Bar-type grinding device
By using a rectangular grinding rod filled with coolant and a rotating shaft structure that is easy to replace in the grinding equipment, the problem of raw material activity loss and cleaning during the grinding of traditional Chinese medicine or health food is solved, achieving efficient low-temperature grinding and convenient cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL AND PHARMACEUTICAL COLLEGE
- Filing Date
- 2025-03-12
- Publication Date
- 2026-06-02
AI Technical Summary
In the field of traditional Chinese medicine or health food, existing grinding equipment can easily lead to the loss of the activity of raw materials and the grinding chamber is not easy to clean.
A rectangular grinding rod filled with coolant is used for low-temperature grinding via a motor-driven grinding assembly. The design incorporates a replaceable rotating shaft and support shaft structure, as well as a coolant supply pipe for easy coolant replacement.
It effectively maintains the activity of raw materials, improves processing efficiency, and simplifies the replacement and cleaning process of grinding components.
Smart Images

Figure CN224308563U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grinding equipment technology, and provides a rod grinding device that effectively ensures the activity of the ground products, facilitates the replacement of grinding components, and is easy to clean. Background Technology
[0002] In the field of traditional Chinese medicine or health food, raw materials need to be ground into powder for convenient consumption. Existing grinding equipment uses pulverizers to crush the raw materials into powder, such as the traditional Chinese medicine grinder disclosed in Chinese Patent 2023111961834. The high-speed rotating blades easily rub against the raw materials, causing them to heat up. The heated raw materials are prone to losing their activity, and the grinding chamber is difficult to clean. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a rod-type grinding device that effectively ensures the activity of the ground product, facilitates the replacement of grinding components, and is easy to clean.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] This utility model provides a rod-type grinding device, including a grinding assembly driven by a motor, which is located in a funnel fixed to the side wall of a machine housing. The motor is located inside the machine housing, and a screen is located above the discharge port of the funnel. The grinding assembly includes two circular support plates, and at least three grinding rods are evenly distributed on the outer walls of the two support plates. The grinding rods have rectangular cross-sections and hollow inner cavities filled with coolant.
[0006] To facilitate the replacement of the grinding components, the above solution further includes: a rotating shaft is provided on the outer wall of the support plate, a square insertion groove is provided at the end of the rotating shaft, and a connecting and fixing hole is provided on the rotating shaft, the axis of the connecting and fixing hole being perpendicular to the axis of the square insertion groove.
[0007] A rotating shaft on the outer wall of the support plate near the motor is connected to an adapter shaft, which is connected to the drive shaft of the motor via a coupling. The adapter shaft is located on the right side wall of the funnel, and a bearing b is provided between the adapter shaft and the right side wall of the funnel. The left end of the adapter shaft has a square shaft section b, which is inserted into the square insertion slot of the rotating shaft on the outer wall of the support plate near the motor. The rotating shaft and the adapter shaft are then connected as one unit by bolts passing through the connection fixing holes on the rotating shaft.
[0008] A rotating shaft on the outer wall of the support plate away from the motor is connected to a support shaft. The support shaft is located on the left side wall of the funnel. A bearing a is provided between the support shaft and the left side wall of the funnel. The right end of the support shaft has a square shaft section a. The square shaft section a is inserted into the square insertion slot of the rotating shaft on the outer wall of the support plate away from the motor, and then the rotating shaft and the support shaft are connected as one unit by bolts passing through the connecting fixing holes on the rotating shaft.
[0009] To facilitate the replacement of the coolant in the grinding rod of the replaced grinding assembly, the above solution further includes: a liquid supply pipe integrally formed with the side wall of the grinding rod, and a control valve installed on the liquid supply pipe.
[0010] The beneficial effects of this utility model are:
[0011] The grinding assembly uses multiple grinding rods filled with coolant, which can be liquid nitrogen or dry ice, to achieve low-temperature grinding. The grinding rods are ground and scraped by their edges through the gap between them and the inner wall of the funnel. The powder that meets the requirements then flows down through the discharge port from the screen, effectively ensuring the activity of the ground product.
[0012] The configuration of the rotating shaft, support shaft, and adapter shaft allows for quick replacement of grinding components, effectively ensuring processing efficiency.
[0013] The grinding rod of the grinding assembly has a rectangular cross-section, which facilitates cleaning. Attached Figure Description
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the power transmission structure of the grinding assembly of this utility model;
[0017] Figure 3 This is a side view of the grinding assembly of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure at the adapter shaft of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure at the support shaft of this utility model;
[0020] Reference numerals: 1. Motor; 2. Grinding assembly; 3. Funnel; 4. Chassis; 5. Support plate; 6. Grinding rod; 7. Rotating shaft; 8. Square insertion slot; 9. Connecting fixing hole; 10. Adapter shaft; 11. Coupling; 12. Support shaft; 13. Bearing a; 14. Square shaft section a; 15. Bearing b; 16. Square shaft section b; 17. Liquid supply pipe; 18. Control valve; 19. Discharge port; 20. Screen; 21. Sealing head. Detailed Implementation
[0021] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0023] like Figure 1-5 As shown, this utility model provides a rod-type grinding device, including a grinding assembly 2 driven by a motor 1, which is located in a funnel 3 fixed to the side wall of a casing 4. The motor 1 is located inside the casing 4, and a screen 20 is located above the discharge port 19 of the funnel 3. The grinding assembly 2 includes two circular support plates 5, with at least three grinding rods 6 evenly distributed on the outer walls of the two support plates 5. The grinding rods 6 have rectangular cross-sections and hollow inner cavities filled with coolant. In this embodiment, the grinding assembly 2 uses multiple grinding rods 6 filled with coolant, such as liquid nitrogen or dry ice, to achieve low-temperature grinding. The gap between the grinding rods 6 and the inner wall of the funnel 2 allows the edges of the grinding rods 6 to grind and scrape the raw material. The powder that meets the requirements flows down through the discharge port from the screen 20, effectively ensuring the activity of the ground product.
[0024] To facilitate the replacement of the grinding component 2, in the above embodiment, preferably: a rotating shaft 7 is provided on the outer wall of the support plate 5, a square insertion groove 8 is provided at the end of the rotating shaft 7, and a connecting fixing hole 9 is provided on the rotating shaft 7, the axis of the connecting fixing hole 9 being perpendicular to the axis of the square insertion groove 8.
[0025] A rotating shaft 7 on the outer wall of the support plate 5 near the motor 1 is connected to a transfer shaft 10. The transfer shaft 10 is connected to the drive shaft of the motor 1 via a coupling 11. The transfer shaft 10 is located on the right side wall of the funnel 3. A bearing b15 is provided between the transfer shaft 10 and the right side wall of the funnel 3. The left end of the transfer shaft 10 has a square shaft section b16. The square shaft section b16 is inserted into the square insertion slot 8 of the rotating shaft 7 on the outer wall of the support plate 5 near the motor 1, and then the rotating shaft 7 and the transfer shaft 10 are connected as one unit by bolts passing through the connection fixing holes 9 on the rotating shaft 7.
[0026] A rotating shaft 7 on the outer wall of the support plate 5 away from the motor 1 is connected to a support shaft 12. The support shaft 12 is located on the left side wall of the funnel 3. A bearing a13 is provided between the support shaft 12 and the left side wall of the funnel 3. The right end of the support shaft 12 has a square shaft section a14. The square shaft section a14 is inserted into the square insertion slot 8 of the rotating shaft 7 on the outer wall of the support plate 5 away from the motor 1, and then the rotating shaft 7 and the support shaft 12 are connected as one unit by bolts passing through the connecting fixing holes 9 on the rotating shaft 7.
[0027] To facilitate the replacement of the coolant in the grinding rod 6 of the replaced grinding assembly 2, in the above embodiment, preferably, a liquid supply pipe 17 is integrally provided on the side wall of the grinding rod 6, and a control valve 18 is provided on the liquid supply pipe 17. In this embodiment, liquid supply pipes 17 are provided on both side walls of the grinding rod 6. In specific implementation, the liquid supply pipes 17 and control valves 18 can be covered by a protective cover to prevent them from contacting the grinding materials. In specific implementation, the liquid supply pipes 17 and control valves 18 can also be replaced by a sealing head 21, which is threadedly connected to the connecting hole on the side wall of the grinding rod 6, as shown in the attached figure. Figure 2 As shown in the image.
[0028] In all the above embodiments, the components are commercially available products. The electronic control system uses conventional technology and is not described in detail; see attached figures. Figure 1 The control buttons and the display screen with PLC control chip shown above.
[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A rod-type grinding device, comprising a grinding assembly (2) driven by a motor (1), the grinding assembly (2) being located in a funnel (3) fixed to the side wall of a housing (4), the motor (1) being located inside the housing (4), and a screen (20) located above the discharge port (19) of the funnel (3); characterized in that: The grinding assembly (2) includes two circular support plates (5), and at least three grinding rods (6) are evenly distributed on the outer wall of the two support plates (5). The grinding rods (6) have a rectangular cross-section and a hollow inner cavity filled with coolant.
2. The rod-type grinding device according to claim 1, characterized in that: A rotating shaft (7) is provided on the outer wall of the support plate (5). A square insertion groove (8) is provided at the end of the rotating shaft (7). A connecting fixing hole (9) is provided on the rotating shaft (7). The axis of the connecting fixing hole (9) is perpendicular to the axis of the square insertion groove (8). A rotating shaft (7) on the outer wall of the support plate (5) near the motor (1) is connected to a transfer shaft (10). The transfer shaft (10) is connected to the drive shaft of the motor (1) via a coupling (11). The transfer shaft (10) is located on the right side wall of the funnel (3). A bearing b (15) is provided between the transfer shaft (10) and the right side wall of the funnel (3). The left end of the transfer shaft (10) has a square shaft section b (16). The square shaft section b (16) is inserted into the square insertion slot (8) of the rotating shaft (7) on the outer wall of the support plate (5) near the motor (1) and then the rotating shaft (7) and the transfer shaft (10) are connected as one unit by bolts passing through the connection fixing hole (9) on the rotating shaft (7). A rotating shaft (7) on the outer wall of the support plate (5) away from the motor (1) is connected to a support shaft (12). The support shaft (12) is located on the left side wall of the funnel (3). A bearing a (13) is provided between the support shaft (12) and the left side wall of the funnel (3). The right end of the support shaft (12) has a square shaft section a (14). The square shaft section a (14) is inserted into the square insertion slot (8) of the rotating shaft (7) on the outer wall of the support plate (5) away from the motor (1) and then the rotating shaft (7) and the support shaft (12) are connected as one unit by bolts passing through the connecting fixing hole (9) on the rotating shaft (7).
3. The rod-type grinding device according to claim 1, characterized in that: The grinding rod (6) has an integral liquid supply pipe (17) on its side wall, and a control valve (18) is provided on the liquid supply pipe (17).