A drill bit structure and a coal mine tunneling machine

Abstract

This utility model relates to the field of coal mining technology and discloses a drill bit structure and a coal mine tunneling machine, including a working component. The working component is used for protective treatment during coal mine excavation. The working component includes a drill bit body, a movable column, an installation ring, a first extraction pump, and a second extraction pump. The movable column has a conveying groove and an extraction hole. The drill bit body is inserted into the movable column, and the installation ring is rotatably connected to the movable column. The first extraction pump and the second extraction pump are both connected to the installation ring through pipes. The movable column is fixedly connected to the output end of the tunneling machine. The upper middle part of the installation ring is rotatably connected to the movable ring, and a connecting ring is fixedly connected to the inner wall of the movable ring. There is a cavity between the connecting ring and the movable ring and they are connected. Through the cooperation between the internal components of the working component, water or gas can be extracted in time during operation to avoid gas leaks, which are usually only discovered when the concentration accumulates to a level sufficient to cause personnel hypoxia and suffocation, which can easily lead to serious personal injury accidents.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology, specifically, it relates to a drill bit structure and a coal mine tunneling machine. Background Technology

[0002] Coal mines refer to places rich in coal resources. They are generally divided into underground coal mines and open-pit coal mines. Before mining, coal mine drilling teams will conduct a survey of the geography near the coal mine to determine the coal reserves. Grouting machinery mainly includes drilling rigs, drilling tools, grouting pumps, mixers, grouting pipeline assemblies, grout stop plugs, and mixers. Among them, drilling rigs and drilling tools are hole-forming equipment, while other equipment and tools such as grouting pumps and mixers are used to prepare and transport grout.

[0003] A document with publication number (CN111058766A) discloses a down-drilling rig with azimuth adjustment function, including a traveling mechanism, a power output device, a clamping mechanism, a support and fixing mechanism, an operation console, a guide rail assembly, an angle adjustment mechanism, and a slewing mechanism. The slewing mechanism is located on top of the traveling mechanism and is equipped with the support and fixing mechanism, the angle adjustment mechanism, and the guide rail assembly for driving the power output device. The power output device moves along the direction of the guide rail assembly, which is located directly above the angle adjustment mechanism. The device adjusts the pitch angle of the guide rail assembly through the angle adjustment mechanism and the azimuth angle of the guide rail assembly through the slewing mechanism. This eliminates the need for manual adjustment of the guide rail direction to achieve down-drilling, simplifying the adjustment method. In addition to azimuth adjustment, it also facilitates drilling in three different directions.

[0004] The current state of coal mining technology is as follows: when excavating a mine shaft, if gas is exposed in the coal seam, it is difficult for workers to detect the leak in time because gas is colorless, odorless, less dense than air, insoluble in water, does not support combustion, and does not support breathing. Gas leaks are usually only discovered when the concentration accumulates to a level sufficient to cause oxygen deficiency and suffocation, which can easily lead to serious personal injury accidents.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To address the technical issues related to emissions during mining, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A drill bit structure includes a working component for protective treatment during coal mine excavation. The working component includes a drill bit body, a movable column, a mounting ring, a first extraction pump, and a second extraction pump. The movable column has a conveying groove and an extraction hole. The drill bit body is inserted into the movable column, and the mounting ring is rotatably connected to the movable column. The first and second extraction pumps are both connected to the mounting ring via pipes. The movable column is fixedly connected to the output end of a tunneling machine.

[0008] In a preferred embodiment of this utility model, a movable ring is rotatably connected to the upper center of the mounting ring, and a connecting ring is fixedly connected to the inner wall of the movable ring. There is a cavity between the connecting ring and the movable ring, and they are in communication.

[0009] In a preferred embodiment of this utility model, the connecting ring has a connecting hole, and the connecting ring and the movable column are connected by fasteners. The conveying groove on the movable column corresponds to the connecting hole on the connecting ring, and the corresponding positions are connected by a sealing gasket.

[0010] In a preferred embodiment of this utility model, conveying pipes are symmetrically arranged on the movable ring, each conveying pipe is fixedly connected to the movable ring, and the corresponding conveying pipes are respectively connected to a first extraction pump and a second extraction pump.

[0011] In a preferred embodiment of the present invention, a conveying blade is arranged around the cavity between the movable ring and the mounting ring, and each conveying blade is fixedly connected to the wall of the movable ring.

[0012] In a preferred embodiment of this utility model, a guide block is fixedly connected to the wall of the movable column. The guide block is spiral in shape and has grinding balls arranged in an array on it. Each grinding ball is fixedly connected to the guide block.

[0013] In a preferred embodiment of this utility model, a connecting rod is fixedly connected to the drill bit body, the connecting rod passes through the movable column, and the connecting rod and the movable column are fixedly connected, with a gap between the drill bit body and the movable column.

[0014] A coal mine tunneling machine includes a main body, the output end of which is fixedly connected to a movable column, and a first extraction pump, a second extraction pump, and an mounting ring are all fixedly connected to the power output device of the main body. All of the above-mentioned drill bit structures are provided on the main body.

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

[0016] 1. This drill bit structure and coal mine tunneling machine, through the cooperation between the internal components of the working components, can extract water or gas in a timely manner during operation, avoiding gas leaks that are usually only discovered when the concentration accumulates to a level sufficient to cause personnel to lack oxygen and suffocate, which can easily lead to serious personal injury accidents.

[0017] 2. This drill bit structure and coal mine tunneling machine, after the drill bit body and moving column are damaged due to long-term operation, the moving column and connecting ring are separated, and the moving column is removed from the device for replacement of the drill bit body and moving column.

[0018] 3. In this drill bit structure and coal mine tunneling machine, the rotating movable ring drives the conveying blade, which generates a stirring force during use. This provides a rotational stirring force to the water and gas drawn into the space between the movable ring and the mounting ring, thereby increasing the flow rate of the water and gas and improving the extraction rate of the first and second extraction pumps.

[0019] 4. This drill bit structure and coal mine tunneling machine has a movable column that drives the guide block to contact the coal mine. The minerals and soil in the coal mine are discharged outward through the threaded structure. The grinding balls, while rotating, squeeze and crush the minerals and soil in the coal mine, thus avoiding the impact of large minerals on the discharge operation during tunneling.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the movable column structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure between the mounting ring and the movable ring of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure between the mounting ring and the extraction pump of this utility model;

[0026] Figure 5 This is a schematic diagram showing the relationship between the connecting ring and the movable ring of this utility model;

[0027] Figure 6 This is a three-dimensional schematic diagram of the main body of the coal mine tunneling machine of this utility model.

[0028] In the diagram: 1. Main body of the coal mine tunneling machine; 2. Drill bit body; 21. Connecting rod; 3. Movable column; 31. Guide block; 32. Connecting ring; 33. Movable ring; 34. Conveying trough; 35. Connecting hole; 36. Conveying blade; 4. First extraction pump; 41. Second extraction pump; 42. Conveying pipe; 5. Mounting ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0030] Please see Figure 1-5 A drill bit structure includes a working assembly for protective treatment during coal mine excavation. The working assembly includes a drill bit body 2, a movable column 3, a mounting ring 5, a first extraction pump 4, and a second extraction pump 41. The movable column 3 has a conveying groove 34 and an extraction hole. The drill bit body 2 is inserted into the movable column 3, and the mounting ring 5 is rotatably connected to the movable column 3. The first extraction pump 4 and the second extraction pump 41 are both connected to the mounting ring 5 via pipes. The movable column 3 is fixedly connected to the output end of a tunneling machine. The output end of the coal mine tunneling machine body 1 drives the movable column 3 to rotate, which in turn drives the drill bit body 2 to rotate. The movable column 3 and the drill bit body 2 are used for tunneling in the coal mine. In this optimized scheme, the first extraction pump 4 and the second extraction pump 41 start working. The first extraction pump 4 and the second extraction pump 41 use the conveying pipe 42 to pump the force into the installation ring 5, the movable ring 33 and the connecting hole 35. The force is then sent into the conveying trough 34 and the extraction hole on the movable column 3 to extract the water or gas in the coal seam to a suitable collection device. Water or gas is extracted in time during operation to avoid gas leaks. Gas leaks are usually only discovered when the concentration accumulates to a level that can cause oxygen deficiency and suffocation, which can easily lead to serious personal injury accidents.

[0031] The mounting ring 5 has a movable ring 33 rotatably connected to its upper center. A connecting ring 32 is fixedly connected to the inner wall of the movable ring 33. A cavity exists between the connecting ring 32 and the movable ring 33, and they communicate. A connecting hole 35 is provided on the connecting ring 32. The connecting ring 32 is connected to the movable column 3 by fasteners. The conveying groove 34 on the movable column 3 corresponds to the connecting hole 35 on the connecting ring 32, and the corresponding positions are connected by a sealing gasket. Conveying pipes 42 are symmetrically arranged on the movable ring 33. Each conveying pipe 42 is fixedly connected to the movable ring 33, and the corresponding conveying pipes 42 are respectively connected to a first extraction pump 4 and a second extraction pump 41. A connecting rod 21 is fixedly connected to the drill bit body 2, passing through the movable column 3. The connecting rod 21 is fixedly connected to the movable column 3. There is a gap between the columns 3. During the tunneling process of the drill bit body 2 and the movable column 3, if water or gas appears in the coal seam, the water or coal seam will enter the conveying channel 34 and the extraction hole on the movable column 3 through the gap between the drill bit body 2 and the movable column 3. In the use of this optimized scheme, the first extraction pump 4 and the second extraction pump 41 start working, and the first extraction pump 4 and the second extraction pump 41 send the extraction force into the installation ring 5, the movable ring 33 and the connecting hole 35 through the conveying pipe 42, and send the extraction force into the conveying channel 34 and the extraction hole on the movable column 3 to extract the water or gas in the coal seam to a suitable collection device. The water or gas is extracted in time during the operation to avoid gas leakage. Gas leakage is usually only discovered when the concentration accumulates to a level that is sufficient to cause personnel to lack oxygen and suffocate, which can easily lead to serious personal injury accidents.

[0032] A filter screen is installed on the contact surface between the conveying trough 34 and the extraction hole and the coal mine. During rotation, the minerals and soil in the coal mine layer are always driven upward, and the minerals and soil in the coal mine are separated from the wall of the movable column 3 during rotation, so as to prevent the conveying trough 34 and the extraction hole from being blocked.

[0033] After the drill bit body 2 and the movable column 3 are damaged due to long-term operation, the movable column 3 and the connecting ring 32 are separated, and the movable column 3 is removed from the device for replacement of the drill bit body 2 and the movable column 3.

[0034] The cavity between the movable ring 33 and the mounting ring 5 is surrounded by conveying blades 36, and each conveying blade 36 is fixedly connected to the wall of the movable ring 33. When the output end of the main body 1 of the coal mine tunneling machine drives the movable column 3 to rotate, the movable column 3 drives the connecting ring 32 and the movable ring 33 to rotate. When the movable ring 33 rotates, it drives the conveying blades 36. The conveying blades 36 generate a stirring force during use, providing a rotational stirring force for the water and gas drawn into the space between the movable ring 33 and the mounting ring 5, increasing the flow rate of water and gas, and increasing the extraction rate of the first extraction pump 4 and the second extraction pump 41.

[0035] The movable column 3 has a guide block 31 fixedly connected to its wall. The guide block 31 is spiral in shape and has an array of grinding balls arranged on it. Each grinding ball is fixedly connected to the guide block 31. When the output end of the main body 1 of the coal mine tunneling machine drives the movable column 3 to rotate, the movable column 3 drives the guide block 31 to contact the coal mine. The minerals and soil in the coal mine are discharged outward through the spiral shape. The grinding balls, while rotating, squeeze and crush the minerals and soil in the coal mine, avoiding the impact of large minerals on the discharge operation during tunneling.

[0036] A coal mine tunneling machine includes a main body 1. The output end of the main body 1 is fixedly connected to a movable column 3. A first extraction pump 4, a second extraction pump 41, and an mounting ring 5 are all fixedly connected to suitable positions on the power output device of the main body 1. The main body 1 is equipped with all the aforementioned drill bit structures. The output end of the main body 1 drives the movable column 3 to rotate, which in turn drives the drill bit body 2 to rotate. The movable column 3 and the drill bit body 2 then tunnel through the coal mine. In this optimized solution... During use, the first extraction pump 4 and the second extraction pump 41 start working, and the first extraction pump 4 and the second extraction pump 41 use the conveying pipe 42 to send the extracted force into the mounting ring 5, the movable ring 33 and the connecting hole 35, and send the extracted force into the conveying trough 34 and the extraction hole on the movable column 3, so as to extract the water or gas present in the coal seam to a suitable collection device. In the operation, water or gas is extracted in time to avoid gas leakage. Gas leakage is usually only discovered when the concentration accumulates to a level that can cause personnel to lack oxygen and suffocate, which can easily lead to serious personal injury accidents.

[0037] It is worth noting that the main body 1 of the coal mine tunneling machine includes a traveling mechanism, a power output device, a clamping mechanism, a support and fixing mechanism, an operating console, a guide rail assembly, an angle adjustment mechanism, and a slewing mechanism. The slewing mechanism is located on top of the traveling mechanism and includes the support and fixing mechanism, the angle adjustment mechanism, and the guide rail assembly for driving the power output device. The power output device moves along the direction of the guide rail assembly, which is located directly above the angle adjustment mechanism. This invention adjusts the pitch angle of the guide rail assembly through the angle adjustment mechanism and via the slewing mechanism... The azimuth angle of the guide rail assembly is adjusted, thus eliminating the need for manual adjustment of the guide rail direction to achieve downward drilling. The adjustment method is simple, and while having an azimuth angle adjustment function, it can also conveniently achieve drilling in three different directions. Since the main body 1 of the coal mine tunneling machine is existing known technology, it is not labeled in detail in the figure, nor is it described in detail. The main body 1 of the coal mine tunneling machine has been fully disclosed in the existing technology of a downward drilling machine with azimuth angle adjustment function CN111058766A, and will not be described in detail here.

[0038] Working principle: The output end of the main body 1 of the coal mine tunneling machine drives the movable column 3 to rotate, which in turn drives the drill bit body 2 to rotate. The movable column 3 and the drill bit body 2 then tunnel through the coal seam. During tunneling, if water or gas is present in the coal seam, it enters through the gap between the drill bit body 2 and the movable column 3, passing through the conveying trough 34 and the extraction hole on the movable column 3. In this optimized solution, the first extraction pump 4 and the second extraction pump 41 start working. 1. The extracted force is fed into the mounting ring 5, movable ring 33, and connecting hole 35 through the conveying pipe 42, and then into the extraction hole on the conveying trough 34 and movable column 3 to extract water or gas in the coal seam to a suitable collection device. Timely extraction of water or gas during operation prevents gas leaks, which are usually only discovered when the concentration accumulates to a level sufficient to cause oxygen deficiency and suffocation, easily leading to serious personal injury accidents. Filter screens are installed on the contact surfaces between the conveying trough 34 and the extraction hole and the coal seam, ensuring that minerals and soil in the coal seam are constantly filtered during rotation. The upward rotation separates the minerals and soil in the coal mine from the wall of the movable column 3, preventing the conveying trough 34 and extraction hole from being blocked. After prolonged use and damage to the drill bit body 2 and movable column 3, the movable column 3 is separated from the connecting ring 32 and removed from the device for replacement of the drill bit body 2 and movable column 3. The output end of the coal mine tunneling machine body 1 drives the movable column 3 to rotate, which in turn drives the connecting ring 32 and movable ring 33 to rotate. The rotating movable ring 33 drives the conveying blade 36, which generates [something] during use. The stirring force provides a rotating stirring force to the water and gas drawn into the space between the movable ring 33 and the mounting ring 5, increasing the flow rate of water and gas and increasing the extraction rate of the first extraction pump 4 and the second extraction pump 41. As the output end of the main body 1 of the coal mine tunneling machine drives the movable column 3 to rotate, the movable column 3 drives the guide block 31 to contact the coal mine. The minerals and soil in the coal mine are discharged outward through the thread, and the grinding balls, while rotating, squeeze and crush the minerals and soil in the coal mine, avoiding the impact of large minerals on the discharge operation during tunneling.

[0039] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A drill bit structure, characterized by, include: The working component is used for protective treatment during coal mine excavation. The working component includes a drill bit body (2), a movable column (3), an installation ring (5), a first extraction pump (4) and a second extraction pump (41). The movable column (3) is provided with a conveying groove (34) and an extraction hole. The drill bit body (2) is inserted into the movable column (3). The installation ring (5) is rotatably connected to the movable column (3). The first extraction pump (4) and the second extraction pump (41) are connected to the installation ring (5) through pipes. The movable column (3) is fixedly connected to the output end of the tunneling machine.

2. The drill bit structure according to claim 1, characterized in that, The mounting ring (5) is rotatably connected to a movable ring (33) at its upper middle part. A connecting ring (32) is fixedly connected to the inner wall of the movable ring (33). There is a cavity between the connecting ring (32) and the movable ring (33) and they are connected.

3. The drill bit structure according to claim 2, characterized in that, The connecting ring (32) has a connecting hole (35), and the connecting ring (32) and the movable column (3) are connected by fasteners. The conveying groove (34) on the movable column (3) corresponds to the connecting hole (35) on the connecting ring (32), and the corresponding positions are connected by a sealing gasket.

4. The drill bit structure according to claim 2, characterized in that, The movable ring (33) is symmetrically provided with conveying pipes (42), each conveying pipe (42) is fixedly connected to the movable ring (33), and the corresponding conveying pipes (42) are respectively connected to the first extraction pump (4) and the second extraction pump (41).

5. The drill bit structure according to claim 2, characterized in that, A conveying blade (36) is arranged around the cavity between the movable ring (33) and the mounting ring (5), and each conveying blade (36) is fixedly connected to the wall of the movable ring (33).

6. The drill bit structure according to claim 1, characterized in that, A guide block (31) is fixedly connected to the wall of the movable column (3). The guide block (31) is spiral in shape, and grinding balls are arranged in an array on the guide block (31). Each grinding ball is fixedly connected to the guide block (31).

7. The drill bit structure according to claim 1, characterized in that, A connecting rod (21) is fixedly connected to the drill bit body (2). The connecting rod (21) passes through the movable column (3) and is fixedly connected to the movable column (3). There is a gap between the drill bit body (2) and the movable column (3).

8. A coal mine tunneling machine, comprising a main body (1), characterized in that, The output end of the main body (1) of the coal mine tunneling machine is fixedly connected to the movable column (3), and the first extraction pump (4), the second extraction pump (41) and the mounting ring (5) are all fixedly connected to the power output device of the main body (1) of the coal mine tunneling machine. The main body (1) of the coal mine tunneling machine is provided with a drill bit structure as described in any one of claims 1-7.

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