CN213392000U - Linear type corrugated tooth diamond compact - Google Patents
Linear type corrugated tooth diamond compact Download PDFInfo
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- CN213392000U CN213392000U CN202022463019.3U CN202022463019U CN213392000U CN 213392000 U CN213392000 U CN 213392000U CN 202022463019 U CN202022463019 U CN 202022463019U CN 213392000 U CN213392000 U CN 213392000U
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- polycrystalline diamond
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Abstract
The utility model relates to a linear type ripple tooth diamond compact piece, including carbide basement and polycrystalline diamond layer, the carbide basement is cylindrical, and its upper end sintering has polycrystalline diamond layer, its characterized in that: the polycrystalline diamond layer consists of a top plane, a plurality of ridge-shaped bulges arranged on the top plane and a side cylindrical surface; many ridge-shaped arch are the linear type, and its crest line is parallel to each other and is located same horizontal plane, and the root meets, and the intersection line of its side and the side cylinder of polycrystalline diamond layer has constituted corrugated cutting edge, ridge-shaped arch and side cylinder rounding off connect. The utility model discloses simple structure, reasonable in design, sintered carbide basement and polycrystalline diamond layer combine firmly under the high temperature high pressure, have improved shock resistance, and polycrystalline diamond layer has a plurality of cutting edges and cutting face simultaneously, has better shock resistance and chip removal performance, has improved and has crept into efficiency.
Description
Technical Field
The utility model relates to a linear type ripple tooth diamond compact belongs to diamond compact piece technical field.
Background
The diamond compact consists of two parts, namely a diamond layer and a hard alloy substrate. The diamond powder is prepared by sintering fine diamond powder and a hard alloy matrix under the conditions of ultrahigh pressure and high temperature (5-7 ten thousand atmospheric pressure, 1400 ℃ C. and 1600 ℃ C.). The diamond composite sheet is mainly suitable for diamond composite sheet drill bits (PDC drill bits) which are used for drilling soft to medium-hardness and complex geological layers and is mainly used for petroleum and natural gas exploitation. The diamond grains in the polycrystalline diamond layer have complete D-D bond combination microscopic characteristics, so that the diamond layer has high strength, high hardness and high wear resistance, and simultaneously has good self-sharpening performance, and a new cutting surface can be continuously exposed in the drilling and grinding process, so that the effective cutting effect on rocks is kept. The structure of the existing diamond compact is not optimized enough, the cutting effect is not ideal enough, and meanwhile, the connection of a diamond compact drill bit is not firm enough.
SUMMERY OF THE UTILITY MODEL
To the above problem, the to-be-solved technical problem of the utility model is to provide a linear type ripple profile of tooth diamond compact piece has a plurality of cutting edges and cutting face, and intensity is high, and the wearability is good, and cutting performance is good.
The utility model discloses a linear type ripple tooth diamond compact piece, including carbide basement and polycrystalline diamond layer, the carbide basement is cylindrical, and its upper end sintering has polycrystalline diamond layer, its characterized in that: the polycrystalline diamond layer consists of a top plane, a plurality of ridge-shaped bulges arranged on the top plane and a side cylindrical surface; many ridge-shaped arch are the linear type, and its crest line is parallel to each other and is located same horizontal plane, and the root meets, and the intersection line of its side and the side cylinder of polycrystalline diamond layer has constituted corrugated cutting edge, ridge-shaped arch and side cylinder rounding off connect.
Furthermore, the included angle between the side surface of the ridge-shaped bulge and the plane of the top part ranges from 39 degrees to 42 degrees.
Furthermore, the number of the ridge-shaped bulges is 3, and the central line of the ridge-shaped bulge positioned in the middle passes through the circle center of the cross section of the hard alloy substrate.
Furthermore, the cutting edge is arc-shaped, and the curvature radius of the cutting edge is 0.27-0.33 mm.
The utility model has the advantages that: simple structure, reasonable in design, the sintered carbide basement and polycrystalline diamond layer combine more firmly under the high temperature high pressure, have improved diamond compact's impact strength, and polycrystalline diamond layer has a plurality of cutting edges and cutting face simultaneously, has better shock resistance and chip removal performance, has improved and has crept into efficiency.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention.
Fig. 2 is a schematic front view of the preferred embodiment of the present invention.
Fig. 3 is a schematic top view of the preferred embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
The utility model provides a linear type ripple tooth diamond compact as shown in fig. 1 to 3, includes carbide substrate 2 and polycrystalline diamond layer 1, carbide substrate 2 is cylindrical, and its upper end has sintered polycrystalline diamond layer 1, its characterized in that: the polycrystalline diamond layer 1 is composed of a top plane 101, a plurality of ridge-shaped protrusions 102 arranged on the top plane, and a side cylindrical surface 103; the plurality of ridge-shaped protrusions 102 are linear, the top lines thereof are parallel to each other and are located in the same horizontal plane, the roots thereof are connected, the side surfaces thereof intersect with the side cylindrical surface 103 of the polycrystalline diamond layer 1 to form corrugated cutting edges 104, and the ridge-shaped protrusions 102 are smoothly connected with the side cylindrical surface 103.
Further, the side surface of the ridge-shaped protrusion 102 forms an angle with the top plane 101 within the range of 40.78 °.
Further, the number of the ridge-shaped protrusions 102 is 3, and the center line of the ridge-shaped protrusion 102 located in the middle passes through the center of the cross section of the cemented carbide substrate 2.
Further, the cutting edge 104 is circular arc-shaped, and the curvature radius thereof is 0.3 mm.
The utility model discloses a diamond compact piece, when using, diamond compact piece cutting gets into the rock layer, and the cutting edge 104 of the ripple type on polycrystalline diamond layer 1 at first contacts with the stratum rock, participates in the cutting, and the dispersion cutting stress that ripple type cutting edge can be fine, and the protruding 102 side of ridge shape plays good drainage chip removal effect, further improves and creeps into efficiency. As the drilling depth increases, the side cylindrical surface 103 contacts with the rock formation and participates in the cutting process, the new surface continuously participates in the cutting process when the two cutting edges 104 are worn, and the self-sharpening performance is good, so that the drilling efficiency is improved. Many cutting edges and a plurality of cutting face participate in the cutting simultaneously, and structural axial symmetry has improved the intensity of diamond compact piece, avoids the inefficacy that arouses because of stress concentration in the cutting process, increase of service life.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (4)
1. The utility model provides a linear type ripple tooth diamond compact, includes carbide substrate (2) and polycrystalline diamond layer (1), carbide substrate (2) are cylindrical, and its upper end has sintered polycrystalline diamond layer (1), its characterized in that: the polycrystalline diamond layer (1) is composed of a top plane (101), a plurality of ridge-shaped protrusions (102) arranged on the top plane and a side cylindrical surface (103); the plurality of ridge-shaped protrusions (102) are linear, the top lines of the ridge-shaped protrusions are parallel to each other and located in the same horizontal plane, the roots of the ridge-shaped protrusions are connected, the side faces of the ridge-shaped protrusions and the intersecting line of the side cylindrical surface (103) of the polycrystalline diamond layer (1) form corrugated cutting edges (104), and the ridge-shaped protrusions (102) are smoothly connected with the side cylindrical surface (103).
2. The linear corrugated toothed diamond compact of claim 1, wherein: the included angle between the side surface of the ridge-shaped bulge (102) and the top plane (101) ranges from 39 degrees to 42 degrees.
3. The linear corrugated toothed diamond compact of claim 1, wherein: the number of the ridge-shaped bulges (102) is 3, and the central line of the ridge-shaped bulge (102) positioned in the middle passes through the circle center of the cross section of the hard alloy substrate (2).
4. The linear corrugated toothed diamond compact of claim 1, wherein: the cutting edge (104) is arc-shaped, and the curvature radius of the cutting edge is 0.27-0.33 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022463019.3U CN213392000U (en) | 2020-10-30 | 2020-10-30 | Linear type corrugated tooth diamond compact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022463019.3U CN213392000U (en) | 2020-10-30 | 2020-10-30 | Linear type corrugated tooth diamond compact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213392000U true CN213392000U (en) | 2021-06-08 |
Family
ID=76191846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022463019.3U Active CN213392000U (en) | 2020-10-30 | 2020-10-30 | Linear type corrugated tooth diamond compact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213392000U (en) |
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2020
- 2020-10-30 CN CN202022463019.3U patent/CN213392000U/en active Active
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