Underground coal mining device for coal mine

Abstract

The utility model discloses an underground coal mining device for a coal mine, which belongs to the technical field of coal mining and comprises a base, a second sliding plate is slidably mounted at the top of the base, a fixing column is fixedly mounted at the top of the second sliding plate, and a fixing block is fixedly mounted at the top of the fixing column. A cutting roller is rotatably installed at one end of the fixing block, two auxiliary blocks are fixedly installed at each of the two ends of the base, and a first supporting plate is rotatably installed between every two auxiliary blocks, so that in the coal mining process, the device can be stabilized, the angle of the first supporting plate is adjusted by rotating the first supporting plate and the second supporting plate, and the coal mining efficiency is improved. A second supporting plate is flatly placed on the ground, then a plug pin is taken out, the plug pin penetrates through the interior of the second supporting plate to be inserted into the ground, then a lead screw is rotated, three nuts in the plug pin move downwards, and during moving, a conical protruding block is pushed out of a telescopic groove and extends into the ground to further fix the device, and the shaking amplitude of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, and more specifically, to a coal mining device for underground coal mines. Background Technique

[0002] Coal is a non-renewable resource and a solid combustible organic rock, which is transformed from buried asphalt by geological action. Commonly known as coal, it is a very important energy source and also an important raw material for the metallurgical and chemical industries. When coal mines are mined, corresponding coal mining devices will be used.

[0003] At present, during the use of an existing coal mining device for underground coal mines, due to the uneven terrain inside the coal mine and the lack of stable support for the coal mining device, the coal mining device is prone to large-amplitude shaking during use, affecting the coal mining efficiency. Content of the Utility Model

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a coal mining device for underground coal mines, which can stabilize the device during coal mining. By rotating the first support plate and the second support plate, the angle of the first support plate is adjusted, and the second support plate is laid flat on the ground. Then, the bolt is taken out and inserted into the ground through the inside of the second support plate. After that, the screw rod is rotated, so that the three nuts inside the bolt move downward. During the movement, the conical protrusions will be pushed out of the telescopic grooves and extend into the ground to further fix the device, reducing the amplitude of the device shaking.

[0006] 2. Technical Solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A coal mining device for underground coal mines, comprising a base. A second sliding plate is slidably mounted on the top of the base. A fixed column is fixedly mounted on the top of the second sliding plate. A fixed block is fixedly mounted on the top of the fixed column. A cutting drum is rotatably mounted at one end of the fixed block. Two auxiliary blocks are fixedly mounted at both ends of the base. A first support plate is rotatably mounted between every two of the auxiliary blocks. A second support plate is rotatably mounted at one end of each of the two first support plates. A pin is provided at the central position of each of the two second support plates. A storage groove is formed in the top of the base. A lead screw is rotatably mounted inside the pin. Three nuts are slidably mounted inside the pin. The three nuts are threadedly connected to the lead screw. Three expansion slots are formed on each side of the pin. Two elastic baffles are fixedly mounted at one end of each of the six expansion slots. A tapered convex block is slidably mounted inside each of the six expansion slots. Connecting rods are rotatably mounted on both sides of each of the three nuts. One end of each of the six connecting rods is rotatably connected to one end of each of the six tapered convex blocks. The lead screw is composed of multiple reciprocating lead screws.

[0009] Further, a first sliding groove is formed in the bottom of the base. A first sliding plate is slidably mounted inside the first sliding groove. Four rollers are rotatably mounted at the bottom of the first sliding plate. A first threaded rod is rotatably mounted inside the first sliding groove. The first sliding plate is threadedly connected to the first threaded rod. A first motor is fixedly mounted inside the base. The output end of the first motor is fixedly connected to one end of the first threaded rod.

[0010] Further, a fixing plate is fixedly mounted on the top of the base. A second sliding groove is formed in the fixing plate. A second threaded rod is rotatably mounted inside the second sliding groove. The second sliding groove is slidably connected to the second sliding plate. The second sliding plate is threadedly connected to the second threaded rod. A third motor is fixedly mounted at one end of the fixing plate. The output end of the third motor is fixedly connected to one end of the second threaded rod.

[0011] Further, a hydraulic rod is fixedly mounted inside the fixed column. The telescopic end of the hydraulic rod is fixedly connected to the bottom of the fixed block.

[0012] Further, a third sliding groove is formed in the fixed block. A third sliding plate is slidably mounted inside the third sliding groove. A first spring is fixedly mounted inside the third sliding groove. One end of the first spring is fixedly connected to one end of the third sliding plate.

[0013] Furthermore, a fourth sliding groove is opened inside one end of the cutting drum, a second spring is fixedly installed inside the fourth sliding groove, a connecting column is fixedly installed at one end of the second spring, the connecting column is slidingly connected to the fourth sliding groove, one end of the connecting column is square, a second motor is fixedly installed inside the cutting drum, and the output end of the second motor is fixedly connected to the other end of the connecting column.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] By rotating the first support plate and the second support plate, adjusting the angle of the first support plate, placing the second support plate flat on the ground, taking out the latch, inserting the latch through the inside of the second support plate into the ground, and rotating the screw rod to move the three nuts inside the latch downward. During the movement, the conical protrusion will be pushed out of the telescopic groove and extend into the ground to further fix the device and reduce the amplitude of the device shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in FIG.

[0020] Figure 4 It is a side structural schematic diagram of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the latch of the utility model;

[0022] Figure 6 For the utility model Figure 5 Schematic diagram of the structure at point B in the figure.

[0023] Description of the numbers in the figure:

[0024] 1. Base; 2. First sliding groove; 3. First sliding plate; 4. First threaded rod; 5. Roller; 6. First motor; 7. Fixed plate; 8. Second sliding groove; 9. Second threaded rod; 10. Fixed column; 11. Hydraulic rod; 12. Fixed block; 13. Cutting drum; 14. Second motor; 15. Third sliding groove; 16. First spring; 17. Connecting column; 18. Third sliding plate; 19. Fourth sliding groove; 20. Second spring; 21. Storage groove; 22. Auxiliary block; 23. First support plate; 24. Second support plate; 25. Bolt; 26. Third motor; 27. Second sliding plate; 28. Lead screw; 29. Nut; 30. Connecting rod; 31. Conical protrusion; 32. Telescopic groove; 33. Elastic baffle. Detailed implementation manner

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "sleeved / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] Please refer to Figures 1-6, a coal mining device underground in a coal mine, comprising a base 1. A second sliding plate 27 is slidably mounted on the top of the base 1. A fixing column 10 is fixedly mounted on the top of the second sliding plate 27. A fixing block 12 is fixedly mounted on the top of the fixing column 10. A cutting drum 13 is rotatably mounted at one end of the fixing block 12. Two auxiliary blocks 22 are fixedly mounted at both ends of the base 1. A first support plate 23 is rotatably mounted between every two auxiliary blocks 22. A second support plate 24 is rotatably mounted at one end of each of the two first support plates 23. A plug 25 is provided at the central position of each of the two second support plates 24. A storage groove 21 is formed on the top of the base 1. A lead screw 28 is rotatably mounted inside the plug 25. Three nuts 29 are slidably mounted inside the plug 25. The three nuts 29 are threadedly connected to the lead screw 28. Three expansion slots 32 are formed on both sides of the plug 25. Two elastic baffles 33 are fixedly mounted at one end of each of the six expansion slots 32. A tapered convex block 31 is slidably mounted inside each of the six expansion slots 32. Connecting rods 30 are rotatably mounted on both sides of the three nuts 29. One end of each of the six connecting rods 30 is rotatably connected to one end of each of the six tapered convex blocks 31. The lead screw 28 is composed of multiple reciprocating lead screws. Before starting the device, by rotating the first support plate 23 and the second support plate 24, the angle of the first support plate 23 is adjusted, and the second support plate 24 is laid flat on the ground. Then, take out the plug 25, insert the plug 25 through the inside of the second support plate 24 and into the ground, and then rotate the lead screw 28 to make the three nuts 29 inside the plug 25 move downward. When moving, the tapered convex blocks 31 will be pushed out of the expansion slots 32 and extend into the ground to further fix the device, reduce the amplitude of the device's shaking, and stabilize the device.

[0029] A first sliding groove 2 is formed at the bottom of the base 1. A first sliding plate 3 is slidably mounted inside the first sliding groove 2. Four rollers 5 are rotatably mounted at the bottom of the first sliding plate 3. A first threaded rod 4 is rotatably mounted inside the first sliding groove 2. The first sliding plate 3 is threadedly connected to the first threaded rod 4. A first motor 6 is fixedly mounted inside the base 1. The output end of the first motor 6 is fixedly connected to one end of the first threaded rod 4. Start the first motor 6 to make the first threaded rod 4 rotate and drive the first sliding plate 3 to move upward, retracting the rollers 5 into the first sliding groove 2 to prevent the rollers 5 from being damaged due to the entire weight of the device being borne by the rollers 5.

[0030] A fixing plate 7 is fixedly mounted on the top of the base 1. A second sliding groove 8 is formed inside the fixing plate 7. A second threaded rod 9 is rotatably mounted inside the second sliding groove 8. The second sliding groove 8 is slidably connected to the second sliding plate 27. The second sliding plate 27 is threadedly connected to the second threaded rod 9. A third motor 26 is fixedly mounted at one end of the fixing plate 7. The output end of the third motor 26 is fixedly connected to one end of the second threaded rod 9. Start the third motor 26 to make the second threaded rod 9 rotate, driving the second sliding plate 27 and the cutting drum 13 to move left and right.

[0031] Inside the fixed column 10, a hydraulic rod 11 is fixedly installed. The telescopic end of the hydraulic rod 11 is fixedly connected to the bottom of the fixed block 12. By starting the hydraulic rod 11, the cutting drum 13 can move up and down, increasing the flexibility of use.

[0032] A third sliding groove 15 is formed inside the fixed block 12. A third sliding plate 18 is slidably installed inside the third sliding groove 15. A first spring 16 is fixedly installed inside the third sliding groove 15. One end of the first spring 16 is fixedly connected to one end of the third sliding plate 18. During the coal mining process, a fourth sliding groove 19 is formed inside one end of the cutting drum 13. A second spring 20 is fixedly installed inside the fourth sliding groove 19. One end of the second spring 20 is fixedly installed with a connecting column 17. The connecting column 17 is slidably connected to the fourth sliding groove 19. One end of the connecting column 17 is square. A second motor 14 is fixedly installed inside the cutting drum 13. The output end of the second motor 14 is fixedly connected to the other end of the connecting column 17. By starting the second motor 14, the cutting drum 13 rotates to cut and break the coal seam on the inner wall of the coal mine for coal mining. By providing the first spring 16 and the second spring 20, the impact force during the use of the cutting drum 13 can be buffered to protect the device.

[0033] Working principle:

[0034] During use, start the first motor 6 to make the first threaded rod 4 rotate and drive the first sliding plate 3 to move upward, retracting the roller 5 into the first sliding groove 2. Rotate the first support plate 23 and the second support plate 24 to adjust the angle of the first support plate 23, and lay the second support plate 24 flat on the ground. Then take out the bolt 25, insert the bolt 25 through the inside of the second support plate 24 and into the ground, and then rotate the screw rod 28 to make the three nuts 29 inside the bolt 25 move downward. When moving, the conical convex block 31 will be pushed out of the telescopic groove 32 and extend into the ground to further fix the device. Start the third motor 26 to make the second threaded rod 9 rotate, driving the second sliding plate 27 to move left and right. Start the hydraulic rod 11 to make the fixed block 12 and the cutting drum 13 move upward, increasing the flexibility of the device. When the cutting drum 13 rotates for coal mining, the first spring 16 and the second spring 20 can buffer the cutting drum 13 to reduce the impact force.

[0035] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improved concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A coal mining device underground in a coal mine, including a base (1), characterized in that: A second sliding plate (27) is slidably mounted on the top of the base (1). A fixing column (10) is fixedly mounted on the top of the second sliding plate (27). A fixing block (12) is fixedly mounted on the top of the fixing column (10). A cutting roller (13) is rotatably mounted at one end of the fixing block (12). Two auxiliary blocks (22) are fixedly mounted at both ends of the base (1). A first support plate (23) is rotatably mounted between every two of the auxiliary blocks (22). A second support plate (24) is rotatably mounted at one end of each of the two first support plates (23). A pin (25) is arranged at the central position of each of the two second support plates (24). A storage groove (21) is formed in the top of the base (1). A lead screw (28) is rotatably mounted inside the pin (25). Three nuts (29) are slidably mounted inside the pin (25). The three nuts (29) are in threaded connection with the lead screw (28). Three expansion slots (32) are formed on both sides of the pin (25). Two elastic baffles (33) are fixedly mounted at one end of each of the six expansion slots (32). A tapered convex block (31) is slidably mounted inside each of the six expansion slots (32). Connecting rods (30) are rotatably mounted on both sides of each of the three nuts (29). One end of each of the six connecting rods (30) is rotatably connected to one end of each of the six tapered convex blocks (31). The lead screw (28) is composed of multiple sections of reciprocating lead screws.

2. The coal mining device in the coal mine according to claim 1, wherein: A first sliding groove (2) is formed in the bottom of the base (1). A first sliding plate (3) is slidably mounted inside the first sliding groove (2). Four rollers (5) are rotatably mounted at the bottom of the first sliding plate (3). A first threaded rod (4) is rotatably mounted inside the first sliding groove (2). The first sliding plate (3) is in threaded connection with the first threaded rod (4). A first motor (6) is fixedly mounted inside the base (1). The output end of the first motor (6) is fixedly connected to one end of the first threaded rod (4).

3. A coal mining device for underground coal mines according to claim 1, characterized in that: A fixing plate (7) is fixedly mounted on the top of the base (1). A second sliding groove (8) is formed in the fixing plate (7). A second threaded rod (9) is rotatably mounted inside the second sliding groove (8). The second sliding groove (8) is slidably connected to the second sliding plate (27). The second sliding plate (27) is in threaded connection with the second threaded rod (9). A third motor (26) is fixedly mounted at one end of the fixing plate (7). The output end of the third motor (26) is fixedly connected to one end of the second threaded rod (9).

4. A coal mining device for underground coal mines according to claim 1, characterized in that: A hydraulic rod (11) is fixedly mounted inside the fixing column (10). The telescopic end of the hydraulic rod (11) is fixedly connected to the bottom of the fixing block (12).

5. The coal mining device in the coal mine according to claim 1, characterized in that: A third sliding groove (15) is formed inside the fixed block (12). A third sliding plate (18) is slidably installed inside the third sliding groove (15). A first spring (16) is fixedly installed inside the third sliding groove (15). One end of the first spring (16) is fixedly connected to one end of the third sliding plate (18).

6. A coal mining device for underground coal mines according to claim 1, characterized in that: A fourth sliding groove (19) is formed inside one end of the cutting roller (13). A second spring (20) is fixedly installed inside the fourth sliding groove (19). One end of the second spring (20) is fixedly installed with a connecting column (17). The connecting column (17) is slidably connected to the fourth sliding groove (19). One end of the connecting column (17) is square. A second motor (14) is fixedly installed inside the cutting roller (13). The output end of the second motor (14) is fixedly connected to the other end of the connecting column (17).

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