Automatic directional mining drilling machine for coal mine

Abstract

The invention relates to the technical field of coal mining equipment, and discloses a coal mine automatic directional mining drilling machine which comprises a vehicle body, a first electric guide rail is installed on the top of the vehicle body, a second electric guide rail is installed on a moving seat of the first electric guide rail, and a dust falling mechanism is fixedly connected to a moving seat of the second electric guide rail. And the dust falling mechanism comprises a driving assembly and a water spraying assembly, the driving assembly comprises an assembling frame and a motor, the outer side of the assembling frame is fixedly connected to a moving seat of the second electric guide rail, a protective cover is fixedly connected to the top of the assembling frame, and the motor is installed on the inner side of the protective cover. The water spraying assembly is driven to work through power transmission between transmission parts, water is atomized and sprayed to adsorb dust, the working environment is effectively improved, dust pollution is reduced, meanwhile, dust accumulation is prevented from affecting heat dissipation of equipment, the service life of the equipment is prolonged, and accumulated water is prevented from affecting operation of the equipment through the water drop sliding design.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining equipment, and particularly to an automated directional drilling rig for coal mines. Background Art

[0002] In the process of coal resource extraction, with the continuous improvement of requirements for extraction efficiency, safety, and resource utilization rate, automated directional drilling rigs for coal mines are increasingly widely used. The traditional manual extraction method is not only inefficient and difficult to meet the needs of large-scale extraction, but also has many safety hazards. For example, workers are prone to safety accidents when exposed to high-dust and high-risk environments for a long time. In this context, automated directional drilling rigs have emerged. Through automated control technology, they can achieve precise positioning and efficient drilling of holes, effectively reducing labor input, improving extraction efficiency, and at the same time reducing the labor intensity and safety risks of workers, gradually becoming an important development direction in the coal mining industry.

[0003] Existing automated directional drilling rigs for coal mines usually adopt a method of combining motor drive with mechanical transmission to achieve the movement and drilling operations of the rig. In terms of movement, generally through a wheeled or tracked structure, the motor drives the traveling mechanism through transmission components such as a gearbox, enabling the rig to move to the target position at the coal mining site. During the drilling operation, the motor drives the drill bit to rotate, and the position of the drill bit is adjusted and directionally drilled with the assistance of devices such as guide rails.

[0004] However, in actual application scenarios, there are still many problems with existing automated directional drilling rigs for coal mines. In a complex coal mining site, the moving devices of some rigs are difficult to quickly and accurately reach the target position, and the positioning accuracy is insufficient, resulting in large drilling deviations, affecting extraction efficiency and resource utilization rate. Moreover, a large amount of dust is easily generated during the extraction process, leading to an excessive dust concentration in the working environment. This not only endangers the health of workers but also causes dust to accumulate on the surface of the equipment, affecting equipment heat dissipation and normal operation, increasing equipment maintenance costs and failure risks. Therefore, the present invention provides an automated directional drilling rig for coal mines to solve the deficiencies existing in the prior art. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automated directional drilling rig for coal mines, which solves the problem that a large amount of dust is generated during the operation of the existing automated directional drilling rig for coal mines, covering the surface of the equipment, affecting heat dissipation, and endangering the health of workers.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A coal mine automated directional drilling rig, comprising a vehicle body, on the top of which an electric guide rail 1 is installed. On the moving seat of the electric guide rail 1, an electric guide rail 2 is installed. On the moving seat of the electric guide rail 2, a dust reduction mechanism is fixedly connected. The dust reduction mechanism includes a driving component and a sprinkling component. The driving component includes an assembly frame and a motor. The outside of the assembly frame is fixedly connected to the moving seat of the electric guide rail 2. The top of the assembly frame is fixedly connected with a protective cover. The motor is installed inside the protective cover. The output end of the motor is fixedly connected with a transmission rod. The outside of the transmission rod is rotationally connected to the internal through hole of the protective cover. One end of the transmission rod is fixedly connected with a drill bit. The outside of the drill bit is fixedly connected with a driving bevel gear. Inside the protective cover, a driven bevel gear is rotationally connected. The driving bevel gear meshes with the driven bevel gear.

[0007] Preferably, one end of the driven bevel gear is fixedly connected with a turntable. The outside of the turntable is fixedly connected with a shift lever. The outside of the assembly frame is fixedly connected with two sleeve rods. One end of the sleeve rod is fixedly connected to the outside of the assembly frame.

[0008] Preferably, the sprinkling component includes a cross frame and two mounting cylinders. The outside of the cross frame is slidably connected to the inside of the two sleeve rods. The mounting cylinder is fixedly connected to the outside of the assembly frame.

[0009] Preferably, both ends of the cross frame respectively penetrate through the inner walls of the two mounting cylinders and are fixedly connected with pistons. The outside of the pistons is slidably connected to the inner walls of the mounting cylinders. The outside of the shift lever is slidably connected to the inside of the cross frame.

[0010] Preferably, the outside of the mounting cylinder is fixedly connected with a water outlet pipe. Inside the water outlet pipe, a one-way valve is installed. The top of the protective cover is fixedly connected with a nozzle plate. One end of the water outlet pipe is fixedly connected to the outside of the nozzle plate.

[0011] Preferably, a groove is opened on the top of the vehicle body. Inside the groove, a water tank is arranged. The other end of the mounting cylinder is fixedly connected with a water inlet pipe. One end of the water inlet pipe penetrates through the inner wall of the water tank and extends into its interior. Inside the water inlet pipe, a one-way valve is installed.

[0012] Preferably, a support component is arranged at the bottom of the vehicle body. The support component includes two hydraulic cylinders and a support frame. The hydraulic cylinders are installed inside the vehicle body. The output ends of the two hydraulic cylinders are fixedly connected with a connecting plate. The inside of the support frame is fixedly connected to both ends of the connecting plate.

[0013] Preferably, a storage groove is opened at the bottom of the vehicle body. The outside of the support frame is fitted to the inside of the storage groove.

[0014] The present invention provides a coal mine automated directional drilling rig, which has the following beneficial effects:

[0015] 1. The present invention has an efficient dust reduction function. During the drilling process, the power transmission between the transmission components is utilized to drive the sprinkler assembly to work. By atomizing and spraying water to adsorb dust, the working environment is effectively improved, dust pollution is reduced, and at the same time, the influence of dust accumulation on equipment heat dissipation is avoided, the service life of the equipment is prolonged, and the water droplet sliding design prevents water accumulation from affecting the operation of the equipment, ensuring the stable operation of the device in a complex environment, and reflecting good environmental adaptability and equipment protection performance.

[0016] 2. Through the coordinated operation of the driving structure, double electric guide rails and the support assembly, the present invention realizes autonomous movement, precise positioning and stable support. Compared with traditional manual operation, it greatly reduces the labor input and time cost, significantly improves the efficiency of the mining operation. The automatic positioning system can accurately align the target point, avoiding deviations caused by manual operation, ensuring the accuracy and quality of the drilling operation, and realizing the automation and high efficiency of the mining process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a schematic structural view of the protective cover of the present invention;

[0019] Figure 3 is a schematic structural view of the cross frame of the present invention;

[0020] Figure 4 is a schematic structural view of the nozzle plate of the present invention;

[0021] Figure 5 is a schematic structural view of the support frame of the present invention.

[0022] Wherein, 1, vehicle body; 2, first electric guide rail; 3, second electric guide rail; 4, assembly frame; 5, protective cover; 6, motor; 7, transmission rod; 8, drill bit; 9, driving bevel gear; 10, driven bevel gear; 11, turntable; 12, shift lever; 13, cross frame; 14, sleeve rod; 15, piston; 16, mounting cylinder; 17, water outlet pipe; 18, nozzle plate; 19, water inlet pipe; 20, groove; 21, water tank; 22, storage groove; 23, hydraulic cylinder; 24, connecting plate; 25, support frame. DETAILED DESCRIPTION OF THE INVENTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0024] Please refer to the attached Figure 1 - attached Figure 5, an embodiment of the present invention provides a coal mine automated directional drilling rig, which includes a vehicle body 1. A transmission system is arranged inside the vehicle body 1 as a driving structure. The starting output power is transmitted to the tires through a drive shaft to realize the flexible movement of the device. An electric guide rail 1 is installed on the top of the vehicle body 1, and an electric guide rail 2 with the same driving principle is installed on its moving seat. The two cooperate to drive the connecting component to perform precise displacement in a plane. A dust reduction mechanism is fixedly connected to the moving seat of the electric guide rail 2. The mechanism includes a driving component and a sprinkling component. The driving component includes an assembly frame 4 and a motor 6. The outside of the assembly frame 4 is fixedly connected to the moving seat of the electric guide rail 2. A protective cover 5 is fixedly connected to the top of the assembly frame 4. The motor 6 is installed inside the protective cover 5. After the motor 6 is started, a transmission rod 7 fixedly connected to its output end rotates accordingly. The outside of the transmission rod 7 is rotatably connected to the internal through hole of the protective cover 5, and one end of it is fixedly connected to a drill bit 8 for drilling operations on coal mines.The outer side of the drill bit 8 is fixedly connected with a driving bevel gear 9, and the inner side of the protective cover 5 is rotatably connected with a driven bevel gear 10. Both are high-precision hard-toothed bevel gears with high transmission efficiency and low noise. The driving bevel gear 9 is meshed with the driven bevel gear 10. One end of the driven bevel gear 10 is fixedly connected with a turntable 11, and the outer side of the turntable 11 is fixedly connected with a lever 12. The outer side of the assembly frame 4 is fixedly connected with two sleeve rods 14, and one end of the sleeve rod 14 is fixedly connected to the outer side of the assembly frame 4 for guiding the movement of other components. The sprinkler assembly includes a cross frame 13 and two mounting tubes 1 6, the outer side of the cross frame 13 is slidably connected to the inner side of the two sleeve rods 14, the mounting cylinder 16 is fixedly connected to the outer side of the assembly frame 4, the two ends of the cross frame 13 respectively penetrate the inner walls of the two mounting cylinders 16 and are fixedly connected with the piston 15, the outer side of the piston 15 is slidably connected to the inner wall of the mounting cylinder 16, the outer side of the lever 12 is slidably connected to the inner side of the cross frame 13, the outer side of the mounting cylinder 16 is fixedly connected with the outlet pipe 17, the inside of the outlet pipe 17 is installed with a one-way valve, the top of the protective cover 5 is fixedly connected with the nozzle plate 18, the nozzle plate 18 adopts a porous atomizing nozzle structure, and the outlet One end of the water pipe 17 is fixedly connected to the outer side of the nozzle plate 18, a groove 20 is provided on the top of the vehicle body 1, a water tank 21 is provided inside the groove 20, and the other end of the mounting cylinder 16 is fixedly connected to the water inlet pipe 19, one end of the water inlet pipe 19 penetrates the inner wall of the water tank 21 and extends to the inside thereof, a one-way valve is installed inside the water inlet pipe 19, when the transmission rod 7 rotates, the active bevel gear 9 drives the driven bevel gear 10 to rotate, thereby rotating the turntable 11, and the lever 12 drives the cross frame 13 to move back and forth, driving the piston 15 to move back and forth in the mounting cylinder 16, so as to realize the water inlet. The water is pumped out by the box 21 and sprayed through the nozzle plate 18 to achieve the dust reduction effect. A support assembly is provided at the bottom of the vehicle body 1, including two hydraulic cylinders 23 and a support frame 25. The hydraulic cylinder 23 is installed inside the vehicle body 1. The output ends of the two hydraulic cylinders 23 are fixedly connected with a connecting plate 24. The inner side of the support frame 25 is fixedly connected to the two ends of the connecting plate 24. The support frame 25 adopts a rectangular frame structure made of high-strength steel, and non-slip rubber pads are provided at the four corners. A storage groove 22 is provided at the bottom of the vehicle body 1, and the outer side of the support frame 25 fits the inner side of the storage groove 22. Starting the hydraulic cylinder 23 can make the support frame 25 move down to support the vehicle body 1 to prevent the tire from sliding, and cooperate with the electric guide rail 1 2 and the electric guide rail 2 3 to assist the drill bit 8 in directional drilling.

[0025] Specifically, first, start the internal drive structure of the vehicle body 1 to rotate the tires, enabling the device to have flexible mobility. According to the actual situation at the coal mining site, it can quickly and conveniently move to the appropriate position. Compared with traditional manual handling equipment, it greatly improves work efficiency, reduces labor consumption and time costs. When the device reaches the predetermined mining position, with the assistance of the electric guide rail 1 2 and the electric guide rail 2 3, the drill bit 8 can be adjusted in position. This collaborative working mode of the double guide rails enables the drill bit 8 to be flexibly and accurately adjusted in the horizontal and vertical directions, ensuring that the drill bit 8 can accurately align with the target point of coal mining. Compared with manual adjustment, its positioning accuracy has been greatly improved, avoiding problems such as low mining efficiency and resource waste caused by positioning deviation. Next, start the two hydraulic cylinders 23, drive the connecting plate 24 to move downward, so that the support frames 25 fixed at both ends of the connecting plate 24 move downward until the bottom of the support frame 25 contacts the ground, firmly supporting the vehicle body 1. The support frame 25 is a rectangular frame structure made of high-strength steel, and anti-slip rubber pads are provided at the four corners. While supporting the vehicle body 1, it can effectively increase the friction with the ground and prevent the tires from sliding. At this time, the storage groove 22 provides sufficient space for the downward movement of the support frame 25, and the outer side of the support frame 25 fits with the inner side of the storage groove 22, effectively preventing it from shaking when the support frame 25 is retracted. After the support frame 25 supports the vehicle body 1, it not only enhances the overall stability of the device but also cooperates with the electric guide rail 1 2 and the electric guide rail 2 3 to assist the drill bit 8 in directional drilling. This stable support structure enables the drill bit 8 not to deviate during the drilling process due to equipment shaking, ensuring the verticality and accuracy of the drilling, effectively improving the drilling quality, and also eliminating the cumbersome steps of traditional manual adjustment for mining, further enhancing the automation degree and work efficiency of the mining operation. During drilling, start the motor 6, and the output end of the motor 6 drives the transmission rod 7 to rotate. The transmission rod 7 drills the coal mine through the drill bit 8 fixedly connected to one end of it. Since a large amount of dust will be generated during the high-speed rotation of the drill bit 8 and fill the air, it will not only pollute the working environment but also affect the heat dissipation and normal operation of the equipment. At this time, the rotation of the transmission rod 7 will transmit the power to the turntable 11 through the driving bevel gear 9 and the driven bevel gear 10. The driving bevel gear 9 and the driven bevel gear 10 are hard tooth surface bevel gears with high-precision machining, featuring high transmission efficiency and low noise. When the transmission rod 7 rotates, the driving bevel gear 9 rotates accordingly, and through meshing with the driven bevel gear 10, it transmits the power to the driven bevel gear 10, thereby driving the turntable 11 fixedly connected to the driven bevel gear 10 to rotate. When the turntable 11 rotates, the dial rod 12 fixedly connected to its outer side also rotates accordingly. The outer side of the dial rod 12 is slidably connected to the inner side of the cross frame 13. When the dial rod 12 rotates to a specific position, it will toggle the cross frame 13 to move reciprocally.The outer side of the cross frame 13 is slidably connected to the inner side of the two sleeve rods 14. The sleeve rods 14 provide a stable guiding effect for the movement of the cross frame 13, ensuring the stability of the movement of the cross frame 13. The two ends of the cross frame 13 respectively penetrate the inner walls of the two installation cylinders 16 and are fixedly connected with pistons 15. The outer side of the piston 15 is slidably connected to the inner wall of the installation cylinder 16. Therefore, the reciprocating movement of the cross frame 13 will drive the two pistons 15 to reciprocate in the installation cylinder 16. When the piston 15 moves in the direction away from the water tank 21, negative pressure is formed in the installation cylinder 16. Under the action of the one-way valve inside the water inlet pipe 19, the water in the water tank 21 is pumped out and sucked into the interior of the installation cylinder 16; when the piston 15 moves in the direction close to the water tank 21, the water in the installation cylinder 16 is squeezed. Under the action of the one-way valve inside the water outlet pipe 17, the water is transported to the nozzle plate 18 through the water outlet pipe 17. The nozzle plate 18 adopts a porous atomizing nozzle structure, which can atomize water into fine water droplets and spray them evenly into the air. These atomized water droplets can effectively absorb dust particles in the air, increase their weight and settle to the ground, thereby achieving the effect of dust reduction. This not only avoids dust accumulation on the equipment to affect heat dissipation and prolongs the service life of the equipment, but also, the water droplets will slide down along the front end inclined surface of the vehicle body 1. The front end of the vehicle body 1 is designed as an inclined surface, and the inclination angle is optimized, which can make the water droplets slide smoothly under the action of gravity, avoiding the accumulation of water droplets from affecting the operation of other structures, and ensuring the normal and stable operation of the entire device.

[0026] Working principle: First, start the internal driving structure of the vehicle body 1 to rotate the tires and move the device to the appropriate position for coal mining. Then, with the assistance of the electric guide rail 1 2 and the electric guide rail 2 3, the drill bit 8 can be adjusted in position, and the two hydraulic cylinders 23 are started to enable the support frame 25 to support the vehicle body 1 and prevent the tires from sliding. The electric guide rail 1 2 and the electric guide rail 2 3 can also assist the drill bit 8 in directional drilling, thereby ensuring the stability of the device and eliminating the traditional manual adjustment steps for mining. In addition, during drilling, a large amount of dust generated will spread in the air. In the air, at this time, the rotation of the transmission rod 7 will transmit power to the turntable 11 through the active bevel gear 9 and the driven bevel gear 10, and then the lever 12 will drive the cross frame 13 to reciprocate, which will drive the two pistons 15 to reciprocate, and then the water in the water tank 21 will be pumped out through the water inlet pipe 19, sucked into the interior of the installation cylinder 16, and then transported to the nozzle plate 18 through the water outlet pipe 17 for atomization spraying, so as to achieve the effect of dust reduction, avoid dust accumulation on the equipment to affect heat dissipation, and at the same time, water droplets will slide down along the front end slope of the vehicle body 1 to avoid affecting the operation of other structures.

[0027] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine automated directional drilling rig, comprising a vehicle body (1), characterized in that, An electric guide rail one (2) is installed on the top of the vehicle body (1). An electric guide rail two (3) is installed on the moving seat of the electric guide rail one (2). A dust reduction mechanism is fixedly connected to the moving seat of the electric guide rail two (3). The dust reduction mechanism includes a driving component and a water spraying component. The driving component includes an assembly frame (4) and a motor (6). The outer side of the assembly frame (4) is fixedly connected to the moving seat of the electric guide rail two (3). A protective cover (5) is fixedly connected to the top of the assembly frame (4). The motor (6) is installed inside the protective cover (5). The output end of the motor (6) is fixedly connected to a transmission rod (7). The outer side of the transmission rod (7) is rotatably connected to the inner through hole of the protective cover (5). One end of the transmission rod (7) is fixedly connected to a drill bit (8). An active bevel gear (9) is fixedly connected to the outer side of the drill bit (8). A driven bevel gear (10) is rotatably connected to the inside of the protective cover (5). The active bevel gear (9) meshes with the driven bevel gear (10).

2. The automated directional drilling rig for coal mines according to claim 1, characterized in that, One end of the driven bevel gear (10) is fixedly connected to a turntable (11). A dial rod (12) is fixedly connected to the outer side of the turntable (11). Two sleeve rods (14) are fixedly connected to the outer side of the assembly frame (4). One end of the sleeve rod (14) is fixedly connected to the outer side of the assembly frame (4).

3. The automatic directional mining drill for coal mines according to claim 2, characterized in that, The water spraying component includes a cross frame (13) and two mounting cylinders (16). The outer side of the cross frame (13) is slidably connected to the inner sides of the two sleeve rods (14). The mounting cylinder (16) is fixedly connected to the outer side of the assembly frame (4).

4. The automatic directional drilling rig for coal mines according to claim 3, wherein, Both ends of the cross frame (13) respectively penetrate through the inner walls of the two mounting cylinders (16) and are fixedly connected to pistons (15). The outer sides of the pistons (15) are slidably connected to the inner walls of the mounting cylinders (16). The outer side of the dial rod (12) is slidably connected to the inside of the cross frame (13).

5. The automatic directional coal mining drill according to claim 4, characterized in that, A water outlet pipe (17) is fixedly connected to the outer side of the mounting cylinder (16). A one-way valve is installed inside the water outlet pipe (17). A nozzle plate (18) is fixedly connected to the top of the protective cover (5). One end of the water outlet pipe (17) is fixedly connected to the outer side of the nozzle plate (18).

6. The automatic directional mining drill for coal mines according to claim 3, characterized in that, A groove (20) is formed in the top of the vehicle body (1). A water tank (21) is arranged inside the groove (20). The other end of the mounting cylinder (16) is fixedly connected to a water inlet pipe (19). One end of the water inlet pipe (19) penetrates through the inner wall of the water tank (21) and extends into its interior. A one-way valve is installed inside the water inlet pipe (19).

7. The automatic directional drilling rig for coal mines according to claim 1, characterized in that, A support component is arranged at the bottom of the vehicle body (1). The support component includes two hydraulic cylinders (23) and a support frame (25). The hydraulic cylinders (23) are installed inside the vehicle body (1). The output ends of the two hydraulic cylinders (23) are fixedly connected to a connecting plate (24). The inner sides of the support frame (25) are fixedly connected to both ends of the connecting plate (24).

8. The automatic directional coal mining drill according to claim 7, characterized in that, A storage groove (22) is formed in the bottom of the vehicle body (1). The outer side of the support frame (25) is fitted to the inside of the storage groove (22).

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