Diamond engineering thin-wall drill bit with E-shaped Great Wall teeth

Abstract

The utility model discloses an E-shaped Great Wall tooth diamond engineering thin-wall drill bit, which belongs to the technical field of diamond drill bits and comprises a cylindrical drill bit body, a drilling machine joint arranged at one end of the drill bit body and a plurality of arc-shaped tool bits uniformly distributed along the circumference of the end face of the other end of the drill bit body. The top end of the arc-shaped tool bit is a Great Wall-shaped section, and the side face of the arc-shaped tool bit is an E-shaped turbine groove cutting tooth. The drill bit is simple in manufacturing process, sharp and durable, small in contact area between the tooth crest of the E-shaped Great Wall tooth and a cutting point, accurate in drilling positioning and free of edging before use, and has the advantages of high drilling and cutting speed and high drilling efficiency due to the E-shaped side chip groove of the arc-shaped tool bit. The problems that an existing diamond drill bit with the tooth crest and the outer side being of a plane structure is inaccurate in positioning, low in drilling and cutting speed and low in drilling efficiency are solved.

Description

Technical Field

[0001] This utility model relates to the field of diamond drill bit technology, and in particular to a mountain-shaped Great Wall tooth diamond engineering thin-walled drill bit. Background Technology

[0002] Diamond engineering thin-walled drill bits have a simple structure and high strength, high wear resistance and impact resistance. They are mainly used for drilling reinforced concrete, stone, refractory bricks and asphalt pavement.

[0003] Currently, the cutting edges and inner and outer sides of diamond thin-walled engineering drill bits used for engineering drilling both domestically and internationally are flat. This results in a large contact area between the drill bit and the workpiece during operation, requiring greater pressure and higher drilling power, thus leading to high labor intensity and low work efficiency. In addition, because the tooth tips are mostly flat, existing diamond thin-walled engineering drill bits often suffer from difficulties in positioning and slow drilling speeds. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mountain-shaped Great Wall tooth diamond engineering thin-walled drill bit to solve the problems of inaccurate positioning, slow drilling and cutting speed, and low drilling efficiency of existing diamond drill bits with planar tooth top and outer side structures.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A mountain-shaped Great Wall tooth diamond engineering thin-walled drill bit includes a cylindrical drill bit body, a drill joint disposed at one end of the drill bit body, and a plurality of arc-shaped cutter heads evenly distributed along the circumference of the other end face of the drill bit body. The top of the arc-shaped cutter head has a Great Wall-shaped cross-section, and the side has mountain-shaped turbine groove cutting teeth.

[0007] A further improvement of this utility model is that: the right end of the drilling rig connector is hexagonal; the center of the drilling rig connector is provided with a first thread for connection with the engineering drilling rig; and the outer wall of the left end of the drilling rig connector is provided with a second thread for connection with the drill bit body.

[0008] A further improvement of this utility model is that the inner wall of the right end of the drill bit body is provided with a third thread that cooperates with the second thread of the drill rig connector.

[0009] A further improvement of this utility model is that: the end of the drill bit body connected to the arc-shaped cutter head has a T-shaped boss with a T-shaped structure along its axial section.

[0010] A further improvement of this utility model is that: the T-shaped boss is an annular boss, the inner diameter of the annular boss is 0.5-1 mm larger than the inner diameter of the drill bit body; the outer diameter of the annular boss is 0.5-1 mm larger than the outer diameter of the drill bit body.

[0011] A further improvement of this utility model is that the thickness of the annular boss is 2-3 mm.

[0012] A further improvement of this utility model is that five arc-shaped cutter heads are provided.

[0013] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:

[0014] The diamond engineering thin-walled drill bit with mountain-shaped Great Wall teeth provided by this utility model is sharp and durable. The contact area between the tooth tip and the cutting point is small, which has the advantages of accurate drilling positioning and no need to sharpen before use. In addition, the chip removal groove on the side of the cutter head on the drill bit body has the characteristics of fast drilling and cutting speed and high drilling efficiency. Moreover, the manufacturing process is simple, which solves the shortcomings and defects of existing drill bits such as difficult drilling positioning, slow drilling and cutting speed, and low drilling and cutting efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the axial cross-sectional structure of the mountain-shaped Great Wall tooth diamond engineering thin-walled drill bit provided in this embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the arc-shaped cutter head structure in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the arc-shaped cutter head in an embodiment of this utility model;

[0019] Among them, 1. Drill rig connector; 2. Drill bit body; 3. Arc-shaped cutter head; 4. First thread; 5. Second thread; 6. Third thread; 7. T-shaped boss. Detailed Implementation

[0020] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0024] like Figure 1-3 As shown, a mountain-shaped Great Wall tooth diamond engineering thin-walled drill bit includes a cylindrical drill bit body 2, a drill joint 1 disposed at one end of the drill bit body 2, and several arc-shaped cutter heads 3 evenly distributed along the circumference of the other end face of the drill bit body 2. The top of the arc-shaped cutter head 3 has a Great Wall-shaped cross-section, and the side has mountain-shaped turbine groove cutting teeth.

[0025] Specifically: the right end of the drill rig connector 1 is hexagonal, and the center of it is provided with the first thread 4 for connecting with the engineering drill rig; the outer wall of the left end of the drill rig connector 1 is provided with the second thread 5 for connecting with the drill bit body 2.

[0026] The inner wall of the right end of the drill bit body 2 is provided with a third thread 6 that mates with the second thread 5 of the drill rig connector 1. The second thread 5 and the third thread 6 are assembled and used to transmit torque. The left end of the drill bit body 2 is provided with an annular boss. The inner and outer diameters of the annular boss are 0.5-1 mm larger than the inner and outer diameters of the drill bit body 2. The thickness of the annular boss is 2-3 mm. That is, the left end of the drill bit body 2 has a T-shaped boss 7 with a T-shaped structure along its axial section.

[0027] In this embodiment, a total of 5 arc-shaped cutter heads 3 are provided, such as... Figure 2 , Figure 3 As shown, the arc-shaped cutter head 3 has a Great Wall-shaped cross-section at the top and a mountain-shaped turbine groove cutting tooth on the side. It is arc-shaped and made of metal powder and diamond particles. It is evenly distributed along the circumference of the end face of the T-shaped boss 7 of the drill bit body 2.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mountain-shaped Great Wall-shaped diamond engineering thin-walled drill bit, comprising a cylindrical drill bit body (2), a drill joint (1) disposed at one end of the drill bit body (2), and a plurality of arc-shaped cutting edges (3) evenly distributed along the circumference of the other end face of the drill bit body (2), characterized in that: The top of the arc-shaped cutter head (3) has a Great Wall-shaped cross section, and the side has a mountain-shaped turbine groove cutting tooth.

2. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 1, characterized in that: The right end of the drill joint (1) is hexagonal; the center of the drill joint (1) is provided with a first thread (4) for connecting with the engineering drill; the outer wall of the left end of the drill joint (1) is provided with a second thread (5) for connecting with the drill bit body (2).

3. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 2, characterized in that: The inner wall of the right end of the drill bit body (2) is provided with a third thread (6) that cooperates with the second thread (5) of the drill rig connector (1).

4. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 1, characterized in that: The end of the drill bit body (2) connected to the arc-shaped cutter head (3) has a T-shaped boss (7) with a T-shaped structure along its axial section.

5. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 4, characterized in that: The T-shaped boss (7) is an annular boss, and the inner diameter of the annular boss is 0.5-1 mm larger than the inner diameter of the drill bit body (2); the outer diameter of the annular boss is 0.5-1 mm larger than the outer diameter of the drill bit body (2).

6. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 5, characterized in that: The thickness of the annular boss is 2-3 mm.

7. The "mountain-shaped Great Wall tooth" diamond engineering thin-walled drill bit according to claim 1, characterized in that: Five arc-shaped cutter heads (3) are provided.

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