Continuous miner crushing device for coal mining

Abstract

The invention discloses a continuous miner crushing device for coal mining, and relates to the technical field of coal mining, the continuous miner crushing device comprises a connecting plate, the side surface of the connecting plate is symmetrically and movably connected with crushing cylinders, and the connecting plate and the crushing cylinders are jointly provided with a multi-motion crushing assembly; the multi-motion crushing assembly comprises a plurality of control boxes installed on the inner side of the crushing barrel, second gears rotationally connected with the side faces of the control boxes, third rotating rods rotationally connected with the inner sides of the control boxes, rotating barrels installed at the two ends of the third rotating rods, crushing rods symmetrically and rotationally connected with the side faces of the rotating barrels, and first transmission units arranged on the crushing barrels. According to the multi-movement crushing device, the multi-movement crushing assembly is arranged, so that the crushing rod can move in multiple directions while rotating along with the crushing barrel, coal briquettes can be crushed more comprehensively and efficiently through the multi-direction crushing mode, the crushing effect is improved, and compared with single-direction crushing, the crushing efficiency is improved. And coal briquettes with different shapes and hardness can be better treated, and crushing is more thorough.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and in particular to a crushing device for a continuous miner used in coal mining. Background Technology

[0002] The crushing device of a continuous coal miner is a key component, primarily used to break up large coal blocks formed by spalling. This ensures that these large blocks can pass smoothly through the coal passage between the miner and the conveyor, guaranteeing the continuity and efficiency of mining operations. It is widely used in coal mine roadway excavation and shortwall mining. During roadway excavation, the crushing device promptly breaks up large coal blocks formed by spalling, preventing them from blocking the coal passage and ensuring the normal operation of the miner and conveyor. In shortwall mining, the crushing device improves the crushing effect of the coal blocks, facilitating subsequent transportation and processing.

[0003] Conventional continuous miner crushing devices typically allow the crushing rod to move in only one direction, such as simply rotating around the crushing cylinder. This single movement results in a relatively fixed contact angle and force direction between the crushing rod and the coal block. When encountering coal blocks of different shapes (such as irregular lumps or elongated shapes) and hardness (such as coal blocks with uneven hardness distribution), it is impossible to apply force to the coal block from multiple directions, making it difficult to comprehensively crush the coal block. Therefore, a new crushing device for continuous miners used in coal mining is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies where the crushing rod can typically only move in one direction, making it impossible to apply force to the coal block from multiple directions and thus making it difficult to fully crush the coal block. Therefore, this invention proposes a crushing device for continuous mining machines used in coal mining.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A crushing device for a continuous miner used in coal mining includes a connecting plate. Crushing cylinders are symmetrically and movably connected to the sides of the connecting plate. Multiple moving crushing components are jointly arranged on the connecting plate and the crushing cylinders. Each moving crushing component includes multiple control boxes installed inside the crushing cylinders, a second gear rotatably connected to the sides of the control boxes, a third rotating rod rotatably connected to the inside of the control boxes, rotating cylinders installed at both ends of the third rotating rod, crushing rods symmetrically and rotatably connected to the sides of the rotating cylinders, and a first transmission unit, a second transmission unit, and a third transmission unit arranged on the crushing cylinders. The first transmission unit drives the two crushing cylinders to rotate and causes the crushing rods to follow the rotation of the crushing cylinders. The second transmission unit drives the rotating cylinders to rotate and causes the crushing rods to follow the rotation of the rotating cylinders. When the crushing rods rotate, the third transmission unit drives the crushing rods to rotate on their own axis. Circular grooves are symmetrically formed on the outer side of the connecting plate, and a movable plate is symmetrically and slidably connected to the inner side of the connecting plate. A push rod is installed on the side of the movable plate.

[0006] The above technical solution further includes: The connecting plate is rotatably connected to a first rotating rod, and the two crushing cylinders are respectively installed at both ends of the first rotating rod. The connecting plate is symmetrically installed with rings, and the crushing cylinders and the rings are movably connected. When the first rotating rod rotates, it drives the crushing cylinders at both ends to rotate.

[0007] The first transmission unit includes a fourth bevel gear mounted on the outer side of the first rotating rod, a first driving device mounted on the inner side of the connecting plate, a fifth rotating rod mounted on the output end of the first driving device, a fourth bevel gear mounted on the end of the fifth rotating rod near the first rotating rod, the fourth bevel gear meshing with a third bevel gear, and the fifth rotating rod rotating drives the first rotating rod to rotate through the fourth bevel gear and the third bevel gear.

[0008] The first transmission unit also includes multiple telescopic rods installed on the side of the crushing cylinder, and a support frame is installed at the ends of the multiple telescopic rods. Multiple first gears are installed on the outside of the support frame, and the first gears mesh with the second gears. A circular plate is installed at the end of the support frame, and the circular plate is rotatably connected to the crushing cylinder. When the crushing cylinder rotates, it drives the second gear to revolve around the first gear while rotating on its own axis.

[0009] The second transmission unit includes a control box with a second rotating rod rotatably connected to it. A transmission belt is fitted on the outer sides of the second rotating rod and the third rotating rod. Connecting rings are installed at both ends of the third rotating rod. The rotating cylinder is installed on the side of the connecting rings. The second rotating rod is fixedly connected to the second gear. When the second rotating rod rotates, it drives the third rotating rod to rotate through the transmission belt.

[0010] The third transmission unit includes a fourth rotating rod rotatably connected to the inner side of the rotating cylinder. The crushing rod is fixedly connected to the fourth rotating rod. A first bevel gear is installed on the outer side of the fourth rotating rod. A second bevel gear is symmetrically installed on the outer side of the control box. The second bevel gear meshes with the first bevel gear. When the rotating cylinder rotates, the crushing rod can be driven to rotate by the meshing force of the first bevel gear and the second bevel gear.

[0011] A second driving device is installed on the inner side of the connecting plate. A bidirectional threaded rod is installed at the output end of the second driving device. Both movable plates are engaged with the bidirectional threaded rod. The force generated when the bidirectional threaded rod rotates drives the two movable plates to move in opposite directions.

[0012] The size of the circular slot opening is adapted to the size of the push rod, and the end of the push rod is arc-shaped.

[0013] The crushing cylinder is positioned above the movement trajectory of the push rod, which moves through the circular groove to push the crushing cylinder.

[0014] The present invention has the following beneficial effects: 0. In this invention, by setting up a multi-motion crushing component, the crushing rod can move in multiple directions while rotating with the crushing cylinder. The multi-directional crushing method can crush coal blocks more comprehensively and efficiently, improving the crushing effect. Compared with single-directional crushing, it can better handle coal blocks of different shapes and hardness, and the crushing is more thorough.

[0015] 1. In this invention, the two movable plates move in opposite directions, thereby pushing the crushing cylinder to move the crushing rod in real time, which increases the shearing force of the crushing rod on the coal block, enabling the coal block to be crushed more quickly and effectively, and further improving the crushing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first cross-sectional view of the overall side of a crushing device for a continuous miner used in coal mining, as proposed in this invention. Figure 2 This is a schematic diagram of the overall side second sectional view structure in this invention; Figure 3 This is a schematic diagram of the overall upper cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the present invention; Figure 5 This is a schematic diagram of the side cross-sectional structure of the control box in this invention; Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 7 for Figure 2 Enlarged schematic diagram of the structure at point B; Figure 8 for Figure 3 Enlarged schematic diagram of the structure at point C; Figure 9 for Figure 5 Enlarged schematic diagram of the structure at point D.

[0017] In the diagram: 1. Connecting plate; 2. First rotating rod; 3. Crushing cylinder; 4. Telescopic rod; 5. Support frame; 6. First gear; 7. Circular plate; 8. Control box; 9. Second gear; 10. Second rotating rod; 11. Transmission belt; 12. Third rotating rod; 13. Connecting ring; 14. Rotating cylinder; 15. Fourth rotating rod; 16. Crushing rod; 17. First bevel gear; 18. Second bevel gear; 19. Circular ring; 20. Third bevel gear; 21. First drive device; 22. Fifth rotating rod; 23. Fourth bevel gear; 24. Second drive device; 25. Bidirectional threaded rod; 26. Movable plate; 27. Circular groove; 28. Push rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 like Figure 1 - Figure 9 As shown, the present invention proposes a crushing device for a continuous miner used in coal mining, comprising a connecting plate 1, wherein a crushing cylinder 3 is symmetrically and movably connected to the side of the connecting plate 1, and multiple moving crushing components are jointly provided on the connecting plate 1 and the crushing cylinder 3. The multiple moving crushing components include multiple control boxes 8 installed inside the crushing cylinder 3, a second gear 9 rotatably connected to the side of the control box 8, a third rotating rod 12 rotatably connected to the inside of the control box 8, rotating cylinders 14 installed at both ends of the third rotating rod 12, a crushing rod 16 symmetrically and rotatably connected to the side of the rotating cylinder 14, and a first transmission unit, a second transmission unit, and a third transmission unit provided on the crushing cylinder 3. The first transmission unit drives the two crushing cylinders 3 to rotate and drives the crushing rod 16 to rotate with the crushing cylinder 3. The second transmission unit drives the rotating cylinder 14 to rotate and drives the crushing rod 16 to rotate with the rotating cylinder 14. When the crushing rod 16 rotates, it is driven to rotate by the third transmission unit. Circular grooves 27 are symmetrically opened on the outer side of the connecting plate 1, and a movable plate 26 is symmetrically and slidably connected to the inner side of the connecting plate 1. A push rod 28 is installed on the side of the movable plate 26.

[0020] The inner side of the connecting plate 1 is rotatably connected to a first rotating rod 2, and the two crushing cylinders 3 are respectively installed at both ends of the first rotating rod 2. The outer side of the connecting plate 1 is symmetrically equipped with rings 19, and the crushing cylinders 3 and the rings 19 are movably connected. When the first rotating rod 2 rotates, it drives the crushing cylinders 3 at both ends to rotate.

[0021] The first transmission unit includes a fourth bevel gear 23 mounted on the outer side of the first rotating rod 2, a first driving device 21 mounted on the inner side of the connecting plate 1, a fifth rotating rod 22 mounted on the output end of the first driving device 21, and a fourth bevel gear 23 mounted on the end of the fifth rotating rod 22 near the first rotating rod 2. The fourth bevel gear 23 meshes with a third bevel gear 20. When the fifth rotating rod 22 rotates, it drives the first rotating rod 2 to rotate through the fourth bevel gear 23 and the third bevel gear 20.

[0022] The first transmission unit also includes multiple telescopic rods 4 installed on the side of the crushing cylinder 3. The ends of the multiple telescopic rods 4 are jointly installed with a support frame 5. Multiple first gears 6 are installed on the outside of the support frame 5. The first gears 6 mesh with the second gears 9. A circular plate 7 is installed at the end of the support frame. The circular plate 7 is rotatably connected to the crushing cylinder 3. When the crushing cylinder 3 rotates, it drives the second gear 9 to revolve around the first gear 6 while rotating on its own axis.

[0023] The second transmission unit includes a control box 8 with a second rotating rod 10 rotatably connected to it. The outer sides of the second rotating rod 10 and the third rotating rod 12 are jointly fitted with a transmission belt 11. The two ends of the third rotating rod 12 are fitted with connecting rings 13. The rotating cylinder 14 is installed on the side of the connecting rings 13. The second rotating rod 10 is fixedly connected to the second gear 9. When the second rotating rod 10 rotates, it drives the third rotating rod 12 to rotate through the transmission belt 11.

[0024] The third transmission unit includes a fourth rotating rod 15 rotatably connected to the inner side of the rotating cylinder 14. The crushing rod 16 is fixedly connected to the fourth rotating rod 15. A first bevel gear 17 is installed on the outer side of the fourth rotating rod 15. A second bevel gear 18 is symmetrically installed on the outer side of the control box 8. The second bevel gear 18 meshes with the first bevel gear 17. When the rotating cylinder 14 rotates, the crushing rod 16 can be driven to rotate by the meshing force of the first bevel gear 17 and the second bevel gear 18.

[0025] In this embodiment, when crushing is required by the crushing device of the continuous mining machine, the crushing cylinder 3 can be brought into contact with the coal block by engineering equipment. Then, the first drive device 21 is started, which drives the fifth rotating rod 22 to rotate. Since the fourth bevel gear 23 and the third bevel gear 20 are meshed, the rotation of the fifth rotating rod 22 can drive the first rotating rod 2 to rotate through the fourth bevel gear 23 and the third bevel gear 20. The rotation of the first rotating rod 2 drives the crushing cylinders 3 at both ends to rotate. When the crushing cylinders 3 rotate, the crushing rod 16 rotates with the crushing cylinders 3. At the same time, the rotation of the crushing cylinders 3 drives the second gear 9 to rotate with the first gear 6. The outer side revolves around the first gear 6, and the second gear 9 can rotate on its own axis through the meshing force of the second gear 9 and the first gear 6. When the second gear 9 rotates, it drives the third rotating rod 12 to rotate through the second rotating rod 10 and the transmission belt 11. When the third rotating rod 12 rotates, it drives the rotating cylinder 14 to rotate through the connecting ring 13. When the rotating cylinder 14 rotates, it drives the crushing rod 16 to rotate along with the rotating cylinder 14. When the rotating cylinder 14 rotates, it can drive the crushing rod 16 to rotate on its own axis through the meshing force of the first bevel gear 17 and the second bevel gear 18. Therefore, when the crushing operation is carried out by the crushing rod 16 on the outer side of the crushing cylinder 3, the crushing rod 16 can move in multiple directions to carry out the crushing operation.

[0026] Example 2 like Figure 1 - Figure 9 As shown, based on Embodiment 1, a second driving device 24 is installed on the inner side of the connecting plate 1, and a bidirectional threaded rod 25 is installed at the output end of the second driving device 24. Both movable plates 26 are engaged with the bidirectional threaded rod 25. The force generated when the bidirectional threaded rod 25 rotates drives the two movable plates 26 to move in opposite directions.

[0027] The size of the opening of the circular groove 27 is adapted to the size of the push rod 28, and the end of the push rod 28 is arc-shaped.

[0028] The crushing cylinder 3 is positioned on the movement trajectory of the push rod 28. When the push rod 28 moves, it passes through the circular groove 27 to push the crushing cylinder 3.

[0029] In this embodiment, when the crushing cylinder 3 rotates and drives the crushing rod 16 to perform crushing work, the second drive device 24 can be started. The second drive device 24 drives the bidirectional threaded rod 25 to rotate. The force generated by the rotation of the bidirectional threaded rod 25 drives the two movable plates 26 to move in opposite directions. At the same time, it drives the circular groove 27 to pass through the push rod 28 to push the crushing cylinder 3, so that the two crushing cylinders 3 can move in real time during the crushing work, which can increase the shearing force on the coal block. When the crushing cylinder 3 moves, it can drive the first gear 6 and the support frame 5 to move through the circular plate 7. At this time, the telescopic rod 4 is stretched, which can drive the first gear 6 to mesh with the second gear 9 in real time.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing device for a continuous miner used in coal mining, comprising a connecting plate (1), characterized in that, The connecting plate (1) is symmetrically and movably connected to the side of the crushing cylinder (3). The connecting plate (1) and the crushing cylinder (3) are jointly provided with multiple moving crushing components. The multiple moving crushing components include multiple control boxes (8) installed inside the crushing cylinder (3), a second gear (9) rotatably connected to the side of the control box (8), a third rotating rod (12) rotatably connected to the inside of the control box (8), rotating cylinders (14) installed at both ends of the third rotating rod (12), crushing rods (16) symmetrically rotatably connected to the side of the rotating cylinder (14), a first transmission unit and a second transmission unit provided on the crushing cylinder (3). The first transmission unit drives the two crushing cylinders (3) to rotate and drives the crushing rod (16) to follow the crushing cylinder (3) to rotate. The second transmission unit drives the rotating cylinder (14) to rotate and drives the crushing rod (16) to follow the rotating cylinder (14) to rotate. When the crushing rod (16) rotates, it is driven to rotate by the third transmission unit. The outer side of the connecting plate (1) is symmetrically provided with circular grooves (27). The inner side of the connecting plate (1) is symmetrically slidably connected with a movable plate (26). The side of the movable plate (26) is equipped with a push rod (28).

2. The crushing device for a continuous miner used in coal mining according to claim 1, characterized in that, The inner side of the connecting plate (1) is rotatably connected to a first rotating rod (2), and the two crushing cylinders (3) are respectively installed at both ends of the first rotating rod (2). A circular ring (19) is symmetrically installed on the outer side of the connecting plate (1), and the crushing cylinder (3) and the circular ring (19) are movably connected.

3. The crushing device for a continuous miner used in coal mining according to claim 1, characterized in that, The first transmission unit includes a fourth bevel gear (23) mounted on the outer side of the first rotating rod (2), a first driving device (21) mounted on the inner side of the connecting plate (1), a fifth rotating rod (22) mounted on the output end of the first driving device (21), a fourth bevel gear (23) mounted on the end of the fifth rotating rod (22) near the first rotating rod (2), and the fourth bevel gear (23) meshing with the third bevel gear (20).

4. The crushing device for a continuous miner used in coal mining according to claim 3, characterized in that, The first transmission unit also includes multiple telescopic rods (4) installed on the side of the crushing cylinder (3), and a support frame (5) is installed at the ends of the multiple telescopic rods (4). Multiple first gears (6) are installed on the outside of the support frame (5). The first gears (6) mesh with the second gears (9). A circular plate (7) is installed at the end of the support frame. The circular plate (7) is rotatably connected to the crushing cylinder (3).

5. The crushing device for a continuous miner used in coal mining according to claim 4, characterized in that, The second transmission unit includes a control box (8) with a second rotating rod (10) rotatably connected to it. The outer sides of the second rotating rod (10) and the third rotating rod (12) are fitted with a transmission belt (11). The two ends of the third rotating rod (12) are fitted with connecting rings (13). The rotating cylinder (14) is installed on the side of the connecting ring (13). The second rotating rod (10) is fixedly connected to the second gear (9).

6. The crushing device for a continuous miner used in coal mining according to claim 5, characterized in that, The third transmission unit includes a fourth rotating rod (15) rotatably connected to the inner side of the rotating cylinder (14), the crushing rod (16) is fixedly connected to the fourth rotating rod (15), a first bevel gear (17) is installed on the outer side of the fourth rotating rod (15), and a second bevel gear (18) is symmetrically installed on the outer side of the control box (8), and the second bevel gear (18) meshes with the first bevel gear (17).

7. The crushing device for a continuous miner used in coal mining according to claim 1, characterized in that, The inner side of the connecting plate (1) is equipped with a second driving device (24), and the output end of the second driving device (24) is equipped with a bidirectional threaded rod (25). Both of the movable plates (26) are engaged with the bidirectional threaded rod (25).

8. The crushing device for a continuous miner used in coal mining according to claim 1, characterized in that, The size of the opening of the circular groove (27) is adapted to the size of the push rod (28), and the end of the push rod (28) is arc-shaped.

9. A crushing device for a continuous miner used in coal mining according to claim 1, characterized in that, The crushing cylinder (3) is located on the movement trajectory of the push rod (28), and the push rod (28) moves through the circular groove (27) to push the crushing cylinder (3).

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