Coal mine heading machine

Abstract

The invention discloses a coal mine heading machine which comprises a crawler walking mechanism which is arranged at the bottom of the heading machine and used for enabling the whole heading machine to walk inside a roadway. And the conveying mechanism is arranged in the middle of the two crawler walking mechanisms, the tunneling drill bit comprises an adjusting drill plate which is distributed in an arc shape at equal angles, mining drill bits are evenly distributed on the outer wall of the adjusting drill plate, and the tunneling drill bit can conduct angle change work under the action of the steering mechanism. According to the coal mine heading machine, the top end of the atomization dust falling mechanism is connected with the external atomization spray head and the internal atomization spray head respectively, and the atomization dust falling mechanism and the internal atomization spray head are installed inside and outside the heading drill bit respectively, so that when the heading drill bit carries out coal mine heading, atomization dust falling work can be carried out inside and outside a mined coal mine; therefore, the large-range dust falling effect is achieved, and it is guaranteed that the absorbing amount of coal mine dust can be reduced when a driver operates the whole heading machine.

Description

Technical Field

[0001] The present invention relates to the technical field related to coal mine boring machines, in particular to a coal mine boring machine. Background Art

[0002] Coal mine roadheader is a kind of engineering equipment specially used for coal mine tunnel excavation. It can improve excavation efficiency, reduce labor intensity, and improve operation safety. It is a combined unit integrating cutting, loading and transportation, self-propelled and spray dust removal functions. This kind of roadheader plays an important role in coal mine tunnel excavation, especially in improving excavation speed and efficiency. The existing application number on the market is 202122099169.5. A tunnel boring machine disclosed in a cantilever tunnel boring machine has a frame and a breaking mechanism installed at the front end of the frame, a shoveling mechanism and a conveyor belt mechanism arranged on the frame. The shoveling mechanism includes a base and a bucket arranged on the base. The front end of the frame is fixedly connected with two oppositely arranged side plates, and the two side plates are respectively located on both sides of the feeding end of the conveyor belt mechanism. The base is slidably connected between the two side plates. A power part that drives the base to move is arranged on the frame, and a material guide mechanism is arranged between the base and the feeding end of the conveyor belt mechanism. This application has the effect of improving the cleaning efficiency of materials such as gravel and mud; When the above-mentioned tunnel boring machine is excavating, the size of its drill bit is fixed. Therefore, when the drill bit is inside the tunnel for coal mining, the size of the inside of the tunnel is generally not fixed. Therefore, when excavating, the drill bit of fixed size cannot adapt well to the size of the inside of the tunnel, resulting in incomplete mining and uneven mining surface during excavation. At the same time, when coal mining is carried out, the atomization dust reduction mechanism installed inside the tunnel boring machine can only perform dust reduction work on the outside of the drill bit, and only performs dust reduction on the outside, which often results in incomplete dust reduction. Summary of the invention

[0003] The object of the present invention is to provide a coal mine boring machine to solve the problem raised in the above background technology that the coal mine boring machines currently on the market are generally not fixed in size inside the tunnel when working. Therefore, when boring, the drill bit of fixed size cannot adapt well to the size inside the tunnel, resulting in incomplete mining and uneven mining surface during excavation. At the same time, when excavating, the atomizing dust reduction mechanism arranged inside the boring machine can only perform dust reduction work on the outside of the drill bit, and only performs dust reduction on the outside, which often leads to the problem of incomplete dust reduction.

[0004] To achieve the above object, the present invention provides the following technical solutions: A coal mine roadheader, comprising a crawler walking mechanism, which is arranged at the bottom of the roadheader and is used for the entire roadheader to travel inside the tunnel; The conveying mechanism is arranged in the middle of the two crawler walking mechanisms and is used for conveying coal; The frame body is arranged above the crawler walking mechanism and the transmission mechanism; Also includes; The excavation drill bit is connected to the outer wall of the frame body through a mechanical cantilever and is used for excavation and mining in coal mines; The bucket mechanism is arranged at the top of the conveying mechanism and is used to shovel the coal mined by the boring bit, so that the coal reaches the top of the conveying mechanism for conveying, and then is transported out by the transport mechanism outside the boring machine; Atomizing dust reduction mechanism, which is arranged above the frame body and is arranged at the center and outside of the boring drill bit, for performing internal and external atomizing dust reduction work; The tunneling drill bit includes an adjustable drill plate with arc-shaped equal-angle distribution, and mining drill bits are evenly distributed on the outer wall of the adjustable drill plate. The tunneling drill bit can change its angle under the action of a steering mechanism to achieve the effect of flexible adjustment according to the internal environment of the tunnel.

[0005] Preferably, a driver's seat is provided at the middle position of the top end of the frame body, and a slope is provided on the outer side of the driver's seat for the driver to enter and work.

[0006] Preferably, the atomization dust reduction mechanism is symmetrically arranged in two groups above the frame body, and includes a storage water tank, a connecting water pipe and a pump body, the storage water tank is engaged with the top of the frame body, and the top of the frame body is provided with a connecting water pipe, a pump body is arranged in the middle of the connecting water pipe, and the pump body is installed outside the mechanical cantilever; The top ends of the connecting water pipes on the two atomizing dust suppression mechanisms are respectively connected to an external atomizing nozzle and an internal atomizing nozzle.

[0007] Preferably, the bottom of the drilling drill bit is connected to the mounting seat, and a connecting arm is provided on the inner side of the mounting seat to be connected to the mechanical cantilever, and the outer bearing of the pump body fixedly installed on the outer side of the mechanical cantilever is connected to a connecting sleeve, and a first cylinder is provided on the outer side of the connecting sleeve to be connected to a fixed frame, the fixed frame is fixed to the top of the frame body, and the fixed frame is arranged in an "L" shape as a whole.

[0008] Preferably, the bucket mechanism includes a bucket body, a dial, an angle adjustment mechanism and a material guide plate, the outer side of the bucket body is connected to the outside of the conveying mechanism through the angle adjustment mechanism, and two dials are arranged on the inner side of the bucket body, the bottoms of the two dials are coaxially connected with mutually meshing rotating gears, and the bottom of one of the rotating gears is coaxially connected with a driving motor, the top end of the bucket body is connected with an inclined material guide plate, and the other side top end of the material guide plate is arranged above the conveying mechanism.

[0009] Preferably, the angle adjustment mechanism includes a third cylinder and a rotating shaft, the top end of one side of the third cylinder is fixed to the outside of the conveying mechanism, and the top end axis of the other side of the third cylinder is arranged on the outside of the rotating shaft, and the outer side of the rotating shaft is also connected to a fixed rod with a bearing, and the fixed rod is used to connect with the conveying mechanism, and the inner side of the rotating shaft is connected to the top end of the bucket body.

[0010] Preferably, the conveying mechanism includes a conveyor belt, a rotating roller and a support seat, two rotating rollers are symmetrically arranged on the inner side of the conveyor belt, and the outer side bearings of the rotating rollers are arranged on the inner side of the support seat, and the outer side of the support seat is connected to the side bearing of the third cylinder.

[0011] Preferably, the cross-section of the adjusting drill plate is arranged in an arc-shaped structure, and it is connected to the mounting seat through a connecting shaft, the bottom of the adjusting drill plate is arranged in a bent structure, and the steering mechanism at the bottom is arranged outside the middle fixed tube, the middle fixed tube is fixed at the center position of the mounting seat, and the back of the mounting seat is connected to a motor for controlling the mounting seat 14 to rotate; The top end of the connecting water pipe penetrates the annular tube outside the mounting seat, the interior of the mounting seat is a hollow structure, and it penetrates the middle fixed tube. External atomizing nozzles are evenly distributed on the outer edge of the mounting seat, and an internal atomizing nozzle is arranged on the top end of the middle fixed tube. The annular tube bearing is installed in the middle of the mounting seat.

[0012] Preferably, the steering mechanism includes a movable sleeve, an adjusting rotating rod and a second cylinder, one side of the second cylinder is fixed to the inner side of the mounting seat, and the other side is fixed to the inner side of the movable sleeve, the movable sleeve slides outside the middle fixed tube, and the outer shaft of the movable sleeve is connected to the adjusting rotating rod, and the other side of the adjusting rotating rod is connected to the bottom of the adjusting drill plate.

[0013] Preferably, a shielding plate is further provided at a position of the middle fixed tube towards the top end, and the shielding plate is provided in a circular structure, and its size is larger than the minimum size of the bending structure at the bottom of the adjusting drill plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the coal mine boring machine; The top of the atomizing dust reduction mechanism is respectively connected to the external atomizing nozzle and the internal atomizing nozzle, and they are respectively installed at the internal and external positions of the tunneling drill bit. Therefore, when the tunneling drill bit is excavating the coal mine, atomizing dust reduction can be performed both inside and outside the mined coal mine, thereby achieving a large-scale dust reduction effect, ensuring that the driver can reduce the absorption of coal mine dust when operating the entire tunneling machine, reducing the harm to the driver's body and reducing the probability of pneumoconiosis; The entire tunneling drill bit is composed of adjustable drill plates distributed at equal angles, and the adjustable drill plates can change their angles along with the steering mechanism under the action of the connecting shaft, so that the shape of the entire tunneling drill bit can be changed into a cylindrical, cylindrical and trumpet-shaped structure, which is convenient for the staff to change the shape of the tunneling drill bit according to the internal size of the tunnel and the shape of the coal mine being tunneled when operating the tunneling machine, thereby achieving the effect of flexible control. At the same time, since the bottom of the adjustable drill plate is set as a bent structure, combined with the setting of the shielding plate at the top of the middle fixed pipe, when the entire tunneling drill bit is tunneling, even if coal mines fall into the middle of each adjustable drill plate, they can be blocked by the bent structure and the shielding plate at the bottom of the adjustable drill plate, thereby not affecting the internal steering mechanism, and also conveniently when the entire tunneling drill bit is in a vertical position, the coal mines can fall above the bucket mechanism and be transmitted out; The setting of the inclined guide plate fixed above the bucket mechanism, since the guide plate is located above the entire conveyor belt, even if the bucket mechanism changes its working angle, it can ensure that the coal shoveled by it can eventually fall above the conveyor belt and be transported out, thereby achieving the effect of thorough shoveling and transmission of the coal, without the need for subsequent processing by staff, with a high degree of automation, easy operation, and more manpower saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the top view structure of the present invention; Figure 3 It is a bottom view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the connection structure between the transmission mechanism and the bucket mechanism of the present invention; Figure 5 It is a schematic diagram of a half-section structure of the connection between the transmission mechanism and the bucket mechanism of the present invention; Figure 6 It is a schematic diagram of a partially enlarged structure of the connection between the transmission mechanism and the bucket mechanism of the present invention; Figure 7 It is a partial enlarged structural schematic diagram of the material guide plate of the present invention; Figure 8This is a schematic diagram of the main structure of the tunneling drill bit of the present invention; Fig. 9 It is a schematic diagram of the partial internal structure of the tunneling drill bit of the present invention; Fig.10 It is a schematic diagram of the side view structure of the excavation drill bit of the present invention; Fig.11 It is a schematic diagram of the top view structure of the present invention; Fig.12 It is a schematic diagram of the partially enlarged structure of the steering mechanism adjusting the drill plate connection of the present invention.

[0016] In the figure: 1. crawler walking mechanism; 2. frame body; 21. driver's seat; 3. atomizing dust suppression mechanism; 31. storage water tank; 32. connecting water pipe; 33. pump body; 4. mechanical cantilever; 5. drilling drill; 51. connecting arm; 6. bucket mechanism; 61. bucket body; 62. dial wheel; 63. angle adjustment mechanism; 631. third cylinder; 632. rotating shaft; 64. guide plate; 7. conveying mechanism; 71. conveyor belt; 72. rotating roller; 73. supporting seat; 8. fixing frame; 9. first cylinder; 10. adjusting drill plate; 101. connecting shaft; 11. external atomizing nozzle; 12. internal atomizing nozzle; 13. middle fixed pipe; 14. mounting seat; 15. adjusting rotating rod; 16. shielding plate; 17. second cylinder; 18. moving sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0018] See also Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a technical solution: a coal mine boring machine, comprising a crawler walking mechanism 1, which is arranged at the bottom of the boring machine and is used for the entire boring machine to walk inside the tunnel; The conveying mechanism 7 is arranged at the middle position of the two crawler walking mechanisms 1 and is used for conveying the coal; The frame body 2 is arranged above the crawler walking mechanism 1 and the conveying mechanism 7; Also includes; A tunneling drill bit 5 is connected to the outer wall of the frame body 2 through a mechanical cantilever 4 and is used for tunneling and mining in coal mines; The bucket mechanism 6 is arranged at the top of the conveying mechanism 7 and is used to shovel the coal mined by the boring bit 5, so that the coal reaches the top of the conveying mechanism 7 for conveying, and then is transported out by the transport mechanism outside the boring machine; Atomizing dust reduction mechanism 3, which is arranged above the frame body 2, and is arranged at the center and outside of the boring drill bit 5, for performing internal and external atomizing dust reduction work; The tunneling drill bit 5 includes an adjustable drill plate 10 with equal angle distribution in an arc shape, and mining drill bits are evenly distributed on the outer wall of the adjustable drill plate 10. The tunneling drill bit 5 can change its angle under the action of the steering mechanism to achieve the effect of flexible adjustment according to the internal environment of the tunnel.

[0019] A driver's seat 21 is provided at the middle position of the top of the frame body 2, and a slope is provided on the outside of the driver's seat 21 for the driver to enter the work; The present application provides a coal mine boring machine with a boring drill bit 5 that can be flexibly adjusted. Specifically, when working, the staff first observes the working environment inside the tunnel. After the boring and mining conditions meet the standards, the driver can reach the inside of the driver's seat 21 through the slope outside the driver's seat 21, and then operate the entire boring machine. When operating, first control the entire frame body 2 to move through the crawler walking mechanism 1. After moving to the appropriate position, control the mechanical cantilever 4 to change the angle, so that the mechanical cantilever 4 drives its After the tunneling drill bit 5 at the top reaches the appropriate angle, the motor inside the tunneling drill bit 5 can be started, so that it drives the tunneling drill bit 5 to rotate and complete the tunneling and mining work. When tunneling and mining are carried out, the coal mine will fall to the top of the bucket mechanism 6, and be shoveled by the bucket mechanism 6. After that, it will reach the top of the conveying mechanism 7 and be conveyed out by the conveying mechanism 7. At the same time, when tunneling is carried out, the atomizing dust reduction mechanism 3 can also be started at the same time, so that it can perform atomizing spraying work outward, thereby ensuring that dust reduction work can be carried out during tunneling and mining.

[0020] Among them, according to Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, two groups of atomizing dust suppression mechanisms 3 are symmetrically arranged above the frame body 2, and include a storage water tank 31, a connecting water pipe 32 and a pump body 33. The storage water tank 31 is engaged with the top of the frame body 2, and a connecting water pipe 32 is arranged at the top of the frame body 2. A pump body 33 is arranged in the middle of the connecting water pipe 32, and the pump body 33 is installed on the outside of the mechanical cantilever 4. The top ends of the connecting water pipes 32 on the two atomizing dust suppression mechanisms 3 are connected to the external atomizing nozzle 11 and the internal atomizing nozzle 12 respectively; Specifically, when the entire tunnel boring machine is performing tunneling and mining work and needs to perform atomization and dust reduction, the pump body 33 needs to be started so that the water source inside the storage tank 31 is pumped into the positions of the external atomizing nozzle 11 and the internal atomizing nozzle 12 through the connecting water pipe 32, and then atomized and sprayed out at the positions of the external atomizing nozzle 11 and the internal atomizing nozzle 12 to achieve the effect of internal and external dust reduction.

[0021] Among them, according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Fig.10 and Fig.11 As shown, the bottom of the excavation drill bit 5 is connected to the mounting seat 14, and a connecting arm 51 is provided on the inner side of the mounting seat 14 to be connected to the mechanical cantilever 4, and the outer bearing of the pump body 33 fixedly installed on the outer side of the mechanical cantilever 4 is connected to a connecting sleeve, and a first cylinder 9 is provided on the outer side of the connecting sleeve to be connected to a fixing frame 8, and the fixing frame 8 is fixed to the top of the frame body 2, and the fixing frame 8 is arranged in an "L" shape as a whole; Specifically, when the angle of the tunneling drill bit 5 needs to be changed, the angle of the mechanical cantilever 4 needs to be adjusted. When adjusting, the first cylinder 9 on the fixed frame 8 needs to be started so that the first cylinder 9 drives the pump body 33 to move, thereby causing the mechanical cantilever 4 to rotate around the axis between the two fixed frames 8, thereby causing the angle of the entire mechanical cantilever 4 to change, thereby completing the angle change of the connecting arm 51. A motor is provided inside the connecting arm 51 to connect with the tunneling drill bit 5, thereby completing the effect of changing the angle of the tunneling drill bit 5.

[0022] Further, according to Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the bucket mechanism 6 includes a bucket body 61, a dial 62, an angle adjustment mechanism 63 and a material guide plate 64. The outer side of the bucket body 61 is connected to the outside of the conveying mechanism 7 through the angle adjustment mechanism 63, and two dials 62 are arranged on the inner side of the bucket body 61. The bottoms of the two dials 62 are coaxially connected with mutually meshing rotating gears, and the bottom of one rotating gear is coaxially connected with a driving motor. The top of the bucket body 61 is connected with an inclined material guide plate 64, and the other side top of the material guide plate 64 is arranged above the conveying mechanism 7.

[0023] The angle adjustment mechanism 63 includes a third cylinder 631 and a rotating shaft 632. The top end of one side of the third cylinder 631 is fixed to the outside of the conveying mechanism 7, and the top end of the other side of the third cylinder 631 is arranged on the outside of the rotating shaft 632. The outer side of the rotating shaft 632 is also connected to a fixed rod by a bearing, and the fixed rod is used to connect with the conveying mechanism 7. The inner side of the rotating shaft 632 is connected to the top end of the bucket body 61. Specifically, when the excavation drill 5 is excavating inside the tunnel, the coal will fall to the top of the bucket body 61, and then the driving motor at the bottom can be started to drive the gear at the top to rotate. When the gear rotates, it will mesh with another gear, so that the two gears rotate in the opposite direction and drive the two dial wheels 62 to rotate in the opposite direction, thereby moving the coal inward to the top of the guide plate 64, so that the coal passes through the guide plate 64 to the top of the conveying mechanism 7 and is then conveyed out; In the present application, when the coal mine is shoveled by the bucket mechanism 6, it is necessary to change the angle through the angle adjustment mechanism 63. At this time, it is necessary to start the third cylinder 631 so that it drives the rotating shaft 632 at its top to rotate. When the rotating shaft 632 rotates, it will drive the bucket body 61 and the guide plate 64 above it to change the angle. After reaching the appropriate angle, when the entire tunneling machine moves under the action of the crawler walking mechanism 1, it will collect the coal accumulated on the ground and the fallen coal, thereby achieving the effect of completely conveying and transporting the coal mine.

[0024] Furthermore, according to Figure 5 and Figure 7 As shown, the conveying mechanism 7 includes a conveying belt 71, a rotating roller 72 and a supporting seat 73. Two rotating rollers 72 are symmetrically arranged on the inner side of the conveying belt 71, and the outer side bearings of the rotating rollers 72 are arranged on the inner side of the supporting seat 73. The outer side of the supporting seat 73 is connected to a side bearing of the third cylinder 631. Specifically, when the coal arrives at the conveying mechanism 7 along with the guide plate 64, it reaches above the conveyor belt 71. At this time, a servo motor on a rotating roller 72 is started to drive the rotating roller 72 to rotate, thereby moving the conveyor belt 71 to complete the coal transportation work. Example

[0025] according to Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown, the cross section of the adjustable drill plate 10 is arranged in an arc-shaped structure, and it is connected to the mounting seat 14 through a connecting shaft 101. The bottom of the adjustable drill plate 10 is arranged in a bent structure, and the steering mechanism at the bottom is arranged outside the middle fixed tube 13, the middle fixed tube 13 is fixed at the center position of the mounting seat 14, and the back of the mounting seat 14 is connected to a motor for controlling the mounting seat 14 to rotate; The top end of the connecting water pipe 32 penetrates the annular tube outside the mounting seat 14. The interior of the mounting seat 14 is a hollow structure, and it penetrates the middle fixed tube 13. The outer edge of the mounting seat 14 is evenly distributed with external atomizing nozzles 11, and the top end of the middle fixed tube 13 is provided with an internal atomizing nozzle 12. The annular tube bearing is installed in the middle of the mounting seat 14.

[0026] The steering mechanism includes a moving sleeve 18, an adjusting rotating rod 15 and a second cylinder 17. One side of the second cylinder 17 is fixed to the inner side of the mounting seat 14, and the other side is fixed to the inner side of the moving sleeve 18. The moving sleeve 18 slides outside the middle fixed tube 13, and the outer shaft of the moving sleeve 18 is connected to the adjusting rotating rod 15, and the other side of the adjusting rotating rod 15 is connected to the bottom of the adjusting drill plate 10.

[0027] A shielding plate 16 is also provided at a position biased toward the top of the middle fixed tube 13, and the shielding plate 16 is provided in a circular structure, and its size is larger than the minimum size of the bending structure at the bottom of the adjusting drill plate 10; In the present application, when the driver is driving the tunnel boring machine and needs to change the shape of the tunnel boring bit 5 according to the actual situation, at this time, it is necessary to start the second cylinder 17 on the steering mechanism so that its top end drives the moving sleeve 18 to move outside the middle fixed tube 13. When the moving sleeve 18 moves, since the top end is provided with an axially connected adjusting rotating rod 15, the top end thereof will drive the adjusting drill plate 10 to change the angle around the connecting shaft 101. Since the adjusting drill plate 10 is distributed in an arc shape with equal angles, it is ensured that the top end thereof can be enlarged and reduced, so as to achieve the effect of controlling the change of the shape of the entire tunnel boring bit 5, and then the tunnel boring work can be carried out. When the drilling plate 10 is adjusted to change its angle, since its bottom is set to a bent structure and there is a shielding plate 16 for shielding, impurities in the coal mine will not reach its interior; In the present application, since the top end of the connecting water pipe 32 is arranged outside the annular tube, the inside of the annular tube and the inside of the middle fixed tube 13 at its top end will be filled with water, thereby causing the water to be sprayed out through the external atomizing nozzle 11 and the internal atomizing nozzle 12. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal mine boring machine, comprising: A crawler walking mechanism (1) is arranged at the bottom of the tunnel boring machine and is used for the entire tunnel boring machine to move inside the tunnel; A conveying mechanism (7) is arranged at a middle position between the two crawler walking mechanisms (1) and is used for conveying coal; A frame body (2) arranged above the crawler walking mechanism (1) and the conveying mechanism (7); Features: Also includes; A tunneling drill bit (5) is connected to the outer wall of the frame body (2) via a mechanical cantilever (4) and is used for tunneling and mining in a coal mine; A bucket mechanism (6) is arranged at the top of the conveying mechanism (7) and is used to shovel the coal mined by the tunneling drill (5), so that the coal reaches the top of the conveying mechanism (7) for conveying, and then is transported out by the transport mechanism outside the tunneling machine; An atomizing dust reduction mechanism (3) is arranged above the frame body (2) and is arranged at the center and outside of the tunneling drill bit (5) for performing internal and external atomizing dust reduction operations; The tunneling drill bit (5) comprises an adjustable drill plate (10) distributed at equal angles in an arc shape, and mining drill bits are evenly distributed on the outer wall of the adjustable drill plate (10). The tunneling drill bit (5) can change its angle under the action of a steering mechanism, thereby achieving the effect of flexible adjustment according to the internal environment of the tunnel.

2. A coal mine boring machine according to claim 1, characterized in that: A driver's seat (21) is provided at the middle position of the top end of the frame body (2), and a slope is provided on the outside of the driver's seat (21) for the driver to enter and work.

3. A coal mine boring machine according to claim 2, characterized in that: The atomizing dust suppression mechanism (3) is symmetrically arranged in two groups above the frame body (2), and comprises a storage water tank (31), a connecting water pipe (32) and a pump body (33); the storage water tank (31) is engaged with the top of the frame body (2), and the top of the frame body (2) is provided with a connecting water pipe (32); the pump body (33) is arranged in the middle of the connecting water pipe (32), and the pump body (33) is installed outside the mechanical cantilever (4); The top ends of the connecting water pipes (32) on the two atomizing dust reduction mechanisms (3) are respectively connected to the external atomizing nozzle (11) and the internal atomizing nozzle (12).

4. A coal mine boring machine according to claim 3, characterized in that: The bottom of the drilling bit (5) is connected to the mounting seat (14), and a connecting arm (51) is provided on the inner side of the mounting seat (14) and connected to the mechanical cantilever (4), and an outer bearing of a pump body (33) fixedly installed on the outer side of the mechanical cantilever (4) is connected to a connecting sleeve, and a first cylinder (9) is provided on the outer side of the connecting sleeve and connected to a fixing frame (8), and the fixing frame (8) is fixed to the top of the frame body (2), and the fixing frame (8) is arranged in an "L"-shaped structure as a whole.

5. A coal mine boring machine according to claim 1, characterized in that: The bucket mechanism (6) comprises a bucket body (61), a dial wheel (62), an angle adjustment mechanism (63) and a material guide plate (64); the outer side of the bucket body (61) is connected to the outer side of the conveying mechanism (7) via the angle adjustment mechanism (63); and two dial wheels (62) are arranged on the inner side of the bucket body (61); the bottoms of the two dial wheels (62) are coaxially connected to mutually meshing rotating gears, and the bottom of one of the rotating gears is coaxially connected to a driving motor; the top end of the bucket body (61) is connected to an inclined material guide plate (64), and the other top end of the material guide plate (64) is arranged above the conveying mechanism (7).

6. A coal mine boring machine according to claim 5, characterized in that: The angle adjustment mechanism (63) comprises a third cylinder (631) and a rotating shaft (632), wherein the top end of one side of the third cylinder (631) is fixed to the outside of the transmission mechanism (7), and the top end of the other side of the third cylinder (631) is arranged on the outside of the rotating shaft (632), and the outer side of the rotating shaft (632) is also connected to a fixed rod by a bearing, and the fixed rod is used to connect to the transmission mechanism (7), and the inner side of the rotating shaft (632) is connected to the top end of the bucket body (61).

7. A coal mine boring machine according to claim 6, characterized in that: The conveying mechanism (7) comprises a conveying belt (71), a rotating roller (72) and a supporting seat (73); two rotating rollers (72) are symmetrically arranged on the inner side of the conveying belt (71); outer bearings of the rotating rollers (72) are arranged on the inner side of the supporting seat (73); and the outer side of the supporting seat (73) is connected to a bearing on one side of the third cylinder (631).

8. A coal mine boring machine according to claim 7, characterized in that: The cross-section of the adjusting drill plate (10) is arranged in an arc-shaped structure, and it is connected to the mounting seat (14) via a connecting shaft (101); the bottom of the adjusting drill plate (10) is arranged in a bent structure, and the steering mechanism at the bottom is arranged outside the middle fixed tube (13); the middle fixed tube (13) is fixed at the center position of the mounting seat (14), and the back of the mounting seat (14) is connected to a motor for controlling the mounting seat 14 to rotate; The top end of the connecting water pipe (32) penetrates the annular tube outside the mounting seat (14); the interior of the mounting seat (14) is a hollow structure and penetrates the middle fixed tube (13); external atomizing nozzles (11) are evenly distributed at the outer edge of the mounting seat (14); the top end of the middle fixed tube (13) is provided with an internal atomizing nozzle (12); and the annular tube bearing is installed in the middle of the mounting seat (14).

9. A coal mine boring machine according to claim 8, characterized in that: The steering mechanism comprises a movable sleeve (18), an adjusting rotating rod (15) and a second cylinder (17); one side of the second cylinder (17) is fixed to the inner side of the mounting seat (14), and the other side is fixed to the inner side of the movable sleeve (18); the movable sleeve (18) slides outside the middle fixed tube (13); the outer shaft of the movable sleeve (18) is connected to the adjusting rotating rod (15); the other side of the adjusting rotating rod (15) is connected to the bottom of the adjusting drill plate (10).

10. A coal mine boring machine according to claim 9, characterized in that: A shielding plate (16) is also provided at a position of the middle fixed tube (13) towards the top end, and the shielding plate (16) is provided in a circular structure, and its size is larger than the minimum size of the bending structure at the bottom of the adjustment drill plate (10).

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