An automatic sample grinding device for chemical analysis
By designing an automatic sample grinding device for chemical analysis, using the combination of the grinding groove and the grinding head, efficient crushing of a small amount of raw materials is achieved, and the problems of poor grinding effect and waste in the prior art are solved.
Patent Information
- Application Number
- CN202420670783.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The prior art is difficult to effectively grind a small amount of raw materials in chemical analysis, resulting in poor crushing effect and waste.
An automatic sample grinding device is designed, including a grinding bowl, threaded connecting seat, sealing cover, material groove, grinding head and drive assembly. The raw materials are sheared and crushed by setting a grinding groove on both the grinding head and the inner walls of the grinding head, and impact grinding of the raw materials by lifting and lowering of the grinding head.
It realizes automatic crushing of a small amount of raw materials, simple operation, good grinding effect, improves the practicality of the equipment, and avoids waste of large-scale machinery.
Smart Images
Figure CN222724473U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical analysis devices, in particular to an automatic sample grinding device for chemical analysis. Background Art
[0002] At present, most of the chemical preparations on the market are crushed manually using a bowl, or using large machines. The manual grinding and crushing effect is often not good, and large machines often have a minimum processing capacity. The amount of raw materials required for chemical analysis is generally very small, and the use of large machines will cause a certain degree of waste. Therefore, an automatic sample grinding device for chemical analysis is needed to solve the above problems. Utility Model Content
[0003] The purpose of the utility model is to propose an automatic sample grinding device for chemical analysis in view of the deficiencies in the prior art, comprising a grinding bowl, a threaded connection seat, a sealing cover, a threaded mounting head, a material trough, a first grinding trough, a bearing bush, a connecting shaft, a grinding head, a second grinding trough, a motor, a driving groove, and a driving assembly, wherein a material trough is arranged in the grinding bowl; a plurality of first grinding grooves are arranged on the inner wall of the material trough; a threaded connection seat is fixedly connected to the edge of the material trough; the threaded connection seat is connected to the threaded mounting head through threads; a sealing cover is fixedly connected to the threaded mounting head; a driving groove is arranged in the sealing cover; a motor is fixedly connected to the upper part of the sealing cover; a bearing bush is fixedly connected to the bottom of the driving groove; a rotating connecting shaft is arranged in the bearing bush; a grinding head is fixedly connected to the bottom of the connecting shaft; a plurality of second grinding grooves are arranged on the outer wall of the grinding head; a driving assembly for driving the connecting shaft to rotate and lift is arranged in the driving groove.
[0004] The driving assembly includes a gear column, a slide groove, a lifting rod, a limit groove, a limit block, a first gear, a spring, a first driving shaft, a second gear, a second driving shaft, a third gear, a rotating rod, a ball, and a stop block;
[0005] Among them, the gear column is fixedly connected to the connecting shaft, the first driving shaft is fixedly connected to the output shaft of the motor, the first driving shaft is fixedly connected to the second gear, and the second gear and the gear column cooperate with each other; a slide groove is arranged in the connecting shaft; one end of the lifting rod is arranged in the slide groove, and the other end is rotatably connected to the inner wall of the driving groove; the lifting rod is fixedly connected to the first gear, and a spring sleeved on the lifting rod is arranged between the first gear and the gear column; a limiting groove is arranged on the inner wall of the slide groove, and a limiting block is fixedly connected to the inner wall of the lifting rod, and the limiting block is slidably connected to the limiting groove; the second driving shaft is rotatably connected to the driving groove, and the second driving shaft is fixedly connected to the third gear, and the third gear and the first gear are meshed with each other; a rotating rod is fixedly connected to the bottom of the gear column, a ball is connected to the bottom of the rotating rod, and a block is fixedly connected to the second driving shaft, and the block and the ball cooperate with each other.
[0006] The first grinding grooves and the second grinding grooves are evenly distributed.
[0007] The gap between the first grinding groove and the second grinding groove is proportional to the distance between the head of the grinding head and the bottom of the material groove.
[0008] The number of teeth of the third gear is different from that of the first gear; the number of teeth of the second gear is different from that of the gear column.
[0009] The beneficial effects of the utility model are:
[0010] The utility model provides grinding grooves on the grinding head and the inner wall of the material trough to shear and crush the raw materials, and finally impact-grinds the raw materials by lifting and lowering the grinding head, thereby realizing automatic crushing of a small amount of raw materials, simple operation, good grinding effect, and improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a schematic diagram of the structure of the automatic sample grinding device for chemical analysis.
[0012] Figure 2 The utility model is a schematic diagram of the internal structure of the automatic sample grinding device for chemical analysis.
[0013] Figure 3 The utility model is a cross-sectional view of the automatic sample grinding device for chemical analysis.
[0014] Figure 4 The utility model is a cross-sectional view of the automatic sample grinding device for chemical analysis.
[0015] In the figure: 1-grinding bowl, 2-threaded connecting seat, 3-sealing cover, 4-threaded mounting head, 5-material trough, 6-first grinding groove, 7-bearing, 8-connecting shaft, 9-grinding head, 10-second grinding groove, 11-tooth column, 12-slide, 13-lifting rod, 14-limiting groove, 15-limiting block, 16-first gear, 17-spring, 18-first driving shaft, 19-second gear, 20-motor, 21-second driving shaft, 22-third gear, 23-rotating rod, 24-ball, 25-block, 26-driving groove. DETAILED DESCRIPTION
[0016] The utility model provides an automatic sample grinding device for chemical analysis, and the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0017] Figure 1 , Figure 2 , Figure 3 , Figure 4The automatic sample grinding device for chemical analysis comprises a grinding bowl 1, a threaded connection seat 2, a sealing cover 3, a threaded mounting head 4, a material trough 5, a first grinding trough 6, a bearing bush 7, a connecting shaft 8, a grinding head 9, a second grinding trough 10, a motor 20, a driving groove 26, and a driving assembly; a material trough 5 is arranged in the grinding bowl 1; a plurality of first grinding grooves 6 are arranged on the inner wall of the material trough 5; a threaded connection seat 2 is fixedly connected at the edge of the material trough 5; the threaded connection seat 2 is connected to the threaded mounting head 4 through threads; a sealing cover 3 is fixedly connected to the threaded mounting head 4; a driving groove 26 is arranged in the sealing cover 3; a motor 20 is fixedly connected to the upper part of the sealing cover 3; a bearing bush 7 is fixedly connected to the bottom of the driving groove 26; a rotating connecting shaft 8 is arranged in the bearing bush 7; a grinding head 9 is fixedly connected to the bottom of the connecting shaft 8; a plurality of second grinding grooves 10 are arranged on the outer wall of the grinding head 9; a driving assembly for driving the connecting shaft 8 to rotate and lift is arranged in the driving groove 26.
[0018] The driving assembly includes a gear column 11, a slide slot 12, a lifting rod 13, a limit slot 14, a limit block 15, a first gear 16, a spring 17, a first driving shaft 18, a second gear 19, a second driving shaft 21, a third gear 22, a rotating rod 23, a ball 24, and a stopper 25;
[0019] Among them, the gear column 11 is fixedly connected to the connecting shaft 8, the first driving shaft 18 is fixedly connected to the output shaft of the motor 20, the first driving shaft 18 is fixedly connected to the second gear 19, and the second gear 19 cooperates with the gear column 11; a slide groove 12 is arranged in the connecting shaft 8; one end of the lifting rod 13 is arranged in the slide groove 12, and the other end is rotatably connected to the inner wall of the driving groove 26; the lifting rod 13 is fixedly connected to the first gear 16, and a spring 17 sleeved on the lifting rod 13 is arranged between the first gear 16 and the gear column 11; A limiting groove 14 is provided on the inner wall of the groove 12, and a limiting block 15 is fixedly connected to the inner wall of the lifting rod 13, and the limiting block 15 is slidably connected to the limiting groove 14; the second driving shaft 21 is rotatably connected in the driving groove 26, and a third gear 22 is fixedly connected to the second driving shaft 21, and the third gear 22 is meshed with the first gear 16; a rotating rod 23 is fixedly connected to the bottom of the gear column 11, and a ball 24 is connected to the bottom of the rotating rod 23, and a stopper 25 is fixedly connected to the second driving shaft 21, and the stopper 25 and the ball 24 cooperate with each other.
[0020] When the automatic sample grinding device for chemical analysis of the utility model is used, the material is added into the material groove 5 in the grinding bowl 1, and then the sealing cover 3 is threadedly connected to the threaded connection seat 2 through the threaded mounting head 4, and the grinding head 9 is inserted into the material groove 5, and the connecting shaft 8 is driven by the driving component to rotate and lift, and the connecting shaft 8 drives the grinding head 9 to rotate and lift; when the grinding head 9 rotates in the material groove 5, the block raw material slides into the first grinding groove 6 and the second grinding groove 10 under the action of gravity, and when the grinding head 9 rotates, the first grinding groove 6 and the second grinding groove 10 are relatively rotated and sheared, so that the first grinding groove 6 and the second grinding groove 10 are relatively rotated and sheared. 0 is sheared and crushed, and the closer the first grinding trough 6 and the second grinding trough 10 are to the bottom of the trough 5, the smaller the gap between them is, so the more the raw material falls to the bottom of the trough 5, the greater the degree of crushing, until it falls to the bottom of the trough 5, and is ground by the head of the grinding head 9 and the bottom of the trough 5; at the same time, the motor 20 drives the first drive shaft 18 to rotate, the first drive shaft 18 drives the second gear 19 to rotate, the second gear 19 drives the gear column 11 to rotate by mutual engagement with the gear column 11, and the gear column 11 drives the connecting shaft 8 to rotate; due to the different number of teeth of the second gear 19 and the gear column 11, the reduction drive between the motor 20 and the connecting shaft 8 is realized, At the same time, the connecting shaft 8 drives the lifting rod 13 to rotate through the mutual sliding of the limit block 15 and the limit groove 14, and the lifting rod 13 drives the first gear 16 to rotate. The first gear 16 drives the third gear 22 to rotate through the mutual meshing with the third gear 22, and the third gear 22 drives the second driving shaft 21 to rotate. At this time, the second driving shaft 21 drives the stopper 25 to rotate, and the tooth column 11 drives the ball 24 to rotate through the rotating rod 23; due to the different number of teeth between the third gear 22 and the first gear 16, the rotation speed between the stopper 25 and the ball 24 is different, so that the stopper 25 and the ball 24 are in periodic contact; when the ball 24 and the stopper 25 are in contact, the ball 24 is in contact with each other. When in contact, the ball 24 is lifted up under the drive of the stopper 25, and the ball 24 drives the tooth column 11 to lift up through the rotating rod 23, and the tooth column 11 drives the grinding head 9 to lift up through the connecting shaft 8. When the ball 24 passes over the stopper 25, the grinding head 9 is pressed down and reset under the push of the spring 17, thereby driving the grinding head 9 to rise and fall periodically; when the grinding head 9 is lifted up, the distance between the grinding head 9 and the inner wall of the trough 5 increases, and at this time, larger fragments slide into the trough 5. When the grinding head 9 falls, the grinding head 9 impacts the block raw material in the trough 5 and the raw material powder at the bottom of the trough 5, thereby crushing the large pieces of raw material and crushing the raw material powder more finely.
[0021] The utility model provides grinding grooves on the grinding head and the inner wall of the material trough to shear and crush the raw materials, and finally impact-grinds the raw materials by lifting and lowering the grinding head, thereby realizing automatic crushing of a small amount of raw materials, simple operation, good grinding effect, and improving the practicability of the equipment.
Claims
1. An automatic sample grinding device for chemical analysis, comprising a grinding mortar (1), a threaded connection seat (2), a sealing cover (3), a threaded mounting head (4), a material trough (5), a first grinding trough (6), a bearing bush (7), a connecting shaft (8), a grinding head (9), a second grinding trough (10), a motor (20), a driving trough (26), and a driving assembly, characterized in that: A material trough (5) is arranged in the grinding bowl (1); a plurality of groups of first grinding grooves (6) are arranged on the inner wall of the material trough (5); a threaded connection seat (2) is fixedly connected to the edge of the material trough (5); the threaded connection seat (2) is connected to a threaded mounting head (4) through a thread; a sealing cover (3) is fixedly connected to the threaded mounting head (4); a driving groove (26) is arranged in the sealing cover (3); a motor (20) is fixedly connected to the upper part of the sealing cover (3); a bearing bush (7) is fixedly connected to the bottom of the driving groove (26); a rotating connecting shaft (8) is arranged in the bearing bush (7); a grinding head (9) is fixedly connected to the bottom of the connecting shaft (8); a plurality of groups of second grinding grooves (10) are arranged on the outer wall of the grinding head (9); and a driving component for driving the connecting shaft (8) to rotate and lift is arranged in the driving groove (26).
2. The automatic sample grinding device for chemical analysis according to claim 1, characterized in that: The driving assembly comprises a gear column (11), a slide groove (12), a lifting rod (13), a limiting groove (14), a limiting block (15), a first gear (16), a spring (17), a first driving shaft (18), a second gear (19), a second driving shaft (21), a third gear (22), a rotating rod (23), a ball (24), and a stopper (25); The tooth column (11) is fixedly connected to the connecting shaft (8), the first driving shaft (18) is fixedly connected to the output shaft of the motor (20), the first driving shaft (18) is fixedly connected to the second gear (19), and the second gear (19) and the tooth column (11) cooperate with each other; a slide groove (12) is arranged in the connecting shaft (8); one end of the lifting rod (13) is arranged in the slide groove (12), and the other end is rotatably connected to the inner wall of the driving groove (26); the lifting rod (13) is fixedly connected to the first gear (16), and a spring (17) sleeved on the lifting rod (13) is arranged between the first gear (16) and the tooth column (11); the slide groove A limiting groove (14) is arranged on the inner wall of the lifting rod (12); a limiting block (15) is fixedly connected to the inner wall of the lifting rod (13); the limiting block (15) is slidably connected to the limiting groove (14); the second driving shaft (21) is rotatably connected to the driving groove (26); the second driving shaft (21) is fixedly connected to a third gear (22); the third gear (22) and the first gear (16) are meshed with each other; the bottom of the tooth column (11) is fixedly connected to a rotating rod (23); the bottom of the rotating rod (23) is connected to a ball (24); the second driving shaft (21) is fixedly connected to a stopper (25); the stopper (25) and the ball (24) cooperate with each other.
3. The automatic sample grinding device for chemical analysis according to claim 1, characterized in that: The first grinding grooves (6) and the second grinding grooves (10) are evenly distributed.
4. The automatic sample grinding device for chemical analysis according to claim 1 or 3, characterized in that: The gap between the first grinding groove (6) and the second grinding groove (10) is proportional to the distance between the head of the grinding head (9) and the bottom of the material groove (5).
5. The automatic sample grinding device for chemical analysis according to claim 2, characterized in that: The third gear (22) and the first gear (16) have different numbers of teeth; the second gear (19) and the gear column (11) have different numbers of teeth.