Dispersing mechanism and stirring machine

Abstract

The utility model relates to the field of lithium ion battery manufacturing and production, and discloses a dispersing mechanism and a blender, the dispersing mechanism comprises a dispersing shaft, a driving shaft, a bearing assembly, a mounting seat and a sealing element, the dispersing shaft is in transmission connection with the driving shaft, the driving shaft drives the dispersing shaft to rotate, the bearing assembly is mounted on the outer surface of the dispersing shaft, and the bearing assembly is located in the mounting seat; the mounting base is used for mounting the bearing assembly, and the sealing piece is located between the mounting base and the dispersing shaft and used for sealing a gap between the mounting base and the dispersing shaft. According to the application, the sealing element is arranged between the mounting seat and the dispersion shaft, and the gap between the dispersion shaft and the mounting seat is sealed through the sealing element, so that powder or other dust generated by the synchronizing wheel and the belt is prevented from entering the bearing assembly, the service life of the bearing assembly is prolonged, and abnormal sound generated in the rotation process of the dispersion shaft is reduced.

Description

Technical Field

[0001] The present application relates to the field of lithium-ion battery manufacturing and production, and in particular to a dispersion mechanism and a mixer. Background Art

[0002] In the lithium-ion slurry manufacturing process, stirring equipment is critical for ensuring slurry uniformity and stability. The dispersion shaft, a crucial auxiliary device for the stirring equipment, is responsible for breaking up aggregated particles within the slurry. Through high-speed rotation, the dispersion shaft effectively disperses aggregates of active material and conductive agent, continuously crushing secondary particles and refining the size of the stirred material. Furthermore, the stirring action of the dispersion shaft optimizes the arrangement of the active material, conductive agent, and binder, thereby maintaining the stability of the slurry components and maintaining an ideal suspension structure, effectively preventing segregation of slurry components due to agglomeration or sedimentation.

[0003] However, the existing dispersion shaft design has exposed some obvious disadvantages during use. There is no sealing structure between the bearing seat and the dispersion shaft. Once the powder generated by the friction between the synchronous wheel and the belt enters the bearing, it will cause adverse effects such as jamming of the bearing, thereby greatly affecting the stability and service life of the equipment. Especially during the long-term and high-intensity stirring process of the mixer, the dispersion shaft needs to maintain a high-speed rotation state for a long time, causing the bearing to bear a huge radial load, which can easily cause abnormal noise during the high-speed rotation of the bearing. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and provide a dispersing mechanism and a mixer.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0006] This application provides:

[0007] A decentralized organization comprising:

[0008] dispersion axis;

[0009] A driving shaft, the dispersion shaft being in driving connection with the driving shaft, and the driving shaft driving the dispersion shaft to rotate;

[0010] A bearing assembly, the bearing assembly being mounted on an outer surface of the dispersion shaft;

[0011] A mounting seat, wherein the bearing assembly is located inside the mounting seat, and the mounting seat is used for mounting the bearing assembly;

[0012] A sealing member is located between the mounting seat and the dispersion shaft, and is used to seal the gap between the mounting seat and the dispersion shaft.

[0013] Furthermore, the bearing assembly includes N first bearings and M second bearings, satisfying: N≥2, M≥2;

[0014] The first bearing and the second bearing are both mounted on the dispersion shaft, the first bearing is located at one end of the mounting seat, and the second bearing is located at an end of the mounting seat away from the first bearing.

[0015] Furthermore, the first bearing is a ball bearing or a roller bearing, and the second bearing is a ball bearing or a roller bearing.

[0016] Furthermore, the mounting seat includes a seat body, the bearing assembly is located in the seat body, a first end cover is fixedly mounted on the end of the seat body, and a second end cover is fixedly mounted on the end of the seat body away from the first end cover.

[0017] Furthermore, a first rotating support is installed on the drive shaft, and the first rotating support includes a first support bearing and a second support bearing installed on the drive shaft, and the transmission connection between the drive shaft and the dispersion shaft is located between the first support bearing and the second support bearing.

[0018] Furthermore, a third end cover is provided at the position of the second support bearing.

[0019] Furthermore, a second rotating support is provided at the power input end of the drive shaft, and the second rotating support includes a third support bearing and a fourth support bearing mounted on the drive shaft, and the third support bearing is spaced apart from the fourth support bearing.

[0020] Furthermore, a fourth end cover is provided at the fourth support bearing.

[0021] Furthermore, the mounting seat further comprises a mounting plate arranged on the outer surface of the seat body, the mounting plate comprises a plate body arranged on the outer surface of the seat body, and a plurality of evenly distributed mounting holes are opened on the plate body.

[0022] The present application provides a mixer comprising any of the above-mentioned dispersion mechanisms.

[0023] The present application sets a seal between the mounting seat and the dispersion shaft, and seals the gap between the dispersion shaft and the mounting seat through the seal, thereby preventing powder or other dust generated by the synchronous wheel and the belt from entering the bearing assembly, thereby improving the service life of the bearing assembly and reducing abnormal noise generated during the rotation of the dispersion shaft.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It shows a schematic diagram of the transmission connection state between the dispersion shaft and the drive shaft of the present application;

[0027] Figure 2 It shows a schematic structural diagram of the present invention when the dispersion shaft and the mounting seat are assembled;

[0028] Figure 3 Shows a schematic diagram of the cross-sectional structure of the dispersion shaft of the present application;

[0029] Figure 4 Shows the overall schematic diagram of the drive shaft of the present application;

[0030] Figure 5 Shows a schematic diagram of the cross-sectional structure of the drive shaft of the present application;

[0031] Figure 6 Shown is a side view schematic diagram of the mounting plate of the present application.

[0032] Description of main component symbols:

[0033] 100-dispersion shaft; 200-drive shaft; 300-bearing assembly; 310-first bearing; 320-second bearing; 400-mounting seat; 410-seat body; 420-first end cover; 430-second end cover; 440-mounting plate; 441-plate body; 442-mounting hole; 500-seal; 600-first rotating support member; 610-first support bearing; 620-second support bearing; 700-second rotating support member; 710-third support bearing; 720-fourth support bearing; 800-third end cover; 900-fourth end cover. DETAILED DESCRIPTION

[0034] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0037] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0038] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] Example:

[0040] During the manufacturing process of lithium-ion battery slurry, a stirring device is required to stir the slurry to ensure the uniformity and stability of the slurry. The dispersion shaft is an important auxiliary device of the stirring device, which is responsible for breaking up the slurry particles. Specifically, corresponding stirring blades can be installed on the dispersion shaft, so that the dispersion shaft drives the blades to rotate to break up the slurry.

[0041] Existing dispersion shafts are usually driven by the coordinated transmission relationship between a synchronous belt and a synchronous pulley. However, during the high-speed rotation of the dispersion shaft, a certain amount of powder will be generated due to the transmission friction between the synchronous belt and the synchronous pulley. Since there is no seal at the bearing of the dispersion shaft, these powders can easily enter the bearing shaft, thereby causing bearing wear and reducing the service life of the bearing, and abnormal noise can easily be generated as the dispersion shaft rotates at high speed. For this reason, the present application provides a seal 500 at the mounting seat 400, and seals the gap between the mounting seat 400 and the dispersion shaft 100 through the seal 500 to prevent dust or powder from entering the bearing assembly 300 in the mounting seat 400, thereby improving the service life of the bearing assembly 300.

[0042] The present application provides a dispersion mechanism, including a dispersion shaft 100, a drive shaft 200, a bearing assembly 300, a mounting seat 400 and a seal 500. The dispersion shaft 100 is transmission-connected to the drive shaft 200, the drive shaft 200 drives the dispersion shaft 100 to rotate, the bearing assembly 300 is installed on the outer surface of the dispersion shaft 100, the bearing assembly 300 is located inside the mounting seat 400, the mounting seat 400 is used for installing the bearing assembly 300, the seal 500 is located between the mounting seat 400 and the dispersion shaft 100, and the seal 500 is used to close the gap between the mounting seat 400 and the dispersion shaft 100.

[0043] See Figures 1 to 3 As shown, the bearing assembly 300 is installed on the dispersion shaft 100. Specifically, the inner ring of the bearing in the bearing assembly 300 is installed with the dispersion shaft 100, and the outer ring of the bearing in the bearing assembly 300 is installed with the mounting seat 400, that is, the mounting seat 400 is located on the outer surface of the dispersion shaft 100. The mounting seat 400 is mainly used for the installation of the bearing assembly 300, and a seal 500 is provided between the mounting seat 400 and the dispersion shaft 100. The gap between the mounting seat 400 and the dispersion shaft 100 is closed by the seal 500. Specifically, the seal 500 can be provided at the end of the mounting seat 400 facing the synchronous pulley, so as to prevent the powder generated by the friction between the synchronous belt and the synchronous pulley from entering the bearing assembly 300 inside the mounting seat 400.

[0044] Exemplarily, the seal 500 is a sealing ring, which may be a wool felt sealing ring, an O-ring, a V-ring, etc. Different types of sealing rings may be selected according to the actual working environment, temperature, sealing requirements, etc. The specific type and model of the sealing ring are not limited here.

[0045] Continue reading Figure 1As shown, in this embodiment, the dispersion shaft 100 and the drive shaft 200 are driven by a synchronous belt. Specifically, synchronous pulleys are installed on the dispersion shaft 100 and the drive shaft 200, and the two synchronous pulleys are connected by a synchronous belt, so that the drive shaft 200 can drive the dispersion shaft 100 to rotate through the synchronous belt.

[0046] The bearing assembly 300 includes N first bearings 310 and M second bearings 320 , satisfying: N≥2, M≥2.

[0047] The first bearing 310 and the second bearing 320 are both mounted on the dispersion shaft 100 . The first bearing 310 is located at one end of the mounting seat 400 , and the second bearing 320 is located at an end of the mounting seat 400 away from the first bearing 310 .

[0048] See Figure 3 As shown, since the dispersion shaft 100 needs the first bearing 310 and the second bearing 320 to withstand a large radial force during rotation, in order to meet the radial force requirements and prevent the dispersion shaft 100 from shaking during rotation, N can be set to 2 and M can also be set to 2, that is, two first bearings 310 and two second bearings 320 are installed on the dispersion shaft 100, and the first bearing 310 and the second bearing 320 are spaced apart, so that there is a certain span between the first bearing 310 and the second bearing 320, so that the dispersion shaft 100 can withstand a larger radial load and rotate more stably.

[0049] The first bearing 310 is a ball bearing or a roller bearing, and the second bearing 320 is a ball bearing or a roller bearing.

[0050] In this embodiment, the dispersion shaft 100 mainly bears a large radial load. For this purpose, the first bearing 310 and the second bearing 320 should be selected from bearings that can withstand large radial forces, such as deep groove ball bearings, angular contact bearings, etc. in ball bearings, and cylindrical roller bearings, tapered roller bearings, etc. in roller bearings.

[0051] For example, the first bearing 310 and the second bearing 320 can both be ball bearings; when the first bearing 310 is a roller bearing, the second bearing 320 can be a ball bearing; when the first bearing 310 is a ball bearing, the second bearing 320 can be a roller bearing. In practice, they can be selected according to needs. Generally speaking, the first bearing 310 and the second bearing 320 are the same type of bearings.

[0052] In this embodiment, the first bearing 310 and the second bearing 320 are both ball bearings. Furthermore, the first bearing 310 and the second bearing 320 are both deep groove ball bearings, and the first bearing 310 and the second bearing 320 are installed at the stepped shaft of the dispersion shaft 100, and the first bearing 310 and the second bearing 320 are positioned by the stepped surface.

[0053] The mounting seat 400 includes a seat body 410 , in which the bearing assembly 300 is located. A first end cover 420 is fixedly mounted on an end of the seat body 410 , and a second end cover 430 is fixedly mounted on an end of the seat body 410 away from the first end cover 420 .

[0054] See Figure 3 As shown, the interior of the seat body 410 has an accommodating cavity that can accommodate the first bearing 310 and the second bearing 320. Specifically, the outer rings of the first bearing 310 and the second bearing 320 are installed in contact with the inner wall of the inner cavity of the seat body 410. In order to prevent external dust and powder of the synchronous belt from entering the first bearing 310 and the second bearing 320 inside the seat body 410, a first end cover 420 and a second end cover 430 are respectively provided on both sides of the seat body 410, and the outlets at both ends of the seat body 410 are closed by the first end cover 420 and the second end cover 430.

[0055] In this embodiment, the first end cover 420 is located at the end close to the synchronous pulley, and the second end cover 430 is located at the end away from the synchronous pulley. In order to prevent dust or powder from entering the interior of the base body 410 through the gap between the first end cover 420 and the dispersion shaft 100, and the gap between the second end cover 430 and the dispersion shaft 100, corresponding annular grooves can be opened on the inner circles of the first end cover 420 and the second end cover 430, so that the seal 500 can be installed in the annular groove, thereby closing the gap between the first end cover 420 and the dispersion shaft 100, and the gap between the second end cover 430 and the dispersion shaft 100, thereby preventing external dust and powder from entering the base body 410 through the gap.

[0056] A first rotating support member 600 is installed on the drive shaft 200, and the first rotating support member 600 includes a first support bearing 610 and a second support bearing 620 installed on the drive shaft 200. The transmission connection between the drive shaft 200 and the dispersion shaft 100 is located between the first support bearing 610 and the second support bearing 620.

[0057] See Figure 1 、 Figure 4 and Figure 5 As shown, the transmission connection between the dispersion shaft 100 and the drive shaft 200 is the position where the synchronous pulley on the drive shaft 200 is installed, that is, Figure 5The purpose of setting the synchronous pulley between the first support bearing 610 and the second support bearing 620 is that if only one is used as a support, the end of the drive shaft 200 will swing during the high rotation process, and the rotation trajectory of the end of the drive shaft 200, that is, the position where the synchronous pulley is installed, is elliptical, which will cause the bearing here to wear quickly. The reason for this phenomenon is that the support is uneven. For this reason, the present application prevents this phenomenon from occurring by arranging bearings on both sides of the synchronous pulley, that is, arranging and installing the first support bearing 610 and the second support bearing 620.

[0058] In this embodiment, the first support bearing 610 and the second support bearing 620 are both ball bearings, specifically deep groove ball bearings.

[0059] A third end cover 800 is provided at the position of the second support bearing 620 .

[0060] Continue reading Figure 4 and Figure 5 As shown, the second support bearing 620 is located at the end of the drive shaft 200 , and the third end cover 800 is arranged at the position of the second support bearing 620 to prevent external dust from entering the second support bearing 620 , thereby improving the service life of the second support bearing 620 .

[0061] A second rotating support member 700 is provided at the power input end of the drive shaft 200 . The second rotating support member 700 includes a third support bearing 710 and a fourth support bearing 720 mounted on the drive shaft 200 . The third support bearing 710 and the fourth support bearing 720 are spaced apart.

[0062] See Figure 1 、 Figure 4 and Figure 5 As shown, the other end of the drive shaft 200 is connected to a motor (not shown in the figure), and the drive shaft 200 is driven to rotate by the motor. Specifically, a synchronous pulley is installed on the rotating shaft of the motor, and a synchronous pulley adapted thereto is also installed on the end of the drive shaft 200. The two synchronous pulleys are connected by a synchronous belt. In order to ensure that the rotation trajectory of the end portion of the drive shaft 200 connected to the motor transmission is not an ellipse, the drive shaft 200 at this position is provided with a second rotating support member 700. Specifically, the third support bearing 710 and the fourth support bearing 720 are both installed on the drive shaft 200, and the third support bearing 710 and the fourth support bearing 720 are spaced apart to ensure that the drive shaft 200 is more stable during rotation.

[0063] In this embodiment, the third support bearing 710 and the fourth support bearing 720 are both ball bearings, specifically deep groove ball bearings.

[0064] The fourth support bearing 720 is provided with a fourth end cover 900; Figure 4 and Figure 5 As shown, the purpose of providing the fourth end cover 900 at the position of the fourth support bearing 720 is to prevent external dust from entering the fourth support bearing 720. To this end, the service life of the fourth support bearing 720 can be extended to a certain extent by providing the fourth end cover 900.

[0065] The mounting seat 400 further includes a mounting plate 440 disposed on the outer surface of the seat body 410 . The mounting plate 440 includes a plate body 441 disposed on the outer surface of the seat body 410 . The plate body 441 is provided with a plurality of evenly distributed mounting holes 442 .

[0066] participate Figure 6 As shown, the base body 410 is fixed by the mounting plate 440 to thereby fix the dispersion shaft 100, so that the dispersion shaft 100 can only rotate but cannot move. In this embodiment, the plate body 441 and the base body 410 are integrally formed, and the mounting hole 442 on the plate body 441 can be fixed at a preset position by bolts to complete the fixed installation.

[0067] Continue reading Figure 6 As shown, four mounting holes 442 are provided on the plate body 441 , and the mounting holes 442 are evenly distributed. Specifically, the mounting holes 442 may be circular in shape. Furthermore, in order to facilitate installation and adjustment, the mounting holes 442 may be waist-groove shaped.

[0068] The present application also provides a mixer, including any of the above-mentioned dispersion mechanisms. Since the mixer includes the dispersion mechanism, the technical effects of the dispersion mechanism are also included. The specific technical effects will not be described in detail here. For details, please refer to the above-mentioned dispersion mechanism section.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0070] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A dispersion mechanism, characterized in that: include: dispersion axis (100); A driving shaft (200), the dispersion shaft (100) being in transmission connection with the driving shaft (200), and the driving shaft (200) driving the dispersion shaft (100) to rotate; A bearing assembly (300), the bearing assembly (300) being mounted on the outer surface of the dispersion shaft (100); A mounting seat (400), the bearing assembly (300) is located inside the mounting seat (400), and the mounting seat (400) is used for mounting the bearing assembly (300); A sealing member (500) is located between the mounting seat (400) and the dispersion shaft (100), and the sealing member (500) is used to seal the gap between the mounting seat (400) and the dispersion shaft (100).

2. The dispersion mechanism according to claim 1, characterized in that: The bearing assembly (300) includes N first bearings (310) and M second bearings (320), satisfying: N≥2, M≥2; The first bearing (310) and the second bearing (320) are both mounted on the dispersion shaft (100), the first bearing (310) being located at one end of the mounting seat (400), and the second bearing (320) being located at an end of the mounting seat (400) away from the first bearing (310).

3. The dispersion mechanism according to claim 2, characterized in that: The first bearing (310) is a ball bearing or a roller bearing, and the second bearing (320) is a ball bearing or a roller bearing.

4. The dispersion mechanism according to claim 1, wherein: The mounting seat (400) includes a seat body (410), the bearing assembly (300) is located in the seat body (410), a first end cover (420) is fixedly mounted on the end of the seat body (410), and a second end cover (430) is fixedly mounted on the end of the seat body (410) away from the first end cover (420).

5. The dispersion mechanism according to claim 1, characterized in that: A first rotating support member (600) is mounted on the drive shaft (200), and the first rotating support member (600) includes a first support bearing (610) and a second support bearing (620) mounted on the drive shaft (200), and a transmission connection between the drive shaft (200) and the dispersion shaft (100) is located between the first support bearing (610) and the second support bearing (620).

6. The dispersion mechanism according to claim 5, characterized in that: A third end cover (800) is provided at the position of the second support bearing (620).

7. The dispersion mechanism according to claim 1, characterized in that: A second rotating support member (700) is provided at the power input end of the drive shaft (200), and the second rotating support member (700) includes a third support bearing (710) and a fourth support bearing (720) mounted on the drive shaft (200), and the third support bearing (710) and the fourth support bearing (720) are spaced apart.

8. The dispersion mechanism according to claim 7, characterized in that: A fourth end cover (900) is provided at the fourth support bearing (720).

9. The dispersion mechanism according to claim 4, characterized in that: The mounting seat (400) further includes a mounting plate (440) disposed on the outer surface of the seat body (410), wherein the mounting plate (440) includes a plate body (441) disposed on the outer surface of the seat body (410), and a plurality of evenly distributed mounting holes (442) are provided on the plate body (441).

10. A mixer, characterized in that: The dispersion mechanism comprises the dispersion mechanism according to any one of claims 1 to 9.

Images