Disc type shearing and dispersing mechanism and stirrer

Abstract

The disc type shearing and dispersing mechanism comprises a fixing assembly and a dispersing part, the dispersing part comprises a stator shaft and a rotor shaft which are sleeved inside and outside, the two ends of the stator shaft penetrate through the rotor shaft and are rotationally connected with the rotor shaft, a first rotating disc is arranged on the lower portion of the stator shaft, and a second rotating disc is arranged on the lower portion of the rotor shaft. The first turntable and the second turntable are arranged at intervals; the fixing assembly is connected with the stator shaft and used for enabling the stator shaft to be fixedly arranged in use. According to the disc type shearing dispersion mechanism, the second rotating disc rotates along with the rotor shaft, shearing force can be generated between the second rotating disc and the first rotating disc, liquid in the area is sheared, and therefore the disc type shearing dispersion mechanism can achieve the shearing effect on the liquid on the premise that conventional mixing is achieved, and the purpose that one machine has multiple purposes is achieved; and the use cost can be reduced while the use space is saved.

Description

Technical Field

[0001] This utility model relates to the field of agitator technology, and in particular to a disc-type shearing and dispersing mechanism and agitator. Background Technology

[0002] Laboratory stirrers are instruments used in laboratories for mixing, stirring, dispersing, emulsifying, and other operations. Among them, top-mounted stirrers, with their replaceable impellers, can be applied to meet different experimental needs. Therefore, this type of stirrer is widely used in laboratories in fields such as chemical synthesis, pharmaceuticals, food, and cosmetics, for experiments such as organic synthesis reactions, polymerization reactions, and emulsification reactions.

[0003] The aforementioned mixing impeller mainly includes a mixing shaft and a mixing disc mounted on the mixing shaft. Currently, common mixing discs have multiple mixing blades arranged circumferentially, with each blade extending vertically and horizontally in a staggered manner to improve the dispersing effect of the mixing impeller on the material.

[0004] However, existing agitators can only perform simple mixing of materials. For high-shear mixing, a dedicated high-shear disperser is required. In environments with limited space, placing both an agitator and a high-shear disperser creates a space constraint; furthermore, having two machines increases the overall equipment cost. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a disc-type shear dispersion mechanism and agitator. The dispersion mechanism, in conjunction with a conventional agitator, can achieve the dispersion effect of a high-shear disperser on materials as much as possible, enabling a single agitator to perform the dual functions of a conventional agitator and a high-shear disperser. This saves space and reduces equipment procurement costs.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a disc-type shearing and dispersing mechanism, comprising a fixing component and a dispersing component.

[0007] The dispersive component includes an inner and outer stator shaft and a rotor shaft. The two ends of the stator shaft pass through the two ends of the rotor shaft and are rotatably connected to the rotor shaft. A first turntable is provided at the lower part of the stator shaft, and a second turntable is provided at the lower part of the rotor shaft. The first turntable and the second turntable are spaced apart.

[0008] The fixing component is connected to the stator shaft to fix the stator shaft in place during use.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The disc shearing dispersion mechanism of this application is an improvement on the conventional disc agitator. The rotor shaft and the second disc are configured similarly to those in the prior art disc agitators. The stator shaft and rotor shaft are rotatably connected, and the stator shaft is fixed during use. This means that when the rotor shaft rotates and the stator shaft is fixed, the first disc mounted on the stator shaft is also fixed. At this time, the second disc rotates with the rotor shaft, generating a shearing force between the second and first discs, which shears the liquid in the area. Therefore, the disc shearing dispersion mechanism of this application can achieve both conventional mixing and liquid shearing, maximizing the shearing effect of the agitator on the liquid compared to a high-shear disperser. This achieves multi-purpose functionality, saves space, and reduces costs.

[0011] Furthermore, the first turntable has multiple through slots, which are arranged in a ring around the axis of the stator shaft.

[0012] Furthermore, each channel extends from the center of the first turntable toward its circumference.

[0013] Furthermore, the second turntable has multiple notches and slots along its circumference, and each notch and slot is distributed in a ring around the axis of the rotor shaft.

[0014] Furthermore, each notch extends circumferentially toward its center from the second turntable.

[0015] Furthermore, a positioning element is provided between the rotor shaft and the stator shaft to limit the distance between the first turntable and the second turntable.

[0016] Furthermore, the positioning element is located at the lower end of the rotor shaft and extends partially out of the rotor shaft, with the upper surface of the first turntable in contact with the lower end of the positioning element.

[0017] Furthermore, the fixing assembly includes interconnected fixing parts and fasteners.

[0018] The fixing part includes a fixing sleeve and a locking bolt. The fixing sleeve is sleeved on the outside of the stator shaft, and the locking bolt is used to fix the stator shaft and the fixing sleeve.

[0019] The fastener includes two locking parts with adjustable spacing, which can be adjusted to secure it to the stirrer.

[0020] This application also provides a stirrer, including the above-mentioned disc shearing and dispersing mechanism, and further including a base and a rotatable stirring head disposed on the base.

[0021] The stirring head has a through hole, the stator shaft passes through the through hole and is spaced apart from the through hole, the rotor shaft is fixed to the stirring head, and the fixing assembly is used to fix the stator shaft to the machine base.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The disc shearing and dispersing mechanism of this application, due to the presence of the stator shaft, can only use a specific type of agitator, namely the top-mounted agitator in the prior art. Furthermore, the agitator must also meet the requirement of having a through hole on the agitator head (machine head), such as the top-mounted agitator of the Siyi Scientific Instruments Overstar2 and MS-40 models. The presence of the through hole allows the stator shaft and the machine head to be fixed, while the rotor shaft can be fixed to the agitator head. Thus, when the rotor shaft rotates with the agitator head, the stator shaft is fixed in place, so that the disc shearing and dispersing mechanism can achieve its intended use.

[0024] Furthermore, the base includes a mounting frame and a head, the head being lifted and connected on the mounting frame, the mixing head being disposed on the head, and the fixing component being connected to the head. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the stirrer of this utility model;

[0026] Figure 2 This is a schematic diagram of a disc-type shearing and dispersing mechanism of this utility model;

[0027] Figure 3 This is a schematic diagram of one connection between the rotor shaft and the stator shaft in the disc-type shearing and dispersing mechanism of this utility model;

[0028] Figure 4 This is a top view of the connection between a fixing component and the machine head in the disc-type shearing and dispersing mechanism of this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the second turntable in the disc-type shearing and dispersing mechanism of this utility model;

[0030] Figure 6 This is a schematic diagram of another structure of the second rotating disk in the disc-type shearing and dispersing mechanism of this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the first turntable in the disc-type shearing and dispersing mechanism of this utility model;

[0032] Figure 8 This is a schematic diagram of another structure of the first rotating disk in the disc-type shearing and dispersing mechanism of this utility model;

[0033] Figure 9 This is a schematic diagram of another fixing component in the disc-type shearing and dispersing mechanism of this utility model;

[0034] Figure 10 This is a structural schematic diagram of the fixing component corresponding to another fixing component in the disc-type shearing and dispersing mechanism of this utility model.

[0035] In the figure: fixed component 100, fixed part 110, locking bolt 111, fixed sleeve 112, fixed part 120, locking part 121, rotating bolt 1211, fixed block 1212, mounting rod 122, slide groove 1221, connecting seat 123, fixed plate 124, positioning rod 125, compression spring 126, dispersing part 200, rotor shaft 210, second turntable 220, notch groove 221, stator shaft 230, first turntable 240, through groove 241, bearing 250, positioning part 260, machine base 310, machine head 311, mounting bracket 312, stirring head 320. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] like Figure 1 As shown, this application discloses a stirrer, which is a top-mounted stirrer in the prior art. It basically includes a base 310 and a rotatable stirring head 320 mounted on the base 310. The base 310 includes a mounting frame 312 and a stirring head 311. The stirring head 311 is vertically connected to the mounting frame 312, and the stirring head 320 is mounted on the stirring head 311. However, the stirrer of this application needs to be installed in conjunction with a disc-type shearing and dispersing mechanism. Therefore, this stirrer has a specific structure. The stirring head 320 has a through hole, which is actually a vertical through hole that passes through both the stirring head 320 and the stirring head 311 as a whole. Examples include top-mounted stirrers such as the Overstar2 (manufactured by Guangzhou Guorui Scientific Instruments Co., Ltd.) and MS-40 (manufactured by Hangzhou Mio Instruments Co., Ltd.), as well as the OS20 and OS40 series from Beijing Dalong, top-mounted stirrers from IKA (Germany), and top-mounted stirrers from Shanghai Huxi, etc. This type of top-mounted agitator allows for the replacement of the agitator blades and is applicable to the installation of the disc shearing and dispersing mechanism provided in this application. Therefore, this application will not describe the specific structure and operating principle of the agitator, but only the connection relationship between the disc shearing and dispersing mechanism and the agitator.

[0038] To facilitate the installation of the disc-type shearing and dispersing mechanism and the agitator, the disc-type shearing and dispersing mechanism of this application will be specifically demonstrated below. Specifically, as follows... Figure 2As shown, a disc-type shearing and dispersing mechanism includes a fixing component 100 and a dispersing component 200. The dispersing component 200 includes a stator shaft 230 and a rotor shaft 210 with inner and outer sleeves. Both the stator shaft 230 and the rotor shaft 210 are vertically arranged. The stator shaft 230 is a solid shaft structure, and the rotor shaft 210 is a circular tube structure. The upper and lower ends of the stator shaft 230 respectively pass through the upper and lower ends of the rotor shaft 210, and the stator shaft 230 and the rotor shaft 210 are rotatably connected by at least one bearing 250. A first turntable 240 is provided at the lower part (or near the lower part) of the stator shaft 230. The first turntable 240 is a circular structure and is arranged perpendicular to the stator shaft 230. A second turntable 220 is provided at the lower part (or near the lower part) of the rotor shaft 210. The second turntable 220 is also a circular structure and is arranged perpendicular to the rotor shaft 210. The first turntable 240 and the second turntable 220 are arranged vertically and spaced apart. The fixing component 100 is connected to the stator shaft 230 to fix the stator shaft 230 in place during use.

[0039] When installing the disc-type shearing and dispersing mechanism and the agitator, the stator shaft 230 and rotor shaft 210 are fitted from bottom to top along the through hole until the upper end of the stator shaft 230 passes through the through hole and extends beyond the upper end of the machine head 311. Simultaneously, observe the position of the upper end of the rotor shaft 210 to ensure it is in contact with the agitator head 320 (clamp). After the rotor shaft 210 is in place, fix the rotor shaft 210 and the agitator head 320. Then, use the fixing assembly 100 to fix the stator shaft 230 and the machine head 311. In use, the rotor shaft 210 and the second turntable 220 rotate with the agitator head 320, while the stator shaft 230 remains fixed.

[0040] Considering the structural limitations of the agitator used in conjunction with the disc-type shearing and dispersing mechanism, the clamping range of the agitator head 320 (clamp) of this type of top-mounted agitator is generally a maximum of 10mm. Under this premise, the outer diameter of the rotor shaft 210 in this application is 8-10mm, preferably 8mm. Correspondingly, to adapt to the rotor shaft 210, the diameter of the stator shaft 230 is 5mm. This ensures that the vibration of the rotor shaft 210 during rotation will not significantly affect the stator shaft 230 at speeds below 2000 RPM. In this application, the diameter of the first turntable 240 is less than or equal to the diameter of the second turntable 220, and the diameter of the second turntable 220 (first turntable 240) is 45-50mm, preferably 50mm. The diameter of the second turntable 220 is not greater than 50mm because the machining accuracy dictates that if it is greater than 50mm, the dynamic balance problem of the second turntable 220 will seriously affect the vibration of the rotor shaft 210 during rotation.

[0041] In this application, the cooperation between the rotor shaft 210 and the second turntable 220 is equivalent to that of the disc-type agitator in the prior art, indicating that the cooperation between the rotor shaft 210 and the second turntable 220 can achieve the purpose of conventional agitation. The stator shaft 230 and the rotor shaft 210 are rotatably connected, and the stator shaft 230 is fixed during use, indicating that the rotor shaft 210 rotates while the stator shaft 230 is fixed. Therefore, the first turntable 240 set on the stator shaft 230 is fixed. At this time, the second turntable 220 rotates with the rotor shaft 210, and a "shearing force" is generated between the second turntable 220 and the first turntable 240, which shears the liquid in the area. Thus, the disc-type shearing dispersion mechanism of this application can achieve the shearing effect on the liquid while having conventional mixing capabilities. This allows the agitator equipped with the disc-type shearing dispersion mechanism to achieve the shearing effect on the liquid of a high-shear disperser, achieving the purpose of multiple uses in one machine, saving space, and reducing the cost of adoption.

[0042] In some embodiments of this application, to improve the shearing and dispersing effect of the disc-type shearing and dispersing mechanism on the liquid, a plurality of through slots 241 are provided on the first turntable 240, and each through slot 241 is arranged in a ring around the axis of the stator shaft 230. For example... Figure 7 , 8 As shown, the through groove 241 can adopt a rectangular through groove 241 structure, an arc-shaped through groove 241 structure, etc. In this application, an arc-shaped through groove 241 structure is preferred, and each through groove 241 is arranged in a spiral structure in a planar manner. The purpose of setting the through groove 241 on the first turntable 240 in this application is that when the second turntable 220 rotates, in addition to tearing the liquid between the second turntable 220 and the first turntable 240, an upward suction force is generated. Therefore, the through groove 241 can utilize the liquid supply between the second turntable 220 and the first turntable 240, and at the same time can disperse the liquid axially, further improving the shearing and dispersing effect of the disc shearing and dispersing mechanism on the liquid.

[0043] In some embodiments of this application, the through-channel 241 enables axial mixing of the liquid. To further enhance radial mixing, the through-channel 241 is oriented to extend circumferentially from the center of the first turntable 240. This approach increases the radial mixing effect and improves the shear mixing effect.

[0044] In some embodiments of this application, theoretically, the second turntable 220 can be a stirring disc from the prior art. However, this structure generally has a poor tearing effect on the liquid between the first turntable 240 and the second turntable 220. Therefore, to improve this "shearing force," such as... Figure 5 , 6As shown, this application provides multiple notches 221 along the circumference of the second turntable 220, with each notch 221 arranged in a ring around the axis of the rotor shaft 210. Similarly, the notches 221 can be rectangular, arc-shaped, or other structures. This application preferably uses arc-shaped notches 221, and each notch 221 is arranged in a planar spiral structure. Furthermore, the rotation direction of the second turntable 220 is opposite to the spiral direction of the through slots 241 provided on the first turntable 240. This structure maximizes the tearing force between the first turntable 240 and enhances the shearing effect.

[0045] In some embodiments of this application, when the second turntable 220 rotates, in addition to the upward suction force, it also has a downward suction force on the liquid above the second turntable 220. Therefore, in order to enable the liquid in other positions in the container to quickly enter the area between the first turntable 240 and the second turntable 220, each notch 221 of this application extends from the circumference of the second turntable 220 toward its center, so that the liquid can be quickly thrown out of the area (between the first turntable 240 and the second turntable 220) after tearing and shearing. Furthermore, through the notch 221 and the through groove 241 with specific structures, the liquid outside the area is drawn into the area for shearing, thereby improving the shearing and mixing effect of the liquid.

[0046] In some embodiments of this application, the distance between the first rotating disk and the second rotating disk 220 must be less than or equal to 0.4 mm, because the maximum distance for water molecule adhesion effect is 0.4 mm. Within this range, the adhesion force of water molecules can be used to tear materials. For this purpose, a positioning element 260 is provided between the rotor shaft 210 and the stator shaft 230. The positioning element 260 is used to limit the distance between the first rotating disk 240 and the second rotating disk 220. The positioning element 260 can be a mark respectively set on the stator shaft 230 and the rotor shaft 210. The mark facilitates the assembly of the stator shaft 230, the rotor shaft 210, and the bearing 250. Of course, the positioning element 260 can also be other structures, and the positioning element 260 can be set at any position on the stator shaft 230 and / or the rotor shaft 210, as long as it ensures that the distance between the first rotating disk 240 and the second rotating disk 220 is appropriate after the stator shaft 230 and the rotor shaft 210 are connected.

[0047] In some embodiments of this application, to facilitate the determination of the distance between the first turntable 240 and the second turntable 220, such as... Figure 3 As shown, the positioning element 260 of this application is a T1 Teflon stepped bushing. A stepped hole is provided at the lower end of the rotor shaft 210, and the positioning element 260 is embedded in the stepped hole, with a portion of the positioning element 260 extending out of the rotor shaft 210. The upper surface of the first turntable 240 contacts the lower end of the positioning element 260. By adjusting the distance of the stator component extending out of the lower end of the rotor shaft 210, the distance between the first turntable 240 and the second turntable 220 can be adjusted.

[0048] In some embodiments of this application, to fix the stator shaft 230 and the head 311, the fixing assembly 100 of this application includes a fixing part 110 and a fixing member 120 connected to each other. The fixing part 110 includes a fixing sleeve 112 and a locking bolt 111. The fixing sleeve 112 is sleeved on the stator shaft 230, and the locking bolt 111 is used to fix the stator shaft 230 and the fixing sleeve 112. Figure 2 , 9 As shown, the fixing sleeve 112 can be a structure set on the fixing member 120, or it can be a separate structure fixedly connected to the fixing member 120. In use, the stator shaft 230 passes through the fixing sleeve 112, and the locking bolt 111 passes through the fixing sleeve 112 and is threadedly connected to the fixing sleeve 112. By rotating the locking bolt 111, the stator shaft 230 can be pressed against the fixing sleeve 112, thereby achieving a fixed connection between the fixing sleeve 112 and the stator shaft 230. At this time, the fixing member 120 fixedly connected to the fixing sleeve 112 is sufficient to fix the stator shaft 230 and the machine head 311.

[0049] The agitator head 311 of this application has a rectangular structure. However, the width of the agitator head 311 varies depending on the model. Therefore, to allow the fixing member 120 to mate with different models of agitators, the fixing member 120 can utilize existing clamps, with one fixed clamp and one movable clamp, to secure the fixing member 120 to the agitator head 311. The fixing member 120 provided in this application includes two adjustable locking parts 121. The distance between the two locking parts 121 can be changed to accommodate different models of agitator head 311. Simultaneously, the two locking parts 121 respectively contact the agitator head 311, securing the fixing member 120 to the agitator head 311. The locking parts 121 of this application can have various structures, such as... Figure 1 , 2Figure 4 shows one type of locking part 121 structure. Specifically, the locking part 121 includes a threaded rotating bolt 1211 and a fixing block 1212, with the fixing block 1212 located on the outside of the machine head 311. The fixing member 120 also includes two mounting rods 122, which are vertically arranged. Each mounting rod 122 has a sliding groove 1221 extending along its length, and the rotating bolt 1211 passes through the sliding groove 1221. In use, the two mounting rods 122 are mounted on the machine head 311, and the rotating bolt 1211 is rotated so that the gap between the rotating bolt 1211 and the fixing block 1212 is greater than the thickness of the mounting rod 122. Then, the two locking parts 121 can move along the sliding groove 1221 as a whole, and the distance between the two locking parts 121 can vary. When the two locking parts 121 move to the position where the fixing block 1212 and the outer side of the machine head 311 are in contact, the rotating bolt 1211 rotates, causing the fixing block 1212 to move upward. Under the action of the rotating bolt 1211, the fixing block 1212 and the mounting rod 122 are locked together, thus completing the fixing of the entire fixing part 120 and the machine head 311.

[0050] like Figure 9 , 10 As shown, this application also provides another locking part 121 structure. The locking part 121 is a plate-shaped structure, with two locking parts 121 arranged opposite to each other. A fixing plate 124 is provided on the side of each locking part 121 away from the other locking part 121. Multiple positioning rods 125 are provided between the locking part 121 and the fixing plate 124. One end of the positioning rod 125 is fixed to the locking part 121, and the other end of the positioning rod 125 passes through the fixing plate 124 and slides with it. A compression spring 126 is provided on the positioning rod 125. The two fixing plates 124 are connected by a connecting seat 123, and the fixing sleeve 112 is fixed to the connecting seat 123. In use, an external force is applied to increase the distance between the two locking parts 121 until the two locking parts 121 can contact the outer side of the machine head 311 respectively. When the external force is removed, the two locking parts 121 can be fixed to the machine head 311 under the action of each compression spring 126, thus realizing the connection between the fixing part 120 and the machine head 311.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., 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 of this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A disc-type shearing and dispersing mechanism, characterized in that: Includes a fixing component (100) and a dispersing component (200), The dispersion component (200) includes an inner and outer stator shaft (230) and a rotor shaft (210). The two ends of the stator shaft (230) pass through the two ends of the rotor shaft (210) and are rotatably connected to the rotor shaft (210). A first turntable (240) is provided at the lower part of the stator shaft (230), and a second turntable (220) is provided at the lower part of the rotor shaft (210). The first turntable (240) and the second turntable (220) are spaced apart. The fixing component (100) is connected to the stator shaft (230) to fix the stator shaft (230) in use.

2. The disc-type shearing and dispersing mechanism according to claim 1, characterized in that: The first turntable (240) has multiple through slots (241), and each through slot (241) is arranged in a ring around the axis of the stator shaft (230).

3. The disc-type shearing and dispersing mechanism according to claim 2, characterized in that: Each through slot (241) extends from the center of the first turntable (240) toward its circumference.

4. The disc-type shearing and dispersing mechanism according to any one of claims 1 to 3, characterized in that: The second turntable (220) has multiple notches (221) along its circumference, and each notch (221) is distributed in a ring around the axis of the rotor shaft (210).

5. The disc-type shearing and dispersing mechanism according to claim 4, characterized in that: Each notch (221) extends circumferentially toward its center from the second turntable (220).

6. The disc-type shearing and dispersing mechanism according to claim 1, 2, 3 or 5, characterized in that: A positioning element (260) is provided between the rotor shaft (210) and the stator shaft (230), and the positioning element (260) is used to limit the distance between the first turntable (240) and the second turntable (220).

7. The disc-type shearing and dispersing mechanism according to claim 6, characterized in that: The positioning element (260) is disposed at the lower end of the rotor shaft (210) and extends partially out of the rotor shaft (210). The upper surface of the first turntable (240) is in contact with the lower end of the positioning element (260).

8. The disc-type shearing and dispersing mechanism according to claim 1, 2, 3, 5 or 7, characterized in that: The fixing assembly (100) includes a fixing part (110) and a fixing member (120) that are connected to each other. The fixing part (110) includes a fixing sleeve (112) and a locking bolt (111). The fixing sleeve (112) is sleeved on the outside of the stator shaft (230), and the locking bolt (111) is used to fix the stator shaft (230) and the fixing sleeve (112). The fastener (120) includes two locking parts (121) with adjustable spacing, which can be adjusted to fix the fastener to the stirrer.

9. A stirrer, characterized in that: The disc shearing and dispersing mechanism, including any one of claims 1-8, further includes a base (310) and a rotatable stirring head (320) disposed on the base (310). The stirring head (320) is provided with a through hole, the stator shaft (230) passes through the through hole and is spaced apart from the through hole, the rotor shaft (210) is fixed to the stirring head (320), and the fixing assembly (100) is used to fix the stator shaft (230) to the base (310).

10. The stirrer according to claim 9, characterized in that: The base (310) includes a mounting frame (312) and a head (311). The head (311) is connected to the mounting frame (312) in a lifting manner. The stirring head (320) is set on the head (311), and the fixing component (100) is connected to the head (311).

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