Raw material crusher for preparing oseltamivir phosphate dry suspension
By designing a multi-stage pulverizer, utilizing a filter screen for screening and a multi-stage gear-driven grinding wheel, the problem of low efficiency in processing large-particle raw materials by traditional pulverizers is solved, achieving efficient raw material pulverization and mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional raw material crushers are inefficient when processing large raw materials, requiring pre-crushing, which affects the overall crushing efficiency.
A pulverizer comprising a primary filter box and a multi-stage pulverizing chamber was designed. Large particles of raw materials are screened through a filter screen, and multi-stage grinding wheels are driven by a multi-stage gear and a drive motor to achieve multi-stage pulverization and improve pulverization efficiency.
Multi-stage crushing and sieving significantly improves the efficiency of raw material crushing and ensures uniform mixing of raw materials.
Smart Images

Figure CN224072092U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of oseltamivir phosphate dry suspension preparation technology, and particularly relates to a raw material pulverizer for the preparation of oseltamivir phosphate dry suspension. Background Technology
[0002] The raw materials for oseltamivir phosphate dry suspension need to be pulverized before processing to ensure uniform mixing. Traditional raw material pulverizers directly pulverize the raw materials. If there are large-volume raw materials, it will affect the pulverization efficiency. Therefore, it is necessary to screen out the raw materials and perform pre-pulverization. Thus, a raw material pulverizer for the preparation of oseltamivir phosphate dry suspension is proposed. Utility Model Content
[0003] The purpose of this invention is to provide a raw material pulverizer for preparing oseltamivir phosphate dry suspension, so as to solve the problems mentioned in the background art.
[0004] A raw material pulverizer for preparing oseltamivir phosphate dry suspension includes a pulverizing chamber, which is divided into a first pulverizing chamber and a second pulverizing chamber. A primary filter box is fixedly connected to the pulverizing chamber, a connecting frame is fixedly connected to the primary filter box, a first reinforcing frame is fixedly connected to the connecting frame, a first drive motor is fixedly mounted on the first reinforcing frame, a first rotating shaft is rotatably connected to the connecting frame, the first rotating shaft is connected to the output shaft of the first drive motor, a filter screen is fixedly connected to the first rotating shaft, a third reinforcing frame is fixedly connected to the pulverizing chamber, a second drive motor is fixedly mounted on the third reinforcing frame, a second rotating shaft is rotatably connected to the first pulverizing chamber, and a first drive motor is connected to the second rotating shaft. A gear is connected to the first crushing chamber, and a third shaft is rotatably connected to the first crushing chamber. The third shaft is connected to the output shaft of the second drive motor, and a second gear is connected to the third shaft. The first gear meshes with the second gear. Grinding wheels are connected to both the second and third shafts. A fourth reinforcing frame is fixedly connected to the crushing chamber, and a third drive motor is fixedly mounted on the fourth reinforcing frame. A fourth shaft is rotatably connected to the second crushing chamber, and the fourth shaft is connected to the output shaft of the third drive motor. A third gear is connected to the fourth shaft. A fifth shaft is rotatably connected to the second crushing chamber, and a fourth gear is connected to the fifth shaft. The third gear meshes with the fourth gear. Grinding wheels are connected to both the fourth and fifth shafts.
[0005] Furthermore, multiple sliding connecting frames are fixedly connected to the crushing chamber, and two second reinforcing frames are fixedly connected to the primary filter chamber. An electric push rod is fixedly installed on the second reinforcing frame, a connecting rod is connected to the telescopic rod of the electric push rod, and a support frame is connected to the connecting rod. The support frame is slidably connected to the sliding connecting frame.
[0006] The beneficial effects of this utility model are:
[0007] This invention uses a filter screen to block larger raw materials, thereby screening them. Then, a first drive motor drives a first rotating shaft and a filter screen to rotate and tilt, causing the screened raw materials to slide into a first grinding chamber. The grinding and crushing wheels pre-crush the raw materials, thereby improving the crushing efficiency. Attached Figure Description
[0008] Figure 1 This is a three-dimensional structural schematic diagram of the raw material pulverizer for preparing oseltamivir phosphate dry suspension according to this utility model;
[0009] Figure 2 This is a first sectional three-dimensional structural diagram of the primary filter box;
[0010] Figure 3 This is a second cross-sectional three-dimensional structural diagram of the primary filter box;
[0011] Figure 4 This is a first cross-sectional three-dimensional structural diagram of the crushing chamber;
[0012] Figure 5 This is a second cross-sectional three-dimensional structural diagram of the crushing chamber.
[0013] In the diagram, 1-grinding chamber, 101-first grinding chamber, 102-second grinding chamber, 2-primary filter box, 3-connecting and fixing frame, 4-first reinforcing frame, 5-first drive motor, 6-first rotating shaft, 7-filter screen, 8-sliding connecting frame, 9-second reinforcing frame, 10-electric push rod, 11-connecting rod, 12-support frame, 13-third reinforcing frame, 14-second drive motor, 15-second rotating shaft, 16-first gear, 17-third rotating shaft, 18-second gear, 19-grinding and crushing wheel, 20-fourth reinforcing frame, 21-third drive motor, 22-fourth rotating shaft, 23-third gear, 24-fifth rotating shaft, 25-fourth gear, 26-processing and crushing wheel. Detailed Implementation
[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0015] like Figures 1 to 5The present invention discloses a raw material pulverizer for preparing oseltamivir phosphate dry suspension, comprising a pulverizing chamber 1, which is divided into a first pulverizing chamber 101 and a second pulverizing chamber 102. A primary filter box 2 is fixedly connected to the pulverizing chamber 1, a connecting frame 3 is fixedly connected to the primary filter box 2, a first reinforcing frame 4 is fixedly connected to the connecting frame 3, a first drive motor 5 is fixedly mounted on the first reinforcing frame 4, a first rotating shaft 6 is rotatably connected to the connecting frame 3, the first rotating shaft 6 is connected to the output shaft of the first drive motor 5, a filter screen 7 is fixedly connected to the first rotating shaft 6, and the filter screen 7 is used to screen the raw materials. A third reinforcing frame 13 is fixedly connected to the pulverizing chamber 1, a second drive motor 14 is fixedly mounted on the third reinforcing frame 13, a second rotating shaft 15 is rotatably connected to the first pulverizing chamber 101, a first gear 16 is connected to the second rotating shaft 15, and a second drive motor 14 is rotatably connected to the first pulverizing chamber 101. Three rotating shafts 17 are connected to the output shaft of the second drive motor 14. A second gear 18 is connected to the third rotating shaft 17, and the first gear 16 meshes with the second gear 18. Grinding wheels 19 are connected to both the second rotating shaft 15 and the third rotating shaft 17. The grinding wheels 19 are used to crush the raw materials. A fourth reinforcing frame 20 is fixedly connected to the crushing chamber 1. A third drive motor 21 is fixedly installed on the fourth reinforcing frame 20. A fourth rotating shaft 22 is rotatably connected to the second crushing chamber 102. The fourth rotating shaft 22 is connected to the output shaft of the third drive motor 21. A third gear 23 is connected to the fourth rotating shaft 22. A fifth rotating shaft 24 is rotatably connected to the second crushing chamber 102. A fourth gear 25 is connected to the fifth rotating shaft 24, and the third gear 23 meshes with the fourth gear 25. Processing wheels 26 are connected to both the fourth rotating shaft 22 and the fifth rotating shaft 24. The processing wheels 26 are used to crush the raw materials.
[0016] Multiple sliding connecting frames 8 are fixedly connected to the crushing box 1. Two second reinforcing frames 9 are fixedly connected to the primary filter box 2. An electric push rod 10 is fixedly installed on the second reinforcing frame 9. A connecting rod 11 is connected to the telescopic rod of the electric push rod 10. A support frame 12 is connected to the connecting rod 11. The support frame 12 is slidably connected to the sliding connecting frames 8. The support frame 12 is used to support the filter screen 7.
[0017] The working principle of this utility model is as follows: After the raw material is put into the primary filter box, the filter screen will block the raw material with a large volume, while the raw material with a standard volume will fall into the second crushing chamber through the filter screen. The third drive motor will drive the fourth rotating shaft, the third gear, the fifth rotating shaft, the fourth gear and the processing crushing wheel to rotate, so that the processing crushing wheel crushes the raw material. The crushed raw material slides out through the bottom of the second crushing chamber.
[0018] When the raw material on the filter screen plate accumulates to a certain extent, the electric push rod drives the connecting rod and support frame to move outward, causing the support frame to detach from the bottom of the filter screen plate. Then, the first drive motor drives the first rotating shaft and the filter screen plate to rotate, causing the filter screen plate to tilt. The raw material on the filter screen plate will slide and fall into the first grinding chamber. The second drive motor will drive the second rotating shaft, the first gear, the third rotating shaft, the second gear, and the grinding wheel to rotate. The grinding wheel will grind the raw material, and the ground raw material will slide out through the bottom of the first grinding chamber.
[0019] After all the raw material on the filter screen slides out, the first drive motor drives the first rotating shaft and the filter screen to rotate in opposite directions to reset. Then, the electric push rod drives the connecting rod and the support frame to move inward to reset, so that the support frame supports the filter screen and increases the load-bearing capacity of the filter screen.
[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A raw material pulverizer for preparing oseltamivir phosphate dry suspension, characterized in that: The raw material pulverizer for preparing oseltamivir phosphate dry suspension includes a pulverizing chamber, which is divided into a first pulverizing chamber and a second pulverizing chamber. A primary filter box is fixedly connected to the pulverizing chamber, and a connecting frame is fixedly connected to the primary filter box. A first reinforcing frame is fixedly connected to the connecting frame, and a first drive motor is fixedly mounted on the first reinforcing frame. A first rotating shaft is rotatably connected to the connecting frame and connected to the output shaft of the first drive motor. A filter screen is fixedly connected to the first rotating shaft. A third reinforcing frame is fixedly connected to the pulverizing chamber, and a second drive motor is fixedly mounted on the third reinforcing frame. A second rotating shaft is rotatably connected to the first pulverizing chamber, and a first tooth is connected to the second rotating shaft. The first grinding chamber is rotatably connected to a third shaft, which is connected to the output shaft of a second drive motor. A second gear is connected to the third shaft, and the first gear meshes with the second gear. Grinding wheels are connected to both the second and third shafts. A fourth reinforcing frame is fixedly connected to the grinding chamber, and a third drive motor is fixedly mounted on the fourth reinforcing frame. A fourth shaft is rotatably connected to the second grinding chamber, which is connected to the output shaft of the third drive motor. A third gear is connected to the fourth shaft. A fifth shaft is rotatably connected to the second grinding chamber, and a fourth gear is connected to the fifth shaft, with the third gear meshing with the fourth gear. Processing wheels are connected to both the fourth and fifth shafts.
2. The raw material pulverizer for preparing oseltamivir phosphate dry suspension according to claim 1, characterized in that: The crushing chamber is fixedly connected to multiple sliding connecting frames, and the primary filter chamber is fixedly connected to two secondary reinforcing frames. An electric push rod is fixedly installed on the secondary reinforcing frame. A connecting rod is connected to the telescopic rod of the electric push rod, and a support frame is connected to the connecting rod. The support frame is slidably connected to the sliding connecting frame.