Rotary mechanism of vacuum drying oven

Abstract

This utility model discloses a rotating mechanism for a vacuum drying oven, belonging to the technical field of vacuum drying ovens. It is applied to the drying oven body, with a reducer installed at the bottom and a drive motor mounted on the side. The output shaft of the reducer extends to the bottom of the inner cavity of the drying oven and is fixedly connected to a turntable. A rotating column is fixedly connected to the top of the turntable, and a material placement mechanism is sleeved on the outer side of the rotating column. A U-shaped frame is fixedly connected to the inner wall of the drying oven, with multiple second mounting holes on both sides of the U-shaped frame. In this utility model, multiple perforated plates are used to support and place lithium iron phosphate material. Support rods and scraping rods are installed on the U-shaped frame, allowing the scraping rods to extend into the material on the perforated plates. When the reducer and drive motor drive the multiple perforated plates to rotate, the scraping rods scrape the lithium iron phosphate material on the perforated plates, causing the material accumulated at the bottom to turn over, ensuring drying quality and practicality.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying oven technology, and more specifically, to a rotating mechanism for a vacuum drying oven. Background Technology

[0002] Lithium iron phosphate (LFP) batteries are lithium-ion batteries that use lithium iron phosphate as the positive electrode material and carbon as the negative electrode material. During the production of lithium iron phosphate, it needs to be dried. A vacuum drying oven is a device that dries substances in a sealed vacuum environment. It is mainly used to dry heat-sensitive, easily decomposed, and easily oxidized substances. Its working principle is to use a vacuum pump to draw air and moisture, creating a vacuum state in the working chamber, lowering the boiling point of water, and thus accelerating the drying speed.

[0003] A search revealed that utility model patent CN222670566U discloses a vacuum drying device for the production of chemical reagent auxiliaries, including a drying chamber. The drying chamber has a door hinged to its side wall. A heat-conducting pipe is fixedly connected to the inner wall of the drying chamber, and several heating wires are fixedly connected inside the heat-conducting pipe. A fan is fixedly connected to the outer wall of the drying chamber, and the air inlet of the fan is fixedly connected to and communicates with the heat-conducting pipe. A temperature sensor is fixedly connected to the inner wall of the drying chamber, and a vacuum pump is fixedly connected to and communicates with the outer wall of the drying chamber. An adjustment structure is provided on the inner wall of the drying chamber. This patent, by setting an adjustment structure, allows for the adjustment of the position of the perforated plate according to the volume of the solid chemical reagent auxiliaries during drying, thereby facilitating the placement of solid materials of different sizes on the perforated plate for drying and expanding the applicability of the vacuum drying equipment.

[0004] However, the above patent still has the following shortcomings: when the material is placed on the perforated plate, it will accumulate, and the material accumulated inside will affect its drying quality. Therefore, we propose a rotating mechanism for a vacuum drying oven. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a rotating mechanism for a vacuum drying oven.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A rotating mechanism for a vacuum drying oven is provided, applied to the drying oven body. A reducer is installed at the bottom of the drying oven body, and a drive motor is installed on the side of the reducer. The output shaft of the reducer extends to the bottom of the inner cavity of the drying oven and is fixedly connected to a turntable. A rotating column is fixedly connected to the top of the turntable. A material feeding mechanism is sleeved on the outer side of the rotating column. A U-shaped frame is fixedly connected to the inner wall of the drying oven body. Multiple second mounting holes are opened on both sides of the U-shaped frame. Multiple sliders are movably sleeved on the inner side of the U-shaped frame. A support rod is fixedly connected to the end of the slider. Multiple scraping rods are fixedly connected to the bottom surface of the support rod. A second screw hole is opened on the slider. Multiple second wing screws are sleeved on the inner side of the second mounting hole, and the second wing screws are threaded into the second screw hole.

[0008] As a preferred embodiment of this utility model, the material placement mechanism includes multiple mounting collars movably sleeved on the outside of the rotating column and multiple first screw holes opened on the rotating column. Multiple perforated plates are fixedly sleeved on the outside of the mounting collars, and outer retaining rings are fixedly sleeved on the outside of each of the multiple perforated plates. Two first mounting holes are opened on the side of the mounting collars. A first wing screw is sleeved on the inner side of the first mounting hole, and the middle section of the first wing screw is threaded into the inner cavity of the first screw hole.

[0009] As a preferred embodiment of this utility model, the side of the rotating column is provided with two slots, and the inner wall of the mounting collar is provided with two blocks. The ends of the two blocks are respectively movably sleeved into the inner cavity of the slots, and the side of the blocks and the inner wall of the slots are in contact.

[0010] As a preferred embodiment of this utility model, the front of the drying chamber is hinged with a door, and the door is provided with a viewing window.

[0011] In a preferred embodiment of this utility model, the inner wall of the U-shaped frame and the side of the slider are in contact, and the outer diameter of the second wing screw and the inner diameter of the second mounting hole are equal.

[0012] In a preferred embodiment of this utility model, the outer diameter of the rotating column is equal to the inner diameter of the mounting collar, and the inner diameter of the first mounting hole is equal to the outer diameter of the first wing screw.

[0013] Compared with the prior art, the advantages of this utility model are as follows: In this utility model, multiple perforated plates are used to support and place lithium iron phosphate material, and support rods and scraping rods are installed on the U-shaped frame, so that the scraping rods extend into the material on the perforated plates. When the reducer and drive motor drive the multiple perforated plates to rotate, the scraping rods scrape the lithium iron phosphate material on the perforated plates, thereby turning over the material accumulated at the bottom, ensuring the quality of drying. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 3 This is a cross-sectional schematic diagram of the drying chamber of this utility model.

[0017] Figure 4 This is a schematic diagram of the mounting collar structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the slider of this utility model.

[0019] The following are the labels in the diagram: 1. Drying chamber; 2. Reducer; 3. Drive motor; 4. Turntable; 5. Rotating column; 6. First screw hole; 7. Material feeding mechanism; 8. U-shaped frame; 9. Second mounting hole; 10. Sliding block; 11. Support rod; 12. Scraper rod; 13. Second screw hole; 14. Second wing screw; 15. Mounting collar; 16. Perforated plate; 17. Outer retaining ring; 18. First mounting hole; 19. First wing screw; 20. Locking block; 21. Locking groove; 22. Chamber door; 23. Viewing window. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0023] Please see Figure 1-5 A rotating mechanism for a vacuum drying oven is applied to a drying oven body 1. A reducer 2 is installed at the bottom of the drying oven body 1, and a drive motor 3 is installed on the side of the reducer 2. The output shaft of the reducer 2 extends to the bottom of the inner cavity of the drying oven body 1 and is fixedly connected to a turntable 4. A rotating column 5 is fixedly connected to the top of the turntable 4. A material placement mechanism 7 is sleeved on the outer side of the rotating column 5. A U-shaped frame 8 is fixedly connected to the inner wall of the drying oven body 1. Multiple second mounting holes 9 are opened on both sides of the U-shaped frame 8. Multiple sliders 10 are movably sleeved on the inner side of the U-shaped frame 8. A support rod 11 is fixedly connected to the end of the slider 10. Multiple scraping rods 12 are fixedly connected to the bottom surface of the support rod 11. A second screw hole 13 is opened on the slider 10. Multiple second wing screws 14 are sleeved on the inner side of the second mounting hole 9. The second wing screws 14 are threaded into the second screw hole 13.

[0024] In this embodiment, the side of the drying chamber 1 is provided with equipment for vacuum drying, such as a vacuum pump and an electric heating tube. This is existing technology and will not be described in detail.

[0025] For details, please refer to Figures 2 to 4 The feeding mechanism 7 includes multiple mounting collars 15 movably sleeved on the outside of the rotating column 5 and multiple first screw holes 6 opened on the rotating column 5. Multiple perforated plates 16 are fixedly sleeved on the outside of the mounting collars 15, and outer retaining rings 17 are fixedly sleeved on the outside of each of the multiple perforated plates 16. Two first mounting holes 18 are opened on the side of the mounting collars 15. A first wing screw 19 is sleeved on the inner side of the first mounting hole 18, and the middle section of the first wing screw 19 is threaded into the inner cavity of the first screw hole 6.

[0026] In this embodiment, the bottom end of the scraping rod 12 extends to the inner side of the outer retaining ring 17 and contacts the top surface of the orifice plate 16.

[0027] For details, please refer to Figure 3 and Figure 4The rotating column 5 has two slots 21 on its side and two blocks 20 on the inner wall of the mounting ring 15. The ends of the two blocks 20 are respectively movably sleeved into the inner cavity of the slots 21, and the sides of the blocks 20 and the inner wall of the slots 21 are in contact.

[0028] In this embodiment, the mounting ring 15 fitted on the rotating column 5 is limited by the cooperation of the slot 21 and the block 20, so as to prevent the mounting ring 15 from rotating on the rotating column 5.

[0029] For details, please refer to Figure 1 The front of the drying chamber 1 is hinged with a door 22, and a viewing window 23 is provided on the door 22.

[0030] In this embodiment, lithium iron phosphate material is taken out and put in by opening the box door 22, and the drying status of lithium iron phosphate is controlled through the viewing window 23.

[0031] For details, please refer to Figures 3 to 5 The inner wall of the U-shaped frame 8 fits against the side of the slider 10, and the outer diameter of the second wing screw 14 is equal to the inner diameter of the second mounting hole 9.

[0032] In this embodiment, the stability of the slider 10 being fitted into the inner cavity of the U-shaped frame 8 is ensured, while the stability of the second wing screw 14 in installing the slider 10 is also ensured.

[0033] For details, please refer to Figure 3 and Figure 4 The outer diameter of the rotating column 5 is equal to the inner diameter of the mounting collar 15, and the inner diameter of the first mounting hole 18 is equal to the outer diameter of the first wing screw 19.

[0034] In this embodiment, the stability of the mounting collar 15 being fitted onto the rotating column 5 is ensured, while the stability of the first wing screw 19 fixing the mounting collar 15 is also ensured.

[0035] Working principle: In use, firstly, place the lithium iron phosphate material to be dried on the orifice plate 16, and then fit the mounting ring 15 on the inner side of the orifice plate 16 onto the outer side of the rotating column 5. Simultaneously, align the first screw hole 6 on the rotating column 5 with the first mounting hole 18 on the mounting ring 15, and insert the first wing screw 19 into the first mounting hole 18, so that the first wing screw 19 is threaded into the first screw hole 6. This installs the mounting ring 15, orifice plate 16, and outer retaining ring 17 onto the rotating column 5. Then, fit the slider 10 into the U-shaped frame 8, so that the scraping rod 12 at the bottom of the support rod 11 extends into the inner cavity of the outer retaining ring 17, and a second mounting ring 10 is then installed. The mounting hole 9 and the second screw hole 13 on the side of the slider 10 are aligned. The second wing screw 14 is inserted into the second mounting hole 9 and the second wing screw 14 is threaded into the second screw hole 13, thereby fixing the slider 10, the support rod 11 and the scraper rod 12. Then, following the above steps, multiple perforated plates 16 are installed on the rotating column 5, and multiple support rods 11 and scraper rods 12 are installed on the U-shaped frame 8. Finally, the reducer 2 and the drive motor 3 drive the turntable 4, the rotating column 5 and the perforated plates 16 to rotate. At the same time, the scraper rod 12 scrapes the lithium iron phosphate material on the perforated plates 16 so that the lithium iron phosphate material can be dried using the vacuum drying equipment.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A rotating mechanism of a vacuum drying oven, applied to a drying oven body (1), characterized in that: A speed reducer (2) is provided at the bottom of the drying chamber (1). A drive motor (3) is installed on the side of the speed reducer (2). The output shaft of the speed reducer (2) extends to the bottom of the inner cavity of the drying chamber (1) and is fixedly connected to a turntable (4). A rotating column (5) is fixedly connected to the top of the turntable (4). A material placement mechanism (7) is sleeved on the outer side of the rotating column (5). A U-shaped frame (8) is fixedly connected to the inner wall of the drying chamber (1). Multiple second mounting holes (9) are opened on both sides of the U-shaped frame (8). Multiple sliders (10) are movably sleeved on the inner side of the U-shaped frame (8). A support rod (11) is fixedly connected to the end of the slider (10). Multiple scraping rods (12) are fixedly connected to the bottom surface of the support rod (11). A second screw hole (13) is opened on the slider (10). Multiple second wing screws (14) are sleeved on the inner side of the second mounting hole (9). The second wing screws (14) are threaded into the second screw hole (13).

2. A rotating mechanism of a vacuum drying oven according to claim 1, characterized in that: The feeding mechanism (7) includes multiple mounting collars (15) movably sleeved on the outside of the rotating column (5) and multiple first screw holes (6) opened on the rotating column (5). Multiple hole plates (16) are fixedly sleeved on the outside of the mounting collars (15), and outer retaining rings (17) are fixedly sleeved on the outside of each of the multiple hole plates (16). Two first mounting holes (18) are opened on the side of the mounting collars (15). A first wing screw (19) is sleeved on the inside of the first mounting hole (18), and the middle section of the first wing screw (19) is threaded into the inner cavity of the first screw hole (6).

3. The rotating mechanism of a vacuum drying oven according to claim 2, characterized in that: The rotating column (5) has two slots (21) on its side and two blocks (20) on the inner wall of the mounting ring (15). The ends of the two blocks (20) are respectively movably sleeved into the inner cavity of the slot (21), and the side of the blocks (20) and the inner wall of the slot (21) are in contact.

4. The rotating mechanism of a vacuum drying oven according to claim 1, wherein: The front of the drying chamber (1) is hinged with a door (22), and the door (22) is provided with a viewing window (23).

5. The rotating mechanism of a vacuum drying oven according to claim 1, wherein: The inner wall of the U-shaped frame (8) and the side of the slider (10) are in contact with each other, and the outer diameter of the second wing screw (14) and the inner diameter of the second mounting hole (9) are equal.

6. A rotating mechanism of a vacuum drying oven according to claim 2, characterized in that: The outer diameter of the rotating column (5) is equal to the inner diameter of the mounting collar (15), and the inner diameter of the first mounting hole (18) is equal to the outer diameter of the first wing screw (19).

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