Curing oven

Abstract

The utility model provides a curing oven, which belongs to the technical field of transformer curing and comprises a curing oven body and a hot air conveying mechanism arranged at the bottom of an inner cavity of the curing oven body, the hot air conveying mechanism comprises air cavities symmetrically arranged on two sides of the bottom of the curing oven body, and air pipes are arranged in air inlets arranged on the outer sides of the air cavities. Inner cavities of the air cavities are rotationally connected with rotating frames, penetrating openings matched with the rotating frames are formed in the two sides of the bottom of the curing furnace body, a plurality of air outlets are formed in the upper ends of the rotating frames, and sliding baffles are slidably connected to the positions, close to the air outlets, of the tops of the inner cavities of the rotating frames; a driving assembly used for driving the sliding baffle to move is further arranged in the rotating frame. Multi-direction dynamic airflow coverage is formed through a hot air conveying mechanism and an angle and flow dual-adjusting mechanism, the hot air conveying mechanism can vertically penetrate through gaps in the bottom of the transformer, a side face structure can be swept at an inclined angle, the opening and closing amplitude of each air outlet can be adjusted in real time so as to control the hot air flow, and partition adjustment and control of the air output are combined.

Description

Technical Field

[0001] This utility model belongs to the field of transformer curing technology, specifically relating to a curing oven. Background Technology

[0002] Transformer curing typically refers to the process of transforming materials (such as coatings, insulation layers, or protective layers) coated on the surface of a transformer from a liquid or semi-solid state to a completely solid state through heating or other means. This process is usually carried out in a specialized curing oven.

[0003] Existing curing ovens are mostly composed of an oven body with fixed air outlets at the bottom or top. Hot air is generated by an external hot air blower and discharged through these fixed air outlets. Although this design can basically meet the needs of curing operations, the dynamic airflow coverage is poor and it is limited in dealing with different transformer shape characteristics. Each time a curing operation is carried out, the air volume of each air outlet needs to be adjusted manually, which is cumbersome and inefficient. Utility Model Content

[0004] In view of this, the present invention provides a curing oven that can form a multi-directional dynamic airflow coverage through a hot gas conveying mechanism. This airflow can penetrate vertically through the bottom gap of the transformer and sweep the side structure at an inclined angle. The opening and closing amplitude of each air outlet can be adjusted in real time to control the hot air flow. Combined with the zoned control of the air output, this ensures that the coating of transformers of different specifications is heated evenly.

[0005] To solve the above-mentioned technical problems, this utility model provides a curing oven, including a curing oven body and a hot air conveying mechanism disposed at the bottom of its inner cavity. The hot air conveying mechanism includes air chambers symmetrically arranged on both sides of the bottom of the curing oven body. Each air chamber has an air pipe inside an air inlet on the outer side. Each air chamber has a rotating frame rotatably connected to its inner cavity. Both sides of the bottom of the curing oven body have through openings adapted to the rotating frame. The upper end of the rotating frame has multiple air outlets. A sliding baffle is slidably connected to the top of the inner cavity of the rotating frame near each air outlet. The rotating frame also has a driving component for driving the sliding baffle to move, thus forming a multi-directional dynamic airflow coverage. This airflow can penetrate vertically through the bottom gap of the transformer and sweep across the side structure at an inclined angle. The opening and closing amplitude of each air outlet can be adjusted in real time to control the hot air flow. Combined with the zoned control of the air flow, it ensures that the coating of transformers of different specifications is heated evenly. Through the dual adjustment mechanism of angle and flow, the hot air can be precisely adapted to the shape characteristics of the transformer, solving the problem of spatial limitation of traditional fixed nozzles. Flow adjustment avoids local overheating that could cause blistering or uneven curing of the coating.

[0006] The drive assembly includes lead screws that are rotatably connected to the rotating frame. The lead screws are threadedly connected to sliding baffles located in the same rotating frame, which serves to achieve rapid drive.

[0007] The drive assembly also includes a motor 1, which is respectively disposed at one end of the rotating frame. The output shaft of the motor 1 is fixedly connected to one end of the adjacent lead screw on the same side, thus providing a drive source for the lead screw.

[0008] It also includes an angle adjustment component, which is used to adjust the tilt angle of the rotating frame. The angle adjustment component includes fixed plates symmetrically arranged on both sides of one end of the curing furnace body. A double-headed worm gear is rotatably connected between the two fixed plates. The rotating frame is equipped with a worm wheel at the end near the double-headed worm gear. The two ends of the double-headed worm gear are respectively engaged with the adjacent worm wheel on the same side, which plays the role of rapid transmission.

[0009] The angle adjustment assembly also includes a second motor located on one side of the curing oven body near the double-headed worm gear. The output shaft of the second motor is fixedly connected to one end of the double-headed worm gear, thus providing a drive source for the double-headed worm gear.

[0010] The inner sides of the through opening are equipped with sealing gaskets, which are in contact with the exterior of the adjacent rotating frame on the same side, thus preventing a large amount of gas from leaking from the through opening and the rotating frame.

[0011] Both sides of the rotating frame are arc-shaped, and the center of the arc trajectory coincides with the axis of the rotating frame.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0013] 1. Hot air is delivered to the air chamber through the air pipe. The hot air is then transported through the air chamber and the rotating frame, and finally discharged through multiple distributed air outlets, thereby achieving the curing operation on the transformer. Then, the tilt angle of the rotating frame on both sides is adjusted simultaneously, so that the air outlets are precisely aligned with the area of ​​the transformer to be cured, forming a multi-directional dynamic airflow coverage. It can penetrate the bottom gap of the transformer vertically and sweep the side structure at an inclined angle. At the same time, it drives the sliding baffle to move along the slide groove, thereby adjusting the opening and closing range of each air outlet in real time to control the hot air flow. Combined with the zoned control of the air volume, it ensures that the coating of transformers of different specifications is heated evenly. Through the dual adjustment mechanism of angle and flow, the hot air can be precisely adapted to the shape characteristics of the transformer, solving the problem of the space limitation of traditional fixed nozzles. The flow adjustment avoids local overheating that could cause blistering or uneven curing of the coating.

[0014] 2. Once the motor starts, its output shaft rotates, driving the lead screw to rotate synchronously. Due to the influence of the threaded connection between the lead screw and the threaded hole, the sliding baffle moves along the slide groove, thereby adjusting the opening and closing range of each air outlet in real time to control the hot air flow.

[0015] 3. Start motor two, whose output shaft rotates to drive the double-headed worm gear to rotate. When the double-headed worm gear rotates, it synchronously adjusts the tilt angle of the two rotating frames through the worm wheel that meshes with it, so that the air outlet is accurately aligned with the area of ​​the transformer to be cured. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a curing oven according to the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the planar structure of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 5 This is an enlarged structural diagram of section B of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 100, curing oven body; 200, gas chamber; 201, gas pipe; 202, rotating frame; 203, gas outlet; 204, sliding baffle; 300, lead screw; 301, motor one; 400, fixing plate; 401, double-headed worm gear; 402, worm wheel; 403, motor two; 500, sealing gasket. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] This embodiment provides a curing oven, such as Figure 1-5As shown: The process includes a curing oven body 100 and a hot air conveying mechanism located at the bottom of its inner cavity. First, the curing oven body 100 is fixed to the designated position on the transformer curing production line. Then, a hoisting conveyor line passes through the upper end of the inner cavity of the curing oven body 100. The hot air conveying mechanism includes air chambers 200 symmetrically arranged on both sides of the bottom of the curing oven body 100. Each air chamber 200 has an air pipe 201 inside its outer air inlet, which connects to the outlet of an external heating fan. A rotating frame 202 is rotatably connected to the inner cavity of each air chamber 200. Rotary holes are provided at both ends of the inner cavity of the air chamber 200 to provide rotational support for the rotating frame 202. Both sides of the frame 202 are arc-shaped, and the center of the arc trajectory coincides with the axis of the rotating frame 202. The lower end of the rotating frame 202 is open and connected to the air chamber 200. Both sides of the bottom of the curing furnace body 100 are provided with through openings that are adapted to the rotating frame 202. The upper end of the rotating frame 202 is provided with multiple air outlets 203. The top of the inner cavity of the rotating frame 202 is slidably connected to each air outlet 203 near the top of the inner cavity. The top of the inner cavity of the rotating frame 202 is provided with a sliding groove for providing sliding support for the sliding baffle 204. The rotating frame 202 is also provided with a drive component for driving the sliding baffle 204 to move.

[0024] During operation, the hoisting conveyor line starts, driving the transformer to be cured to move at a constant speed within the curing furnace 100. The external heating fan's outlet delivers hot air to the air chamber 200 through the air pipe 201. The hot air is conveyed through the air chamber 200 and the rotating frame 202, and finally discharged through multiple distributed air outlets 203, thus achieving the curing operation of the transformer. Then, the tilt angle of the rotating frames 202 on both sides is adjusted synchronously, so that the air outlets 203 are precisely aligned with the area of ​​the transformer to be cured, forming a multi-directional dynamic airflow coverage. This airflow can penetrate vertically through the bottom gap of the transformer and sweep across the side structure at an inclined angle. At the same time, it drives the sliding baffle 204 to move along the slide groove, thereby adjusting the opening and closing range of each air outlet 203 in real time to control the hot air flow. Combined with the zoned control of the air volume, it ensures that the coating of transformers of different specifications is heated evenly. Through the dual adjustment mechanism of angle and flow, the hot air can be precisely adapted to the shape characteristics of the transformer, solving the problem of the spatial limitation of traditional fixed nozzles. The flow adjustment avoids local overheating that could cause blistering or uneven curing of the coating.

[0025] like Figure 2-5As shown, the drive assembly includes lead screws 300 rotatably connected to the rotating frame 202. Both ends of the inner cavity of the rotating frame 202 are provided with rotating holes for providing rotational support for the lead screws 300. The lead screws 300 are threadedly connected to sliding baffles 204 located in the same rotating frame 202. The lower end of each sliding baffle 204 is provided with threaded holes for threaded connection with the lead screws 300. The drive assembly also includes a motor 301 respectively disposed at one end of the rotating frame 202. The output shaft of the motor 301 is fixedly connected to one end of the lead screw 300 adjacent on the same side.

[0026] When motor 301 starts, its output shaft rotates, driving the lead screw 300 to rotate synchronously. Due to the influence of the threaded connection between the lead screw 300 and the threaded hole, the sliding baffle 204 moves along the slide groove, thereby adjusting the opening and closing range of each air outlet 203 in real time to control the hot air flow.

[0027] like Figure 1-5 As shown, it also includes an angle adjustment assembly, which is used to adjust the tilt angle of the rotating frame 202. The angle adjustment assembly includes fixed plates 400 symmetrically arranged on both sides of one end of the curing oven body 100. A double-headed worm gear 401 is rotatably connected between the two fixed plates 400. A worm wheel 402 is provided at one end of the rotating frame 202 near the double-headed worm gear 401. The two ends of the double-headed worm gear 401 are respectively meshed with the adjacent worm wheel 402 on the same side. The angle adjustment assembly also includes a second motor 403 arranged on one side of the curing oven body 100 near the double-headed worm gear 401. The output shaft of the second motor 403 is fixedly connected to one end of the double-headed worm gear 401.

[0028] When the motor 403 is started, its output shaft rotates to drive the double-headed worm gear 401 to rotate. When the double-headed worm gear 401 rotates, it synchronously adjusts the tilt angle of the two rotating frames 202 through the worm wheel 402 that meshes with it, so that the air outlet 203 is precisely aligned with the area of ​​the transformer to be cured.

[0029] like Figure 2-4 As shown, the inner side of the through opening is provided with a sealing gasket 500. The sealing gasket 500 is in contact with the outside of the adjacent rotating frame 202 on the same side. The sealing gasket 500 achieves dynamic sealing to prevent a large amount of gas from leaking from the through opening and the rotating frame 202.

[0030] The working principle of the curing oven provided by this utility model is as follows: During operation, the hoisting conveyor line starts and drives the transformer to be cured to move at a constant speed within the curing oven body 100. The external heating fan outlet delivers hot air to the air chamber 200 through the air pipe 201. The hot air is delivered through the air chamber 200 and the rotating frame 202, and finally discharged through multiple distributed air outlets 203, thereby realizing the curing operation of the transformer. The motor 403 is started, and its output shaft rotates to drive the double-headed worm gear 401 to rotate. When the double-headed worm gear 401 rotates, it synchronously adjusts the tilt angle of the rotating frames 202 on both sides through the worm wheel 402 meshing with it, so that the air outlets 203 are precisely aligned with the area of ​​the transformer to be cured, forming a multi-directional dynamic airflow coverage, which... It can penetrate vertically through the bottom gap of the transformer and sweep the side structure at an inclined angle. At the same time, the motor 301 starts, and its output shaft rotates to drive the lead screw 300 to rotate synchronously. Due to the influence of the threaded connection between the lead screw 300 and the threaded hole, the sliding baffle 204 moves along the slide groove, thereby adjusting the opening and closing range of each air outlet 203 in real time to control the hot air flow. Combined with the zoned control of the air volume, it ensures that the coating of transformers of different specifications is heated evenly. Through the dual adjustment mechanism of angle and flow, the hot air can be precisely adapted to the shape characteristics of the transformer, solving the problem of the space limitation of traditional fixed nozzles. The flow adjustment avoids local overheating that may cause the coating to bubble or cure unevenly, while the sealing gasket 500 achieves dynamic sealing to prevent a large amount of gas leakage.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A curing oven, characterized in that: The device includes a curing oven body (100) and a hot gas conveying mechanism disposed at the bottom of its inner cavity. The hot gas conveying mechanism includes air chambers (200) symmetrically disposed on both sides of the bottom of the curing oven body (100). Each air inlet on the outside of the air chamber (200) is provided with an air pipe (201). Each inner cavity of the air chamber (200) is rotatably connected to a rotating frame (202). Both sides of the bottom of the curing oven body (100) are provided with through openings adapted to the rotating frame (202). Each upper end of the rotating frame (202) is provided with multiple air outlets (203). Each top of the inner cavity of the rotating frame (202) is slidably connected to a sliding baffle (204) near each air outlet (203). The rotating frame (202) is also provided with a driving component for driving the sliding baffle (204) to move.

2. A curing oven as described in claim 1, characterized in that: The drive assembly includes lead screws (300) rotatably connected to the rotating frame (202), and the lead screws (300) are threadedly connected to sliding baffles (204) located in the same rotating frame (202).

3. A curing oven as described in claim 2, characterized in that: The drive assembly also includes a motor (301) disposed at one end of the rotating frame (202), and the output shaft of the motor (301) is fixedly connected to one end of the lead screw (300) on the same side.

4. A curing oven as described in claim 1, characterized in that: It also includes an angle adjustment component, which is used to adjust the tilt angle of the rotating frame (202). The angle adjustment component includes fixed plates (400) symmetrically arranged on both sides of one end of the curing furnace body (100). A double-headed worm gear (401) is rotatably connected between the two fixed plates (400). The rotating frame (202) is provided with a worm wheel (402) at one end near the double-headed worm gear (401). The two ends of the double-headed worm gear (401) are respectively meshed with the adjacent worm wheel (402) on the same side.

5. A curing oven as described in claim 4, characterized in that: The angle adjustment assembly also includes a second motor (403) located on one side of the curing furnace body (100) near the double-headed worm gear (401), and the output shaft of the second motor (403) is fixedly connected to one end of the double-headed worm gear (401).

6. A curing oven as described in claim 1, characterized in that: Each of the inner surfaces of the through opening is provided with a sealing gasket (500), and the sealing gasket (500) is in contact with the outside of the adjacent rotating frame (202) on the same side.

7. A curing oven as described in claim 1, characterized in that: Both sides of the rotating frame (202) are arc-shaped, and the center of the arc trajectory coincides with the axis of the rotating frame (202).

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