CN219618636U - Convex spherical diamond compact - Google Patents
Convex spherical diamond compact Download PDFInfo
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- CN219618636U CN219618636U CN202222692087.6U CN202222692087U CN219618636U CN 219618636 U CN219618636 U CN 219618636U CN 202222692087 U CN202222692087 U CN 202222692087U CN 219618636 U CN219618636 U CN 219618636U
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- diamond composite
- spherical
- diamond
- sphere
- composite layer
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 61
- 239000010432 diamond Substances 0.000 title claims abstract description 61
- 239000002131 composite material Substances 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 17
- 239000011435 rock Substances 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a convex spherical diamond compact, comprising: a cylindrical cemented carbide base; the method is characterized in that: the middle part of the top end face of the hard alloy base is provided with a spherical boss, the top of the spherical boss is fixedly provided with a diamond composite layer with a spherical structure, and the bottom end face of the diamond composite layer is matched with the top end face of the spherical boss. The convex spherical diamond composite sheet designs the diamond composite layer into a structure with a plane and a sphere, integrates the advantages of the plane diamond composite sheet and the sphere diamond composite sheet, has the plane drilling efficiency and embodies the sphere impact toughness when cutting rock, and the combination of the plane diamond composite sheet and the sphere impact toughness not only improves the drilling efficiency, but also is not easy to collapse, improves the drilling efficiency, prolongs the service life of a drill bit, reduces the labor intensity of workers and saves the drilling cost.
Description
Technical Field
The utility model relates to a convex spherical diamond compact.
Background
Polycrystalline Diamond Compacts (PDCs) are produced by adhering thin layers of polycrystalline diamond to a cemented carbide substrate under high temperature and pressure conditions. The polycrystalline diamond compact has the hardness and wear resistance of diamond, the strength, the impact toughness and the good weldability of hard alloy, is an excellent cutting tool material, and is widely applied to the fields of petroleum, coal, geological drilling, machining and the like.
Currently, with the development of the drilling and exploitation industry and the increasing decrease of exploitation resources, the drilling depth is increased to adapt to more complex stratum environments; although the conventional planar diamond compact has high tooth feeding efficiency in a complex stratum environment, the conventional planar diamond compact has poor impact resistance and toughness and is easy to collapse. While the service life and impact toughness of the conventional spherical diamond compact are high, but the drilling efficiency is low, so that the conventional spherical diamond compact is not purchased, and the market needs to provide a polycrystalline diamond compact which can meet the requirements of complex stratum and drilling efficiency.
Accordingly, there is a need to provide a convex spherical diamond compact that addresses the shortcomings of the prior art.
Disclosure of Invention
The utility model overcomes the defects existing in the prior art and provides the convex spherical diamond compact.
In order to solve the technical problems, the utility model adopts the following technical scheme: a convex spherical diamond compact comprising:
a cylindrical cemented carbide base;
the method is characterized in that: the middle part of the top end face of the hard alloy base is provided with a spherical boss, the top of the spherical boss is fixedly provided with a diamond composite layer with a spherical structure, and the bottom end face of the diamond composite layer is matched with the top end face of the spherical boss.
In the structure, a circle of horizontal convex ring is arranged on the outer wall of the bottom end opening of the diamond composite layer, and a circle of annular horizontal plane matched with the horizontal convex ring is arranged at the position, close to the outer side edge, of the top end surface of the hard alloy base.
In the structure, the top end face of the spherical boss is provided with a plurality of hard alloy bulges, and the bottom end face of the diamond composite layer is provided with a plurality of grooves matched with the hard alloy bulges.
Compared with the prior art, the utility model has the beneficial effects that: the convex spherical diamond composite sheet designs the diamond composite layer into a structure with a plane and a sphere, integrates the advantages of the plane diamond composite sheet and the sphere diamond composite sheet, has the plane drilling efficiency and embodies the sphere impact toughness when cutting rock, and the combination of the plane diamond composite sheet and the sphere impact toughness not only improves the drilling efficiency, but also is not easy to collapse, improves the drilling efficiency, prolongs the service life of a drill bit, reduces the labor intensity of workers and saves the drilling cost.
Drawings
FIG. 1 is a schematic view of a convex spherical diamond compact according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a cemented carbide base in a convex spherical diamond compact according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a cemented carbide base in a convex spherical diamond compact according to an embodiment of the present utility model;
fig. 4 is a schematic view of a diamond compact layer structure of a convex spherical diamond compact according to an embodiment of the present utility model.
In the figure:
1. a hard alloy base; 2. spherical boss; 3. a diamond composite layer; 4. a horizontal convex ring; 5. an annular horizontal plane; 6. a hard alloy bulge; 7. a groove.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1-4, a convex spherical diamond compact comprises:
a cylindrical cemented carbide base 1;
the method is characterized in that: the middle part of the top end face of the hard alloy base 1 is provided with a spherical boss 2, a diamond composite layer 3 with a spherical structure is fixed at the top of the spherical boss 2, and the bottom end face of the diamond composite layer 3 is matched with the top end face of the spherical boss 2.
In the above structure, a circle of horizontal convex ring 4 is arranged on the outer wall of the bottom end opening of the diamond composite layer 3, and a circle of annular horizontal plane 5 matched with the horizontal convex ring 4 is arranged at the position, close to the outer side edge, of the top end surface of the hard alloy base 1.
In the above structure, the top end surface of the spherical boss 2 is provided with a plurality of hard alloy bulges 6, and the bottom end surface of the diamond composite layer 3 is provided with a plurality of grooves 7 matched with the hard alloy bulges 6.
The convex spherical diamond composite sheet designs a diamond composite layer into a structure with a plane (a horizontal convex ring) and a sphere (a diamond composite layer with a spherical structure), wherein the diamond composite layer is generated by polycrystalline diamond micropowder under high temperature and high pressure, and the diamond composite layer is adhered and bonded on a hard alloy base under the high temperature and high pressure conditions. The convex spherical diamond compact integrates the advantages of the plane diamond compact and the spherical diamond compact, so that the plane drilling efficiency and the spherical impact toughness are realized when the rock is cut, the drilling efficiency is improved, the edge breakage is not easy to occur due to the combination of the plane diamond compact and the spherical impact toughness, the drilling efficiency is improved, the service life of a drill bit is prolonged, the labor intensity of workers is reduced, and the drilling cost is saved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (3)
1. A convex spherical diamond compact comprising:
a cylindrical cemented carbide base (1);
the method is characterized in that: the middle part of carbide base (1) terminal surface be equipped with sphere boss (2) the top of sphere boss (2) be fixed with sphere structure's diamond composite bed (3), the bottom terminal surface of diamond composite bed (3) with the top face of sphere boss (2) agree with mutually.
2. A convex spherical diamond compact according to claim 1, wherein: the diamond composite layer (3) is characterized in that a circle of horizontal convex ring (4) is arranged on the outer wall of the bottom end opening of the diamond composite layer (3), and a circle of annular horizontal plane (5) matched with the horizontal convex ring (4) is arranged at the position, close to the outer side edge, of the top end surface of the hard alloy base (1).
3. A convex spherical diamond compact according to claim 1, wherein: the top end face of the spherical boss (2) is provided with a plurality of hard alloy bulges (6), and the bottom end face of the diamond composite layer (3) is provided with a plurality of grooves (7) matched with the hard alloy bulges (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222692087.6U CN219618636U (en) | 2022-10-13 | 2022-10-13 | Convex spherical diamond compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222692087.6U CN219618636U (en) | 2022-10-13 | 2022-10-13 | Convex spherical diamond compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219618636U true CN219618636U (en) | 2023-09-01 |
Family
ID=87792732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222692087.6U Active CN219618636U (en) | 2022-10-13 | 2022-10-13 | Convex spherical diamond compact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219618636U (en) |
-
2022
- 2022-10-13 CN CN202222692087.6U patent/CN219618636U/en active Active
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