A grinding device for pharmaceutical production

Abstract

The application relates to a grinding device for medicine production, relates to the medicine grinding technical field, and aims to improve the low grinding efficiency of manual water fly method. The grinding device for medicine production comprises a rack and a grinding disc rotatingly arranged on the rack, a driving assembly for driving the grinding disc to rotate is arranged on the rack, a grinding cavity is arranged in the grinding disc, and abrasive balls for grinding materials are arranged in the grinding cavity; a feeding pipe connected with the grinding cavity is arranged on the grinding disc, a feeding plug for closing the feeding pipe is arranged on the feeding pipe; a discharging pipe connected with the grinding cavity is arranged on the grinding disc, and a discharging valve for closing the discharging pipe is arranged on the discharging pipe. The application has the effect of improving the grinding efficiency of medicines.

Description

Technical Field

[0001] This application relates to the field of drug grinding technology, and in particular to a grinding apparatus for drug production. Background Technology

[0002] Water levigation is a method for producing extremely fine powders of mineral medicines. Specifically, it utilizes the different suspension properties of coarse and fine powders in water. Water-insoluble mineral medicines are co-ground with water, and after repeated grinding, an extremely fine powder is obtained. Water levigation removes impurities, purifies the medicine, and makes it more delicate for internal or external use. Furthermore, water prevents dust from being generated during grinding, thus avoiding environmental pollution, and it also removes water-soluble toxic substances from the medicine.

[0003] In related technologies, a specific operation for water-grinding calamine is as follows: Calamine and water are placed in a mortar, and the calamine in the mortar is ground using a pestle. The fine calamine powder gradually floats to the surface of the water, while the coarse powder remains at the bottom. Then, the water containing the fine calamine powder is poured out and collected, and the calamine in the mortar is ground again with added water. After several cycles, most of the calamine is turned into fine powder and floats to the surface of the water. After settling and removing the water, calamine powder is obtained.

[0004] Regarding the aforementioned technologies, the inventors discovered that the manual water-jetting method using a mortar and pestle is labor-intensive and inefficient, and therefore needs improvement. Summary of the Invention

[0005] In order to improve the grinding efficiency of drugs, this application provides a grinding apparatus for drug production.

[0006] The grinding apparatus for pharmaceutical production provided in this application adopts the following technical solution:

[0007] A grinding apparatus for pharmaceutical production includes a frame and a grinding disc rotatably mounted on the frame. The frame is equipped with a drive assembly for rotating the grinding disc. The grinding disc has a grinding cavity inside, and abrasive balls for grinding materials are disposed within the grinding cavity. A feed pipe communicating with the inside of the grinding cavity is provided on the grinding disc, and a feed plug for sealing the feed pipe is provided on the feed pipe. An outlet pipe communicating with the inside of the grinding cavity is provided on the grinding disc, and an outlet valve for sealing the outlet pipe is provided.

[0008] By adopting the above technical solution, the drive component drives the grinding disc to rotate. During the rotation of the grinding disc, the abrasive balls grind the material inside the grinding cavity. The ground material is discharged from the grinding disc through the discharge pipe. The equipment realizes rapid grinding of materials and improves the grinding efficiency of materials.

[0009] Preferably, the drive assembly includes a transmission gear ring, a drive gear, and a drive motor; the transmission gear ring is sleeved on the grinding disc, the drive gear is rotatably mounted on the frame, and the transmission gear ring and the drive gear mesh with each other; the drive motor is mounted on the frame to drive the drive gear to rotate.

[0010] By adopting the above technical solution, the output end of the drive motor drives the drive gear to rotate. The rotating drive gear uses the meshing transmission between the transmission gear ring and the drive gear to drive the transmission gear ring and the grinding disc to rotate.

[0011] Preferably, the grinding disc is provided with a grinding component and a fine grinding component arranged in sequence from the inside to the outside along the radial direction of the grinding disc. The grinding component, the fine grinding component and the grinding cavity are all interconnected. The grinding precision inside the grinding cavity, the grinding component and the fine grinding component gradually increases in sequence. The discharge pipe is connected to the interior of the fine grinding component.

[0012] By adopting the above technical solution, during the process of the grinding disc driving the material to rotate, the material inside the grinding cavity gradually moves from the grinding cavity to the grinding component and the fine grinding component under the action of centrifugal force. The abrasive balls, grinding component and fine grinding component perform grinding treatment on the material with different grinding precision, realizing graded grinding of the material, thereby improving the grinding efficiency of the material.

[0013] Preferably, the grinding assembly includes grinding balls and a filter screen; the grinding disc has a grinding ring cavity that communicates with the inside of the grinding cavity, the grinding balls are disposed inside the grinding ring cavity, and the filter screen is disposed at the connection between the grinding ring cavity and the grinding cavity.

[0014] By adopting the above technical solution, the filter screen screens the material inside the grinding cavity, intercepting materials larger than the filter screen aperture size, thus achieving the diversion of materials of different sizes inside the grinding cavity; materials smaller than the filter screen aperture size enter the grinding ring cavity and are further ground by the grinding balls, thus achieving graded grinding of materials.

[0015] Preferably, the fine grinding assembly includes a fixed sleeve, a fine grinding ring, and a connecting rod; the fixed sleeve is mounted on the frame, the grinding disc is located inside the fixed sleeve, the fixed sleeve is rotatably connected to the grinding disc, and the inner circumferential wall of the fixed sleeve has a guide ring groove communicating with the grinding ring cavity; the fine grinding ring is disposed on the inner circumferential wall of the fixed sleeve, and the connecting rod is disposed between the outer circumferential wall of the fine grinding ring and the inner circumferential wall of the guide ring groove, and the connecting rod is distributed at intervals along the circumference of the fine grinding ring; the end of the fine grinding ring away from the fixed sleeve is located inside the grinding ring cavity, and the distance between the inner sidewall of the grinding ring cavity and the sidewall in the thickness direction of the fine grinding ring gradually decreases from the inside to the outside along the radial direction of the fine grinding ring; the discharge pipe is located at the bottom of the fixed sleeve, and the end of the discharge pipe facing the grinding disc is connected to the inside of the guide ring groove.

[0016] By adopting the above technical solution, the rotating grinding disc rotates relative to the fine grinding ring inside the fixed sleeve. Under the action of centrifugal force, the material inside the grinding ring cavity gradually flows into the space between the grinding ring cavity and the side wall of the fine grinding ring. The material is ground by utilizing the relative rotation between the inner wall of the grinding ring cavity and the side wall of the fine grinding ring. Furthermore, by gradually reducing the distance between the inner wall of the grinding ring cavity and the side wall of the fine grinding ring, gradient-type graded grinding of the material is achieved, further improving the grinding efficiency and effect of the material.

[0017] Preferably, the fine grinding assembly further includes several sets of fine grinding balls, and several sets of mounting grooves are formed on the side wall of the fine grinding ring in the thickness direction. All the mounting grooves are distributed at radial intervals along the fine grinding ring. The fine grinding balls are arranged in a one-to-one correspondence with the mounting grooves, and each fine grinding ball is rolled inside the corresponding mounting groove.

[0018] By adopting the above technical solution, the fine grinding balls arranged at intervals further grind the material between the inner wall of the grinding ring cavity and the side wall of the fine grinding ring, so as to facilitate efficient grinding of the material.

[0019] Preferably, the frame is provided with an auxiliary support assembly to assist in supporting the rotation of the grinding disc.

[0020] By adopting the above technical solution, the auxiliary support component provides auxiliary support for the rotating grinding disc, reducing the phenomenon of tilting and shaking of the rotating grinding disc; in addition, the auxiliary support component provides preliminary support for the grinding disc, which facilitates the subsequent installation of the drive component and the fine grinding component.

[0021] Preferably, the auxiliary support assembly includes an auxiliary support frame and several sets of auxiliary support rollers; the auxiliary support frame is disposed on the machine frame and is located between the grinding disc and the machine frame, all the auxiliary support rollers are rotatably disposed on the side wall of the auxiliary support frame facing the grinding disc, and the side wall of each auxiliary support roller abuts against the outer peripheral wall of the grinding disc.

[0022] By adopting the above technical solution, the auxiliary support frame provides support for the grinding disc, and the rotating auxiliary support roller reduces the friction between the grinding disc and the auxiliary support frame, so as to realize the auxiliary support component to provide auxiliary support for the rotating grinding disc.

[0023] Preferably, the auxiliary support frame is provided with an impact component for impacting the fixing sleeve.

[0024] By adopting the above technical solution, the impact component impacts the fixed sleeve, causing the fixed sleeve to shake, which promotes the material fluid that has been ground and is attached to the guide ring groove to flow quickly into the discharge pipe at the bottom of the fixed sleeve, thereby improving the material discharge efficiency, further improving the material grinding efficiency, and reducing the amount of material adhering to the inner wall of the guide ring groove, thus reducing material waste.

[0025] Preferably, the impact assembly includes an impact rod, a reset ring plate, a reset component, and a drive rod; the auxiliary support frame has a through-hole, and the impact rod is slidably disposed inside the mounting hole for impacting the fixing sleeve; the reset ring plate is sleeved on the impact rod, and a sliding groove for sliding the reset ring plate is formed on the inner sidewall of the mounting hole; the reset component is sleeved on the impact rod, one end of the reset component abuts against the sidewall of the reset ring plate facing the fixing sleeve, and the other end of the reset component abuts against the inner sidewall of the sliding groove, so as to drive the impact rod away from the fixing sleeve by its own elastic force; the drive rod is disposed on the sidewall of the grinding disc, and the drive rod can abut against the end of the impact rod away from the fixing sleeve; the sidewall of the impact rod away from the fixing sleeve has a guide surface for the drive rod to push the impact rod to impact the fixing sleeve.

[0026] By adopting the above technical solution, the rotating grinding disc drives the drive rod to move, the drive rod strikes the guide surface of the impact rod, causing the impact rod to strike the fixed sleeve, and causing the reset component to deform and contract; after the rotating drive rod and the impact rod are misaligned, the reset component restores its deformation, causing the impact rod to gradually return to its original position, so that it can strike the impact rod again after the drive rod rotates one revolution, thereby realizing continuous impact on the fixed sleeve, thus improving the material collection efficiency inside the guide ring groove, reducing the need for an additional power source to drive the impact rod to move, and realizing the linkage between the grinding disc and the impact component.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting a drive component to drive the grinding disc to rotate, the grinding disc rotates and the abrasive balls grind the material inside the grinding cavity. The ground material is discharged from the grinding disc through the discharge pipe. The equipment realizes rapid grinding of materials and improves the grinding efficiency of materials.

[0029] 2. By setting up abrasive balls, grinding components, and fine grinding components to perform grinding treatments on materials with different grinding precisions, graded grinding of materials is achieved, thereby improving the grinding efficiency of materials;

[0030] 3. By setting an impact component to impact the fixed sleeve, the fixed sleeve is made to shake, which promotes the material fluid that has been ground and is attached to the guide ring groove to flow quickly into the discharge pipe at the bottom of the fixed sleeve. This improves the material discharge efficiency, further improves the material grinding efficiency, and reduces the amount of material adhering to the inner wall of the guide ring groove, thus reducing material waste. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a grinding apparatus for drug production according to an embodiment of this application.

[0032] Figure 2 It is a cross-sectional schematic diagram used to illustrate the connection relationship between the grinding component and the fine grinding component.

[0033] Figure 3 It is a cross-sectional schematic diagram used to illustrate the internal structure of the grinding disc.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Frame; 2. Grinding disc; 21. Grinding cavity; 211. Abrasive ball; 22. Feed pipe; 221. Feed plug; 23. Discharge pipe; 231. Discharge valve; 24. Grinding ring cavity; 3. Drive assembly; 31. Transmission gear ring; 32. Drive gear; 33. Drive motor; 4. Grinding assembly; 41. Grinding ball; 42. Filter screen; 5. Fine grinding assembly; 51. Fixing sleeve; 511. Guide ring groove; 52. Fine grinding ring; 521. Mounting groove; 53. Connecting rod; 54. Fine grinding ball; 6. Auxiliary support assembly; 61. Auxiliary support frame; 611. Mounting hole; 612. Sliding groove; 62. Auxiliary support roller; 7. Impact assembly; 71. Impact rod; 711. Guide surface; 72. Reset ring plate; 73. Reset component; 74. Drive rod. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0037] This application discloses a grinding apparatus for drug production to improve the grinding efficiency of drugs.

[0038] Reference Figure 1 and Figure 2A grinding apparatus for pharmaceutical production includes a frame 1 and a grinding disc 2 rotatably connected to the frame 1 via a rotating shaft. In this embodiment, the grinding disc 2 is cylindrical. A grinding cavity 21 is formed inside the grinding disc 2. In this embodiment, the grinding cavity 21 can be a cylindrical cavity. Several sets of stainless steel abrasive balls 211 are installed inside the grinding cavity 21 for grinding materials. A feed pipe 22 is installed on the grinding disc 2. One end of the feed pipe 22 is located outside the grinding disc 2, and the other end of the feed pipe 22 communicates with the inside of the grinding cavity 21 for introducing the material to be ground into the grinding cavity 21. A feed plug 221 is installed at the end of the feed pipe 22 away from the grinding disc 2 for sealing the feed pipe 22.

[0039] Reference Figure 1 and Figure 2 A drive assembly 3 is mounted on the frame 1 to drive the grinding disc 2 to rotate. In this embodiment, the drive assembly 3 is symmetrically distributed on both sides of the grinding disc 2 in the width direction. The drive assembly 3 includes a transmission gear ring 31, a drive gear 32, and a drive motor 33. The transmission gear ring 31 is fixedly sleeved 51 and attached to the outer peripheral wall of the grinding disc 2. The drive motor 33 is fixedly mounted on the frame 1. The drive gear 32 is fixedly sleeved 51 and attached to the output end of the drive motor 33. The drive gear 32 meshes with the transmission gear ring 31, so that the rotating drive gear ring drives the transmission gear ring 31 and the grinding disc 2 to rotate.

[0040] Reference Figure 2 and Figure 3 The grinding disc 2 is equipped with a grinding component 4 and a fine grinding component 5 for grinding materials. The grinding component 4 and the fine grinding component 5 are distributed from the inside to the outside along the radial direction of the grinding disc 2. The grinding cavity 21, the grinding component 4 and the fine grinding component 5 are interconnected, and the grinding precision inside the grinding cavity 21, the grinding component 4 and the fine grinding component 5 gradually increases in sequence.

[0041] Reference Figure 2 and Figure 3 The grinding assembly 4 includes a grinding ball 41 and a filter screen 42. A grinding ring cavity 24 is formed inside the grinding disc 2, surrounding the outer peripheral wall of the grinding cavity 21, and the grinding ring cavity 24 is connected to the interior of the grinding cavity 21. In this embodiment, the grinding ball 41 may be made of stainless steel and is placed inside the grinding ring cavity 24. The filter screen 42 is fixedly connected to the connection between the grinding cavity 21 and the grinding ring cavity 24.

[0042] Reference Figure 2 and Figure 3The fine grinding assembly 5 includes a fixed sleeve 51, a fine grinding ring 52, a connecting rod 53, and several sets of fine grinding balls 54. The fixed sleeve 51 is fixedly connected to the frame 1 and covers the outer periphery of the grinding disc 2. The inner peripheral wall of the fixed sleeve 51 is rotatably connected to the outer peripheral wall of the grinding disc 2, and a guide ring groove 511 is formed on the inner peripheral wall of the fixed sleeve 51, which communicates with the interior of the grinding ring cavity 24. A discharge pipe 23 is fixedly inserted into the bottom of the fixed sleeve 51, and the end of the discharge pipe 23 communicates with the interior of the guide ring groove 511, so that the discharge pipe 23 communicates with the interior of the grinding cavity 21 and the grinding ring cavity 24. A discharge valve 231 is installed at the end of the discharge pipe 23 away from the fixed sleeve 51 to control the opening and closing state of the discharge pipe 23.

[0043] Reference Figure 2 and Figure 3 The connecting rods 53 are fixedly connected to the inner circumferential wall of the guide ring groove 511, and the connecting rods 53 are distributed at intervals along the circumference of the fixing sleeve 51. The fine grinding ring 52 is fixedly connected to the ends of all the connecting rods 53 facing the grinding disk 2, and the end of the fine grinding ring 52 away from the connecting rods 53 is located inside the grinding ring cavity 24. The spacing between the inner sidewalls in the thickness direction inside the grinding ring cavity 24 gradually increases towards the fixing sleeve 51, and the spacing between the inner sidewall of the grinding ring cavity 24 and the sidewall in the thickness direction of the fine grinding ring 52 gradually decreases towards the fixing sleeve 51, thereby increasing the grinding accuracy inside the grinding ring cavity 24.

[0044] Reference Figure 2 and Figure 3 Several sets of mounting grooves 521 are formed on the sidewalls on both sides of the grinding ring 52 in the thickness direction. All mounting grooves 521 are distributed at intervals along the circumference of the grinding ring 52, and all mounting grooves 521 are distributed at intervals along the radial direction of the grinding ring 52. In this embodiment, the grinding balls 54 are respectively arranged in a one-to-one correspondence with the mounting grooves 521. Each set of grinding balls 54 is rolled and installed inside the corresponding mounting groove 521 to facilitate grinding of materials.

[0045] Reference Figure 1 and Figure 2 An auxiliary support assembly 6 is installed on the frame 1 to provide auxiliary support for the rotating grinding disc 2 on the frame 1. The auxiliary support assembly 6 includes an auxiliary support frame 61 and several sets of auxiliary support rollers 62. The auxiliary support frame 61 is fixedly connected to the frame 1 and is distributed on both sides of the grinding disc 2 in the width direction, with the sidewalls of the auxiliary support frame 61 facing the grinding disc 2 matching the outer peripheral wall of the grinding disc 2. All the auxiliary support rollers 62 are rotatably connected to the sidewalls of the auxiliary support frame 61 facing the grinding disc 2, and are spaced apart along the length direction of the auxiliary support frame 61. The peripheral wall of each set of auxiliary support rollers 62 abuts against the outer peripheral wall of the grinding disc 2 to support the grinding disc 2.

[0046] Reference Figure 1and Figure 2 An impact assembly 7 is mounted on the auxiliary support frame 61 for impacting the fixed sleeve 51. The impact assembly 7 includes an impact rod 71, a reset ring plate 72, a reset member 73, and a drive rod 74. The auxiliary support frame 61 has a through mounting hole 611 along its thickness direction. The impact rod 71 is slidably inserted into the mounting hole 611. One end of the impact rod 71 can abut against the side wall of the fixed sleeve 51, and the other end of the impact rod 71 can be exposed on the side of the auxiliary support frame 61 away from the fixed sleeve 51.

[0047] Reference Figure 1 and Figure 2 The drive rod 74 is fixedly connected to the outer peripheral wall of the grinding disc 2, and the drive rod 74 can abut against the end of the impact rod 71 away from the fixed sleeve 51. The side wall of the impact rod 71 away from the fixed sleeve 51 is provided with a guide surface 711 so that the drive rod 74 abuts against the impact rod 71 and drives the impact rod 71 to impact the fixed sleeve 51.

[0048] Reference Figure 1 and Figure 2 The reset ring plate 72 is integrally formed on the peripheral wall of the impact rod 71. A sliding groove 612 is provided on the inner side wall of the mounting hole 611 for the reset ring plate 72 to abut against, allowing the reset ring plate 72 to move along with the impact rod 71. In this embodiment, the reset member 73 can be a spring. The reset member 73 is sleeved on the impact rod 71 and located inside the sliding groove 612. One end of the reset member 73 is glued to the inner wall of the sliding groove 612, and the other end is glued to the side wall of the reset ring plate 72 facing the fixed sleeve 51. The spring force of the reset member 73 drives the reset ring plate 72 to move the impact rod 71 away from the fixed sleeve 51, thereby achieving the reset of the impact rod 71.

[0049] The implementation principle of a grinding device for drug production according to an embodiment of this application is as follows:

[0050] The material is introduced into the grinding cavity 21 through the feed pipe 22, and the feed pipe 22 is sealed by the feed plug 221. The drive motor 33 is started, and the output end of the drive motor 33 drives the drive gear 32 to rotate. The rotating drive gear 32 drives the transmission gear ring 31 and the grinding disc 2 to rotate.

[0051] During the rotation of the grinding disc 2, the abrasive balls 211 perform preliminary grinding on the material inside the grinding cavity 21. When the size of the material is smaller than the aperture size of the filter screen 42, the material inside the grinding cavity 21 passes through the filter screen 42 under the action of centrifugal force and enters the grinding ring cavity 24, where the grinding balls 41 perform higher-level grinding on the material.

[0052] The rotating grinding disc 2 rotates relative to the fine grinding ring 52, further refining the material that passes between the grinding ring cavity 24 and the fine grinding ring 52 under the action of centrifugal force, thus realizing the graded grinding of the material. Finally, the material is discharged from the grinding disc 2 through the discharge pipe 23 to facilitate the collection of the material, thereby achieving efficient grinding of the material.

[0053] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grinding apparatus for pharmaceutical production, characterized in that: The device includes a frame (1) and a grinding disc (2) rotatably mounted on the frame (1). The frame (1) is provided with a drive assembly (3) for driving the grinding disc (2) to rotate. The grinding disc (2) has a grinding cavity (21) inside, and abrasive balls (211) for grinding materials are provided inside the grinding cavity (21). The grinding disc (2) is provided with a feed pipe (22) communicating with the inside of the grinding cavity (21), and a feed plug (221) for closing the feed pipe (22) is provided on the feed pipe (22). The grinding disc (2) is provided with a discharge pipe (23) communicating with the inside of the grinding cavity (21), and a discharge valve (231) for closing the discharge pipe (23) is provided on the discharge pipe (23). The grinding disc (2) is provided with a grinding component (4) and a fine grinding component (5) arranged in sequence from the inside to the outside along the radial direction of the grinding disc (2). The grinding component (4), the fine grinding component (5) and the grinding cavity (21) are all interconnected. The grinding precision inside the grinding cavity (21), the grinding component (4) and the fine grinding component (5) gradually increases in sequence. The discharge pipe (23) is connected to the fine grinding component (5). The grinding assembly (4) includes a grinding ball (41) and a filter screen (42); the grinding disc (2) has a grinding ring cavity (24) that communicates with the inside of the grinding cavity (21) around the grinding cavity (21), the grinding ball (41) is disposed inside the grinding ring cavity (24), and the filter screen (42) is disposed at the communication between the grinding ring cavity (24) and the grinding cavity (21); The fine grinding assembly (5) includes a fixed sleeve (51), a fine grinding ring (52), and a connecting rod (53); the fixed sleeve (51) is mounted on the frame (1), the grinding disc (2) is located inside the fixed sleeve (51), the fixed sleeve (51) is rotatably connected to the grinding disc (2), and the inner peripheral wall of the fixed sleeve (51) is provided with a guide ring groove (511) communicating with the grinding ring cavity (24); the fine grinding ring (52) is mounted on the inner peripheral wall of the fixed sleeve (51), and the connecting rod (53) is mounted on the outer peripheral wall of the fine grinding ring (52) and the guide ring. Between the inner peripheral walls of the groove (511), and the connecting rods (53) are distributed at intervals along the circumference of the fine grinding ring (52); the end of the fine grinding ring (52) away from the fixed sleeve (51) is located inside the grinding ring cavity (24), and the distance between the inner side wall of the grinding ring cavity (24) and the side wall in the thickness direction of the fine grinding ring (52) gradually decreases from the inside to the outside along the radial direction of the fine grinding ring (52); the discharge pipe (23) is located at the bottom of the fixed sleeve (51), and the end of the discharge pipe (23) facing the grinding disc (2) is connected to the inside of the guide ring groove (511).

2. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: The drive assembly (3) includes a transmission gear ring (31), a drive gear (32), and a drive motor (33); the transmission gear ring (31) is sleeved on the grinding disc (2), the drive gear (32) is rotatably mounted on the frame (1), and the transmission gear ring (31) and the drive gear (32) mesh with each other; the drive motor (33) is mounted on the frame (1) to drive the drive gear (32) to rotate.

3. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: The fine grinding assembly (5) also includes several sets of fine grinding balls (54). Several sets of mounting grooves (521) are provided on the side wall of the fine grinding ring (52) in the thickness direction. All the mounting grooves (521) are distributed at radial intervals along the fine grinding ring (52). The fine grinding balls (54) are arranged in a one-to-one correspondence with the mounting grooves (521), and each fine grinding ball (54) is rolled inside the corresponding mounting groove (521).

4. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: The frame (1) is provided with an auxiliary support assembly (6) to assist in supporting the rotation of the grinding disc (2).

5. A grinding apparatus for pharmaceutical production according to claim 4, characterized in that: The auxiliary support assembly (6) includes an auxiliary support frame (61) and several sets of auxiliary support rollers (62); the auxiliary support frame (61) is disposed on the frame (1) and is located between the grinding disc (2) and the frame (1); all the auxiliary support rollers (62) are rotatably disposed on the side wall of the auxiliary support frame (61) facing the grinding disc (2), and the side wall of each auxiliary support roller (62) abuts against the outer peripheral wall of the grinding disc (2).

6. A grinding apparatus for pharmaceutical production according to claim 5, characterized in that: The auxiliary support frame (61) is provided with an impact assembly (7) for impacting the fixed sleeve (51).

7. A grinding apparatus for pharmaceutical production according to claim 6, characterized in that: The impact assembly (7) includes an impact rod (71), a reset ring plate (72), a reset component (73), and a drive rod (74); the auxiliary support frame (61) has a through mounting hole (611), and the impact rod (71) is slidably disposed inside the mounting hole (611) for impacting the fixing sleeve (51); the reset ring plate (72) is sleeved on the impact rod (71), and the inner sidewall of the mounting hole (611) has a sliding groove (612) for the reset ring plate (72) to slide; the reset component (73) is sleeved on the impact rod (71), and the reset component (73) has a sliding groove (612) for the reset ring plate (72) to slide on. One end of the reset member (73) abuts against the side wall of the reset ring plate (72) facing the fixed sleeve (51), and the other end of the reset member (73) abuts against the inner side wall of the sliding groove (612) so as to drive the impact rod (71) away from the fixed sleeve (51) by its own elastic force; the drive rod (74) is provided on the side wall of the grinding disc (2), and the drive rod (74) can abut against the end of the impact rod (71) away from the fixed sleeve (51). The side wall of the impact rod (71) away from the fixed sleeve (51) is provided with a guide surface (711) for the drive rod (74) to push the impact rod (71) to impact the fixed sleeve (51).

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