CN211422640U - Polycrystalline diamond composite cutting pick head - Google Patents
Polycrystalline diamond composite cutting pick head Download PDFInfo
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- CN211422640U CN211422640U CN201922121767.0U CN201922121767U CN211422640U CN 211422640 U CN211422640 U CN 211422640U CN 201922121767 U CN201922121767 U CN 201922121767U CN 211422640 U CN211422640 U CN 211422640U
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- polycrystalline diamond
- diamond layer
- pick head
- hard alloy
- alloy block
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Abstract
The utility model relates to the technical field of crushing and grinding tools, in particular to a polycrystalline diamond composite pick head, which comprises a base body and a polycrystalline diamond layer, wherein an installation part is arranged below the base body, a working part is arranged above the base body, the working part has an upward tip structure, and the polycrystalline diamond layer is arranged above the working part; the method is characterized in that: the hard alloy block integrated with the polycrystalline diamond layer is arranged in the middle of the polycrystalline diamond layer and is an upper hard alloy block, the polycrystalline diamond layer is exposed at the periphery of the upper hard alloy block, the upper hard alloy block and the polycrystalline diamond layer are synthesized together at high temperature and high pressure, and the polycrystalline diamond composite pick head has the advantages that a working part is not easy to break and is durable.
Description
Technical Field
The utility model belongs to the technical field of broken, grinding tool technique and specifically relates to a compound pick head of polycrystalline diamond is related to, it is installed on the pick.
Background
The polycrystalline diamond composite pick head is an easily-consumed article arranged on excavating equipment and mainly acts on rocks.
The polycrystalline diamond composite cutting pick head comprises a lower mounting part and an upper working part, the working part is of an upward tip structure, the mounting part is a substrate, and in order to avoid the defect that the traditional hard alloy cutting pick is quickly worn when used in strata with strong abrasive property such as hard rock, people compound a polycrystalline diamond layer on the working part in a high-temperature and high-pressure mode; although the polycrystalline diamond layer has the advantage of wear resistance, the polycrystalline diamond layer also has the defects of high brittleness and easy impact and breakage in the use process; in the prior art, the polycrystalline diamond layer completely covers the upper surface of the working part, so that the polycrystalline diamond composite pick head in the prior art has the defect that the polycrystalline diamond layer is easy to break, and the service life of the polycrystalline diamond composite pick head is influenced.
Disclosure of Invention
The utility model aims at the above shortcoming, provide a difficult broken, durable's polycrystalline diamond composite pick head of work portion.
The technical scheme of the utility model is realized like this, polycrystalline diamond composite pick head, including base member and polycrystalline diamond layer, be the installation department below the base member, the working part that is above the base member, the working part have tip structure up, polycrystalline diamond layer set up on the working part; the method is characterized in that: the middle of the polycrystalline diamond layer is also provided with an integrated hard alloy block which is an upper hard alloy block, and the polycrystalline diamond layer is exposed at the periphery of the upper hard alloy block.
Furthermore, the upper hard alloy block and the polycrystalline diamond layer are synthesized together at high temperature and high pressure.
Further, the substrate is cemented carbide.
Further, the polycrystalline diamond layer and the substrate are synthesized together at high temperature and high pressure.
Furthermore, the extending column is arranged on the base body, the upper hard alloy block is arranged on the extending column, and the base body, the extending column and the upper hard alloy block are of an integrated structure.
Furthermore, the height of the tip structure is 2-3 times of the height of the polycrystalline diamond layer.
The utility model has the advantages that: the polycrystalline diamond composite pick head has the advantages that the working part is not easy to break and durable.
Drawings
Fig. 1 is a schematic cross-sectional view of the cutting pick formed by the polycrystalline diamond compact cutting pick head.
Fig. 2 is a schematic cross-sectional view of one aspect of the present polycrystalline diamond compact cutting pick head.
Fig. 3 is a schematic cross-sectional view of another aspect of the present polycrystalline diamond compact pick head.
Fig. 4 is a schematic top view of the polycrystalline diamond compact pick head.
Wherein: 1. the cutting tool comprises an installation part 2, a working part 3, a polycrystalline diamond layer 4, an upper hard alloy block 5, an extension column 6, a cutting tooth 7 and a polycrystalline diamond composite cutting tooth head.
D-polycrystalline diamond layer height H-tip structure height.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, it is a schematic structural diagram of the cutting pick 6 formed by the polycrystalline diamond compact cutting pick head 7, that is, a schematic structural diagram of the polycrystalline diamond compact cutting pick head in use.
As shown in fig. 2, 3 and 4, the polycrystalline diamond composite pick head comprises a base body and a polycrystalline diamond layer, wherein a mounting part 1 is arranged below the base body, a working part 2 is arranged above the base body, the working part has an upward tip structure, and the polycrystalline diamond layer 3 is arranged above the working part 2; the method is characterized in that: the middle of the polycrystalline diamond layer is also provided with an integrated hard alloy block which is an upper hard alloy block 4, and the polycrystalline diamond layer is exposed at the periphery of the upper hard alloy block.
The utility model discloses set up like this, go up the carbide piece and can at first side effect in the rock, carry out the breakage to the rock, then carry out thinner grinding to the rock with polycrystalline diamond layer, can reduce polycrystalline diamond layer 3's breakage, realize the utility model discloses a purpose.
Furthermore, the upper hard alloy block and the polycrystalline diamond layer are synthesized together at high temperature and high pressure. So that they are better bonded and more durable.
Further, the substrate is cemented carbide. So that it is more durable.
Further, the polycrystalline diamond layer and the substrate are synthesized together at high temperature and high pressure.
Furthermore, the extending column 5 is arranged on the base body, the upper hard alloy block is arranged on the extending column, and the base body, the extending column and the upper hard alloy block are of an integrated structure. So that it is more durable.
Further, the height H of the tip structure is 2-3 times of the height D of the polycrystalline diamond layer. Thus, the design is more reasonable.
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The polycrystalline diamond composite pick head comprises a substrate and a polycrystalline diamond layer, wherein an installation part is arranged below the substrate, a working part is arranged above the substrate, the working part is provided with an upward pointed end structure, and the polycrystalline diamond layer is arranged above the working part; the method is characterized in that: the middle of the polycrystalline diamond layer is also provided with an integrated hard alloy block which is an upper hard alloy block, and the polycrystalline diamond layer is exposed at the periphery of the upper hard alloy block.
2. The polycrystalline diamond compact pick head of claim 1, wherein: the upper hard alloy block and the polycrystalline diamond layer are synthesized together at high temperature and high pressure.
3. A polycrystalline diamond compact pick head as claimed in claim 1 or claim 2, in which: the substrate is cemented carbide.
4. A polycrystalline diamond compact pick head as claimed in claim 1 or claim 2, in which: the polycrystalline diamond layer and the substrate are synthesized together at high temperature and high pressure.
5. A polycrystalline diamond compact pick head as claimed in claim 1 or claim 2, in which: the base body is provided with an extension column, the extension column is provided with an upper hard alloy block, and the base body, the extension column and the upper hard alloy block are of an integrated structure.
6. A polycrystalline diamond compact pick head as claimed in claim 1 or claim 2, in which: the height of the tip structure is 2-3 times of the height of the polycrystalline diamond layer.
7. The polycrystalline diamond compact pick head of claim 5, wherein: the height of the tip structure is 2-3 times of the height of the polycrystalline diamond layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922121767.0U CN211422640U (en) | 2019-12-02 | 2019-12-02 | Polycrystalline diamond composite cutting pick head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922121767.0U CN211422640U (en) | 2019-12-02 | 2019-12-02 | Polycrystalline diamond composite cutting pick head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211422640U true CN211422640U (en) | 2020-09-04 |
Family
ID=72288801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922121767.0U Active CN211422640U (en) | 2019-12-02 | 2019-12-02 | Polycrystalline diamond composite cutting pick head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211422640U (en) |
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2019
- 2019-12-02 CN CN201922121767.0U patent/CN211422640U/en active Active
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