Device for improving drilling quality of water-containing stratum of surface mine

Abstract

The invention discloses a device for improving the drilling quality of a water-containing stratum of a surface mine, relates to the technical field of drilling construction devices, and solves the problems that soil accumulated on the side surface of a drilling position falls into the drilling position along with vibration force generated by drilling, and normal drilling operation is affected. The device for improving the drilling quality of the water-containing stratum of the surface mine comprises an outer support, a drilling assembly, a middle sleeve and an automatic drilling mechanism, the middle sleeve is fixedly installed in the outer support, the interior of the middle sleeve is hollow, and the automatic drilling mechanism extending to the outer side is installed in the middle sleeve; a drilling assembly is installed on the outer side of the bottom of the automatic drilling mechanism. According to the material pushing device, the acting force for driving the drilling adapter and the drill rod connector to rotate can synchronously drive the multiple discharging blades to continuously rotate, material pushing treatment is conducted on the soil part obtained after drilling is completed, and the problem that soil led out from a drilled hole falls into the drilled hole again is solved.

Description

Technical Field

[0001] The invention relates to the technical field of drilling construction devices, in particular to a device for improving the drilling quality of water-bearing strata in open-pit mines. Background Art

[0002] Scraper bits are widely used in drilling operations in open-pit mines. They break rocks by cutting. The blades eat into the strata under the action of drilling pressure. At the same time, the rock in front of the blades continuously produces plastic flow under the action of torsion force, and the rock at the bottom of the hole is peeled off layer by layer. In dry strata, the strata themselves have a certain self-stabilizing ability, and the drill bit has a certain impact on the hole wall when drilling, so the hole wall can remain stable before blasting.

[0003] The existing Chinese patent application with application publication number CN113914857A discloses a drilling machine used in mining, including a handle, a crankcase, a side handle, a head guard, an angle spring device, a drill rod, a solenoid valve, and an oil tank. The handle is connected to the crankcase, the right side of the crankcase is connected to the left side of the oil tank, the crankcase and the bottom of the oil tank are connected to the head guard, the left side of the head guard is fixed with a side handle, the head guard is connected to the solenoid valve, the bottom of the head guard is connected to the angle spring device, and the drill rod is transitionally matched with the crankcase; the invention connects the double screw rod and the transmission shaft through a linkage device and can rotate at the same time, the bevel gear on the drill rod drives the No. 1 bevel gear on both sides to rotate, the connecting wheel and the No. 1 bevel gear on both sides are movably matched, and the two do not affect each other, the No. 1 bevel gear on the left side drives the double screw rod, and the No. 1 bevel gear on the right side drives the transmission shaft to rotate the impeller to inhale.

[0004] The existing Chinese patent application with application publication number CN118128551A discloses a drilling obstacle clearing device for mine rescue, including a drill rod, the bottom of the drill rod is connected to a drill collar, a stabilizer is arranged on the upper side of the drill collar, the bottom of the drill collar is connected to a drill bit, the top of the drill bit is a joint connected to the drill collar threaded and sealed, three teeth are connected to the joint through three palms, and three water spray heads are arranged in a ring array at the bottom of the joint, and the water spray heads are arranged at intervals from the teeth; the inner wall of the drill rod is fixedly connected to a water pump through connecting ribs distributed in a ring array, the upper and lower ends of the water pump are connected end to end, and a high-pressure water chamber is formed between the outer wall of the water pump and the inner wall of the drill rod; the invention can achieve the purpose of extracting water and gravel near the drill bit, and through the arrangement of a crushing column and a crushing tooth ring, the gravel crushed by the teeth can be further crushed, so that the gravel is convenient to be discharged upward through a plunger pump.

[0005] However, the drilling construction device has the following defects when used specifically: 1. When the existing drilling construction equipment is drilling in the water-bearing strata of the open-pit mine, a large amount of soil will extend to the top of the stratum along with the drill bit and accumulate on the side of the drilling position. At this time, due to the large amount of soil accumulation, on the one hand, it will hinder the workers from viewing the depth of the drilling hole in real time, and on the other hand, the vibration force generated by the drilling will cause the soil accumulated on the side of the drilling position to fall into the inside of the drilling position, affecting the normal progress of the drilling operation; 2. When the existing drilling construction equipment drills holes in water-bearing strata, the drill bit will destroy the ground stress balance of the soil itself during the drilling process. The water in the stratum flows due to pressure changes and drives the soil to move, which may cause protrusions on the borehole wall, or even collapse of the hole, resulting in accidents or waste. At the same time, the self-stabilization ability of the water-bearing stratum is poor. For a period of time after the drilling is completed, the hole wall will move into the borehole, resulting in the hole diameter being smaller than the designed hole diameter when charging, affecting the final blasting effect. Summary of the invention

[0006] The object of the present invention is to provide a device for improving the drilling quality of water-bearing strata in open-pit mines, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides a device for improving the drilling quality of water-bearing strata in open-pit mines, comprising an outer support, a drilling assembly, an intermediate sleeve and an automatic drilling mechanism, wherein the intermediate sleeve is fixedly installed inside the outer support, the interior of the intermediate sleeve is arranged to be hollow, and the automated drilling mechanism extending to the outside is installed inside the intermediate sleeve. A drilling assembly is installed on the outer side of the bottom of the automatic drilling mechanism, and the drilling assembly is arranged below the middle sleeve. Wherein, the automated drilling mechanism comprises: A gear rotating assembly, the gear rotating assembly is mounted on the top of the intermediate sleeve, the bottom of the gear rotating assembly extends to the inside of the intermediate sleeve, an intermediate rotating column is mounted on the outside of the bottom of the gear rotating assembly, a vertical lifting assembly extending to the outside of the intermediate sleeve is mounted on the outside of the top of the intermediate rotating column, the vertical lifting assembly is arranged on the side of the gear rotating assembly, and a drilling assembly is mounted on the outside of the bottom of the intermediate rotating column; A multi-angle cleaning arm is movably arranged at the bottom of the middle sleeve, the multi-angle cleaning arm is installed on the outside of the bottom of the middle rotating column, and the multi-angle cleaning arm is arranged on the side of the drilling assembly.

[0008] As a preferred embodiment of the present invention, the drilling assembly comprises: A drilling adapter, wherein a drill rod joint is installed at the bottom of the drilling adapter, a plurality of large scrapers are installed on the outer side of one end of the drilling adapter close to the drill rod joint, and a plurality of small scrapers are installed on the side of the large scraper. The small scraper is installed on the outer side of the top of the drilling adapter, a plurality of large scrapers and a plurality of small scrapers are arranged alternately, and the drilling adapter is installed on the outer side of the bottom of the middle rotating column.

[0009] As a preferred solution of the present invention, a first inclined surface is provided on one side of the bottom of the small scraper, and a second inclined surface is provided on the side of the small scraper away from the middle rotating column. The first inclined plane is arranged on the side of the second inclined plane, and an acute angle of 75 degrees is arranged at the connection between the first inclined plane and the second inclined plane.

[0010] As a preferred embodiment of the present invention, the gear rotating assembly includes: A motor seat, the motor seat is mounted on the top of the intermediate sleeve by screws, a linear motor is mounted on the side of the motor seat, and a bevel gear is connected to the output end of the linear motor. There are two bevel gears, which are meshed and connected, one of which is rotatably connected to the side of the motor seat, and the other is rotatably connected to the center of the top of the intermediate sleeve; A lower connecting rod is installed at the bottom of another of the bevel gears, the lower connecting rod extends to the interior of the middle sleeve, the left and right parts of the lower connecting rod are recessed inwards and form a recessed portion, and the lower connecting rod is movably arranged inside the middle sleeve.

[0011] As a preferred solution of the present invention, the recessed portion and the raised portion are slidably connected, and the raised portion is installed on the left and right sides of the inner wall of the middle rotating column. Wherein, an annular protrusion is installed on the outer side of the top of the intermediate rotating column, and a vertical lifting component is arranged on the outer side of the annular protrusion.

[0012] As a preferred solution of the present invention, an inner groove is formed on the outer surface of the intermediate rotating column, and the inner groove is arranged at the bottom of the annular protrusion. Wherein, a multi-angle cleaning arm is arranged on the outer side of the inner groove.

[0013] As a preferred solution of the present invention, the vertical lifting assembly includes: A servo electric cylinder is installed on both sides of the top of the intermediate sleeve, the output end of the servo electric cylinder extends to the inside of the intermediate sleeve, and a lifting slide block is installed at the bottom of the servo electric cylinder. Wherein, the lifting slider is movably arranged inside the middle sleeve; An annular groove is provided inside the lifting slider, an intermediate rotating column is provided inside the lifting slider, the annular groove is movably provided inside the annular convex portion, and the annular convex portion matches the annular groove.

[0014] As a preferred solution of the present invention, the left and right sides of the lifting slider are slidably connected inside the vertical slot, and the vertical slot is opened on the inner wall of the middle sleeve. Wherein, the length of the vertical slot is greater than the length of the lower connecting rod.

[0015] As a preferred embodiment of the present invention, the multi-angle cleaning arm comprises: A lower gear, the lower gear is rotatably connected to the bottom of the intermediate sleeve, an intermediate rotating column is provided inside the lower gear, one side of the inner wall of the lower gear protrudes inwards and forms an extension part, and the extension part is slidably connected to the inner groove; An L-shaped connecting arm is installed at the eccentric position of the lower gear by means of screws, a first motor is installed on one side of the bottom of the L-shaped connecting arm, and an output end of the first motor is connected to a deflection arm, Wherein, the deflection arm is rotatably connected to the side of the L-shaped connecting arm; A second motor is installed on one side of the bottom of the deflection arm, an output end of the second motor is connected to a rotating block, and the rotating block is rotatably connected to the inner bottom of the deflection arm.

[0016] As a preferred solution of the present invention, a third motor is installed inside the rotating block, and an output end of the third motor is connected to a movable disc, and the movable disc is movably arranged at the bottom of the rotating block. Wherein, a discharge blade is installed on one side of the movable disc, and the discharge blade is movably arranged on the outer side of the middle rotating column.

[0017] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: 1. In the device for improving the drilling quality of water-bearing strata in open-pit mines, when the drilling adapter and the drill rod joint are driven to rotate to realize the drilling operation of water-bearing strata in open-pit mines, the force driving the drilling adapter and the drill rod joint to rotate can synchronously drive the lower gear to rotate, thereby driving multiple unloading blades to continuously rotate, pushing the soil part of the drilled hole, reducing the soil generated by the drilling to accumulate at the drilling position, and preventing the staff from viewing the depth of the drilling in real time. At the same time, it can also avoid the problem of soil drawn out of the drilling hole falling back into the drill hole due to the vibration force generated by the drilling, ensuring the continuous and efficient drilling operation; 2. In the device for improving the drilling quality of water-bearing strata in open-pit mines, when drilling water-bearing strata in open-pit mines, the design of the large scraper and small scraper structure can, on the one hand, scrape off the protruding wall on the borehole wall and remove the protruding large blocks (rocks, etc.) in the blast hole. On the other hand, it can scrape the borehole wall flat, and in the case of insufficient borehole diameter, it can also play the role of expanding the borehole diameter. Moreover, while expanding the borehole diameter, it can also compact the borehole wall, improve the self-stabilization ability of the borehole wall after drilling, and reduce the collapse of the surrounding water-bearing soil after drilling, which is highly safe; 3. In the device for improving the drilling quality of water-bearing strata in open-pit mines, when driving the drilling adapter to rotate and extend to realize the drilling operation, the intermediate rotating column is driven to rotate and lift and move, which can be performed independently and without interfering with each other, ensuring that the drilling adapter connected to the intermediate rotating column can be rotated and lifted and moved synchronously or in steps, realizing efficient and automated drilling construction operations, and improving and enhancing the quality of drilling in water-bearing strata in open-pit mines; 4. In the device for improving the quality of drilling holes in water-bearing strata in open-pit mines, the hanging wall on the hole wall can be scraped off when the drill rod is recovered, making the hole wall smooth and flat, and the hole diameter meets the requirements of charging, which can prevent the hole from getting stuck when bagging finished explosives or lifting explosive packages, and ensure that the hole can be filled with a sufficient amount of mixed explosives. At the same time, inserting a drilling component between the drill rod and the drill bit can improve the quality of drilling without adding additional operations, thereby improving the blasting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] Figure 1 It is a schematic structural diagram of the overall AA surface of the present invention; Figure 2 It is a schematic structural diagram of the overall main view of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention as a whole when viewed from above; Figure 4It is a schematic structural diagram of a cross-section of the intermediate sleeve of the present invention; Figure 5 is a schematic structural diagram of the drilling assembly of the present invention; Figure 6 It is a structural schematic diagram of the automatic drilling mechanism of the present invention; Figure 7 It is an exploded view of the connection between the gear rotating assembly and the intermediate rotating column of the present invention; Figure 8 It is a structural schematic diagram of the cross-section of the connection between the intermediate rotating column and the vertical lifting assembly of the present invention; Fig. 9 is an exploded view of the connection between the intermediate rotating column and the multi-angle cleaning arm of the present invention; Fig.10 is an exploded view of the connection of the multi-angle cleaning arm of the present invention; In the figure: 10. External support; 100. I-beam; 20. Drilling assembly; 201. Drilling adapter; 202. Drill rod joint; 203. Large scraper; 204. Small scraper; 2041. First inclined surface; 2042. Second inclined surface; 30. Intermediate sleeve; 40. Automated drilling mechanism; 50, gear rotating assembly; 500, intermediate rotating column; 5001, annular convex portion; 5002, inner groove; 501, motor seat; 502, linear motor; 503, bevel gear; 504, lower connecting rod; 505, recessed portion; 506, convex portion; 60, vertical lifting assembly; 601, servo electric cylinder; 602, lifting slide block; 6021, vertical groove; 603, annular groove; 70. Multi-angle cleaning arm; 701. Lower gear; 702. Extension; 703. L-shaped connecting arm; 704. First motor; 705. Deflection arm; 706. Second motor; 707. Rotating block; 7071. Third motor; 7072. Movable disc; 7073. Discharge blade. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] See also Figure 1-Figure 10A device for improving the drilling quality of water-bearing strata in open-pit mines includes an outer support 10, a drilling assembly 20, an intermediate sleeve 30 and an automatic drilling mechanism 40. The intermediate sleeve 30 is fixedly installed inside the outer support 10. The interior of the intermediate sleeve 30 is set to be hollow. The automated drilling mechanism 40 extending to the outside is installed inside the intermediate sleeve 30. The drilling assembly 20 is installed outside the bottom of the automated drilling mechanism 40. The drilling assembly 20 is arranged below the intermediate sleeve 30. The automated drilling mechanism 40 includes a gear rotating assembly 50. The gear rotating assembly 50 is installed on the top of the intermediate sleeve 30. The bottom of the wheel rotating assembly 50 extends to the interior of the intermediate sleeve 30, the intermediate rotating column 500 is installed on the outer side of the bottom of the gear rotating assembly 50, and the vertical lifting assembly 60 extending to the outside of the intermediate sleeve 30 is installed on the outer side of the top of the intermediate rotating column 500, and the vertical lifting assembly 60 is arranged on the side of the gear rotating assembly 50, and the drilling assembly 20 is installed on the outer side of the bottom of the intermediate rotating column 500; the multi-angle cleaning arm 70 is movably arranged at the bottom of the intermediate sleeve 30, the multi-angle cleaning arm 70 is installed on the outer side of the bottom of the intermediate rotating column 500, and the multi-angle cleaning arm 70 is arranged on the side of the drilling assembly 20.

[0023] The above working principle: when drilling a water-bearing stratum in an open-pit mine, the gear rotating assembly 50 can drive the drilling assembly 20 to rotate at high speed to achieve drilling operations on water-bearing strata. At the same time, the vertical lifting assembly 60 can operate synchronously to drive the rotating drilling assembly 20 to lift and move, and simulate the state of the drilling assembly 20 in real time to achieve efficient and automated drilling operations. When the drilling assembly 20 is drilling, on the one hand, it can scrape off the protruding wall on the hole wall and remove protruding large rocks; on the other hand, it can scrape the hole wall flat. When the blast hole diameter is not enough, the aperture will be enlarged, and the hole wall can be compacted to improve the self-stabilization ability of the hole wall. In addition, when the gear rotating assembly 50 is in operation, it can also drive the multi-angle cleaning arm 70 to rotate, automatically push the soil part drawn out of the borehole, and move the soil away from the drilling position to avoid the problem of soil falling into the drilling position.

[0024] In the present invention, I-beams 100 are installed on the left and right sides of the outer bracket 10 , and the I-beams 100 are connected to the mechanical arm of the drilling device through screws.

[0025] Specific reference Figure 5The drilling assembly 20 includes a drilling adapter 201, a drill pipe joint 202 is installed at the bottom of the drilling adapter 201, a plurality of large scrapers 203 are installed on the outer side of one end of the drilling adapter 201 close to the drill pipe joint 202, and a plurality of small scrapers 204 are installed on the side of the large scraper 203, wherein the small scraper 204 is installed on the outer side of the top of the drilling adapter 201, the plurality of large scrapers 203 and the plurality of small scrapers 204 are staggered, and the drilling adapter 201 is installed on the outer side of the bottom of the intermediate rotating column 500.

[0026] In this embodiment, a first slope 2041 is provided on one side of the bottom of the small scraper 204, and a second slope 2042 is provided on the side of the small scraper 204 away from the intermediate rotating column 500, wherein the first slope 2041 is provided on the side of the second slope 2042, and an acute angle of 75 degrees is provided at the connection between the first slope 2041 and the second slope 2042.

[0027] In the above embodiment, the functions of flattening the borehole wall and enlarging the borehole diameter can be achieved through the design of the first inclined surface 2041 and the second inclined surface 2042 .

[0028] In the device for improving the drilling quality of water-bearing strata in open-pit mines of the present invention, during the drilling operation, the large scraper 203 scrapes off the protruding wall hangings on the hole wall and removes the protruding large blocks in the blast hole; the small scraper 204 scrapes the hole wall flat, and if the blast hole diameter is not enough, the hole diameter will also be enlarged, and at the same time the hole wall will be compacted to improve the self-stabilization ability of the hole wall.

[0029] Specific reference Figure 6 and Figure 7 The gear rotation assembly 50 includes a motor base 501, which is installed on the top of the intermediate sleeve 30 by screws, and a linear motor 502 is installed on the side of the motor base 501. The output end of the linear motor 502 is connected to a bevel gear 503, wherein two bevel gears 503 are provided, and the two bevel gears 503 are meshed and connected, one bevel gear 503 is rotatably connected to the side of the motor base 501, and the other bevel gear 503 is rotatably connected to the center of the top of the intermediate sleeve 30; a lower connecting rod 504, which is installed at the bottom of the other bevel gear 503, and the lower connecting rod 504 extends to the inside of the intermediate sleeve 30, and the left and right sides of the lower connecting rod 504 are recessed inward and constitute a recessed portion 505, and the lower connecting rod 504 is movably arranged inside the intermediate sleeve 30.

[0030] In this embodiment, the recessed portion 505 and the raised portion 506 are slidably connected, and the raised portion 506 is installed on the left and right sides of the inner wall of the intermediate rotating column 500, wherein an annular protrusion 5001 is installed on the outer side of the top of the intermediate rotating column 500, and a vertical lifting assembly 60 is arranged on the outer side of the annular protrusion 5001; an inner groove 5002 is opened on the outer surface of the intermediate rotating column 500, and the inner groove 5002 is arranged at the bottom of the annular protrusion 5001, wherein a multi-angle cleaning arm 70 is arranged on the outer side of the inner groove 5002.

[0031] In the device for improving the drilling quality of water-bearing strata in open-pit mines of the present invention, when it is necessary to drive the drilling adapter 201 to rotate, the linear motor 502 is started to operate, driving the bevel gear 503 connected to the output end of the linear motor 502 to rotate. When the bevel gear 503 rotates, it will drive another bevel gear 503 meshed and connected to its side to rotate, and make the lower connecting rod 504 connected to the other bevel gear 503 rotate. At this time, when the lower connecting rod 504 rotates, the middle rotating column 500 connected to the outer side through the recessed portion 505 and the raised portion 506 will rotate, thereby driving the drilling adapter 201 connected to the bottom of the middle rotating column 500 to rotate.

[0032] In the present invention, when the middle rotating column 500 is lifted or lowered, the lower connecting rod 504 inside it is lifted or lowered under the action of the recessed portion 505 and the raised portion 506, and the middle rotating column 500 is rotated when the lower connecting rod 504 rotates while ensuring that the lifting and lowering movements will not interfere with each other.

[0033] Specific reference Figure 8 The vertical lifting assembly 60 includes a servo electric cylinder 601, which is installed on both sides of the top of the intermediate sleeve 30. The output end of the servo electric cylinder 601 extends to the inside of the intermediate sleeve 30. A lifting slider 602 is installed at the bottom of the servo electric cylinder 601, wherein the lifting slider 602 is movably arranged inside the intermediate sleeve 30; an annular groove 603, which is opened inside the lifting slider 602, and an intermediate rotating column 500 is arranged inside the lifting slider 602. The inside of the annular groove 603 is movably arranged on the annular protrusion 5001, and the annular protrusion 5001 matches the annular groove 603.

[0034] In this embodiment, the left and right sides of the lifting slider 602 are slidably connected inside the vertical groove 6021, and the vertical groove 6021 is opened at the inner wall of the middle sleeve 30, wherein the length of the vertical groove 6021 is greater than the length of the lower connecting rod 504.

[0035] In the device for improving the drilling quality of water-bearing strata in open-pit mines of the present invention, when drilling is performed, the servo electric cylinder 601 is started to operate, driving the lifting slider 602 connected to the output end of the servo electric cylinder 601 to move up and down, and adjusting the position and height of the intermediate rotating column 500 connected to the inner part of the lifting slider 602 through the annular groove 603. At the same time, when the intermediate rotating column 500 rotates, it can rotate inside the annular groove 603, ensuring that the lifting and rotating operations will not cause interference and conflict.

[0036] Specific reference Fig. 9 and Fig.10 The multi-angle cleaning arm 70 includes a lower gear 701, which is rotatably connected to the bottom of the intermediate sleeve 30. An intermediate rotating column 500 is arranged inside the lower gear 701. One side of the inner wall of the lower gear 701 protrudes inward and forms an extension portion 702. The extension portion 702 is slidably connected to the inner groove 5002; an L-shaped connecting arm 703, which is installed at the eccentric position of the lower gear 701 by screws, and a first motor 704 is installed on one side of the bottom of the L-shaped connecting arm 703. The output end of the first motor 704 is connected to a deflection arm 705, wherein the deflection arm 705 is rotatably connected to the side of the L-shaped connecting arm 703; a second motor 706, which is installed on one side of the bottom of the deflection arm 705, and the output end of the second motor 706 is connected to a rotating block 707, and the rotating block 707 is rotatably connected to the inner bottom of the deflection arm 705.

[0037] In this embodiment, a third motor 7071 is installed inside the rotating block 707, and the output end of the third motor 7071 is connected to a movable disc 7072, and the movable disc 7072 is movably arranged at the bottom of the rotating block 707, wherein a unloading blade 7073 is installed on one side of the movable disc 7072, and the unloading blade 7073 is movably arranged on the outer side of the intermediate rotating column 500.

[0038] In the above embodiment, when cleaning the soil generated by drilling, the third motor 7071 is first started to operate, and the angle and direction of the movable disc 7072 and the discharge blade 7073 connected to its bottom are determined according to the rotation direction to ensure that the discharge blade 7073 can push the soil to move when rotating.

[0039] In the device for improving the drilling quality of water-bearing strata in open-pit mines of the present invention, when the intermediate rotating column 500 rotates, the lower gear 701 connected to the outer portion through the extension 702 and the inner groove 500 will rotate, thereby driving the L-shaped connecting arm 703 installed at the eccentric position of the bottom of the lower gear 701 to rotate, driving the unloading blade 7073 to rotate and push the soil to move. The design of the sliding connection between the extension 702 and the inner groove 500 ensures that the intermediate rotating column 500 can be lifted and moved inside the lower gear 701 without interfering with the normal rotation of the lower gear 701. The operation of the first motor 704 and the second motor 706 can respectively drive the deflection arm 705 and the rotating block 707 to rotate, and determine the position and angle of the unloading blade 7073.

[0040] Without limitation, any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent substitutions or changes according to the technical solution and inventive concept of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A device for improving the quality of drilling in water-bearing strata in an open-pit mine, comprising an outer support (10), a drilling assembly (20), an intermediate sleeve (30) and an automated drilling mechanism (40), characterized in that: An intermediate sleeve (30) is fixedly installed inside the outer bracket (10), the interior of the intermediate sleeve (30) is arranged to be hollow, and an automated drilling mechanism (40) extending to the outside is installed inside the intermediate sleeve (30). A drilling assembly (20) is installed on the outer side of the bottom of the automated drilling mechanism (40), and the drilling assembly (20) is arranged below the middle sleeve (30). Wherein, the automated drilling mechanism (40) comprises: A gear rotating assembly (50), wherein the gear rotating assembly (50) is mounted on the top of the intermediate sleeve (30), the bottom of the gear rotating assembly (50) extends to the inside of the intermediate sleeve (30), an intermediate rotating column (500) is mounted on the outside of the bottom of the gear rotating assembly (50), a vertical lifting assembly (60) extending to the outside of the intermediate sleeve (30) is mounted on the outside of the top of the intermediate rotating column (500), the vertical lifting assembly (60) is arranged on the side of the gear rotating assembly (50), and a drilling assembly (20) is mounted on the outside of the bottom of the intermediate rotating column (500); A multi-angle cleaning arm (70), the multi-angle cleaning arm (70) being movably arranged at the bottom of the middle sleeve (30), the multi-angle cleaning arm (70) being mounted on the outside of the bottom of the middle rotating column (500), and the multi-angle cleaning arm (70) being arranged on the side of the drilling assembly (20).

2. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 1, characterized in that: The drilling assembly (20) comprises: A drilling adapter (201), wherein a drill rod joint (202) is installed at the bottom of the drilling adapter (201), a plurality of large scrapers (203) are installed on the outer side of one end of the drilling adapter (201) close to the drill rod joint (202), and a plurality of small scrapers (204) are installed on the side of the large scraper (203), The small scraper (204) is mounted on the outside of the top of the drilling adapter (201), a plurality of the large scrapers (203) and a plurality of the small scrapers (204) are arranged alternately, and the drilling adapter (201) is mounted on the outside of the bottom of the middle rotating column (500).

3. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 2, characterized in that: A first inclined surface (2041) is provided on one side of the bottom of the small scraper (204), and a second inclined surface (2042) is provided on the side of the small scraper (204) away from the middle rotating column (500). The first inclined surface (2041) is arranged on the side of the second inclined surface (2042), and an acute angle of 75 degrees is arranged at the connection between the first inclined surface (2041) and the second inclined surface (2042).

4. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 1, characterized in that: The gear rotating assembly (50) comprises: A motor seat (501), the motor seat (501) being mounted on the top of the intermediate sleeve (30) by means of screws, a linear motor (502) being mounted on the side of the motor seat (501), and an output end of the linear motor (502) being connected to a bevel gear (503). There are two bevel gears (503), the two bevel gears (503) are meshed and connected, one bevel gear (503) is rotatably connected to the side of the motor base (501), and the other bevel gear (503) is rotatably connected to the center of the top of the intermediate sleeve (30); A lower connecting rod (504), the lower connecting rod (504) is installed at the bottom of another of the bevel gears (503), the lower connecting rod (504) extends to the inside of the middle sleeve (30), the left and right sides of the lower connecting rod (504) are recessed inwards and form a recessed portion (505), and the lower connecting rod (504) is movably arranged inside the middle sleeve (30).

5. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 4, characterized in that: The recessed portion (505) and the raised portion (506) are slidably connected, and the raised portion (506) is mounted on the left and right sides of the inner wall of the middle rotating column (500). Wherein, an annular protrusion (5001) is installed on the outer side of the top of the intermediate rotating column (500), and a vertical lifting assembly (60) is arranged on the outer side of the annular protrusion (5001).

6. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 5, characterized in that: An inner groove (5002) is formed on the outer surface of the intermediate rotating column (500), and the inner groove (5002) is arranged at the bottom of the annular protrusion (5001). Wherein, a multi-angle cleaning arm (70) is arranged on the outer side of the inner groove (5002).

7. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 6, characterized in that: The vertical lifting assembly (60) comprises: A servo electric cylinder (601), the servo electric cylinder (601) being mounted on both sides of the top of the intermediate sleeve (30), the output end of the servo electric cylinder (601) extending into the interior of the intermediate sleeve (30), and a lifting slide block (602) being mounted at the bottom of the servo electric cylinder (601). Wherein, the lifting slider (602) is movably arranged inside the middle sleeve (30); An annular groove (603) is provided inside the lifting slider (602), an intermediate rotating column (500) is provided inside the lifting slider (602), the interior of the annular groove (603) is movably arranged on the annular convex portion (5001), and the annular convex portion (5001) and the annular groove (603) match each other.

8. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 7, characterized in that: The left and right sides of the lifting slider (602) are slidably connected to the inside of the vertical groove (6021), and the vertical groove (6021) is opened on the inner wall of the middle sleeve (30). Wherein, the length of the vertical groove (6021) is greater than the length of the lower connecting rod (504).

9. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 8, characterized in that: The multi-angle cleaning arm (70) comprises: a lower gear (701), the lower gear (701) being rotatably connected to the bottom of the intermediate sleeve (30), an intermediate rotating column (500) being provided inside the lower gear (701), one side of the inner wall of the lower gear (701) protruding inwards and forming an extension portion (702), the extension portion (702) being slidably connected to the inner groove (5002); An L-shaped connecting arm (703) is mounted on an eccentric portion of the lower gear (701) by means of screws, a first motor (704) is mounted on one side of the bottom of the L-shaped connecting arm (703), and an output end of the first motor (704) is connected to a deflection arm (705). Wherein, the deflection arm (705) is rotatably connected to the side of the L-shaped connecting arm (703); A second motor (706), wherein the second motor (706) is mounted on one side of the bottom of the deflection arm (705), and an output end of the second motor (706) is connected to a rotating block (707), and the rotating block (707) is rotatably connected to the inner bottom of the deflection arm (705).

10. The device for improving the drilling quality of water-bearing strata in open-pit mines according to claim 9, characterized in that: A third motor (7071) is installed inside the rotating block (707), and an output end of the third motor (7071) is connected to a movable disc (7072). The movable disc (7072) is movably arranged at the bottom of the rotating block (707). Wherein, a discharge blade (7073) is installed on one side of the movable disc (7072), and the discharge blade (7073) is movably arranged on the outside of the middle rotating column (500).

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