Multifunctional working arm for rock drilling vehicle
By designing an adjustment component for a multi-functional working arm and utilizing the cooperation of hydraulic cylinders and rotating shafts, the lateral translation of the rock drill's propulsion arm was achieved, solving the problem of inconvenient drilling position adjustment in existing technologies and improving drilling stability and accuracy.
Patent Information
- Application Number
- CN202520806832.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-27
AI Technical Summary
The existing rock drilling vehicle's working mechanism cannot make fine adjustments left and right at the drilling position, causing the drilling to tilt. It is necessary to adjust the drilling position by controlling the movement of the vehicle.
A multi-functional working arm was designed, including an adjustment component. The movement of the long shaft is controlled by a hydraulic cylinder. The lateral translation of the propulsion arm is achieved through the cooperation of the connecting plate and the rotating shaft. Combined with the design of the movable frame, stability and precise adjustment of the drilling position are ensured.
It enables precise fine-tuning of the drilling position, avoids drilling tilt, and improves the stability and accuracy of drilling.
Smart Images

Figure CN223839056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rock drilling vehicle technology, specifically a multi-functional working arm for a rock drilling vehicle. Background Technology
[0002] A rock drilling rig is a type of rock drilling equipment used in tunnel and underground engineering projects using the drill-and-blast method. Its working mechanism mainly consists of a propeller, drill arm, slewing mechanism, and translation mechanism. Rock drilling rigs can be classified into horizontal tunnel drilling rigs, mining drilling rigs, bolt drilling rigs, and open-pit drilling rigs, etc.
[0003] Rock drilling rigs, also known as drilling machines, perform drilling operations using a working mechanism. In existing rock drilling rigs, the working mechanism allows for vertical adjustment of the drilling position via the drill arm and the push arm. However, when fine-tuning the drilling position horizontally is required, the drill arm cannot control the pusher for lateral movement. Controlling the pusher's rotation to adjust the drilling position causes the borehole to tilt. Therefore, vehicle movement is necessary to adjust the drilling position. For example, a drilling rig working arm proposed in publication number "CN218117697U" includes a drill arm with a fixed support at its bottom. The fixed support contains telescopic tubes, the bottom of which are movably fitted within the fixed support. The drill arm also contains telescopic tubes, the top of which are movably fitted within the drill arm. A fixed clamp is located at the middle of the bottom of the drill arm, and the drill arm is fixedly connected to the clamp. Each clamp contains a hydraulic cylinder telescopic tube, which is movably connected to the hydraulic cylinder telescopic tube via connecting bolts. The drill arm is movably fitted inside a supporting hydraulic steel frame. One end of each supporting hydraulic steel frame has a fixing clamp, which is movably connected to the supporting hydraulic steel frame via connecting bolts. An angle hydraulic cylinder is located on the side of the supporting hydraulic steel frame away from the hydraulic cylinder telescopic tube. One end of the angle hydraulic cylinder has a fixing clamp, which is movably connected to the angle hydraulic cylinder via connecting bolts. One end of the drill arm has a corner connector with a connecting piece. The top of the drill arm has a length hydraulic cylinder, and the other side of the drill arm has a worktable connector. A protective bracket is fitted inside the worktable connector, and a rotary hydraulic cylinder is located inside the protective bracket. One end of the rotary hydraulic cylinder has a swing cylinder, and the top of the swing cylinder has a compensation cylinder. The top of the compensation cylinder has a pusher, and the top of the pusher has a slider. The top of the slider has a rock drill, and one side of the rock drill has a chisel. The above patent, when adjusting the position of the drill arm, can only control the up-and-down movement of the pusher arm, but cannot control the lateral translation of the pusher arm. Therefore, a multi-functional working arm for a rock drilling vehicle is proposed. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-functional working arm for rock drilling vehicles.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-functional working arm for a rock drilling vehicle, including a propulsion arm, a drilling device being provided at the top of the propulsion arm, and further comprising:
[0006] An adjustment component, mounted on the push arm, is used to adjust the lateral translation of the push arm;
[0007] The adjustment assembly includes a movable frame that is slidably connected to the bottom of the push arm. A connecting frame is fixed to the bottom of the push arm. The bottom of the movable frame is slidably connected to the connecting frame via a slide rail. Two sets of first rotating shafts are fixed to the bottom of the movable frame. A movable component is rotatably connected to the outer surface of each set of first rotating shafts. A second rotating shaft is rotatably connected to one end of the movable component. A hydraulic cylinder is fixed to one side of the connecting frame. A long shaft is fixed to the end of the hydraulic cylinder. Two sets of connecting plates are fixed to the outer surface of the long shaft.
[0008] As mentioned above, the bottom of the connecting frame is connected to the drill arm of the rock drill.
[0009] As mentioned above, the second rotating shaft is embedded in the inner wall of the connecting plate and is rotatably connected to the connecting plate.
[0010] As mentioned above, both ends of the movable frame are provided with protrusions. When the movable frame moves, the protrusions of the movable frame are blocked by the connecting frame.
[0011] As mentioned above, the initial state of the movable component is °, and in the initial state of the movable component, the two sets of movable frames are symmetrical about the axis of the propulsion arm.
[0012] As described above, the connecting plate makes contact with the end of the movable part by pressing it through the second rotating shaft.
[0013] Compared with existing technologies, this multi-functional working arm for rock drilling vehicles has the following advantages:
[0014] I. This utility model controls the movement of a long shaft through a hydraulic cylinder, thereby driving the connecting plate to move. The movement of the connecting plate will apply a pulling or pushing force to the second rotating shaft, which will then push the movable part to move. Through the cooperation between the movable part and the first rotating shaft, the first rotating shaft will drive the movable frame to slide along the inner side of the connecting frame. In turn, the movable frame can drive the propulsion arm to move left and right, which facilitates the control of the drilling position of the drilling equipment.
[0015] Second, this utility model allows the movable frame to slide along the top of the connecting frame through the cooperation between the movable frame and the connecting frame. This allows the drilling equipment to be moved by the movable frame. At this time, the protrusions at both ends of the movable frame will be blocked by the connecting frame when the movable frame moves, thereby preventing the movable frame and the connecting frame from separating and ensuring its stability.
[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial cross-sectional view of the side of the present invention.
[0019] Figure 3 This is a cross-sectional view of the bottom of the present invention;
[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;
[0021] Figure 5 This is a cross-sectional view of the front of this utility model.
[0022] In the diagram: 1. Push arm; 2. Drilling equipment; 3. Movable frame; 4. Connecting frame; 5. First rotating shaft; 6. Movable component; 7. Second rotating shaft; 8. Hydraulic cylinder; 9. Long shaft; 10. Connecting plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] like Figure 1-5 As shown, this utility model provides a multi-functional working arm for a rock drilling vehicle, including a propulsion arm 1, a drilling device 2 mounted on the top of the propulsion arm 1, and further comprising:
[0025] An adjustment component, which is mounted on the push arm 1, is used to adjust the lateral translation of the push arm 1;
[0026] The adjustment assembly includes a movable frame 3, which is slidably connected to the bottom of the push arm 1. A connecting frame 4 is fixed to the bottom of the push arm 1. The bottom of the movable frame 3 is slidably connected to the connecting frame 4 with a slide rail. Two sets of first rotating shafts 5 are fixed to the bottom of the movable frame 3. A movable part 6 is rotatably connected to the outer surface of each set of first rotating shafts 5. A second rotating shaft 7 is rotatably connected to one end of the movable part 6. A hydraulic cylinder 8 is fixed to one side of the connecting frame 4. A long shaft 9 is fixed to the end of the hydraulic cylinder 8. Two sets of connecting plates 10 are fixed to the outer surface of the long shaft 9.
[0027] The operation of hydraulic cylinder 8 controls the movement of long shaft 9, which in turn drives connecting plate 10 to move. The movement of connecting plate 10 applies a pulling or pushing force to second rotating shaft 7, which in turn pushes movable part 6 to move. Through the cooperation between movable part 6 and first rotating shaft 5, movable frame 3 slides along the inner side of connecting frame 4 via first rotating shaft 5. Movable frame 3 then drives propulsion arm 1 to move left and right, which facilitates control of the drilling position of drilling equipment 2.
[0028] like Figure 1 , 2 As shown in Figures 4 and 5, the second rotating shaft 7 is embedded in the inner wall of the connecting plate 10 and is rotatably connected to the connecting plate 10. The bottom of the connecting frame 4 is connected to the drill arm of the rock drill.
[0029] Through the cooperation between the second rotating shaft 7 and the connecting plate 10, when the connecting plate 10 moves, it can drive the second rotating shaft 7 to move synchronously. At this time, due to the cooperation between the connecting frame 4 and the movable frame 3, when the second rotating shaft 7 drives the movable part 6 to move, it will drive the propulsion arm 1 to move horizontally through the first rotating shaft 5.
[0030] like Figure 1 As shown, both ends of the movable frame 3 are provided with protrusions. When the movable frame 3 moves, the protrusions of the movable frame 3 are blocked by the connecting frame 4.
[0031] The protrusions at both ends of the movable frame 3 prevent the movable frame 3 from separating from the connecting frame 4 when the movable frame 3 drives the propulsion arm 1 to move, thus improving its stability.
[0032] like Figure 4 , 5 As shown, the initial state of the movable part 6 is 45°. In the initial state of the movable part 6, the two sets of movable frames 3 are symmetrical about the axis of the push arm 1.
[0033] Through the design of the movable part 6, when the second rotating shaft 7 applies a pulling or pushing force to the movable part 6, it is possible to control the movable frame 3 to move left and right, which makes it easy to control the translation direction and distance.
[0034] like Figure 4As shown, the connecting plate 10 presses against the end of the movable part 6 through the second rotating shaft 7.
[0035] Through the cooperation between the connecting plate 10 and the second rotating shaft 7, when the connecting plate 10 moves, the moving part 6 can be driven to move through the second rotating shaft 7, thereby driving the first rotating shaft 5 to move through the moving part 6, which facilitates the translation of the movable frame 3 and makes it convenient to fine-tune the drilling position.
[0036] Working principle:
[0037] When it is necessary to make slight adjustments to the drilling position of the drilling equipment 2, the hydraulic cylinder 8 is controlled to move the long shaft 9 forward and backward. This allows the connecting plate 10 to move. The movement of the connecting plate 10 will apply a pulling or pushing force to the second rotating shaft 7, which will then push the movable part 6 to move. Through the cooperation between the movable part 6 and the first rotating shaft 5, the movable frame 3 will slide along the inner side of the connecting frame 4 via the first rotating shaft 5. This allows the movable frame 3 to move the push arm 1 left and right, making it easier to control the drilling position of the drilling equipment 2.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-functional working arm for a rock drilling vehicle, comprising a propulsion arm (1), wherein a drilling device (2) is provided on the top of the propulsion arm (1), characterized in that, Also includes: An adjustment component is provided on the push arm (1) for adjusting the push arm (1) to perform lateral translation; The adjustment assembly includes a movable frame (3), which is slidably connected to the bottom of the push arm (1). A connecting frame (4) is fixed to the bottom of the push arm (1). The bottom of the movable frame (3) is slidably connected to the connecting frame (4) with a sliding rail. Two sets of first rotating shafts (5) are fixed to the bottom of the movable frame (3). A movable part (6) is rotatably connected to the outer surface of each set of first rotating shafts (5). A second rotating shaft (7) is rotatably connected to one end of the movable part (6). A hydraulic cylinder (8) is fixed to one side of the connecting frame (4). A long shaft (9) is fixed to the end of the hydraulic cylinder (8). Two sets of connecting plates (10) are fixed to the outer surface of the long shaft (9).
2. The multi-functional working arm for a rock drilling vehicle according to claim 1, characterized in that: The bottom of the connecting frame (4) is connected to the drill arm of the rock drill.
3. The multi-functional working arm for a rock drilling vehicle according to claim 1, characterized in that: The second rotating shaft (7) is embedded in the inner wall of the connecting plate (10) and is rotatably connected to the connecting plate (10).
4. The multi-functional working arm for a rock drilling vehicle according to claim 1, characterized in that: Both ends of the movable frame (3) are provided with protrusions. When the movable frame (3) moves, the protrusions of the movable frame (3) are blocked by the connecting frame (4).
5. A multi-functional working arm for a rock drilling vehicle according to claim 1, characterized in that: The initial state of the movable part (6) is 45°. In the initial state of the movable part (6), the two sets of movable frames (3) are symmetrical about the axis of the push arm (1).
6. A multi-functional working arm for a rock drilling vehicle according to claim 1, characterized in that: The connecting plate (10) makes contact with the end of the movable part (6) by means of the second rotating shaft (7).