Divider

Abstract

The utility model relates to the technical field of material division equipment, in particular to a divider. Materials can be crushed, and the sampling amount of the materials can be accurately controlled; material leakage is effectively prevented while intermittent sampling is realized; comprising a rack, a mounting frame mounted on the rack, and a crushing and division integrated mechanism and a weighing mechanism which are mounted on the mounting frame, the crushing and division integrated mechanism comprises a cylinder body, a hollow shaft rotationally mounted on the cylinder body, a crushing disc cutter fixedly mounted on the hollow shaft, a first driver for providing power for rotation of the hollow shaft, a driving shaft penetrating through the hollow shaft and rotationally connected with the hollow shaft, and a second driver for providing power for rotation of the driving shaft; the barrel comprises a straight barrel part, a conical barrel part and a discharging pipe, the crushing disc cutter is located in the straight barrel part, a spiral conveying blade is arranged on the driving shaft and extends into the discharging pipe, and the outer diameter of the spiral conveying blade is matched with the inner diameter of the discharging pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of material reduction equipment, and in particular to a reduction device. Background Technology

[0002] In laboratory analysis, precise analysis and testing of large quantities of raw samples are required. A sample reduction machine can quickly reduce the size of raw samples for use in subsequent analysis and testing instruments.

[0003] For example, Chinese invention patent CN104897440B discloses a sample reduction device, relating to the field of coal sample preparation technology, which can solve the technical problem of low operational reliability of reduction devices. This sample reduction device includes, from top to bottom, a distributor, a reduction funnel, and a sample retainer. The distributor includes a distributor body with a conical outer surface, and several guide channels are provided on the outer surface of the distributor body. Each guide channel is inclined from top to bottom in the same direction. The distributor body is loosely fitted onto a vertically placed fixed shaft, which is fixedly connected to the reduction funnel, and the fixed shaft and the reduction funnel are coaxial. The reduction funnel has an inverted conical structure, and a material discharge hole is provided on the side wall of the reduction funnel. This sample reduction device is used to reduce the size of samples.

[0004] However, when the inventors implemented this device, they found the following defects: multiple samples of experimental materials are often required, and the weight of multiple samples is also subject to certain standards. It is difficult to control the amount of material extracted by the above-mentioned divider, and it is often necessary to weigh and adjust the sampled material a second time. Excess material is easily scattered during the material sampling process, making it difficult to sample intermittently. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a material divider that can crush materials and precisely control the material sampling amount; while achieving intermittent sampling, it effectively prevents material leakage.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a crusher, comprising a frame, a mounting bracket mounted on the frame, an integrated crushing and crushing mechanism mounted on the mounting bracket, and a weighing mechanism. The integrated crushing and crushing mechanism includes a cylinder, a hollow shaft rotatably mounted on the cylinder, a crushing disc blade fixedly mounted on the hollow shaft, a first driver providing power for the rotation of the hollow shaft, a drive shaft passing through the hollow shaft and rotatably connected to the hollow shaft, and a second driver providing power for the rotation of the drive shaft. The cylinder includes a straight section, a conical section, and a discharge pipe, with the crushing disc blade located in the straight section. Inside, the drive shaft is equipped with a spiral conveying blade that extends into the discharge pipe, and the outer diameter of the spiral conveying blade matches the inner diameter of the discharge pipe; the weighing mechanism includes a weighing device placed on the frame and a sampling box placed on the weighing device, and the discharge end of the discharge pipe extends above the sampling box; furthermore, the weighing device is connected to the second driver via an external PLC control system; the first driver includes a motor and a transmission belt, and the motor is connected to the hollow shaft via the transmission belt; the second driver uses a motor, and the output end of the motor is connected to the drive shaft.

[0009] Preferably, a screen is installed at the bottom of the crushing disc, the screen is located at the junction of the straight section and the conical section, and the outer diameter of the screen matches the inner diameter of the large diameter end of the conical section.

[0010] Preferably, the system also includes a mechanical slide table, which is fixedly mounted on the frame, and the mounting bracket is fixedly mounted on the mechanical slide table.

[0011] Preferably, the mechanical slide is inclined at an angle of 30°-60° to the top horizontal plane of the frame.

[0012] Preferably, the top of the straight cylindrical section is provided with a movable cover, which is locked to the straight cylindrical section by a clamping member. The clamping member includes an L-shaped frame, a pressure plate hinged to the L-shaped frame, and a locking bolt connecting the pressure plate and the L-shaped frame.

[0013] Preferably, the second driver is a speed-regulating motor; further, the speed-regulating motor can rotate in both forward and reverse directions. Speed-regulating motors that can rotate in both directions are conventional and known products on the market. Their internal structure and control principle are not within the scope of protection of this case. Any motor with appropriate power that can achieve forward and reverse rotation and has speed regulation function is acceptable. No further details or limitations will be made here.

[0014] Preferably, the outer wall of the drive shaft is provided with a baffle and agitator blade that fits into the cone section on the side away from the discharge end of the discharge pipe. There are at least two sets of baffle and agitator blades, and a gap is left between each pair of adjacent baffle and agitator blades.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a shrinkage device with the following advantages: large pieces of material are placed into the cylinder, the first driver drives the hollow shaft and the crushing disc on the hollow shaft to rotate, at which time the spiral conveyor blades are stationary and the discharge pipe is blocked. The crushed material enters the conical section. The second driver is started, and the second driver drives the drive shaft and the spiral conveyor blades to slowly transport the crushed material through the discharge pipe to the sampling box. The material falling into the sampling box is weighed by a weighing device. When the sampling amount is reached, the second driver stops running. The large pieces of material are crushed and quantitatively sampled. The equipment layout is scientific and reasonable. It can perform appropriate quantitative sampling of materials according to the standard of different material sampling amounts, realize intermittent sampling, and effectively prevent material leakage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a top view schematic diagram of the structure of this utility model;

[0019] Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0020] Figure 4 This is a three-dimensional structural diagram of the crushing disc and screen of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the spiral conveyor blade and the baffle agitator blade of this utility model;

[0022] The following components are labeled in the attached diagram: 1. Frame; 2. Mounting frame; 3. Hollow shaft; 4. Crushing disc cutter; 5. First driver; 6. Drive shaft; 7. Second driver; 8. Straight cylinder section; 9. Conical cylinder section; 10. Discharge pipe; 11. Screw conveyor blade; 12. Weighing device; 13. Sampling box; 14. Screening plate; 15. Mechanical slide table; 16. Cover; 17. L-shaped frame; 18. Pressure plate; 19. Locking bolt; 20. Material blocking and stirring blade. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-3 This utility model discloses a crushing and dividing device, comprising a frame 1, a mounting bracket 2 mounted on the frame 1, an integrated crushing and dividing mechanism and a weighing mechanism mounted on the mounting bracket 2. The integrated crushing and dividing mechanism includes a cylinder, a hollow shaft 3 rotatably mounted on the cylinder, a crushing disc cutter 4 fixedly mounted on the hollow shaft 3, a first driver 5 providing power for the rotation of the hollow shaft 3, a drive shaft 6 passing through the hollow shaft 3 and rotatably connected to the hollow shaft 3, and a second driver 7 providing power for the rotation of the drive shaft 6. The cylinder includes a straight cylinder section 8, a conical cylinder section 9, and a discharge pipe 10. The crushing disc cutter 4 is located inside the straight cylinder section 8, and the drive shaft 6... The upper part is provided with a spiral conveyor blade 11, which extends into the discharge pipe 10, and the outer diameter of the spiral conveyor blade 11 matches the inner diameter of the discharge pipe 10; the weighing mechanism includes a weighing device 12 placed on the frame 1 and a sampling box 13 placed on the weighing device 12, and the discharge end of the discharge pipe 10 extends above the sampling box 13; furthermore, the weighing device 12 is connected to the second driver 7 via an external PLC control system; the first driver 5 includes a motor and a transmission belt, and the motor is connected to the hollow shaft 3 via the transmission belt; the second driver 7 uses a motor, and the output end of the motor is connected to the drive shaft 6.

[0026] For details, please refer to Figure 1 The top of the straight section 8 is provided with a movable cover 16, which is locked to the straight section 8 by a clamping member. The clamping member includes an L-shaped frame 17, a pressure plate 18 hinged to the L-shaped frame 17, and a locking bolt 19 connecting the pressure plate 18 and the L-shaped frame 17.

[0027] Specifically, the second driver 7 is a speed-regulating motor; furthermore, the speed-regulating motor can rotate in both forward and reverse directions. Speed-regulating motors that can rotate in both directions are common and known products on the market. Their internal structure and control principle are not within the scope of protection of this case. Any motor with appropriate power that can achieve forward and reverse rotation and has speed regulation function is acceptable. No further details or limitations will be made here.

[0028] For details, please refer to Figure 5 The outer wall of the drive shaft 6 is provided with a baffle agitator 20 that fits with the cone section 9 on the side away from the discharge end of the discharge pipe 10. There are at least two sets of baffle agitators 20, and a gap is left between each pair of adjacent baffle agitators 20.

[0029] The material divider provided in this embodiment closes the feed inlet on the cylinder after the material enters it. Material crushing takes place within the closed cylinder, isolating the crushing and dividing areas from the external environment. This ensures the sample is not contaminated by external impurities during the entire dividing process, guaranteeing sample purity and accuracy. When different materials need to be divided, the pressure plate 18 can be removed by tightening the locking bolt 19. Then, the straight cylinder 8, conical cylinder 9, and discharge pipe 10 can be removed from the self-sealing cover 16 to clean the inside of the cylinder. Material adhering to the crushing disc 4, drive shaft 6, and spiral conveyor blades 11 is also cleaned to prevent residual material from affecting subsequent sample collection and ensure sampling accuracy. During material crushing, the second drive 7 reverses direction, at which point the spiral conveyor blades 11... The material at the discharge pipe 10 is conveyed upwards to prevent it from being discharged directly from the discharge pipe 10. When sampling is required, the second driver 7 rotates forward. By adjusting the speed of the second driver 7, the amount of material discharged from the discharge pipe 10 is controlled. In the initial stage of sampling, the screw conveyor blade 11 rotates rapidly to ensure the sampling speed of the material sample. When it approaches the standard value of the sampling amount, the second driver 7 drives the screw conveyor blade 11 to rotate slowly to avoid excessive material discharge at the discharge pipe 10, which would cause a deviation in the sampling amount. The speed of the screw conveyor blade 11 can be adjusted appropriately according to the sampling accuracy to further improve the sampling accuracy of the material. The baffle agitator blade 20 can prevent the crushed material from concentrating into the discharge pipe 10 and at the same time disperse the material a second time to avoid clogging the discharge pipe 10.

[0030] Example 2

[0031] Please refer to Figure 3-4 The bottom of the crushing disc 4 is equipped with a screen 14, which is located at the junction of the straight cylinder 8 and the conical cylinder 9. The outer diameter of the screen 14 matches the inner diameter of the large diameter end of the conical cylinder 9.

[0032] Specifically, it also includes a mechanical slide 15, which is fixedly installed on the frame 1, and a mounting bracket 2 is fixedly installed on the mechanical slide 15.

[0033] Specifically, the mechanical slide 15 is set at an angle of 30°-60° to the top horizontal plane of the frame 1.

[0034] The separator provided in this embodiment allows small-diameter materials after crushing to pass through the sieve plate 14, while large-diameter materials are left on the sieve plate 14 and subjected to secondary crushing by the crushing disc blade 4. This avoids the mixing of large particles into the sampled material. The sieve plate 14 can separate the material from the crushed material, ensuring the particle accuracy of the sampled material. During the discharge process into the sampling box 13, the mechanical slide 15 is activated. The inclined mechanical slide 15 allows the discharge pipe 10 to move laterally within the sampling box 13, causing the material to fall into the sampling box 13 in a dispersed manner. At the same time, the discharge pipe 10 moves upward slowly, and the distance between the bottom of the discharge pipe 10 and the material falling into the sampling box 13 is always kept below 1 cm to prevent the discharge pipe 10 from falling too high and causing some powdery material to fly away.

[0035] In use, large pieces of material are placed into the cylinder. The first driver 5 drives the hollow shaft 3 and the crushing disc 4 on the hollow shaft 3 to rotate. At this time, the spiral conveyor blade 11 is stationary and the discharge pipe 10 is blocked. The crushed material falls to the screen plate 14. During the rotation of the screen plate 14, the crushed small particles are screened out and enter the cone section 9. The second driver 7 is started. The second driver 7 drives the drive shaft 6 and the spiral conveyor blade 11 to slowly transport the crushed material through the discharge pipe 10 to the sampling box 13. At the same time, the mechanical slide 15 is started. As the material is discharged, the discharge pipe 10 moves in the sampling box 13 and gradually moves upward. The weighing device 12 weighs the material falling into the sampling box 13. When the sampling amount is reached, the second driver 7 stops running and the sampled material in the sampling box 13 can be taken out.

[0036] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A divider, characterized in that; The system includes a frame (1), a mounting bracket (2) mounted on the frame (1), a crushing and splitting integrated mechanism and a weighing mechanism mounted on the mounting bracket (2). The crushing and splitting integrated mechanism includes a cylinder, a hollow shaft (3) rotatably mounted on the cylinder, a crushing disc cutter (4) fixedly mounted on the hollow shaft (3), a first drive (5) that provides power for the rotation of the hollow shaft (3), a drive shaft (6) that passes through the hollow shaft (3) and is rotatably connected to the hollow shaft (3), and a second drive (7) that provides power for the rotation of the drive shaft (6). The cylinder includes a straight... The machine includes a cylindrical section (8), a conical section (9), and a discharge pipe (10). The crushing disc (4) is located inside the cylindrical section (8). The drive shaft (6) is provided with a spiral conveying blade (11). The spiral conveying blade (11) extends into the discharge pipe (10). The outer diameter of the spiral conveying blade (11) matches the inner diameter of the discharge pipe (10). The weighing mechanism includes a weighing device (12) placed on the frame (1) and a sampling box (13) placed on the weighing device (12). The discharge end of the discharge pipe (10) extends above the sampling box (13).

2. The divider according to claim 1, characterized in that, The bottom of the crushing disc (4) is equipped with a screen (14), which is located at the junction of the straight cylinder (8) and the conical cylinder (9). The outer diameter of the screen (14) matches the inner diameter of the large diameter end of the conical cylinder (9).

3. The divider according to claim 1 or 2, characterized in that, It also includes a mechanical slide (15), which is fixedly installed on the frame (1), and the mounting bracket (2) is fixedly installed on the mechanical slide (15).

4. The divider according to claim 3, characterized in that, The mechanical slide (15) is set at an angle of 30°-60° to the top horizontal plane of the frame (1).

5. The divider according to claim 2, characterized in that, The top of the straight cylindrical part (8) is provided with a movable cover (16), and the cover (16) is locked to the straight cylindrical part (8) by a clamping member. The clamping member includes an L-shaped frame (17), a pressure plate (18) hinged to the L-shaped frame (17), and a locking bolt (19) connecting the pressure plate (18) and the L-shaped frame (17).

6. The divider according to claim 1, characterized in that, The second driver (7) is a speed-regulating motor.

7. The divider according to claim 1, characterized in that, The drive shaft (6) has a baffle agitator (20) on the outer wall away from the discharge end of the discharge pipe (10) and it fits into the cone part (9). There are at least two sets of baffle agitators (20), and there is a gap between each pair of adjacent baffle agitators (20).

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