A mine rock drilling rig

Abstract

The present application relates to the technical field of rock drilling, and discloses a mine rock drilling device, which comprises a mounting seat, a drill cylinder, an inner drill bit assembly and an auxiliary cutting-off mechanism, the mounting seat is connectable with an external propelling device, one end of the drill cylinder is rotatably connected with the mounting seat, and the other end is connected with an outer drill bit, the inner drill bit assembly comprises a connecting plate, a second bearing seat and a drill rod, the drill bit part of the drill rod is adapted to be stabbed into a rock column formed by drilling of the drill cylinder, the auxiliary cutting-off mechanism comprises a slotting cutter, a shaft connected with the slotting cutter, a single-rod driving mechanism connected with the shaft and a synchronous driving mechanism connected with the shaft, the single-rod driving mechanism is adapted to drive a single slotting cutter to rotate, and the synchronous driving mechanism is adapted to drive multiple slotting cutters to synchronously rotate. The mine rock drilling device can effectively realize drilling operation, effectively cut off the bottom of the rock column in the drill cylinder, has high operation efficiency, low labor intensity, simple structure, convenient operation and good use effect.

Description

Technical Field

[0001] This invention relates to the field of rock drilling technology, and in particular, to a rock drilling device for mining. Background Technology

[0002] In mining operations, commonly used cylindrical rock drilling equipment typically uses an external propulsion device to drive the drill barrel to rotate, and then uses a ring drill bit to drill in a ring shape, forming a cylindrical rock column. However, after drilling is completed, the bottom of the rock column formed inside the drill barrel often remains connected to the rock mass, making it difficult to remove completely. Traditional methods often rely on manual labor or auxiliary tools for secondary cutting, which is not only inefficient and labor-intensive but also poses safety risks.

[0003] Therefore, it is necessary to design a rock drilling equipment for mining to solve or overcome the above-mentioned technical problems. Summary of the Invention

[0004] In view of the above, the technical problem to be solved by the present invention is to provide a mining rock drilling equipment that can effectively realize drilling operations and effectively cut off the bottom of the rock column in the drill barrel. It has high operating efficiency, low labor intensity, simple structure, convenient operation, and good use effect.

[0005] To achieve the above objectives, the present invention provides a rock drilling device for mining, comprising: Mounting base, which can be connected to an external propulsion device; A drill barrel, one end of which is rotatably connected to the mounting base via a first bearing seat, and the other end of which is connected to an external drill bit; An internal drill bit assembly includes a connecting plate, a plurality of second bearing seats disposed on the connecting plate, and a drill rod rotatably connected to the second bearing seats. The drill head of the drill rod is adapted to penetrate into the rock column formed by the drill barrel. An auxiliary cutting mechanism includes multiple grooving cutters, a shaft connected to each grooving cutter, a single-bar drive mechanism connected to the shaft, and a synchronous drive mechanism connected to the shaft. The single-bar drive mechanism is adapted to drive a single grooving cutter to rotate, and the synchronous drive mechanism is adapted to drive multiple grooving cutters to rotate synchronously.

[0006] Preferably, the mining rock drilling equipment of the present invention further includes a first drive mechanism, the first drive mechanism including a first motor, a first gear connected to the first motor and a first gear ring meshing with the first gear, the first motor being fixed on the mounting base, the first gear ring being coaxially fixed on the drill barrel, and the first drive mechanism being adapted to drive the drill barrel to rotate.

[0007] Preferably, the mining rock drilling equipment of the present invention further includes a second drive mechanism, the second drive mechanism including a second cylinder and a second motor fixedly connected to the second cylinder, the second motor being fixedly connected to the connecting plate of the inner drill bit assembly, the second cylinder being adapted to drive the inner drill bit assembly to reciprocate along the central axis of the drill barrel, and the second motor being adapted to drive the inner drill bit assembly to rotate.

[0008] Preferably, the second cylinder is fixedly connected to the outer end face of the mounting base, and the piston rod of the second cylinder is adapted to pass through the mounting base and the drill barrel and then be fixedly connected to the second motor.

[0009] Preferably, the internal drill bit assembly is further provided with a third drive mechanism, which includes a third motor fixedly connected to the connecting plate, a plurality of transmission wheels, and a transmission chain connected to each of the transmission wheels. Each of the transmission wheels is fixedly connected to each of the drill rods and the output shaft of the third motor. The third drive mechanism is adapted to drive each of the drill rods to rotate synchronously.

[0010] Preferably, the inner wall of the drill barrel is provided with a mounting groove, the mounting groove including a drive cavity, a grooving cutter receiving cavity communicating with the drive cavity, and a gear ring cavity communicating with the grooving cutter receiving cavity, the grooving cutter being configured to be stored in the grooving cutter receiving cavity when not in operation.

[0011] Preferably, the single-bar drive mechanism includes a fourth cylinder, a transmission rod, and a slider threadedly connected to the transmission rod. The piston rod of the fourth cylinder is fixedly connected to the slider. The fourth cylinder is adapted to drive the slider to reciprocate along the central axis of the transmission rod, so as to enable the transmission rod to rotate, thereby driving the grooving cutter to extend out of the grooving cutter receiving cavity or to be stored in the grooving cutter receiving cavity.

[0012] Preferably, the transmission rod is coaxial with the shaft.

[0013] Preferably, the synchronous drive mechanism includes a fourth bearing housing disposed in the gear ring cavity, a fourth gear ring fixedly connected to the fourth bearing housing, and a plurality of fourth gears meshing with the fourth gear ring, each of the fourth gears being fixedly connected to each of the shafts.

[0014] Preferably, the mining rock drilling equipment of the present invention further includes a dust removal connector, which is disposed on the drill barrel and is adapted to be connected to an external dust collection device.

[0015] Through the above technical solution, the mining rock drilling equipment of the present invention includes a mounting base, a drill barrel, an inner drill bit assembly, and an auxiliary cutting mechanism. The mounting base can be connected to an external propulsion device. One end of the drill barrel is rotatably connected to the mounting base through a first bearing seat, and the other end is connected to an outer drill bit. The inner drill bit assembly includes a connecting plate, a plurality of second bearing seats disposed on the connecting plate, and a drill rod rotatably connected to the second bearing seats. The drill head of the drill rod is adapted to penetrate into the rock column formed by the drilling of the drill barrel. The auxiliary cutting mechanism includes a plurality of grooving cutters, a shaft corresponding to each grooving cutter, a single-rod drive mechanism connected to the shaft, and a synchronous drive mechanism connected to the shaft. The single-rod drive mechanism is adapted to drive a single grooving cutter to rotate, and the synchronous drive mechanism is adapted to drive a plurality of grooving cutters to rotate synchronously. In the mining rock drilling equipment of the present invention, the drill barrel is driven to rotate by the first drive mechanism, and drilling is carried out in conjunction with the external propulsion mechanism. The inner drill bit assembly is driven to approach the rock column formed inside the drill barrel by the second drive mechanism, and multiple drill rods are driven to insert into the rock column by the third drive mechanism. In conjunction with the auxiliary cutting mechanism, a groove is made at the bottom of the rock column. Under the rotation of the inner drill bit assembly, the rock column is broken at the groove, which facilitates the removal of the rock column. The equipment has high operating efficiency, simple structure, convenient operation, and good performance.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of a specific embodiment of the rock drilling equipment for mining described in this invention. Figure 2 This is a cross-sectional view of a specific embodiment of the mounting base and the top of the drill barrel described in the embodiments of the present invention; Figure 3 yes Figure 2 A magnified view of part A in the diagram; Figure 4 This is a cross-sectional view of a specific embodiment of the bottom of the drill barrel according to an embodiment of the present invention; Figure 5 yes Figure 4 A magnified view of part B in the diagram; Figure 6 This is a cross-sectional view of a specific embodiment of the grooving tool described in this invention, configured in a stowed state.

[0018] Explanation of reference numerals in the attached figures 1. Mounting base; 2. Drill barrel; 3. First bearing housing; 4. Drill bit; 5. Connecting plate; 6. Second bearing housing; 7. Drill rod; 8. First motor; 9. First gear; 10. First gear ring; 11. Second cylinder; 12. Second motor; 13. Third motor; 14. Transmission wheel; 15. Transmission chain; 16. Grooving cutter receiving cavity; 17. Shaft; 18. Third bearing housing; 19. Grooving cutter; 20. Drive cavity; 21. Transmission rod; 22. Spiral groove; 23. Slider; 24. Fourth cylinder; 25. Gear ring cavity; 26. Fourth gear ring; 27. Fourth bearing housing; 28. Fourth gear; 29. ​​Dust exhaust connector. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] In the description of this invention, it should be understood that the directional terms are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 6 As shown, the present invention provides a rock drilling device for mining, comprising: Mounting base 1, which can be connected to an external propulsion device; Drill barrel 2, one end of which is rotatably connected to the mounting base 1 via a first bearing seat 3, and the other end is connected to an external drill bit 4; The internal drill bit assembly includes a connecting plate 5, a plurality of second bearing seats 6 disposed on the connecting plate 5, and a drill rod 7 rotatably connected to the second bearing seats 6. The drill head of the drill rod 7 is adapted to penetrate into the rock column formed by the drill barrel 2. An auxiliary cutting mechanism includes a plurality of grooving cutters 19, a shaft 17 corresponding to each of the grooving cutters 19, a single-bar drive mechanism connected to the shaft 17, and a synchronous drive mechanism connected to the shaft 17. The single-bar drive mechanism is adapted to drive a single grooving cutter 19 to rotate, and the synchronous drive mechanism is adapted to drive a plurality of grooving cutters 19 to rotate synchronously.

[0024] In this invention, the drill barrel 2 is rotatably connected to the mounting base 1 via a first bearing seat 3, and an outer drill bit 4 is fixedly connected to the free end of the drill barrel 2 for drilling operations. An inner drill bit assembly is provided inside the drill barrel 2, which can reciprocate or rotate as a whole. Multiple drill rods 7 on the inner drill bit assembly can be individually controlled to rotate or remain stationary when the connecting plate 5 is stationary or rotating. An auxiliary cutting mechanism is also provided on the inner wall of the drill barrel 2, located on the inner wall near the outer drill bit 4, which can cut off the bottom of the rock column. The mounting base 1 is used to connect to an external propulsion device and has a connecting structure (not shown in the figure). The drill barrel 2 can rotate relative to the mounting base 1, thus enabling simultaneous forward propulsion and drilling operations. After the operation is completed, the inner drill bit assembly can be inserted into the rock column formed inside the drill barrel 2, and with the help of the auxiliary cutting mechanism, a slotting operation is performed at the bottom of the rock column. After the slotting operation is completed, the inner drill bit assembly rotates, causing the rock column to break at the slot, which makes it easy to remove the rock column and then directly complete the drilling operation, which significantly improves the operation efficiency and has a low operation difficulty.

[0025] As a specific embodiment of the present invention, the outer drill bit 4 and the drill barrel 2 are connected by bolts to form a detachable connection, which facilitates the replacement and maintenance of the outer drill bit 4, and enables the mining rock drilling equipment of this application to be applicable to drilling operations of more different rock strata, thereby improving the applicability and economy of the equipment.

[0026] As a preferred embodiment of the present invention, the mining rock drilling equipment of the present invention further includes a first drive mechanism, the first drive mechanism including a first motor 8, a first gear 9 connected to the first motor 8 and a first gear ring 10 meshing with the first gear 9, the first motor 8 being fixed on the mounting base 1, the first gear ring 10 being coaxially fixed on the drill barrel 2, and the first drive mechanism being adapted to drive the drill barrel 2 to rotate.

[0027] As a specific embodiment of the present invention, such as Figure 1As shown, the first drive mechanism includes a first motor 8, a first gear 9, and a first gear ring 10. A first motor mounting plate is provided on the mounting base 1, and the first motor 8 is fixedly connected to the first motor mounting plate. The first gear ring 10 is fixedly sleeved on the drill barrel 2 and is coaxially arranged with the drill barrel 2. The first gear 9 is fixedly connected to the output shaft of the first motor 8. Thus, the drill barrel 2 can be driven to rotate by the first motor 8. In this way, the transmission method of the first motor 8, the first gear 9, and the first gear ring 10 can achieve smooth transmission while maintaining a large torque. It is suitable for the rotation drive of large-diameter drill barrels. The structure is reliable and easy to maintain, effectively ensuring the stability and accuracy of the rotation of the drill barrel 2, and providing reliable power support for drilling operations.

[0028] As a preferred embodiment of the present invention, the mining rock drilling equipment of the present invention further includes a second drive mechanism, the second drive mechanism including a second cylinder 11 and a second motor 12 fixedly connected to the second cylinder 11, the second motor 12 being fixedly connected to the connecting plate 5 of the inner drill bit assembly, the second cylinder 11 being adapted to drive the inner drill bit assembly to reciprocate along the central axis of the drill barrel 2, and the second motor 12 being adapted to drive the inner drill bit assembly to rotate.

[0029] In a preferred embodiment of the present invention, the second cylinder 11 is fixedly connected to the outer end face of the mounting base 1, and the piston rod of the second cylinder 11 is adapted to pass through the mounting base 1 and the drill barrel 2 and then be fixedly connected to the second motor 12.

[0030] As a specific embodiment of the present invention, such as Figure 2 As shown, the second drive mechanism includes a second cylinder 11 and a second motor 12. The main body of the second cylinder 11 is connected to the outer end face of the mounting base 1. The piston rod of the second cylinder passes through the mounting base 1 and the drill barrel 2 in sequence and extends into the internal cavity of the drill barrel 2, and is connected to the second motor 12. The output shaft of the second motor 12 is connected to the connecting plate 5. The synchronous axial reciprocating motion of the second motor 12 and the connecting plate 5 is realized by the extension and retraction of the second cylinder 11. The second motor 12 can drive the connecting plate 5 to rotate. The structure is simple, the response speed is fast, and it is convenient to accurately control the insertion position, insertion depth and rotation timing of the drill rod 7. It realizes the precise movement and rotation of the entire internal drill bit assembly. At the same time, it also provides a flexible operating space for the insertion of the drill rod 7 and the disconnection of the rock column.

[0031] In a preferred embodiment of the present invention, the internal drill bit assembly is further provided with a third drive mechanism. The third drive mechanism includes a third motor 13 fixedly connected to the connecting plate 5, a plurality of transmission wheels 14, and a transmission chain 15 connected to each of the transmission wheels 14. Each of the transmission wheels 14 is fixedly connected to each of the drill rods 7 and the output shaft of the third motor 13. The third drive mechanism is adapted to drive each of the drill rods 7 to rotate synchronously.

[0032] As a specific embodiment of the present invention, such as Figure 3 As shown, the third drive mechanism includes a third motor 13, multiple transmission wheels 14, and a transmission chain 15. The transmission wheels 14 are fixedly connected to the drill rod 7 and the output shaft of the third motor 13, respectively. The transmission wheels 14 mounted on the output shaft of the third motor 13 can drive the transmission chain 15 to move, thereby driving the other transmission wheels 14 mounted on the drill rod 7 to rotate, and thus driving each drill rod 7 to rotate synchronously. This transmission method, which uses the third motor 13 in conjunction with the transmission chain 15 to drive multiple drill rods 7, can effectively achieve synchronous rotation of multiple drill rods 7, enabling them to penetrate the rock column synchronously. This effectively ensures the uniformity of force on the internal drill bit assembly, avoids uneven loading, and has a compact structure and high transmission efficiency, providing effective protection for subsequent effective cutting.

[0033] In a preferred embodiment of the present invention, the inner wall of the drill barrel 2 is provided with a mounting groove, the mounting groove including a drive cavity 20, a grooving cutter receiving cavity 16 communicating with the drive cavity 20, and a gear ring cavity 25 communicating with the grooving cutter receiving cavity 16. The grooving cutter 19 is configured to be stored in the grooving cutter receiving cavity 16 when not in operation.

[0034] As a specific embodiment of the present invention, such as Figure 4 and Figure 5 As shown, the inner wall of the drill barrel 2 is provided with a mounting groove for accommodating the single-rod drive mechanism and the synchronous drive mechanism, so that it can both drive the grooving cutter 19 to be stored and unfolded, and can also not affect the movement of the inner drill bit assembly.

[0035] In a preferred embodiment of the present invention, the single-bar drive mechanism includes a fourth cylinder 24, a transmission rod 21, and a slider 23 threadedly connected to the transmission rod 21. The piston rod of the fourth cylinder 24 is fixedly connected to the slider 23. The fourth cylinder 24 is adapted to drive the slider 23 to reciprocate along the central axis of the transmission rod 21, thereby enabling the transmission rod 21 to rotate and thus drive the grooving cutter 19 to extend out of or be stored in the grooving cutter receiving cavity 16. This retractable design of the grooving cutter 19, when stored in the grooving cutter receiving cavity 16, does not affect the reciprocating motion of the internal drill bit assembly and also avoids wear and damage to the grooving cutter 19. During operation, the grooving cutter 19 extends out of the grooving cutter receiving cavity 16 to perform grooving operations, which is flexible and reliable. The auxiliary cutting mechanism uses the grooving cutter 19 to groove the bottom of the rock column, providing a pre-fracture point for subsequent rock column cutting, reducing the difficulty of cutting and energy consumption.

[0036] In a preferred embodiment of the present invention, the transmission rod 21 is coaxially arranged with the shaft 17.

[0037] As a specific embodiment of the present invention, such as Figure 4 As shown, the single-bar drive mechanism includes a fourth cylinder 24, a transmission rod 21, and a slider 23. The transmission rod 21 is provided with a spiral groove 22. The slider 23 and the transmission rod 21 are slidably connected through the spiral groove 22, so that the transmission rod 21 can rotate forward or reverse during the up and down movement of the slider 23, thereby driving the grooving knife 19 to be stored and unfolded.

[0038] In a specific embodiment of the present invention, the transmission rod 21 and the shaft 17 are coaxially arranged. One end of the shaft 17 is fixedly connected to the grooving cutter 19, and the other end is connected to the third bearing seat 18. The structure is simple and facilitates the extension or retraction of the grooving cutter. The fourth cylinder 24 pushes the slider 23 to move up and down along the spiral groove 22 on the transmission rod 21, cleverly converting the linear motion of the slider 23 into the rotational motion of the shaft 17. The structure is ingenious, the transmission is stable, and it is suitable for the conversion between linear and rotational motions in confined spaces. Furthermore, the synchronization effect is better when controlled by the structure of the spiral groove 22.

[0039] In a preferred embodiment of the present invention, the synchronous drive mechanism includes a fourth bearing seat 27 disposed in the gear ring cavity 25, a fourth gear ring 26 fixedly connected to the fourth bearing seat 27, and a plurality of fourth gears 28 meshing with the fourth gear ring 26, each of the fourth gears 28 being fixedly connected to each of the shafts 17.

[0040] As a specific embodiment of the present invention, such as Figure 5As shown, the synchronous drive mechanism includes a fourth bearing housing 27, a fourth gear ring 26, and fourth gears 28. The fourth bearing housing 27 is fixed inside the gear ring cavity 25, and the fourth gear ring 26 is rotatably connected to the gear ring cavity 25 through the fourth bearing housing 27. Each of the fourth gears 28 meshes with the fourth gear ring 26. Thus, by employing a transmission method in which the fourth gear ring 26 meshes with multiple fourth gears 28, multi-axis synchronous rotation is achieved. This method offers high transmission accuracy, good synchronization, and is suitable for and widely applicable to the synchronous grooving requirements of multiple grooving cutters 19 arranged circumferentially.

[0041] In this invention, the working mode of using a single-bar drive mechanism combined with a synchronous drive mechanism can ensure that multiple grooving cutters 19 move synchronously, achieve uniform grooving, and avoid incomplete fracture or uneven cracks in the rock column due to uneven force. Furthermore, after contacting the rock column, the grooving cutter 19 can synchronously cooperate with the rotating drum of the drill barrel 2 to perform grooving operations. Both can be controlled independently or operate synchronously.

[0042] As a preferred embodiment of the present invention, the mining rock drilling equipment of the present invention further includes a dust removal connector 29, which is disposed on the drill barrel 2. The dust removal connector 29 is suitable for connection with an external dust collection device, which can remove the dust generated during the drilling process in a timely manner, improve the working environment, and increase the equipment life and operational safety.

[0043] As a relatively preferred embodiment of the hydraulic fracturing and sealing device of the present invention, the mining rock drilling equipment of the present invention includes a mounting base 1, a drill barrel 2, an inner drill bit assembly, an auxiliary cutting mechanism, a first driving mechanism, a second driving mechanism, a third driving mechanism, and a dust discharge connector 29; wherein, the mounting base 1 can be connected to an external propulsion device; one end of the drill barrel 2 is rotatably connected to the mounting base 1 through a first bearing seat 3, and the other end is connected to an outer drill bit 4; the inner drill bit assembly includes a connecting plate 5, a plurality of second bearing seats 6 disposed on the connecting plate 5, and a drill rod 7 rotatably connected to the second bearing seats 6, the drill head of the drill rod 7 being adapted to penetrate into the rock column formed by the drilling of the drill barrel 2; the auxiliary cutting mechanism includes a plurality of grooving cutters 19, a shaft 17 correspondingly connected to each of the grooving cutters 19, a single-rod drive mechanism connected to the shaft 17, and a synchronous drive mechanism connected to the shaft 17, the single-rod drive mechanism being adapted to drive a single grooving cutter 19 to rotate, and the synchronous drive mechanism being adapted to drive a plurality of grooving cutters 19 to rotate synchronously. The first drive mechanism includes a first motor 8, a first gear 9 connected to the first motor 8, and a first gear ring 10 meshing with the first gear 9. The first motor 8 is fixed on the mounting base 1, and the first gear ring 10 is coaxially fixed on the drill barrel 2. The first drive mechanism is adapted to drive the drill barrel 2 to rotate. The second drive mechanism includes a second cylinder 11 and a second motor 12 fixedly connected to the second cylinder 11. The second motor 12 is fixedly connected to the connecting plate 5 of the inner drill bit assembly. The second cylinder 11 is adapted to drive the inner drill bit assembly to reciprocate along the central axis of the drill barrel 2, and the second motor 12 is adapted to drive the inner drill bit assembly to rotate. The second cylinder 11 is fixedly connected to the outer end face of the mounting base 1, and the piston rod of the second cylinder 11 is adapted to pass through the mounting base 1 and the drill barrel 2 and then be fixedly connected to the second motor 12. The third drive mechanism is mounted on the inner drill bit assembly. The third drive mechanism includes a third motor 13 fixedly connected to the connecting plate 5, several transmission wheels 14, and a transmission chain 15 connected to each of the transmission wheels 14. Each transmission wheel 14 is fixedly connected to each of the drill rods 7 and the output shaft of the third motor 13. The third drive mechanism is adapted to drive each of the drill rods 7 to rotate synchronously. The inner wall of the drill barrel 2 is provided with a mounting groove. The mounting groove includes a drive cavity 20, a grooving cutter receiving cavity 16 communicating with the drive cavity 20, and a gear ring cavity 25 communicating with the grooving cutter receiving cavity 16. The grooving cutter 19 is configured to be stored in the grooving cutter receiving cavity 16 when not in operation.The single-bar drive mechanism includes a fourth cylinder 24, a transmission rod 21, and a slider 23 threadedly connected to the transmission rod 21. The piston rod of the fourth cylinder 24 is fixedly connected to the slider 23. The fourth cylinder 24 is adapted to drive the slider 23 to reciprocate along the central axis of the transmission rod 21, thereby enabling the transmission rod 21 to rotate and thus drive the grooving cutter 19 to extend out of or be housed within the grooving cutter receiving cavity 16. The transmission rod 21 is coaxially arranged with the shaft 17. The synchronous drive mechanism includes a fourth bearing seat 27 disposed in the gear ring cavity 25, a fourth gear ring 26 fixedly connected to the fourth bearing seat 27, and a plurality of fourth gears 28 meshing with the fourth gear ring 26. Each of the fourth gears 28 is correspondingly fixedly connected to each of the shafts 17. The dust exhaust connector 29 is disposed on the drill barrel 2 and is adapted to be connected to an external dust collection device.

[0044] The operation process of the mining rock drilling equipment of the present invention is as follows: During the preparation phase, the external propulsion equipment is connected to the mining rock drilling equipment of the present invention via the mounting base 1, and the dust removal connector 29 is connected to the external dust collection equipment and positioned to the rock stratum to be drilled.

[0045] During the drilling stage, the first drive mechanism is activated, and the first motor 8 drives the first gear 9 to rotate, thereby driving the drill barrel 2 to rotate. At the same time, the external propulsion equipment pushes the mining rock drilling equipment of the present invention forward synchronously. During the rotation of the drill barrel 2, a rock column is gradually formed inside the drill barrel 2. Meanwhile, the external dust collection equipment removes dust from the borehole in real time.

[0046] During the cutoff preparation stage, after drilling is completed, the second drive mechanism is activated. The second cylinder 11 pushes the connecting plate 5 to move towards the rock column. When the drill rod 7 abuts against the top of the rock column, the third drive mechanism is activated. The third motor 13 drives multiple drill rods 7 to rotate synchronously, so that the drill rod 7 rotates and penetrates into the top of the rock column, achieving mechanical engagement with the rock column.

[0047] During the cutting phase, the fourth drive phase is initiated. The fourth cylinder 24 pushes the slider 23 to rotate along the transmission rod 21, causing the transmission rod 21 to rotate. This causes the grooving cutter 19 to extend from the grooving cutter receiving cavity 16 and contact the bottom perimeter of the rock column. Through the action of the synchronous drive mechanism, multiple grooving cutters 19 rotate synchronously and contact the rock column. In conjunction with the rotation of the drill barrel 2, an annular groove is opened around the bottom perimeter of the rock column. After grooving is completed, the grooving cutter 19 is retracted into the grooving cutter receiving cavity 16. Then, the second motor 12 drives the connecting plate 5 to rotate, and multiple meshing drill rods 7 drive the rock column to rotate synchronously, causing the rock column to break along the annular groove.

[0048] During the extraction phase, the rock column inside can be extracted synchronously by resetting the drill barrel 2. If the rock column separates from the drill barrel 2, it needs to be removed manually.

[0049] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0051] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A rock drilling device for mining, characterized in that, include: Mounting base (1), which can be connected to an external propulsion device; Drill barrel (2), one end of which is rotatably connected to the mounting base (1) via a first bearing seat (3), and the other end is connected to an external drill bit (4); The internal drill bit assembly includes a connecting plate (5), a plurality of second bearing seats (6) disposed on the connecting plate (5), and a drill rod (7) rotatably connected to the second bearing seats (6), wherein the drill head of the drill rod (7) is adapted to penetrate into the rock column formed by the drill barrel (2). An auxiliary cutting mechanism is provided, comprising a plurality of grooving cutters (19), a shaft (17) corresponding to each of the grooving cutters (19), a single-bar drive mechanism connected to the shaft (17), and a synchronous drive mechanism connected to the shaft (17). The single-bar drive mechanism is adapted to drive a single grooving cutter (19) to rotate, and the synchronous drive mechanism is adapted to drive a plurality of grooving cutters (19) to rotate synchronously.

2. The mining rock drilling equipment according to claim 1, characterized in that, It also includes a first drive mechanism, which includes a first motor (8), a first gear (9) connected to the first motor (8), and a first gear ring (10) meshing with the first gear (9). The first motor (8) is fixed on the mounting base (1), and the first gear ring (10) is coaxially fixed on the drill barrel (2). The first drive mechanism is adapted to drive the drill barrel (2) to rotate.

3. The mining rock drilling equipment according to claim 1, characterized in that, It also includes a second drive mechanism, which includes a second cylinder (11) and a second motor (12) fixedly connected to the second cylinder (11). The second motor (12) is fixedly connected to the connecting plate (5) of the inner drill bit assembly. The second cylinder (11) is adapted to drive the inner drill bit assembly to reciprocate along the central axis of the drill barrel (2), and the second motor (12) is adapted to drive the inner drill bit assembly to rotate.

4. The mining rock drilling equipment according to claim 3, characterized in that, The second cylinder (11) is fixedly connected to the outer end face of the mounting base (1), and the piston rod of the second cylinder (11) is adapted to pass through the mounting base (1) and the drill barrel (2) and then be fixedly connected to the second motor (12).

5. The mining rock drilling equipment according to claim 1, characterized in that, The internal drill bit assembly is also provided with a third drive mechanism, which includes a third motor (13) fixedly connected to the connecting plate (5), a plurality of transmission wheels (14) and a transmission chain (15) connected to each of the transmission wheels (14). Each of the transmission wheels (14) is fixedly connected to each of the drill rods (7) and the output shaft of the third motor (13). The third drive mechanism is adapted to drive each of the drill rods (7) to rotate synchronously.

6. The mining rock drilling equipment according to any one of claims 1 to 5, characterized in that, The inner wall of the drill barrel (2) is provided with an installation groove, which includes a drive cavity (20), a grooving cutter receiving cavity (16) communicating with the drive cavity (20), and a gear ring cavity (25) communicating with the grooving cutter receiving cavity (16). The grooving cutter (19) is configured to be stored in the grooving cutter receiving cavity (16) when not in operation.

7. The mining rock drilling equipment according to claim 6, characterized in that, The single-bar drive mechanism includes a fourth cylinder (24), a transmission rod (21), and a slider (23) threadedly connected to the transmission rod (21). The piston rod of the fourth cylinder (24) is fixedly connected to the slider (23). The fourth cylinder (24) is adapted to drive the slider (23) to reciprocate along the central axis of the transmission rod (21) so that the transmission rod (21) can rotate, thereby driving the grooving knife (19) to extend out of the grooving knife receiving cavity (16) or be stored in the grooving knife receiving cavity (16).

8. The mining rock drilling equipment according to claim 7, characterized in that, The transmission rod (21) is coaxially arranged with the shaft (17).

9. The mining rock drilling equipment according to claim 6, characterized in that, The synchronous drive mechanism includes a fourth bearing housing (27) disposed in the gear ring cavity (25), a fourth gear ring (26) fixedly connected to the fourth bearing housing (27), and a plurality of fourth gears (28) meshing with the fourth gear ring (26), each of the fourth gears (28) being fixedly connected to each of the shafts (17).

10. The mining rock drilling equipment according to any one of claims 1 to 5, characterized in that, It also includes a dust exhaust connector (29), which is disposed on the drill barrel (2) and is adapted to be connected to an external dust collection device.

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