A sawtooth-type crushing grinding disc
By setting crushing teeth in the central through hole of the grinding disc and making the grinding disc body an arc-shaped structure, and setting grinding tooth rings on the front and back of the grinding disc, the problems of jamming and imprecise grinding when grinding large particles of materials in the grinding mill are solved, and the efficient grinding effect of the sawtooth crushing grinding disc with compact structure and ingenious design is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 易娟
- Filing Date
- 2025-09-18
- Publication Date
- 2026-07-03
AI Technical Summary
The existing grinding discs have a circular through hole structure, which makes it easy for the grinding mill to encounter problems such as material not feeding and jamming when grinding large particles. At the same time, the contact area between the grinding disc and the material is small, resulting in insufficient grinding.
A sawtooth-type crushing grinding disc is designed, with multiple crushing teeth arranged in the central through hole. The grinding disc body has an arc surface structure and grinding tooth rings are arranged on the front and back sides, including long, medium and short grinding teeth. It adopts a triangular structure to achieve crushing and fine grinding.
It solves the problem of jamming when grinding large particles in grinding mills, improves grinding fineness, reduces motor load and energy consumption, and is suitable for the use of grinding mills.
Smart Images
Figure CN224443153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sawtooth crushing grinding disc, belonging to the technical field of grinding mill and pulping machine parts. Background Technology
[0002] In the field of grinding and pulping technology, grinding and pulping mills work by using the relative motion of two grinding discs to grind materials into powder or pulp. Existing sawtooth crushing grinding discs, such as the grinding disc and pulping mill disclosed in utility model patent CN221072058U, while meeting certain usage requirements to some extent, have the following problems:
[0003] 1. The existing grinding discs have a circular through hole structure in the middle. The distance between the moving grinding discs and the stationary grinding discs is too small. When grinding large particles (such as corn, soybeans, and peas), the auger shaft of the grinding mill is conveying the material through the middle through hole of the grinding disc. Due to the large size of the material, problems such as no material feeding and jamming are very likely to occur.
[0004] 2. The existing grinding discs have a planar structure. When they complete the grinding and slurry grinding, the contact area between them and the material is relatively small, resulting in insufficient grinding.
[0005] Therefore, it is necessary to develop a new sawtooth crushing grinding disc to solve the above-mentioned problems of existing grinding discs. Summary of the Invention
[0006] The purpose of this utility model is to provide a sawtooth crushing grinding disc with a compact structure and ingenious design to solve the problems of existing grinding discs that are prone to failure to feed, jamming, and insufficient grinding.
[0007] The technical solution of this utility model is:
[0008] A sawtooth-type crushing grinding disc includes a grinding disc body, which is an integral structure; characterized in that: a central through hole is provided in the center of the grinding disc body; multiple crushing teeth are arranged at intervals in the central through hole; multiple mounting holes are evenly distributed on the grinding disc body; grinding tooth rings are provided on both the front and back of the grinding disc body, so that after the grinding teeth wear down, the moving grinding disc and the stationary grinding disc can be swapped on opposite sides for reuse, saving costs and energy for users.
[0009] The aforementioned breaking teeth have a triangular structure.
[0010] The number of assembly holes is three.
[0011] The grinding disc body is a rotating structure with a "V" shaped cross-section.
[0012] The grinding gear ring comprises multiple grinding gear sets interconnected.
[0013] The grinding tooth assembly includes long grinding teeth, medium grinding teeth, and short grinding teeth; multiple medium grinding teeth are provided on one side of the long grinding teeth; multiple short grinding teeth are provided on both sides of the medium grinding teeth; one end of the long grinding teeth, medium grinding teeth, and short grinding teeth is flush with the outer ring of the grinding disc body.
[0014] The cross-sections of the long grinding teeth, medium grinding teeth, and short grinding teeth are all triangular.
[0015] The advantages of this utility model are:
[0016] This sawtooth crushing grinding disc has a compact structure and ingenious design. It adopts a structural design with multiple crushing teeth set in the central through hole. With this design, when grinding large particles, the motor load is light and the saw teeth can easily crush the material first and then enter the grinding disc for fine grinding. This solves the problem of material jamming that exists in existing grinding discs, and is particularly suitable for the needs of grinding mills and pulping machines. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0019] Figure 3 This is a top view of the structure of this utility model;
[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along the AA direction;
[0021] Figure 5 This utility model Figure 1 A magnified structural diagram at point B in the middle.
[0022] In the figure: 1. Grinding disc body; 2. Central through hole; 3. Crushing tooth; 4. Assembly hole; 5. Grinding tooth assembly; 6. Long grinding tooth; 7. Medium grinding tooth; 8. Short grinding tooth. Detailed Implementation
[0023] The sawtooth-type crushing grinding disc includes a grinding disc body 1, which is an integral structure (see the attached instruction manual). Figure 1 and 2 ).
[0024] The grinding disc body 1 has a central through hole 2; multiple triangular-shaped breaking teeth 3 are arranged at intervals inside the central through hole 2 (see the instruction manual appendix). Figure 1 , 2(and 3). The purpose of this setting is to enable the crushing teeth 3 to quickly crush the material when the auger shaft of the grinding mill conveys the material through the intermediate through hole 2, under the compression of the auger shaft. This solves the problem that when the existing intermediate through hole is a smooth hole structure, the auger shaft is prone to jamming with the intermediate through hole during the material conveying process.
[0025] The grinding disc body 1 has multiple mounting holes 4 evenly distributed on it (see the instruction manual). Figure 1 , 2 (and 3). There are three mounting holes 4. The grinding disc body 1 can be mounted on the grinding mill through the mounting holes 4.
[0026] The grinding disc body 1 is a rotating structure with a "V" shaped cross-section (see the instruction manual appendix). Figure 5 The purpose of setting the grinding disc body 1 in this way is to make the two grinding disc bodies 1 stacked and moving relative to each other to grind the material between them. Since the surface of the grinding disc body 1 is arc-shaped, its contact area with the material is larger than that of the planar structure, thus the grinding is more refined, thereby solving the problem of insufficient grinding when the existing grinding discs are planar.
[0027] The grinding disc body 1 has grinding tooth rings on both its front and back sides. Each grinding tooth ring is composed of multiple interconnected grinding tooth groups 5. Each grinding tooth group 5 includes long grinding teeth 6, medium grinding teeth 7, and short grinding teeth 8. Multiple medium grinding teeth 7 are located on one side of the long grinding tooth 6; multiple short grinding teeth 8 are located on both sides of the medium grinding tooth 7; one end of each of the long grinding tooth 6, medium grinding tooth 7, and short grinding tooth 8 is flush with the outer ring of the grinding disc body 1. The cross-sections of the long grinding tooth 6, medium grinding tooth 7, and short grinding tooth 8 are all triangular.
[0028] The purpose of arranging long grinding teeth 6, medium grinding teeth 7, and short grinding teeth 8 in this way is to ensure that during the grinding process, the material passes through the long grinding teeth 6, medium grinding teeth 7, and short grinding teeth 8 sequentially to achieve the grinding purpose. This achieves the purpose of staged grinding, thus avoiding the problem of excessive resistance when the short grinding teeth 8 directly contact the material, which would require a larger motor and higher energy consumption to complete the grinding. At the same time, it also allows the material to be ground more finely.
[0029] This sawtooth crushing grinding disc has a compact structure and ingenious design. It adopts a structural design with crushing teeth 3 set in the central through hole 2. With this design, the grinding teeth can crush the blocked material, thereby solving the problem of easy jamming in existing grinding discs. It is particularly suitable for the needs of grinding and pulping machines.
Claims
1. A sawtooth-type crushing grinding disc, wherein the grinding disc comprises a grinding disc body (1), which is an integral structure; characterized in that: The grinding disc body (1) has a central through hole (2) at its center; multiple breaking teeth (3) are arranged at intervals inside the central through hole (2); multiple assembly holes (4) are evenly distributed on the grinding disc body (1); grinding tooth rings are provided on both the front and back sides of the grinding disc body (1).
2. The sawtooth crushing grinding disc according to claim 1, characterized in that: The aforementioned breaking tooth (3) has a triangular structure.
3. The sawtooth crushing grinding disc according to claim 1, characterized in that: The number of assembly holes (4) is three.
4. The sawtooth crushing grinding disc according to claim 1, characterized in that: The grinding disc body (1) is a rotating structure with a "V" shaped cross-section.
5. A sawtooth-type crushing grinding disc according to claim 1, characterized in that: The grinding gear ring comprises multiple grinding gear sets (5) connected to each other.
6. A sawtooth-type crushing grinding disc according to claim 5, characterized in that: The grinding tooth group (5) includes a long grinding tooth (6), a medium grinding tooth (7) and a short grinding tooth (8); a plurality of medium grinding teeth (7) are provided on one side of the long grinding tooth (6); a plurality of short grinding teeth (8) are provided on both sides of the medium grinding tooth (7); one end of the long grinding tooth (6), the medium grinding tooth (7) and the short grinding tooth (8) are flush with the outer ring of the grinding disc body (1).
7. A sawtooth-type crushing grinding disc according to claim 6, characterized in that: The cross-sections of the long grinding teeth (6), medium grinding teeth (7) and short grinding teeth (8) are all triangular.