Impact coring drill stand with positioning function
By using a combined structure of expansion screws and squid lock nuts in the impact core drilling frame, the problem of core instability in the prior art is solved, and higher stability and integrity are achieved.
Patent Information
- Application Number
- CN202421681970.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing impact core drilling rigs are unstable during core removal and are prone to shaking, which affects the integrity of core removal.
A positioned impact core drilling tray is designed to fix the drilling rod in the rock through the principle of expansion screws of the drilling rod, and a combined structure of the sleeve and locking nut provide central support to ensure the stability of the core drilling hole.
Improve the stability of the drill frame, ensure better core molding effect, avoid core damage, and thus improve the inspection results after core removal.
Smart Images
Figure CN222909974U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of core drilling rigs, and particularly relates to an impact core drilling rig with positioning. Background Art
[0002] In many projects, in order to inspect whether the project is qualified, it is necessary to take core samples from the project structure for spot checks. In addition, in some projects, it is necessary to take core samples of the soil in the tunnel to understand the soil of this project area, which is beneficial to subsequent construction. However, the impact core drilling rig currently in use is extremely unstable during core sampling and is prone to shaking. Therefore, instability will damage the integrity of core sampling, which will directly affect the inspection results after core sampling. For this reason, we propose an impact core drilling rig with positioning. Content of the Utility Model
[0003] The main purpose of the utility model is to provide an impact core drilling rig with positioning, which can effectively solve the problems in the background art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] An impact core drilling rig with positioning includes a drilling frame body. One end of the upper surface of the drilling frame body is fixedly installed with a guiding frame. Guide rails are fixedly installed on both sides of the surface of the guiding frame. A propulsion oil cylinder is fixedly installed at the position below the guide rails on the drilling frame body. Sliding shoes are slidably installed on the surfaces of the guide rails. The other end inside of the drilling frame body is movably connected with a drilling oil cylinder. The other end of the drilling oil cylinder is movably connected with a bearing box. A drill pipe is fixedly installed through the bearing box. One end of the drill pipe is connected to the output end of an impact motor. The other end of the drill pipe passes through a gear box and is connected with a joint rod. The other end of the joint rod is connected with an impactor. The other end of the impactor is connected with a down-the-hole bit. The sleeve is sleeved on the outer surfaces of the drill pipe, the joint rod and the impactor. A rotary motor is fixedly installed at the input end of the gear box. The output end of the gear box is fixedly connected with a drill barrel. The drilling end of the drill barrel passes through the guiding frame.
[0006] Furthermore, a guiding ring is sleeved inside the sleeve on the surface of the drill pipe. A locking nut is spirally sleeved at the connection between the drill pipe and the bearing box and at the end of the sleeve. Four equally spaced notches are axially opened at the other end of the sleeve.
[0007] Furthermore, both the gear box and the bearing box are slidably installed on the guide rails on both sides through the sliding shoes.
[0008] Furthermore, one output end of the propulsion oil cylinder is fixed on the drilling frame body, and the other output end is fixedly installed with the sliding shoe on the gear box through a connecting piece.
[0009] Further, both ends of the drilling oil cylinder are movably installed on the bearing box and the drilling frame body through rotating shafts respectively.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] In the utility model, the whole structure of the drill pipe of the impact coring drill rig fixes the drill pipe in the rock by using the principle of expansion bolts, and then cores and drills, improving the stability of the drill rig, making the coring forming effect better, and avoiding damage to the obtained core. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the overall structure of an impact coring drill rig with positioning of the present utility model;
[0013] Figure 2 is a top view of an impact coring drill rig with positioning of the present utility model;
[0014] Figure 3 is an installation display diagram of the sheath of an impact coring drill rig with positioning of the present utility model;
[0015] Figure 4 is a connection display diagram of the drill pipe and the impactor of an impact coring drill rig with positioning of the present utility model;
[0016] Figure 5 is a partial sectional view of an impact coring drill rig with positioning of the present utility model;
[0017] Figure 6 is a partial enlarged display diagram of the sheath of an impact coring drill rig with positioning of the present utility model.
[0018] In the figure: 1. Guide frame; 2. Drilling frame body; 3. Guide rail; 4. Drill barrel; 5. Tooth box; 6. Drill pipe; 7. Bearing box; 8. Impact motor; 9. Propulsion oil cylinder; 10. Sheath; 11. Guide ring; 12. Rotary motor; 13. Drilling oil cylinder; 14. DTH bit; 15. Impactor; 16. Connecting rod; 17. Locking nut; 18. Notch; 19. Sliding shoe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] Such as Figures 1-6As shown in the figure, an impact coring drill rig with positioning includes a drilling rig body 2. At one end of the upper surface of the drilling rig body 2, a guiding frame 1 is fixedly installed. On both sides of the surface of the guiding frame 1, guide rails 3 are fixedly installed. Below the guide rails 3 on the drilling rig body 2, a propulsion oil cylinder 9 is fixedly installed. On the surfaces of the guide rails 3, sliding shoes 19 are slidably installed. At the inner side of the other end of the drilling rig body 2, a drilling oil cylinder 13 is movably connected. When the drilling oil cylinder 13 is working, it can drive the drill pipe 6 and the bearing box 7 to drill forward. The other end of the drilling oil cylinder 13 is movably connected to the bearing box 7. The drill pipe 6 is fixedly installed through the bearing box 7 in an inserted manner. One end of the drill pipe 6 is connected to the output end of the impact motor 8. The impact motor 8 is installed on the end cover of the bearing box 7 to provide power to the drill pipe 6, thereby driving the drill pipe 6 to rotate. The other end of the drill pipe 6 passes through the tooth box 5 and is connected to the joint rod 16. The other end of the joint rod 16 is connected to the impactor 15. The other end of the impactor 15 is connected to the down-the-hole bit 14. A sleeve 10 is sleeved on the outer surfaces of the drill pipe 6, the joint rod 16, and the impactor 15. At the input end of the tooth box 5, a rotary motor 12 is fixedly installed. At the output end of the tooth box 5, a drill barrel 4 is fixedly connected. The drilling end of the drill barrel 4 passes through the guiding frame 1;
[0021] A guiding ring 11 is sleeved inside the sleeve 10 on the surface of the drill pipe 6. At the connection between the drill pipe 6 and the bearing box 7 and at the end of the sleeve 10, a locking nut 17 is spirally sleeved and installed. By tightening the locking nut 17, the sleeve 10 is pushed forward into the rock. At four equal parts positions at the other end of the sleeve 10, notches 18 are axially opened. The setting of the notches 18 is to facilitate the sleeve 10 to squeeze into the rock; both the tooth box 5 and the bearing box 7 are slidably installed on the guide rails 3 on both sides through the sliding shoes 19; one output end of the propulsion oil cylinder 9 is fixed on the drilling rig body 2, and the other output end is fixedly installed on the sliding shoe 19 on the tooth box 5 through a connecting piece; both ends of the drilling oil cylinder 13 are movably installed on the bearing box 7 and the drilling rig body 2 respectively through rotating shafts.
[0022] It should be noted that the present utility model is an impact coring drill rig with positioning. When in use, the drilling rig body 2 is brought close to the rock surface through an actuator on the tunnel drilling rig, and then the impact motor 8 is started. The drill pipe 6 is pushed into the rock through the drilling oil cylinder 13. At this time, high-pressure gas is introduced above the bearing box 7, and the down-the-hole bit 14 impacts. When the drill pipe 6 drills into the rock for a certain distance, the locking nut 17 is tightened to squeeze the sleeve 10 into the rock to provide a central support for the coring hole. At this time, the impact motor 8 stops working, and then the rotary motor 12 is started to provide power to the drill barrel 4 through the tooth box 5. The drill barrel 4 is pushed into the rock through the propulsion oil cylinder 9 to complete coring. After coring is completed, the drill barrel 4 is retracted, and then the drill pipe 6 is retracted to complete the coring task.
[0023] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A percussion coring drill stand with positioning, characterized in that: The invention comprises a drilling frame (2), wherein a guide frame (1) is fixedly mounted at one end of the upper surface of the drilling frame (2), guide rails (3) are fixedly mounted on the surface of the guide frame (1) near both sides, a propulsion cylinder (9) is fixedly mounted on the drilling frame (2) below the guide rails (3), and a sliding shoe (19) is slidably mounted on the surface of the guide rails (3), a drilling cylinder (13) is movably connected to the inner side of the other end of the drilling frame (2), and a bearing box (7) is movably connected to the other end of the drilling cylinder (13), and a drill rod (6) is inserted and fixedly mounted in the bearing box (7). One end of the drill rod (6) is connected to the output end of the impact motor (8), the other end of the drill rod (6) passes through the tooth box (5) and is connected to the connecting rod (16), the other end of the connecting rod (16) is connected to the impactor (15), the other end of the impactor (15) is connected to the down-the-hole drill bit (14), the sheath (10) is sleeved on the outer surfaces of the drill rod (6), the connecting rod (16) and the impactor (15), the input end of the tooth box (5) is fixedly mounted with a rotary motor (12), the output end of the tooth box (5) is fixedly connected with a drill barrel (4), and the drilling end of the drill barrel (4) passes through the guide frame (1).
2. The impact coring drill stand with positioning according to claim 1, characterized in that: A guide ring (11) is sleeved and installed on the surface of the drill rod (6) inside the sheath (10), a locking nut (17) is spirally sleeved and installed at the connection between the drill rod (6) and the bearing box (7) and at the end of the sheath (10), and slots (18) are axially opened at four equal positions on the other end of the sheath (10).
3. The impact coring drill stand with positioning according to claim 2, characterized in that: The tooth box (5) and the bearing box (7) are both slidably mounted on the guide rails (3) on both sides via sliding shoes (19).
4. The impact coring drill stand with positioning according to claim 3, characterized in that: One output end of the propulsion oil cylinder (9) is fixed on the drilling frame (2), and the other output end is fixedly mounted on the sliding shoe (19) on the tooth box (5) via a connecting piece.
5. The impact coring drill stand with positioning according to claim 4, characterized in that: Both ends of the drilling oil cylinder (13) are movably mounted on the bearing box (7) and the drilling frame (2) via a rotating shaft.