Tunneling drill bit convenient to disassemble and replace quickly

Abstract

The utility model discloses a tunneling drill bit convenient to disassemble and replace quickly, which comprises a drill bit body, a drill rod arranged at the bottom of the drill bit body, a mounting groove arranged at the top of the drill rod, a lantern ring fixedly connected to the top of the drill rod, and a groove arranged at the bottom of the drill bit body. And the outer side of the lantern ring is slidably connected with the interior of the groove, movable grooves are formed in the mounting groove at equal intervals, fixing assemblies are arranged in the movable grooves, and two mounting blocks are fixedly connected to the outer side of the drill rod. According to the tunneling drill bit convenient to disassemble and replace quickly, the fixing assembly and the limiting assembly are arranged, the drill bit body can be quickly assembled and disassembled through the fixing assembly, the complex bolt disassembling step in a traditional mode is reduced, operation convenience is improved, and the drilling efficiency is improved. The limiting assembly can prevent the fixing assembly from accidentally falling off in the working state of the drill bit, and the risk of accidents in the operation process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunneling bits, in particular to a tunneling bit that is convenient for quick disassembly and replacement. Background Technique

[0002] A tunneling bit is a drilling tool used in underground engineering and mine exploitation, mainly for drilling holes in rock or soil. The design and structure of tunneling bits usually vary according to different geological conditions and engineering requirements. A PDC bit (polycrystalline diamond compact bit) is a type of tunneling bit. A PDC bit is made of polycrystalline diamond (PDC), has high wear resistance and long service life, and is suitable for drilling work in hard rock and high-strength formations.

[0003] The patent document with the application number CN210178278U discloses a bit for coal mine tunneling, including a connecting rod. A connecting head is provided at the lower end of the connecting rod. A drill blade and four dust cleaning pieces are provided in the middle of the lower end of the connecting head, and the dust cleaning pieces are distributed in a circular array with the drill blade as the center. A conical head is provided at the lower end of the drill blade. An insertion hole is opened in the middle of the connecting rod in the up and down direction, and two fixing holes penetrating up and down are opened at the upper end of the connecting head.

[0004] During actual use of the bit, during the tunneling process, soil, sand, etc. will enter the groove where the bit and the drill rod are fixedly connected, which will make it difficult to remove the fixing bolts, and it will be more troublesome to replace the bit, and it is not easy to replace. In view of the above problems, we have introduced a tunneling bit that is convenient for quick disassembly and replacement. Content of the Utility Model

[0005] The utility model discloses a tunneling bit that is convenient for quick disassembly and replacement. By researching and improving the existing structure and deficiencies, a tunneling bit that is convenient for quick disassembly and replacement is provided to achieve the purpose of better practical value.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A tunneling bit that is convenient for quick disassembly and replacement, including a bit body. A drill rod is provided at the bottom of the bit body. An installation groove is opened at the top of the drill rod. The inside of the installation groove is slidably connected to the bottom of the bit body. A collar is fixedly connected to the top of the drill rod. A groove is opened at the bottom of the bit body. The outside of the collar is slidably connected to the inside of the groove. Moving grooves are equidistantly opened in the inside of the installation groove. Fixing components are arranged in the moving grooves. Two installation blocks are fixedly connected to the outside of the drill rod. Limiting components are arranged inside the two installation blocks.

[0008] In a preferred embodiment, the fixing component includes a sliding rod which is slidably connected inside the movable groove. One end of the sliding rod is fixedly connected with a clamping block. The outer side of the drill bit body is equidistantly provided with clamping grooves. The top of the clamping block abuts against the top of the inner wall of the clamping groove. One end of the sliding rod extends to the outside of the drill pipe and is fixedly connected with a connecting block. A second spring is arranged on the outer side of the sliding rod.

[0009] In a preferred embodiment, the top of the clamping block is provided with an inclined surface.

[0010] In a preferred embodiment, the limiting component includes a connecting rod which is slidably connected inside the mounting block. The top of the connecting rod is fixedly connected with a round block. A third spring is arranged on the outer side of the connecting rod.

[0011] In a preferred embodiment, the top of the round block is fixedly connected with a fixing block. A notch is formed at the bottom of the connecting block. The top of the connecting block abuts against the top of the inner wall of the notch.

[0012] In a preferred embodiment, a first spring is arranged at the bottom of the inner wall of the mounting groove. The top of the first spring abuts against the bottom of the drill bit body.

[0013] The tunneling drill bit provided by the utility model which is convenient for quick disassembly and replacement has the following advantages:

[0014] First, insert the bottom of the drill bit body into the mounting groove of the drill pipe. When the bottom of the drill bit body completely enters the mounting groove, the fixing component will fix the drill bit body. Then, the limiting component is used to further limit the fixing component. When disassembling, just sequentially move the limiting component and the fixing component, and the drill bit body can be disassembled from the drill pipe. By simply moving the limiting component and the fixing component, the drill bit can be quickly disassembled and replaced. Compared with the traditional fixing bolt installation method, the use of tools and cumbersome steps are omitted. The simplified disassembly process makes the maintenance work more efficient and reduces the maintenance cost.

[0015] Second, the limitation of the limiting component on the fixing component can ensure the stability of the drill bit during operation, avoid accidental detachment of the drill bit during use, and ensure safety and use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of a tunneling drill bit provided by the utility model which is convenient for quick disassembly and replacement.

[0017] Figure 2 It is a front view sectional schematic diagram of a tunneling drill bit provided by the utility model which is convenient for quick disassembly and replacement.

[0018] Figure 3The first explosion schematic diagram of a tunneling bit that is convenient for quick disassembly and replacement proposed by the present utility model.

[0019] Figure 4 The second explosion schematic diagram of a tunneling bit that is convenient for quick disassembly and replacement proposed by the present utility model.

[0020] Figure 5 A tunneling bit that is convenient for quick disassembly and replacement proposed by the present utility model Figure 2 The enlarged schematic diagram at position A in

[0021] In the attached drawings: 1. Drill bit body; 2. Drill pipe; 3. Installation groove; 4. Groove; 5. Collar; 6. First spring; 7. Activity groove; 8. Slide bar; 9. Clamping block; 10. Second spring; 11. Connecting block; 12. Card slot; 13. Installation block; 14. Connecting rod; 15. Round block; 16. Fixed block; 17. Notch; 18. Third spring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] A tunneling bit that is convenient for quick disassembly and replacement disclosed by the present utility model is mainly applied to the scenario of tunneling bits.

[0024] Refer to Figures 1 to 5 , a tunneling bit that is convenient for quick disassembly and replacement, includes: a drill bit body 1, a drill pipe 2 is arranged at the bottom of the drill bit body 1, an installation groove 3 is opened at the top of the drill pipe 2, the inside of the installation groove 3 is slidably connected to the bottom of the drill bit body 1, a collar 5 is fixedly connected to the top of the drill pipe 2, a groove 4 is opened at the bottom of the drill bit body 1, the outside of the collar 5 is slidably connected to the inside of the groove 4, activity grooves 7 are equidistantly opened inside the installation groove 3, a fixing component is arranged inside the activity grooves 7, two installation blocks 13 are fixedly connected to the outside of the drill pipe 2, and a limiting component is arranged inside the two installation blocks 13.

[0025] In the above technical solution, considering that the traditional fixed bolt installation method is not easy to remove, it is more troublesome to replace the drill bit and not easy to perform the replacement. To solve such problems, the specific operation is as follows: Insert the bottom of the drill bit body 1 into the installation groove 3 of the drill pipe 2. When the bottom of the drill bit body 1 completely enters the installation groove 3, the fixing component will fix the drill bit body 1, and then the limiting component is used to further limit the fixing component. When disassembling, only need to sequentially move the limiting component and the fixing component, and the drill bit body 1 can be disassembled from the drill pipe 2. By simply moving the limiting component and the fixing component, the drill bit can be quickly disassembled and replaced. Compared with the traditional fixed bolt installation method, the use of tools and cumbersome steps are omitted. The simplified disassembly process makes the maintenance work more efficient and reduces the maintenance cost.

[0026] Referring to Figures 1 to 5 , in a preferred embodiment, the fixing component includes a sliding rod 8, the sliding rod 8 is slidably connected inside the movable groove 7, one end of the sliding rod 8 is fixedly connected with a clamping block 9, the outer side of the drill bit body 1 is equidistantly provided with clamping grooves 12, the top of the clamping block 9 abuts against the top of the inner wall of the clamping groove 12, one end of the sliding rod 8 extends to the outside of the drill pipe 2 and is fixedly connected with a connecting block 11, a second spring 10 is arranged on the outer side of the sliding rod 8, the top of the clamping block 9 is provided with an inclined surface, the limiting component includes a connecting rod 14, the connecting rod 14 is slidably connected inside the mounting block 13, the top of the connecting rod 14 is fixedly connected with a round block 15, a third spring 18 is arranged on the outer side of the connecting rod 14, the top of the round block 15 is fixedly connected with a fixing block 16, a notch 17 is opened at the bottom of the connecting block 11, and the top of the connecting block 11 abuts against the top of the inner wall of the notch 17;

[0027] In the above technical solution, considering that the traditional fixed bolt installation method is not easy to disassemble, it is rather troublesome to replace the drill bit and not easy to carry out the replacement. To solve such problems, the specific operation is as follows: Pull the connecting rod 14. At this time, the third spring 18 is compressed. Then insert the bottom of the drill bit body 1 into the installation groove 3 of the drill pipe 2. Under the action of the inclined surface, the clamping blocks 9 will bounce to both sides. At this time, the second spring 10 will be compressed. When the bottom of the drill bit body 1 completely enters the installation groove 3 and the clamping grooves 12 correspond to the clamping blocks 9, under the action of the second spring 10, the clamping blocks 9 are pushed into the clamping grooves 12 and are in contact with them, thereby fixing the drill bit body 1. Then release the connecting rod 14. Under the action of the third spring 18, the fixing block 16 is pushed upward into the notch 17, thereby limiting the connecting block 11 and further fixing the clamping blocks 9. When disassembling, just pull the connecting rod 14 and the connecting block 11 in sequence, so that the fixing block 16 moves downward and disengages from the notch 17. Then the connecting block 11 drives the sliding rod 8 and the clamping blocks 9 to move, so that the clamping blocks 9 disengage from the clamping grooves 12, and the drill bit body 1 can be separated from the drill pipe 2. By pulling the connecting rod 14 and the connecting block 11, fast and simple drill bit replacement can be achieved, reducing the complex bolt disassembly steps in the traditional method and improving the convenience of operation.

[0028] Referring to Figures 1 to 5 , in a preferred embodiment, a first spring 6 is arranged at the bottom of the inner wall of the installation groove 3, and the top of the first spring 6 abuts against the bottom of the drill bit body 1; by arranging the first spring 6, constantly pressing on the drill bit body 1 can make the clamping blocks 9 better abut against the clamping grooves 12 and improve the fixing effect of the drill bit body 1.

[0029] Working principle: When in use, first pull the connecting rod 14. At this time, the third spring 18 is compressed. Then insert the bottom of the drill bit body 1 into the installation groove 3 of the drill pipe 2. Under the action of the inclined surface, the clamping blocks 9 will bounce to both sides. At this time, the second spring 10 will be compressed. When the bottom of the drill bit body 1 completely enters the installation groove 3 and the clamping grooves 12 correspond to the clamping blocks 9, under the action of the second spring 10, the clamping blocks 9 are pushed into the clamping grooves 12 and are in contact with them, thereby fixing the drill bit body 1. Then release the connecting rod 14. Under the action of the third spring 18, the fixing block 16 is pushed upward into the notch 17, thereby limiting the connecting block 11 and further fixing the clamping blocks 9. When disassembling, just pull the connecting rod 14 and the connecting block 11 in sequence, so that the fixing block 16 moves downward and disengages from the notch 17. Then the connecting block 11 drives the sliding rod 8 and the clamping blocks 9 to move, so that the clamping blocks 9 disengage from the clamping grooves 12, and the drill bit body 1 can be separated from the drill pipe 2 to replace or maintain the drill bit. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] As described above, it is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present utility model and its inventive concept shall be covered within the protection scope of the present utility model.

Claims

1. A boring drill bit that is easy to quickly disassemble and replace, comprising a drill bit body (1), characterized in that: A drill rod (2) is arranged at the bottom of the drill body (1), a mounting groove (3) is arranged at the top of the drill rod (2), the interior of the mounting groove (3) is slidably connected to the bottom of the drill body (1), a collar (5) is fixedly connected to the top of the drill rod (2), a groove (4) is arranged at the bottom of the drill body (1), the outer side of the collar (5) is slidably connected to the interior of the groove (4), movable grooves (7) are equidistantly arranged inside the mounting groove (3), a fixing assembly is arranged inside the movable groove (7), two mounting blocks (13) are fixedly connected to the outer side of the drill rod (2), and limit position assemblies are arranged inside the two mounting blocks (13).

2. A boring drill bit that is easy to disassemble and replace quickly according to claim 1, characterized in that: The fixing assembly comprises a slide bar (8), the slide bar (8) being slidably connected inside the movable groove (7), one end of the slide bar (8) being fixedly connected to a clamping block (9), the outer side of the drill bit body (1) being provided with clamping grooves (12) at equal intervals, the top of the clamping block (9) being in contact with the top of the inner wall of the clamping groove (12), one end of the slide bar (8) extending to the outer side of the drill rod (2) and being fixedly connected to a connecting block (11), and a second spring (10) being arranged on the outer side of the slide bar (8).

3. A boring drill bit that is easy to disassemble and replace quickly according to claim 2, characterized in that: The top of the block (9) is provided with an inclined surface.

4. A boring drill bit that is easy to disassemble and replace quickly according to claim 3, characterized in that: The limit assembly comprises a connecting rod (14), the connecting rod (14) being slidably connected to the inside of the mounting block (13), a round block (15) being fixedly connected to the top of the connecting rod (14), and a third spring (18) being arranged on the outside of the connecting rod (14).

5. A boring drill bit that is easy to disassemble and replace quickly according to claim 4, characterized in that: The top of the round block (15) is fixedly connected to a fixing block (16), the bottom of the connecting block (11) is provided with a notch (17), and the top of the connecting block (11) abuts against the top of the inner wall of the notch (17).

6. The excavation drill bit that is easy to disassemble and replace quickly according to claim 1, characterized in that: A first spring (6) is provided at the bottom of the inner wall of the installation groove (3), and the top of the first spring (6) is in contact with the bottom of the drill body (1).

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