A borehole drilling apparatus for a sloping rock face
By designing a borehole drilling device for sloping rock walls, synchronous support and drilling are achieved using support components and calibration parts, solving the problems of borehole collapse and angle deviation in existing technologies, and realizing the stability and accuracy of the drilling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING JIAOTONG UNIV
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-29
AI Technical Summary
In existing technologies, there is a risk of collapse when the drill bit is removed after drilling is completed in sloping rock walls, and angle deviations are prone to occur when installing support structures later, making it impossible to achieve the stability of simultaneous support and drilling.
A drilling device for sloping rock walls was designed, including a base plate, a drilling device, a support assembly, and a calibration component. The support component is synchronously pushed and precisely positioned by a mounting frame, and fixed to the rock wall by a stabilizing component to ensure stability and angular accuracy during the drilling process.
It achieves stable support for the blast hole during the drilling process, prevents collapse, ensures synchronization between drilling and the support structure, ensures accurate angles, and is simple and convenient to operate.
Smart Images

Figure CN120486931B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drilling equipment technology, and in particular to a drilling device for blast holes on sloping rock walls. Background Technology
[0002] In construction sites such as tunnel construction or rock face construction, where the rock is too hard or the geographical environment makes excavation impossible, construction workers often choose to use fixed-point blasting to excavate the rock face or clear obstacles. In this case, it is necessary to drill blast holes at specific locations, put explosives inside, and then blast.
[0003] In existing technologies, the drill bit is usually removed after drilling is completed, and then a support pipe or other structure is installed in the borehole to ensure its stability. However, the borehole still faces the risk of collapse during the process of removing the drill bit, making it impossible to synchronize the support and drilling, thus failing to guarantee the stability of the borehole. Furthermore, there is a possibility of deviation in the installation angle when installing the support structure later.
[0004] Therefore, there is an urgent need for a drilling device for sloping rock walls to solve the above problems. Summary of the Invention
[0005] The purpose of this invention is to provide a drilling device for blast holes on sloping rock walls, so as to solve the problems existing in the prior art.
[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides a drilling device for blast holes on sloping rock walls, comprising:
[0007] A base plate is placed on a sloping rock wall, and a stabilizing element is provided on the base plate, which is connected to the sloping rock wall through the stabilizing element;
[0008] The drilling device is mounted on the base plate via a mounting bracket and is used to drill holes in the sloping rock wall;
[0009] A support assembly includes a support member and a mounting member. The support member is adapted to support the borehole, and the mounting member is disposed on the mounting bracket. When the drilling device drills a hole, the mounting member pushes the support member into the borehole.
[0010] A plurality of calibration components are arranged circumferentially on the mounting frame, and the support is located in the middle of the plurality of calibration components. The calibration components are used to make the support coaxially arranged with the drill bit on the drilling device.
[0011] According to the present invention, a blasting device for sloping rock walls is provided, wherein the support member includes a plurality of support cylinders connected end to end, the support cylinder includes two support half cylinders, the top end of the support half cylinder is provided with a connecting groove, the bottom end of the support half cylinder is fixedly connected with a connecting block, and the connecting block and the connecting groove on two adjacent support half cylinders are connected in the axial direction.
[0012] According to the present invention, a blasting device for sloping rock walls is provided. The mounting component includes two lifting pipes. A support ring is rotatably connected to the mounting frame. The two lifting pipes are slidably connected to the support ring. A connecting buckle is hinged to the bottom end of each lifting pipe. The connecting buckle is adapted to the connecting groove. A control component is provided on the mounting frame. The control component is connected to the lifting pipe.
[0013] According to the present invention, a blasting device for sloping rock walls includes a control component comprising an outer drive ring rotatably connected to a mounting frame, an inner drive ring fixedly connected to the mounting frame, a first drive gear meshing between the outer drive ring and the inner drive ring, a threaded rod fixedly connected inside the first drive gear, a slider rotatably connected to the top end of the threaded rod passing through the first drive gear, the slider being slidably connected to the mounting frame, the bottom end of the threaded rod being threadedly connected to the top end of a lifting pipe, a drive motor fixedly connected to the mounting frame, and a second drive gear fixedly connected to the output shaft of the drive motor, the second drive gear meshing with the outer drive ring.
[0014] According to the present invention, a blast hole drilling device for sloping rock walls is provided, wherein the calibration component includes a slide rail fixedly connected to the mounting frame, a first moving block and a second moving block are slidably connected to the top and bottom ends of the slide rail, respectively, and a first clamping plate and a second clamping plate are fixedly connected to one end of the first moving block and the second moving block, respectively, the first clamping plate is in contact with the drilling device, and the second clamping plate is in contact with the outer wall of the supporting half-cylinder.
[0015] According to the present invention, a blasting device for sloping rock walls is provided, wherein an electric telescopic rod is fixedly connected to the mounting frame, the telescopic end of the electric telescopic rod is fixedly connected to the mounting frame, and a push wheel is rotatably connected inside the mounting frame, wherein the first moving block and the second moving block respectively mesh with the push wheel.
[0016] According to the present invention, a blasting device for sloping rock walls is provided, wherein the stabilizing member includes a stabilizing nail, and a through hole is provided on the base plate, through which the stabilizing nail is installed on the sloping rock wall.
[0017] According to the present invention, a blasting device for sloping rock walls is provided, wherein the side walls of the supporting half-cylinder are respectively provided with a plug-in block and a plug-in hole, and two supporting half-cylinders on the same supporting cylinder are connected through the plug-in block and the plug-in hole.
[0018] According to the present invention, a blasting device for sloping rock walls is provided, wherein threaded holes are provided on both the connecting block and the connecting groove, and connecting bolts are installed in the threaded holes.
[0019] According to the present invention, a blasting device for sloping rock walls is provided, wherein a torsion spring is provided between the connecting buckle and the lifting pipe, and the two ends of the torsion spring are respectively fixedly connected to the lifting pipe and the connecting buckle.
[0020] Compared with the prior art, the present invention has the following advantages and technical effects:
[0021] This invention provides a drilling device for blast holes on sloping rock walls. In use, a support is placed on an mounting piece and positioned at the drilling location. A drilling device is then used to drill the hole. During drilling, the mounting piece pushes the support into the blast hole, providing support. Simultaneously, a calibration piece ensures precise positioning of the drill hole and the support during drilling. This invention features a simple structure, convenient operation, and provides stable support for the blast hole, preventing collapse, while ensuring synchronized angles between the drill hole and the support structure. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0024] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;
[0025] Figure 3 For the present invention Figure 1 Enlarged view of a section at point B in the middle;
[0026] Figure 4 This is a schematic diagram of the connection state of the support cylinder of the present invention;
[0027] Figure 5 This is a schematic diagram of the supporting half-cylinder in the separated state according to the present invention;
[0028] The components are as follows: 1. Base plate; 2. Drilling device; 3. Mounting bracket; 4. Support half-cylinder; 5. Connecting groove; 6. Connecting block; 7. Insertion block; 8. Insertion hole; 9. Threaded hole; 10. Connecting bolt; 11. Lifting tube; 12. Support ring; 13. Connecting buckle; 14. Torsion spring; 15. Outer drive ring; 16. Inner drive ring; 17. First drive gear; 18. Threaded rod; 19. Drive motor; 20. Second drive gear; 21. Slide rail; 22. First moving block; 23. Second moving block; 24. First clamping plate; 25. Second clamping plate; 26. Electric telescopic rod; 27. Mounting frame; 28. Push wheel; 29. Stabilizing nail; 30. Through hole; 31. Slider. Detailed Implementation
[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0031] Reference Figures 1-5 This invention provides a drilling device for blast holes on sloping rock walls, comprising:
[0032] The base plate 1 is placed on the sloping rock wall. The base plate 1 is equipped with a stabilizing component and is connected to the sloping rock wall through the stabilizing component.
[0033] Drilling device 2 is mounted on base plate 1 via mounting bracket 3 and is used to drill holes in sloping rock walls;
[0034] The support assembly includes a support member and a mounting member. The support member is adapted to the borehole for supporting the borehole. The mounting member is mounted on the mounting bracket 3, and when the drilling device 2 drills a hole, the mounting member pushes the support member into the borehole.
[0035] Several calibration components are arranged circumferentially on the mounting frame 3, and a support is located in the middle of the calibration components. The calibration components are used to make the support coaxial with the drill bit on the drilling device 2.
[0036] As an optional implementation, the support includes several support cylinders connected end to end. Each support cylinder includes two support half-cylinders 4. A connecting groove 5 is provided at the top of the support half-cylinder 4, and a connecting block 6 is fixedly connected to the bottom of the support half-cylinder 4. The connecting blocks 6 and connecting grooves 5 on two adjacent support half-cylinders 4 are connected in the axial direction.
[0037] In one embodiment of this application, the blast hole is supported by a support cylinder.
[0038] As an optional implementation, the mounting component includes two lifting pipes 11, a support ring 12 is rotatably connected to the mounting frame 3, the two lifting pipes 11 are slidably connected to the support ring 12 respectively, a connecting buckle 13 is hinged to the bottom end of the lifting pipe 11, the connecting buckle 13 is adapted to the connecting groove 5, and a control component is provided on the mounting frame 3, which is connected to the lifting pipe 11.
[0039] As an optional implementation, the control component includes an outer drive ring 15 rotatably connected to the mounting bracket 3, an inner drive ring 16 fixedly connected to the mounting bracket 3, a first drive gear 17 meshing between the outer drive ring 15 and the inner drive ring 16, a threaded rod 18 fixedly connected inside the first drive gear 17, a slider 31 rotatably connected through the top end of the threaded rod 18, the slider 31 being slidably connected to the mounting bracket 3, the bottom end of the threaded rod 18 being threadedly connected to the top end of the lifting tube 11, a drive motor 19 fixedly connected to the mounting bracket 3, a second drive gear 20 fixedly connected to the output shaft of the drive motor 19, and the second drive gear 20 meshing with the outer drive ring 15.
[0040] In one embodiment of this application, the first drive gear 17 is rotated and moved circumferentially by the drive motor 19, thereby controlling the lifting tube 11 to rise and fall and rotate circumferentially, and driving the support cylinder to move.
[0041] As an optional implementation, the calibration component includes a slide rail 21 fixedly connected to the mounting bracket 3. A first moving block 22 and a second moving block 23 are slidably connected to the top and bottom ends of the slide rail 21, respectively. A first clamping plate 24 and a second clamping plate 25 are fixedly connected to one end of the first moving block 22 and the second moving block 23, respectively. The first clamping plate 24 is in contact with the drilling device 2, and the second clamping plate 25 is in contact with the outer wall of the supporting half-cylinder 4.
[0042] In one embodiment of this application, the drilling device 2 and the supporting half-cylinder 4 are clamped by the first clamping plate 24 and the second clamping plate 25 respectively, so as to ensure stability during the drilling process.
[0043] As an optional implementation, an electric telescopic rod 26 is fixedly connected to the mounting frame 3, and a mounting frame 27 is fixedly connected to the telescopic end of the electric telescopic rod 26. A push wheel 28 is rotatably connected inside the mounting frame 27, and the first moving block 22 and the second moving block 23 respectively mesh with the push wheel 28.
[0044] In one embodiment of this application, the mounting frame 27 is moved by the electric telescopic rod 26. When the mounting frame 27 moves, it drives the push wheel 28 to move, which in turn drives the first moving block 22 and the second moving block 23 to move synchronously. The drilling device 2 and the support half-cylinder 4 are connected in sequence to achieve self-centering positioning and clamping of the two, ensuring the stability of the angle during drilling.
[0045] As an optional implementation, the stabilizing component includes a stabilizing nail 29, and a through hole 30 is provided on the base plate 1. The stabilizing nail 29 is installed on the sloping rock wall through the through hole 30.
[0046] In one embodiment of this application, a stabilizing nail 29 is driven into the inclined rock wall through a through hole 30 to ensure the stable installation of the entire device on the inclined rock wall.
[0047] As an optional implementation, the side walls of the supporting half-cylinder 4 are respectively provided with insertion blocks 7 and insertion holes 8, and the two supporting half-cylinders 4 on the same supporting cylinder are connected by insertion blocks 7 and insertion holes 8.
[0048] In one embodiment of this application, the two supporting half-cylinders 4 are connected by inserting the provided plug-in block 7 into the plug-in hole 8.
[0049] As an optional implementation, threaded holes 9 are provided on both the connecting block 6 and the connecting groove 5, and connecting bolts 10 are installed in the threaded holes 9.
[0050] In one embodiment of this application, a connecting bolt 10 is threaded into a threaded hole 9 to ensure a stable connection between two adjacent support half-cylinders 4.
[0051] As an optional implementation, a torsion spring 14 is provided between the connecting buckle 13 and the lifting tube 11, with both ends of the torsion spring 14 fixedly connected to the lifting tube 11 and the connecting buckle 13, respectively.
[0052] In one embodiment of this application, the connecting buckle 13 is hinged to achieve docking between the connecting buckle 13 and the connecting groove 5. After docking, the connecting buckle 13 is reset by the torsion spring 14 to ensure a stable connection between the connecting buckle 13 and the connecting groove 5.
[0053] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, 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.
[0054] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims
1. A drilling device for blast holes on sloping rock walls, characterized in that, include: A base plate (1) is placed on a sloping rock wall. A stabilizing element is provided on the base plate (1), and the base plate (1) is connected to the sloping rock wall through the stabilizing element. The drilling device (2) is mounted on the base plate (1) via a mounting bracket (3) and is used to drill holes in the sloping rock wall; The support assembly includes a support member and a mounting member. The support member is adapted to the borehole for supporting the borehole. The mounting member is disposed on the mounting frame (3), and when the drilling device (2) drills a hole, the mounting member pushes the support member into the borehole. A number of calibration components are arranged circumferentially on the mounting frame (3), and the support is located in the middle of the number of calibration components. The calibration components are used to make the support coaxially arranged with the drill bit on the drilling device (2). The support component includes several support cylinders connected end-to-end. Each support cylinder includes two support half-cylinders (4). A connecting groove (5) is provided at the top of each support half-cylinder (4). A connecting block (6) is fixedly connected to the bottom of each support half-cylinder (4). The connecting blocks (6) on two adjacent support half-cylinders (4) are connected to the connecting groove (5) in the axial direction. The mounting component includes two lifting tubes (11). A support ring (12) is rotatably connected to the mounting frame (3). The two lifting tubes (11) are slidably connected to the support ring (12). A connecting buckle (13) is hinged to the bottom of each lifting tube (11). The mounting frame (3) is equipped with a control component that is compatible with the connecting groove (5) and is connected to the lifting tube (11). The calibration component includes a slide rail (21) fixedly connected to the mounting frame (3). The top and bottom ends of the slide rail (21) are slidably connected to a first moving block (22) and a second moving block (23). One end of the first moving block (22) and the second moving block (23) are fixedly connected to a first clamping plate (24) and a second clamping plate (25). The first clamping plate (24) is in contact with the drilling device (2), and the second clamping plate (25) is in contact with the outer wall of the supporting half cylinder (4).
2. The blasting device for inclined rock walls according to claim 1, characterized in that: The control component includes an outer drive ring (15) rotatably connected to the mounting bracket (3), an inner drive ring (16) fixedly connected to the mounting bracket (3), a first drive gear (17) meshing between the outer drive ring (15) and the inner drive ring (16), a threaded rod (18) fixedly connected inside the first drive gear (17), a slider (31) rotatably connected through the top end of the threaded rod (18) through the first drive gear (17), the slider (31) slidingly connected to the mounting bracket (3), the bottom end of the threaded rod (18) threadedly connected to the top end of the lifting tube (11), a drive motor (19) fixedly connected to the mounting bracket (3), a second drive gear (20) fixedly connected to the output shaft of the drive motor (19), and the second drive gear (20) meshing with the outer drive ring (15).
3. A blasting device for sloping rock walls according to claim 1, characterized in that: An electric telescopic rod (26) is fixedly connected to the mounting frame (3). An installation frame (27) is fixedly connected to the telescopic end of the electric telescopic rod (26). A push wheel (28) is rotatably connected inside the installation frame (27). The first moving block (22) and the second moving block (23) respectively mesh with the push wheel (28).
4. A drilling device for blast holes on sloping rock walls according to claim 1, characterized in that: The stabilizing component includes a stabilizing nail (29), and a through hole (30) is provided on the base plate (1). The stabilizing nail (29) is installed on the sloping rock wall through the through hole (30).
5. A drilling device for blast holes on sloping rock walls according to claim 1, characterized in that: The side walls of the support half-cylinder (4) are respectively provided with a plug-in block (7) and a plug-in hole (8), and the two support half-cylinders (4) on the same support cylinder are connected through the plug-in block (7) and the plug-in hole (8).
6. A blasting device for sloping rock walls according to claim 1, characterized in that: Both the connecting block (6) and the connecting groove (5) are provided with threaded holes (9), and connecting bolts (10) are installed in the threaded holes (9).
7. A drilling device for blast holes on sloping rock walls according to claim 1, characterized in that: A torsion spring (14) is provided between the connecting buckle (13) and the lifting tube (11), and the two ends of the torsion spring (14) are fixedly connected to the lifting tube (11) and the connecting buckle (13) respectively.