end of the second spring away from the sliding disc.

[0015] The above technical solution is adopted: when in use, an electric telescopic rod is installed in the limiting frame to facilitate the adjustment of the sliding plate displacement, thereby causing the second spring to be driven to slide in the limiting frame.

[0016] In a preferred embodiment, the bottom of the drying oven body is equipped with casters, a third rotating shaft is rotatably connected to the drying oven body, a sealing door is rotatably connected to the third rotating shaft, and a handle is fixedly connected to the sealing door.

[0017] The above technical solution is adopted: when in use, universal wheels are provided to facilitate the movement of the drying unit towards the whole body.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention utilizes a motor-driven lead screw to move an extension rod, a base, and a placement tray in both directions within the drying chamber. An electric telescopic rod, via a transmission rod and a sliding disc, drives a first rotating shaft, causing the placement tray and transformer to rotate. This allows the transformer to alternately pass through different temperature zones, ensuring even contact with the heat source at all points, fundamentally solving the problem of localized overheating or under-drying. Simultaneously, the transmission frame drives the abutment disc, and combined with the elastic pressure of a first spring, automatically pushes and aligns the transformers within the placement tray. This accommodates transformers of different specifications while ensuring uniform heating of all transformers within a batch, reducing placement deviations that exacerbate quality differences. It effectively avoids the problem in existing technologies where some areas are not dried while others are burnt, severely impacting product quality and consistency. Attached Figure Description

[0019] Figure 1 This utility model provides an overall structural schematic diagram of a power transformer varnish drying temperature forward and reverse conveying adjustment device.

[0020] Figure 2 A schematic diagram of the placement tray structure of a power transformer varnish drying temperature forward and reverse conveying adjustment device provided by this utility model.

[0021] Figure 3 A schematic diagram of the third rotating shaft position of a power transformer varnish drying temperature forward and reverse conveying adjustment device provided by this utility model.

[0022] Figure 4 A schematic diagram of the cross-sectional structure of the placement tray of the power transformer varnish drying temperature forward and reverse conveying adjustment device provided by this utility model.

[0023] Figure 5 This utility model provides a schematic diagram showing the positional relationship between the electric telescopic rod and the sliding plate of a power transformer varnish drying temperature forward and reverse conveying adjustment device.

[0024] Figure 6 A schematic diagram showing the positional relationship of the partition plates in a power transformer varnish drying temperature forward and reverse conveying adjustment device provided by this utility model.

[0025] Legend: 1. Drying oven body; 11. Casters; 2. Drying position adjustment assembly; 21. Placing tray; 22. Base; 23. Support rod; 24. Extension rod; 25. Guide plate; 26. Transmission frame; 27. Motor; 28. Sliding plate; 29. ​​Transmission block; 210. Abutment plate; 211. First spring; 212. First rotating shaft; 213. Transmission rod; 214. Second spring; 215. Electric telescopic rod; 216. Lead screw; 217. Sliding plate; 218. Second rotating shaft; 219. Limiting frame; 3. Third pivot; 31. Handle; 32. Blocking door; 4. Electric heating chamber; 5. Partition. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 2 to 5 As shown, this utility model provides a technical solution: a power transformer varnish drying temperature forward and reverse conveying adjustment device, comprising: Drying oven body 1; The drying position adjustment assembly 2 includes a placement tray 21 slidably connected to the drying chamber body 1. A sliding tray 28 is connected to the placement tray 21 via a first rotating shaft 212. A transmission frame 26 is slidably connected to the sliding tray 28 via a transmission block 29. An abutment plate 210 is fixedly connected to the transmission frame 26 via a first spring 211. A base 22 is rotatably connected to the bottom of the first rotating shaft 212. An extension rod 24 is fixedly connected to the base 22 via a support rod 23. A lead screw 216 is threaded onto the extension rod 24. A motor 27 is fixedly connected to the lead screw 216. A transmission rod 213 is rotatably connected to the bottom of the sliding tray 28 via a second rotating shaft 218. An electric heating chamber 4 is fixedly connected to the drying oven body 1.

[0028] In this invention, multiple transformers are placed inside the placement tray 21, with the partition 5 providing guidance to initially hold the transformers in place. Then, the motor 27 is started, and through a screw drive, the rotational motion output by the motor 27 drives the lead screw 216 to rotate. The lead screw 216 converts the rotational motion into linear displacement of the extension rod 24, which in turn drives the chassis 22 to move synchronously through the rigid transmission of the support rod 23. Finally, the placement tray 21 slides into the drying chamber body 1. The operator holds the handle 31 and uses external force to move the sealing door 32 to block the drying chamber body 1. During this process, the second spring 214 is in the reset state. The heating wires inside the electric heating chamber 4 are energized to generate heat. When the transformer position needs to be adjusted, the electric telescopic rod 215 is activated. Its output linear motion drives the sliding plate 217 to move through a rigid transmission. The sliding plate 217 drives the transmission rod 213 to move through the elastic transmission of the second spring 214. The transmission rod 213 converts the linear displacement into the rotational motion of the sliding disk 28 (crank-slider type transmission), causing the sliding disk 28 to drive the first rotating shaft 212 to rotate. At the same time, when the sliding disk 28 rotates, it is connected to the transmission frame through the transmission block 29. The sliding transmission of 26 causes the transmission block 29 to slide within the transmission frame 26 and drive the transmission frame 26 to move. The transmission frame 26 drives the abutment plate 210 to move inward through the elastic transmission of the first spring 211, pushing the transformer neatly and aligning it within the placement plate 21. The rotational movement of the first rotating shaft 212 drives the placement plate 21 to rotate through rigid transmission, thereby causing the partition 5 to rotate along with the transformer. During this process, the abutment plate 210 continuously applies pressure to the transformer through the elastic deformation of the first spring 211 to prevent it from detaching.

[0029] like Figures 4 to 6 As shown, a through hole is provided on the placement plate 21, the transmission block 29 is fixedly connected to the sliding plate 28, the transmission block 29 is slidably connected to the transmission frame 26, and the transmission frame 26 is slidably connected to the through hole on the placement plate 21. A partition plate 5 is fixedly connected to the placement plate 21. In use, the through hole provided on the placement plate 21 is opened around the placement plate 21 and communicates with the internal space of the hollow placement plate 21, which facilitates the sliding of the abutment plate 210.

[0030] like Figure 4 As shown, a limiting frame 219 is fixedly connected inside the drying oven body 1. A second spring 214 is slidably connected inside the limiting frame 219. The second spring 214 is fixedly connected to the transmission rod 213. By fixing the limiting frame 219 inside the drying oven body 1, it is convenient to install the electric telescopic rod 215. The electric telescopic rod 215 can drive the sliding plate 217 and the second spring 214 to move, thereby causing the transmission rod 213 to move and causing the sliding disk 28 to rotate.

[0031] like Figures 4 to 5As shown, an opening is provided on the side of the drying oven body 1 near the limiting frame 219. The transmission rod 213 is slidably connected in the opening on the limiting frame 219. By providing an opening on the side of the drying oven body 1 near the limiting frame 219, the transmission rod 213 can slide in it, preventing the placement plate 21 from pressing against the transmission rod 213.

[0032] like Figures 4 to 5 As shown, a guide plate 25 is fixedly connected inside the drying oven body 1. A motor 27 is mounted on the guide plate 25. A lead screw 216 is rotatably connected to the guide plate 25. An extension rod 24 is slidably connected to the guide plate 25. In use, by fixing the guide plate 25 inside the drying oven body 1, one end of the extension rod 24, which is threaded to the lead screw 216, is displaced on the guide plate 25 and abuts against the guide plate 25, thus preventing the extension rod 24 from being rotated by the lead screw 216.

[0033] like Figures 4 to 5 As shown, an electric telescopic rod 215 is installed inside the limiting frame 219. The output end of the electric telescopic rod 215 is fixedly connected to a sliding plate 217. The sliding plate 217 is fixedly connected to the end of the second spring 214 away from the sliding disk 28. In use, by installing the electric telescopic rod 215 inside the limiting frame 219, it is easy to adjust the displacement of the sliding plate 217, thereby causing the second spring 214 to be driven to slide inside the limiting frame 219.

[0034] like Figures 1 to 3 As shown, a universal wheel 11 is installed at the bottom of the drying box body 1. A third rotating shaft 3 is rotatably connected to the drying box body 1. A sealing door 32 is rotatably connected to the third rotating shaft 3. A handle 31 is fixedly connected to the sealing door 32. When in use, the universal wheel 11 facilitates the movement of the drying box towards the body as a whole.

[0035] Working principle: like Figure 1-6 As shown, during use, multiple transformers are placed in the placement tray 21. The partition 5 provides a guiding function to initially lock the transformers in place. Then, the motor 27 is started, which drives the lead screw 216 to rotate. The lead screw 216 drives the extension rod 24 to move, which in turn drives the base 22 to move via the support rod 23. This causes the placement tray 21 to slide into the drying chamber body 1. The operator holds the handle 31 and uses external force to turn the sealing door 32 to block the drying chamber body 1. During this process, the second spring 214 is in the reset state; When the heating wires inside the heating chamber 4 are energized, the heating chamber 4 begins to heat up. When the position of the transformer needs to be adjusted, simply activate the electric telescopic rod 215. This causes the electric telescopic rod 215 to move the sliding plate 217, which in turn moves the second spring 214. The second spring 214 then moves the transmission rod 213, which in turn moves the sliding disk 28. The sliding disk 28 then rotates the first rotating shaft 212, causing the transmission block 29 to slide within the transmission frame 26. This causes the transmission frame 26 to move the abutment plate 210 inward, clamping the transformer. The abutment plate 210, fixed to the transmission frame 26 by the first spring 211, pushes the transformer neatly, aligning it within the placement plate 21. The placement plate 21, fixed by the first rotating shaft 212, rotates, causing the partition 5 to rotate along with the transformer. During this process, the abutment plate 210 continuously applies pressure to the transformer sliding with it through the elastic deformation of the first spring 211, preventing it from detaching.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A power transformer varnish drying temperature forward and reverse conveying adjustment device, characterized in that, include: Drying oven body (1); The drying position adjustment assembly (2) includes a placement plate (21) slidably connected to the drying box body (1). A sliding plate (28) is connected to the placement plate (21) via a first rotating shaft (212). A transmission frame (26) is slidably connected to the sliding plate (28) via a transmission block (29). An abutment plate (210) is fixedly connected to the transmission frame (26) via a first spring (211). A base plate (22) is rotatably connected to the bottom of the first rotating shaft (212). An extension rod (24) is fixedly connected to the base plate (22) via a support rod (23). A lead screw (216) is threaded onto the extension rod (24). A motor (27) is fixedly connected to the lead screw (216). A transmission rod (213) is rotatably connected to the bottom of the sliding plate (28) via a second rotating shaft (218). An electric heating chamber (4) is fixedly connected to the drying oven body (1).

2. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 1, characterized in that: The placement plate (21) has a through hole, the transmission block (29) is fixedly connected to the sliding plate (28), the transmission block (29) is slidably connected to the transmission frame (26), the transmission frame (26) is slidably connected to the through hole on the placement plate (21), and a partition plate (5) is fixedly connected to the placement plate (21).

3. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 1, characterized in that: The drying oven body (1) is fixedly connected to a limiting frame (219), and a second spring (214) is slidably connected inside the limiting frame (219). The second spring (214) is fixedly connected to the transmission rod (213).

4. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 1, characterized in that: An opening is provided on the side of the drying box body (1) near the limiting frame (219), and the transmission rod (213) is slidably connected in the opening on the limiting frame (219).

5. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 1, characterized in that: The drying box body (1) is fixedly connected to a guide plate (25), the motor (27) is mounted on the guide plate (25), the lead screw (216) is rotatably connected to the guide plate (25), and the extension rod (24) is slidably connected to the guide plate (25).

6. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 4, characterized in that: An electric telescopic rod (215) is installed inside the limiting frame (219). A sliding plate (217) is fixedly connected to the output end of the electric telescopic rod (215). The sliding plate (217) is fixedly connected to the end of the second spring (214) away from the sliding disk (28).

7. The power transformer varnish drying temperature forward and reverse conveying adjustment device according to claim 1, characterized in that: The bottom of the drying box body (1) is equipped with casters (11), a third rotating shaft (3) is rotatably connected to the drying box body (1), a sealing door (32) is rotatably connected to the third rotating shaft (3), and a handle (31) is fixedly connected to the sealing door (32).

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