Mining drilling machine with drilling direction guiding device

Abstract

The invention discloses a mining drilling machine with a drilling direction guiding device, and belongs to the technical field of mining equipment, the mining drilling machine comprises a first guiding device and a second guiding device, the first guiding device comprises a first guiding rod, and an optical fiber torque sensor and a guiding bead are installed on the inner wall of the first guiding rod; the second guiding device comprises a second guiding rod, one end of the second guiding rod is fixedly connected with the rotating ball, a baffle ring is installed at the other end of the second guiding rod, the second guiding rod is sleeved with a guiding sleeve, sliding grooves are evenly distributed in the outer side of the guiding sleeve, and first sliding blocks are arranged in the sliding grooves and hinged to a first hydraulic cylinder. According to the mining drilling machine with the drilling direction guiding device, the first direction guiding device and the second direction guiding device are arranged to guide the drilling direction, a second hydraulic cylinder and a third hydraulic cylinder are arranged to adjust the initial drilling angle of the drilling machine, and a dust collecting cover and a dust collecting box are arranged to prevent dust raising; the water mist spraying system can enable dust particles to form larger particle clusters.

Description

Technical Field

[0001] The present invention relates to the technical field of mining equipment, in particular to a mining drill with a drilling direction guiding device. Background Art

[0002] In open-pit mining operations, rock drilling is a critical link, connecting the upstream and downstream processes. The quality of this operation directly determines blasting efficiency and ore mining returns. As a core tool, drilling equipment uses a drill bit, which is harder than the rock, to create cylindrical blastholes in the target rock mass through rotary cutting or extrusion, creating holes that meet blasting design requirements. The depth, diameter, and verticality of these blastholes directly affect the explosive charge, blasting energy distribution, and ore fragmentation efficiency.

[0003] However, in actual mining, traditional drilling equipment relies on support frames for installation and fixation, lacking a drill bit correction mechanism. This model presents significant limitations. The rock mass in open-pit mines exhibits a complex distribution of lithologies due to geological tectonic movements: within the same mining area, the rock may contain layers of hard granite and soft shale, or may be densely populated with fractures and faults. As the drill advances, the lateral compressive forces at the interface between soft and hard rock, or the stress concentrations in the fractures, can disrupt the drill bit's force balance and cause drilling deviation.

[0004] This type of drilling deviation has multiple negative impacts. From a quality perspective, tilted or curved blastholes prevent the explosives from being evenly distributed within the ore rock. This significantly increases the percentage of large ore fragments after blasting, and in some mines, the percentage of large ore fragments even soars from normal levels, increasing secondary crushing costs. From a safety perspective, offset drilling can cause uncontrolled blasting rock flyout, posing a threat to surrounding equipment and personnel. From a mining efficiency perspective, holes that exceed the deviation standard require rework and re-drilling, extending single-cycle operation time and severely restricting mine production capacity. Therefore, it is urgent to design a mining drill rig with a drilling direction guidance device to address these issues. Summary of the Invention

[0005] The purpose of the present invention is to provide a mining drilling rig with a drilling direction guiding device, wherein a first direction guiding device and a second direction guiding device are provided to guide the drilling direction, the guide beads provided on the inner wall of the first guide rod significantly reduce the resistance during feeding of the drill rod through rolling friction, and at the same time constrain the axial direction of the drill rod to reduce drilling deviation, the second direction guiding device corrects the drilling direction of the roller drill bit by changing the extension and contraction amount of the first hydraulic cylinder at different positions, thereby reducing the drilling deviation rate; the second hydraulic cylinder and the third hydraulic cylinder are provided to adjust the initial drilling angle of the drilling rig, and the laser positioning device is provided to enable the drill bit to be positioned within the specified drilling direction. Drilling is carried out at a fixed position to enhance environmental applicability and reduce errors caused by manual positioning; a spiral slag discharge chute is set to reduce drill jamming caused by accumulation of rock debris; a dust hood and a dust box are set to prevent dust, and the water mist spray system in the dust box can make dust particles adhere to the surface of water droplets through inertial collision, interception, and condensation to form larger particle clusters, thereby accelerating dust sedimentation and improving the working environment; a fiber optic torque sensor and a hydraulic unloading device are set, and when the fiber optic torque sensor detects data abnormality, the hydraulic unloading device can unload the hydraulic motor to prevent the drill rod from breaking.

[0006] To achieve the above-mentioned objectives, the present invention provides a mining drilling rig with a drilling direction guiding device, comprising a first guiding device and a second guiding device, the first guiding device comprising a first guiding rod, an inner wall of which is provided with an optical fiber torque sensor and a guide bead; the second guiding device comprises a second guiding rod, one end of the second guiding rod is fixedly connected to a rotating ball, and a retaining ring is installed at the other end thereof, a guide sleeve is provided on the second guide rod, and sliding grooves are evenly distributed on the outer side of the guide sleeve, a first slider is provided in the sliding groove, and the first slider is hinged to the first hydraulic cylinder.

[0007] Preferably, the first guide rod is fixedly mounted on the support frame, a first motor is provided on the top of the support frame, the first motor is connected to the first threaded rod through a transmission structure, a second slider is sleeved on the first threaded rod, a threaded hole is provided on the second slider that engages with the first threaded rod, the second slider is fixedly connected to the slide plate, a hydraulic motor is installed on the slide plate, the hydraulic motor is connected to the drill rod, the drill rod is coaxially arranged with the first guide rod, and the hydraulic motor is connected to the hydraulic unloading device.

[0008] Preferably, a first mounting groove is provided on the top of the rotating ball, the roller drill bit is threadedly connected to the first mounting groove, the rotating ball is connected to the reaming drill bit, a second mounting groove is provided on the reaming drill bit, the top of the second mounting groove cooperates with the rotating ball, and the first hydraulic cylinder is hingedly installed in the second mounting groove.

[0009] Preferably, the reaming drill bit is connected to the drill rod, and the reaming drill bit is evenly distributed with slag discharge grooves and teeth, the slag discharge grooves are spiral, and the teeth include flat teeth and pointed teeth.

[0010] Preferably, a hinge block is fixedly connected to the middle of the support frame, the top of the hinge block is hinged to the second hydraulic cylinder, the middle of the hinge block is hinged to the first connecting rod, the bottom of the first connecting rod near one end of the hinge block is hinged to the third hydraulic cylinder, the second hydraulic cylinder is hinged to the first connecting rod, the first connecting rod and the third hydraulic cylinder are both hinged to the support block, and the support block is fixedly mounted on the vehicle body.

[0011] Preferably, a U-shaped support leg is provided at the bottom of the support frame, and a laser positioning device is installed at the center of the bottom of the U-shaped support leg.

[0012] Preferably, a dust collection hood is installed at the end of the first guide rod, and the dust collection hood is a retractable structure. A dust suction pipe is installed on the side wall of the dust collection hood, and the dust suction pipe is connected to the dust collection box, and the dust collection box is connected to the negative pressure fan. A water mist spray system is provided on the top of the inner wall of the dust collection box, and a second motor is installed inside the side wall of the dust collection box, and the second motor is connected to the transmission rod. Two turbines are installed on the transmission rod, and both turbines are engaged with the worm, and both worms are fixedly connected to the second threaded rod. A scraper is installed on the second threaded rod, and a threaded hole is provided on the scraper to cooperate with the second threaded rod. A weight sensor is provided in an array inside the bottom plate of the dust collection box, and a box door is provided on the side wall of the dust collection box away from the second motor.

[0013] Preferably, an inclination sensor and an azimuth sensor are installed on the cone drill bit, and the laser positioning device, the optical fiber torque sensor, the weight sensor, the inclination sensor and the azimuth sensor interact with the control system for signal exchange, and the control system is connected to the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the first motor, the hydraulic unloading device, the second motor and the hydraulic motor.

[0014] Therefore, the present invention adopts the above-mentioned mining drilling rig with a drilling direction guiding device, which has the following beneficial effects:

[0015] (1) A first direction guiding device and a second direction guiding device are provided to guide the drilling direction. The guide beads provided on the inner wall of the first guide rod significantly reduce the resistance of the drill rod during feeding through rolling friction, and at the same time constrain the direction of the drill rod axis to reduce drilling deviation. The second direction guiding device corrects the drilling direction of the roller drill bit by changing the extension and contraction amount of the first hydraulic cylinder at different positions, thereby reducing the drilling deviation rate.

[0016] (2) The second and third hydraulic cylinders are provided to adjust the initial drilling angle of the drilling rig, and the laser positioning device is provided to enable the drill bit to drill at a specified position, thereby enhancing environmental applicability and reducing errors caused by manual positioning;

[0017] (3) Setting up a spiral slag chute can reduce drill sticking caused by the accumulation of rock debris;

[0018] (4) Setting up dust hoods and dust collection boxes can prevent dust from flying. The water mist spray system in the dust collection box can make dust particles adhere to the surface of water droplets through inertial collision, interception, and condensation to form larger particle clusters, thereby accelerating dust sedimentation and improving the working environment;

[0019] (5) A fiber optic torque sensor and a hydraulic unloading device are provided. When the fiber optic torque sensor detects abnormal data, the hydraulic unloading device can unload the hydraulic motor to prevent the drill rod from breaking.

[0020] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a mining drilling rig with a drilling direction guiding device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of a roller drill bit and a reaming drill bit of a mining drilling rig with a drilling direction guiding device according to the present invention;

[0023] Figure 3 This is a structural schematic diagram of a second guide device of a mining drill with a drilling direction guiding device according to the present invention;

[0024] Figure 4 This is a structural schematic diagram of a first hydraulic cylinder and a second guide rod of a mining drill with a drilling direction guiding device according to the present invention;

[0025] Figure 5 This is a schematic structural diagram of a dust collecting box of a mining drill with a drilling direction guiding device according to the present invention;

[0026] Figure 6 It is a structural schematic diagram of a mining drill scraper driving structure with a drilling direction guiding device according to the present invention.

[0027] Reference numerals

[0028] 1. Support block; 2. First connecting rod; 3. Second hydraulic cylinder; 4. Third hydraulic cylinder; 5. Support frame; 6. Support leg; 7. First motor; 8. First threaded rod; 9. Slide plate; 10. Hydraulic motor; 11. Drill rod; 12. First guide rod; 13. Dust hood; 14. Dust suction pipe; 15. Roller drill bit; 16. Reaming drill bit; 17. Teeth; 18. Slag discharge chute; 19. Rotating ball; 20. First mounting groove; 21. Second guide rod; 22. Guide sleeve; 23. First hydraulic cylinder; 24. Retaining ring; 25. Second mounting groove; 26. First slide block; 27. Dust collection box; 28. Water mist spray system; 29. Second motor; 30. Transmission rod; 31. Turbine; 32. Worm; 33. Second threaded rod; 34. Scraper; 35. Negative pressure fan; 36. Box door. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0030] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] Example 1

[0032] like Figures 1 to 6As shown, the present invention provides a mining drill rig with a drilling direction guide device, comprising a first guide device and a second guide device, which guide the drilling direction of the drill rig. The first guide device includes a first guide rod 12, coaxially arranged with a drill rod 11. A fiber optic torque sensor and guide beads are mounted on the inner wall of the first guide rod 12. The fiber optic torque sensor detects the torque of the drill rod 11 and promptly detects any jamming or overload. The fiber optic torque sensor is connected to a control system, which controls the hydraulic unloading device to unload the drill rod 11 based on the data detected by the fiber optic torque sensor, preventing breakage of the drill rod 11. The guide beads form a rolling support structure. The multi-point support of the guide beads limits radial movement of the drill rod 11, ensuring initial drilling direction accuracy. It also reduces frictional resistance between the drill rod 11 and the inner wall of the first guide rod, enabling smoother rotation and reducing energy loss. The first guide rod 12 is fixedly mounted on a support frame 5, which provides support for the first guide rod 12.

[0033] A first motor 7 is provided on the top of the support frame 5. The first motor 7 is connected to the first threaded rod 8 through a transmission structure. When the first motor 7 is started, it can drive the first threaded rod 8 to rotate through the transmission structure. A second slider is sleeved on the first threaded rod 8. The second slider is provided with a threaded hole that engages with the first threaded rod 8. The second slider is fixedly connected to the slide plate 9. The rotation of the first threaded rod 8 can cause the second slider to drive the slide plate 9 to move along the direction of the first threaded rod 8. A hydraulic motor 10 is installed on the slide plate 9. The hydraulic motor 10 is connected to the drill rod 11. The hydraulic motor 10 can drive the drill rod 11 to rotate. The hydraulic motor 10 is connected to the hydraulic unloading device. When the system pressure exceeds the set value, the unloading relief valve opens and the hydraulic oil returns directly to the oil tank. When the drill rod 11 is stuck or overloaded, the hydraulic unloading device automatically relieves pressure to prevent the hydraulic motor 10 from burning.

[0034] The second guide device includes a second guide rod 21, one end of which is fixedly connected to the rotating ball 19, and the other end of which is mounted with a retaining ring 24. A guide sleeve 22 is sleeved on the second guide rod 21, and the retaining ring 24 can limit the guide sleeve 22 to prevent the guide sleeve 22 from falling off the second guide rod 21. The outer side of the guide sleeve 22 is uniformly distributed, and a first slider 26 is disposed in the slider. The first slider 26 is hinged to the first hydraulic cylinder 23. The first hydraulic cylinder 23 can be extended or retracted in different positions to tilt the second guide rod 21 in different directions.

[0035] The top of the rotating ball 19 is provided with a first mounting slot 20, into which the roller drill bit 15 is threadedly connected, allowing the roller drill bit 15 to change drilling direction as the rotating ball 19 rotates. The rotating ball 19 is connected to the reaming drill bit 16, which is provided with a second mounting slot 25. The top of the second mounting slot 25 engages with the rotating ball 19, allowing the rotating ball 19 to rotate within the second mounting slot 25, thereby changing the direction of the roller drill bit 15. The first hydraulic cylinder 23 is hingedly mounted within the second mounting slot 25. By extending and contracting the first hydraulic cylinder 23 to different degrees at different positions, the second guide rod 21 can be offset in different directions.

[0036] The reamer bit 16 is connected to the drill rod 11. Rotation of the drill rod 11 rotates the reamer bit 16 and the roller drill bit 15, thereby achieving drilling. The reamer bit 16 is uniformly distributed with slag discharge grooves 18 and teeth 17. The slag discharge grooves 18 are spiral-shaped. The teeth 17 include flat teeth and pointed teeth. The teeth 17 are used to expand the hole drilled by the roller drill bit 15. The pointed teeth are used for impact crushing hard rock, while the flat teeth are used for cutting soft rock. The slag discharge grooves 18 discharge broken rock along the grooves, preventing blockage that may affect the drill bit's drilling progress.

[0037] A hinge block is fixedly connected to the middle of the support frame 5. The top of the hinge block is hinged to the second hydraulic cylinder 3. The middle of the hinge block is hinged to the first connecting rod 2. The bottom of the first connecting rod 2 near one end of the hinge block is hinged to the third hydraulic cylinder 4. The second hydraulic cylinder 3 is hinged to the first connecting rod 2. The first connecting rod 2 and the third hydraulic cylinder 4 are both hinged to the support block 1, which is fixedly mounted on the vehicle body. The second hydraulic cylinder 3 can be extended and retracted to adjust the angle between the support frame 5 and the first connecting rod 2. The third hydraulic cylinder 4 can be extended and retracted to adjust the angle between the first connecting rod 2 and the support block 1, thereby adjusting the initial drilling angle of the drilling rig.

[0038] A U-shaped support leg 6 is provided at the bottom of the support frame 5, which can support the support frame 5 and enhance the anti-overturning ability of the drilling rig. A laser positioning device is installed at the center of the bottom of the U-shaped support leg. The laser positioning device is connected to the control system. The control system can control the movement of the vehicle body according to the data detected by the laser positioning device to achieve precise positioning and avoid errors caused by manual positioning. A dust hood 13 is installed at the end of the first guide rod 12. A dust suction pipe 14 is installed on the side wall of the dust hood 13. The dust suction pipe 14 is connected to the dust box 27. The dust hood 13 can be connected to the dust box 27 through the dust suction pipe 14 to collect discharged rock debris, avoid dust and improve the working environment.

[0039] The dust box 27 is connected to a negative pressure blower 35, which creates a negative pressure environment inside the dust box 27, thereby drawing rock debris generated during drilling into the dust box 27 through the dust hood 13 and suction pipe 14. A water mist spray system 28 is installed at the top of the inner wall of the dust box 27. When fine water droplets sprayed by the water mist spray system 28 come into contact with dust particles in the dust box 27, they adhere to the surface of the water droplets through inertial collision, interception, and aggregation, forming larger particle clusters, thereby accelerating dust settling.

[0040] A second motor 29 is mounted inside the side wall of the dust box 27. The second motor 29 is connected to a transmission rod 30, which is mounted with two turbines 31. Both turbines 31 engage with worms 32, which are fixedly connected to a second threaded rod 33. When the second motor 29 is started, the turbines 31 rotate. The turbines 31, in turn, engage with the worms 32, which in turn rotate the worms 32, thereby rotating the second threaded rod 33.

[0041] A scraper 34 is mounted on the second threaded rod 33. The scraper 34 has a threaded hole that mates with the second threaded rod 33. Rotation of the second threaded rod 33 causes the scraper 34 to move in the direction of the second threaded rod 33. Weight sensors are arrayed within the bottom plate of the dust box 27. A door 36 is provided on the side of the dust box 27 facing away from the second motor 29. The weight sensors exchange signals with the control system, which is connected to the second motor 29. When the weight sensor data exceeds a set threshold, the control system activates the second motor 29, causing the scraper 34 to push the deposited rock debris inside the dust box 27 out of the dust box 27 through the door 36.

[0042] The roller drill bit 15 is equipped with an inclination sensor and an azimuth sensor, which exchange signals with the control system. The inclination sensor and azimuth sensor can detect the inclination and azimuth of the roller drill bit 15 and transmit the measured data to the control system. The control system is connected to the first hydraulic cylinder 23, the second hydraulic cylinder 3, the third hydraulic cylinder 4, the first motor 7, and the hydraulic motor 10. The control system can control the second hydraulic cylinder 3, the third hydraulic cylinder 4, the first motor 7, and the hydraulic motor 10. The control system uses the measured inclination and azimuth data to adjust the extension and retraction length of the first hydraulic cylinder 23 at different positions, thereby changing the drilling angle of the roller drill bit 15 and correcting its deviation to avoid changes in drilling direction due to uneven rock properties.

[0043] The calculation formula for the correction angle is as follows:

[0044]

[0045] Among them, Δθ is the correction angle, Δθ v is the difference between the measured inclination angle and the designed inclination angle, Δθh is the azimuth deviation angle.

[0046] The azimuth deviation must first be converted into plane angle difference. The calculation formula is as follows:

[0047]

[0048] Where ΔY is the deviation of the horizontal projection on the Y axis, and ΔX is the deviation of the horizontal projection on the X axis.

[0049] When in use, the mining drill rig with a drilling direction guide device provided by the present invention moves according to data detected by a laser positioning device, adjusting the second and third hydraulic cylinders 3 and 4 to position the roller drill bit 15 at a predetermined angle. The first motor 7 and hydraulic motor 10 are then activated to cause the roller drill bit 15 to begin drilling. During drilling, the guide beads within the first guide rod 12 contact the drill rod 11. The guide beads significantly reduce the resistance to the feed of the drill rod 11 through rolling friction, while also constraining the axial direction of the drill rod 11 and reducing drilling deviation. Based on data measured by the inclination and azimuth sensors, the control system controls the first hydraulic cylinders 23 in different positions to extend and retract to different lengths, causing the second guide rod 21 to deflect to different angles. This corrects the deviation of the roller drill bit 15, ensuring that it drills at the predetermined angle. This prevents lateral extrusion at the interface between soft and hard rock, or stress concentration at fractures, which could disrupt the force balance of the roller drill bit 15 and cause drilling deviation.

[0050] During drilling, the negative pressure fan 35 and the water mist spray system 28 are activated. The negative pressure fan 35 creates a negative pressure environment inside the dust box 27, thereby sucking the rock debris generated during drilling into the dust box 27 through the dust hood 13 and the dust suction pipe 14. When the fine water droplets sprayed by the water mist spray system 28 come into contact with the dust particles in the dust box 27, they adhere to the surface of the water droplets through inertial collision, interception, and coagulation, forming larger particle clusters, thereby accelerating dust settling. When the data detected by the weight sensor inside the bottom plate of the dust box 27 exceeds the set threshold, the control system controls the second motor 29 to start, causing the scraper 34 to push the deposited rock debris inside the dust box 27 out of the dust box 27 through the box door 36.

[0051] When the optical fiber torque sensor detects that the drill rod 11 is stuck or overloaded, the control system controls the hydraulic unloading device to unload the drill rod 11 to prevent it from breaking.

[0052] Therefore, the present invention adopts the above-mentioned mining drilling rig with a drilling direction guiding device, and sets a first direction guiding device and a second direction guiding device to realize the guidance of the drilling direction. The guide beads set on the inner wall of the first guide rod significantly reduce the resistance of the drill rod during feeding through rolling friction, and at the same time constrain the direction of the drill rod axis to reduce drilling deviation. The second direction guiding device corrects the drilling direction of the roller drill bit by changing the extension and contraction amount of the first hydraulic cylinder at different positions, thereby reducing the drilling deviation rate; the second hydraulic cylinder and the third hydraulic cylinder are set to adjust the initial drilling angle of the drilling rig, and the laser positioning device is set to enable the drill bit to be positioned within the specified range. Drilling is carried out at a fixed position to enhance environmental applicability and reduce errors caused by manual positioning; a spiral slag discharge chute is set to reduce drill jamming caused by accumulation of rock debris; a dust hood and a dust box are set to prevent dust, and the water mist spray system in the dust box can make dust particles adhere to the surface of water droplets through inertial collision, interception, and condensation to form larger particle clusters, thereby accelerating dust sedimentation and improving the working environment; a fiber optic torque sensor and a hydraulic unloading device are set, and when the fiber optic torque sensor detects data abnormality, the hydraulic unloading device can unload the hydraulic motor to prevent the drill rod from breaking.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A mining drilling rig with a drilling direction guiding device, characterized in that: It includes a first guiding device and a second guiding device. The first guiding device includes a first guiding rod, and an optical fiber torque sensor and a guide bead are installed on the inner wall of the first guiding rod; the second guiding device includes a second guiding rod, one end of the second guiding rod is fixedly connected to the rotating ball, and the other end thereof is installed with a retaining ring, and a guide sleeve is provided on the second guide rod, and sliding grooves are evenly distributed on the outer side of the guide sleeve, and a first slider is provided in the sliding groove, and the first slider is hinged to the first hydraulic cylinder.

2. A mining drill with a drilling direction guiding device according to claim 1, characterized in that: The first guide rod is fixedly mounted on the support frame, and a first motor is provided on the top of the support frame. The first motor is connected to the first threaded rod through a transmission structure. A second slider is sleeved on the first threaded rod, and a threaded hole is provided on the second slider that engages with the first threaded rod. The second slider is fixedly connected to the slide plate, and a hydraulic motor is installed on the slide plate. The hydraulic motor is connected to the drill rod, and the drill rod is coaxially arranged with the first guide rod, and the hydraulic motor is connected to the hydraulic unloading device.

3. The mining drilling rig with a drilling direction guiding device according to claim 2, characterized in that: A first mounting groove is provided on the top of the rotating ball, the roller drill bit is threadedly connected to the first mounting groove, the rotating ball is connected to the reaming drill bit, the reaming drill bit is provided with a second mounting groove, the top of the second mounting groove cooperates with the rotating ball, and the first hydraulic cylinder is hingedly installed in the second mounting groove.

4. The mining drilling rig with a drilling direction guiding device according to claim 3, characterized in that: The reaming drill bit is connected to the drill rod. The reaming drill bit is provided with slag discharge grooves and teeth. The slag discharge grooves are spiral and the teeth include flat teeth and pointed teeth.

5. The mining drilling rig with a drilling direction guiding device according to claim 4, characterized in that: An articulated block is fixedly connected to the middle of the support frame, the top of the articulated block is hinged to the second hydraulic cylinder, the middle of the articulated block is hinged to the first connecting rod, the bottom of the first connecting rod near one end of the articulated block is hinged to the third hydraulic cylinder, the second hydraulic cylinder is hinged to the first connecting rod, the first connecting rod and the third hydraulic cylinder are both hinged to the support block, and the support block is fixedly mounted on the vehicle body.

6. The mining drilling rig with a drilling direction guiding device according to claim 5, characterized in that: A U-shaped support leg is provided at the bottom of the support frame, and a laser positioning device is installed at the center of the bottom of the U-shaped support leg.

7. The mining drilling rig with a drilling direction guiding device according to claim 6, characterized in that: A dust collecting hood is installed at the end of the first guide rod. The dust collecting hood is a retractable structure. A dust suction pipe is installed on the side wall of the dust collecting hood. The dust suction pipe is connected to the dust collecting box, and the dust collecting box is connected to the negative pressure fan. A water mist spray system is provided on the top of the inner wall of the dust collecting box. A second motor is installed inside the side wall of the dust collecting box. The second motor is connected to the transmission rod. Two turbines are installed on the transmission rod. Both turbines are engaged with the worm. Both worms are fixedly connected to the second threaded rod. A scraper is installed on the second threaded rod. The scraper is provided with a threaded hole that cooperates with the second threaded rod. A weight sensor is provided in an array inside the bottom plate of the dust collecting box, and a box door is provided on the side wall of the dust collecting box away from the second motor.

8. The mining drilling rig with a drilling direction guiding device according to claim 7, characterized in that: An inclination sensor and an azimuth sensor are installed on the cone drill bit. The laser positioning device, the optical fiber torque sensor, the weight sensor, the inclination sensor and the azimuth sensor exchange signals with the control system. The control system is connected with the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the first motor, the hydraulic unloading device, the second motor and the hydraulic motor.

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