Anti-bonding medicine grinding device for solid medicine detection

Abstract

The invention discloses an anti-sticking medicine grinding device for solid medicine detection, and belongs to the technical field of solid medicine grinding, the anti-sticking medicine grinding device comprises a grinding shell, a pressure synchronizing assembly, a speed adjusting assembly, a beating anti-sticking structure and a second grinding roller, the second grinding roller conducts secondary grinding on solid medicine, and the second grinding roller conducts secondary grinding on the solid medicine. The pressure synchronizing assembly and the speed adjusting assembly are both arranged in the grinding shell, the pressure synchronizing assembly comprises a main shaft, a rotating speed sensing structure and a pressure adjusting structure are arranged on the main shaft, and the rotating speed sensing structure synchronously rotates along with rotation of the main shaft. By arranging the pressure synchronization assembly, the grinding pressure can be automatically adjusted and changed according to the rotating speed of the grinding roller, the grinding pressure can be reduced when the rotating speed is high, friction heating is reduced, the medicine effect characteristic of medicine is guaranteed, the grinding pressure is increased when the rotating speed is low, medicine particles can reach the fineness standard, and then the grinding rotating speed and pressure are balanced; and the grinding efficiency is improved while the medicine detection effect is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of solid medicine grinding, and in particular refers to an anti-adhesion medicine grinding device for solid medicine detection. Background Art

[0002] Before drug testing, especially solid drug testing, grinding is usually required. This is because during drug analysis, the state of the sample directly affects the accuracy and reliability of the test. Grinding can convert solid drugs into fine particles or powders, which not only helps to expose more drug molecules and improve the accuracy of detection, but also can improve the uniformity and speed of drug dissolution, making subsequent chemical analysis or instrumental analysis more accurate and reliable, and helps to ensure that all samples can meet consistent testing conditions to avoid errors caused by different particle sizes.

[0003] However, when grinding, traditional grinding devices usually use a fixed pressure between the grinding roller and the grinding bucket. During the grinding process, due to the high kinetic energy during high-speed rotation and the large amount of heat generated by friction, the drug particles are easily deteriorated when heated, and the detection results have large errors. If the rotation speed and pressure are too small, it may lead to low grinding efficiency and the drug particles cannot reach the ideal fineness. Therefore, in order to balance the impact of the rotation speed and grinding pressure on the grinding of solid drugs during grinding, ensure the grinding effect of the drugs while avoiding the deterioration of the drugs caused by excessive heat, an anti-sticking drug grinding device for solid drug detection is proposed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an anti-sticking drug grinding device for solid drug testing, which effectively solves the problem that the current traditional grinding devices usually use a fixed pressure between the grinding roller and the grinding bucket during grinding, which leads to severe frictional heating when the speed is fast, and the drug particles are prone to deterioration when heated. When the speed is low, the grinding efficiency is low, and the drug particles cannot reach the ideal fineness.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes an anti-sticking drug grinding device for solid drug detection, including a grinding shell, a pressure synchronization component, a speed adjustment component, a knocking anti-sticking structure and a second grinding roller, the second grinding roller performs secondary grinding on the solid drug, the pressure synchronization component and the speed adjustment component are both arranged inside the grinding shell, the pressure synchronization component includes a main shaft, the main shaft is provided with a speed sensing structure and a pressure adjustment structure, the speed sensing structure rotates synchronously with the rotation of the main shaft, the second grinding roller is connected to the pressure adjustment structure, the pressure adjustment structure is used to adjust the pressure of the second grinding roller during grinding, and the speed sensing structure is connected to the pressure adjustment structure.

[0006] Furthermore, the speed sensing structure includes a fixed disk, a lifting plate, a centrifugal block and a screw rod, the fixed disk is fixedly connected to the main shaft, the lifting plate is slidably connected to the main shaft, the bottom of the fixed disk is fixedly connected to a guide rail, the centrifugal block is slidably connected to the guide rail, a connecting rod is hingedly connected between the centrifugal block and the lifting plate, a fixed seat is fixedly connected to the main shaft, the screw rod is rotatably connected to the fixed seat, the lifting plate is threadedly connected to the screw rod, and the lifting plate drives the screw rod to rotate when it moves, and a threaded rod is fixedly connected to the screw rod.

[0007] Further, the pressure regulating structure includes a push plate, a keyway sleeve, a boosting plate and a push plate, the push plate is fixedly connected to the second grinding mill, the keyway sleeve is fixedly connected to the push plate, a sliding key is provided on the main shaft, the push plate is slidably connected to the main shaft through the sliding key, the push plate is threadedly connected to the threaded rod, the boosting plate is slidably connected to the main shaft, a guide key is provided at the bottom of the main shaft, the keyway sleeve is slidably connected to the main shaft through the guide key, a first spring is provided between the push plate and the boosting plate, and a second spring is provided between the boosting plate and the push plate.

[0008] Furthermore, a return spring is provided on one side of the centrifugal block, and two ends of the return spring are respectively fixedly connected to the centrifugal block and the fixed plate, and the thread rotation direction of the threaded rod is arranged in the same direction as the screw-type rod.

[0009] Furthermore, a first transmission shaft is rotatably connected inside the grinding shell, a first roller mill is fixedly connected to the first transmission shaft, an upper grinding bucket is fixedly connected to the grinding shell, the first roller mill is arranged in the upper grinding bucket, and a gap formed between the first roller mill and the upper grinding bucket gradually decreases from top to bottom.

[0010] Furthermore, the speed adjustment component includes an isolation frame, a planetary disk and a sun gear, the isolation frame is fixedly installed in the grinding shell, one end of the first transmission shaft is rotatably connected to the isolation frame, the planetary disk is fixedly connected to the first transmission shaft, a planetary wheel is rotatably connected to the planetary disk, an internal gear is fixedly connected to the isolation frame, the planetary wheel is meshingly connected to the internal gear, a sun gear is rotatably connected to the isolation frame, the sun gear is meshingly connected to the planetary gear, and a planetary reducer structure is formed between the planetary gear, the internal gear and the sun gear.

[0011] Furthermore, a second transmission shaft is fixedly connected to the sun gear, the second transmission shaft is fixedly connected to the main shaft, and the second transmission shaft is used to drive the rotation of the main shaft.

[0012] Furthermore, the knocking and anti-sticking structure includes a fixed frame and an impact cylinder. The fixed frame is fixedly connected to the bottom of the grinding shell. The impact cylinder penetrates and is fixedly installed on the fixed frame. The telescopic end of the impact cylinder is fixedly connected to an impact block.

[0013] Furthermore, a lower grinding bucket is fixedly connected to the bottom of the grinding shell, the second grinding roller is arranged inside the lower grinding bucket, the second grinding roller cooperates with the lower grinding bucket to perform secondary grinding of the drug particles, a filter plate is fixedly connected to the bottom of the lower grinding bucket, the impact cylinder and the impact block are both arranged on one side of the lower grinding bucket, and a spring is provided on the impact block for resetting the impact block after impacting the lower grinding bucket.

[0014] Furthermore, a driving motor is fixedly mounted on the top of the grinding shell, an output end of the driving motor is fixedly connected to the first transmission shaft, and the driving motor is used to drive the rotation of the first transmission shaft.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] (1) In order to solve the problem that the drug grinding device cannot adjust the grinding pressure according to the rotation speed, the present invention is provided with a pressure synchronization component, which can automatically adjust and change the grinding pressure according to the rotation speed of the grinding roller, thereby effectively avoiding the problem that the drug components are deteriorated due to the large amount of heat generated by friction during grinding, and the detection results have large errors;

[0017] (2) The speed regulating component converts the rotation speed of the grinding mill into the magnitude of the centrifugal force, and then drives the pressure regulating structure to change the rolling pressure, so that the grinding pressure changes synchronously with the change of the rotation speed. When the rotation speed is fast, the grinding pressure can be reduced to reduce friction and heat generation, effectively ensuring the original efficacy characteristics and detection effects of the drug. When the rotation speed is low, the grinding pressure is increased so that the drug particles can be fully crushed to reach the required fineness standard, thereby improving the grinding efficiency and particle effect;

[0018] (3) In addition, the two-stage grinding design firstly crushes the drug in the upper grinding hopper by the first grinding roller, and then the drug enters the lower grinding hopper and is secondarily ground by the second grinding roller, which can ensure that the drug particles can be evenly and thoroughly crushed to the required fineness, and can also avoid the large particles that may remain in the first grinding process, thereby ensuring the consistency of the drug particles after grinding;

[0019] (4) A knocking anti-sticking structure is set at the bottom of the device. The impact cylinder is used to start the impact block to hit the lower grinding bucket at a fixed time, causing the grinding bucket to vibrate, preventing the drug powder at the bottom from adhering to the bucket wall, ensuring the smooth progress of the grinding process, while also reducing the number of manual cleaning times and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of an anti-adhesion medicine grinding device for solid medicine detection proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of an anti-adhesion drug grinding device for solid drug testing proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a pressure synchronization component of an anti-adhesion drug grinding device for solid drug testing proposed by the present invention;

[0023] Figure 4 It is an exploded view of the pressure synchronization component;

[0024] Figure 5 It is a structural schematic diagram of a fixed disk;

[0025] Figure 6 for Figure 2 Schematic diagram of the local structure in;

[0026] Figure 7 It is a schematic diagram of the internal structure of the speed regulating component;

[0027] Figure 8 It is a structural schematic diagram of the speed regulating component;

[0028] Fig. 9 The present invention is a partial cross-sectional view of the bottom of an anti-sticking drug grinding device for solid drug testing proposed by the present invention.

[0029] Among them, 1. grinding shell; 2. first transmission shaft; 3. second transmission shaft; 4. pressure synchronization component; 5. speed adjustment component; 6. knocking anti-sticking structure; 7. second grinding mill; 8. first grinding mill; 9. driving motor; 10. upper grinding bucket; 11. lower grinding bucket; 12. filter plate; 401. main shaft; 411. fixed plate; 412. lifting plate; 413. centrifugal block; 414. connecting rod; 415. guide rail; 416. reset spring; 4 17. Screw rod; 418. Threaded rod; 419. Fixed seat; 420. Push plate; 421. Guide key; 422. Keyway sleeve; 423. Boost plate; 424. Push plate; 425. First spring; 426. Second spring; 427. Sliding key; 501. Isolation frame; 503. Planetary plate; 504. Planetary gear; 505. Internal gear; 506. Sun gear; 601. Fixed frame; 602. Impact cylinder; 603. Impact block.

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0033] like Figure 1-Figure 9 As shown, the present invention proposes an anti-sticking drug grinding device for solid drug detection, comprising a grinding shell 1, a pressure synchronization component 4, a speed adjustment component 5, a knocking anti-sticking structure 6 and a second grinding mill 7. The second grinding mill 7 performs secondary grinding on the solid drug. The pressure synchronization component 4 and the speed adjustment component 5 are both arranged inside the grinding shell 1. The pressure synchronization component 4 comprises a main shaft 401, and a speed sensing structure and a pressure adjustment structure are arranged on the main shaft 401. The speed sensing structure rotates synchronously with the rotation of the main shaft 401. The second grinding mill 7 is connected to the pressure adjustment structure. The pressure adjustment structure is used to adjust the pressure of the second grinding mill 7 during grinding. The speed sensing structure is connected to the pressure adjustment structure. The pressure adjustment structure can provide grinding pressure for the second grinding mill 7. The speed sensing structure can drive the speed sensing structure according to the speed of the second grinding mill 7, so that the pressure on the second grinding mill 7 changes, and can reduce the grinding pressure when the speed of the second grinding mill 7 is fast, reduce the frictional heat during grinding, and increase the grinding pressure when the speed of the second grinding mill 7 is slow, so as to ensure the working efficiency of the device.

[0034] The speed sensing structure includes a fixed plate 411, a lifting plate 412, a centrifugal block 413 and a screw rod 417. The fixed plate 411 is fixedly connected to the main shaft 401, the lifting plate 412 is slidably connected to the main shaft 401, the bottom of the fixed plate 411 is fixedly connected to a guide rail 415, the centrifugal block 413 is slidably connected to the guide rail 415, and a connecting rod 414 is hingedly connected between the centrifugal block 413 and the lifting plate 412. Two groups of connecting rods 414 are symmetrically arranged on both sides of the main shaft 401. A fixed seat 419 is fixedly connected to the main shaft 401. The screw rod 417 rotates The lifting plate 412 is connected to the fixed seat 419, and the lifting plate 412 is threadedly connected to the screw rod 417. When the lifting plate 412 moves, the screw rod 417 is driven to rotate. The screw rod 417 is fixedly connected with a threaded rod 418. The screw rod 417 and the threaded rod 418 are coaxial rods. The connection between the two rods rotates on the fixed seat 419. The thread rotation direction of the screw rod 417 and the threaded rod 418 is set in the same direction, so that the push plate 424 can move in the same direction as the lifting plate 412. When the centrifugal force is large, the lifting plate 412 moves upward, and the push plate 424 also moves upward, thereby The spring thrust on the second grinding mill 7 is reduced. The thread pitch of the screw rod 417 is large and non-self-locking. When the lifting plate 412 moves, the screw rod 417 can be driven to rotate. The thread pitch of the threaded rod 418 is small and self-locking. The pressure regulating structure includes a push plate 420, a keyway sleeve 422, a booster plate 423 and a push plate 424. The push plate 420 is fixedly connected to the second grinding mill 7. The keyway sleeve 422 is fixedly connected to the push plate 420. A sliding key 427 is provided on the main shaft 401. The push plate 424 is slidably connected to the main shaft 4 through the sliding key 427. 01, the push plate 424 is threadedly connected to the threaded rod 418, the boost plate 423 is slidably connected to the main shaft 401, a guide key 421 is provided at the bottom of the main shaft 401, and the keyway sleeve 422 is slidably connected to the main shaft 401 through the guide key 421. The design of the guide key 421 and the keyway sleeve 422 can enable the main shaft 401 to drive the push plate 420 to rotate, and also can enable the push plate 420 to move relative to the main shaft 401, a first spring 425 is provided between the push plate 424 and the boost plate 423, and a second spring 426 is provided between the boost plate 423 and the push plate 420.

[0035] In addition, a return spring 416 is provided on one side of the centrifugal block 413, and both ends of the return spring 416 are fixedly connected to the centrifugal block 413 and the fixed plate 411 respectively. When the rotation speed of the main shaft 401 decreases, the centrifugal block 413 can be reset under the elastic force of the return spring 416, thereby driving the lifting plate 412 to reset and move downward, so that the elastic thrust of the second grinding mill 7 increases. The first transmission shaft 2 is rotatably connected to the grinding shell 1, and the first grinding mill 8 is fixedly connected to the first transmission shaft 2. The upper grinding bucket 10 is fixedly connected to the grinding shell 1, and the first grinding mill 8 is arranged in the upper grinding bucket 10. The gap formed between the first grinding mill 8 and the upper grinding bucket 10 gradually decreases from top to bottom, and the solid powder can be gradually crushed from top to bottom.

[0036] The speed adjustment component 5 includes an isolation frame 501, a planetary disk 503 and a sun gear 506. The isolation frame 501 is fixedly installed in the grinding shell 1. One end of the first transmission shaft 2 is rotatably connected to the isolation frame 501. The planetary disk 503 is fixedly connected to the first transmission shaft 2. The planetary disk 503 is rotatably connected to the planetary disk 503. An internal gear 505 is fixedly connected in the isolation frame 501. The planetary gear 504 is meshingly connected to the internal gear 505. A sun gear 506 is rotatably connected in the isolation frame 501. The sun gear 506 is meshingly connected to the planetary gear 504. A planetary reducer structure is formed between the planetary gear 504, the internal gear 505 and the sun gear 506. The second transmission shaft 3 is fixedly connected to the sun gear 506. The second transmission shaft 3 is fixedly connected to the main shaft 401. The second transmission shaft 3 is used to drive the rotation of the main shaft 401.

[0037] In addition, the knocking anti-sticking structure 6 includes a fixed frame 601 and an impact cylinder 602. The fixed frame 601 is fixedly connected to the bottom of the grinding shell 1. The impact cylinder 602 passes through and is fixedly installed on the fixed frame 601. The telescopic end of the impact cylinder 602 is fixedly connected to the impact block 603. The bottom of the grinding shell 1 is fixedly connected to the lower grinding bucket 11. The second grinding mill 7 is arranged inside the lower grinding bucket 11. The second grinding mill 7 cooperates with the lower grinding bucket 11 to perform secondary grinding on the drug particles. The bottom of the lower grinding bucket 11 is fixedly connected with a filter plate 12. The impact cylinder 602 and the impact block 603 are both arranged on one side of the lower grinding bucket 11. A spring is provided on the impact block 603 for resetting the impact block 603 after impacting the lower grinding bucket 11. The second grinding mill 7 and the first grinding mill 8 are both of truncated cone design, and the small head of the first grinding mill 8 is on the top and the large head is on the bottom, and the large head of the second grinding mill 7 is on the top and the small head is on the bottom.

[0038] A driving motor 9 is fixedly mounted on the top of the grinding shell 1 , and an output end of the driving motor 9 is fixedly connected to the first transmission shaft 2 . The driving motor 9 is used to drive the first transmission shaft 2 to rotate.

[0039] Specific use and working principle: when testing solid medicines, first add a certain amount of solid medicines into the inside of the grinding shell 1 from the feed port at the top of the grinding shell 1, and the output end of the driving motor 9 drives the first transmission shaft 2 and the first grinding mill 8 to rotate. When the solid medicines fall into the upper grinding bucket 10, the solid medicines are initially ground and crushed under the rotation of the first grinding mill 8. The crushed medicine particles fall into the lower grinding bucket 11, and are crushed after being ground by the second grinding mill 7 and the lower grinding bucket 11, thereby completing the grinding for medicine testing;

[0040] When the first transmission shaft 2 rotates, the first transmission shaft 2 drives the planetary disc 503 to rotate, and drives the sun gear 506 to rotate under the meshing action of the planetary gear 504, the internal gear 505 and the sun gear 506, thereby driving the second transmission shaft 3 to rotate, so that the second transmission shaft 3 can rotate at a high speed relative to the first transmission shaft 2, and the main shaft 401 rotates with the second transmission shaft 3 and then drives the second grinding mill 7 to rotate, so that the second grinding mill 7 and the first grinding mill 8 rotate at the same time, and the second grinding mill 7 can rotate at a high speed relative to the first grinding mill 8;

[0041] When the main shaft 401 rotates, the bottom of the main shaft 401 drives the push plate 420 to rotate through the cooperation of the guide key 421 and the keyway sleeve 422, and the top of the main shaft 401 drives the fixed plate 411 to rotate. Due to the rotation of the fixed plate 411, the centrifugal block 413 moves away from each other along the guide rail 415 under the action of centrifugal force. The guide rail 415 pulls the lifting plate 412 upward through the connecting rod 414. The movement of the lifting plate 412 drives the rotation of the screw rod 417. The threaded rod 418 rotates synchronously with the screw rod 417. Since the threaded rotation direction of the threaded rod 418 and the screw rod 417 is set in the same direction, The push plate 424 moves in the same direction as the lifting plate 412, and the push plate 424 also moves upward, thereby extending the length of the first spring 425 and the second spring 426, and the elastic forces of the first spring 425 and the first spring 426 are weakened, and the downward elastic force on the second grinding mill 7 is weakened, thereby weakening the grinding pressure between the second grinding mill 7 and the lower grinding bucket 11, thereby achieving that when the speed of the second grinding mill 7 is high, the grinding pressure of the second grinding mill 7 on the medicine is reduced, effectively avoiding the heat generated by friction when the grinding speed is fast and the grinding pressure is large, causing the medicine components to deteriorate, thereby affecting the detection results;

[0042] When the device is grinding medicine, the impact cylinder 602 is started intermittently and regularly, and the output end of the impact cylinder 602 drives the impact block 603 to impact the lower grinding bucket 11, so that the lower grinding bucket 11 vibrates, thereby preventing the medicine solid from sticking to the lower grinding bucket 11, and the ground medicine passes through the filter plate 12 and is discharged from the outlet at the bottom of the grinding shell 1;

[0043] The above is the overall workflow of the present invention.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0046] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An anti-adhesion drug grinding device for solid drug testing, characterized in that: The invention comprises a grinding shell (1), a pressure synchronization component (4), a speed adjustment component (5), a knocking anti-sticking structure (6) and a second grinding mill (7), wherein the second grinding mill (7) performs secondary grinding on solid medicines, the pressure synchronization component (4) and the speed adjustment component (5) are both arranged inside the grinding shell (1), the pressure synchronization component (4) comprises a main shaft (401), the main shaft (401) is provided with a speed sensing structure and a pressure adjustment structure, the speed sensing structure rotates synchronously with the rotation of the main shaft (401), the second grinding mill (7) is connected to the pressure adjustment structure, the pressure adjustment structure is used to adjust the pressure of the second grinding mill (7) during grinding, and the speed sensing structure is connected to the pressure adjustment structure.

2. The anti-adhesion drug grinding device for solid drug detection according to claim 1, characterized in that: The rotation speed sensing structure comprises a fixed disk (411), a lifting plate (412), a centrifugal block (413) and a screw rod (417); the fixed disk (411) is fixedly connected to the main shaft (401); the lifting plate (412) is slidably connected to the main shaft (401); a guide rail (415) is fixedly connected to the bottom of the fixed disk (411); the centrifugal block (413) is slidably connected to the guide rail (415); and the centrifugal block (413) is slidably connected to the guide rail (415). 13) is hingedly connected with a connecting rod (414) and a lifting plate (412); a fixing seat (419) is fixedly connected to the main shaft (401); the screw rod (417) is rotatably connected to the fixing seat (419); the lifting plate (412) is threadedly connected to the screw rod (417); when the lifting plate (412) moves, the screw rod (417) is driven to rotate; and a threaded rod (418) is fixedly connected to the screw rod (417).

3. The anti-adhesion drug grinding device for solid drug detection according to claim 2, characterized in that: The pressure regulating structure comprises a push plate (420), a keyway sleeve (422), a pressure increasing plate (423) and a push plate (424); the push plate (420) is fixedly connected to the second grinding mill (7); the keyway sleeve (422) is fixedly connected to the push plate (420); a sliding key (427) is provided on the main shaft (401); the push plate (424) is slidably connected to the main shaft (401) via the sliding key (427); and the push plate (424) The boost plate (423) is threadedly connected to the threaded rod (418), and is slidably connected to the main shaft (401). A guide key (421) is provided at the bottom of the main shaft (401), and the keyway sleeve (422) is slidably connected to the main shaft (401) through the guide key (421). A first spring (425) is provided between the push plate (424) and the boost plate (423), and a second spring (426) is provided between the boost plate (423) and the push plate (420).

4. The anti-adhesion drug grinding device for solid drug testing according to claim 3, characterized in that: A return spring (416) is provided on one side of the centrifugal block (413), and two ends of the return spring (416) are respectively fixedly connected to the centrifugal block (413) and the fixed plate (411), and the threaded direction of the threaded rod (418) is arranged in the same direction as the screw-shaped rod (417).

5. The anti-adhesion drug grinding device for solid drug detection according to claim 4, characterized in that: A first transmission shaft (2) is rotatably connected inside the grinding shell (1), a first roller mill (8) is fixedly connected to the first transmission shaft (2), an upper grinding bucket (10) is fixedly connected to the grinding shell (1), the first roller mill (8) is arranged in the upper grinding bucket (10), and a gap formed between the first roller mill (8) and the upper grinding bucket (10) gradually decreases from top to bottom.

6. The anti-adhesion drug grinding device for solid drug testing according to claim 5, characterized in that: The speed adjustment component (5) comprises an isolation frame (501), a planetary disk (503) and a sun gear (506); the isolation frame (501) is fixedly installed in the grinding shell (1); one end of the first transmission shaft (2) is rotatably connected to the isolation frame (501); the planetary disk (503) is fixedly connected to the first transmission shaft (2); a planetary wheel (504) is rotatably connected to the planetary disk (503); an internal gear (505) is fixedly connected in the isolation frame (501); the planetary wheel (504) is meshingly connected to the internal gear (505); a sun gear (506) is rotatably connected in the isolation frame (501); the sun gear (506) is meshingly connected to the planetary wheel (504); a planetary reducer structure is formed between the planetary wheel (504), the internal gear (505) and the sun gear (506).

7. The anti-adhesion drug grinding device for solid drug detection according to claim 6, characterized in that: The sun gear (506) is fixedly connected to a second transmission shaft (3), the second transmission shaft (3) is fixedly connected to the main shaft (401), and the second transmission shaft (3) is used to drive the main shaft (401) to rotate.

8. The anti-adhesion drug grinding device for solid drug testing according to claim 7, characterized in that: The knocking and anti-sticking structure (6) comprises a fixed frame (601) and an impact cylinder (602), wherein the fixed frame (601) is fixedly connected to the bottom of the grinding shell (1), the impact cylinder (602) penetrates and is fixedly installed on the fixed frame (601), and the telescopic end of the impact cylinder (602) is fixedly connected to an impact block (603).

9. The anti-adhesion drug grinding device for solid drug testing according to claim 8, characterized in that: The bottom of the grinding shell (1) is fixedly connected to a lower grinding bucket (11); the second grinding roller (7) is arranged inside the lower grinding bucket (11); the second grinding roller (7) cooperates with the lower grinding bucket (11) to perform secondary grinding of drug particles; the bottom of the lower grinding bucket (11) is fixedly connected to a filter plate (12); the impact cylinder (602) and the impact block (603) are both arranged on one side of the lower grinding bucket (11); and the impact block (603) is provided with a spring for resetting the impact block (603) after impacting the lower grinding bucket (11).

10. The anti-adhesion drug grinding device for solid drug testing according to claim 9, characterized in that: A drive motor (9) is fixedly mounted on the top of the grinding shell (1); an output end of the drive motor (9) is fixedly connected to the first transmission shaft (2); and the drive motor (9) is used to drive the first transmission shaft (2) to rotate.

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