Grinding device capable of adjusting crushing particle size
By adjusting the height of the lifting plate through the adjustment mechanism of the grinding device, the spacing between the grinding blocks is changed, which solves the problems of large size, high cost and low efficiency of existing cement grinding devices, and realizes efficient and low-cost particle size adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-14
AI Technical Summary
Existing cement material grinding equipment is large in size, expensive, and involves complicated grinding processes, which affects production efficiency.
An adjustable grinding device was designed. The height of the lifting plate is adjusted by the grinding mechanism and the adjustment mechanism, and the distance between the first and second grinding blocks is changed to adjust the particle size of the material.
It simplifies the grinding process, reduces equipment size and cost, and improves production efficiency.
Smart Images

Figure CN224114039U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of material grinding technology, and more specifically, to a grinding device with adjustable particle size. Background Technology
[0002] Cement grinding is a key step in the cement production process. It mainly involves grinding cement clinker and admixtures (such as slag, fly ash, gypsum, etc.) into fine powder to ultimately form cement products that meet the standards.
[0003] Most existing cement material grinding equipment obtains the final product through multiple grinding and multi-stage screening, resulting in large size, high cost, and complicated grinding process, which affects production efficiency. Utility Model Content
[0004] The purpose of this application is to provide a grinding device with adjustable particle size, which can adjust the particle size of the material according to production needs.
[0005] This application provides a grinding device with adjustable particle size, adopting the following technical solution:
[0006] An adjustable grinding device for crushing particles includes a housing, a grinding mechanism, and an adjusting mechanism. A feed hopper is located at the upper end of the housing, and a discharge pipe is located at the lower end of the housing. A grinding chamber is located inside the housing, and a plurality of first grinding blocks are arranged on the inner wall of the grinding chamber. The grinding mechanism includes a lifting plate, a first motor, a rotating rod, and a grinding head. The lifting plate is located above the housing, and the first motor is mounted on the lifting plate. The rotating rod movably passes through the housing, with its upper end connected to the first motor and its lower end connected to the grinding head. A plurality of second grinding blocks are arranged on the grinding head. The adjusting mechanism is located at the upper end of the housing and is used to adjust the height of the lifting plate.
[0007] Preferably, the grinding chamber includes a conical part and a cylindrical part, a grinding rod is provided at the lower end of the grinding head, the grinding rod extends to the cylindrical part, a plurality of third grinding blocks are provided on the outer wall of the grinding rod, and the diameter of the grinding rod gradually decreases from top to bottom.
[0008] Preferably, the adjusting mechanism includes a second motor, a threaded rod, a top plate, and multiple guide posts. The top plate is located above the lifting plate, the guide posts are disposed between the top plate and the housing, the lifting plate is slidably sleeved on the guide posts, the second motor is disposed at the upper end of the housing, the second motor drives the threaded rod to rotate, the lifting plate is threadedly sleeved on the threaded rod, and the threaded rod is rotatably connected to the top plate.
[0009] Preferably, a dustproof bag is provided between the lifting plate and the box body.
[0010] Preferably, a flow guide block is provided at the lower end of the interior of the box.
[0011] Preferably, support rods are provided at the four corners of the bottom of the box.
[0012] Preferably, the upper end of the grinding head has an arched structure.
[0013] Compared with the prior art, the beneficial effects of this application are as follows:
[0014] This application sets up a grinding mechanism and an adjustment mechanism. During use, the height of the lifting plate is adjusted by the adjustment mechanism according to different production needs. The lifting plate drives the first motor, the rotating rod and the grinding head to move synchronously, so as to change the distance between the first grinding block and the second grinding block, thereby adjusting the particle size of the crushed material. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle.
[0018] In the diagram: 1. Housing; 2. Grinding mechanism; 3. Adjustment mechanism; 4. Feed hopper; 5. Discharge pipe; 6. Grinding chamber; 7. First grinding block; 8. Lifting plate; 9. First motor; 10. Rotating rod; 11. Grinding head; 12. Second grinding block; 13. Conical part; 14. Cylindrical part; 15. Grinding rod; 16. Third grinding block; 17. Second motor; 18. Threaded rod; 19. Top plate; 20. Guide column; 21. Dustproof bag; 22. Guide block; 23. Support rod. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0022] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "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 application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0025] Example
[0026] like Figure 1 and Figure 2As shown in the embodiment of this application, the adjustable grinding device for crushing particles includes a housing 1, a grinding mechanism 2, and an adjustment mechanism 3. A feed hopper 4 is provided at the upper end of the housing 1, and a discharge pipe 5 is provided at the lower end of the housing 1. A grinding chamber 6 is provided inside the housing 1, and a plurality of first grinding blocks 7 are provided on the inner wall of the grinding chamber 6. The grinding mechanism 2 includes a lifting plate 8, a first motor 9, a rotating rod 10, and a grinding head 11. The lifting plate 8 is located above the housing 1, the first motor 9 is mounted on the lifting plate 8, the rotating rod 10 is movably inserted through the housing 1, the upper end of the rotating rod 10 is connected to the first motor 9, and the lower end of the rotating rod 10 is connected to the grinding head 11. A plurality of second grinding blocks 12 are provided on the grinding head 11. The adjustment mechanism 3 is located at the upper end of the housing 1 and is used to adjust the height of the lifting plate 8.
[0027] In use, the height of the lifting plate 8 is adjusted by the adjusting mechanism 3 according to different production needs. The lifting plate 8 drives the first motor 9, the rotating rod 10 and the grinding head 11 to move synchronously, so that the distance between the first grinding block 7 and the second grinding block 12 changes. After the adjustment is completed, the material to be ground is put into the box 1 through the feeding hopper 4. The first motor 9 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the grinding head 11 to rotate. The material is crushed in the grinding chamber 6, and the crushed material is discharged through the discharge pipe 5.
[0028] In this embodiment, the grinding chamber 6 includes a conical part 13 and a cylindrical part 14. A grinding rod 15 is provided at the lower end of the grinding head 11. The grinding rod 15 extends to the cylindrical part 14. A plurality of third grinding blocks 16 are provided on the outer wall of the grinding rod 15. The diameter of the grinding rod 15 gradually decreases from top to bottom. The material is coarsely ground in the conical part 13, and after the material particle size is reduced, it enters the cylindrical part 14 for fine grinding. When the height of the grinding rod 15 changes, the distance between the third grinding block 16 and the second grinding block 12 changes accordingly, thereby realizing the adjustment of the crushed particle size.
[0029] In this embodiment, the adjustment mechanism 3 includes a second motor 17, a threaded rod 18, a top plate 19, and multiple guide posts 20. The top plate 19 is located above the lifting plate 8, and the guide posts 20 are disposed between the top plate 19 and the housing 1. The lifting plate 8 is slidably sleeved on the guide posts 20. The second motor 17 is disposed at the upper end of the housing 1. The second motor 17 drives the threaded rod 18 to rotate, and the lifting plate 8 is threadedly sleeved on the threaded rod 18. The threaded rod 18 is rotatably connected to the top plate 19.
[0030] In use, the second motor 17 drives the threaded rod 18 to rotate forward or backward. The rotation of the threaded rod 18 causes the lifting plate 8 to move up and down. The lifting plate 8 drives the first motor 9, the rotating rod 10 and the grinding head 11 to move synchronously, so that the distance between the first grinding block 7 and the second grinding block 12 changes.
[0031] In this embodiment, a dustproof bag 21 is provided between the lifting plate 8 and the housing 1. The dustproof bag 21 serves to prevent dust particles from escaping through the gap between the rotating shaft and the housing 1.
[0032] In this embodiment, a guide block 22 is provided at the lower end of the inside of the box 1. The guide block 22 plays a guiding role, which facilitates the material to enter the inside of the discharge pipe 5.
[0033] In this embodiment, support rods 23 are respectively provided at the four corners of the bottom of the box 1, and the support rods 23 are used to support the box 1.
[0034] In this embodiment, the upper end of the grinding head 11 has an arched structure, which can prevent material from accumulating at the upper end of the grinding head 11.
[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A grinding device with adjustable particle size, characterized in that: The device includes a housing, a grinding mechanism, and an adjusting mechanism. The housing has a feed hopper at its upper end and a discharge pipe at its lower end. The housing contains a grinding chamber with several first grinding blocks on its inner wall. The grinding mechanism includes a lifting plate, a first motor, a rotating rod, and a grinding head. The lifting plate is located above the housing, and the first motor is mounted on it. The rotating rod movably passes through the housing, with its upper end connected to the first motor and its lower end connected to the grinding head. Several second grinding blocks are mounted on the grinding head. The adjusting mechanism is located at the upper end of the housing and is used to adjust the height of the lifting plate.
2. The grinding device with adjustable particle size according to claim 1, characterized in that: The grinding chamber includes a conical part and a cylindrical part. A grinding rod is provided at the lower end of the grinding head. The grinding rod extends to the cylindrical part. A plurality of third grinding blocks are provided on the outer wall of the grinding rod. The diameter of the grinding rod gradually decreases from top to bottom.
3. The grinding device with adjustable particle size according to claim 1, characterized in that: The adjustment mechanism includes a second motor, a threaded rod, a top plate, and multiple guide columns. The top plate is located above the lifting plate, the guide columns are disposed between the top plate and the housing, the lifting plate is slidably sleeved on the guide columns, the second motor is disposed at the upper end of the housing, the second motor drives the threaded rod to rotate, the lifting plate is threadedly sleeved on the threaded rod, and the threaded rod is rotatably connected to the top plate.
4. The grinding device with adjustable particle size according to claim 1, characterized in that: A dustproof bag is provided between the lifting plate and the box body.
5. The grinding device with adjustable particle size according to claim 1, characterized in that: A flow guide block is provided at the lower end of the interior of the box.
6. The grinding device with adjustable particle size according to claim 1, characterized in that: Support rods are installed at the four corners of the bottom of the box.
7. The grinding device with adjustable particle size according to claim 1, characterized in that: The upper end of the grinding head has an arched structure.