Colloid mill self-locking grinding mechanism

Abstract

The utility model discloses a kind of colloidal mill self-locking type grinding mechanism, including shell body, fixed grinding assembly and dynamic grinding assembly, the fixed grinding assembly and the dynamic grinding assembly are oppositely arranged and vertical coaxial contrast, the top both sides of the fixed grinding assembly are combined with the adjusting assembly with double self-locking function setting.There is beneficial effect in at:The utility model can adjust the position height of fixed grinding assembly by the adjusting screw stud of adjusting assembly positive and negative rotation mode, to be able to adjust the grinding gap between fixed grinding assembly and dynamic grinding assembly, the adjustment mode of grinding gap is simple and easy to realize, simultaneously, due to the bearing type of the connecting bearing seat built-in between the bottom of adjusting screw stud and fixed grinding assembly is thrust bearing, in turn can reduce the frictional resistance in the process of rotating adjusting screw stud, ensure that the adjustment process can be more smooth and labor-saving, and only need to hold handle force can easily adjust grinding gap, further improve the operation convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of colloid mill equipment, specifically to a self-locking grinding mechanism for a colloid mill. Background Technology

[0002] A colloid mill is a mechanical device used for ultrafine grinding and emulsification. Its core working component is the grinding mechanism, which mainly uses the high-speed relative rotation between a stationary grinding disc and a moving grinding disc to shear, grind, and disperse materials to achieve material refinement. During the operation of the colloid mill, the size of the gap between the stationary and moving grinding discs directly affects the grinding effect and fineness of the material. Therefore, it is necessary to ensure that the grinding mechanism can stably maintain the set gap during operation, avoiding changes in the gap due to vibration, material impact, or other factors, which would affect the processing quality.

[0003] In existing technologies, most commercially available colloid mill grinding mechanisms use bolts or simple nuts to fix the position of the stationary grinding disc to maintain the gap between the stationary and moving grinding discs. However, during long-term use, the vibration generated by the operation of the equipment can easily cause the bolts or nuts to loosen, leading to displacement of the stationary grinding disc. This results in an increased or uneven grinding gap. Furthermore, once the grinding gap changes, it not only reduces the fineness and uniformity of the ground material, affecting product quality, but may also cause excessive wear between the stationary and moving grinding discs, shortening the service life of the equipment and increasing maintenance costs.

[0004] In addition, when it is necessary to adjust the grinding gap between the stationary grinding disc and the moving grinding disc, it is often necessary to first loosen multiple bolts or nuts of the locking mechanism, and then tighten them again after adjustment. This operation is cumbersome, the adjustment efficiency is low, and it is difficult to guarantee the adjustment accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking grinding mechanism for a colloid mill in order to solve the above problems, as detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a self-locking grinding mechanism for a colloid mill, including a housing body, a fixed grinding component, and a moving grinding component. The fixed grinding component and the moving grinding component are arranged inside the housing body. The fixed grinding component and the moving grinding component are arranged vertically opposite each other and coaxially aligned, so that a grinding gap is formed between the opposite surfaces of the fixed grinding component and the moving grinding component.

[0008] Both sides of the top of the fixed grinding component are equipped with adjustment components with dual self-locking functions, which are used to adjust the grinding gap between the fixed grinding component and the moving grinding component.

[0009] Preferably, the moving grinding assembly includes a moving grinding base and a moving grinding disc. The moving grinding base is coaxially disposed in the lower inner part of the housing body. The moving grinding disc is coaxially fixedly mounted on the top surface of the moving grinding base. A drive shaft body is vertically and coaxially fixed on the bottom surface of the moving grinding base through a connecting sleeve. The drive shaft body passes through the bottom of the housing body and is connected to an external drive device for driving the moving grinding assembly to rotate at high speed. A support bearing seat is fixedly mounted on the bottom of the housing body, and the drive shaft body passes through the inner ring of the bearing built into the support bearing seat and is coaxially fixed to the inner ring of the bearing.

[0010] Preferably, the fixed grinding assembly includes a fixed grinding seat and a fixed grinding disc. The fixed grinding seat is coaxially disposed in the upper part of the housing body. The adjustment assembly is assembled on both sides of the top surface of the fixed grinding seat. The fixed grinding disc is coaxially fixedly installed on the bottom surface of the fixed grinding seat. The fixed grinding disc and the moving grinding disc are coaxially aligned vertically, and a grinding gap is formed between the opposing surfaces of the fixed grinding disc and the moving grinding disc.

[0011] Preferably, the fixed grinding disc has multiple annular grinding teeth on its bottom surface facing the moving grinding disc, and the moving grinding disc has multiple annular grinding grooves that are adapted to the annular grinding teeth on its top surface facing the fixed grinding disc. The annular grinding teeth and the annular grinding grooves mesh with each other and are all concentric with the rotation center of the moving grinding disc to form a grinding cavity.

[0012] Preferably, the center of the fixed grinding seat and the fixed grinding disc are coaxially provided with a feeding hole, the top center of the machine housing is coaxially provided with an inlet hole, a funnel-shaped feeding hopper body is coaxially provided above the feeding hole, and the feeding pipe at the bottom of the feeding hopper body is coaxially fixed and inserted into the feeding hole, and the bottom end of the feeding pipe extends into the feeding hole in a coaxial clearance fit.

[0013] Preferably, a discharge hopper is installed on one side of the machine housing body, and the discharge hopper is connected to the interior of the machine housing body. The outer surfaces of the fixed grinding disc and the moving grinding disc are respectively coaxially fixed with a sealing ring one and a sealing ring two. The outer periphery of the sealing ring one is coaxially and tightly fitted with the inner periphery of the machine housing body, and the outer periphery of the sealing ring two is coaxially and rotatably fitted with the inner periphery of the machine housing body.

[0014] Preferably, each adjustment component includes a fixing hole, an adjusting stud, and a connecting bearing seat. The fixing holes are vertically opened on both sides of the top surface of the housing body, and each fixing hole is coaxially inserted with a mounting sleeve. The mounting sleeve is an internally threaded sleeve, and the adjusting stud is vertically inserted with the mounting sleeve in a threaded manner. The connecting bearing seats are flatly fixed on both sides of the top surface of the fixed grinding seat, and the bottom end of each adjusting stud is coaxially fixed with the inner ring of the bearing built into the corresponding connecting bearing seat.

[0015] Preferably, the portion of the adjusting stud extending out of the top of the mounting sleeve is coaxially engaged with a locking nut, and the locking nut has anti-slip texture around its periphery. The top of the adjusting stud is coaxially fixed with a handle.

[0016] Preferably, the bottom end of the locking nut is provided with a tapered locking surface, and the top end of the mounting sleeve is provided with a tapered mating surface that matches the tapered locking surface. When the locking nut is tightened toward the mounting sleeve, the tapered locking surface and the tapered mating surface fit tightly together.

[0017] Preferably, the bottom end of the mounting sleeve extends out of the inner top surface of the housing body, and the adjusting stud is coaxially fitted with elastic preload members at the portions corresponding to the bottom end of the mounting sleeve and the top end of the connecting bearing seat. The elastic preload members are all cylindrical helical springs and are in a pre-compressed state. The bearings built into the supporting bearing seat and the connecting bearing seat are both thrust bearings.

[0018] The self-locking grinding mechanism of the colloid mill described above, in practical use, features adjusting components mounted on the top of both sides of the stationary grinding assembly. The position and height of the stationary grinding assembly can be adjusted by rotating the adjusting screw of the adjusting components in both directions, thereby adjusting the grinding gap between the stationary and moving grinding assemblies. This adjustment method is simple and easy to implement. Furthermore, since the bearing type built into the connecting bearing housing between the bottom of the adjusting screw and the stationary grinding assembly is a thrust bearing, the frictional resistance during the rotation of the adjusting screw is reduced, ensuring a smoother and less strenuous adjustment process. Moreover, the grinding gap can be easily adjusted simply by applying force with the handle, further improving operational convenience. Additionally, the adjusting components have a self-locking function. When the adjustment is complete, the conical locking surface at the bottom of the locking nut and the conical mating surface at the top of the mounting sleeve are tightly fitted together, forming a radial clamping force. This, combined with the static friction of the threaded engagement when the locking nut is tightened, achieves double self-locking of the adjusting stud, effectively preventing the grinding gap from loosening due to equipment vibration. Furthermore, since the outer periphery of the adjusting stud is coaxially fitted with the elastic preload element at the bottom of the mounting sleeve and the top of the connecting bearing seat, and the elastic preload element is a cylindrical helical spring in a pre-compressed state, it can always provide axial preload to the grinding assembly, offsetting part of the axial force generated by material impact and equipment vibration, thereby preventing axial movement of the grinding assembly and further ensuring the stability of the grinding gap.

[0019] The beneficial effects are as follows: 1. The present invention has adjustment components assembled on both sides of the top of the fixed grinding component. The position and height of the fixed grinding component can be adjusted by rotating the adjustment screw of the adjustment component in both directions, thereby adjusting the grinding gap between the fixed grinding component and the moving grinding component. The adjustment of the grinding gap is simple and easy to implement. At the same time, since the bearing type built into the bearing seat connecting the bottom of the adjustment screw and the fixed grinding component is a thrust bearing, the frictional resistance during the rotation of the adjustment screw can be reduced, ensuring that the adjustment process is smoother and less labor-intensive. Moreover, the grinding gap can be easily adjusted by simply holding the handle and applying force, further improving the convenience of operation.

[0020] 2. The adjustment component is equipped with a self-locking function. When the adjustment is completed, the conical locking surface at the bottom of the locking nut and the conical mating surface at the top of the mounting sleeve are closely fitted to form a radial clamping force. This, combined with the static friction of the threaded engagement when the locking nut is tightened, achieves double self-locking of the adjusting stud, effectively preventing the grinding gap from loosening due to equipment vibration.

[0021] 3. An elastic preload is coaxially fitted on the outer periphery of the adjusting stud at the bottom of the mounting sleeve and the top of the connecting bearing seat. The elastic preload is a cylindrical helical spring and is in a pre-compressed state. With the help of the elastic preload, the grinding assembly can always provide axial preload force, which offsets part of the axial force generated by material impact and equipment vibration, thereby preventing axial movement of the grinding assembly and further ensuring the stability of the grinding gap. Attached Figure Description

[0022] 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.

[0023] Figure 1 This is an overall isometric schematic diagram of this utility model;

[0024] Figure 2 This is a utility model Figure 1 A schematic diagram of the cross-section;

[0025] Figure 3 This is a utility model Figure 3 Enlarged view of a portion at point A;

[0026] Figure 4 This is a utility model Figure 1 Partial illustration Figure 1 ;

[0027] Figure 5 This is a utility model Figure 1 Partial illustration Figure 2 ;

[0028] Figure 6 This is a utility model Figure 1 Partial illustration Figure 3 ;

[0029] Figure 7 This is a utility model Figure 1 Front view diagram;

[0030] Figure 8 This is a utility model Figure 1 A top-down view.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1. Feed hopper body; 101. Discharge pipe; 2. Machine housing body; 201. Feed hole; 202. Discharge hopper; 3. Adjustment assembly; 301. Handle; 302. Adjustment stud; 303. Locking nut; 304. Conical locking surface; 305. Conical mating surface; 306. Mounting sleeve; 307. Fixing hole; 308. Elastic preload; 309. Connecting bearing seat; 4. Fixed grinding assembly; 401. Fixed grinding seat; 402. Sealing ring one; 403. Fixed grinding disc; 404. Annular grinding teeth; 405. Feed hole; 5. Moving grinding assembly; 501. Annular grinding groove; 502. Moving grinding disc; 503. Moving grinding seat; 504. Connecting sleeve; 505. Sealing ring two; 6. Drive shaft body; 601. Support bearing seat. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] See Figures 1-8 As shown, this utility model provides a self-locking grinding mechanism for a colloid mill, including a housing body 2, a fixed grinding assembly 4, and a moving grinding assembly 5. The fixed grinding assembly 4 and the moving grinding assembly 5 are arranged inside the housing body 2. The fixed grinding assembly 4 and the moving grinding assembly 5 are arranged vertically opposite each other and coaxially aligned, so that a grinding gap is formed between the opposing surfaces of the fixed grinding assembly 4 and the moving grinding assembly 5. Specifically, the moving grinding assembly 5 includes a moving grinding seat 503 and a moving grinding disc 502. The moving grinding seat 503 is coaxially arranged in the lower part of the housing body 2, and the top surface of the moving grinding seat 503 is coaxially fixed. The moving grinding disc 502 is installed, and the bottom surface of the moving grinding base 503 is vertically and coaxially fixed with the drive shaft body 6 through the connecting sleeve 504. The drive shaft body 6 passes through the bottom of the housing body 2 and is connected to the external drive device for transmission, so as to drive the moving grinding assembly 5 to rotate at high speed. The bottom of the housing body 2 is fixedly installed with a support bearing seat 601, and the drive shaft body 6 passes through the inner ring of the bearing built into the support bearing seat 601 and is coaxially fixed with the inner ring of the bearing, so as to disperse and grind the material by driving the moving grinding assembly 5 to rotate at high speed through the drive shaft body 6.

[0035] See Figures 1-8As shown, the fixed grinding assembly 4 includes a fixed grinding seat 401 and a fixed grinding disc 403. The fixed grinding seat 401 is coaxially disposed in the upper part of the housing body 2. Adjustment components 3 are assembled and installed on both sides of the top surface of the fixed grinding seat 401. The fixed grinding disc 403 is coaxially fixedly installed on the bottom surface of the fixed grinding seat 401. The fixed grinding disc 403 and the moving grinding disc 502 are coaxially aligned vertically, and a grinding gap is formed between the opposite surfaces of the fixed grinding disc 403 and the moving grinding disc 502. This allows the grinding gap between the fixed grinding assembly 4 and the moving grinding assembly 5 to be adjusted by adjusting the position and height of the fixed grinding assembly 4 through the adjustment components 3.

[0036] See Figures 1-6 As shown, both sides of the top of the stationary grinding assembly 4 are equipped with adjustment components 3 with a double self-locking function. These components are used to adjust the grinding gap between the stationary grinding assembly 4 and the moving grinding assembly 5. Specifically, each adjustment component 3 includes a fixing hole 307, an adjustment stud 302, and a connecting bearing seat 309. The top surface of the housing body 2 has vertically opened fixing holes 307 on both sides, and each fixing hole 307 is coaxially inserted with a mounting sleeve 306. The mounting sleeve 306 is an internally threaded sleeve and is threadedly engaged. The grinding assembly 401 is vertically inserted with adjusting studs 302. Both sides of the top surface of the fixed grinding base 401 are fixed with connecting bearing seats 309. The bottom end of the adjusting studs 302 is coaxially fixed with the inner ring of the bearing built into the corresponding connecting bearing seat 309. The purpose of this setting is that the position and height of the fixed grinding assembly 4 can be adjusted by rotating the adjusting studs 302 of the adjusting assembly 3 in both directions. This allows for adjustment of the grinding gap between the fixed grinding assembly 4 and the moving grinding assembly 5. The method of adjusting the grinding gap is simple and easy to implement.

[0037] See Figures 1-8 As shown, the portion of the adjusting stud 302 extending out of the top of the mounting sleeve 306 is coaxially engaged with a locking nut 303. The bottom end of the locking nut 303 is provided with a tapered locking surface 304, and the top end of the mounting sleeve 306 is provided with a tapered mating surface 305 that matches the tapered locking surface 304. When the locking nut 303 is tightened toward the mounting sleeve 306, the tapered locking surface 304 and the tapered mating surface 305 fit tightly together. The purpose of this design is that, after adjustment, the tapered locking surface 304 at the bottom end of the locking nut 303 and the tapered mating surface 305 at the top end of the mounting sleeve 306 fit tightly together to form a radial clamping force. This, combined with the static friction of the threaded engagement when the locking nut 303 is tightened, achieves double self-locking of the adjusting stud 302, effectively preventing the grinding gap from loosening due to equipment vibration during operation.

[0038] See Figures 1-8As shown, the following optimizations have been made to this application. Specifically, the bottom surface of the fixed grinding disc 403 facing the moving grinding disc 502 is provided with multiple annular grinding teeth 404, and the top surface of the moving grinding disc 502 facing the fixed grinding disc 403 is provided with multiple annular grinding grooves 501 that are adapted to the annular grinding teeth 404. The annular grinding teeth 404 and the annular grinding grooves 501 mesh with each other and are all concentric with the rotation center of the moving grinding disc 502 to form a grinding chamber. Optionally, a feed hole 405 is coaxially opened at the center position of the fixed grinding seat 401 and the fixed grinding disc 403, and a feed inlet 201 is coaxially opened at the top center position of the housing body 2. A drain hole is coaxially arranged above the feed inlet 201. The feed hopper body 1 is shaped like a bucket. Preferably, the handle 301 is located below the funnel surface on the outer periphery of the feed hopper body 1 and the two do not interfere with each other in space. The feed pipe 101 at the bottom of the feed hopper body 1 is inserted into the feed hole 201 in a coaxial fixed manner, and the bottom end of the feed pipe 101 extends into the feed hole 405 in a coaxial clearance fit manner. With this setting, it is convenient for external materials to enter the feed hole 405 through the feed pipe 101 of the feed hopper body 1, and then be conveyed to the grinding chamber between the stationary grinding component 4 and the moving grinding component 5 through the feed hole 405. Then, under the relative high-speed rotation of the moving grinding component 5 and the stationary grinding component 4, they are sheared and ground into fine particles or emulsions.

[0039] See Figures 1-8 As shown, a discharge hopper 202 is installed on one side of the machine housing 2, and the discharge hopper 202 is connected to the interior of the machine housing 2. A sealing ring 402 and a sealing ring 505 are coaxially fixed to the outer surfaces of the fixed grinding disc 403 and the moving grinding disc 502, respectively. The outer periphery of the sealing ring 402 is coaxially and tightly fitted with the inner periphery of the machine housing 2, while the outer periphery of the sealing ring 505 is coaxially and rotatably fitted with the inner periphery of the machine housing 2. This arrangement facilitates sealing of the edge positions using the sealing rings 402 and 505, preventing material leakage to a certain extent. Optionally, the locking nut 303 has anti-slip grooves on its outer periphery, and a handle 301 is coaxially fixed to the top of each adjusting stud 302. This arrangement allows the locking nut 303 to be easily tightened and loosened by hand, facilitating manual adjustment by the operator. It also allows the adjusting stud 302 to be rotated by applying force through the handle 301, further facilitating manual adjustment by the operator.

[0040] See Figures 1-8As shown, the bottom end of the mounting sleeve 306 extends out of the inner top surface of the housing body 2. The adjusting stud 302 is coaxially fitted with elastic preload 308 at the bottom end of the mounting sleeve 306 and the top end of the connecting bearing seat 309. The elastic preload 308 is a cylindrical helical spring and is in a pre-compressed state. Preferably, the bottom end of the elastic preload 308 contacts the top surface of the inner ring of the bearing in the connecting bearing seat 309 but is not fixed. At the same time, the top end of the elastic preload 308 abuts against the top end of the mounting sleeve 306. The advantage of this setting is that the elastic preload 308 can always provide axial preload force to the grinding assembly 4, which offsets part of the axial force generated by material impact and equipment vibration, thereby preventing the grinding assembly 4 from axially moving and further ensuring the stability of the grinding gap. Alternatively, the bearings built into the support bearing housing 601 and the connecting bearing housing 309 are both thrust bearings. With this configuration, the support bearing housing 601 can provide stable axial rotation support for the drive shaft body 6, while the connecting bearing housing 309 can reduce the frictional resistance during the rotation of the adjusting stud 302, ensuring that the adjustment process is smoother and less strenuous.

[0041] With the above structure, in practical use, since adjusting components 3 are combined and installed on the top of both sides of the fixed grinding component 4, the position and height of the fixed grinding component 4 can be adjusted by rotating the adjusting stud 302 of the adjusting component 3 in both directions. This allows for adjustment of the grinding gap between the fixed grinding component 4 and the moving grinding component 5. The adjustment of the grinding gap is simple and easy to implement. At the same time, since the bearing type built into the bearing seat 309 connecting the bottom of the adjusting stud 302 and the fixed grinding component 4 is a thrust bearing, the frictional resistance during the rotation of the adjusting stud 302 can be reduced, ensuring a smoother and less strenuous adjustment process. Moreover, the grinding gap can be easily adjusted by simply holding the handle 301 and applying force, further improving the ease of operation. Furthermore, since the adjusting component 3 is equipped with a self-locking function, after adjustment, the locking screw can be used to lock the grinding gap. The tapered locking surface 304 at the bottom of the female 303 and the tapered mating surface 305 at the top of the mounting sleeve 306 are closely fitted to form a radial clamping force. This, combined with the static friction of the threaded engagement when the locking nut 303 is tightened, achieves double self-locking of the adjusting stud 302, effectively preventing the grinding gap from loosening due to equipment vibration. Furthermore, since the outer periphery of the adjusting stud 302 is coaxially fitted with an elastic preload element 308 at the bottom of the mounting sleeve 306 and the top of the connecting bearing seat 309, the elastic preload element 308 is a cylindrical helical spring that is in a pre-compressed state. With the help of the elastic preload element 308, the axial preload force can always be provided to the fixed grinding assembly 4, which offsets part of the axial force generated by material impact and equipment vibration, thereby preventing the fixed grinding assembly 4 from axially shifting and further ensuring the stability of the grinding gap.

[0042] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A self-locking grinding mechanism for a colloid mill, comprising a housing body (2), a stationary grinding assembly (4), and a moving grinding assembly (5), characterized in that: The housing body (2) is provided with the fixed grinding component (4) and the moving grinding component (5). The fixed grinding component (4) and the moving grinding component (5) are arranged opposite each other vertically and are coaxially aligned, so that a grinding gap is formed between the opposite surfaces of the fixed grinding component (4) and the moving grinding component (5). The top two sides of the fixed grinding component (4) are each equipped with an adjustment component (3) with a dual self-locking function, which is used to adjust the grinding gap between the fixed grinding component (4) and the moving grinding component (5).

2. The self-locking grinding mechanism for a colloid mill according to claim 1, characterized in that: The moving grinding assembly (5) includes a moving grinding seat (503) and a moving grinding disc (502). The moving grinding seat (503) is coaxially disposed in the lower inner part of the housing body (2). The moving grinding disc (502) is coaxially fixedly mounted on the top surface of the moving grinding seat (503). The drive shaft body (6) is vertically and coaxially fixed on the bottom surface of the moving grinding seat (503) through a connecting sleeve (504). The drive shaft body (6) passes through the bottom of the housing body (2) and is connected to an external drive device for transmission, and is used to drive the moving grinding assembly (5) to rotate at high speed. A support bearing seat (601) is fixedly mounted on the bottom of the housing body (2), and the drive shaft body (6) passes through the inner bearing ring built into the support bearing seat (601) and is coaxially fixed with the inner bearing ring.

3. The self-locking grinding mechanism for a colloid mill according to claim 2, characterized in that: The fixed grinding assembly (4) includes a fixed grinding seat (401) and a fixed grinding disc (403). The fixed grinding seat (401) is coaxially disposed in the upper part of the housing body (2). The adjustment assembly (3) is assembled on both sides of the top surface of the fixed grinding seat (401). The fixed grinding disc (403) is coaxially fixedly installed on the bottom surface of the fixed grinding seat (401). The fixed grinding disc (403) and the moving grinding disc (502) are coaxially aligned vertically, and a grinding gap is formed between the opposite surfaces of the fixed grinding disc (403) and the moving grinding disc (502).

4. The self-locking grinding mechanism for a colloid mill according to claim 3, characterized in that: The fixed grinding disc (403) has multiple annular grinding teeth (404) on its bottom surface facing the movable grinding disc (502), and the movable grinding disc (502) has multiple annular grinding grooves (501) that are adapted to the annular grinding teeth (404) on its top surface facing the fixed grinding disc (403). The annular grinding teeth (404) and the annular grinding grooves (501) mesh with each other and are all concentric with the rotation center of the movable grinding disc (502) to form a grinding cavity.

5. The self-locking grinding mechanism for a colloid mill according to claim 4, characterized in that: The fixed grinding seat (401) and the fixed grinding disc (403) are coaxially provided with a feed hole (405) at their center positions. The top center position of the machine housing body (2) is coaxially provided with a feed inlet hole (201). A funnel-shaped feed hopper body (1) is coaxially provided above the feed inlet hole (201). The feed pipe (101) at the bottom of the feed hopper body (1) is inserted into the feed inlet hole (201) in a coaxial fixed manner, and the bottom end of the feed pipe (101) extends into the feed inlet hole (405) in a coaxial clearance fit manner.

6. The self-locking grinding mechanism for a colloid mill according to claim 5, characterized in that: A discharge hopper (202) is installed on one side of the machine housing body (2), and the discharge hopper (202) is connected to the interior of the machine housing body (2). The outer surfaces of the fixed grinding disc (403) and the moving grinding disc (502) are respectively coaxially fixed with a sealing ring one (402) and a sealing ring two (505). The outer periphery of the sealing ring one (402) is coaxially and tightly fitted with the inner periphery of the machine housing body (2), and the outer periphery of the sealing ring two (505) is coaxially and rotatably fitted with the inner periphery of the machine housing body (2).

7. A self-locking grinding mechanism for a colloid mill according to any one of claims 3-6, characterized in that: Each adjustment component (3) includes a fixing hole (307), an adjustment stud (302), and a connecting bearing seat (309). The fixing holes (307) are vertically opened on both sides of the top surface of the housing body (2), and each fixing hole (307) is coaxially inserted and fixed with an installation sleeve (306). The installation sleeve (306) is an internally threaded sleeve and the adjustment stud (302) is vertically inserted and installed in a threaded manner. The connecting bearing seat (309) is flatly fixed on both sides of the top surface of the fixed grinding seat (401), and the bottom end of each adjustment stud (302) is coaxially fixed with the inner ring of the bearing built into the corresponding connecting bearing seat (309).

8. The self-locking grinding mechanism for a colloid mill according to claim 7, characterized in that: The portion of the adjusting stud (302) extending out of the top of the mounting sleeve (306) is coaxially engaged with a locking nut (303), and the locking nut (303) has anti-slip texture on its periphery. The top of the adjusting stud (302) is coaxially fixed with a handle (301).

9. The self-locking grinding mechanism for a colloid mill according to claim 8, characterized in that: The bottom end of the locking nut (303) is provided with a tapered locking surface (304), and the top end of the mounting sleeve (306) is provided with a tapered mating surface (305) that matches the tapered locking surface (304). When the locking nut (303) is tightened toward the mounting sleeve (306), the tapered locking surface (304) and the tapered mating surface (305) fit tightly together.

10. A self-locking grinding mechanism for a colloid mill according to claim 8 or 9, characterized in that: The bottom end of the mounting sleeve (306) extends out of the inner top surface of the housing body (2). The adjusting stud (302) is coaxially fitted with elastic preload members (308) at the bottom end of the mounting sleeve (306) and the top end of the connecting bearing seat (309). The elastic preload members (308) are all cylindrical helical springs and are in a pre-compressed state. The bearings built into the supporting bearing seat (601) and the connecting bearing seat (309) are both thrust bearings.

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