Coal crusher

Abstract

The utility model relates to the technical field of coal mine processing, and discloses a coal crusher which comprises a workbench, a motor and supporting blocks are arranged on one side of the workbench, the output end of the motor is fixedly connected with a rotating shaft, the rotating shaft penetrates through and is rotatably connected to the supporting blocks, and the number of the supporting blocks is two. According to the coal crusher, coal enters the crushing box from the feeding hole, the crushing rollers mounted in the crushing box rotate along with the rotating shaft, and the crushing rollers rotating at a high speed comprehensively strike the large-size coal by virtue of the rotating shaft, so that the large-size coal is split into small-size coal briquettes; coal briquettes are further smashed through two sets of rotating smashing rollers to form coal cinder with the smaller size, secondary collision and beating are conducted through an impact hammer on the inner wall of the smashing box, meanwhile, a motor is used for driving a screen to screen and filter the coal cinder, and the coal cinder meeting the precision requirement is sorted; and coal cinder with the large size is collected in a unified mode so that secondary smashing operation can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine processing, in particular to a coal crusher. Background Art

[0002] Coal crusher is used to crush large coal blocks into coal of required size. Existing coal crushers mostly use motors to drive various complex movable structures to drive the cone blocks to move up and down. When the coal blocks are placed in the gap between the cone blocks and the crushing box, the up and down movement of the cone blocks forces the coal blocks to be squeezed with the cone blocks and the crushing box, and finally the coal blocks are broken into small pieces. However, during the crushing process, due to the up and down movement of the cone blocks, the noise is loud and the efficiency is low, the crushing time is long, and there are problems.

[0003] The utility model patent with patent number CN202021516018.4 discloses a coal crusher, which, when in use, drives the crushing roller to crush the coal by starting the first motor and the second motor to drive the pulley. The coal in the cavity is beaten to the cavity wall in the crushing cavity, and collides and hits with the impact hammer on the inner wall of the crushing cavity and the inner wall of the front shell, making the crushing more efficient. The crushed coal is discharged through the discharge port. The double crushing rollers crush the coal more thoroughly. The impact hammer on the inner wall of the crushing cavity and the inner wall of the front shell performs a second collision and hitting, making the crushing more efficient. The movable front shell is used to facilitate opening the front shell, cleaning the remaining coal in the crushing chamber and drying the chamber, thereby increasing the service life of the internal components. The moisture content of the coal is not high, and the hook is conducive to receiving the cloth hanging, making it convenient to take out the coal.

[0004] Regarding the above-mentioned related technologies, the applicant believes that there are the following defects: Although the above-mentioned existing technical solutions can achieve double-layer crushing of coal, the coal blocks themselves are hard, and their own weight and viscosity lead to poor fluidity, which makes them very easy to stay and accumulate in the crushing equipment, causing blockage or even damage to the equipment. At the same time, the degree of crushing of coal blocks is limited, and it is difficult to meet high-precision requirements, especially for coal blocks with small volume differences. There is a certain degree of sorting difficulty, which greatly affects the quality of coal resources. For this reason, a coal crusher is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a coal crusher.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal crusher includes a workbench, a motor and a support block are provided on one side of the workbench, the output end of the motor is fixedly connected to a rotating shaft, the rotating shaft passes through and is rotatably connected to the support block, the support blocks are provided with two groups, an annular block 1 is sliding on the top of the support block, a screen is installed on the side of the annular block 1 away from the support block, a fixed block 2 is installed on the side of the screen close to the annular block 1, a cylinder 1 is installed on the side of the fixed block 2 away from the screen, a moving block is installed in the middle of the cylinder 1, and a slide groove is provided on the side of the moving block away from the cylinder 1.

[0007] As a further description of the above technical solution:

[0008] One group of support blocks is equipped with a disc, and the disc is provided in two groups. The rotating shaft is installed on the disc on the side away from the motor. The disc is equipped with a second cylinder on the side away from the rotating shaft. The second cylinder is eccentrically arranged with the disc, and the second cylinder slides in the slide groove. The support blocks, discs, annular block one, and fixed block two are all provided in two groups.

[0009] As a further description of the above technical solution:

[0010] A crushing box is provided on the workbench, a discharge port and a groove are provided on one side of the crushing box, a fixed block is installed on the groove, a rotating shaft is rotatable on the fixed block, the rotating shaft is installed on the crushing box away from the fixed block, the rotating shaft passes through and is rotatably connected to the crushing box, two groups of rotating shafts are provided, a driven wheel one is installed on the side of the rotating shaft away from the crushing box, and a group of driven wheels two are installed on the side of the rotating shaft away from the crushing box.

[0011] As a further description of the above technical solution:

[0012] A driving wheel is installed on the rotating shaft, and the driving wheel is located between the support block and the motor. A belt 1 is installed between the driving wheel and the driven wheel 1, and a belt 2 is installed between the driven wheel 1 and the driven wheel 2. A crushing roller is installed on the rotating shaft, and a cutter is provided on the crushing roller. Two sets of rotating shafts and crushing rollers are provided.

[0013] As a further description of the above technical solution:

[0014] Two groups of the fixing blocks and the grooves are provided, and a cover plate is installed on one side of the crushing box close to the discharge port, and bolts are provided on the cover plate.

[0015] As a further description of the above technical solution:

[0016] The top of the crushing box is provided with a feed port, the side wall of the crushing box is provided with a limit block, and irregular impact cones are distributed on the limit blocks.

[0017] As a further description of the above technical solution:

[0018] The workbench is provided with a second discharge port, and the second discharge port is provided with two groups.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, coal enters the crushing box from the feed port, and the crushing roller installed inside the crushing box rotates with the rotating shaft. With the help of the rotating shaft, the high-speed rotating crushing roller comprehensively hits the large volume of coal to split it into smaller coal blocks. The coal blocks are then further crushed by two sets of rotating crushing rollers to make them into smaller coal slag, and the impact hammer on the inner wall of the crushing box performs a secondary collision and hitting. At the same time, the motor drives the screen to screen and filter the coal slag, so as to sort the coal slag that meets the precision requirements, and collect the larger coal slag in a unified manner for the convenience of secondary crushing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of a coal crusher proposed in the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a coal crusher proposed in the utility model;

[0023] Figure 3 This is a schematic diagram of the partial structure of a coal crusher proposed in this utility model Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the partial structure of a coal crusher proposed in this utility model Figure 2 .

[0025] Legend:

[0026] 1. Workbench; 2. Crushing box; 3. Cover plate; 4. Fixed block 1; 5. Limit block; 6. Motor; 7. Rotating shaft; 8. Support block; 9. Disc; 10. Cylinder 1; 11. Cylinder 2; 12. Moving block; 13. Slide; 14. Ring block 1; 15. Screen; 16. Driving wheel; 17. Belt 1; 18. Driven wheel 1; 19. Rotating shaft; 20. Fixed block 2; 21. Belt 2; 22. Driven wheel 2; 23. Crushing roller; 24. Feed port; 25. Discharge port 1; 26. Groove; 27. Discharge port 2; 28. Bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figures 1-4 The utility model provides an embodiment: a coal crusher, including a workbench 1, a motor 6 and a support block 8 are provided on one side of the workbench 1, the output end of the motor 6 is fixedly connected to the rotating shaft 7, the rotating shaft 7 passes through and is rotatably connected to the support block 8, and the support block 8 is provided with two groups. An annular block 14 is sliding on the top of the support block 8, a screen 15 is installed on the side of the annular block 14 away from the support block 8, a fixed block 20 is installed on the side of the screen 15 close to the annular block 14, a cylinder 10 is installed on the side of the fixed block 20 away from the screen 15, a moving block 12 is installed in the middle of the cylinder 10, and a chute 13 is provided on the side of the moving block 12 away from the cylinder 10.

[0029] A group of support blocks 8 are installed with a disc 9, and two groups of discs 9 are provided. The rotating shaft 7 is installed on the disc 9 away from the motor 6. The disc 9 is installed with a cylinder 2 11 on the side away from the rotating shaft 7. The cylinder 2 11 is eccentrically arranged with the disc 9, and the cylinder 2 11 slides in the slide groove 13. There are two groups of support blocks 8, discs 9, annular blocks 14, and fixed blocks 20. A crushing box 2 is provided on the workbench 1. A discharge port 25 and a groove 26 are provided on one side of the crushing box 2. A fixed block 4 is installed on the groove 26. A rotating shaft 19 rotates on the fixed block 4. The rotating shaft 19 is installed on the crushing box 2 away from the fixed block 4. The rotating shaft 19 passes through and is rotatably connected to the crushing box 2. There are two groups of rotating shafts 19. A driven wheel 18 is installed on the side of the rotating shaft 19 away from the crushing box 2. One group of rotating shafts 19 A driven wheel 22 is installed on the side away from the crushing box 2, a driving wheel 16 is installed on the rotating shaft 7, the driving wheel 16 is located between the support block 8 and the motor 6, a belt 17 is installed between the driving wheel 16 and the driven wheel 18, a belt 21 is installed between the driven wheel 18 and the driven wheel 2 22, a crushing roller 23 is installed on the rotating shaft 19, a cutter is provided on the crushing roller 23, two groups of rotating shaft 19 and crushing roller 23 are provided, two groups of fixed block 14 and groove 26 are provided, a cover plate 3 is installed on the side of the crushing box 2 close to the discharge port 125, bolts 28 are provided on the cover plate 3, a feed port 24 is provided on the top of the crushing box 2, a limiting block 5 is provided on the side wall of the crushing box 2, irregular impact cones are evenly distributed on the limiting block 5, and the workbench 1 is provided with a discharge port 27, and two groups of discharge port 27 are provided.

[0030] Working principle: When working, start the motor 6, and drive the disc 9 and the driving wheel 16 to rotate through the rotating shaft 7. The driving wheel 16 drives the belt 17, the driven wheel 18, the rotating shaft 19, the belt 21, and the driven wheel 22 to rotate in turn. With the help of the rotating shaft 19, the high-speed rotating crushing roller 23 comprehensively hits the large volume of coal to split it into smaller coal blocks. Then, the two sets of rotating crushing rollers 23 further crush the coal blocks to make them smaller coal slag. At the same time, the coal is carried to the inner wall of the crushing box 2 in the crushing box 2 and collides with the impact hammer moving block 12 of the limit block 5, making the crushing more efficient. Under the action of gravity, the crushed coal falls into the sieve On the net 15, the motor 6 drives the cylinder 2 11 to rotate through the disc 9, and then drives the cylinder 2 11 to rotate in the chute 13, thereby driving the moving block 12 to slide left and right around the cylinder 2 11, and then drives the cylinder 10 to swing left and right, thereby driving the screen 15 to swing left and right, so that the smaller coal slag passes through the screen 15 and moves to the discharge port 2 27, while the larger coal slag moves to the discharge port 1 25 during the movement process and is discharged. Through subsequent unified collection, when it is necessary to replace the crushing roller 23 and the screen 15, the bolt 28 can be unscrewed, the cover plate 3 can be removed, and the crushing roller 23 and the screen 15 can be replaced. The crushing roller 23 is limited and supported in the motor 6 by setting the fixed block 1 4.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coal crusher, comprising a workbench (1), characterized in that: A motor (6) and a support block (8) are provided on one side of the workbench (1); an output end of the motor (6) is fixedly connected to a rotating shaft (7); the rotating shaft (7) passes through and is rotatably connected to the support block (8); the support block (8) is provided with two groups; an annular block (14) is slidably provided on the top of the support block (8); a screen (15) is installed on the side of the annular block (14) away from the support block (8); a fixed block (20) is installed on the side of the screen (15) close to the annular block (14); a cylinder (10) is installed on the side of the fixed block (20) away from the screen (15); a moving block (12) is installed in the middle of the cylinder (10); a slide groove (13) is provided on the side of the moving block (12) away from the cylinder (10).

2. A coal crusher according to claim 1, characterized in that: A group of the support blocks (8) is provided with a disc (9), and the disc (9) is provided in two groups. The rotating shaft (7) is provided on the disc (9) at a side away from the motor (6). The disc (9) is provided with a second cylinder (11) at a side away from the rotating shaft (7). The second cylinder (11) is eccentrically arranged with the disc (9), and the second cylinder (11) slides in the slide groove (13). The support blocks (8), the disc (9), the first annular block (14), and the second fixed block (20) are all provided in two groups.

3. A coal crusher according to claim 1, characterized in that: A crushing box (2) is provided on the workbench (1), a discharge port (25) and a groove (26) are provided on one side of the crushing box (2), a fixed block (4) is installed on the groove (26), a rotating shaft (19) is rotatable on the fixed block (4), the rotating shaft (19) is installed on the crushing box (2) away from the fixed block (4), the rotating shaft (19) passes through and is rotatably connected to the crushing box (2), two groups of rotating shafts (19) are provided, a driven wheel (18) is installed on the side of the rotating shaft (19) away from the crushing box (2), and a driven wheel (22) is installed on the side of the rotating shaft (19) away from the crushing box (2).

4. A coal crusher according to claim 3, characterized in that: A driving wheel (16) is mounted on the rotating shaft (7), the driving wheel (16) being located between the supporting block (8) and the motor (6), a belt (17) being mounted between the driving wheel (16) and a driven wheel (18), a belt (21) being mounted between the driven wheel (18) and a driven wheel (22), a crushing roller (23) being mounted on the rotating shaft (19), a cutter being provided on the crushing roller (23), and two sets of the rotating shaft (19) and the crushing roller (23) being provided.

5. A coal crusher according to claim 4, characterized in that: The fixing block (4) and the groove (26) are provided in two groups. A cover plate (3) is installed on the side of the crushing box (2) close to the discharge port (25), and a bolt (28) is provided on the cover plate (3).

6. A coal crusher according to claim 3, characterized in that: The top of the crushing box (2) is provided with a feed port (24), and the side wall of the crushing box (2) is provided with a limit block (5), and irregular impact cones are distributed on the limit blocks (5).

7. A coal crusher according to claim 1, characterized in that: The workbench (1) is provided with a second discharge port (27), and the second discharge port (27) is provided with two groups.

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