Small ball milling equipment for laboratory

Abstract

The utility model belongs to the technical field of ceramic production equipment, and particularly relates to small ball milling equipment for a laboratory. The device comprises a mounting frame, a ball milling assembly mounted on the mounting frame, a first supporting transmission assembly, a second supporting transmission assembly, a belt transmission assembly and a driving assembly, the first supporting transmission assembly and the second supporting transmission assembly are oppositely arranged in the axial direction of the ball milling assembly, located on the front side and the rear side of the ball milling assembly correspondingly and both in transmission connection with the ball milling assembly. The driving assembly is connected with the first supporting transmission assembly through the belt transmission assembly, drives the first supporting transmission assembly to rotate and drives the ball milling assembly to rotate in the axial direction of the ball milling assembly. In the small ball-milling equipment for the laboratory, the rotating shaft structure ensures the stability of the equipment and the convenience in maintenance, and can axially limit to prevent displacement of components; the rubber sleeve is easy to replace, cost is reduced, friction force is increased, and rotating speed is stable; in addition, the supporting transmission assembly is flexible in configuration and can be adjusted according to the ball milling requirement and the assembly size, and the universality and applicability of the equipment are enhanced.

Description

Technical Field

[0001] This utility model belongs to the technical field of ceramic production equipment, and in particular relates to a small ball mill for laboratory use. Background Technology

[0002] In laboratory research and small-scale production processes, it is often necessary to grind various materials to obtain the required powders or slurries. Ball milling equipment is widely used due to its efficient and convenient grinding characteristics. However, existing ball milling equipment has some problems that urgently need to be solved when applied to small-scale laboratory scenarios.

[0003] Traditional large-scale ball milling equipment is bulky, complex in structure, and consumes a lot of electricity, making it difficult to adapt to the limited space and flexible experimental needs of laboratories. Laboratories need a miniaturized ball milling device that can meet the grinding requirements of different materials, is easy to operate and maintain, and possesses high stability and reliability.

[0004] In some existing small-scale ball milling equipment, the transmission structure design is not reasonable enough, leading to problems such as unstable transmission and severe component wear during the ball milling process. For example, the transmission method used in some equipment cannot effectively buffer the impact force during ball milling, which shortens the service life of the equipment and also affects the consistency and reliability of the ball milling effect. In addition, the assembly and disassembly of components in existing small-scale ball milling equipment is often not convenient. When a component wears out or fails, the entire equipment needs to be disassembled in a complicated manner for repair or replacement. This not only increases the maintenance cost and difficulty of the equipment, but also affects the normal conduct of experiments.

[0005] In addition, existing small ball milling equipment is also insufficient in terms of versatility and applicability. Different experiments may require processing ball milling components of different sizes and types, and existing equipment is often difficult to adjust flexibly according to specific needs, limiting its application in various experimental scenarios.

[0006] Therefore, this utility model provides a novel small ball milling device for laboratory use to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a small ball mill for laboratory use. In this small ball mill, the rotating shaft structure ensures the stability of the equipment and facilitates maintenance, and can limit the displacement of components by axial positioning; the rubber sleeve is easy to replace, reducing costs and increasing friction to ensure stable rotation speed; in addition, the support and transmission components are flexibly configured and can be adjusted according to the ball milling requirements and component sizes, enhancing the versatility and applicability of the equipment.

[0008] The present invention adopts the following technical solution: a small ball milling device for laboratory use, comprising a mounting frame, a ball milling assembly mounted on the mounting frame, a first support transmission assembly, a second support transmission assembly, a belt transmission assembly, and a drive assembly;

[0009] The first support transmission assembly and the second support transmission assembly are arranged opposite to each other along the axial direction of the ball mill assembly, respectively located on the front and rear sides of the ball mill assembly, and are both connected to the ball mill assembly in a transmission manner.

[0010] The drive assembly is connected to the first support transmission assembly via the belt drive assembly, driving the first support transmission assembly to rotate, which in turn causes the ball mill assembly to rotate along its axial direction.

[0011] Both the first support transmission assembly and the second support transmission assembly include:

[0012] Rotating shaft;

[0013] At least one set of nylon baffle components, each set of nylon baffle components consists of two nylon baffles spaced apart along the axial direction, the nylon baffles being sleeved on the rotating shaft; and the area between the two nylon baffles in each set of nylon baffle components corresponds to the installation position of the ball mill assembly;

[0014] At least one layer of rubber sleeve is disposed between the two nylon baffles in each group of the nylon baffle components, and is successively sleeved on the rotating shaft;

[0015] A spacer sleeve is disposed between two adjacent sets of the nylon baffle components and sleeved on the rotating shaft;

[0016] The rotating shaft is provided with a fixed limiting member at one end near the belt drive assembly and a locking nut at the other end away from the belt drive assembly. The nylon baffle is axially limited by the fixed limiting member and the locking nut.

[0017] Furthermore, the fixing limiting member is welded and installed on the rotating shaft.

[0018] Furthermore, a first elongated hole is provided at the connection between the drive component and the mounting bracket, and the first elongated hole is used to adjust the installation position of the drive component.

[0019] Furthermore, bearings with mounting brackets are respectively provided at the left and right ends of the rotating shaft, and the bearings with mounting brackets are mounted on the mounting frame to support the left and right ends of the rotating shaft.

[0020] A second elongated hole is provided at the connection between the bearing and the mounting bracket. The second elongated hole is used to adjust the installation position of the rotating shaft.

[0021] Furthermore, the drive component includes a motor;

[0022] The belt drive assembly includes a small pulley installed at the output end of the motor, a large pulley installed on the rotating shaft of the first support drive assembly, and a V-belt installed between the small pulley and the large pulley.

[0023] Furthermore, the small pulley, the large pulley, and the V-belt are all equipped with protective covers.

[0024] Furthermore, two locking nuts are arranged side by side;

[0025] And / or, a nylon ring is fitted between the locking nut and the rotating shaft.

[0026] Furthermore, the ball mill assembly includes:

[0027] A tank containing grinding balls and mud;

[0028] A can opening plug is provided at the open end of the can body to seal the can opening.

[0029] Furthermore, the open end of the tank body is provided with a tapered hole;

[0030] The outer surface of the can stopper is a conical surface that matches the conical hole at the opening end of the can body, and a polytetrafluoroethylene sealing layer is wrapped around the outer surface of the conical surface.

[0031] Furthermore, the ball mill assembly is provided in at least two sets.

[0032] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0033] The working principle of the small ball mill for laboratory use in this utility model is as follows:

[0034] The drive assembly, acting as a power source, transmits power to the first support transmission assembly via a belt drive. As the rotating shaft rotates, the components mounted on it work in concert. Nylon baffles rotate with the shaft, and a rubber sleeve is positioned between the two nylon baffles in each set. This rubber sleeve, through contact with the ball mill assembly, utilizes friction to drive the assembly to rotate axially; furthermore, its elasticity buffers any impact forces that may be experienced by the ball mill assembly during rotation. Spacer sleeves located between adjacent sets of nylon baffles, along with fixing and locking nuts at both ends of the rotating shaft, ensure the relative position of the nylon baffles on the rotating shaft remains stable, maintaining the orderly operation of the entire transmission support structure. The rotating shaft of the second support transmission assembly also features nylon baffles, rubber sleeves, and spacer sleeves of the same structure. These components, working in conjunction with the first support transmission assembly, support the ball mill assembly and ensure its stability during rotation.

[0035] In this small laboratory ball mill, the structural design of the rotating shaft ensures stable operation and convenient maintenance. A fixed limiting component is installed at one end of the rotating shaft, and a locking nut is fitted at the other end, along with a spacer sleeve, to axially limit the nylon baffle component, thus securing the nylon baffle to the rubber sleeve on the rotating shaft. During operation, this structure effectively prevents axial displacement of the nylon baffle, rubber sleeve, and ball mill components, ensuring the stability of the support and transmission structure, extending the equipment's lifespan, and guaranteeing continuous and precise ball milling operations. Furthermore, using the locking nut to fix one end of the rotating shaft facilitates the assembly and disassembly of the nylon baffle, rubber sleeve, and spacer sleeve, reducing the difficulty of equipment maintenance.

[0036] Meanwhile, during long-term use, the rubber sleeve is prone to wear due to frequent friction with the ball mill assembly. However, only the rubber sleeve needs to be replaced; there is no need to disassemble the entire support and transmission assembly, which greatly reduces maintenance costs and improves the ease of use and maintenance efficiency of the equipment. Furthermore, the rough surface of the rubber sleeve increases friction when in contact with the ball mill assembly, stably driving the ball mill assembly to rotate, preventing slippage, ensuring stable rotation speed of the ball mill assembly, and improving the consistency and reliability of the ball milling effect.

[0037] Furthermore, the support and transmission components are flexibly configured, featuring at least one set of nylon baffles, at least one layer of rubber sleeves, and spacer sleeves, which can be adjusted according to the ball mill requirements and the size of the ball mill assembly. For example, for larger ball mill assemblies, the number of rubber sleeve layers can be reduced, and the length of the spacer sleeves can be adjusted, enhancing the equipment's versatility and applicability. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a small ball mill for laboratory use in a specific embodiment of this utility model;

[0040] Figure 2 for Figure 1 Top view;

[0041] Figure 3 for Figure 2 Sectional view at point AA;

[0042] Figure 4 for Figure 1 Schematic diagram of the ball mill assembly structure;

[0043] The components include: mounting bracket 1, first elongated hole 10; ball mill assembly 2, tank body 20, conical hole 201, grinding ball 21, mud 22, tank mouth plug 23, conical surface 231; first support transmission assembly 3, rotating shaft 30, nylon baffle 31, rubber sleeve 32, spacer sleeve 33, seated bearing 34; second support transmission assembly 4; belt transmission assembly 5, small pulley 50, large pulley 51, V-belt 52; drive assembly 6; fixed limiting component 7; and locking nut 8. Detailed Implementation

[0044] 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The present invention will be described in detail with reference to specific embodiments:

[0046] like Figure 1-4 As shown, this utility model provides a small ball mill device for laboratory use, which includes a mounting frame 1, a ball mill assembly 2 mounted on the mounting frame 1, a first support transmission assembly 3, a second support transmission assembly 4, a belt transmission assembly 5, and a drive assembly 6.

[0047] The first support transmission assembly 3 and the second support transmission assembly 4 are arranged opposite to each other along the axial direction of the ball mill assembly 2, respectively located on the front and rear sides of the ball mill assembly 2, and are both connected to the ball mill assembly 2 in a transmission manner.

[0048] The drive assembly 6 is connected to the first support transmission assembly 3 via the belt drive assembly 5, driving the first support transmission assembly 3 to rotate, which in turn drives the ball mill assembly 2 to rotate along its axial direction. Therefore, the first support transmission assembly 3 plays a transmission and support role, while the second support transmission assembly 4 only plays a support role.

[0049] Both the first support transmission assembly 3 and the second support transmission assembly 4 include:

[0050] Rotating shaft 30;

[0051] At least one set of nylon baffle components, each set of nylon baffle components consisting of two nylon baffles 31 spaced apart along the axial direction, the nylon baffles 31 being sleeved on the rotating shaft 30; and the area between the two nylon baffles 31 in each set of nylon baffle components corresponds to the installation position of the ball mill assembly 2; in this embodiment, two sets of nylon baffle components are provided, and correspondingly, at least two sets of ball mill assemblies 2 are provided, which can simultaneously grind different materials, etc.

[0052] At least one layer of rubber sleeve 32 is disposed between the two nylon baffles 31 of each group of nylon baffle components, and is successively sleeved on the rotating shaft 30;

[0053] Spacer sleeve 33 is disposed between two adjacent sets of the nylon baffle pieces and sleeved on the rotating shaft 30;

[0054] The rotating shaft 30 has a fixing limiting member 7 at one end near the belt drive assembly 5 and a locking nut 8 at the other end away from the belt drive assembly 5. The nylon baffle is axially limited by the fixing limiting member 7 and the locking nut 8. It should be noted that there are various ways to fix the fixing limiting member 7 to the rotating shaft 30, including threaded connection, snap-fit ​​connection, welding, or integral molding, etc., and no specific limitation is made in this invention. In this embodiment, the fixing limiting member 7 is welded to the rotating shaft 30, and the connection method is simple and reliable.

[0055] The working principle of the small ball mill for laboratory use in this utility model is as follows:

[0056] The drive assembly 6 serves as the power source, and the power generated is transmitted to the first support transmission assembly 3 via the belt drive assembly 5. When the rotating shaft 30 rotates, the various components mounted on it work together. The nylon baffles rotate with the rotating shaft 30, and a rubber sleeve 32 is provided between the two nylon baffles 31 of each set of nylon baffles. The rubber sleeve 32, on the one hand, contacts the ball mill assembly 2 and uses friction to drive the ball mill assembly 2 to rotate axially; on the other hand, the elasticity of the rubber sleeve 32 can buffer the impact force that the ball mill assembly 2 may be subjected to during rotation. The spacer sleeve 33 is located between two adjacent sets of nylon baffles, and the fixing limiter 7 and locking nut 8 are provided at both ends of the rotating shaft 30 to ensure the relative position of the nylon baffles on the rotating shaft 30 is stable, maintaining the orderly operation of the entire transmission support structure. The rotating shaft 30 of the second support transmission assembly 4 is also equipped with nylon baffles, rubber sleeves 32, and spacer sleeves of the same structure, which cooperate with the first support transmission assembly 3 to jointly support the ball mill assembly 2 and ensure the stability of the ball mill assembly 2 during rotation.

[0057] In this small laboratory ball mill, the structural design of the rotating shaft 30 ensures stable operation and convenient maintenance. One end of the rotating shaft 30 is equipped with a fixing limiter 7, and the other end is fitted with a locking nut 8, along with a spacer sleeve 33, to axially limit the nylon baffle component. The nylon baffle 31 then secures the rubber sleeve 32 to the rotating shaft 30. During operation, this structure effectively prevents axial displacement of the nylon baffle component, rubber sleeve 32, and ball mill assembly 2, ensuring the stability of the support and transmission structure, extending the equipment's lifespan, and guaranteeing continuous and precise ball milling operations. Furthermore, using the locking nut 8 to fix one end of the rotating shaft 30 facilitates the assembly and disassembly of the nylon baffle 31, rubber sleeve 32, and spacer sleeve 33, reducing the difficulty of equipment maintenance.

[0058] Meanwhile, during long-term use, the rubber sleeve 32 is prone to wear due to frequent friction with the ball mill assembly 2. However, only the rubber sleeve 32 needs to be replaced, without disassembling the entire support and transmission assembly, which greatly reduces maintenance costs and improves the convenience and efficiency of equipment use and maintenance. In addition, the rough surface of the rubber sleeve 32 increases the friction when it contacts the ball mill assembly 2, stably driving the ball mill assembly 2 to rotate, avoiding slippage, ensuring the stable rotation speed of the ball mill assembly 2, and improving the consistency and reliability of the ball milling effect.

[0059] Furthermore, the support and transmission components are flexibly configured, featuring at least one set of nylon baffles, at least one layer of rubber sleeves 32, and spacer sleeves 33, which can be adjusted according to the ball mill requirements and the size of the ball mill assembly 2. For example, for larger ball mill assemblies 2, the number of rubber sleeve layers 32 can be reduced, and the length of the spacer sleeves 33 can be adjusted, thereby enhancing the equipment's versatility and applicability.

[0060] Furthermore, in some specific embodiments, a first elongated hole 10 is provided at the connection between the drive assembly 6 and the mounting bracket 1. The first elongated hole 10 is used to adjust the installation position of the drive assembly 6. By adjusting the installation position of the drive assembly 6 through the first elongated hole 10, the belt tension can be easily adjusted, so that the belt is in the optimal working state, reducing problems such as belt slippage and wear, improving the efficiency and reliability of belt drive, and also extending the service life of the belt.

[0061] Specifically, the left and right ends of the rotating shaft 30 are respectively provided with seated bearings 34, which are mounted on the mounting bracket 1 to support the left and right ends of the rotating shaft 30.

[0062] A second elongated hole is provided at the connection between the bearing 34 and the mounting bracket 1. This second elongated hole is used to adjust the installation position of the rotating shaft 30. On one hand, this allows the distance between the rotating shaft 30 in the first support transmission assembly 3 and the second support transmission assembly 4 to be adjusted according to the size of the ball mill assembly 2. For ball mill assemblies of different specifications and sizes, the position of the rotating shaft 30 can be adjusted to ensure that the ball mill assembly can be stably installed between the two support transmission assemblies, improving the equipment's adaptability to ball mill assemblies of different sizes and expanding the equipment's application range.

[0063] On the other hand, the distance between the rotating shaft 30 of the first support transmission component 3 and the drive component 6 can be changed to adjust the belt tension of the belt drive component 5. In actual use, the belt tension may change as the equipment operates and parts wear. By adjusting the position of the rotating shaft 30, the belt tension can be adjusted promptly and conveniently, ensuring the stability and reliability of the belt drive. Simultaneously, the transmission ratio of the belt drive can be changed by adjusting the distance according to different transmission requirements, satisfying diverse experimental needs.

[0064] Furthermore, in some specific embodiments, the drive component 6 includes a motor, which provides driving power.

[0065] The belt drive assembly 5 includes a small pulley 50 installed at the output end of the motor, a large pulley 51 installed on the rotating shaft 30 of the first support drive assembly 3, and a V-belt 52 installed between the small pulley 50 and the large pulley 51.

[0066] Since the diameter of the small pulley 50 is smaller than that of the large pulley 51, when the motor drives the small pulley 50 to rotate, the speed is reduced and transmitted to the large pulley 51 through the V-belt 52. According to mechanical principles, under a certain power, a decrease in speed will increase the torque, thus providing a sufficiently large torque to drive the ball mill assembly and meet the demand for larger torque in ball mill operations.

[0067] Meanwhile, the V-belt 52 has good elasticity and friction, enabling efficient power transmission between the small pulley 50 and the large pulley 51. Furthermore, the high friction between it and the pulleys prevents slippage, ensuring that the motor's power is stably and reliably transmitted to the first support transmission assembly 3, thereby driving the ball mill assembly 2 to rotate.

[0068] Specifically, protective covers (not shown in the figure) are provided on the outside of the small pulley 50, the large pulley 51 and the V-belt 52 to prevent the safety hazard of the V-belt 52 breaking and flying out.

[0069] Furthermore, in some specific embodiments, two locking nuts 8 are arranged side by side, which greatly enhances the locking effect and reduces the risk of the nuts loosening due to vibration, thereby causing equipment failure.

[0070] In some embodiments, a nylon ring is fitted between the locking nut 8 and the rotating shaft 30. The nylon ring has a high coefficient of friction, and its placement between the locking nut 8 and the rotating shaft 30 increases the friction between them. When the nut is tightened, the nylon ring deforms under pressure, further filling the tiny gap between the nut and the rotating shaft 30, enhancing the self-locking capability of the locking nut 8. Even when subjected to vibration or other external forces during equipment operation, the friction generated by the nylon ring effectively prevents the locking nut 8 from loosening, improving the reliability of the locking mechanism.

[0071] Furthermore, in some specific embodiments, such as Figure 4 As shown, the ball mill assembly 2 includes:

[0072] The tank 20 contains grinding balls 21 and mud 22. In this embodiment, the tank 20 is made of ceramic material with a rough surface and low cost. It rolls and rotates in contact with the rubber sleeve 32, which increases the coefficient of friction and prevents slippage. At the same time, the rubber sleeve 32 has a certain elasticity to prevent the tank 20 from breaking. In this embodiment, the slurry filling volume of one tank 20 is about 1L to 2L, which is suitable for small-batch experiments and effectively reduces the cost required for a single experiment.

[0073] Can opening plug 23 is disposed at the open end of the can body 20 and is used to seal the opening of the can body 20.

[0074] Specifically, the open end of the tank body 20 is provided with a conical hole 201;

[0075] The outer surface of the can stopper 23 is a conical surface 231, which matches the conical hole 201 at the opening end of the can body 20. A polytetrafluoroethylene (PTFE) sealing layer is coated on the outer surface of the conical surface 231. The fit between the conical surface 231 and the conical hole 201, along with the PTFE sealing layer, achieves a double sealing effect. In this embodiment, the cone angle of the conical surface 231 is 15° to 30°.

[0076] On one hand, when the ball mill assembly 2 is performing ball milling operations, the grinding balls 21 and mud 22 are first loaded into the jar 20. The number and size of the grinding balls 21, the amount of mud 22, and the formula can be designed and selected by those skilled in the art based on specific experimental requirements. Then, the jar stopper 23 is installed at the open end of the jar 20. Since the open end of the jar 20 is provided with a conical hole 201, and the outer surface of the jar stopper 23 is a matching conical surface 231, when the jar stopper 23 is inserted into the opening of the jar 20, the conical surface 231 and the conical hole 201 can fit tightly together. During the installation process, as the jar stopper 23 is gradually inserted, the contact area between the two gradually increases, forming a wedge-like effect, so that the jar stopper 23 is firmly fixed on the jar 20.

[0077] On the other hand, the polytetrafluoroethylene (PTFE) sealing layer covering the conical surface 231 of the canister plug 23 plays a crucial sealing role. PTFE has an extremely low coefficient of friction and good flexibility. When the canister plug 23 is inserted into the canister body 20, the sealing layer fills the tiny gap between the conical surface 231 and the conical hole 201, further preventing the grinding balls 21, slurry 22, and dust generated during the ball milling process from leaking from the opening inside the canister body 20. During the ball milling process, the canister body 20 rotates continuously, and the grinding balls 21 and slurry 22 inside generate a certain impact force and pressure. The PTFE sealing layer maintains good sealing performance under this dynamic environment, ensuring that the ball milling operation is carried out in a closed environment.

[0078] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A small ball milling device for laboratory use, characterized in that: It includes a mounting frame, a ball mill assembly mounted on the mounting frame, a first support transmission assembly, a second support transmission assembly, a belt transmission assembly, and a drive assembly; The first support transmission assembly and the second support transmission assembly are arranged opposite to each other along the axial direction of the ball mill assembly, respectively located on the front and rear sides of the ball mill assembly, and are both connected to the ball mill assembly in a transmission manner. The drive assembly is connected to the first support transmission assembly via the belt drive assembly, driving the first support transmission assembly to rotate, which in turn causes the ball mill assembly to rotate along its axial direction. Both the first support transmission assembly and the second support transmission assembly include: Rotating shaft; At least one set of nylon baffle components, each set of nylon baffle components consists of two nylon baffles spaced apart along the axial direction, the nylon baffles being sleeved on the rotating shaft; and the area between the two nylon baffles in each set of nylon baffle components corresponds to the installation position of the ball mill assembly; At least one layer of rubber sleeve is disposed between the two nylon baffles in each group of the nylon baffle components, and is successively sleeved on the rotating shaft; A spacer sleeve is disposed between two adjacent sets of the nylon baffle components and sleeved on the rotating shaft; The rotating shaft is provided with a fixed limiting member at one end near the belt drive assembly and a locking nut at the other end away from the belt drive assembly. The nylon baffle is axially limited by the fixed limiting member and the locking nut.

2. The small-scale ball mill for laboratory use according to claim 1, characterized in that: The fixed limiting component is welded and installed on the rotating shaft.

3. The small-scale ball mill for laboratory use according to claim 1, characterized in that: A first elongated hole is provided at the connection between the drive component and the mounting bracket, and the first elongated hole is used to adjust the installation position of the drive component.

4. The small-scale ball mill for laboratory use according to claim 3, characterized in that: The left and right ends of the rotating shaft are respectively provided with seated bearings, which are mounted on the mounting bracket to support the left and right ends of the rotating shaft. A second elongated hole is provided at the connection between the bearing and the mounting bracket. The second elongated hole is used to adjust the installation position of the rotating shaft.

5. The small-scale ball mill for laboratory use according to claim 1, characterized in that: The drive component includes a motor; The belt drive assembly includes a small pulley installed at the output end of the motor, a large pulley installed on the rotating shaft of the first support drive assembly, and a V-belt installed between the small pulley and the large pulley.

6. The small-scale ball mill for laboratory use according to claim 5, characterized in that: The small pulley, the large pulley, and the V-belt are all equipped with protective covers.

7. The small-scale ball mill for laboratory use according to claim 1, characterized in that: Two locking nuts are arranged side by side; And / or, a nylon ring is fitted between the locking nut and the rotating shaft.

8. The small-scale ball mill for laboratory use according to claim 1, characterized in that: The ball mill assembly includes: A tank containing grinding balls and mud; A can opening plug is provided at the open end of the can body to seal the can opening.

9. The small-scale ball mill for laboratory use according to claim 8, characterized in that: The open end of the tank body is provided with a conical hole; The outer surface of the can stopper is a conical surface that matches the conical hole at the opening end of the can body, and a polytetrafluoroethylene sealing layer is wrapped around the outer surface of the conical surface.

10. The small-scale ball mill for laboratory use according to claim 1, characterized in that: The ball mill assembly is provided in at least two sets.

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