Grinding tool structure of pulverizer for collapse production

Abstract

The utility model relates to the technical field of flour mill equipment, in particular to a grinding tool structure of a flour mill for collapse production, which comprises a machine body, an upper grinding disc and a lower grinding disc, the machine body is provided with a discharge port, a grinding cavity and a discharge port, the upper grinding disc is rotatably connected in the grinding cavity and driven by a servo motor, and the lower grinding disc is connected in the grinding cavity and driven by a servo motor. The lower grinding disc is slidably connected into the grinding cavity, a fixed disc fixed to the machine body is arranged at the bottom of the lower grinding disc, a jacking block is fixed to the bottom of the lower grinding disc, a movable groove for the jacking block to slide is formed in the fixed disc, and an output shaft is arranged between the jacking block and the inner bottom of the movable groove and rotationally connected with the fixed disc. One end of the output shaft protrudes out of the machine body and is fixed to a gear motor fixed to the machine body, an output disc is fixed to the output shaft, and a plurality of fin-shaped jacking pieces are fixed to the outer side wall of the output disc. By adjusting the distance between the lower grinding disc and the upper grinding disc, limestone is prevented from rolling between the lower grinding disc and the upper grinding disc, so that the grinding efficiency of the limestone is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flour mill equipment, in particular to a grinding tool structure of a flour mill for stockpiling production. Background Art

[0002] The flour mill for stockpiling production is a device used for producing materials such as limestone and gypsum. For the existing flour mill, due to the different hardness of limestone, the particle size after grinding is uneven, and dust is likely to overflow outward through the feeding area, which is not conducive to ensuring environmental safety.

[0003] Based on the above problems, the patent with the publication number CN218689963U discloses a limestone flour mill. This limestone flour mill can screen the powder after grinding in real time during the grinding process of limestone, and automatically carry out the re-grinding work on the coarse powder, thus effectively ensuring the uniform particle size of limestone powder, avoiding over-grinding, ensuring the quality of limestone powder, being able to absorb and filter the generated dust, preventing the dust from spreading outside the lower part of the machine body, and at the same time facilitating the feeding work to avoid the situation of material shortage, and is suitable for the grinding and processing of limestone.

[0004] However, when implementing the above-mentioned limestone flour mill, it is found that it still has at least the following problems. Due to the uneven hardness and size of the limestone to be ground, the larger-sized limestone is likely to accumulate between the hopper and the turntable and is not easily directly ground by the turntable and the fixed plate. Or when the larger limestone is ground by the turntable and the fixed plate, during the grinding process, the edges and corners of the limestone are easily ground flat by the turntable and the fixed plate, and the limestone is easily formed into a spherical or cylindrical shape and rotates and / or rolls between the turntable and the fixed plate, and it takes a long time or subsequent extrusion of limestone to be ground by the turntable and the fixed plate, which not only easily causes the accumulation of limestone but also affects the grinding efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a grinding tool structure of a flour mill for stockpiling production, which can increase the grinding efficiency of the grinding disc on limestone, so as to solve the problem in the prior art that some limestone needs a long time or subsequent extrusion of limestone to be ground by the grinding disc, resulting in the accumulation of limestone and affecting the grinding efficiency.

[0006] To achieve the above object, the utility model provides a grinding tool structure of a grinding mill for heap collapse production, comprising: a machine body, an upper grinding disc and a lower grinding disc. The machine body is provided with a feed inlet, a grinding cavity and a discharge outlet. The upper grinding disc is rotatably connected in the grinding cavity and driven by a servo motor. The lower grinding disc is slidably connected in the grinding cavity. A fixed disc fixed to the machine body is provided at the bottom of the lower grinding disc. A jacking block is fixed to the bottom of the lower grinding disc. A moving groove for the jacking block to slide is formed on the fixed disc. An output shaft is arranged between the jacking block and the inner bottom of the moving groove. The output shaft is rotatably connected to the fixed disc. One end of the output shaft protrudes from the machine body and is fixed to a reduction motor fixed on the machine body. An output disc is fixed on the output shaft. A plurality of fin-shaped jacking members are fixed on the outer side wall of the output disc.

[0007] Optionally, two relatively arranged rectangular moving blocks are fixed on the lower grinding disc. A sliding groove for the moving blocks to slide up and down is formed in the grinding cavity of the machine body.

[0008] Optionally, a filter screen is fixed on the periphery of the fixed disc. The filter screen can wrap the upper grinding disc. Notches corresponding to the two moving blocks are provided on the filter screen.

[0009] Optionally, a plurality of fixing rods are further arranged between the lower grinding disc and the fixed disc. The plurality of fixing rods are all fixed to the bottom of the lower grinding disc. Fixing holes for the fixing rods to slide and be inserted are formed on the fixed disc.

[0010] Optionally, rubber gaskets are arranged between the bottoms of the plurality of fixing rods and the inner bottoms of the fixing holes. The rubber gaskets are fixed to the inner bottoms of the fixing holes.

[0011] Optionally, a plurality of connecting columns are arranged on the periphery of the fixed disc. The two ends of the connecting columns are respectively fixed to the fixed disc and the machine body.

[0012] Compared with the prior art, the utility model provides a grinding tool structure of a grinding mill for heap collapse production, having the following beneficial effects:

[0013] The utility model drives the output shaft and the jacking members on the output disc to rotate through a reduction motor, so that the jacking members jack the jacking block fixed to the bottom of the lower grinding disc, thereby increasing or decreasing the distance between the lower grinding disc and the upper grinding disc, preventing larger limestone from rolling between the lower grinding disc and the upper grinding disc, and solving the problem that in the traditional grinding machine during grinding, it takes a long time to extrude the limestone or the subsequent limestone to be ground, which not only easily causes the accumulation of limestone but also affects the grinding efficiency.

[0014] By providing a filter screen, the utility model can filter the ground limestone, block the limestone that does not meet the grinding requirements between the lower grinding plate and the upper grinding plate, and improve the stability of the limestone grinding between the lower grinding plate and the upper grinding plate.

[0015] By providing a plurality of fixing rods which are fixed at the bottom of the lower grinding plate and are inserted and fixed in the sliding fixing holes, the utility model can prevent the lower grinding plate from being driven by the rotation of the upper grinding plate, so that the lower grinding plate and the upper grinding plate rotate simultaneously, resulting in the problem of reduced grinding efficiency. When the lower grinding plate drops, the fixing rods can play a limiting role on the lower grinding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 shows a schematic diagram of the internal structure of the machine body;

[0018] Figure 3 shows an exploded structural schematic diagram of a part of the structure;

[0019] Figure 4 shows Figure 3 a side view structural schematic diagram of;

[0020] Figure 5 shows a schematic diagram of the internal structure of the fixed disk.

[0021] In the figure: 1, machine body; 2, upper grinding plate; 3, lower grinding plate; 4, feed inlet; 5, grinding cavity; 6, discharge outlet; 7, servo motor; 8, fixed disk; 9, pushing block; 10, moving groove; 11, output shaft; 12, reduction motor; 13, output disk; 14, pushing member; 15, moving block; 16, sliding groove; 17, filter screen; 18, notch; 19, fixing rod; 20, fixing hole; 21, rubber gasket; 22, connecting column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment: Please refer to Figures 1 to 5, according to an embodiment of the present utility model, a technical solution is provided: a grinding tool structure of a grinding mill for heap collapse production, including: a machine body 1, an upper grinding disc 2 and a lower grinding disc 3. The machine body 1 is provided with a feed inlet 4, a grinding cavity 5 and a discharge outlet 6. The upper grinding disc 2 is rotatably connected in the grinding cavity 5 and driven by a servo motor 7. The lower grinding disc 3 is slidably connected in the grinding cavity 5. A fixed disc 8 fixed to the machine body 1 is provided at the bottom of the lower grinding disc 3. A jacking block 9 is fixed to the bottom of the lower grinding disc 3. A moving groove 10 for the jacking block 9 to slide is formed on the fixed disc 8. An output shaft 11 is arranged between the jacking block 9 and the inner bottom of the moving groove 10. The output shaft 11 is rotatably connected to the fixed disc 8. One end of the output shaft 11 protrudes from the machine body 1 and is fixed to a reduction motor 12 fixed on the machine body 1. An output disc 13 is fixed on the output shaft 11. A plurality of fin-shaped jacking members 14 are fixed on the outer side wall of the output disc 13.

[0024] For the grinding tool structure of the grinding mill for heap collapse production with the above structure, limestone is poured along the discharge outlet 6 and enters between the upper grinding disc 2 and the lower grinding disc 3. The servo motor 7 drives the upper grinding disc 2 to grind the limestone. During the grinding process, the reduction motor 12 drives the output shaft 11 and the jacking members 14 on the output disc 13 to rotate. During the rotation, the jacking members 14 jack the jacking block 9 fixed to the bottom of the lower grinding disc 3, jacking the lower grinding disc 3 up or down, increasing or decreasing the distance between the lower grinding disc 3 and the upper grinding disc 2. When the distance becomes larger, the larger limestone rolls or slides downward under the influence of gravity. When the lower grinding disc 3 is jacked up, the distance becomes smaller, and the lower grinding disc 3 and the upper grinding disc 2 grind the larger limestone, thereby preventing the larger limestone from rolling between the lower grinding disc 3 and the upper grinding disc 2, reducing the situation that some limestone is prone to form spherical or cylindrical shapes during the grinding process and requires a long time or subsequent limestone extrusion to be ground, not only preventing limestone accumulation but also increasing the grinding efficiency.

[0025] In this embodiment, two relatively arranged rectangular moving blocks 15 are fixed on the lower grinding disc 3. A sliding groove 16 for the moving blocks 15 to slide up and down is formed in the grinding cavity 5 of the machine body 1. By arranging the rectangular moving blocks 15 on the lower grinding disc 3 and making the moving blocks 15 move up and down in the sliding groove 16, it is prevented that the lower grinding disc 3 deviates during the jacking process, causing the distance between one side of the lower grinding disc 3 and the upper grinding disc 2 to become larger, resulting in some unground limestone falling into the discharge outlet 6 along the side with the larger distance, affecting the grinding effect of the limestone.

[0026] In this embodiment, a filter screen 17 is fixed on the periphery of the fixed disc 8. The filter screen 17 can wrap the upper grinding disc 2. Notches 18 corresponding to the two moving blocks 15 are provided on the filter screen 17. By arranging the filter screen 17, the ground limestone can be filtered, and the limestone that does not meet the grinding requirements can be blocked between the lower grinding disc 3 and the upper grinding disc 2, increasing the stability of the grinding of the limestone by the lower grinding disc 3 and the upper grinding disc 2.

[0027] In this embodiment, a plurality of fixing rods 19 are further provided between the lower grinding disc 3 and the fixing disc 8. The plurality of fixing rods 19 are all fixed to the bottom of the lower grinding disc 3. Fixing holes 20 for the fixing rods 19 to slide and insert are formed in the fixing disc 8. By providing a plurality of fixing rods 19, and the fixing rods 19 are fixed to the bottom of the lower grinding disc 3 and slide and insert into the fixing holes 20, the problem that the lower grinding disc 3 is driven by the rotation of the upper grinding disc 2, and then the lower grinding disc 3 and the upper grinding disc 2 rotate simultaneously, resulting in a decrease in grinding efficiency can be prevented. And when the lower grinding disc 3 descends, the fixing rods 19 can play a role in limiting the lower grinding disc 3.

[0028] In this embodiment, a rubber gasket 21 is provided between the bottoms of the plurality of fixing rods 19 and the inner bottom of the fixing holes 20. The rubber gasket is fixed to the inner bottom of the fixing holes 20. By providing the rubber gasket 21, it is possible to prevent the fixing rods 19 from falling on the bottom of the fixing holes 20 multiple times, causing wear of the fixing rods 19 and / or the fixing disc 8, and it can also play a shock-absorbing effect when the lower grinding disc 3 descends.

[0029] In this embodiment, a plurality of connecting columns 22 are provided on the periphery of the fixing disc 8. The two ends of the connecting columns 22 are respectively fixed to the fixing disc 8 and the machine body 1. By providing a plurality of connecting columns 22, it is possible to prevent too much limestone from accumulating on the connecting columns 22, thereby causing the problem that the limestone accumulates at the discharge port 6 and blocks the discharge port 6.

[0030] Working principle: Pour the limestone along the discharge port 6 into the space between the upper grinding disc 2 and the lower grinding disc 3. The servo motor 7 drives the upper grinding disc 2 to rotate. The grinding surface of the upper grinding disc 2 abuts against the grinding surface of the lower grinding disc 3 to grind the limestone. At the same time, the output end of the reduction motor 12 drives the output shaft 11 and the ejector 14 on the output disc 13 to rotate. During the rotation, the ejector 14 ejects the ejector block 9 fixed at the bottom of the lower grinding disc 3. At this time, the upper end of the lower grinding disc 3 reduces the distance between the lower grinding disc 3 and the upper grinding disc 2, and this distance is the distance during normal grinding. When the ejector 14 rotates, the ejector 14 does not abut against the ejector block 9, and the lower grinding disc 3 is affected by gravity and drives the ejector block 9 to move downward and abut against the output disc 13. At this time, the distance between the lower grinding disc 3 and the upper grinding disc 2 increases. The larger limestone rolls or slides downward under the influence of gravity (the middle of the lower grinding disc 3 bulges upward and the middle of the upper grinding disc 2 is concave inward) to the periphery of the lower grinding disc 3 and the upper grinding disc 2. The limestone that meets the grinding requirements is filtered by the filter net 17, and vice versa, it is blocked by the filter net 17. Then the ejector 14 rotates to reduce the distance between the lower grinding disc 3 and the upper grinding disc 2, squeezing and crushing or clamping the larger limestone, so as to carry out grinding to achieve the effect of rapid grinding. And when the lower grinding disc 3 rotates with the upper grinding disc 2, due to the multiple fixing rods 19, it can prevent the lower grinding disc 3 and the upper grinding disc 2 from rotating simultaneously. When the lower grinding disc 3 drops, the rubber gasket 21 can prevent the fixing rods 19 from falling on the bottom of the fixing holes 20 multiple times, causing wear of the fixing rods 19 and / or the fixing disc 8, and can play a shock-absorbing effect when the lower grinding disc 3 drops.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The grinding tool structure of a grinding mill for heap collapse production, characterized in that, Including: A machine body (1), an upper grinding disc (2) and a lower grinding disc (3). A feed inlet (4), a grinding cavity (5) and a discharge outlet (6) are provided on the machine body (1). The upper grinding disc (2) is rotatably connected in the grinding cavity (5) and driven by a servo motor (7). The lower grinding disc (3) is slidably connected in the grinding cavity (5). A fixing disc (8) fixed to the machine body (1) is provided at the bottom of the lower grinding disc (3). A jacking block (9) is fixed to the bottom of the lower grinding disc (3). A moving groove (10) for the jacking block (9) to slide is formed on the fixing disc (8). An output shaft (11) is arranged between the jacking block (9) and the inner bottom of the moving groove (10). The output shaft (11) is rotatably connected to the fixing disc (8). One end of the output shaft (11) protrudes from the machine body (1) and is fixed to a reduction motor (12) fixed on the machine body (1). An output disc (13) is fixed on the output shaft (11). A plurality of fin-shaped jacking members (14) are fixed on the outer side wall of the output disc (13).

2. The abrasive tool structure of a grinding mill for heap collapse production according to claim 1, characterized in that: Two relatively arranged rectangular moving blocks (15) are fixed on the lower grinding disc (3). A sliding groove (16) for the moving blocks (15) to slide up and down is formed in the grinding cavity (5) of the machine body (1).

3. The abrasive tool structure of a grinding mill for heap collapse production according to claim 2, characterized in that: A filter screen (17) is fixed to the periphery of the fixing disc (8). The filter screen (17) can wrap the upper grinding disc (2). Notches (18) corresponding to the two moving blocks (15) are provided on the filter screen (17).

4. The abrasive tool structure of a grinding mill for heap collapse production according to claim 1, characterized in that: A plurality of fixing rods (19) are further arranged between the lower grinding disc (3) and the fixing disc (8). The plurality of fixing rods (19) are all fixed to the bottom of the lower grinding disc (3). Fixing holes (20) for the fixing rods (19) to slide and be inserted are formed on the fixing disc (8).

5. The abrasive tool structure of a grinding mill for heap collapse production according to claim 4, characterized in that: A rubber gasket (21) is arranged between the bottoms of the plurality of fixing rods (19) and the inner bottom of the fixing holes (20). The rubber gasket (21) is fixed to the inner bottom of the fixing holes (20).

6. The abrasive tool structure of a flour mill for heap collapse production according to claim 1, characterized in that: A plurality of connecting columns (22) are arranged on the periphery of the fixing disc (8). The two ends of the connecting columns (22) are respectively fixed to the fixing disc (8) and the machine body (1).

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