Three-tip two-blade-shaped composite sheet for coring bit

Abstract

The utility model discloses a three-tip and two-blade-shaped composite sheet for a coring bit. The three-tip and two-blade-shaped composite sheet comprises a coring bit body, a mounting seat is arranged on one side of the coring bit body, and a positioning groove is formed in one side of the mounting seat; wherein the other side of the mounting seat is provided with a composite sheet base layer, and the other side of the composite sheet base layer is provided with a composite sheet surface layer; wherein one side of the composite sheet surface layer is provided with the composite sheet cutting edge, one side of the composite sheet cutting edge is provided with the composite sheet tip end, and the composite sheet tip end is stressed to carry out crushing operation by arranging the composite sheet cutting edge, the composite sheet tip end and the chip groove on one side of the composite sheet surface layer. Smashed stone slag is discharged through the peripheral chip discharging grooves, the purpose of improving the coring and crushing efficiency of the drill bit is achieved, by arranging the positioning groove, the positioning block and the installation base, the situation that a composite piece cutting edge and a composite piece tip on one side of a composite piece surface layer deviate in the welding process is avoided, and drill bit coring welding is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the field of mining drill bits, in particular to a three-pointed two-edged composite piece for a core drill bit. Background Art

[0002] Diamond composite sheet is a composite material synthesized by diamond layer and cemented carbide matrix under high temperature and high pressure conditions. The diamond layer has the characteristics of high hardness and good wear resistance, while the cemented carbide improves the flexibility and weldability of the composite material as a whole.

[0003] Publication No. CN219412474U discloses a semi-cylindrical composite sheet and its anchor drill bit, coreless drill bit, and coring drill bit. The composite sheet changes the circular polycrystalline diamond composite sheet in the prior art into a semi-cylindrical composite sheet. When fixedly installed on the anchor drill bit, coreless drill bit, coring drill bit and other tools, the composite sheet is arranged prone, so that the cylindrical surface is upward as the cutting part, and the flat surface is downward as the installation and connection part. In this way, only half of the original amount of diamond material is needed to achieve the original cutting effect, which can save the amount of diamond and reduce the production cost of the polycrystalline diamond composite sheet and related drill bits. However, the patent still has the following problems in actual use:

[0004] The device achieves the effect of enhancing the coring drill bit's mining by setting a circular diamond composite piece. However, since the stress point of the coring drill bit is relatively smooth when encountering broken strata, the drilling speed of the coring drill bit is slow. Therefore, the crushing efficiency of the coring drill bit is low, resulting in poor practicality of the coring drill bit.

[0005] A three-pointed two-edged composite piece for a core drill is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide a three-pointed two-edged composite piece for a coring drill bit, so as to solve the problem proposed in the above-mentioned background technology that the current device realizes the enhanced mining effect of the coring drill bit by setting a circular diamond composite piece, but because the stress point of the coring drill bit is relatively smooth when encountering broken strata, the drilling speed of the coring drill bit is slow, so the crushing efficiency of the coring drill bit is low, thereby resulting in poor practicability of the coring drill bit.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-pointed two-edged composite piece for a coring drill bit, comprising a coring drill bit body;

[0008] Also includes:

[0009] A mounting seat is provided on one side of the coring drill body, and a positioning groove is provided on one side of the mounting seat;

[0010] Wherein, a composite sheet base layer is arranged on the other side of the mounting seat, a positioning block is arranged on one side of the composite sheet base layer, and a composite sheet surface layer is arranged on the other side of the composite sheet base layer;

[0011] A composite sheet cutting edge is arranged on one side of the composite sheet surface layer, a composite sheet tip is arranged on one side of the composite sheet cutting edge, and a chip removal groove is arranged on one side of the composite sheet tip.

[0012] Preferably, one end of the coring drill body is fixedly connected to a mounting seat, and a positioning groove is provided on one side of the mounting seat, and a supporting groove is provided on one side of the positioning groove to facilitate the positioning of the composite piece.

[0013] Preferably, a positioning block is fixedly connected in the middle of one side of the composite sheet base layer, and a composite sheet surface layer is fixedly connected on the other side of the composite sheet base layer, so as to facilitate the positioning of the composite sheet and the mounting seat.

[0014] Preferably, a composite sheet cutting edge is provided at an end portion of one side of the composite sheet surface layer, and a composite sheet tip is connected to one side of the composite sheet cutting edge, so as to improve the crushing efficiency.

[0015] Preferably, the positioning groove is opened on one side of the mounting seat perpendicular to the coring drill body, and one side of the supporting groove is fixedly connected to a side of the mounting seat close to the coring drill body, so as to facilitate the positioning of the composite sheet by the mounting seat.

[0016] Preferably, the composite sheet base layer is engaged with a positioning groove on one side of the mounting seat through a positioning block, so as to facilitate the connection between the composite sheet and the mounting seat.

[0017] Preferably, the tips of the composite sheets are symmetrically arranged on both sides of the cutting edge of the composite sheet, and the chip removal grooves are arranged on both sides of the cutting edge of the composite sheet, so as to improve the crushing efficiency.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the core drill bit uses a three-pointed two-edged composite piece, and by arranging a composite piece cutting edge, a composite piece tip and a chip groove on one side of the composite piece surface layer, the composite piece tip is subjected to force to perform a crushing operation, and the crushed stone debris is discharged by the surrounding chip grooves, thereby achieving the purpose of improving the core crushing efficiency of the drill bit, and by arranging the positioning groove, the positioning block and the mounting seat, the composite piece cutting edge and the composite piece tip on one side of the composite piece surface layer are prevented from being offset during welding, so that the welding of the drill bit core is more convenient and quick, so that the device is more practical, and its specific contents are as follows:

[0019] 1. The drill bit core is provided with a composite piece cutting edge, a composite piece tip and a chip groove on one side of the composite piece surface layer, so that the composite piece tip provides a force point for the composite piece through the concave-convex composite piece cutting edge and the composite piece tip, and the composite piece tip is subjected to force to perform a crushing operation, and the crushed stone debris is discharged through the surrounding chip grooves, thereby enhancing the crushing effect on the broken stratum, and achieving the purpose of improving the crushing efficiency of the drill bit core;

[0020] 2. The drill core is provided with a positioning groove, a positioning block and a mounting seat, so that the positioning groove and the positioning block can be used to realize the engagement of the composite sheet base layer and the mounting seat, thereby avoiding the offset of the composite sheet cutting edge and the composite sheet tip on one side of the composite sheet surface layer during welding, making the welding of the drill core more convenient and quick, thereby making the device more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the coring drill bit of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the mounting seat of the utility model;

[0023] Figure 3 This is a side view of the mounting seat structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the surface structure of the composite sheet of the utility model;

[0025] Figure 5 This is a schematic diagram of the cutting edge structure of the composite sheet of the utility model.

[0026] In the figure: 1. core drill body; 2. mounting seat; 3. positioning groove; 4. support groove; 5. composite sheet base layer; 6. positioning block; 7. composite sheet surface layer; 8. composite sheet cutting edge; 9. composite sheet tip; 10. chip groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5The utility model provides a technical solution: a three-pointed two-edged composite piece for a coring drill bit, comprising a coring drill bit body 1; further comprising: a mounting seat 2 is provided on one side of the coring drill bit body 1, and a positioning groove 3 is provided on one side of the mounting seat 2; one end of the coring drill bit body 1 is fixedly connected to the mounting seat 2, and a positioning groove 3 is provided on one side of the mounting seat 2, and a supporting groove 4 is provided on one side of the positioning groove 3; the positioning groove 3 is perpendicular to the coring drill bit body 1 and is provided on one side of the mounting seat 2, and one side of the supporting groove 4 is fixedly connected to the mounting seat 2 on one side close to the coring drill bit body 1, such as Figure 1 , 2 As shown in Figure 3, by providing a positioning groove 3 and a supporting groove 4 on one side of the mounting seat 2, it is convenient to limit the position of the composite sheet base layer 5, so that it is convenient to limit the position of the composite sheet cutting edge 8 and the composite sheet tip 9 on one side of the composite sheet surface layer 7 through the engagement of the positioning block 6 with the positioning groove 3, thereby facilitating the rapid welding of the composite sheet base layer 5 and the mounting seat 2, thereby making the core drill body 1 more convenient and quicker to use.

[0029] Among them, a composite sheet base layer 5 is provided on the other side of the mounting seat 2, and a positioning block 6 is provided on one side of the composite sheet base layer 5, and a composite sheet surface layer 7 is provided on the other side of the composite sheet base layer 5; a positioning block 6 is fixedly connected in the middle of one side of the composite sheet base layer 5, and a composite sheet surface layer 7 is fixedly connected on the other side of the composite sheet base layer 5; the composite sheet base layer 5 is engaged with the positioning groove 3 on one side of the mounting seat 2 through the positioning block 6, such as Figure 1 , 2 As shown in FIG. 5 , by providing a positioning block 6 on one side of the composite sheet base layer 5, the connection position of the composite sheet base layer 5 and the coring drill body 1 can be more accurate, thereby facilitating the use of the coring drill body 1 and making the device more practical.

[0030] Among them, a composite sheet cutting edge 8 is provided on one side of the composite sheet surface layer 7, and a composite sheet tip 9 is provided on one side of the composite sheet cutting edge 8, and a chip groove 10 is provided on one side of the composite sheet tip 9; a composite sheet cutting edge 8 is opened at the end of one side of the composite sheet surface layer 7, and a composite sheet tip 9 is connected to one side of the composite sheet cutting edge 8; the composite sheet tip 9 is symmetrically arranged on both sides of the composite sheet cutting edge 8, and the chip groove 10 is arranged on both sides of the composite sheet cutting edge 8, such as Figure 1 , 2 As shown in Figures 4 and 5, by arranging the composite piece tip 9, the composite piece cutting edge 8 and the chip groove 10, when encountering broken strata, during the drilling process, the drill bit has three stress points through the composite piece tip 9, and the concave and convex composite piece tip 9 and the composite piece cutting edge 8 are used to make the sharp corners bear force for crushing operations, and the broken stone debris is discharged through the surrounding chip grooves 10, thereby achieving the effect of improving the crushing efficiency of the core drill bit body 1, making the core drill bit body 1 more practical.

[0031] Working principle: First, place the composite sheet base layer 5 on the top of the support groove 4, and make the composite sheet base layer 5 engage with the positioning groove 3 on one side of the mounting seat 2 through the positioning block 6, and then weld the composite sheet base layer 5 and the mounting seat 2.

[0032] Secondly, when the core drill body 1 is rotated, the core drill body 1 crushes the crushed layer through the composite sheet tip 9 and the composite sheet cutting edge 8 on one side of the composite sheet surface layer 7, and then the crushed chips are discharged through the chip discharge groove 10.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A three-pointed two-edged composite piece for a coring drill bit, comprising a coring drill bit body (1); It is characterized in that Also includes: A mounting seat (2) is provided on one side of the coring drill body (1), and a positioning groove (3) is provided on one side of the mounting seat (2); Wherein, a composite sheet base layer (5) is arranged on the other side of the mounting seat (2), a positioning block (6) is arranged on one side of the composite sheet base layer (5), and a composite sheet surface layer (7) is arranged on the other side of the composite sheet base layer (5); A composite sheet cutting edge (8) is provided on one side of the composite sheet surface layer (7), a composite sheet tip (9) is provided on one side of the composite sheet cutting edge (8), and a chip removal groove (10) is provided on one side of the composite sheet tip (9).

2. The three-pointed two-edged composite piece for a core drill according to claim 1, characterized in that: One end of the coring drill body (1) is fixedly connected to a mounting seat (2), a positioning groove (3) is provided on one side of the mounting seat (2), and a supporting groove (4) is provided on one side of the positioning groove (3).

3. The three-pointed two-edged composite piece for a core drill according to claim 1, characterized in that: A positioning block (6) is fixedly connected in the middle of one side of the composite sheet base layer (5), and a composite sheet surface layer (7) is fixedly connected on the other side of the composite sheet base layer (5).

4. The three-pointed two-edged composite piece for a core drill according to claim 1, characterized in that: A composite sheet cutting edge (8) is provided at an end portion of one side of the composite sheet surface layer (7), and a composite sheet tip (9) is connected to one side of the composite sheet cutting edge (8).

5. The three-pointed two-edged composite piece for a core drill according to claim 2, characterized in that: The positioning groove (3) is opened on one side of the mounting seat (2) perpendicular to the coring drill body (1), and one side of the supporting groove (4) is fixedly connected to a side of the mounting seat (2) close to the coring drill body (1).

6. The three-pointed two-edged composite piece for a core drill according to claim 3, characterized in that: The composite sheet base layer (5) is engaged with a positioning groove (3) on one side of the mounting seat (2) via a positioning block (6).

7. The three-pointed two-edged composite piece for a core drill according to claim 4, characterized in that: The composite sheet tip (9) is symmetrically located on both sides of the composite sheet cutting edge (8), and the chip removal grooves (10) are arranged on both sides of the composite sheet cutting edge (8).

Images