Well drilling device with drill bit convenient to clean

Abstract

The invention belongs to the technical field of mine drilling, and discloses a drilling device with a drill bit convenient to clean. A support assembly; four fixing assemblies; a guide assembly; and a drilling assembly and a spray-washing assembly. According to the device, by installing a newly-designed spray-washing assembly, when drilling is completed and a drill rod is returned, after a drill bit passes through a round hole, a movable plate moves to close the round hole, a base forms a closed rectangular plate, then water is injected into a round shell through an arc-shaped block and a square pipe, an impeller can be pushed under the action of water flow to rotate in the round shell, and the round shell is driven to rotate; when the water flow passes through the V-shaped crack formed by the inclined groove, the water flow is sprayed out in an annular mode to clean the drill bit, the spray head installed at the top of the arc-shaped block conducts cleaning when the drill rod ascends, sewage can be discharged in an annular mode through a plurality of drainage grooves, and the problems that an existing well drilling device is not easy to clean or directly flushed, and a drill hole collapses due to the water flow are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of mine drilling, and in particular relates to a drilling device which is convenient for cleaning a drill bit. Background Art

[0002] Mining drilling is a technical means of using a drilling machine to exploit underground resources. It achieves the purpose of exploration and mining by drilling a vertical shaft. It is mainly composed of a top drive device, a pulley block in the middle, and a drill bit and drill rod at the bottom. Among them, the drive device is responsible for providing rotational power; the pulley block is used to support and guide the drill string; and the drill rod and drill bit are responsible for breaking the ground and drilling holes;

[0003] When drilling in a mine, the drill bit will pass through a water-bearing soil layer, a dry soil layer and a mineral layer. Different substances will be attached to the drill bit in different layers. The water-bearing layer drill bit will be attached with sludge, and the mineral layer drill bit will be attached with fine minerals. These substances will be taken away from the drill hole when the rod is returned. These impurities need to be cleaned in time to ensure the service life of the drill bit. However, the existing drilling device is not easy to move, so the cleaning of the drill bit is either done after disassembly or directly flushed in the original drilling area. However, direct flushing will cause the sewage to enter the drill hole, which will cause the drill hole to collapse. Therefore, a drilling device that is efficient, does not affect the drilling hole, and is easy to clean the drill bit is needed. Summary of the invention

[0004] The object of the present invention is to provide a drilling device which is convenient for cleaning the drill bit, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a drilling device that is convenient for cleaning a drill bit, comprising a base, a support assembly is fixedly connected to the top of the base, and a linkage guide drilling mechanism, which comprises four fixed assemblies, the four fixed assemblies are all fixedly installed at the middle position of the support assembly, a guide assembly is fixedly installed at the middle position of the support assembly, and a drilling assembly is fixedly installed at the middle position of the guide assembly;

[0006] A spray assembly, the spray assembly is fixedly installed at the top center position of the base, the spray assembly includes three arc blocks, the tops of the three arc blocks are fixedly connected with spray heads, the inner sides of the three arc blocks are fixedly installed with square tubes, the middle positions of the three square tubes are fixedly installed with a round shell, the round shell is divided into an outer ring and an inner ring, the inner ring has a plurality of inclined grooves around it, the inner part of the round shell is movably clamped with an impeller, the bottom of the round shell is fixedly connected with an annular seat, and the annular seat is fixedly connected to the base.

[0007] Preferably, the three square tubes are fixedly connected to the outer ring of the circular shell, the outer ring begins to have a square groove, the opening direction of the inclined groove is from the upper left to the lower right, the direction of the impeller blades is from the lower left to the upper right, and the impeller can form a V-shaped gap between the multiple inclined grooves when rotating in the circular shell.

[0008] Preferably, six drainage grooves are provided in a ring shape on the top of the base, a circular hole is provided in the middle of the base, two rails are fixedly installed on the bottom of the base, a movable plate is slidably installed in the two rails, an electric guide wheel is installed at the position where the movable plate is plugged into the two rails, and the diameter of the movable plate is larger than the diameter of the circular hole.

[0009] Preferably, the support assembly includes four inclined rods, the four inclined rods are fixedly installed on the top of the base, a fixed block is fixedly installed on the top of the four inclined rods, a bent rod is fixedly connected to the bottom of the fixed block, and the outer edge of the bent rod is movably sleeved with a first rotating wheel.

[0010] Preferably, the fixing component includes a fixing cone, a connecting block is fixedly connected to the side of the fixing cone, two groups of connecting plates are movably hinged on the left side of the connecting block, the rotating shafts of the two connecting plates on the top are elastically connected to a first spring, the right side of the first spring is fixedly connected to the left side of the connecting block, the left rotating shafts of the two groups of connecting plates are movably hinged with a U-shaped block, and the left side of the U-shaped block is fixedly connected with a steel cable.

[0011] Preferably, the guide assembly includes a rectangular frame, which is fixedly installed in the middle position of the four oblique rods, and four guide strips are fixedly installed at the bottom of the rectangular frame, and the four guide strips are each provided with an elliptical groove, and round blocks are movably connected in the four elliptical grooves, and the inner sides of the four round blocks are elastically connected to second springs, and the other ends of the four second springs are fixedly connected to the first universal joints, and the middle positions of the four first universal joints are fixedly connected to threaded rings.

[0012] Preferably, the left ends of the four steel cables are fixedly connected to the bottom of the rectangular frame, and the first spring is installed tilted from left to right.

[0013] Preferably, the drilling assembly includes a first motor, which is fixedly mounted on the top of the fixed block, and the output shaft of the first motor is fixedly connected to a bevel gear group, and the front end of the bevel gear group is fixedly connected to a winch, and a cable is wound around the outer edge of the winch, and a diamond block is suspended at the bottom of the cable, and a second rotating wheel is rotatably mounted on the top of the diamond block, and the cable is wound around the second rotating wheel and upwardly wound around the first rotating wheel, and then fixedly connected to the top rod of the diamond block, and a second universal joint is fixedly connected to the bottom of the diamond block, and a second motor is fixedly mounted on the bottom of the second universal joint, and a drill rod is fixedly mounted on the output shaft of the second motor, and the drill rod is threadedly inserted in the threaded ring, and a conical drill bit is fixedly connected to the bottom of the drill rod.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The present invention is equipped with a newly designed spray cleaning assembly. When the drilling is completed and the drill rod is returned, after the drill bit passes through the circular hole, the movable plate moves to close the circular hole, and the base forms a closed rectangular plate. Then water is injected into the circular shell through the arc block and the square tube. The impeller is pushed by the water flow and rotates in the circular shell. After passing through the V-shaped gap formed with the inclined groove, the water flow is sprayed out in a ring manner to clean the drill bit, and the nozzle installed on the top of the arc block cleans the drill rod when it rises. The sewage is discharged in a ring through multiple drainage grooves, which solves the problem that the existing drilling device is difficult to clean or is directly washed, and the water flow causes the drill hole to collapse.

[0016] 2. The present invention is equipped with a movable guiding assembly. When the drill rod moves downward, the threaded ring will be subjected to the downward force of the thread, and the four round blocks will move downward in the guide strip. The four second springs elastically grow, and the threaded rings connected by the four first universal joints form a guide for the drill rod. When the rod is returned, the drill rod moves upward, and the threaded ring will thread upward and reach the top of the elliptical groove of the guide strip driven by the four round blocks, thereby realizing the variable spacing guidance of the longitudinal guiding assembly, thereby ensuring that the longitudinal drilling of the drill rod and the drill bit will not deviate.

[0017] 3. The present invention is equipped with a shock-absorbing fixing component, which will generate vibration force when drilling. The vibration force will be transmitted to the connecting piece and the first spring through four steel cables. The first spring elastically contracts and resets to offset the vibration. The two groups of connecting pieces rotate on the connecting block when the first spring is working to provide a limit, thereby achieving the effect of shock absorption and reducing the damage of vibration to the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the spray cleaning assembly of the present invention;

[0020] Figure 3 A bottom view of the base structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the impeller structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the guide assembly of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the drilling assembly of the present invention.

[0025] In the figure: 1, base; 2, spray assembly; 3, support assembly; 4, fixing assembly; 5, guide assembly; 6, drilling assembly; 11, drainage groove; 12, round hole; 13, track; 14, movable plate; 21, arc block; 22, nozzle; 23, square tube; 24, round shell; 25, inclined groove; 26, impeller; 27, annular seat; 31, inclined rod; 32, fixing block; 33, bent rod; 34, first runner; 41, fixing cone ; 42. Connecting block; 43. Connecting plate; 44. First spring; 45. U-shaped block; 46. Steel cable; 51. Rectangular frame; 52. Guide strip; 53. Round block; 54. Second spring; 55. First universal joint; 56. Threaded ring; 61. First motor; 62. Bevel gear set; 63. Capstan; 64. Cable; 65. Diamond block; 66. Second rotating wheel; 67. Second universal joint; 68. Second motor; 69. Drill rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, an embodiment of the present invention provides a drilling device that is convenient for cleaning a drill bit, including a base 1, a support assembly 3 is fixedly connected to the top of the base 1, and a linkage guide drilling mechanism includes four fixing assemblies 4, the four fixing assemblies 4 are all fixedly installed at the middle position of the support assembly 3, a guide assembly 5 is fixedly installed at the middle position of the support assembly 3, and a drilling assembly 6 is fixedly installed at the middle position of the guide assembly 5;

[0028] The spray assembly 2 is fixedly installed at the top center of the base 1. The spray assembly 2 includes three arc blocks 21. The tops of the three arc blocks 21 are fixedly connected with nozzles 22. The inner sides of the three arc blocks 21 are fixedly installed with square tubes 23. The middle positions of the three square tubes 23 are fixedly installed with round shells 24. The round shells 24 are divided into an outer ring and an inner ring. The inner ring is surrounded by a plurality of inclined grooves 25. The inner part of the round shell 24 is movably connected with an impeller 26. The round shell 24 The bottom of the circular shell 24 is fixedly connected with an annular seat 27, and the annular seat 27 is fixedly connected to the base 1; three square tubes 23 are fixedly connected to the outer ring of the circular shell 24, and the outer ring begins to have a square groove, the opening direction of the inclined groove 25 is from the upper left to the lower right, and the direction of the blades of the impeller 26 is from the lower left to the upper right. When the impeller 26 rotates in the circular shell 24, a V-shaped seam can be formed between the multiple inclined grooves 25. The arc block 21 is a hollow water inlet structural member, and forms a water supply link to the circular shell 24 with the square tube 23;

[0029] When the drilling is completed and the drill rod 69 is returned, after the drill bit passes through the circular hole 12, the movable plate 14 moves to close the circular hole 12. At this time, water is injected into the circular shell 24 through the arc block 21 and the square tube 23. The impeller 26 is pushed by the water flow and rotates in the circular shell 24. After passing through the V-shaped gap formed with the inclined groove 25, the water flow is ejected in a circular manner to clean the drill bit. The nozzle 22 installed on the top of the arc block 21 cleans the drill rod 69 when it rises. The sewage is discharged in a circular manner through multiple drainage grooves 11, which solves the problem that the existing drilling device is difficult to clean or is directly flushed, and the water flow causes the drill hole to collapse;

[0030] Among them, six drainage grooves 11 are provided in a circular shape at the top of the base 1, a circular hole 12 is provided in the middle of the base 1, two rails 13 are fixedly installed at the bottom of the base 1, and a movable plate 14 is slidably installed in the two rails 13. The movable plate 14 is plugged into the position of the two rails 13 and an electric guide wheel is installed. The diameter of the movable plate 14 is larger than the diameter of the circular hole 12;

[0031] When drilling, the movable plate 14 slides on the track 13 to expose the circular hole 12 so that the drill rod 69 and the drill bit can pass through. When cleaning, the movable plate 14 blocks the circular hole 12 to prevent sewage from flowing into the drill hole;

[0032] The support assembly 3 includes four inclined rods 31, which are fixedly mounted on the top of the base 1, and a fixed block 32 is fixedly mounted on the top of the four inclined rods 31. A bent rod 33 is fixedly connected to the bottom of the fixed block 32, and a first rotating wheel 34 is movably sleeved on the outer edge of the bent rod 33.

[0033] A rectangular frame 51 is installed in the middle of the inclined rod 31, a fixed block 32 is installed at the top, and the whole device also has four fixed components 4 for oblique pulling, a steel cable 46 for pulling, and a fixed cone 41 is embedded in the soil, thereby ensuring the longitudinal structural strength of the whole device;

[0034] Among them, the fixing component 4 includes a fixing cone 41, a connecting block 42 is fixedly connected to the side of the fixing cone 41, two groups of connecting pieces 43 are movably hinged on the left side of the connecting block 42, the rotating shafts of the two connecting pieces 43 on the top are elastically connected to the first spring 44, the right side of the first spring 44 is fixedly connected to the left side of the connecting block 42, a U-shaped block 45 is movably hinged to the left rotating shafts of the two groups of connecting pieces 43, and a steel cable 46 is fixedly connected to the left side of the U-shaped block 45;

[0035] When drilling, vibration force is generated, which is transmitted to the connecting piece 43 and the first spring 44 through the four steel cables 46 and the U-shaped block 45. The first spring 44 elastically contracts and resets to offset the vibration. When the first spring 44 works, the two sets of connecting pieces 43 rotate on the connecting block 42 to provide position limiting.

[0036] The guide assembly 5 includes a rectangular frame 51, which is fixedly installed at the middle position of the four inclined rods 31. Four guide bars 52 are fixedly installed at the bottom of the rectangular frame 51. The four guide bars 52 are each provided with an elliptical groove. Round blocks 53 are movably connected in the four elliptical grooves. The inner sides of the four round blocks 53 are elastically connected with second springs 54. The other ends of the four second springs 54 are fixedly connected with first universal joints 55. The middle positions of the four first universal joints 55 are fixedly connected with threaded rings 56. The left ends of the four steel cables 46 are fixedly connected to the bottom of the rectangular frame 51. The first spring 44 is installed tilted from left to right.

[0037] When the drill rod 69 moves downward, the threaded ring 56 is subjected to a force of threading downward, and the four round blocks 53 move downward in the guide bar 52. The four second springs 54 elastically increase, and the threaded ring 56 connected by four first universal joints 55 forms a guide for the drill rod 69. When the drill rod 69 moves upward, the threaded ring 56 will thread upward and reach the top of the elliptical groove of the guide bar 52 driven by the four round blocks 53, thereby realizing the variable spacing guidance of the longitudinal guide assembly 5.

[0038] The drilling assembly 6 comprises a first motor 61, which is fixedly mounted on the top of the fixed block 32, the output shaft of the first motor 61 is fixedly connected with a bevel gear set 62, the front end of the bevel gear set 62 is fixedly connected with a capstan 63, the outer edge of the capstan 63 is wound with a cable 64, a diamond block 65 is suspended at the bottom of the cable 64, a second rotating wheel 66 is rotatably mounted on the top of the diamond block 65, the cable 64 is wound around the second rotating wheel 66 and upwardly wound around the first rotating wheel 34, and then fixedly connected with the top rod of the diamond block 65, the bottom of the diamond block 65 is fixedly connected with a second universal joint 67, the bottom of the second universal joint 67 is fixedly mounted with a second motor 68, the output shaft of the second motor 68 is fixedly mounted with a drill rod 69, the drill rod 69 is threadedly inserted in the threaded ring 56, and the bottom of the drill rod 69 is fixedly connected with a conical drill bit;

[0039] The first motor 61 rotates, driving the winch 63 to move clockwise through the bevel gear set 62. The winch 63 is released at the outer edge of the bevel gear set 62, and the second rotating wheel 66 moves downward on the movable pulley set formed by the bent rod 33 and the cable 64. The drill rod 69 moves downward under the action of gravity. When the drill bit touches the ground, the second motor 68 is started. The second motor 68 drives the entire drill rod 69 to rotate and continues to move downward under the hoisting of the drilling assembly 6 to break the soil layer.

[0040] Working principle:

[0041] When using the device to drill a vertical shaft in a mine, firstly, the base 1 is built in a designated area, and four inclined rods 31 are installed, a rectangular frame 51 is installed in the middle of the inclined rods 31, and a fixed block 32 is installed at the top. In addition, the device as a whole also has four fixed components 4 for oblique pulling, and the steel cable 46 is pulled, and the fixed cone 41 is embedded in the soil;

[0042] When drilling a hole, the movable plate 14 slides on the track 13 to expose the circular hole 12, and the drilling assembly 6 is started. The first motor 61 rotates, and drives the winch 63 to move clockwise through the bevel gear set 62. The winch 63 is released at the outer edge of the bevel gear set 62, and the second rotating wheel 66 moves downward on the movable pulley set formed by the bent rod 33 and the cable 64. The drill rod 69 moves downward under the action of gravity. When the drill bit touches the ground, the second motor 68 is started, and the second motor 68 drives the entire drill rod 69 to rotate, and continues to move downward under the hoisting of the drilling assembly 6 to break the soil layer;

[0043] During the downward movement of the drill rod 69, it will be guided by the guide assembly 5 to ensure that it can accurately perform vertical drilling. When the drill rod 69 moves downward, the threaded ring 56 will be subjected to the force of the thread downward, and the four round blocks 53 will move downward in the guide bar 52. The four second springs 54 will elastically increase, and the threaded ring 56 connected by the four first universal joints 55 will form a guide for the drill rod 69. When the drill rod 69 is returned, the drill rod 69 moves upward, and the threaded ring 56 will thread upward and reach the top of the elliptical groove of the guide bar 52 driven by the four round blocks 53, thereby realizing the variable spacing guidance of the longitudinal guide assembly 5.

[0044] When drilling, vibration force is generated, which is transmitted to the connecting piece 43 and the first spring 44 through the four steel cables 46 and the U-shaped block 45. The first spring 44 elastically contracts and resets to offset the vibration. When the first spring 44 works, the two sets of connecting pieces 43 rotate on the connecting block 42 to provide position limiting.

[0045] When the drilling is completed and the drill rod 69 is returned, after the drill bit passes through the circular hole 12, the movable plate 14 moves to close the circular hole 12. At this time, water is injected into the circular shell 24 through the arc block 21 and the square tube 23. The impeller 26 is pushed by the water flow and rotates in the circular shell 24. After passing through the V-shaped gap formed with the inclined groove 25, the water flow is ejected in a ring manner to clean the drill bit, and the nozzle 22 installed on the top of the arc block 21 cleans the drill rod 69 when it rises. The sewage will be discharged in a ring through multiple drainage grooves 11, and the work process ends here.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for facilitating cleaning of a drill bit, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a support assembly (3), and further comprises: A linkage guided drilling mechanism, comprising four fixing components (4), wherein the four fixing components (4) are all fixedly mounted at the middle position of the support component (3), a guiding component (5) is fixedly mounted at the middle position of the support component (3), and a drilling component (6) is fixedly mounted at the middle position of the guiding component (5); A spray cleaning component (2), the spray cleaning component (2) is fixedly mounted at the top center position of the base (1), the spray cleaning component (2) comprises three arc blocks (21), the tops of the three arc blocks (21) are fixedly connected with spray heads (22), the inner sides of the three arc blocks (21) are fixedly mounted with square tubes (23), a round shell (24) is fixedly mounted at the middle position of the three square tubes (23), the round shell (24) is divided into an outer ring and an inner ring, the inner ring is surrounded by a plurality of inclined grooves (25), an impeller (26) is movably clamped inside the round shell (24), the bottom of the round shell (24) is fixedly connected with an annular seat (27), and the annular seat (27) is fixedly connected to the base (1).

2. A drilling device for facilitating cleaning of a drill bit according to claim 1, characterized in that: The three square tubes (23) are fixedly connected to the outer ring of the circular shell (24); the outer ring begins to have a square groove; the opening direction of the inclined groove (25) is from the upper left to the lower right; the direction of the blades of the impeller (26) is from the lower left to the upper right; when the impeller (26) rotates in the circular shell (24), a V-shaped gap can be formed between the plurality of inclined grooves (25).

3. A drilling device for facilitating cleaning of a drill bit according to claim 2, characterized in that: The top of the base (1) is provided with six drainage grooves (11) in a circular shape, the middle of the base (1) is provided with a circular hole (12), the bottom of the base (1) is fixedly provided with two rails (13), a movable plate (14) is slidably installed in the two rails (13), the movable plate (14) is plugged into the position of the two rails (13) and an electric guide wheel is installed, the diameter of the movable plate (14) is larger than the diameter of the circular hole (12).

4. A drilling device for facilitating cleaning of a drill bit according to claim 3, characterized in that: The support assembly (3) comprises four inclined rods (31), the four inclined rods (31) are fixedly mounted on the top of the base (1), a fixed block (32) is fixedly mounted on the top of the four inclined rods (31), a bent rod (33) is fixedly connected to the bottom of the fixed block (32), and a first rotating wheel (34) is movably sleeved on the outer edge of the bent rod (33).

5. A drilling device for facilitating cleaning of a drill bit according to claim 4, characterized in that: The fixing assembly (4) comprises a fixing cone (41), the side of the fixing cone (41) is fixedly connected to a connecting block (42), the left side of the connecting block (42) is movably hinged with two groups of connecting plates (43), the rotating shafts of the two connecting plates (43) at the top are elastically connected to a first spring (44), the right side of the first spring (44) is fixedly connected to the left side of the connecting block (42), the left rotating shafts of the two groups of connecting plates (43) are movably hinged with a U-shaped block (45), and the left side of the U-shaped block (45) is fixedly connected with a steel cable (46).

6. A drilling device for facilitating cleaning of a drill bit according to claim 4, characterized in that: The guide assembly (5) comprises a rectangular frame (51), the rectangular frame (51) being fixedly mounted at the middle position of the four inclined rods (31), four guide bars (52) being fixedly mounted at the bottom of the rectangular frame (51), the four guide bars (52) being provided with elliptical grooves, round blocks (53) being movably engaged in the four elliptical grooves, the inner sides of the four round blocks (53) being elastically connected with second springs (54), the other ends of the four second springs (54) being fixedly connected with first universal joints (55), and the middle positions of the four first universal joints (55) being fixedly connected with threaded rings (56).

7. A drilling device for facilitating cleaning of a drill bit according to claim 5, characterized in that: The left ends of the four steel cables (46) are fixedly connected to the bottom of the rectangular frame (51), and the first spring (44) is installed tilted from left to right.

8. A drilling device for facilitating cleaning of a drill bit according to claim 4, characterized in that: The drilling assembly (6) comprises a first motor (61), the first motor (61) is fixedly mounted on the top of the fixed block (32), the output shaft of the first motor (61) is fixedly connected to a bevel gear set (62), the front end of the bevel gear set (62) is fixedly connected to a winch (63), a cable (64) is wound around the outer edge of the winch (63), a diamond block (65) is suspended at the bottom of the cable (64), a second rotating wheel (66) is rotatably mounted on the top of the diamond block (65), and the cable (64) is wound around the outer edge of the winch (63), a diamond block (65) is suspended at the bottom of the diamond block (64), and a second rotating wheel (66) is rotatably mounted on the top of the diamond block (65), and the second rotating wheel (66) is wound around the outer edge of the winch (63). After the cable (64) is wound around the second rotating wheel (66) and upwardly wound around the first rotating wheel (34), it is fixedly connected to the top rod of the diamond block (65); the bottom of the diamond block (65) is fixedly connected to a second universal joint (67); the bottom of the second universal joint (67) is fixedly installed with a second motor (68); the output shaft of the second motor (68) is fixedly installed with a drill rod (69); the drill rod (69) is threadedly inserted into the threaded ring (56); the bottom of the drill rod (69) is fixedly connected with a conical drill bit.

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