Horizontal microwave heating furnace for heating stator bars

Abstract

The utility model provides a horizontal type microwave heating furnace for stator bar heating belongs to heating furnace technical field has solved the problem that the existing technology uses electric trolley and transports stator bar to microwave heating furnace and is easy to damage. It includes the furnace body that one side is provided with the opening, the movable setting of opening has the furnace door, is provided with the drive mechanism for driving furnace door and moves along the length direction of furnace body on the furnace body, the side fixedly connected with support plate of furnace door near the furnace body, the bottom rotatoryly provided with first gyro wheel of support plate, places the rack for placing stator bar on the support plate. The drive mechanism of setting in the furnace body outside drive furnace door and support plate synchronous movement can place the rack and move out of the furnace body or move into the furnace body, avoid the related electronic device to enter the furnace body and cause damage.

Description

Technical Field

[0001] This utility model belongs to the field of heating furnace technology, specifically to a horizontal microwave heating furnace for heating stator bars. Background Technology

[0002] Stator bars are important components of large generators. They are characterized by robust structure, reliable insulation, and efficient heat dissipation. They can withstand tens of thousands of volts of high voltage and certain temperatures for a long time, ensuring stable operation of the generator.

[0003] Stator bars mainly consist of conductive strands, main insulation, anti-corona layer, and sealing layer. The last two layers are primarily anti-corona varnish (including low-resistance and high-resistance anti-corona varnish, referred to as low-resistance varnish and high-resistance varnish respectively) and red enamel varnish. The varnish is applied to the outer surface of the bars using roller coating or brushing methods, and then gradually air-dried at room temperature or dried with hot air to complete curing and impart its corresponding functions. Room temperature drying curing consumes almost no energy, but it is slow, requires a large footprint, and severely impacts production efficiency. Hot air drying curing technology is mature and widely adaptable, but it is energy-intensive and slow, leaving significant room for improvement.

[0004] Microwaves are high-frequency alternating electromagnetic waves that change direction billions of times per second (e.g., a household microwave oven operates at 2.45 GHz, changing its polarity 2.45 billion times per second). When polar molecules are exposed to microwave irradiation, they attempt to follow the rapid changes in the microwave field, constantly rotating, oscillating, and rubbing against each other. This intense molecular motion and friction, occurring billions of times per second, generates enormous heat, directly heating the material from within.

[0005] Compared to hot air heating, microwave heating offers advantages such as faster heating rates, lower energy consumption, and simultaneous heating of the material's internal and external surfaces, making it ideal for heating and curing coatings on stator bars. However, stator bars are heavy, and manually moving them in and out of the microwave oven is time-consuming and labor-intensive, and can easily cause damage by bumping into the oven body, potentially leading to safety accidents. To address these issues, existing technologies use electric trolleys to transport and place the stator bars in a rack. The electric trolley is dried and heated in the microwave oven along with the rack, and then removed from the rack after drying. However, electric trolleys are prone to malfunction or damage under microwave radiation and are unsuitable for use in microwave ovens. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this utility model is to provide a horizontal microwave heating furnace for heating stator wire rods. A drive mechanism located on the outside of the furnace body drives the furnace door and support plate to move synchronously, thereby allowing the placement rack to be moved out of or into the furnace body, preventing related electronic components from entering the furnace body and causing damage.

[0007] The technical solution adopted in this utility model is as follows: A horizontal microwave heating furnace for heating stator bars includes a furnace body with an opening on one side, a furnace door movably disposed at the opening, a drive mechanism for driving the furnace door to move along the length of the furnace body, a support plate fixedly connected to the side of the furnace door near the furnace body, a first roller rotatably disposed at the bottom of the support plate, and a placement rack for placing stator bars placed on the support plate.

[0008] Preferably, the drive mechanism includes several motors mounted on the furnace body, each motor connected to a lead screw, with the end of the lead screw away from the motor rotatably connected to a vertical plate fixed on the ground, and a connecting block threadedly connected to the lead screw fixed on the furnace door.

[0009] Preferably, four lead screws are provided and are respectively connected to the four corners of the vertical plate.

[0010] Preferably, a second roller is rotatably provided at the bottom of the furnace door.

[0011] Preferably, the placement rack includes several vertically arranged support columns, and a support frame is connected to the support columns.

[0012] Preferably, the upper surface of the support plate is provided with a positioning groove, and the bottom of the support column is provided with a positioning block that cooperates with the positioning groove.

[0013] Preferably, the upper surface of the support frame is provided with two spaced pads.

[0014] Preferably, the support frame is provided with a lifting ring.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: The drive mechanism located on the outside of the furnace body drives the furnace door and support plate to move synchronously, thereby moving the rack out of or into the furnace body and preventing related electronic components from entering the furnace body and causing damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure provided for an embodiment of the present utility model; Figure 2 A schematic diagram of the furnace door opening provided for an embodiment of this utility model; Figure 3 A schematic diagram of the placement rack structure provided in an embodiment of this utility model; Figure 4 A schematic diagram of the vertical plate structure provided for an embodiment of this utility model.

[0018] Reference numerals in the attached drawings: 100-Stator bar; 1-Furnace body; 2-Furnace door; 3-Connecting block; 4-Placement rack; 401-Positioning block; 402-Support column; 403-Support frame; 404-Lifting ring; 405-Padded strip; 5-Support plate; 6-First roller; 7-Positioning groove; 8-Motor; 9-Second roller; 10-Lead screw; 11-Vertical plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] The following is combined Figures 1-4 This utility model will be described in detail.

[0023] Example A horizontal microwave heating furnace for heating stator bars includes a furnace body 1 with an opening on one side, a furnace door 2 movably disposed at the opening, a driving mechanism for driving the furnace door 2 to move along the length of the furnace body 1 on the furnace body 1, a support plate 5 fixedly connected to the side of the furnace door 2 near the furnace body 1, a first roller 6 rotatably disposed at the bottom of the support plate 5, and a placement rack 4 for placing stator bars 100 is placed on the support plate 5.

[0024] A drive mechanism located on the outside of the furnace body 1 drives the furnace door 2 and the support plate 5 to move synchronously, thereby moving the placement rack 4 out of or into the furnace body 1, preventing related electronic components from entering the furnace body 1 and causing damage. Specifically, such as Figure 2 As shown, the drive mechanism drives the furnace door 2 away from the furnace body 1, thereby opening the opening of the furnace body 1. Simultaneously, one end of the support plate 5 is supported on the bottom inner side of the furnace body 1 by the first roller 6. A lifting device is used to hoist the placement rack 4, which holds the stator wire rods 100, onto the support plate 5. Then, the drive mechanism is controlled to drive the furnace door 2 to close the opening, and the placement rack 4 also moves into the furnace body 1. Figure 1 As shown, microwave heating and drying are performed. The first roller 6 provides support for the support plate 5, ensuring its smooth movement.

[0025] The drive mechanism includes several motors 8 mounted on the furnace body 1. Each motor 8 is connected to a lead screw 10. The end of the lead screw 10 furthest from the motor 8 is rotatably connected to a vertical plate 11 fixed to the ground. A connecting block 3, threadedly connected to the lead screw 10, is fixedly installed on the furnace door 2. The several motors 8 rotate synchronously via a controller, thereby driving the lead screw 10 to rotate. The lead screw 10, in conjunction with the connecting block 3, drives the furnace door 2 to move axially along the lead screw 10, thus opening and closing the furnace body 1. The vertical plate 11 supports the multiple lead screws 10, reducing deformation due to gravity. Support legs are provided at the bottom of the furnace body 1, raising it a certain distance off the ground to facilitate the installation of the motors 8 at the bottom of the furnace body 1.

[0026] Four lead screws 10 are provided and are respectively connected to the four corners of the vertical plate 11. For example... Figure 4 As shown, four lead screws 10 drive the furnace door 2, ensuring stable operation of the furnace door 2 and improving the fit between the furnace door 2 and the furnace body 1, thus reducing heat loss from the furnace body 1. The lifting and placement frame 4 is operated through the space between two lead screws 10.

[0027] A second roller 9 is rotatably mounted on the bottom of the furnace door 2. The second roller 9 supports the furnace door 2 as it rolls on the ground, thereby reducing the stress on the lead screw 10 and minimizing its deformation. Specifically, the second roller 9 is mounted on the connecting block 3 at the bottom of the furnace door 2.

[0028] The placement rack 4 includes several vertically arranged support columns 402, and a support frame 403 is connected to the support columns 402. The stator bars 100 are placed on the support frame 403 for drying.

[0029] The upper surface of the support plate 5 is provided with a positioning groove 7, and the bottom of the support column 402 is provided with a positioning block 401 that cooperates with the positioning groove 7. The placement rack 4 is placed into the positioning groove 7 by the positioning block 401, thereby positioning the placement rack 4 and preventing the stator rod 100 from hitting the furnace body 1 if the placement rack 4 is not placed in the correct position.

[0030] The upper surface of the support frame 403 is provided with two spaced pads 405. The pads 405 lift the stator bar 100 away from the support frame 403, preventing the paint at the end of the stator bar 100 from contacting the support frame 403.

[0031] A lifting ring 404 is provided on the support frame 403. The lifting ring 404 facilitates the hoisting and placement of the rack 4.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A horizontal microwave heating furnace for heating of stator bars, comprising a furnace body (1) provided with an opening on one side, characterized in that The opening is movably provided with a furnace door (2), the furnace body (1) is provided with a driving mechanism for driving the furnace door (2) to move along the length direction of the furnace body (1), the furnace door (2) is fixedly connected with a support plate (5) close to one side of the furnace body (1), the bottom of the support plate (5) is rotatably provided with a first roller (6), and the support plate (5) is placed with a placing rack (4) for placing a stator bar (100).

2. A horizontal microwave heating furnace for heating stator bars according to claim 1, characterized in that The driving mechanism comprises a plurality of motors (8) mounted on the furnace body (1), the motor (8) is connected with a screw rod (10), the screw rod (10) is rotatably connected with a vertical plate (11) fixed on the ground at the end away from the motor (8), and the furnace door (2) is fixedly provided with a connecting block (3) threadedly connected with the screw rod (10).

3. A horizontal microwave heating furnace for heating stator bars, according to claim 2, characterized in that, The screw rod (10) is provided with four ends and is connected with the four corners of the vertical plate (11) respectively.

4. A horizontal microwave heating furnace for heating stator bars according to claim 1, characterized in that, The bottom of the furnace door (2) is rotatably provided with a second roller (9).

5. A horizontal microwave heating furnace for heating stator bars according to claim 1, characterized in that, The upper surface of the support plate (5) is provided with a positioning groove (7), and the bottom of the support column (402) is provided with a positioning block (401) matched with the positioning groove (7).

6. A horizontal microwave heating furnace for heating stator bars according to claim 1, characterized in that, The upper surface of the support frame (403) is provided with two spaced-apart pad strips (405).

7. A horizontal microwave heating furnace for heating stator bars according to claim 1, characterized in that, The support frame (403) is provided with a lifting ring (404).

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