Directional reaming drilling device for coal mine

Abstract

The invention relates to the technical field of coal mining, in particular to a coal mine directional reaming drilling device which comprises an advancing crawler belt, a base is fixedly mounted on the upper side of the advancing crawler belt, a drilling assembly is fixedly mounted on the upper side of the base, a platform is slidably mounted on the upper side of the drilling assembly, and a mounting plate is fixedly mounted on the upper side of the platform. A driving hole is formed in one side of the mounting plate, and a rotating assembly is rotationally mounted in the driving hole; the reaming motor rotates reversely to drive the drill bit to turn over, when the driving frame turns over, the corresponding driving rod drives the corresponding driving frame to move, debris such as rock debris, mud and sandy soil clamped to the drill bit part is loosened and vibrated to be scattered, a clamping part is made to slightly displace, and the drill clamping part is assisted to be pulled out; and manual auxiliary knocking is avoided, the knocking vibration efficiency during drill jamming is enhanced, the drill bit can be conveniently and rapidly pulled out, and the construction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining, in particular to a coal mine directional hole expansion drilling device. Background Art

[0002] Coal mining refers to the process of extracting coal resources from underground coal seams through various technical means. This process is usually divided into two types: underground mining and open-pit mining. When mining underground, coal seam exploration and geological surveys are required in the early stage of the mining area. In the exploration stage of coal mines, directional expansion drilling can effectively help to conduct a more comprehensive exploration of coal seams. Through directional drilling, coal seam information at different locations and directions can be obtained, thereby providing more accurate geological data for subsequent mining. When conducting directional expansion in coal mines, directional expansion drilling equipment is needed.

[0003] In the prior art, when using a directional reaming drilling device, it is first necessary to transport the relevant equipment and components required for the reaming operation to the predetermined operation area, and install the drill rod and drill bit of the directional drilling on the drilling rig for splicing. Subsequently, the drilling rig is started to drill the target position. However, during the drilling process, especially when crossing faults or complex geological areas, the drill bit is often stuck due to the instability of the hole wall or the accumulation of rock debris, and it is impossible to continue drilling. When pulling out the drill bit, it is usually necessary to manually use tools to periodically tap the drill bit part and cooperate with a series of operations such as drill bit reversal to assist in pulling out the drill bit. Since the drill bit is long and high, the manual working space area underground is limited. When assisting in tapping the drill bit, it is not easy to swing the auxiliary tool for vibration operation, which results in a lot of time required to pull out the drill bit. This situation not only affects the progress of the operation, but also significantly reduces the construction efficiency of reaming drilling. Summary of the invention

[0004] The purpose of the present invention is to provide a coal mine directional hole expansion drilling device to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is: a directional hole expansion drilling device for coal mines, comprising a traveling crawler, a base is fixedly installed on the upper side of the traveling crawler, a drilling assembly is fixedly installed on the upper side of the base, a platform is slidably installed on the upper side of the drilling assembly, a mounting plate is fixedly installed on the upper side of the platform, a driving hole is opened on one side of the mounting plate, a rotating assembly is rotatably installed in the driving hole, and a drilling mechanism is fixedly installed on one side of the driving assembly; The drilling mechanism comprises a driving frame, a flange is fixedly mounted on one end of the driving frame, a plurality of strengthening bolts are fixedly mounted on the surface of the flange, the flange is fixedly connected to the rotating assembly through the plurality of strengthening bolts, a flange is fixedly mounted on one end of the driving frame, a plurality of strengthening bolts are screwed on the surface of the flange, a conveying rod is fixedly mounted on the surface of the plurality of strengthening bolts, a hole reaming assembly is fixedly mounted on one end of the conveying rod, a drill bit is fixedly mounted on one side of the hole reaming assembly, and a power assembly is fixedly mounted on the upper side of the platform; The vibration component includes a reinforcement frame, which is fixedly installed on the upper side of the platform. A plurality of installation openings are provided on the side of the reinforcement frame, and a sealing plate is fixedly installed in each of the plurality of installation openings. A knocking spring is fixedly installed on one side of each of the plurality of sealing plates, and a same knocking rod is fixedly installed on the other end of each of the plurality of knocking springs. A plurality of rolling grooves are provided on the surfaces of the plurality of knocking rods, and knocking balls are rotatably installed in each of the plurality of rolling grooves. The surfaces of the plurality of knocking balls are attached to the surface of the driving frame. An arc groove is provided on the upper side of the platform, and a fixed disk is fixedly installed in the arc groove. An inner gear ring is fixedly installed on one side of the fixed disk. A plurality of sliding openings are provided on one side of the fixed disk, and a driving unit is slidably installed in each of the plurality of sliding openings. A power component is fixedly installed on one side of the driving unit.

[0006] Preferably, the driving unit comprises a plurality of reciprocating rods, and the plurality of reciprocating rods are correspondingly slidably mounted in the sliding opening, a lever is fixedly mounted on one side of the reciprocating rod, a compression hole is opened on one side of the plurality of knocking rods, a sliding rod is slidably mounted in the compression hole, a squeezing ball is fixedly mounted on one end of the sliding rod, a return spring is fixedly mounted on the other end of the sliding rod, the other end of the return spring is fixedly mounted in the compression hole, a limiting tube is fixedly mounted on one end of the knocking rod, the surface of the sliding rod is slidably mounted in the limiting tube, a limiting plate is fixedly mounted on one side of the sealing plate, a plurality of avoidance openings are opened on one side of the limiting plate, and a plurality of blocks are fixedly mounted on one side of the limiting plate.

[0007] Preferably, the driving unit also includes multiple secondary gears, which are rotatably mounted on one side of the fixed disk, meshed with the inner gear ring, and fixedly mounted with a driving rod on one side of the multiple secondary gears, and a driving frame is fixedly mounted on the other end of the reciprocating rod, and the driving rod is slidably mounted in the driving frame.

[0008] Preferably, the power assembly includes a toothed disc, which is fixedly mounted on one side of an inner gear ring, a first-level bracket is fixedly mounted on the upper side of the platform, a first-level rotating hole is opened on one side of the first-level bracket, a transmission rotating rod is rotatably mounted in the first-level rotating hole, a fourth-stage gear is fixedly mounted on the surface of the transmission rotating rod, the fourth-stage gear is meshed with the toothed disc, a second-level bracket is fixedly mounted on the upper side of the platform, a second-level rotating hole is opened on one side of the second-level bracket, a driving rotating rod is rotatably mounted on one side of the second-level rotating hole, a third-stage gear is fixedly mounted on the surface of the driving rotating rod, an outer gear ring is fixedly mounted on the surface of the driving frame, the third-stage gear is meshed with the outer gear ring, and a one-way transmission unit is fixedly mounted on one end of the transmission rotating rod.

[0009] Preferably, the one-way transmission unit includes a pawl, which is rotatably mounted on one end of a transmission rotating rod, a fixing plate is fixedly mounted on one end of the transmission rotating rod, a secondary spring is fixedly mounted on the upper side of the fixing plate, the other end of the secondary spring is fixedly connected to the lower side of the pawl, and a ratchet groove is provided at one end of the driving rotating rod.

[0010] Preferably, a stabilizing groove is provided on the inner wall of the reinforcing frame, a load-bearing block is fixedly installed in the stabilizing groove, a plurality of grooves are provided on the upper side of the load-bearing block, and auxiliary balls are rotatably installed in the plurality of grooves.

[0011] Preferably, the drilling mechanism includes a reaming head, which is fixedly mounted on one end of the conveying rod, and a plurality of slide grooves are provided on the surface of the reaming head, and reaming plates are slidably mounted in the plurality of slide grooves, one side of the reaming plate is configured to be serrated, and an adjustment unit is fixedly mounted on one side of the plurality of reaming plates.

[0012] Preferably, the adjusting unit comprises a plurality of racks, and the plurality of racks are rotatably mounted on one side of the plurality of reaming plates respectively; a plurality of transmission rods are rotatably mounted on one side of the reaming head; a primary gear is fixedly mounted on one end of the plurality of transmission rods; the primary gears are meshed with corresponding racks; a mounting hole is provided at one end of the conveying rod; a connecting rod is rotatably mounted in the mounting hole; an internal tooth groove is provided at one end of the connecting rod; the primary gears are meshed with the internal tooth groove; a positioning plate is fixedly mounted on the other end of the connecting rod; a positioning groove is provided on one side of the conveying rod; a positioning block is fixedly mounted on one side of the positioning plate; and a hexagonal groove is provided on one side of the driving frame.

[0013] Preferably, the rotating assembly includes a driving rod, which is rotatably mounted in the driving hole, a hole reaming motor is fixedly mounted on one side of the mounting plate, and one end of the driving rod is coaxially fixedly connected to an output shaft of the hole reaming motor.

[0014] Preferably, the drilling assembly includes a hydraulic lift, which is fixedly mounted on the upper side of the base, a mobile platform is fixedly mounted on the output end of the hydraulic lift, a drilling motor for easy driving is fixedly mounted on one side of the mobile platform, and the platform is slidably mounted on the upper side of the mobile platform.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the drill bit to reverse by the reverse rotation of the hole reaming motor. When the driving frame reverses, the outer gear ring installed on the surface of the driving frame drives the three-stage gear to rotate, the three-stage gear drives the power component to move, the power component drives the inner gear ring to rotate, the inner gear ring drives multiple secondary gears to rotate, the multiple secondary gears drive the corresponding driving rods to move, the corresponding driving rods drive the corresponding driving frames to move, the corresponding driving frames drive the reciprocating rods to move, the corresponding reciprocating rods drive the corresponding shifting rods to move, so that the multiple shifting rods move away from each other, the shifting rods drive the squeezing balls to move upward, the squeezing balls drive the knocking rods to move upward and start to squeeze the knocking springs, when the squeezing balls move to fit with the stopper, the inclined surface of the stopper starts to squeeze the squeezing balls, so that the squeezing balls move toward the reciprocating rods and start to squeeze the reset springs, and as the shifting rods continue to move, the squeezing balls move toward the reciprocating rods and start to squeeze the reset springs. When the drill bit is pushed upward and fits the lower side of the stop block, the squeezing ball shrinks and detaches from the surface of the lever, and the knocking rod is popped downward by the elastic force of the knocking spring. At the same time, the reset spring drives the limit tube and the squeezing ball to reset, and the knocking rod drives the knocking ball to knock the driving frame, thereby vibrating the knocking frame. The driving frame is periodically knocked by multiple knocking balls, so that the driving frame vibrates periodically, and the vibration is transmitted to the areas where the drill is prone to get stuck, such as the conveying rod, the reaming head, and the drill bit, so that these parts vibrate, loosening the rock chips, mud, sand and other debris stuck in the drill bit, shaking them away, and causing the stuck parts to move slightly, so as to assist in pulling out the stuck drill part and make it work again, avoiding manual auxiliary knocking, enhancing the knocking vibration efficiency when the drill is stuck, facilitating the rapid pulling out of the drill bit, and improving the construction efficiency.

[0016] 2. In the present invention, during the hole expansion process, the reinforcement frame provides positioning for the driving frame, and the load-bearing blocks and auxiliary balls inside the reinforcement frame are used to appropriately bear the load on the driving frame. Then, three knocking rods and multiple knocking balls are used to appropriately squeeze the driving frame through the knocking springs, and multi-directional forces are applied to the surface of the driving frame to assist the driving frame in drilling, thereby improving the directional stability of the drill bit during the drilling process and preventing the drill bit from deviating and causing the drill to get stuck.

[0017] 3. The present invention rotates the positioning block, which drives the positioning plate to rotate, which drives the connecting rod to rotate, which drives multiple primary gears to rotate, which drives corresponding racks to move, which drives corresponding reaming plates to move, so that multiple reaming plates are moved closer to or farther away from each other, and the radius of the reaming hole is flexibly and adaptively adjusted to prevent the problem of drill sticking caused by the mismatch between the reaming radius and the established reaming radius, thereby reducing the probability of drill sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the explosion structure of the drilling mechanism in the present invention; Figure 3 It is a schematic diagram of the cross-section structure of the conveying rod in the present invention; Figure 4 yes Figure 3 A schematic diagram of the structure enlargement of the A region in the middle; Figure 5 It is a schematic diagram of a partial exploded structure of the hole expansion assembly in the present invention; Figure 6 It is a schematic diagram of the cross-section structure of the reinforcement frame in the present invention; Figure 7 It is a structural schematic diagram of the vibration component in the present invention; Figure 8 yes Figure 7 A schematic diagram of the structure of the middle B region; Fig. 9 It is a schematic diagram of the internal gear ring and its related structures in the present invention; Fig.10 It is a structural schematic diagram of the power assembly in the present invention; Fig.11 It is a schematic diagram of the cutaway structure of the knocking rod in the present invention; Fig.12 It is a schematic diagram of the cutaway structure of the mobile station in the present invention.

[0019] Description of reference numerals: 1. Traveling crawler; 2. Base; 3. Hydraulic lift; 4. Mobile platform; 5. Drilling motor; 6. Platform; 7. Hole expansion motor; 8. Mounting plate; 9. Strengthening frame; 10. Conveying rod; 11. Hole expansion head; 12. Drill bit; 13. Driving rod; 14. Driving frame; 15. Flange; 16. Positioning plate; 17. Strengthening bolt; 18. Hole expansion plate; 19. Connecting rod; 20. Rack; 21. Primary gear; 22. Transmission rod; 23. Slide; 24. Sealing plate; 25. Limiting plate; 26. Block; 27. Knocking spring; 28. Knocking rod; 29. ​​Hexagonal groove ; 30. Positioning block; 31. Inner gear ring; 32. Load-bearing block; 33. Auxiliary ball; 34. Knocking ball; 35. Limiting tube; 36. Squeeze ball; 37. Push rod; 38. Reciprocating rod; 39. Driving frame; 40. Secondary gear; 41. Driving rod; 42. Toothed disc; 43. Primary bracket; 44. Secondary bracket; 45. Ratchet groove; 46. Third-stage gear; 47. Driving rotating rod; 48. Ratchet; 49. Fourth-stage gear; 50. Secondary spring; 51. Transmission rotating rod; 52. Fixed plate; 53. Reset spring; 54. Sliding rod; 55. Fixed disc; 56. Outer gear ring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0021] Figure 1 to Figure 12 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1 to Figure 12 The present invention is further described.

[0022] like Figure 1 to Figure 12 As shown, the directional hole expansion drilling device for coal mines comprises a traveling crawler 1, a base 2 is fixedly installed on the upper side of the traveling crawler 1, a drilling assembly is fixedly installed on the upper side of the base 2, a platform 6 is slidably installed on the upper side of the drilling assembly, a mounting plate 8 is fixedly installed on the upper side of the platform 6, a driving hole is opened on one side of the mounting plate 8, a rotating assembly is rotatably installed in the driving hole, and a drilling mechanism is fixedly installed on one side of the driving assembly; The drilling mechanism includes a driving frame 14, a flange 15 is fixedly installed at one end of the driving frame 14, a plurality of strengthening bolts 17 are fixedly installed on the surface of the flange 15, the flange 15 is fixedly connected to the rotating assembly through the plurality of strengthening bolts 17, a flange 15 is fixedly installed at one end of the driving frame 14, a plurality of strengthening bolts 17 are screwed and installed on the surface of the flange 15, a conveying rod 10 is fixedly installed on the surface of the plurality of strengthening bolts 17, a hole expansion assembly is fixedly installed at one end of the conveying rod 10, a drill bit 12 is fixedly installed on one side of the hole expansion assembly, and a power assembly is fixedly installed on the upper side of the platform 6; The vibration component includes a reinforcement frame 9, which is fixedly installed on the upper side of the platform 6. A plurality of installation openings are provided on the side of the reinforcement frame 9, in which sealing plates 24 are fixedly installed, one side of the plurality of sealing plates 24 is fixedly installed with a knocking spring 27, the other end of the plurality of knocking springs 27 is fixedly installed with the same knocking rod 28, the surfaces of the plurality of knocking rods 28 are provided with a plurality of rolling grooves, knocking balls 34 are rotatably installed in the plurality of rolling grooves, the surfaces of the plurality of knocking balls 34 are attached to the surface of the driving frame 14, an arc groove is provided on the upper side of the platform 6, a fixed disk 55 is fixedly installed in the arc groove, an inner gear ring 31 is fixedly installed on one side of the fixed disk 55, a plurality of sliding openings are provided on one side of the fixed disk 55, a driving unit is slidably installed in the plurality of sliding openings, and a power component is fixedly installed on one side of the driving unit.

[0023] By means of the above structure, the traveling crawler 1 is a prior art, which can meet the extreme road movement in the mine. A drilling assembly for drilling with an auxiliary drill bit 12 is installed on its upper side through the base 2. The drilling mechanism installed on its upper side through the platform 6 includes a driving frame 14, a conveying rod 10, a reaming head 11, and a drill bit 12. The driving frame 14 and the conveying rod 10 are coaxially fixedly connected through a flange 15 and a plurality of strengthening bolts 17 in the prior art. The other end of the driving frame 14 also uses a flange 15 and a plurality of strengthening bolts 17 to be coaxially fixedly connected with the rotating assembly. A auger piece is provided on the surface of the conveying rod 10, which can be used to slurry mixture generated during the reaming process. Conveying, the drill bit 12 is convenient for drilling holes in coal mines, and the reaming component can reame the drilled holes. A stabilizing hole is provided on one side of the reinforcing frame 9 in the vibration component, and the driving frame 14 passes through the stabilizing hole and is rotatably connected to the stabilizing hole through a bearing. The upper side and the left and right sides of the reinforcing frame 9 are provided with installation openings of the same size, and a sealing plate 24 is fixedly installed in each installation opening. A knocking rod 28 is connected and installed on one side of the sealing plate 24 through three knocking springs 27. The number of connecting springs can be increased or decreased according to actual conditions, and the number of knocking balls 34 installed on the lower side of the knocking rod 28 can be increased or decreased according to actual conditions, and the surface of the knocking rod 28 fits in the installation opening.

[0024] Furthermore, the driving unit includes a plurality of reciprocating rods 38, and the plurality of reciprocating rods 38 are correspondingly slidably installed in the sliding mouth, a lever 37 is fixedly installed on one side of the reciprocating rod 38, a compression hole is opened on one side of the plurality of knocking rods 28, a sliding rod 54 is slidably installed in the compression hole, a squeezing ball 36 is fixedly installed on one end of the sliding rod 54, a return spring 53 is fixedly installed on the other end of the sliding rod 54, and the other end of the return spring 53 is fixedly installed in the compression hole, a limiting tube 35 is fixedly installed on one end of the knocking rod 28, the surface of the sliding rod 54 is slidably installed in the limiting tube 35, a limiting plate 25 is fixedly installed on one side of the sealing plate 24, a plurality of avoidance openings are opened on one side of the limiting plate 25, and a plurality of stoppers 26 are fixedly installed on one side of the limiting plate 25.

[0025] By means of the above structure, three sliding openings are provided on the surface of the fixed plate 55, and a reciprocating rod 38 is slidably installed in each sliding opening. A lever 37 is installed at one end of the reciprocating rod 38, and a conical guide head is provided at one end of the lever 37, which can facilitate the guidance of the squeezing ball 36. The limiting tube 35 installed at one end of the knocking rod 28 can limit the squeezing ball 36 and the stability of the sliding rod 54, thereby improving the movement stability of the sliding rod 54 and the squeezing ball 36. Three avoidance openings corresponding to the three sliding openings are provided on one side of the limiting plate 25 to provide movement space for the knocking rod 28. Blocks 26 are installed on the upper side and left and right sides of the limiting plate 25, and a guide sheet is provided on one side of the block 26 to facilitate the guidance of the squeezing ball 36.

[0026] Furthermore, the driving unit also includes multiple secondary gears 40, which are rotatably installed on one side of the fixed disk 55, and are meshed with the inner gear ring 31. A driving rod 41 is fixedly installed on one side of the multiple secondary gears 40, and a driving frame 39 is fixedly installed on the other end of the reciprocating rod 38, and the driving rod 41 is slidably installed in the driving frame 39.

[0027] By means of the above structure, three secondary gears 40 are installed on one side of the fixed plate 55, and each secondary gear 40 is meshed with the inner gear ring 31. A driving rod 41 is fixedly installed on the surface of each secondary gear 40 to facilitate driving the reciprocating frame. When the driving rod 41 is driven by the secondary gear 40 to move, it will drive the driving frame 39 to reciprocate in the direction of the sliding mouth, thereby driving the reciprocating rod 38 to reciprocate.

[0028] Furthermore, the power assembly includes a gear disk 42, which is fixedly mounted on one side of the inner gear ring 31, a first-level bracket 43 is fixedly mounted on the upper side of the platform 6, a first-level rotating hole is opened on one side of the first-level bracket 43, a transmission rotating rod 51 is rotatably mounted in the first-level rotating hole, a fourth-stage gear 49 is fixedly mounted on the surface of the transmission rotating rod 51, and the fourth-stage gear 49 is meshed with the gear disk 42, a second-level bracket 44 is fixedly mounted on the upper side of the platform 6, a second-level rotating hole is opened on one side of the second-level bracket 44, a driving rotating rod 47 is rotatably mounted on one side of the second-level rotating hole, a third-stage gear 46 is fixedly mounted on the surface of the driving rotating rod 47, an outer gear ring 56 is fixedly mounted on the surface of the driving frame 14, the third-stage gear 46 is meshed with the outer gear ring 56, and a one-way transmission unit is fixedly mounted on one end of the transmission rotating rod 51.

[0029] By means of the above structure, the radius of the toothed disc 42 is consistent with the radius of the inner gear ring 31, the first-stage bracket 43 and the second-stage bracket 44 are the same size, the size of the third-stage gear 46 is larger than that of the fourth-stage gear 49, and when the third-stage gear 46 drives the fourth-stage gear 49 to rotate through the driving rotating rod 47 and the transmission rotating rod 51, the rotation speed of the fourth-stage gear 49 is higher than that of the third-stage gear 46, which is convenient for increasing the knocking frequency of the knocking ball 34.

[0030] Furthermore, the one-way transmission unit includes a pawl 48, which is rotatably mounted on one end of a transmission rotating rod 51, a fixing plate 52 is fixedly mounted on one end of the transmission rotating rod 51, a secondary spring 50 is fixedly mounted on the upper side of the fixing plate 52, and the other end of the secondary spring 50 is fixedly connected to the lower side of the pawl 48, and a ratchet groove 45 is opened at one end of the driving rotating rod 47.

[0031] With the above structure, the pawl 48 is located in the ratchet groove 45 and cooperates with the secondary spring 50, so that the drill bit 12 does not transmit power when drilling in the forward direction. When the drill bit 12 is reversed for drilling, the pawl 48 is engaged in the ratchet groove 45, thereby providing power output.

[0032] Furthermore, a stabilizing groove is provided on the inner wall of the reinforcing frame 9, in which a load-bearing block 32 is fixedly installed, and a plurality of grooves are provided on the upper side of the load-bearing block 32, in which auxiliary balls 33 are rotatably installed.

[0033] With the above structure, the load-bearing block 32 and the auxiliary ball 33 can assist the lower side of the driving frame 14 in bearing weight, thereby improving the stability of the driving frame 14 during rotation.

[0034] Furthermore, the drilling mechanism includes a reaming head 11, which is fixedly mounted on one end of the conveying rod 10. A plurality of slide grooves 23 are provided on the surface of the reaming head 11. Reaming plates 18 are slidably mounted in the plurality of slide grooves 23. One side of the reaming plate 18 is set to be serrated, and an adjustment unit is fixedly mounted on one side of the plurality of reaming plates 18.

[0035] With the above structure, the expansion plate 18 is consistent with the expansion plate 18 in the prior art, and one side is configured to be serrated to facilitate expansion of the hole wall.

[0036] Further, the adjustment unit includes a plurality of racks 20, and the plurality of racks 20 are rotatably installed on one side of the plurality of reaming plates 18 respectively. A plurality of transmission rods 22 are rotatably installed on one side of the reaming head 11, and a first-stage gear 21 is fixedly installed on one end of the plurality of transmission rods 22, and the plurality of first-stage gears 21 are meshed with the corresponding racks 20. A mounting hole is provided at one end of the conveying rod 10, and a connecting rod 19 is rotatably installed in the mounting hole. An inner tooth groove is provided at one end of the connecting rod 19, and the plurality of first-stage gears 21 are meshed with the inner tooth groove. A positioning plate 16 is fixedly installed on the other end of the connecting rod 19, a positioning groove is provided on one side of the conveying rod 10, a positioning block 30 is fixedly installed on one side of the positioning plate 16, and a hexagonal groove 29 is provided on one side of the driving frame 14.

[0037] With the above structure, the conveying rod 10 is a hollow structure, and a connecting rod 19 is rotatably installed through the mounting hole. A positioning block 30 is installed at one end of the connecting rod 19 through a positioning plate 16. The positioning block 30 can be fitted in the hexagonal groove 29 of the driving frame 14 for limiting. An internal tooth groove is opened at the other end, and four primary gears 21 are meshingly installed in the internal tooth groove. When the connecting rod 19 rotates, the four primary gears 21 are driven to rotate. The four primary gears 21 drive the corresponding expansion plate 18 to move through the corresponding rack 20, so that the expansion plate 18 can be contracted or expanded.

[0038] Furthermore, the rotating assembly includes a driving rod 13, which is rotatably mounted in the driving hole. A hole expansion motor 7 is fixedly mounted on one side of the mounting plate 8, and one end of the driving rod 13 is coaxially fixedly connected to the output shaft of the hole expansion motor 7.

[0039] With the above structure, the hole expansion motor 7 is a servo motor that can rotate forward and reverse.

[0040] Furthermore, the drilling assembly includes a hydraulic lift 3, which is fixedly installed on the upper side of the base 2. A mobile platform 4 is fixedly installed on the output end of the hydraulic lift 3, a drilling motor 5 for easy driving is fixedly installed on one side of the mobile platform 4, and a platform 6 is slidably installed on the upper side of the mobile platform 4.

[0041] With the above structure, the hydraulic lift 3 in the present invention is the prior art, which includes the hydraulic oil, liquid supply components, etc. in the hydraulic lift 3, and is a complete hydraulic system, which will not be described in detail here. Three moving grooves are opened on the upper side of the moving platform 4, in which a threaded rod is rotatably installed, and a drilling block is screwed on the surface of the threaded rod, and the drilling block is screwed to the threaded rod. One end of the threaded rod is coaxially fixedly connected to the drilling motor 5, and the upper side of the drilling block is fixedly connected to the lower side of the platform 6. The drilling motor 5 is a servo motor, and the threaded rod is driven to rotate by the output end of the drilling motor 5, and the threaded rod drives the drilling block to move, thereby driving the platform 6 to move.

[0042] Working principle: When the device is in use, first manually rotate the positioning block 30 according to the radius of the hole to be expanded, the positioning block 30 drives the positioning plate 16 to rotate, the positioning plate 16 drives the connecting rod 19 to rotate, the connecting rod 19 drives multiple primary gears 21 to rotate, the multiple primary gears 21 drive the corresponding racks 20 to move, and the multiple racks 20 drive the corresponding expansion plates 18 to move, so that the multiple expansion plates 18 are close to or away from each other, and the radius of the expansion is adjusted to meet the radius of the expansion, and then the position of the positioning block 30 is kept unchanged, the positioning block 30 is inserted into the hexagonal groove 29 for limiting, and the conveying rod is fixed by the flange 15 and multiple strengthening bolts 17. 10 is installed at one end of the driving frame 14, and then the traveling crawler 1 is controlled to move the device to the area where the coal mine needs to be directional expanded, and the hydraulic lift 3 is started to lift the mobile platform 4, and the mobile platform 4 drives the platform 6 to lift, and the drill bit 12 is adjusted to a specified height position, and the position is adjusted, and the expansion motor 7 is started, and the output end of the expansion motor 7 drives the driving rod 13 to rotate the rod, and the driving rod 13 drives the driving frame 14 to rotate, and the driving frame 14 drives the conveying rod 10 to rotate, and the conveying rod 10 drives the expansion head 11 to rotate, and the expansion head 11 rotates the drill bit 12, and at the same time, the drilling motor 5 is started to drive the platform 6 to expand the target area of ​​the coal mine; During the hole expansion process, the reinforcement frame 9 provides positioning for the driving frame 14, and the load-bearing block 32 and the auxiliary ball 33 inside the reinforcement frame 9 are used to properly bear the load on the driving frame 14. Then, the three knocking rods 28 and multiple knocking balls 34 are used to properly squeeze the driving frame 14 through the knocking spring 27, and multi-directional forces are applied to the surface of the driving frame 14 to assist the driving frame 14 in drilling and improve the stability during the drilling process.

[0043] When the drill is stuck during the reaming process, the forward drilling work of the reaming motor 7 is stopped immediately, and the reaming motor 7 is started to rotate in the reverse direction, driving the drill bit 12 to reverse. When the driving frame 14 is reversed, the outer gear ring 56 installed on the surface drives the third-stage gear 46 to rotate, and the third-stage gear 46 drives the driving rotating rod 47 to rotate. The driving rotating rod 47 drives the ratchet 48 to move through the ratchet groove 45, and the ratchet 48 drives the transmission rotating rod 51 to rotate, and the transmission rotating rod 51 drives the fourth-stage gear 49 to rotate, and the fourth-stage gear 49 drives the toothed disc 42 to rotate, and the toothed disc 42 drives the inner gear ring The inner gear ring 31 rotates, the inner gear ring 31 drives the multiple secondary gears 40 to rotate, the multiple secondary gears 40 drive the corresponding driving rods 41 to move, the corresponding driving rods 41 drive the corresponding driving frames 39 to move, the corresponding driving frames 39 drive the reciprocating rods 38 to move, the corresponding reciprocating rods 38 drive the corresponding levers 37 to move, so that the multiple levers 37 move away from each other, the levers 37 drive the squeezing balls 36 to move upward, the squeezing balls 36 drive the knocking rods 28 to move upward and start squeezing the knocking springs 27, and when the squeezing balls 36 move to fit with the stopper 26, the inclined surface of the stopper 26 starts to move. The squeezing ball 36 is squeezed to make the squeezing ball 36 move toward the reciprocating rod 38 and begin to squeeze the reset spring 53. As the lever 37 continues to move upward and fits against the lower side of the stopper 26, the squeezing ball 36 contracts and detaches from the surface of the lever 37, and the knocking rod 28 is ejected downward by the elastic force of the knocking spring 27. At the same time, the reset spring 53 drives the limit tube 35 and the squeezing ball 36 to reset. The knocking rod 28 drives the knocking ball 34 to knock the driving frame 14, generating a vibration on the knocking frame. As the lever 37 is reset, the lever 37 first starts to squeeze the squeezing ball 36, so that the squeezing ball 36 moves toward the reciprocating rod 38 and begins to squeeze the reset spring 53. 6 contracts and moves to the lower side of the squeezing ball 36 to complete the reset, thereby performing secondary vibration. The driving frame 14 is periodically knocked by multiple knocking balls 34 to make the driving frame 14 vibrate periodically, and the vibration is transmitted to the areas where the drill is easily stuck, such as the conveying rod 10, the reaming head 11, and the drill bit 12, so that these parts vibrate, loosening the debris such as rock cuttings, mud, sand and soil stuck in the drill bit 12, shaking them apart, and causing the stuck parts to move slightly, so as to assist in pulling out the stuck drill part and make it work again, avoiding manual auxiliary knocking and improving the convenience of using the device.

[0044] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A directional hole expansion drilling device for a coal mine, comprising a traveling crawler (1), characterized in that: A base (2) is fixedly mounted on the upper side of the traveling crawler (1), a drilling assembly is fixedly mounted on the upper side of the base (2), a platform (6) is slidably mounted on the upper side of the drilling assembly, a mounting plate (8) is fixedly mounted on the upper side of the platform (6), a driving hole is opened on one side of the mounting plate (8), a rotating assembly is rotatably mounted in the driving hole, and a drilling mechanism is fixedly mounted on one side of the driving assembly; The drilling mechanism comprises a driving frame (14), one end of the driving frame (14) is fixedly mounted with a flange (15), the surface of the flange (15) is fixedly mounted with a plurality of reinforcing bolts (17), the flange (15) is fixedly connected to the rotating assembly via the plurality of reinforcing bolts (17), one end of the driving frame (14) is fixedly mounted with a flange (15), the surface of the flange (15) is threadedly mounted with a plurality of reinforcing bolts (17), a conveying rod (10) is fixedly mounted on the surface of the plurality of reinforcing bolts (17), one end of the conveying rod (10) is fixedly mounted with a hole reaming assembly, one side of the hole reaming assembly is fixedly mounted with a drill bit (12), and the upper side of the platform (6) is fixedly mounted with a power assembly; The vibration component comprises a reinforcement frame (9), wherein the reinforcement frame (9) is fixedly mounted on the upper side of the platform (6), a plurality of mounting openings are provided on the side of the reinforcement frame (9), a sealing plate (24) is fixedly mounted in each of the plurality of mounting openings, a knocking spring (27) is fixedly mounted on one side of each of the plurality of sealing plates (24), a same knocking rod (28) is fixedly mounted on the other end of each of the plurality of knocking springs (27), a plurality of rolling grooves are provided on the surface of each of the plurality of knocking rods (28), a knocking ball (34) is rotatably mounted in each of the plurality of rolling grooves, a plurality of surfaces of the knocking ball (34) are attached to the surface of the driving frame (14), an arc groove is provided on the upper side of the platform (6), a fixed disk (55) is fixedly mounted in the arc groove, an inner gear ring (31) is fixedly mounted on one side of the fixed disk (55), a plurality of sliding openings are provided on one side of the fixed disk (55), a driving unit is slidably mounted in each of the plurality of sliding openings, and a power component is fixedly mounted on one side of the driving unit.

2. The directional expansion drilling device for coal mines according to claim 1, characterized in that: The driving unit comprises a plurality of reciprocating rods (38), each of the plurality of reciprocating rods (38) being slidably mounted in a sliding opening, a lever (37) being fixedly mounted on one side of the reciprocating rod (38), a compression hole being provided on one side of the plurality of knocking rods (28), a sliding rod (54) being slidably mounted in the compression hole, a squeezing ball (36) being fixedly mounted on one end of the sliding rod (54), a return spring (53) being fixedly mounted on the other end of the sliding rod (54), the other end of the return spring (53) being fixedly mounted in the compression hole, a limiting tube (35) being fixedly mounted on one end of the knocking rod (28), a surface of the sliding rod (54) being slidably mounted in the limiting tube (35), a limiting plate (25) being fixedly mounted on one side of the sealing plate (24), a plurality of avoidance openings being provided on one side of the limiting plate (25), and a plurality of stoppers (26) being fixedly mounted on one side of the limiting plate (25).

3. The coal mine directional hole expansion drilling device according to claim 2, characterized in that: The driving unit further comprises a plurality of secondary gears (40), each of the plurality of secondary gears (40) being rotatably mounted on one side of the fixed disk (55), each of the plurality of secondary gears (40) being meshed with the inner gear ring (31), each of the plurality of secondary gears (40) being fixedly mounted with a driving rod (41) on one side of the plurality of secondary gears (40), a driving frame (39) being fixedly mounted on the other end of the reciprocating rod (38), and the driving rod (41) being slidably mounted in the driving frame (39).

4. The coal mine directional hole expansion drilling device according to claim 1, characterized in that: The power assembly comprises a toothed disc (42), the toothed disc (42) being fixedly mounted on one side of an inner gear ring (31); a first-stage bracket (43) being fixedly mounted on the upper side of the platform (6); a first-stage rotating hole being provided on one side of the first-stage bracket (43); a transmission rotating rod (51) being rotatably mounted in the first-stage rotating hole; a fourth-stage gear (49) being fixedly mounted on the surface of the transmission rotating rod (51); the fourth-stage gear (49) being meshed with the toothed disc (42); a second-stage bracket (44) being fixedly mounted on the upper side of the platform (6); a second-stage rotating hole being provided on one side of the second-stage bracket (44); a driving rotating rod (47) being rotatably mounted on one side of the second-stage rotating hole; a third-stage gear (46) being fixedly mounted on the surface of the driving rotating rod (47); an outer gear ring (56) being fixedly mounted on the surface of the driving frame (14); the third-stage gear (46) being meshed with the outer gear ring (56); and a one-way transmission unit being fixedly mounted on one end of the transmission rotating rod (51).

5. The coal mine directional hole expansion drilling device according to claim 4, characterized in that: The one-way transmission unit comprises a ratchet (48), wherein the ratchet (48) is rotatably mounted on one end of a transmission rotating rod (51), a fixing plate (52) is fixedly mounted on one end of the transmission rotating rod (51), a secondary spring (50) is fixedly mounted on the upper side of the fixing plate (52), and the other end of the secondary spring (50) is fixedly connected to the lower side of the ratchet (48), and a ratchet groove (45) is provided at one end of the driving rotating rod (47).

6. The coal mine directional hole expansion drilling device according to claim 1, characterized in that: The inner wall of the reinforcing frame (9) is provided with a stabilizing groove, a load-bearing block (32) is fixedly installed in the stabilizing groove, a plurality of grooves are provided on the upper side of the load-bearing block (32), and auxiliary balls (33) are rotatably installed in each of the plurality of grooves.

7. The coal mine directional hole expansion drilling device according to claim 1, characterized in that: The drilling mechanism comprises a reaming head (11), the reaming head (11) being fixedly mounted on one end of a conveying rod (10), a plurality of slide grooves (23) being provided on a surface of the reaming head (11), a reaming plate (18) being slidably mounted in each of the plurality of slide grooves (23), one side of the reaming plate (18) being arranged in a sawtooth shape, and an adjustment unit being fixedly mounted on one side of each of the plurality of reaming plates (18).

8. The coal mine directional hole expansion drilling device according to claim 7, characterized in that: The adjustment unit comprises a plurality of racks (20), wherein the plurality of racks (20) are rotatably mounted on one side of the plurality of reaming plates (18) in correspondence, a plurality of transmission rods (22) are rotatably mounted on one side of the reaming head (11), a first-stage gear (21) is fixedly mounted on one end of the plurality of transmission rods (22), and the first-stage gears (21) are meshed with the corresponding racks (20), a mounting hole is provided at one end of the conveying rod (10), a connecting rod (19) is rotatably mounted in the mounting hole, an inner tooth groove is provided at one end of the connecting rod (19), and the first-stage gears (21) are meshed with the inner tooth groove, a positioning plate (16) is fixedly mounted on the other end of the connecting rod (19), a positioning groove is provided on one side of the conveying rod (10), a positioning block (30) is fixedly mounted on one side of the positioning plate (16), and a hexagonal groove (29) is provided on one side of the driving frame (14).

9. The coal mine directional hole expansion drilling device according to claim 1, characterized in that: The rotating assembly comprises a driving rod (13), the driving rod (13) being rotatably mounted in the driving hole, a hole reaming motor (7) being fixedly mounted on one side of the mounting plate (8), and one end of the driving rod (13) being coaxially fixedly connected to an output shaft of the hole reaming motor (7).

10. The coal mine directional hole expansion drilling device according to claim 1, characterized in that: The drilling assembly comprises a hydraulic lift (3), wherein the hydraulic lift (3) is fixedly mounted on the upper side of a base (2), a mobile platform (4) is fixedly mounted on the output end of the hydraulic lift (3), a drilling motor (5) for facilitating driving is fixedly mounted on one side of the mobile platform (4), and the platform (6) is slidably mounted on the upper side of the mobile platform (4).

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