A granule particle size grading precision control device
By designing a worm gear drive and an electric cylinder auxiliary rod, the problems of high cost and large space required in existing devices are solved, enabling precise control of granule particle size classification and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG KONGSHENGTANG PHARMA
- Filing Date
- 2025-07-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing granule grading control devices require multiple screens of different sizes, resulting in high costs, large space requirements, and an inability to achieve precise control.
The screen hole adjustment is achieved by using a worm gear transmission system and an electric motor, combined with an electric cylinder auxiliary rod to achieve precise control of the screen hole size, and a hexagonal fixing screw structure is designed for easy disassembly and maintenance.
It achieves precise adjustment of screen aperture size and stable power transmission, ensuring accurate control of the equipment even in the event of a malfunction, simplifying the maintenance process, and reducing costs and space occupation.
Smart Images
Figure CN224486616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of granule processing technology, and in particular to a device for precise control of granule particle size classification. Background Technology
[0002] Granules are dry granular preparations made by mixing drugs with suitable excipients and granulating them using granulation technology. During the granule processing, particle size needs to be graded and screened, which requires the use of grading control devices.
[0003] Existing devices require multiple screens of different sizes for grading control, which is costly and space-consuming; existing devices cannot achieve precise control of particle grading through multiple methods. Utility Model Content
[0004] This utility model relates to a precise particle size control device for granules, which solves the problems of existing devices that require multiple screens of different sizes for control during grading, resulting in high costs and large space requirements; and existing devices cannot achieve precise particle grading control through multiple methods.
[0005] This utility model provides a precise particle size control device for granule grading, specifically including: a first screening seat and a second fixed seat; a first fixed seat is welded to the left and right sides of the outer wall of the first screening seat, and two fixing screws are inserted into each first fixed seat, with all four fixing screws fixed to the inner wall of the grading equipment; the bottom of the first screening seat has sieve holes arranged in an array; the second fixed seat is fixed to the inner wall of the equipment by the four fixing screws, and a rotating shaft is rotatably mounted on the second fixed seat, with a second screening seat welded to one end of the shaft. The second screening seat is sleeved inside the first screening seat, and the bottom end face of the second screening seat is in contact with the bottom end face of the inner wall of the first screening seat. The bottom of the second screening seat also has sieve holes arranged in an annular array, and the positions of the sieve holes on the second screening seat and the sieve holes on the first screening seat are aligned.
[0006] Furthermore, a worm gear is welded onto the rotating shaft, and a worm rotates on the second fixed seat, with the worm meshing with the worm gear.
[0007] Furthermore, a motor is fixed on the second fixed base, and the output shaft of the motor is fixed on the worm gear.
[0008] Furthermore, the adjustment points of the eight fixing screws are all hexagonal structures, and each fixing screw has an adjustment groove, with all eight adjustment grooves being hexagonal groove-shaped structures.
[0009] Furthermore, two electric cylinders are fixed to the bottom end of the second fixed seat. The extended ends of the two electric cylinders are fixed to the seat body. Auxiliary rods are welded in an array on the top surface of the seat body. The auxiliary rods match the screen holes and are aligned with the screen holes. When the two electric cylinders retract, the auxiliary rods pass through the screen holes on the second screening seat and the first screening seat.
[0010] Furthermore, the auxiliary rods welded in an array are all cylindrical rod-shaped structures, and the upper end of each auxiliary rod is polished, resulting in an arc-shaped upper end for each auxiliary rod.
[0011] This invention provides a device for precise control of particle size classification in granules, which has the following beneficial effects:
[0012] In terms of screen aperture size control, the device drives the worm gear and worm wheel to mesh with the motor, which in turn drives the rotating shaft to rotate. This causes the screen apertures on the second screening seat and the first screening seat to gradually shift, thus achieving precise adjustment of the screen aperture size. This transmission method provides stable power transmission and can accurately control the rotation angle, thereby precisely controlling the screen aperture size to meet the requirements of different particle size classification.
[0013] When the motor malfunctions and cannot work properly, the device is equipped with an emergency precision control mechanism. The two electric cylinders retract, and the auxiliary rod passes through the screen hole, which can also precisely control the size of the screen hole. The arc-shaped top of the auxiliary rod, which is polished, can not only ensure a tight fit with the screen hole, but also avoid damage to the screen hole during insertion and withdrawal, thus ensuring the accuracy of the control process and the integrity of the equipment.
[0014] In terms of disassembly and maintenance of the fixed screw, the hexagonal structure and adjustment groove design of its adjustment point provide double protection for disassembly operations; even if the adjustment point is deformed, emergency disassembly can be achieved by inserting a hexagonal wrench into the adjustment groove, ensuring that the equipment can be disassembled smoothly when maintenance is needed, repairing faults in a timely manner, maintaining the accuracy of screen hole control and the normal operation of the equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0017] In the attached diagram:
[0018] Figure 1 This is a schematic diagram of the axial view structure of the granule particle size classification precision control device of this utility model;
[0019] Figure 2This is a schematic diagram of the main structure of the granule particle size classification precision control device of this utility model;
[0020] Figure 3 This utility model is shown Figure 2 A magnified structural diagram at point A;
[0021] Figure 4 A schematic diagram of the axial view of the first and second screening seats of this utility model is shown.
[0022] Figure 5 This shows a partially cut-out axial view of the first and second screening seats of this utility model.
[0023] Figure 6 This shows a schematic diagram of the split axial view of the first and second screening seats of this utility model after partial cross-section.
[0024] List of reference numerals
[0025] 1. First screening seat; 101. First fixed seat; 102. Fixed screw; 103. Adjustment groove; 2. Second fixed seat; 201. Rotating shaft; 202. Second screening seat; 203. Worm gear; 204. Worm; 205. Electric motor; 3. Screen hole; 4. Electric cylinder; 401. Seat body; 402. Auxiliary rod. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Example 1: Please refer to Figures 1 to 6 :
[0028] This utility model proposes a precise particle size classification control device for granules, comprising: a first screening seat 1 and a second fixing seat 2; a first fixing seat 101 is welded to both the left and right sides of the outer wall of the first screening seat 1, and two fixing screws 102 are inserted into each first fixing seat 101, with all four fixing screws 102 fixed to the inner wall of the classification equipment; the bottom of the first screening seat 1 has sieve holes 3 arranged in an array; the second fixing seat 2 is fixed to the inner wall of the equipment by the four fixing screws 102, and a rotating shaft 201 is rotatably mounted on the second fixing seat 2. A second screening seat 202 is welded to one end of the shaft 201. The second screening seat 202 is sleeved inside the first screening seat 1. The bottom surface of the second screening seat 202 is in contact with the bottom surface of the inner wall of the first screening seat 1. The bottom of the second screening seat 202 is also provided with screen holes 3 in a ring array. The screen holes 3 on the second screening seat 202 are aligned with the screen holes 3 on the first screening seat 1. During use, when the shaft 201 rotates, the screen holes 3 on the second screening seat 202 and the screen holes 3 on the first screening seat 1 gradually become misaligned, thus achieving control over the size of the screen holes 3.
[0029] Among them, a worm gear 203 is welded on the rotating shaft 201, and a worm 204 rotates on the second fixed seat 2, with the worm 204 meshing with the worm gear 203.
[0030] Among them, a motor 205 is fixed on the second fixed base 2. The output shaft of the motor 205 is fixed on the worm 204. When controlling the size of the screen hole 3, the motor 205 is driven to rotate. Under the meshing transmission of the worm 204 and the worm wheel 203, the rotating shaft 201 can be rotated. The rotating shaft 201 drives the second screening base 202 to rotate, thus realizing the precise control of the size of the screen hole 3.
[0031] The adjustment points of the eight fixing screws 102 are all hexagonal structures, and each fixing screw 102 adjustment point has an adjustment groove 103. All eight adjustment grooves 103 are hexagonal groove structures. When disassembling the fixing screws 102, if the adjustment point of the fixing screw 102 is deformed and the wrench cannot be engaged, a hex wrench can be inserted into the adjustment groove 103 for adjustment, thus realizing the emergency disassembly of the fixing screws 102.
[0032] Two electric cylinders 4 are fixed to the bottom surface of the second fixed seat 2. The extended ends of the two electric cylinders 4 are fixed to the seat body 401. The top surface of the seat body 401 is welded with auxiliary rods 402 in an array. The auxiliary rods 402 match the sieve holes 3. The auxiliary rods 402 and the sieve holes 3 are aligned. When the two electric cylinders 4 retract, the auxiliary rods 402 pass through the sieve holes 3 on the second screening seat 202 and the first screening seat 1.
[0033] Example 2, based on Example 1, such as Figures 1 to 6As shown, the array of welded auxiliary rods 402 are all cylindrical rod structures. The upper end of each auxiliary rod 402 is polished, and after polishing, the upper end of each auxiliary rod 402 is an arc structure. During use, when the motor 205 is damaged and cannot rotate, it drives the two electric cylinders 4 to retract. The size of the screen hole 3 can be precisely controlled by the insertion of the auxiliary rod 402 into the screen hole 3.
[0034] The working principle of this embodiment is as follows: When controlling the size of the sieve hole 3, the drive motor 205 rotates, and the rotating shaft 201 can be rotated under the meshing transmission of the worm gear 204 and the worm wheel 203. The rotating shaft 201 drives the second screening seat 202 to rotate, thus achieving precise control of the size of the sieve hole 3. When the motor 205 is damaged and cannot rotate, the two electric cylinders 4 are driven to retract. The size of the sieve hole 3 can be precisely controlled by the insertion of the auxiliary rod 402 into the sieve hole 3. When disassembling the fixing screw 102, if the adjustment part of the fixing screw 102 is deformed and the wrench cannot be engaged, a hex wrench can be inserted into the adjustment slot 103 for adjustment.
Claims
1. A device for precise control of particle size classification in granules, comprising: The first screening seat (1) and the second fixing seat (2) are respectively: a first fixing seat (101) is welded to the left and right sides of the outer wall of the first screening seat (1), and two fixing screws (102) are inserted into each first fixing seat (101), and the four fixing screws (102) are fixed to the inner wall of the grading equipment; the bottom of the first screening seat (1) is provided with screen holes (3) in an array; the second fixing seat (2) is fixed to the inner wall of the equipment by four fixing screws (102). A rotating shaft (201) is mounted on the second fixed seat (2). A second screening seat (202) is welded to the lower end of the rotating shaft (201). The second screening seat (202) is fitted inside the first screening seat (1). The bottom surface of the second screening seat (202) is in contact with the bottom surface of the inner wall of the first screening seat (1). The bottom of the second screening seat (202) is also provided with screen holes (3) in a ring array. The screen holes (3) on the second screening seat (202) are aligned with the screen holes (3) on the first screening seat (1).
2. The granule particle size classification precision control device according to claim 1, characterized in that, A worm gear (203) is welded onto the rotating shaft (201), and a worm (204) rotates on the second fixed seat (2), with the worm (204) meshing with the worm gear (203).
3. The granule particle size classification precision control device according to claim 2, characterized in that, A motor (205) is fixed on the second fixed base (2), and the output shaft of the motor (205) is fixed on the worm (204).
4. The granule particle size classification precision control device according to claim 3, characterized in that, The adjustment points of the eight fixing screws (102) are all hexagonal structures, and each fixing screw (102) has an adjustment groove (103) at its adjustment point. All eight adjustment grooves (103) are hexagonal groove structures.
5. The granule particle size classification precision control device according to claim 4, characterized in that, Two electric cylinders (4) are fixed on the bottom surface of the second fixed seat (2). The extended ends of the two electric cylinders (4) are fixed on the seat body (401). The top surface of the seat body (401) is welded with auxiliary rods (402) in an array. The auxiliary rods (402) match the sieve holes (3). The auxiliary rods (402) and the sieve holes (3) are aligned. When the two electric cylinders (4) retract, the auxiliary rods (402) pass through the sieve holes (3) on the second screening seat (202) and the first screening seat (1).
6. The granule particle size classification precision control device according to claim 5, characterized in that, The auxiliary rods (402) welded in an array are all cylindrical rod structures. The upper end of each auxiliary rod (402) is polished, and the upper end of each auxiliary rod (402) is an arc structure after polishing.