Partitioned composite sheet for coring bits

Abstract

The utility model discloses a kind of partition type composite sheets for coring drill bit, belong to coring drill bit field, including coring drill bit body, the output end of the coring drill bit body is provided with composite sheet mounting seat, the one side of the composite sheet mounting seat is provided with installation groove, the composite sheet body for contacting cutting surface and cutting is installed in the installation groove;Multiple-arc cutting edge, half-arc cutting edge and long-arc cutting edge are set up on the cutting head of composite sheet body, realize partition cutting by reasonable distribution layout, can according to the different material characteristics and cutting demand, give full play to the advantage of each cutting edge, significantly improve the cutting efficiency of coring drill bit, anti-skid pattern on mounting block and the welding connection of coring drill bit body and composite sheet mounting seat, the stability of composite sheet body installation is enhanced, effectively reduce the risk that composite sheet loosens, falls off in coring operation process, to prolong the service life of composite sheet and coring drill bit.

Description

Technical Field

[0001] This utility model belongs to the field of core drill bit technology, specifically relating to a partitioned composite sheet for core drill bits. Background Technology

[0002] In fields such as geological exploration, mineral mining, and construction, coring drill bits are widely used to obtain underground rock core samples or to extract cores from materials such as concrete. Traditional coring drill bits have a single structure and a fixed cutting edge, which makes it impossible to achieve efficient cutting when faced with materials of different textures and hardness.

[0003] When drilling into rock layers with uneven hardness, a single cutting edge cannot simultaneously achieve rapid drilling and reduced wear, resulting in low coring efficiency and short service life of composite cutting sheets. Furthermore, during long-term, high-intensity coring operations, composite cutting sheets are prone to loosening and falling off, which in turn affects the normal progress of coring work. Utility Model Content

[0004] The purpose of this invention is to provide a partitioned composite sheet for core drilling bits to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a partitioned composite plate for a core drill bit, comprising a core drill bit body, a composite plate mounting base provided at the output end of the core drill bit body, a mounting groove provided on one side of the composite plate mounting base, and a composite plate body for contacting the cutting surface and performing cutting installed in the mounting groove;

[0006] The composite sheet body includes a mounting block installed in a mounting groove. A body base is fixedly connected to the side of the mounting block away from the mounting groove. A cutting head is fixedly connected to the end of the body base opposite to the mounting block.

[0007] Using the above scheme, the composite sheet body is installed at the output end of the core drill bit body. The composite sheet mounting base is the structure for installing the composite sheet body. The mounting groove provides a precise installation and positioning space for the composite sheet body, ensuring that the composite sheet is in the correct position when the core drill bit is working, ensuring the accuracy of the cutting operation. The cutting head is in the foremost position and directly contacts the cutting surface to undertake the actual cutting work.

[0008] In a preferred embodiment, a composite plate mounting base is fixedly connected to the output end of the core drill bit body by welding, and the mounting groove is opened on the outer side of the composite plate mounting base.

[0009] Using the above scheme, welding, as a high-strength connection method, can form a firm bond between the core drill bit body and the composite plate mounting base, and withstand the huge cutting force and impact force generated during the core drilling operation. The mounting groove is set on the outer side, which facilitates the installation and disassembly of the composite plate body. At the same time, the composite plate body can directly contact the cutting surface.

[0010] In a preferred embodiment, the mounting block is inserted into the mounting groove, and the outer surface of the mounting block is provided with anti-slip texture, which is in the form of a cross-shaped mesh.

[0011] Using the above scheme, the mounting block and mounting groove are connected to fix the position of the cutting head, and the cutting head performs cutting. The cross-shaped anti-slip texture greatly increases the friction between the mounting block and the inner wall of the mounting groove. The interference fit between the two gives the cutting head the advantage of high stability during operation.

[0012] In a preferred embodiment, the cutting head includes a cutting seat fixedly connected to the side end of the body base, and the cutting seat has a multi-arc cutting edge, a semi-arc cutting edge and a long arc cutting edge on the end opposite to the body base.

[0013] The above-mentioned design, combining multi-arc cutting edges, semi-arc cutting edges, and long-arc cutting edges, overcomes the limitations of traditional composite blades with a single cutting edge. The multi-arc cutting edge has multiple arc-shaped cutting edges, which can apply cutting force simultaneously through multiple points of force when crushing harder materials, effectively dispersing stress, reducing the load on a single cutting edge, and improving crushing efficiency. The arc shape of the semi-arc cutting edge allows it to better adapt to material changes during intermediate transition cutting, maintaining the continuity and stability of cutting and reducing cutting resistance. The long-arc cutting edge has advantages in completing edge trimming and other tasks. Its longer arc shape can cut a larger area at once, improving the efficiency and quality of edge trimming and making the edges of the extracted core sample more regular.

[0014] In a preferred embodiment, the multi-arc cutting edge, the semi-arc cutting edge, and the long-arc cutting edge are distributed in a semi-arc shape along the outer surface of the cutting seat, and the semi-arc cutting edge is located in the middle position of the multi-arc cutting edge and the long-arc cutting edge.

[0015] Using the above scheme, during the rotary cutting process of the core drill bit, the cutting force will be distributed along the circumference. The semi-arc distribution can make the multi-arc cutting edge, the semi-arc cutting edge and the long arc cutting edge bear the cutting force evenly, avoiding damage to the cutting edge caused by excessive local force. The semi-arc cutting edge is located in the middle position, which can well connect the cutting work of the multi-arc cutting edge and the long arc cutting edge, making the cutting process smoother.

[0016] In a preferred embodiment, the outer surface of the cutting seat has a protrusion between the multi-arc cutting edge and the long-arc cutting edge, and the protrusion itself has an arc.

[0017] By adopting the above solution, the protrusion on the cutting seat forms a guide channel, which can guide the cutting chips to be discharged from the cutting area along the arc direction of the protrusion, avoiding chip residue and thus affecting cutting efficiency.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The cutting head of the composite sheet body has multi-arc cutting edges, semi-arc cutting edges, and long-arc cutting edges. Through reasonable distribution and layout, it realizes zoned cutting. According to different material properties and cutting requirements, it can give full play to the advantages of each cutting edge, significantly improving the cutting efficiency of the core drill bit. The anti-slip texture on the mounting block and the welded connection between the core drill bit body and the composite sheet mounting seat enhance the stability of the composite sheet body installation, effectively reducing the risk of the composite sheet loosening and falling off during the core operation, thereby extending the service life of the composite sheet and the core drill bit. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the composite sheet mounting base structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the composite sheet body structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the planar structure of the cutting head of this utility model;

[0024] Figure 5 This is a top view schematic diagram of the cutting head structure of this utility model.

[0025] In the figure: 1. Core drill bit body; 2. Composite disc body; 3. Composite disc mounting base; 4. Mounting slot; 21. Mounting block; 22. Body base; 23. Cutting head; 231. Cutting seat; 232. Multi-arc cutting edge; 233. Semi-arc cutting edge; 234. Long arc cutting edge. Detailed Implementation

[0026] Please see Figure 1-5 This utility model provides a partitioned composite sheet for a core drill bit, including a core drill bit body 1, a composite sheet mounting base 3 is provided at the output end of the core drill bit body 1, and a mounting groove 4 is provided on one side of the composite sheet mounting base 3. The composite sheet body 2 for contacting the cutting surface and performing cutting is installed in the mounting groove 4.

[0027] The composite sheet body 2 includes a mounting block 21 installed in the mounting groove 4. A body base 22 is fixedly connected to the side of the mounting block 21 away from the mounting groove 4. A cutting head 23 is fixedly connected to the end of the body base 22 opposite to the mounting block 21.

[0028] The composite plate body 2 is installed at the output end of the core drill bit body 1. The composite plate mounting base 3 is the structure for installing the composite plate body 2. The mounting groove 4 provides a precise installation and positioning space for the composite plate body 2, ensuring that the composite plate is in the correct position when the core drill bit is working, thus ensuring the accuracy of the cutting operation. The cutting head 23 is in the foremost position and directly contacts the cutting surface to undertake the actual cutting work.

[0029] A composite plate mounting base 3 is fixedly connected to the output end of the core drill bit body 1 by welding, and the mounting groove 4 is opened on the outer side of the composite plate mounting base 3.

[0030] Welding, as a high-strength connection method, can form a firm bond between the core drill bit body 1 and the composite plate mounting base 3, and withstand the huge cutting force and impact force generated during the core drilling operation. The mounting groove 4 is located on the outer side, which facilitates the installation and disassembly of the composite plate body 2. At the same time, the composite plate body 2 can directly contact the cutting surface.

[0031] The mounting block 21 is inserted into the mounting slot 4, and the outer surface of the mounting block 21 is provided with anti-slip texture, which is in the form of a cross mesh pattern.

[0032] The mounting block 21 and the mounting groove 4 are connected to fix the position of the cutting head 23. The cutting head 23 performs cutting. The cross-shaped anti-slip texture greatly increases the friction between the mounting block 21 and the inner wall of the mounting groove 4. The interference fit between the two gives the cutting head 23 the advantage of high stability during operation.

[0033] The cutting head 23 includes a cutting seat 231 fixedly connected to the side of the main body base 22. The cutting seat 231 has a multi-arc cutting edge 232, a semi-arc cutting edge 233 and a long arc cutting edge 234 on the side opposite to the main body base 22.

[0034] The combined design of the multi-arc cutting edge 232, the semi-arc cutting edge 233, and the long-arc cutting edge 234 changes the limitations of the traditional single cutting edge of the composite blade. The multi-arc cutting edge 232 has multiple arc-shaped cutting edges, which can apply cutting force at multiple points of force when crushing harder materials, effectively dispersing stress, reducing the load on a single cutting edge, and improving crushing efficiency. The arc shape of the semi-arc cutting edge 233 allows it to better adapt to changes in materials during intermediate transition cutting, maintain the continuity and stability of cutting, and reduce cutting resistance. The long-arc cutting edge 234 plays an advantage when completing edge trimming and other tasks. Its longer arc shape can cut a larger area at once, improving the efficiency and quality of edge trimming and making the edges of the extracted core sample more regular.

[0035] The multi-arc cutting edge 232, the semi-arc cutting edge 233 and the long arc cutting edge 234 are distributed in a semi-arc shape along the outer surface of the cutting seat 231, and the semi-arc cutting edge 233 is located in the middle position of the multi-arc cutting edge 232 and the long arc cutting edge 234.

[0036] During the rotary cutting process of the core drill bit, the cutting force is distributed along the circumference. The semi-arc distribution allows the multi-arc cutting edge 232, the semi-arc cutting edge 233, and the long arc cutting edge 234 to bear the cutting force evenly, avoiding damage to the cutting edge caused by excessive local force. The semi-arc cutting edge 233 is located in the middle position, which can well connect the cutting work of the multi-arc cutting edge 232 and the long arc cutting edge 234, making the cutting process smoother.

[0037] The outer surface of the cutting seat 231 has protrusions between the multi-arc cutting edge 232, the semi-arc cutting edge 233 and the long-arc cutting edge 234, and the protrusions themselves are curved.

[0038] The protrusion on the cutting seat 231 forms a guide channel, which can guide the cutting chips to be discharged from the cutting area along the arc direction of the protrusion, so as to avoid chip residue and thus affect the cutting efficiency.

[0039] In use, the coring drill bit with the partitioned composite blade is installed on the drilling equipment and operation begins. When the working coring drill bit contacts the material to be cored, the multi-arc cutting edge 232, the semi-arc cutting edge 233, and the long-arc cutting edge 234 perform partitioned cutting according to the hardness, texture, and other characteristics of the material. When drilling into a high-hardness granite layer, the multi-arc cutting edge 232 plays its role first, with multiple arc-shaped cutting edges simultaneously crushing and cutting the granite, breaking the hard rock into small pieces. Subsequently, the semi-arc cutting edge 233 further cuts and refines the crushed rock. Finally, the long-arc cutting edge 234 completes the edge trimming work, making the edges of the extracted rock core neat. During the cutting process, the cutting debris is guided by the arc-shaped protrusion on the cutting seat 231 and thrown out of the cutting area by the centrifugal force generated by the rotation of the coring drill bit, avoiding accumulation. After the coring work is completed, the drilling equipment can be turned off.

Claims

1. A partitioned composite sheet for core drilling bits, characterized in that: The device includes a core drill bit body (1), and a composite plate mounting base (3) is provided at the output end of the core drill bit body (1). A mounting groove (4) is provided on one side of the composite plate mounting base (3), and a composite plate body (2) for contacting the cutting surface and performing cutting is installed in the mounting groove (4). The composite sheet body (2) includes a mounting block (21) installed in the mounting groove (4). A body base (22) is fixedly connected to the side of the mounting block (21) away from the mounting groove (4). A cutting head (23) is fixedly connected to the end of the body base (22) opposite to the mounting block (21). The cutting head (23) includes a cutting seat (231) fixedly connected to the side of the body base (22). The cutting seat (231) has a multi-arc cutting edge (232), a semi-arc cutting edge (233) and a long arc cutting edge (234) on the side opposite to the body base (22).

2. The partitioned composite sheet for core drilling bits according to claim 1, characterized in that: The output end of the core drill bit body (1) is fixedly connected to a composite plate mounting base (3) by welding, and the mounting groove (4) is opened on the outer side of the composite plate mounting base (3).

3. The partitioned composite sheet for core drilling bits according to claim 1, characterized in that: The mounting block (21) is inserted into the mounting groove (4), and the outer surface of the mounting block (21) is provided with anti-slip texture, which is in the form of a cross mesh.

4. The partitioned composite sheet for a core drill bit according to claim 1, characterized in that: The multi-arc cutting edge (232), the semi-arc cutting edge (233) and the long arc cutting edge (234) are distributed in a semi-arc shape along the outer surface of the cutting seat (231), and the semi-arc cutting edge (233) is located in the middle position of the multi-arc cutting edge (232) and the long arc cutting edge (234).

5. A partitioned composite sheet for a core drill bit according to claim 1, characterized in that: The outer surface of the cutting seat (231) has protrusions between the multi-arc cutting edge (232), the semi-arc cutting edge (233) and the long-arc cutting edge (234), and the protrusions themselves are curved.

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