Coal mine screening equipment

Abstract

The utility model relates to the technical field of coal mine production, and discloses coal mine screening equipment which comprises a screening box, a vertical plate is fixedly connected to the outer wall of the screening box, a first motor is fixedly connected to the outer wall of the vertical plate, and the output end of the first motor is rotationally connected to the interior of the vertical plate and fixedly connected with a first gear. A first short column and a second short column are fixedly connected to the outer wall of the vertical plate, a second sliding column is fixedly connected to the interior of the first gear, a second gear is connected to the tooth end of the first gear in a meshed mode, and a first sliding column is fixedly connected to the interior of the second gear. According to the coal mine multi-stage screening device, through mutual cooperation of the vertical plate, the first short column, the second short column, the first rectangular frame, the second rectangular frame, the first motor, the first gear, the second gear, the first sliding column, the second sliding column and the screening assembly, the first-stage screening plate and the second-stage screening plate vibrate together to achieve multi-stage screening of a coal mine, and multi-stage screening of the coal mine can be achieved without a plurality of power systems; and the equipment purchase cost is reduced, and the installation and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal mine production technology, and in particular to a coal mine screening device. Background Technology

[0002] With the advancement of coal mining technology, the scale of coal mining has been continuously expanding. Modern coal mining equipment enables large-scale and efficient coal mining operations, resulting in a significant increase in the output of raw coal. However, the quality and particle size of raw coal vary considerably, leading to the development of screening equipment, which has become a key piece of equipment in the post-mining processing stage of modern coal mining.

[0003] A coal screening device is disclosed in publication number CN221246019U, comprising a housing with a feed hopper fixedly installed on its upper surface and a dust-blocking mechanism on its lower side. The housing contains two rotating frames. This application utilizes a vibration mechanism to activate a drive motor, which in turn rotates a rotating disk at its output end, causing a fixed rod on its surface to rotate in a circular motion. The fixed rod is slidably connected within a connecting member, and the sliding rod is slidably connected to the top of the fixed housing. This allows the fixed rod to rotate, causing the sliding rod, top block, and connecting member to reciprocate up and down. The top block pushes the rotating frames upwards. When the rotating frames rotate upwards, a second spring deforms. When the top block moves downwards, the second spring pushes the rotating frames downwards with its own elasticity, facilitating the up-and-down movement of the rotating frames to screen the coal, preventing filter clogging and accumulation that could hinder coal screening.

[0004] The aforementioned application facilitates the up-and-down movement of the rotating frame for coal screening, preventing filter clogging and accumulation that could affect coal screening. However, to achieve multi-stage coal screening, multiple power systems are required. Multiple power systems mean the need to purchase multiple power equipment, along with corresponding control devices and transmission components, which undoubtedly increases equipment procurement costs significantly. Installing multiple power systems requires more manpower, resources, and time for equipment debugging, increasing installation complexity and costs. The increased number of power systems also leads to a corresponding increase in maintenance workload and costs, resulting in higher maintenance costs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coal mine screening device, which aims to improve the problem of setting up multiple power systems, which would significantly increase the procurement cost of the equipment and increase the complexity and cost of installation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A coal mine screening device includes a screen box. A vertical plate is fixedly connected to the outer wall of the screen box. A motor is fixedly connected to the outer wall of the vertical plate. The output end of the motor is rotatably connected to the inside of the vertical plate and fixedly connected to a gear. Short columns one and two are fixedly connected to the outer wall of the vertical plate. A sliding column two is fixedly connected inside the gear one. The teeth of the gear one mesh with the gear two. A sliding column one is fixedly connected inside the gear two. A cylinder is fixedly connected inside the gear two. The outer wall of the cylinder is rotatably connected to the inside of the vertical plate. A rectangular frame one is rotatably connected to the outer wall of the short column one. The outer wall of the sliding column two is slidably connected to the inner wall of the rectangular frame one. A screening assembly is provided on the inner wall of the screen box.

[0008] Preferably, the screening component includes a first fixing block and a second fixing block. The outer wall of the first fixing block is fixedly connected to the inner wall of the screen box, and the outer wall of the second fixing block is fixedly connected to the inner wall of the screen box. One end of a first spring is fixedly connected to the lower surface of the first fixing block, and the other end of the first spring is fixedly connected to a primary screen plate. The outer wall of the first rectangular frame is connected to the lower surface of the primary screen plate. One end of the second spring is fixedly connected to the upper surface of the second fixing block, and the other end of the second spring is fixedly connected to a secondary screen plate. The outer wall of the second rectangular frame is connected to the upper surface of the secondary screen plate.

[0009] Preferably, a support block is fixedly connected to the outer wall of the sieve box, and a base is fixedly connected to the outer wall of the support block.

[0010] Preferably, a second fixing plate is fixedly connected to the inner wall of the base, a rectangular plate is fixedly connected to the inner wall of the base, a U-shaped groove is provided on the outer wall of the rectangular plate, and a first receiving box is slidably connected to the upper surface of the base.

[0011] Preferably, a second motor is fixedly connected to the outer wall of the base, the output end of the second motor is rotatably connected to the inside of the base and fixedly connected to a first wheel, the outer wall of the first wheel is provided with a belt, the inner wall of the belt is provided with a second wheel, and one end of the second wheel is rotatably connected to the inner wall of the base.

[0012] Preferably, a clamping block is fixedly connected to the outer wall of the belt, and the upper surface of the clamping block is fixedly connected to the lower surface of the receiving box.

[0013] Preferably, a clamping block two is fixedly connected to the outer wall of the belt, and a sliding plate is fixedly connected to the outer wall of the clamping block two. The lower surface of the sliding plate is slidably connected to the upper surface of the fixed plate two, and the lower surface of the sliding plate is slidably connected to the upper surface of the rectangular plate.

[0014] Preferably, a sliding column is slidably connected inside the sliding plate, a receiving box two is fixedly connected to the top of the sliding column, a connecting rod is fixedly connected to the lower surface of the receiving box two, a round pin is fixedly connected to the outer wall of the connecting rod, and the outer wall of the round pin is slidably connected to the inner wall of the U-shaped groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model achieves multi-stage screening of coal mines by cooperating with the vertical plate, short column one, short column two, rectangular frame one, rectangular frame two, motor one, gear one, gear two, sliding column one, sliding column two, and screening components, so that the primary screen plate and the secondary screen plate vibrate together. This eliminates the need for multiple power systems to achieve multi-stage screening of coal mines, reducing equipment procurement costs and installation and maintenance costs.

[0017] 2. This utility model achieves continuous feeding through the cooperation of motor 2, rotating wheel 1, rotating wheel 2, clamping block 1, belt, clamping block 2, receiving box 1, fixing plate 2, rectangular plate, sliding plate, sliding column, connecting rod, receiving box 2 and round pin, which can minimize downtime and improve the efficiency of the entire production process. Attached Figure Description

[0018] Figure 1 This is a perspective view of a coal mine screening device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the screen box of a coal mine screening equipment proposed in this utility model;

[0020] Figure 3 This is a partial structural diagram of a clamping block in a coal mine screening device proposed in this utility model;

[0021] Figure 4 This is a partial structural diagram of the receiving box of a coal mine screening equipment proposed in this utility model.

[0022] Legend:

[0023] 1. Screen box; 2. Vertical plate; 3. Short column one; 4. Short column two; 5. Rectangular frame one; 6. Rectangular frame two; 7. Motor one; 8. Gear one; 9. Gear two; 10. Sliding column one; 11. Sliding column two; 12. Fixing block one; 13. Spring one; 14. Primary screen plate; 15. Fixing block two; 16. Spring two; 17. Secondary screen plate; 18. Cylinder; 19. Support block; 20. Base; 21. Motor two; 22. Rotary wheel one; 23. Rotary wheel two; 24. Clamping block one; 25. Belt; 26. Clamping block two; 27. Receiving box one; 28. Fixing plate two; 29. ​​Rectangular plate; 30. Sliding plate; 31. Sliding column; 32. Connecting rod; 33. Receiving box two; 34. Round pin; 35. U-shaped groove. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Reference Figure 1 - Figure 2This utility model provides an embodiment of a coal mine screening device, including a screen box 1. A vertical plate 2 is fixedly connected to the outer wall of the screen box 1. A motor 7 is fixedly connected to the outer wall of the vertical plate 2. The output end of the motor 7 is rotatably connected to the inside of the vertical plate 2 and fixedly connected to a gear 8. Short columns 3 and 4 are fixedly connected to the outer wall of the vertical plate 2. A sliding column 11 is fixedly connected inside the gear 8. A gear 9 is meshed with the tooth end of the gear 8. A sliding column 10 is fixedly connected inside the gear 9. A cylinder 18 is fixedly connected inside the gear 9. The outer wall of the cylinder 18 is rotatably connected to the inside of the vertical plate 2. A rectangular frame 5 is rotatably connected to the outer wall of the short column 3. The outer wall of the sliding column 11 is slidably connected to the inner wall of the rectangular frame 5. A rectangular frame 6 is rotatably connected to the outer wall of the short column 4. The outer wall of rectangular frame 1 is slidably connected to the inner wall of rectangular frame 2 6, the outer wall of rectangular frame 1 is slidably connected to the inner wall of screen box 1, the outer wall of rectangular frame 2 6 is slidably connected to the inner wall of screen box 1, and a screening component is provided on the inner wall of screen box 1; the screening component includes fixed block 1 12 and fixed block 2 15, the outer wall of fixed block 1 12 is fixedly connected to the inner wall of screen box 1, the outer wall of fixed block 2 15 is fixedly connected to the inner wall of screen box 1, one end of spring 13 is fixedly connected to the lower surface of fixed block 12, the other end of spring 13 is fixedly connected to the primary screen plate 14, the outer wall of rectangular frame 1 5 is connected to the lower surface of primary screen plate 14, one end of spring 2 16 is fixedly connected to the upper surface of fixed block 2 15, the other end of spring 2 16 is fixedly connected to the secondary screen plate 17, and the outer wall of rectangular frame 2 6 is connected to the upper surface of secondary screen plate 17;

[0026] Specifically, the screen box 1 can fix the vertical plate 2, and the vertical plate 2 can fix the motor 7, improving the stability of the motor 7 during operation. The motor 7, fixed to the outer wall of the vertical plate 2, can rotate the gear 8, which in turn rotates the gear 9, causing the sliding columns 11 and 10 to rotate respectively. The rotation of the sliding column 11 causes it to slide on the inner wall of the rectangular frame 5, causing the rectangular frame 5 to rotate and oscillate back and forth on the outer wall of the short column 3. The rotation of the sliding column 10 causes it to slide... The inner wall of rectangular frame 2 6 causes rectangular frame 2 6 to rotate and swing back and forth on the outer wall of short column 2 4. The screen box 1 can fix fixed block 1 12 and fixed block 2 15. During the intermittent impact of rectangular frame 1 5 on the primary screen plate 14, under the action of spring 1 13, the contraction and rebound of spring 1 13 can vibrate the primary screen plate 14. During the intermittent impact of rectangular frame 2 6 on the secondary screen plate 17, under the action of spring 2 16, the contraction and rebound of spring 2 16 can vibrate the secondary screen plate 17.

[0027] Reference Figure 1A support block 19 is fixedly connected to the outer wall of the screen box 1, and a base 20 is fixedly connected to the outer wall of the support block 19.

[0028] Specifically, the base 20 can fix the support block 19, and the support block 19 can fix the screen box 1.

[0029] Reference Figure 1 , Figure 3 and Figure 4 A fixing plate 28 is fixedly connected to the inner wall of the base 20, and a rectangular plate 29 is fixedly connected to the inner wall of the base 20. A U-shaped groove 35 is formed on the outer wall of the rectangular plate 29. A receiving box 27 is slidably connected to the upper surface of the base 20. A motor 21 is fixedly connected to the outer wall of the base 20. The output end of the motor 21 is rotatably connected to the inside of the base 20 and fixedly connected to a rotating wheel 22. A belt 25 is provided on the outer wall of the rotating wheel 22, and a rotating wheel 23 is provided on the inner wall of the belt 25. One end of the rotating wheel 23 is rotatably connected to the inner wall of the base 20. A clamping block 24 is fixedly connected to the outer wall of the belt 25. The upper surface is fixedly connected to the lower surface of the receiving box 27; the outer wall of the belt 25 is fixedly connected to the clamping block 26, the outer wall of the clamping block 26 is fixedly connected to the sliding plate 30, the lower surface of the sliding plate 30 is slidably connected to the upper surface of the fixed plate 28, and the lower surface of the sliding plate 30 is slidably connected to the upper surface of the rectangular plate 29; the inside of the sliding plate 30 is slidably connected to the sliding column 31, the top of the sliding column 31 is fixedly connected to the receiving box 23, the lower surface of the receiving box 23 is fixedly connected to the connecting rod 32, the outer wall of the connecting rod 32 is fixedly connected to the round pin 34, and the outer wall of the round pin 34 is slidably connected to the inner wall of the U-shaped groove 35;

[0030] Specifically, the base 20 secures the second motor 21, ensuring its stable operation. The second motor 21 rotates the first wheel 22, which, in turn, rotates the second wheel 23 under the influence of the belt 25. This causes the second wheel 23 to rotate against the inner wall of the base 20. The belt 25 causes the first clamping block 24 and the second clamping block 26 to move in opposite directions. The fixing plate 28 limits the movement of the sliding plate 30. The base 20 guides the movement of the receiving box 33. The U-shaped groove 35 on the outer wall of the rectangular plate 29 is divided into two sections: a flat section and a low section. The connecting rod 32 can be moved up or down by the sliding of the round pin 34 in different sections of the U-shaped groove 35, thereby driving the receiving box 33 to move. During the downward movement of the receiving box 33, the sliding column 31 will slide inside the sliding plate 30. The sliding column 31 can guide and support the movement of the receiving box 33.

[0031] Working principle: When in use, motor 7 is started, causing gear 8 to rotate, which in turn rotates gear 9, which meshes with it. The rotation of gear 9 drives cylinder 18 to rotate inside the vertical plate 2. During the rotation of gears 8 and 9, gear 8 drives sliding column 11 to rotate, and gear 9 drives sliding column 10 to rotate. This causes sliding column 11 to slide on the inner wall of rectangular frame 5, causing rectangular frame 5 to rotate and oscillate back and forth on the outer wall of short column 3. Simultaneously, sliding column 10 slides on the inner wall of rectangular frame 6, causing rectangular frame 6 to rotate and oscillate back and forth on the outer wall of short column 4. Rectangular frame 5 oscillates intermittently during this process. The ground impacts the primary screen plate 14, causing it to vibrate under the action of spring 13. The reciprocating swing of rectangular frame 6 intermittently impacts the secondary screen plate 17, causing it to vibrate under the action of spring 16. This results in the simultaneous vibration of the primary and secondary screen plates 14 and 17, achieving multi-stage screening of coal. This eliminates the need for multiple power systems, reducing equipment procurement costs, installation and maintenance costs, and energy consumption, thus helping coal mining enterprises save energy costs. The final coal product after screening falls into the receiving box 33. Once the receiving box 33 is full, motor 21 is started, and the motor 21 accelerates... Rotating wheel 22 causes the first wheel to rotate, which in turn drives the second wheel 23 to rotate via belt 25. This causes clamping block 24 to move closer to the screen box 1 and slide the receiving box 27 onto the upper surface of the base 20. Simultaneously, clamping block 26 moves the sliding plate 30 away from the screen box 1. When clamping block 26 and sliding plate 30 reach the middle of the base 20, the round pin 34 slides to the lower section of the inner wall of the U-shaped groove 35 on the outer wall of the rectangular plate 29. This causes the round pin 34 to pull the receiving box 33 downwards via connecting rod 32. During the downward movement of the receiving box 33, the material is collected. Box 2 33 will drive the sliding column 31 to move downward and slide inside the sliding plate 30, so that the receiving box 2 33 passes under the receiving box 1 27. As the clamping block 1 24 continues to move, the receiving box 1 27 moves to the bottom of the screen box 1 and begins to receive material. At the same time, the round pin 34 also moves to the horizontal section of the U-shaped groove 35, so that the clamping block 1 24 moves upward and slides on the inner wall of the sliding plate 30, so that the receiving box 2 33 moves upward and resets. At this time, the technicians can process the coal mine final product inside the receiving box 2 33. Repeated operation can achieve the effect of continuous feeding, which can minimize downtime and improve the efficiency of the entire production process.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal mine screening device, comprising a screen box (1), characterized in that: A vertical plate (2) is fixedly connected to the outer wall of the sieve box (1). A motor (7) is fixedly connected to the outer wall of the vertical plate (2). The output end of the motor (7) is rotatably connected to the inside of the vertical plate (2) and a gear (8) is fixedly connected to it. A short column (3) and a short column (4) are fixedly connected to the outer wall of the vertical plate (2). A sliding column (11) is fixedly connected to the inside of the gear (8). A gear (9) is meshed with the tooth end of the gear (8). A sliding column (10) is fixedly connected to the inside of the gear (9). A cylinder (11) is fixedly connected to the inside of the gear (9). 8) The outer wall of the cylinder (18) is rotatably connected to the inside of the vertical plate (2). The outer wall of the short column (3) is rotatably connected to the rectangular frame (5). The outer wall of the sliding column (11) is slidably connected to the inner wall of the rectangular frame (5). The outer wall of the short column (4) is rotatably connected to the rectangular frame (6). The outer wall of the sliding column (10) is slidably connected to the inner wall of the rectangular frame (6). The outer wall of the rectangular frame (5) is slidably connected to the inner wall of the sieve box (1). The outer wall of the rectangular frame (6) is slidably connected to the inner wall of the sieve box (1). The inner wall of the sieve box (1) is provided with a screening component.

2. The coal mine screening equipment according to claim 1, characterized in that: The screening assembly includes a first fixed block (12) and a second fixed block (15). The outer wall of the first fixed block (12) is fixedly connected to the inner wall of the sieve box (1). The outer wall of the second fixed block (15) is fixedly connected to the inner wall of the sieve box (1). One end of a first spring (13) is fixedly connected to the lower surface of the first fixed block (12). The other end of the first spring (13) is fixedly connected to a primary sieve plate (14). The outer wall of a first rectangular frame (5) is connected to the lower surface of the primary sieve plate (14). One end of a second spring (16) is fixedly connected to the upper surface of the second fixed block (15). The other end of the second spring (16) is fixedly connected to a secondary sieve plate (17). The outer wall of a second rectangular frame (6) is connected to the upper surface of the secondary sieve plate (17).

3. The coal mine screening equipment according to claim 1, characterized in that: The outer wall of the sieve box (1) is fixedly connected to a support block (19), and the outer wall of the support block (19) is fixedly connected to a base (20).

4. The coal mine screening equipment according to claim 3, characterized in that: The inner wall of the base (20) is fixedly connected to a second fixing plate (28), the inner wall of the base (20) is fixedly connected to a rectangular plate (29), the outer wall of the rectangular plate (29) is provided with a U-shaped groove (35), and the upper surface of the base (20) is slidably connected to a first receiving box (27).

5. A coal mine screening device according to claim 3, characterized in that: The outer wall of the base (20) is fixedly connected to a motor (21). The output end of the motor (21) is rotatably connected to the inside of the base (20) and fixedly connected to a wheel (22). The outer wall of the wheel (22) is provided with a belt (25). The inner wall of the belt (25) is provided with a wheel (23). One end of the wheel (23) is rotatably connected to the inner wall of the base (20).

6. A coal mine screening device according to claim 5, characterized in that: The outer wall of the belt (25) is fixedly connected to a clamping block (24), and the upper surface of the clamping block (24) is fixedly connected to the lower surface of the receiving box (27).

7. A coal mine screening device according to claim 5, characterized in that: The outer wall of the belt (25) is fixedly connected to a clamping block two (26), and the outer wall of the clamping block two (26) is fixedly connected to a sliding plate (30). The lower surface of the sliding plate (30) is slidably connected to the upper surface of the fixed plate two (28), and the lower surface of the sliding plate (30) is slidably connected to the upper surface of the rectangular plate (29).

8. A coal mine screening device according to claim 7, characterized in that: The sliding plate (30) is slidably connected to a sliding column (31), and a receiving box (33) is fixedly connected to the top of the sliding column (31). A connecting rod (32) is fixedly connected to the lower surface of the receiving box (33), and a round pin (34) is fixedly connected to the outer wall of the connecting rod (32). The outer wall of the round pin (34) is slidably connected to the inner wall of the U-shaped groove (35).

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