Polycrystalline diamond compact

Abstract

The utility model relates to the technical field of superhard composite materials, and discloses a polycrystalline diamond compact which comprises a hard alloy substrate, the top of the hard alloy substrate is fixedly connected with a polycrystalline diamond layer, and the top of the polycrystalline diamond layer is fixedly connected with four groups of first protrusions. The top of the polycrystalline diamond layer is further fixedly connected with four sets of second protrusions, cutting edges are arranged on the tops of the first protrusions and the tops of the second protrusions, the four sets of first protrusions and the four sets of second protrusions are circumferentially arranged at equal intervals around the circle center of the top of the polycrystalline diamond layer, and the first protrusions and the second protrusions are arranged in a crossed mode. The length of the first protrusion is consistent with that of the second protrusion, and the height of the first protrusion is larger than that of the second protrusion. According to the utility model, the problems of high cost and influence on the use continuity caused by regular replacement due to abrasion of the device are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to superhard composite material technical field especially relates to a polycrystal diamond compact. BACKGROUND

[0002] Polycrystal diamond compact is a new type of functional material, which is sintered from diamond powder and hard alloy substrate under superhigh pressure and high temperature. This material combines the high hardness, high wear resistance and thermal conductivity of diamond with the strength and impact toughness of hard alloy, making it an ideal material for manufacturing cutting tools, drilling bits and other wear-resistant tools.

[0003] In the Chinese utility model patent with the publication number CN221920834U, a polycrystal diamond compact is disclosed. This polycrystal diamond compact has the characteristics of simple structure, high utilization rate, and low cutting resistance. It can also consider the impact toughness of the product and has good heat dissipation effect. During drilling and drilling, the special bevel cutting structure design of the polycrystal diamond compact as a wear-resistant cutting element can prevent the polycrystal diamond compact from being stressed, greatly reducing the occurrence of polycrystal diamond compact edge collapse during footage, improving footage efficiency, reducing polycrystal diamond compact replacement frequency, and greatly improving drilling mechanical drilling speed, thereby improving drilling efficiency and stability of the drilling platform. According to the related technology in the above, the inventors believe that the following defects exist:

[0004] The device needs to be replaced regularly during actual use because the polycrystal diamond compact will inevitably wear during the process of eating into the rock, which not only increases the cost but also affects the continuity of the device during use. Therefore, we provide a polycrystal diamond compact. UTILITY MODEL CONTENT

[0005] To solve the high cost and affect the continuity of the device due to the need for regular replacement of the device in the above background technology, the utility model provides a polycrystal diamond compact.

[0006] The utility model adopts the following technical scheme: a polycrystal diamond compact, comprising a hard alloy substrate, the top of the hard alloy substrate is fixedly connected with a polycrystal diamond layer, the top of the polycrystal diamond layer is fixedly connected with four groups of protrusions one, the top of the polycrystal diamond layer is also fixedly connected with four groups of protrusions two, the top of the protrusions one and the protrusions two is provided with a cutting edge.

[0007] As a further improvement of the above scheme, the four groups of protrusions one and protrusions two are equidistantly arranged around the top center of the polycrystal diamond layer.

[0008] As a further improvement of the above-mentioned solution, the protrusion one and the protrusion two are arranged in a cross manner.

[0009] As a further improvement of the above-mentioned solution, the length of the protrusion one is consistent with the length of the protrusion two.

[0010] As a further improvement of the above-mentioned solution, the height of the protrusion one is greater than the height of the protrusion two.

[0011] As a further improvement of the above-mentioned solution, the angle between the adjacent two groups of protrusion one is consistent with the angle between the adjacent two groups of protrusion two and is 90°.

[0012] As a further improvement of the above-mentioned solution, the angle between the adjacent protrusion one and the protrusion two is 45°.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a protrusion one and protrusion two with cutting edges are arranged equidistantly in the circumference, and the height of the protrusion one is greater than the height of the protrusion two, so that when the protrusion one is excessively worn, the cutting edge on the protrusion two can automatically compensate to ensure the cutting ability of the rock, effectively reducing the replacement frequency of the polycrystalline diamond compact, not only saving the cost, but also ensuring the continuity of the polycrystalline diamond compact during use, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Fig. 2 It is the front view three-dimensional structure schematic diagram of the utility model;

[0017] Fig. 3 It is the overhead three-dimensional structure schematic diagram of the utility model.

[0018] Main symbol explanation:

[0019] 1, hard alloy base;2, polycrystalline diamond layer;3, protrusion one;4, protrusion two;5, cutting edge. DETAILED DESCRIPTION

[0020] Below, combining the drawings and specific implementation, the utility model is further described, and it is to be explained that under the premise of not conflicting, the following described each embodiment or each technical feature between can be arbitrarily combined to form new embodiment.

[0021] Example 1:

[0022] Please combine Figs. 1-3The polycrystal diamond compact of the embodiment comprises a hard alloy base 1, the top of the hard alloy base 1 is fixedly connected with a polycrystal diamond layer 2, the top of the polycrystal diamond layer 2 is fixedly connected with four groups of protrusions one 3, the top of the polycrystal diamond layer 2 is also fixedly connected with four groups of protrusions two 4, the top of the protrusions one 3 and the protrusions two 4 is provided with a cutting edge 5, the four groups of protrusions one 3 and the protrusions two 4 are equidistantly and circumferentially arranged around the top center of the polycrystal diamond layer 2, the protrusions one 3 and the protrusions two 4 are cross arranged, the height of the protrusions one 3 is greater than the height of the protrusions two 4, the included angle between the adjacent two groups of protrusions one 3 is consistent with the included angle between the adjacent two groups of protrusions two 4 and is 90°, and the included angle between the adjacent protrusions one 3 and the protrusions two 4 is 45°.

[0023] The implementation principle of the polycrystal diamond compact in the embodiment of the application is that when the polycrystal diamond compact is eaten into the rock, the cutting edges 5 on the equidistantly and circumferentially arranged protrusions one 3 can cut the rock to make it deeper, because the height of the protrusions one 3 is greater than the height of the protrusions two 4, when the protrusions one 3 are excessively worn, the cutting edges 5 on the protrusions two 4 can automatically compensate to ensure the cutting ability of the rock, effectively reducing the replacement frequency of the polycrystal diamond compact, saving the cost, and ensuring the continuity of the polycrystal diamond compact in use, and the practicability is high.

[0024] Embodiment 2

[0025] The embodiment further improves the length of the protrusions one 3 and the length of the protrusions two 4 on the basis of the embodiment 1, so that the cutting ranges of the protrusions two 4 and the protrusions one 3 are consistent.

[0026] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of the utility model protection, and any non-essential changes and replacements made by the person skilled in the art on the basis of the utility model all belong to the range of the utility model protection.

Claims

1. A polycrystalline diamond compact, characterized by, The utility model relates to a cutting tool, including hard alloy base (1), the top of hard alloy base (1) is fixedly connected with polycrystal diamond layer (2), the top of polycrystal diamond layer (2) is fixedly connected with four groups of convex one (3), the top of polycrystal diamond layer (2) still is fixedly connected with four groups of convex two (4), the top of convex one (3) and convex two (4) is provided with cutting edge (5), and the height size of convex one (3) is greater than the height size of convex two (4).

2. The polycrystalline diamond compact of claim 1, wherein, Four groups of convex one (3) and convex two (4) are arranged equidistantly around the top center of polycrystal diamond layer (2) circumferentially.

3. The polycrystalline diamond compact of claim 1, wherein, The convex one (3) and the convex two (4) are arranged in an intersecting manner.

4. The polycrystalline diamond compact of claim 1, wherein, The length of the convex one (3) is consistent with the length of the convex two (4).

5. The polycrystalline diamond compact of claim 1, wherein, The angle between adjacent two groups of the convex one (3) is consistent with the angle between adjacent two groups of the convex two (4) and is 90°.

6. The polycrystalline diamond compact of claim 1, wherein, The angle between adjacent the convex one (3) and the convex two (4) is 45°.

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