Drilling device and drilling method for mining engineering blasting

Abstract

The present invention discloses a drilling device and a drilling method for mining engineering blasting, which belong to the field of mining machinery technology. The drilling device for mining engineering blasting includes a support frame, a power structure for driving the drill rod to rotate and slide is provided above the support frame, a fixing structure for fixing the support frame to the rock wall is provided at the end of the support frame, a support mechanism for supporting the drill rod is provided above the support frame, the support mechanism and the drill rod are coaxially arranged, and a dust reduction spraying mechanism is provided above the support mechanism; the spraying mechanism includes a transmission box, a swing rod is rotatably provided at one end of the transmission box, a swing structure for driving the swing rod to swing is provided inside the transmission box, a connecting plate is provided at one end of the swing rod, and a nozzle is provided on the mounting rod provided at the bottom end of the connecting plate, and the nozzle is connected to a water tank. The use of the drilling device and the drilling method for mining engineering blasting described in the present invention can solve the problem that the existing drilling device has poor drilling effect and is prone to dust pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of mining machinery, in particular to a drilling device and a drilling method for mining engineering blasting. Background Art

[0002] Mine blasting is the main form of mining and tunnel excavation. When blasting a mine, it is necessary to drill a hole on the face, then load the explosives for blasting into the hole, and blast the mine with the explosives. The quality of the drilled hole affects the effect of blasting, so the quality requirements for the drilled hole are relatively high. Existing drilling rigs generally rely on rock drills to drive the drill rod for drilling. Due to the relatively long length of the drill rod, the support effect of the rock drill alone on the drill rod is relatively poor, which can easily cause the drill hole to be crooked and affect the quality of the drill hole. In addition, during the drilling process, the drill rod discharges the drilled ore debris from the drill hole. The discharged debris is relatively dusty, and the blasting environment is relatively closed, causing serious pollution to the blasting environment and affecting the health of the workers.

[0003] Existing patent CN202210521945.2 discloses a static blasting device and blasting method for an integral rock formation, wherein the blasting device includes a mobile carriage, a translation mechanism, a lifting mechanism, a rotary switching mechanism, a drilling mechanism, a purge mechanism, a mixing and filling mechanism, and a control box; the mobile carriage supports the translation mechanism; the translation mechanism adjusts the position of the lifting mechanism; the lifting mechanism drives the rotary switching mechanism to move up and down; and the rotary switching mechanism drives the drilling mechanism, purge mechanism, or mixing and filling mechanism toward the construction position. This static blasting device and blasting method utilizes a rotary switching mechanism to switch between the drilling mechanism, purge mechanism, and mixing and filling mechanism, thereby enabling rapid completion of a full set of static blasting operations at the blasthole, effectively improving the efficiency of static blasting operations. In the above patent, the drilling and purge mechanisms are used to process the drilled hole. However, the dust generated during the drilling and purge processes is relatively large, resulting in poor dust treatment and easily polluting the working environment. Summary of the Invention

[0004] The purpose of the present invention is to provide a drilling device and a drilling method for mining engineering blasting, so as to solve the problem that the existing drilling device has poor drilling effect and easily causes dust pollution.

[0005] To achieve the above-mentioned objectives, the present invention provides a drilling device for blasting in mining engineering, comprising a support seat, a support frame is arranged above the support seat, a power structure for driving the drill rod to rotate and slide is arranged above the support frame, the end of the support frame is provided with a fixing structure for fixing the support frame to the rock wall, a support mechanism for supporting the drill rod is arranged above the support frame, the support mechanism and the drill rod are arranged coaxially, and a dust reduction spraying mechanism is arranged above the support mechanism; the spraying mechanism comprises a transmission box, a swing rod is rotatably arranged at one end of the transmission box, a swing structure for driving the swing rod to swing is arranged inside the transmission box, a connecting plate is provided at one end of the swing rod, a nozzle is provided on the mounting rod provided at the bottom end of the connecting plate, and the nozzle is connected to the water tank.

[0006] Preferably, the power structure includes a rock drill, one end of the drill rod is installed on the rock drill, the rock drill is arranged on a slide, a support frame is provided with a transmission screw that drives the slide to slide on the support frame, a first motor that drives the transmission screw to rotate is provided on the support frame, and a guide rail that guides the sliding of the slide is provided on the support frame; the support frame is connected to the vehicle body through a support rod.

[0007] Preferably, the fixing structure includes a mounting plate, which is slidably arranged inside the support frame, and a number of pins are evenly arranged on the mounting plate. A reciprocating screw is rotatably arranged on the second partition inside the support frame, and a sleeve is provided on the outside of the reciprocating screw, which is threadedly connected to the reciprocating screw, and both ends of the sleeve are respectively connected to the mounting plate through a transmission assembly, and the transmission assembly includes a first connecting rod, one end of the first connecting rod is hinged to the sleeve, and the other end of the first connecting rod is hinged to the second connecting rod and the third connecting rod, the end of the second connecting rod is hinged to the second partition, and the end of the third connecting rod is hinged to the mounting plate; a transmission structure for driving the reciprocating screw to rotate is provided inside the support frame.

[0008] Preferably, the support frame is provided with a first rotating shaft for rotation inside, one end of the first rotating shaft is rotatably connected to the first partition, the first partition is fixed inside the support frame, the first rotating shaft is connected to the transmission structure, the other end of the first rotating shaft is rotatably connected to the inner wall of the mounting frame, the first rotating shaft is provided with a spiral blade for conveying the crushed material, a feed port for allowing the crushed material to enter the support frame is provided above one end of the support frame, a discharge port for allowing the crushed material to be discharged is provided below the other end of the support frame, and a guide plate for guiding the crushed material into the feed port is provided on the upper surface of the support frame.

[0009] The transmission structure of claim 1, wherein the first gear is secured to the first and second gears and is secured to a base with respect to the first and second gears and is adapted to engage with the first and second gears of the transmission.

[0010] Preferably, the support mechanism includes a fixed seat, which is arranged on the support frame, and a fixed plate is provided on the fixed seat, a fixed cylinder for allowing the drill rod to pass through is provided in the middle of the fixed plate, and support components for supporting the drill rod are respectively provided on both sides of the fixed plate. The support component includes sliding rods distributed in a circular array on the fixed cylinder, the sliding rods are slidably connected to the fixed cylinder, and one end of the sliding rod is located inside the fixed cylinder and is rotatably provided with a roller supporting the drill rod, and a limiting plate is provided at one end of the sliding rod located outside the fixed cylinder, a spring is provided between the limiting plate and the fixed cylinder, and the spring is sleeved on the outside of the sliding rod; the sliding rods on the two support assemblies are arranged at intervals, and a sliding structure that drives the sliding rod to slide is provided on the fixed plate.

[0011] Preferably, the sliding structure includes a sliding sleeve, which is symmetrically arranged on both sides of the fixed plate, and a tapered hole is provided inside the sliding sleeve. The end of the sliding rod contacts the inner wall of the tapered hole under the action of a spring, and a number of bidirectional screw rods are arranged in a circular array on the fixed plate. The bidirectional screw rod is rotatably connected to the fixed plate. The two sliding sleeves are respectively located at both ends of the bidirectional screw rod and meshed with the bidirectional screw rod. A rotating seat is rotatably provided on the fixed plate, and the rotating seat is coaxially arranged with the fixed cylinder. A gear ring is provided on the side wall of the rotating seat, and the gear ring is meshed with a driven gear provided on the bidirectional screw rod. A second motor is provided on the fixed seat, and a driving gear meshed with the gear ring is provided on the second motor.

[0012] Preferably, the swing structure includes a lifting seat, guide blocks are provided at both ends of the lifting seat, guide grooves adapted to the guide blocks are provided on the side walls of the transmission box, the guide blocks are located in the guide grooves and are slidably connected to the guide grooves, and a lifting assembly for driving the lifting seat to rise and fall is provided in the transmission box; a through hole penetrating the lifting seat is provided on the lifting seat, a second limiting groove is provided on the side wall of the through hole, a second slider is slidably provided in the second limiting groove, a second connecting shaft is rotatably provided on the second slider, the second connecting shaft is connected to the swing rod through the second rotating plate, the second rotating plate is rotatably connected to the second connecting shaft, the second rotating plate is fixedly connected to the swing rod, and the swing rod is rotatably connected to the side wall of the transmission box.

[0013] Preferably, the lifting assembly includes a first limiting groove and a first slider, the first limiting groove is slidingly provided with a first slider, the first limiting groove is provided in the through hole and is parallel to the second limiting groove, the first connecting shaft is rotatably provided on the first slider, the first connecting shaft is connected to the third rotating shaft through the first rotating plate, the first rotating plate is rotatably connected to the first connecting shaft, the first rotating plate is fixedly connected to the third rotating shaft, the third rotating shaft is rotatably connected to the side wall of the transmission box, and a motor that drives the third rotating shaft to rotate is provided on the outside of the transmission box, the swing rod is coaxial with the third rotating shaft, and the length of the second rotating plate is greater than that of the first rotating plate.

[0014] The drilling method based on the above-mentioned drilling device for mining engineering blasting includes the following steps:

[0015] S1. The second motor drives the driving gear to rotate, which drives the driven gear to rotate through the ring gear. The driven gear drives the bidirectional screw to rotate, which drives the two sliding sleeves to slide away from each other. The sliding sleeve pushes the sliding rod to slide into the fixed sleeve through the inclined surface of the tapered hole. The spring is compressed, and the roller contacts the surface of the drill rod to support the drill rod.

[0016] S2. Move the vehicle body to the rock wall, adjust the height of the support frame using the support rods, align the drill rod with the position to be drilled, and place the support frame against the rock wall;

[0017] S3: The motor reverses, the second ratchet engages with the second ratchet teeth, the motor drives the second ratchet to rotate via the second rotating shaft, the second ratchet drives the third bevel gear to rotate via the second ratchet teeth, the third bevel gear drives the reciprocating screw to rotate via the fourth bevel gear, the reciprocating screw drives the sleeve to slide outward via the thread transmission, the sleeve drives the first connecting rod to rotate, the first connecting rod drives the second connecting rod and the third connecting rod to rotate relative to each other, the mounting plate slides outward along the support frame, the mounting plate inserts screws into the rock wall to fix the support frame;

[0018] S4. Start the rock drill and the first motor. The rock drill drives the drill rod to rotate and impact. The first motor drives the slide to slide on the support frame via the transmission screw. The slide drives the rock drill to slide. The rock drill drives the drill rod to drill forward. The crushed material drilled by the drill bit enters the support frame through the guide plate and the feed port.

[0019] S5, the motor rotates forward, and the motor drives the second bevel gear to rotate through the first ratchet and the first ratchet tooth. The third bevel gear rotates relative to the second ratchet. The second bevel gear drives the first rotating shaft to rotate through the first bevel gear. The first rotating shaft discharges the crushed materials through the discharge port of the support frame through the spiral blade;

[0020] S6. The third motor drives the third rotating shaft to rotate, the third rotating shaft drives the first rotating plate to rotate, the first rotating plate drives the first slider to move through the first connecting shaft, the first slider slides along the first limiting groove under the action of the first limiting groove, the first slider drives the lifting seat to slide up and down along the guide groove, the lifting seat drives the second slider to slide in the second limiting groove through the second limiting groove, the second slider drives the second rotating plate to rotate through the second connecting shaft, the second rotating plate drives the swing rod to rotate. Since the length of the second rotating plate is greater than that of the first rotating plate, the second rotating plate and the swing rod can only swing back and forth, the swing rod drives the sprinkler head to swing through the connecting plate and the mounting rod, and the sprinkler head sprays dust above the drill rod.

[0021] The advantages and positive effects of the drilling device and drilling method for mining engineering blasting of the present invention are:

[0022] 1. The present invention provides a fixed structure at the front end of the support frame, which fixes the support frame to the rock wall through the fixed structure, thereby improving the stability of the support frame. The fixed structure and the spiral blades inside the support frame are driven by the same transmission structure, which improves the compactness of the structure.

[0023] 2. A support mechanism is provided on the support frame to support the drill rod, which can meet the support needs of drill rods of different diameters and improve the stability of the drill rod during drilling, which is beneficial to improving the drilling effect.

[0024] 3. The spraying mechanism installed above the support mechanism sprays dust at the drill hole, which helps to reduce the spread of dust and improve the blasting environment. The swing structure drives the nozzle to swing back and forth, improving the effect of spraying and dust reduction.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0027] Figure 2 It is a front view structural schematic diagram of an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the side structure of an embodiment of the present invention;

[0029] Figure 4An enlarged view of the support mechanism and the spraying mechanism of an embodiment of the present invention;

[0030] Figure 5 is a schematic diagram of the cross-sectional structure of an embodiment of the present invention;

[0031] Figure 6 For attachment Figure 5 Middle A enlarged view;

[0032] Figure 7 Schematic diagram of the transmission structure of an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of a top view of a transmission structure according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the cross-sectional structure of the support mechanism according to an embodiment of the present invention;

[0035] Figure 10 Schematic diagram of the swing structure of an embodiment of the present invention;

[0036] Figure 11 This is a schematic diagram of a top view of a swing structure according to an embodiment of the present invention;

[0037] Figure 12 Schematic diagram of the cross-sectional structure of the spraying mechanism according to an embodiment of the present invention.

[0038] Reference numerals

[0039] 1. Support seat; 11. Car body; 12. Support rod; 13. Support frame; 14. Guide plate; 15. Feed port; 16. Rock drill; 17. Drill rod; 18. First motor; 19. Drive screw; 110. Slide; 111. Discharge port; 112. First rotating shaft; 113. Spiral blade; 114. First bevel gear; 115. Second rotating shaft; 116. Second bevel gear; 117. Third bevel gear; 118. Fourth bevel gear; 119. Reciprocating screw; 120. First ratchet; 121. First ratchet; 122. Second ratchet; 123. First partition; 124. Second partition; 125. Sleeve; 126. First connecting rod; 127. Second connecting rod; 128. Third connecting rod; 129. Mounting plate; 130. Pin

[0040] 2. Support mechanism; 21. Fixed seat; 22. Fixed plate; 23. Fixed cylinder; 24. Sliding sleeve; 25. Rotating seat; 26. Ring gear; 27. Driven gear; 28. Bidirectional screw; 29. ​​Second motor; 210. Driving gear; 211. Sliding rod; 212. Roller; 213. Spring;

[0041] 3. Spraying mechanism; 31. Top plate; 32. Transmission box; 33. Third motor; 34. Swing rod; 35. Connecting plate; 36. Mounting rod; 37. Spray head; 38. Lifting seat; 39. Guide groove; 310. Third rotating shaft; 311. First rotating plate; 312. First connecting shaft; 313. First slider; 314. Second slider; 315. Second connecting shaft; 316. Second rotating plate; 317. First limiting groove; 318. Second limiting groove; 319. Guide block. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0043] 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.

[0044] Example

[0045] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 As shown. A drilling device for mining engineering blasting includes a support base 1, which is used to support the entire device. The support base 1 includes a vehicle body 11, which is used to drive the device to move. The vehicle body 11 can adopt an existing structure and model as needed. A support frame 13 is provided above the support base 1, and the vehicle body 11 is connected to the support frame 13 via a support rod 12. The support rod 12 can be a hydraulic rod for adjusting the height of the support frame 13 to perform drilling at different heights.

[0046] A power structure is located above the support frame 13, driving a drill rod 17 to rotate and slide. This power structure drives the drill rod 17 to rotate and slide, thereby drilling a hole in the rock wall. The power structure includes a rock drill 16, which can be a conventional hydraulic rock drill 16 as needed. One end of the drill rod 17 is mounted on the rock drill 16, which drives the drill rod 17 to rotate and drill a hole in the rock wall. The rock drill 16 is fixed to a slide 110. A drive screw 19 is provided on the support frame 13, driving the slide 110 to slide on the support frame 13. Both ends of the drive screw 19 are rotatably connected to the support frame 13 via bearing blocks. The slide 110 is provided with threaded holes that allow the drive screw 19 to pass through and mate with the drive screw 19. The drive screw 19 drives the slide 110 to slide on the support frame 13 through the threaded holes. A first motor 18 is fixed to the support frame 13, driving the drive screw 19 to rotate. A guide rail is fixedly mounted on the support frame 13 to guide the movement of the slide 110. The guide rail is parallel to the drive screw 19. The slide 110 is provided with a groove that fits the guide rail. The guide rail is located within the groove and is slidably connected to the groove. The first motor 18 drives the slide 110 via the drive screw 19. The slide 110, in turn, drives the drill rod 17 through the rock drill 16 to perform the drilling operation.

[0047] like Figure 6 As shown. The end of the support frame 13 is provided with a fixing structure for fixing the support frame 13 on the rock wall. The fixing structure includes a mounting plate 129, and the mounting plate 129 is slidably arranged inside the support frame 13. The mounting plate 129 is a rectangular plate, and the interior of the end of the support frame 13 is a rectangular cavity. The size of the mounting plate 129 is slightly smaller than the size of the rectangular cavity, so that the mounting plate 129 only slides along the rectangular cavity without rotating. A number of pins 130 are evenly fixed on the mounting plate 129, and the pins 130 are used to fix the mounting plate 129 on the rock wall, thereby fixing the support frame 13. A second partition 124 is fixedly provided inside the support frame 13, and a reciprocating screw 119 is rotatably provided on the second partition 124 through a bearing. A sleeve 125 is provided on the outside of the reciprocating screw 119, and the sleeve 125 is threadedly connected to the reciprocating screw 119. When the reciprocating screw rod 119 rotates in the same direction, the sleeve 125 can slide back and forth on the reciprocating screw rod 119 .

[0048] The ends of the sleeve 125 are connected to the mounting plate 129 via a transmission assembly. The transmission assembly includes a first connecting rod 126, one end of which is hinged to the sleeve 125, and the other end of the first connecting rod 126 is hinged to a second connecting rod 127 and a third connecting rod 128. The second connecting rod 127 and the third connecting rod 128 are respectively located on either side of the first connecting rod 126. The end of the second connecting rod 127 is hinged to the second partition 124, and the end of the third connecting rod 128 is hinged to the mounting plate 129. When the reciprocating screw 119 drives the sleeve 125 to slide, the sleeve 125 drives the first connecting rod 126 to rotate. The first connecting rod 126 drives the second connecting rod 127 and the third connecting rod 128 to rotate through the hinge point, thereby driving the mounting plate 129 to slide, thereby enabling the pin 130 to be inserted and removed from the rock wall. The support frame 13 is internally provided with a transmission structure that drives the reciprocating screw 119 to rotate.

[0049] A first rotating shaft 112 is rotatably mounted within the support frame 13. One end of the first rotating shaft 112 is rotatably connected to a first partition 123 via a bearing, and the first partition 123 is fixed within the support frame 13. The first rotating shaft 112 is connected to a transmission structure, which is disposed within a relatively closed cavity defined by the first partition 123, the second partition 124, and the support frame 13. The other end of the first rotating shaft 112 is rotatably connected to the inner wall of the mounting frame via a bearing. A spiral blade 113 for conveying crushed material is fixedly mounted on the first rotating shaft 112. A feed port 15 for allowing crushed material to enter the support frame 13 is located above one end of the support frame 13, and a discharge port 111 for allowing crushed material to be discharged is located below the other end of the support frame 13. A guide plate 14 is provided on the upper surface of the support frame 13 to guide the crushed material into the feed port 15. A groove is provided in the middle of the guide plate 14, allowing the crushed material to smoothly pass through the guide plate 14 and enter the feed port 15. The crushed material is then discharged from the discharge port 111 by the spiral blade 113, and the crushed material drilled by the drill rod 17 is collected. The inner cavity of the support frame 13, in which the spiral blade 113 is provided, is a cylindrical cavity that is compatible with the spiral blade 113.

[0050] like Figure 7 、 Figure 8As shown in the figure, the transmission structure includes a second rotating shaft 115, which is rotatably connected to the side wall of the mounting frame via a bearing. A motor is fixed to the mounting frame to drive the second rotating shaft 115. A second bevel gear 116 and a third bevel gear 117 are mounted on the second rotating shaft 115. The second bevel gear 116 is rotatably mounted on the outside of a first ratchet 120 via a bearing. The first ratchet 120 is fixed to the second rotating shaft 115. The first ratchet 120 is located outside the second bevel gear 116. A first ratchet tooth 121 is mounted on the end face of the second bevel gear 116, which meshes with the first ratchet 120. The first ratchet tooth 121 is rotatably connected to the second bevel gear 116 via a pin. A torsion spring is mounted on the pin to ensure contact between the first ratchet tooth 121 and the first ratchet 120. The third bevel gear 117 is rotatably mounted on the outside of a second ratchet 122 via a bearing. The second ratchet 122 is fixed to the second rotating shaft 115. The second ratchet 122 is located outside the third bevel gear 117. The end face of the third bevel gear 117 is provided with a second ratchet tooth that meshes with the second ratchet wheel 122. The second ratchet tooth and the third bevel gear 117 are rotatably connected via a pin. The pin is provided with a torsion spring that ensures contact between the second ratchet tooth and the second ratchet wheel 122. Forward rotation of the motor drives the second bevel gear 116 via the first ratchet wheel 120 and the first ratchet tooth 121. Reverse rotation of the motor drives the third bevel gear 117 via the second ratchet wheel 122 and the second ratchet wheel 122. Active rotation of the second and third bevel gears 116, 117 is achieved by changing the direction of motor rotation. The second bevel gear 116 meshes with the first bevel gear 114 fixed to the end of the first rotating shaft 112. The second bevel gear 116 drives the first rotating shaft 112 via the first bevel gear 114, thus enabling the conveyance of crushed materials. The third bevel gear 117 is engaged with the fourth bevel gear 118 fixed to the end of the reciprocating screw 119 . The third bevel gear 117 and the fourth bevel gear 118 are engaged with each other to fix the support frame 13 on the rock wall.

[0051] like Figure 9As shown. A support mechanism 2 for supporting the drill rod 17 is provided above the support frame 13. The support mechanism 2 improves the stability of the drill rod 17 during drilling. The support mechanism 2 includes a fixed seat 21, which is fixedly mounted on the support frame 13. The fixed seat 21 is located behind the feed port 15. A vertical fixed plate 22 is fixedly mounted on the fixed seat 21, and a fixed cylinder 23 is fixedly mounted in the middle of the fixed plate 22, through which the drill rod 17 passes. Support assemblies for supporting the drill rod 17 are provided on both sides of the fixed plate 22. The support assembly includes sliding rods 211 distributed in a circular array on the fixed cylinder 23. In this embodiment, the same support assembly includes four sliding rods 211, which are slidably connected to the fixed cylinder 23. A roller 212 that supports the drill rod 17 is rotatably mounted on one end of the sliding rod 211 located inside the fixed cylinder 23. A limit plate is fixedly mounted on one end of the sliding rod 211 located outside the fixed cylinder 23, and a spring 213 is provided between the limit plate and the fixed cylinder 23. The spring 213 is sleeved on the outside of the slide rod 211, and the two ends of the spring 213 are fixedly connected to the limit plate and the fixing cylinder 23 respectively. The spring 213 applies an outward elastic force to the slide rod 211. The slide rods 211 on the two support assemblies are arranged at intervals, which is conducive to improving the support effect of the drill rod 17.

[0052] The fixed plate 22 is provided with a sliding structure that drives the slide rod 211 to slide. The sliding structure includes a sleeve 24, which is symmetrically arranged on both sides of the fixed plate 22. The sleeve 24 is coaxially arranged with the fixed cylinder 23. A tapered hole is provided inside the sleeve 24. The end of the slide rod 211 contacts the inner wall of the tapered hole under the action of the spring 213. The sleeve 24 pushes the slide rod 211 to slide on the fixed cylinder 23 through the inner wall of the tapered hole, thereby achieving centering support for drill rods 17 of different thicknesses. A plurality of bidirectional screw rods 28 are provided in a circular array on the fixed plate 22. In this embodiment, four bidirectional screw rods 28 are provided. The bidirectional screw rod 28 is rotatably connected to the fixed plate 22 through bearings. The two sleeves 24 are respectively located at both ends of the bidirectional screw rod 28 and mesh with the bidirectional screw rod 28. The rotation of the bidirectional screw rod 28 drives the two sleeves 24 to slide relative to or away from each other. A groove is provided on the fixed plate 22, and a rotating seat 25 is rotatably provided in the groove. The rotating seat 25 is rotatably connected to the groove via a bearing. The rotating seat 25 is coaxially arranged with the fixed cylinder 23. A ring gear 26 is fixedly provided on the side wall of the rotating seat 25, and the ring gear 26 meshes with a driven gear 27 fixedly provided on the bidirectional screw 28. A second motor 29 is provided on the fixed seat 21, and a driving gear 210 is fixedly provided on the output shaft of the second motor 29, which meshes with the ring gear 26. The second motor 29 drives the ring gear 26 to rotate via the driving gear 210, and the ring gear 26 drives the bidirectional screw 28 to rotate via the driven gear 27. The bidirectional screw 28 drives the sliding sleeve 24 to slide, and then drives the sliding rod 211 to slide, so that the roller 212 contacts the drill rod 17, thereby supporting the drill rod 17.

[0053] A dust suppression spray mechanism 3 is located above the support mechanism 2. This spray mechanism 3 is used to spray dust at the drilled hole, reducing dust dispersion and contamination. The spray mechanism 3 includes a transmission case 32, secured to the top of the fixed plate 22 via a top plate 31. A swing lever 34 is pivotally mounted on one end of the transmission case 32, and a swing mechanism is located within the transmission case 32 to drive the swing lever 34. A connecting plate 35 is fixed to one end of the swing lever 34. A nozzle 37 is mounted on a mounting rod 36 fixed to the bottom of the connecting plate 35 and connected to the water tank.

[0054] like Figure 10 、 Figure 11 、 Figure 12 As shown in the figure, the swing structure includes a lifting base 38, with guide blocks 319 fixedly mounted at both ends. Guide slots 39 are provided on the sidewalls of the transmission case 32, matching the guide blocks 319. The guide blocks 319 are located within the guide slots 39 and slidably connected thereto. A through hole is provided through the lifting base 38, with a second limiting slot 318 provided on the sidewalls of the through hole. A second slider 314 is slidably mounted within the second limiting slot 318. The second slider 314 slides only along the second limiting slot 318 and does not rotate. A second connecting shaft 315 is rotatably mounted on the second slider 314 via a bearing. The second connecting shaft 315 is connected to the swing lever 34 via a second rotating plate 316. The second rotating plate 316 is rotatably connected to the second connecting shaft 315 via a bearing, and the second rotating plate 316 is fixedly connected to the swing lever 34. The swing lever 34 is rotatably connected to the sidewalls of the transmission case 32 via a bearing.

[0055] A lifting assembly that drives the lifting seat 38 up and down is disposed within the transmission case 32. The lifting assembly includes a first limiting groove 317 and a first slider 313. The first slider 313 is slidably disposed within the first limiting groove 317. The first limiting groove 317 is disposed within the through hole and is parallel to the second limiting groove 318. The first slider 313 only slides within the first limiting groove 317 and does not rotate. The first slider 313 is rotatably disposed with a first connecting shaft 312 via a bearing. The first connecting shaft 312 is connected to the third rotating shaft 310 via a first rotating plate 311. The first rotating plate 311 is rotatably connected to the first connecting shaft 312 via a bearing, and the first rotating plate 311 is fixedly connected to the third rotating shaft 310. The third rotating shaft 310 is rotatably connected to the side wall of the transmission case 32 via a bearing. A motor that drives the third rotating shaft 310 to rotate is disposed on the outside of the transmission case 32. The swing rod 34 is coaxial with the third rotating shaft 310, and the length of the second rotating plate 316 is greater than that of the first rotating plate 311. In this way, when the second rotating shaft 115 drives the first rotating plate 311 to rotate, the lifting seat 38 slides back and forth up and down. The lifting seat 38 drives the third rotating shaft 310 to swing back and forth through the second slider 314 and the second rotating plate 316, thereby realizing the swing spraying of the nozzle 37 and improving the spraying and dust reduction effect.

[0056] The drilling method based on the above-mentioned drilling device for mining engineering blasting includes the following steps:

[0057] S1, the second motor 29 drives the driving gear 210 to rotate, the driving gear 210 drives the driven gear 27 to rotate through the ring gear 26, the driven gear 27 drives the bidirectional screw 28 to rotate, the bidirectional screw 28 drives the two sliding sleeves 24 to slide away from each other, the sliding sleeve 24 pushes the sliding rod 211 to slide into the fixed sleeve through the inclined surface of the tapered hole, the spring 213 is compressed, and the roller 212 contacts the surface of the drill rod 17 to support the drill rod 17.

[0058] S2. Move the vehicle body 11 to the rock wall, adjust the height of the support frame 13 by the support rod 12, align the drill rod 17 with the position to be drilled, and place the support frame 13 against the rock wall.

[0059] S3. The motor reverses, the second ratchet 122 engages with the second ratchet, the motor drives the second ratchet 122 to rotate through the second rotating shaft 115, the second ratchet 122 drives the third bevel gear 117 to rotate through the second ratchet, the third bevel gear 117 drives the reciprocating screw 119 to rotate through the fourth bevel gear 118, the reciprocating screw 119 drives the sleeve 125 to slide outward through threaded transmission, the sleeve 125 drives the first connecting rod 126 to rotate, the first connecting rod 126 drives the second connecting rod 127 and the third connecting rod 128 to rotate relative to each other, the mounting plate 129 slides outward along the support frame 13, the mounting plate 129 inserts the screws into the rock wall to fix the support frame 13.

[0060] S4. Start the rock drill 16 and the first motor 18. The rock drill 16 drives the drill rod 17 to rotate and impact. The first motor 18 drives the slide 110 to slide on the support frame 13 through the transmission screw 19. The slide 110 drives the rock drill 16 to slide. The rock drill 16 drives the drill rod 17 to drill forward. The crushed materials drilled out by the drill bit enter the support frame 13 through the guide plate 14 and the feed port 15.

[0061] S5. The motor rotates forward, and the motor drives the second bevel gear 116 to rotate through the first ratchet 120 and the first ratchet 121. The third bevel gear 117 and the second ratchet 122 rotate relative to each other. The second bevel gear 116 drives the first rotating shaft 112 to rotate through the first bevel gear 114. The first rotating shaft 112 discharges the crushed materials from the support frame 13 through the discharge port 111 through the spiral blade 113.

[0062] S6. The third motor 33 drives the third rotating shaft 310 to rotate. The third rotating shaft 310 drives the first rotating plate 311 to rotate. The first rotating plate 311 drives the first slider 313 to move via the first connecting shaft 312. The first slider 313 slides along the first limiting groove 317 under the action of the first limiting groove 317. The first slider 313 drives the lifting seat 38 to slide up and down along the guide groove 39. The lifting seat 38 drives the second slider 314 to slide within the second limiting groove 318 via the second limiting groove 318. The second slider 314 drives the second rotating plate 316 to rotate via the second connecting shaft 315. The second rotating plate 316 drives the swinging rod 34 to rotate. Because the second rotating plate 316 is longer than the first rotating plate 311, the second rotating plate 316 and the swinging rod 34 can only swing back and forth. The swinging rod 34 drives the spray head 37 to swing via the connecting plate 35 and the mounting rod 36. The spray head 37 sprays dust above the drill rod 17.

[0063] S7. After drilling is completed, the first motor 18 rotates in reverse, and the drill rod 17 is pulled out of the drill hole. The motor rotates in reverse, driving the third bevel gear 117 to rotate via the second ratchet 122 and the second ratchet teeth. The third bevel gear 117 rotates the reciprocating screw 119 via the fourth bevel gear 118. The reciprocating screw 119 drives the sleeve 125 to slide inward. The sleeve 125 drives the mounting plate 129 to slide inward via the first connecting rod 126, the second connecting rod 127, and the third connecting rod 128. The mounting plate 129 drives the pin 130 to slide, and the pin 130 is pulled out of the rock wall.

[0064] Therefore, the use of the drilling device and drilling method for mining engineering blasting described in the present invention can solve the problems of poor drilling effect and easy dust pollution caused by existing drilling devices.

[0065] 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 drilling device for mining engineering blasting, characterized by: The invention comprises a support base, which includes a vehicle body, a support frame provided above the support base, a power structure for driving the drill rod to rotate and slide provided above the support frame, an end of the support frame provided with a fixing structure for fixing the support frame to the rock wall, a support mechanism for supporting the drill rod provided above the support frame, the support mechanism and the drill rod are coaxially arranged, and a dust reduction spraying mechanism is provided above the support mechanism; the spraying mechanism comprises a transmission box, a swing rod is rotatably provided at one end of the transmission box, a swing structure for driving the swing rod to swing is provided inside the transmission box, a connecting plate is provided at one end of the swing rod, a nozzle is provided on a mounting rod provided at the bottom end of the connecting plate, and the nozzle is connected to a water tank; The fixing structure includes a mounting plate, which is slidably arranged inside the support frame, and a number of pins are evenly arranged on the mounting plate. A reciprocating screw is rotatably arranged on the second partition inside the support frame, and a sleeve is provided on the outside of the reciprocating screw, which is threadably connected to the reciprocating screw, and both ends of the sleeve are connected to the mounting plate through a transmission assembly. The transmission assembly includes a first connecting rod, one end of the first connecting rod is hinged to the sleeve, and the other end of the first connecting rod is hinged to the second connecting rod and the third connecting rod, the end of the second connecting rod is hinged to the second partition, and the end of the third connecting rod is hinged to the mounting plate, and a transmission structure that drives the reciprocating screw to rotate is provided inside the support frame; The support frame is internally rotatably provided with a first rotating shaft, one end of the first rotating shaft is rotatably connected to the first partition, the first partition is fixed inside the support frame, the first rotating shaft is connected to the transmission structure, the other end of the first rotating shaft is rotatably connected to the inner wall of the mounting frame, a spiral blade for conveying crushed material is provided on the first rotating shaft, a feed port for allowing crushed material to enter the support frame is provided above one end of the support frame, a discharge port for allowing crushed material to be discharged is provided below the other end of the support frame, and a guide plate for guiding crushed material into the feed port is provided on the upper surface of the support frame; The transmission structure includes a second rotating shaft, the second rotating shaft is rotatably connected to the side wall of the mounting frame, and the mounting frame is provided with a motor that drives the second rotating shaft to rotate, the second rotating shaft is provided with a second bevel gear and a third bevel gear, the second bevel gear is rotated sleeved on the outside of the first ratchet, the first ratchet is fixedly arranged on the second rotating shaft, the first ratchet is located outside the second bevel gear, the end surface of the second bevel gear is provided with a first ratchet tooth meshing with the first ratchet, the third bevel gear rotates sleeve on the outside of the second ratchet, the second ratchet is fixedly arranged on the second rotating shaft, the second ratchet is located outside the third bevel gear, and the end surface of the third bevel gear is provided with a second ratchet tooth meshing with the second ratchet. When the motor rotates forward, the second bevel gear rotates through the first ratchet and the first ratchet teeth, and when the motor rotates reversely, the third bevel gear rotates through the second ratchet and the second ratchet. The second bevel gear is meshed with the first bevel gear arranged at the end head of the first rotating shaft, and the third bevel gear is meshed with the fourth bevel gear arranged at the end head of the reciprocating screw rod.

2. A drilling device for mining engineering blasting according to claim 1, characterized in that: The power structure includes a rock drill, one end of the drill rod is installed on the rock drill, the rock drill is set on the slide, the support frame is provided with a transmission screw that drives the slide to slide on the support frame, the support frame is provided with a first motor that drives the transmission screw to rotate, and the support frame is provided with a guide rail that guides the sliding of the slide; the support frame is connected to the vehicle body through a support rod.

3. A drilling device for mining engineering blasting according to claim 2, characterized in that: The support mechanism includes a fixed seat, which is arranged on a support frame, a fixed plate is provided on the fixed seat, a fixed cylinder for allowing the drill rod to pass through is provided in the middle of the fixed plate, and support components for supporting the drill rod are respectively provided on both sides of the fixed plate. The support component includes sliding rods distributed in a circumferential array on the fixed cylinder, the sliding rods are slidably connected to the fixed cylinder, and one end of the sliding rod is located inside the fixed cylinder and is rotatably provided with a roller supporting the drill rod. A limiting plate is provided at one end of the sliding rod located outside the fixed cylinder, and a spring is provided between the limiting plate and the fixed cylinder, and the spring is sleeved on the outside of the sliding rod; the sliding rods on the two support assemblies are arranged at intervals, and a sliding structure that drives the sliding rod to slide is provided on the fixed plate.

4. A drilling device for mining engineering blasting according to claim 3, characterized in that: The sliding structure includes a sliding sleeve, which is symmetrically arranged on both sides of the fixed plate, and a tapered hole is provided inside the sliding sleeve. The end of the sliding rod contacts the inner wall of the tapered hole under the action of a spring, and a plurality of bidirectional screw rods are arranged in a circumferential array on the fixed plate. The bidirectional screw rod is rotatably connected to the fixed plate. The two sliding sleeves are respectively located at both ends of the bidirectional screw rod and meshed with the bidirectional screw rod. A rotating seat is rotatably provided on the fixed plate, and the rotating seat is coaxially arranged with the fixed cylinder. A gear ring is provided on the side wall of the rotating seat, and the gear ring is meshed with a driven gear provided on the bidirectional screw rod. A second motor is provided on the fixed seat, and a driving gear meshed with the gear ring is provided on the second motor.

5. The drilling device for mining engineering blasting according to claim 4, characterized in that: The swing structure includes a lifting seat, guide blocks are provided at both ends of the lifting seat, guide grooves adapted to the guide blocks are provided on the side walls of the transmission box, the guide blocks are located in the guide grooves and are slidably connected to the guide grooves, and a lifting assembly for driving the lifting seat to rise and fall is provided in the transmission box; a through hole penetrating the lifting seat is provided on the lifting seat, a second limiting groove is provided on the side wall of the through hole, a second slider is slidably provided in the second limiting groove, a second connecting shaft is rotatably provided on the second slider, the second connecting shaft is connected to the swing rod through the second rotating plate, the second rotating plate is rotatably connected to the second connecting shaft, the second rotating plate is fixedly connected to the swing rod, and the swing rod is rotatably connected to the side wall of the transmission box.

6. A drilling device for mining engineering blasting according to claim 5, characterized in that: The lifting assembly includes a first limiting groove and a first slider, the first limiting groove is slidingly provided with a first slider, the first limiting groove is provided in the through hole and is parallel to the second limiting groove, the first connecting shaft is rotatably provided on the first slider, the first connecting shaft is connected to the third rotating shaft through the first rotating plate, the first rotating plate is rotatably connected to the first connecting shaft, the first rotating plate is fixedly connected to the third rotating shaft, the third rotating shaft is rotatably connected to the side wall of the transmission box, and a motor that drives the third rotating shaft to rotate is provided on the outside of the transmission box, the swing rod is coaxial with the third rotating shaft, and the length of the second rotating plate is greater than that of the first rotating plate.

7. A drilling method based on a drilling device for mining engineering blasting according to claim 6, characterized in that: The following steps are involved: S1. The second motor drives the driving gear to rotate, which drives the driven gear to rotate through the ring gear. The driven gear drives the bidirectional screw to rotate, which drives the two sliding sleeves to slide away from each other. The sliding sleeve pushes the sliding rod to slide into the fixed sleeve through the inclined surface of the tapered hole. The spring is compressed, and the roller contacts the surface of the drill rod to support the drill rod. S2. Move the vehicle body to the rock wall, adjust the height of the support frame using the support rods, align the drill rod with the position to be drilled, and place the support frame against the rock wall; S3: The motor reverses, the second ratchet engages with the second ratchet teeth, the motor drives the second ratchet to rotate via the second rotating shaft, the second ratchet drives the third bevel gear to rotate via the second ratchet teeth, the third bevel gear drives the reciprocating screw to rotate via the fourth bevel gear, the reciprocating screw drives the sleeve to slide outward via the thread transmission, the sleeve drives the first connecting rod to rotate, the first connecting rod drives the second connecting rod and the third connecting rod to rotate relative to each other, the mounting plate slides outward along the support frame, the mounting plate inserts screws into the rock wall to fix the support frame; S4. Start the rock drill and the first motor. The rock drill drives the drill rod to rotate and impact. The first motor drives the slide to slide on the support frame via the transmission screw. The slide drives the rock drill to slide. The rock drill drives the drill rod to drill forward. The crushed material drilled by the drill bit enters the support frame through the guide plate and the feed port. S5, the motor rotates forward, and the motor drives the second bevel gear to rotate through the first ratchet and the first ratchet tooth. The third bevel gear rotates relative to the second ratchet. The second bevel gear drives the first rotating shaft to rotate through the first bevel gear. The first rotating shaft discharges the crushed materials through the discharge port of the support frame through the spiral blade; S6. The third motor drives the third rotating shaft to rotate, the third rotating shaft drives the first rotating plate to rotate, the first rotating plate drives the first slider to move through the first connecting shaft, the first slider slides along the first limiting groove under the action of the first limiting groove, the first slider drives the lifting seat to slide up and down along the guide groove, the lifting seat drives the second slider to slide in the second limiting groove through the second limiting groove, the second slider drives the second rotating plate to rotate through the second connecting shaft, the second rotating plate drives the swing rod to rotate. Since the length of the second rotating plate is greater than that of the first rotating plate, the second rotating plate and the swing rod can only swing back and forth, the swing rod drives the sprinkler head to swing through the connecting plate and the mounting rod, and the sprinkler head sprays dust above the drill rod.

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