Grinding equipment for superfine calcium hydrophosphate production
By designing a bidirectional screw and bevel gear transmission mechanism, the distance and rotation speed of the dicalcium phosphate grinding roller are precisely adjusted, solving the problems of high energy consumption and inaccurate fineness control in existing equipment, and achieving a high-efficiency and low-energy-consumption grinding effect.
Patent Information
- Application Number
- CN202520117880.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Existing dicalcium phosphate grinding equipment suffers from high energy consumption, low grinding efficiency, and difficulty in accurately controlling grinding fineness, making it particularly difficult to meet the needs of high-end applications.
The distance between the grinding rollers is adjusted by synchronously rotating two bidirectional screws (No. 1 and No. 2), and the high-speed rotation of the grinding rollers is achieved through a bevel gear transmission mechanism to precisely control the grinding fineness.
It achieves efficient and precise control of dicalcium phosphate grinding, improves grinding efficiency and reduces energy consumption, meeting the requirements of high-end application fields.
Smart Images

Figure CN223959723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dicalcium phosphate production, and more specifically, to a grinding device for producing ultrafine dicalcium phosphate. Background Technology
[0002] Dicalcium phosphate, as an important inorganic chemical raw material, has wide applications in agriculture, food, medicine, and feed. Its physical form, particle size, and fineness have a significant impact on product performance and uses. Especially in high-end applications such as food additives and pharmaceutical excipients, extremely high requirements are placed on the fineness and uniformity of dicalcium phosphate. Therefore, how to efficiently and precisely control the grinding fineness of dicalcium phosphate has become an urgent problem to be solved.
[0003] Traditional dicalcium phosphate grinding equipment mostly uses mechanical grinding methods such as ball mills and vibratory mills. While these devices can meet grinding requirements to some extent, they suffer from high energy consumption, low grinding efficiency, and uneven particle size distribution. In particular, when it is necessary to adjust the grinding fineness of dicalcium phosphate, it is often necessary to stop the machine to adjust the grinding media or replace the grinding components, which not only affects production efficiency but also increases production costs.
[0004] With advancements in technology and processes, the demands on dicalcium phosphate grinding equipment are increasing. On one hand, the equipment must be able to perform continuous and stable grinding operations to improve production efficiency; on the other hand, it must be able to precisely control the grinding fineness to meet the needs of high-end applications. Therefore, developing a high-efficiency, precise, and easily adjustable dicalcium phosphate grinding equipment is particularly important. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a grinding equipment for the production of ultrafine dicalcium phosphate. By synchronously rotating a No. 1 bidirectional screw and a No. 2 bidirectional screw, the distance between the two grinding rollers can be precisely adjusted, thereby achieving precise control over the grinding fineness of dicalcium phosphate.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution.
[0009] A grinding device for producing ultrafine dicalcium phosphate includes a housing. A mounting frame is fixedly connected to one side of the housing. A first bidirectional screw and a second bidirectional screw are rotatably connected to both sides of the housing. A moving block is threadedly connected to the outer wall of the first bidirectional screw. A limiting rod is fixedly connected to one side of the housing, and the limiting rod is located above the first bidirectional screw. A fixing block is threadedly connected to the outer wall of the second bidirectional screw. Grinding rollers are rotatably connected between the moving block and the fixing block. Both grinding rollers are located above the interior of the housing and are slidably connected to the housing.
[0010] Furthermore, a first bevel gear is rotatably connected above the fixed block, and a second bevel gear is fixedly connected to one end of the grinding roller located outside the housing, with the first bevel gear and the second bevel gear meshing.
[0011] Furthermore, a rack gear is rotatably connected above the mounting bracket, and a drive gear is rotatably connected above the fixing block. The drive gear and a first bevel gear are coaxially and fixedly connected, and the drive gear meshes with the rack gear.
[0012] Furthermore, a motor is fixedly connected to the top of the mounting bracket, and the output end of the motor is fixedly connected to one side of the rack gear.
[0013] Furthermore, a handle is fixedly connected to one end of the first bidirectional screw, and a transmission belt is connected between the first bidirectional screw and the second bidirectional screw.
[0014] Furthermore, a door is rotatably connected to the lower side of one side of the box.
[0015] 3. Beneficial effects
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] (1) In this scheme, the distance between the two grinding rollers can be precisely adjusted by the synchronous rotation of the No. 1 bidirectional screw and the No. 2 bidirectional screw, thereby achieving precise control of the grinding fineness of dicalcium phosphate.
[0018] (2) This solution utilizes a bevel gear transmission mechanism to efficiently transmit the motor's power to the grinding roller, achieving high-speed rotation of the grinding roller. At the same time, compared with traditional ball milling, vibratory milling, and other methods, the rolling grinding method of the grinding roller has higher grinding efficiency and lower energy consumption. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram showing the connection relationship between the bar gear and the mounting bracket in this utility model;
[0021] Figure 3 For the present utility model Figure 2 Schematic diagram of the structure at point A in the middle;
[0022] Figure 4 This is a schematic diagram showing the positional relationship between the fixed block, the drive gear, and the first bevel gear in this utility model.
[0023] Explanation of the labels in the diagram:
[0024] 1. Housing; 11. Mounting bracket; 12. Door; 13. No. 1 double-acting screw; 14. Limiting rod; 15. Moving block; 16. Drive belt; 17. Grinding roller; 18. No. 2 double-acting screw; 19. Fixing block; 2. Drive gear; 21. No. 1 bevel gear; 22. No. 2 bevel gear; 23. Strip gear; 24. Motor; 25. Handle. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Example:
[0029] Please see Figure 1-4A grinding device for producing ultrafine dicalcium phosphate includes a housing 1. A mounting frame 11 is fixedly connected to one side of the housing 1. A first bidirectional screw 13 and a second bidirectional screw 18 are rotatably connected to both sides of the housing 1, respectively. A moving block 15 is threadedly connected to the outer wall of the first bidirectional screw 13. A limiting rod 14 is fixedly connected to one side of the housing 1, and the limiting rod 14 is located above the first bidirectional screw 13. A fixing block 19 is threadedly connected to the outer wall of the second bidirectional screw 18. Grinding rollers 17 are rotatably connected between the moving block 15 and the fixing block 19. Both grinding rollers 17 are located inside the upper part of the housing 1 and are slidably connected to the housing 1. In this design, when the first bidirectional screw 13 and the second bidirectional screw 18 rotate simultaneously, the two grinding rollers 17 will slide inside the upper part of the housing 1, thereby achieving the purpose of adjusting the distance between the two grinding rollers 17.
[0030] Please see Figure 1-4 A first bevel gear 21 is rotatably connected above the fixed block 19. A second bevel gear 22 is fixedly connected to one end of the grinding roller 17 located outside the housing 1. The first bevel gear 21 and the second bevel gear 22 mesh. In this scheme, when the first bevel gear 21 rotates, because the first bevel gear 21 meshes with the second bevel gear 22, the rotation of the first bevel gear 21 will drive the second bevel gear 22, i.e., the grinding roller 17, to rotate.
[0031] Please see Figure 1-4 A rack gear 23 is rotatably connected above the mounting bracket 11, and a drive gear 2 is rotatably connected above the fixing block 19. The drive gear 2 and the first bevel gear 21 are coaxially fixedly connected. The drive gear 2 and the rack gear 23 mesh. In this scheme, when the rack gear 23 rotates, it will drive the drive gear 2 to rotate. Since the drive gear 2 and the first bevel gear 21 are coaxially fixedly connected, the rotation of the drive gear 2 will drive the first bevel gear 21 to rotate.
[0032] Please see Figure 1-4 A motor 24 is fixedly connected to the top of the mounting bracket 11. The output end of the motor 24 is fixedly connected to one side of the rack gear 23. In this scheme, the motor 24 provides power for the rotation of the rack gear 23.
[0033] Please see Figure 1-4 A handle 25 is fixedly connected to one end of the first bidirectional screw 13. A transmission belt 16 is connected between the first bidirectional screw 13 and the second bidirectional screw 18. In this scheme, the operator can crank the handle 25 to drive the first bidirectional screw 13 to rotate. Through the transmission belt 16, when the first bidirectional screw 13 rotates, it will drive the second bidirectional screw 18 to rotate.
[0034] Please see Figure 1-4A door 12 is rotatably connected to the lower side of one side of the box body 1. In this solution, workers can use a shovel to open the door 12 and shovel out the crushed dicalcium phosphate inside the box body 1.
[0035] Working principle: Before crushing dicalcium phosphate, if the operator needs to adjust the particle size after crushing, they can crank handle 25. Cranking handle 25 will rotate the first bidirectional screw 13, which, through the transmission belt 16, will drive the second bidirectional screw 18 to rotate. When both screws rotate simultaneously, the distance between the two grinding rollers 17 will decrease, thus adjusting the distance between them. During this process, the drive gear 2 will slide relative to and remain engaged with the rack gear 23. Then, the dicalcium phosphate to be crushed is poured between the two grinding rollers 17, and the motor 24 is started. After starting, the 24 will drive the bar gear 23 to rotate. When the bar gear 23 rotates, it will drive the drive gear 2 to rotate. Since the drive gear 2 and the first bevel gear 21 are coaxially fixedly connected, the rotation of the drive gear 2 will drive the first bevel gear 21 to rotate. When the first bevel gear 21 rotates, since the first bevel gear 21 meshes with the second bevel gear 22, the rotation of the first bevel gear 21 will drive the second bevel gear 22, i.e., the grinding roller 17, to rotate. After being ground and crushed by the two grinding rollers 17, the dicalcium phosphate will fall into the inside of the box 1. Finally, the staff can open the box door 12 to take out the ground dicalcium phosphate from the box 1. It is worth noting that if the fineness of the dicalcium phosphate is still too high, the distance between the grinding rollers 17 can be adjusted a second time to further reduce the fineness of the grinding.
[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A grinding device for producing super-fine dicalcium phosphate, comprising a box (1), characterized in that: The side of the box (1) is fixedly connected with a mounting rack (11), both sides of the box (1) are rotatably connected with a first bidirectional screw rod (13) and a second bidirectional screw rod (18), the outer wall of the first bidirectional screw rod (13) is threadedly connected with a moving block (15), one side of the box (1) is fixedly connected with a limiting rod (14), the limiting rod (14) is located above the first bidirectional screw rod (13), the outer wall of the second bidirectional screw rod (18) is threadedly connected with a fixed block (19), the moving block (15) and the fixed block (19) are rotatably connected with a grinding roller (17), both the grinding rollers (17) are located above the inside of the box (1), and both the grinding rollers (17) are slidably connected with the box (1).
2. The grinding apparatus for producing superfine calcium hydrogen phosphate according to claim 1, characterized by: The upper side of the fixed block (19) is rotatably connected with a first bevel gear (21), one end of the grinding roller (17) located outside the box (1) is fixedly connected with a second bevel gear (22), and the first bevel gear (21) and the second bevel gear (22) are engaged.
3. The grinding apparatus for producing extra-fine calcium hydrogen phosphate according to claim 2, characterized by: The upper side of the mounting rack (11) is rotatably connected with a strip gear (23), the upper side of the fixed block (19) is rotatably connected with a driving gear (2), the driving gear (2) and the first bevel gear (21) are coaxially fixedly connected, and the driving gear (2) and the strip gear (23) are engaged.
4. The grinding apparatus for producing superfine calcium hydrogen phosphate according to claim 3, characterized by: The upper side of the mounting rack (11) is fixedly connected with a motor (24), and one side of the strip gear (23) is fixedly connected with the output end of the motor (24).
5. The grinding apparatus for producing ultrafine calcium hydrogen phosphate according to claim 1, wherein: One end of the first bidirectional screw rod (13) is fixedly connected with a handle (25), and the first bidirectional screw rod (13) and the second bidirectional screw rod (18) are drivingly connected with a transmission belt (16).
6. The grinding apparatus for producing extra-fine calcium hydrogen phosphate according to claim 1, characterized by: The lower side of one side of the box (1) is rotatably connected with a box door (12).