Operating arm for a double-curve-arm rock drilling jumbo

Abstract

The utility model relates to tunnel construction technical field and disclose a kind of operating arm of double-curved arm rock drill rig, including support seat and bearing seat, the side of bearing seat is equipped with connecting seat, the operating end of connecting seat is connected with rock drill rig, to make rock drill rig drive bearing seat move, the inside of bearing seat is equipped with first drive mechanism, bearing seat is connected with support seat by first drive mechanism, the upper surface position of support seat is adjustable at bearing seat, the upper surface of support seat is equipped with driving motor, the utility model provides a kind of operating arm of double-curved arm rock drill rig, by setting in the abutting mechanism of support seat one end, when support seat moves to one end, abutting mechanism can be adjusted position in advance, adjust the abutting position of abutting mechanism, so that the one end of support seat is in rock surface in the process of punching, reduce in the process of punching, improve the accuracy and stability of punching.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to the operating arm of a double-bend rock drilling rig. Background Technology

[0002] The double-bend boom drilling rig is a heavy-duty engineering machine widely used in tunnel excavation, mining and underground engineering support. Its main function is to drive the drilling device through a hydraulic system to perform efficient and precise drilling operations on rock. The double-bend boom structure design enables the rig to achieve flexible positioning with multiple degrees of freedom in complex construction environments, expand the working range, and adapt to drilling requirements at different angles.

[0003] In traditional rock drilling rigs, the manipulator arm, as the core actuator, directly determines the drilling accuracy and efficiency through its structural rigidity and motion stability. Existing manipulator arms often employ single-stage or simple multi-stage hydraulic cylinder propulsion methods, which, while meeting basic drilling requirements, frequently present the following problems when facing hard rock formations or conditions requiring high-precision positioning: Insufficient stability: During drilling, the reaction force of the rock mass can easily cause the boom to vibrate or deviate, affecting the straightness of the borehole and the quality of the hole; Limited adaptability: The existing boom structure has poor adhesion to the tunnel wall and is difficult to provide effective support on uneven rock surfaces, making initial positioning of the borehole difficult; This requires a device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an operating arm for a double-bend rock drilling rig, which solves the problem of insufficient stability of existing rock drilling rigs during the drilling process.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an operating arm of a double-bend rock drilling rig, comprising a support base and a bearing base, wherein a connecting seat is provided on one side of the bearing base, and the connecting seat is connected to the operating end of the rock drilling rig so that the rock drilling rig drives the bearing base to move; a first driving mechanism is provided inside the bearing base, and the bearing base is connected to the support base through the first driving mechanism; the position of the support base on the upper surface of the bearing base in the extending direction of the bearing base is adjustable. The upper surface of the support base is provided with a drive motor, and the output end of the drive motor is detachably connected to a drill rod. The support base is provided with a second drive mechanism. The drive motor is mounted on the surface of the second drive mechanism so that the second drive mechanism drives the drive motor to move along the extension direction of the support base, so that the drill rod is close to the rock wall or drills into the rock wall. The end of the support base away from the drive motor is provided with a clamping mechanism for supporting the rock wall.

[0006] Optionally, the first driving mechanism includes a first hydraulic rod and a push plate. The bearing seat has an internal receiving chamber. The first hydraulic rod is located on the inner wall of the receiving chamber. The push plate is fixedly connected to the lower surface of the support seat and guided inside the receiving chamber. The output end of the first hydraulic rod is fixedly connected to one side of the push plate to push the support seat to move relative to the bearing seat.

[0007] Optionally, a plurality of guide blocks are fixedly connected to the outer surface of the support base, and the inner wall of the guide blocks is in contact with the outer surface of the support base.

[0008] Optionally, the second drive mechanism includes a hydraulic motor, a threaded rod, and a slider. A guide groove is provided on the upper surface of the support base. The hydraulic motor is located inside the support base. The threaded rod is fixedly connected to the output end of the hydraulic motor through a keyway. The slider is threadedly connected to the outer surface of the threaded rod and is guided and slidably connected to the guide groove. The drive motor is detachably connected to the upper surface of the slider.

[0009] Optionally, the clamping mechanism includes a support rod, a connecting rod, and a clamping block. The support base has a horizontal through groove at one end near the clamping mechanism. The inner wall of the through groove is provided with an adjustment mechanism. The support rod is rotatably connected to one side of the adjustment mechanism via a rotating shaft, so that the adjustment mechanism can adjust the position of the end of the support rod. The clamping block is rotatably connected to one end of the support rod. The two ends of the connecting rod are respectively hinged to the support rod and the support base.

[0010] Optionally, the adjusting mechanism includes a second hydraulic rod and a movable block. The second hydraulic rod is located inside the support base. The movable block is fixedly connected to the output end of the second hydraulic rod and is slidably connected to the through groove guide. One end of the connecting rod is hinged to the side wall of the movable block.

[0011] Optionally, the number of clamping mechanisms is two, with the two clamping mechanisms respectively located on both sides of the support base, to improve stability during the drilling process.

[0012] Optionally, a support plate is fixedly connected to the upper surface of the support base, and the drill rod passes through the support plate and is rotatably connected to the support plate.

[0013] This utility model provides an operating arm for a double-arc boom rock drilling rig, which has the following beneficial effects: This utility model provides an operating arm for a double-bend rock drilling rig. Through the coordinated arrangement of a support base, a bearing base, and a connecting base, the connecting base can be connected to the rock drilling rig. The device is used by the curved arm of the rock drilling rig. Using a second drive mechanism on the support base and a first drive mechanism within the bearing base, when drilling in a tunnel, the first drive mechanism within the bearing base moves the support base to one end. After the drill rod is aligned, the second drive mechanism and drive motor rotate the drill rod, simultaneously inserting it into the rock for drilling. A clamping mechanism at one end of the support base can be pre-adjusted as the support base moves to one end, ensuring that one end of the support base rests against the rock surface during drilling, reducing swaying and improving drilling accuracy and stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side sectional view of the structure of this utility model; Figure 3 This is a schematic diagram of the first state of the clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the second state of the clamping mechanism of this utility model.

[0015] In the diagram: 1. Support base; 2. Bearing base; 3. Connecting base; 4. Drive motor; 5. Drill rod; 6. First hydraulic rod; 7. Push plate; 8. Receiving chamber; 9. Guide block; 10. Hydraulic motor; 11. Threaded rod; 12. Slider; 13. Guide groove; 14. Support rod; 15. Connecting rod; 16. Clamping block; 17. Through groove; 18. Second hydraulic rod; 19. Movable block; 20. Support plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1 to 4 This utility model provides a technical solution: an operating arm of a double-bend rock drilling rig, including a support base 1 and a bearing base 2. A connecting seat 3 is provided on one side of the bearing base 2. The connecting seat 3 is connected to the operating end of the rock drilling rig so that the rock drilling rig drives the bearing base 2 to move. A first driving mechanism is provided inside the bearing base 2. The bearing base 2 is connected to the support base 1 through the first driving mechanism. The position of the support base 1 on the upper surface of the bearing base 2 in the extension direction of the bearing base 2 is adjustable. The upper surface of the support base 1 is provided with a drive motor 4. The output end of the drive motor 4 is detachably connected to a drill rod 5. The support base 1 is provided with a second drive mechanism. The drive motor 4 is mounted on the surface of the second drive mechanism so that the second drive mechanism drives the drive motor 4 to move along the extension direction of the support base 1 so that the drill rod 5 is close to the rock wall or drills the rock wall. The end of the support base 1 away from the drive motor 4 is provided with a clamping mechanism for supporting the rock wall.

[0018] The support base 2 is connected to the crank arm of the rock drilling rig via the connecting base 3. The crank arm drives the device to move and simultaneously provides power and oil supply. The first drive mechanism drives the support base 1 to move relative to the connecting base 3. When drilling, the support base 1 can be moved to the approximate position by the crank arm and then moved slightly by the first drive mechanism for more accurate movement. The second drive mechanism drives the drive motor 4 to move, and the drive motor 4 rotates the drill rod 5 at the output end. The rotation of the drill rod 5 drills holes in the rock. When the drive motor 4 rotates, the second drive mechanism moves the drive motor 4 toward the rock, so that the drill rod 5 extends into the rock for drilling. After drilling is completed, the second drive mechanism drives the drive motor 4 to reset, so that the drill rod 5 is pulled out. The clamping mechanism is located at one end of the support base 1. During drilling, it can be pressed against the rock wall to improve stability during the drilling process and reduce the shaking of the support base 1.

[0019] In this embodiment, as a preferred solution, the first driving mechanism includes a first hydraulic rod 6 and a push plate 7. The bearing seat 2 has a receiving chamber 8 inside. The first hydraulic rod 6 is located on the inner wall of the receiving chamber 8. The push plate 7 is fixedly connected to the lower surface of the support seat 1 and is guided inside the receiving chamber 8. The output end of the first hydraulic rod 6 is fixedly connected to one side of the push plate 7 to push the support seat 1 to move relative to the bearing seat 2. A plurality of guide blocks 9 are fixedly connected to the outer surface of the support seat 1. The inner wall of the guide block 9 is in contact with the outer surface of the bearing seat 2. The second driving mechanism includes a hydraulic motor 10, a threaded rod 11, and a slider 12. The upper surface of the support seat 1 has a guide groove 13. The hydraulic motor 10 is located inside the support seat 1. The threaded rod 11 is fixedly connected to the output end of the hydraulic motor 10 through a keyway. The slider 12 is threadedly connected to the outer surface of the threaded rod 11, and the slider 12 is guided and slidably connected to the guide groove 13. The drive motor 4 is detachably connected to the upper surface of the slider 12.

[0020] During the telescopic movement of the first hydraulic rod 6, it pushes the push plate 7 to move. The push plate 7 is connected to the support seat 1, thereby moving the support seat 1 to one end. During the movement of the support seat 1, the guide block 9 fixed on the outside of the support seat 1 will slide and connect with the bearing seat 2 to guide the movement direction of the support seat 1, improve the stability of the support seat 1 during movement, and reduce the possibility of the support seat 1 sliding. The hydraulic motor 10 is connected to the external oil circuit. The hydraulic motor 10 is driven to rotate through the external oil circuit. When the hydraulic motor 10 rotates, it drives the threaded rod 11 at the output end to rotate. The slider 12 is threadedly connected to the threaded rod 11. Through the rotation of the threaded rod 11, the slider 12 can move laterally on the inner wall of the guide groove 13 to adjust the position of the drive motor 4. The electrical connection method and oil circuit connection method of the drive motor 4 and the hydraulic motor 10 are all existing technologies and are well known to those skilled in the art. They will not be described in detail here. At the same time, the drive motor 4 in this application can also be replaced with the hydraulic motor 10 to be driven by hydraulic oil. Changing the type of drive equipment is a well-known technology known to those skilled in the art.

[0021] In this embodiment, as a preferred solution, the clamping mechanism includes a support rod 14, a connecting rod 15, and a clamping block 16. A horizontal through groove 17 is provided at one end of the support base 1 near the clamping mechanism. An adjustment mechanism is provided on the inner wall of the through groove 17. The support rod 14 is rotatably connected to one side of the adjustment mechanism via a rotating shaft, so that the adjustment mechanism can adjust the position of the end of the support rod 14. The clamping block 16 is rotatably connected to one end of the support rod 14. The two ends of the connecting rod 15 are respectively hinged to the support rod 14 and the support base 1. The adjustment mechanism includes a second hydraulic rod 18 and a movable block 19. The second hydraulic rod 18 is located inside the support base 1. The movable block 19 is fixedly connected to the output end of the second hydraulic rod 18, and the movable block 19 is guided and slidably connected to the through groove 17. One end of the connecting rod 15 is hinged to the side wall of the movable block 19.

[0022] The second hydraulic rod 18 can push the movable block 19 at the output end to move. When the movable block 19 moves, it will adjust the position of the support rod 14. Through the cooperation of the support rod 14 and the connecting rod 15, the position of the clamping block 16 at one end of the support rod 14 can be adjusted when the movable block 19 moves. The clamping position of the clamping block 16 can be adjusted according to the current position of the drilling rock surface. The through groove 17 limits the movement direction of the movable block 19 to ensure the stability of the movement direction of the movable block 19. During the retraction of the second hydraulic rod 18, the movable block 19 will move in the direction of the second hydraulic rod 18, causing the support rod 14 to retract, thereby reducing the distance between the clamping blocks 16 at one end, which is convenient for support in narrower positions. During the extension of the second hydraulic rod 18, the movable block 19 will move to the other end, causing the support rod 14 to open, thereby increasing the distance between the clamping blocks 16, providing support over a wider range. It can be adjusted according to the current rock surface conditions to improve stability.

[0023] In this embodiment, as a preferred option, there are two clamping mechanisms, which are respectively located on both sides of the support base 1 to improve stability during the drilling process.

[0024] Two clamping mechanisms are respectively located on both sides of the support base 1 to further improve the stability of the support process and reduce shaking during the drilling process.

[0025] In this embodiment, as a preferred option, a support plate 20 is fixedly connected to the upper surface of the support base 1, and the drill rod 5 passes through the support plate 20 and is rotatably connected to the support plate 20.

[0026] The drill rod 5 has a drill bit at only the end for drilling into the rock. The middle and tail sections are smooth cylinders. The drill rod 5 passes through the support plate 20, and the support plate 20 has a bearing inside, allowing the drill rod 5 to rotate and move back and forth within the support plate 20. The support plate 20 supports the position of the drill rod 5, reducing deformation caused by the long length of the drill rod 5 and further improving the accuracy of drilling.

[0027] In this invention, the working steps of the device are as follows: 1. After the device is installed, adjust the position of the crank arm to align the device with the position where the hole needs to be drilled. Adjust the position of the second hydraulic rod 18 according to the current position of the rock surface so that the clamping block 16 can fit against the rock surface. After adjusting the position of the second hydraulic rod 18, the first hydraulic rod 6 moves the support seat 1 to one side of the rock surface so that the clamping block 16 is pressed against the rock surface. 2. Start the drive motor 4, which drives the drill rod 5 to rotate. Then start the hydraulic motor 10, which drives the threaded rod 11 to rotate and pushes the drive motor 4 to one side, so that the drill rod 5 can perform drilling operation. After drilling is completed, the hydraulic motor 10 reverses and pulls out the drill rod 5. 3. Then, the first hydraulic rod 6 is reset to retract the support base 1, and after adjusting the position of the crank arm, holes are drilled for the subsequent holes.

[0028] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. The operating arm of a double-bend rock drilling rig, characterized in that: It includes a support base (1) and a bearing base (2). A connecting seat (3) is provided on one side of the bearing base (2). The connecting seat (3) is connected to the operating end of the rock drilling rig so that the rock drilling rig drives the bearing base (2) to move. A first driving mechanism is provided inside the bearing base (2). The bearing base (2) is connected to the support base (1) through the first driving mechanism. The position of the support base (1) on the upper surface of the bearing base (2) in the extension direction of the bearing base (2) is adjustable. The upper surface of the support base (1) is provided with a drive motor (4), and the output end of the drive motor (4) is detachably connected to a drill rod (5). The support base (1) is provided with a second drive mechanism. The drive motor (4) is installed on the surface of the second drive mechanism so that the second drive mechanism drives the drive motor (4) to move along the extension direction of the support base (1) so that the drill rod (5) is close to the rock wall or drills the rock wall. The end of the support base (1) away from the drive motor (4) is provided with a clamping mechanism for supporting on the rock wall.

2. The operating arm of a double-bend rock drilling rig according to claim 1, characterized in that: The first driving mechanism includes a first hydraulic rod (6) and a push plate (7). The bearing seat (2) has an internal cavity (8). The first hydraulic rod (6) is located on the inner wall of the cavity (8). The push plate (7) is fixedly connected to the lower surface of the support seat (1) and is guided inside the cavity (8). The output end of the first hydraulic rod (6) is fixedly connected to one side of the push plate (7) to push the support seat (1) to move relative to the bearing seat (2).

3. The operating arm of a double-bend rock drilling rig according to claim 2, characterized in that: Multiple guide blocks (9) are fixedly connected to the outer surface of the support base (1), and the inner wall of the guide block (9) is in contact with the outer surface of the bearing base (2).

4. The operating arm of a double-bend rock drilling rig according to claim 3, characterized in that: The second drive mechanism includes a hydraulic motor (10), a threaded rod (11), and a slider (12). A guide groove (13) is provided on the upper surface of the support base (1). The hydraulic motor (10) is located inside the support base (1). The threaded rod (11) is fixedly connected to the output end of the hydraulic motor (10) through a keyway. The slider (12) is threadedly connected to the outer surface of the threaded rod (11), and the slider (12) is guided and slidably connected to the guide groove (13). The drive motor (4) is detachably connected to the upper surface of the slider (12).

5. The operating arm of a double-bend rock drilling rig according to any one of claims 1-4, characterized in that: The clamping mechanism includes a support rod (14), a connecting rod (15), and a clamping block (16). The support base (1) has a horizontal through groove (17) at one end near the clamping mechanism. The inner wall of the through groove (17) is provided with an adjustment mechanism. The support rod (14) is rotatably connected to one side of the adjustment mechanism via a rotating shaft so that the adjustment mechanism can adjust the position of the end of the support rod (14). The clamping block (16) is rotatably connected to one end of the support rod (14). The two ends of the connecting rod (15) are respectively hinged to the support rod (14) and the support base (1).

6. The operating arm of a double-bend rock drilling rig according to claim 5, characterized in that: The adjustment mechanism includes a second hydraulic rod (18) and a movable block (19). The second hydraulic rod (18) is located inside the support base (1). The movable block (19) is fixedly connected to the output end of the second hydraulic rod (18) and is guided and slidably connected to the through groove (17). One end of the connecting rod (15) is hinged to the side wall of the movable block (19).

7. The operating arm of a double-bend rock drilling rig according to claim 6, characterized in that: The number of clamping mechanisms is two, and the two clamping mechanisms are respectively located on both sides of the support base (1) to improve the stability during the drilling process.

8. The operating arm of a double-bend rock drilling rig according to any one of claims 1-4, characterized in that: The upper surface of the support base (1) is fixedly connected to the support plate (20), and the drill rod (5) passes through the support plate (20) and is rotatably connected to the support plate (20).

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