CN220769449U - Integral polycrystalline diamond cutting pick - Google Patents
Integral polycrystalline diamond cutting pick Download PDFInfo
- Publication number
- CN220769449U CN220769449U CN202322168983.7U CN202322168983U CN220769449U CN 220769449 U CN220769449 U CN 220769449U CN 202322168983 U CN202322168983 U CN 202322168983U CN 220769449 U CN220769449 U CN 220769449U
- Authority
- CN
- China
- Prior art keywords
- pick
- polycrystalline diamond
- tooth
- cutting
- tooth body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 34
- 239000010432 diamond Substances 0.000 title claims abstract description 34
- 235000010585 Ammi visnaga Nutrition 0.000 claims abstract description 36
- 244000153158 Ammi visnaga Species 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- Food-Manufacturing Devices (AREA)
Abstract
The utility model relates to an integral polycrystalline diamond cutting pick which comprises a cutting pick handle and a cutting pick tooth body made of polycrystalline diamond, wherein the upper end of the cutting pick tooth body is provided with a sharp tooth part made of polycrystalline diamond, the cutting pick tooth body and the sharp tooth part are integrally formed, the sharp tooth part is used as a tooth head of the cutting pick, and the lower end of the cutting pick tooth body and the cutting pick handle are fixedly connected into a whole; the pick tooth body and the pick head on the pick upper portion are made of polycrystalline diamond materials, so that the abrasion resistance of the pick upper portion is the same as that of the pick lower portion, the problem that the abrasion speed of the pick tooth body is faster than that of the pick head in the use process is solved, the problem that the pick head made of the polycrystalline diamond materials falls off under the condition that the pick head is not severely abraded can be effectively avoided, and the service life of the pick is prolonged.
Description
Technical Field
The utility model relates to the field of diamond cutting picks, in particular to an integral polycrystalline diamond cutting pick.
Background
A pick is a tool for cutting and drilling by a mining machine. Polycrystalline diamond picks in the pick category have good wear resistance and service life and are therefore widely used. The existing polycrystalline diamond cutting pick consists of a hard alloy matrix and a diamond cutter head arranged at the tip of the hard diamond matrix, is a combined cutting pick structure, and can be seen from an utility model patent of a surface treatment process (application number 2015109656449) of the cutting pick, wherein a cutting pick body tooth head 1 and a cutter head 2 in the patent are combined cutting pick structures, and can be seen from an utility model patent of a milling mechanical cutter (application number 2009101352350), and the cutter head 1 and the cutter body 2 in the patent are combined cutting pick structures; in the use process of the cutting pick with the structure, the abrasion speed of the pick body is faster than that of the cutter head, so that the phenomenon that the polycrystalline diamond cutting pick falls off too early under the condition of no damage can be caused, and the service life of the cutting pick is not high.
Disclosure of Invention
In order to solve the problems, the utility model provides an integral polycrystalline diamond cutting pick.
The technical scheme of the utility model is as follows: the utility model provides an integral polycrystalline diamond cutting pick, includes columniform pick handle, the pick tooth body of polycrystalline diamond material, and the upper end of pick tooth body is equipped with the sharp tooth portion of polycrystalline diamond material, pick tooth body and sharp tooth portion integrated into one piece, pick tooth body and tooth head structure as an organic whole, sharp tooth portion as the tooth head of pick, the lower extreme and the pick handle fixed connection of pick tooth body are as an organic whole.
Preferably, the pick body and the pick head are both conical.
Preferably, the taper of the tooth head is larger than that of the cutting tooth body, and the specific taper can be specifically arranged according to the drilling effect.
Preferably, the upper part of the cutting pick handle is coaxially provided with a circular supporting seat, the lower end of the cutting pick body is outwards and uniformly expanded to form a circular base, the diameters of the circular supporting seat and the circular base are the same, and the circular base and the circular supporting seat are fixedly connected into a whole.
Preferably, a plurality of thread step holes are uniformly distributed on the edge part of the circular support base along the circumferential direction, threaded holes are correspondingly formed in the bottom surface of the pick tooth body, the sizes of the thread step holes and the threaded holes are matched and the positions of the thread step holes and the threaded holes correspond, and a screw is arranged between the thread step holes and the threaded holes to fixedly connect the pick tooth body and the pick handle into a whole.
Preferably, the circular supporting seat and the circular base are fixedly connected into a whole through welding, and particularly can be welded through brazing.
Preferably, the pick handle is made of hard alloy.
The beneficial technical effects of the utility model are as follows: the pick tooth body and the pick head on the pick upper portion are made of polycrystalline diamond materials and are integrally formed, so that the abrasion resistance of the pick upper portion is the same as that of the pick lower portion, the problem that the abrasion speed of the pick tooth body is faster than that of the pick head in the use process is solved, the problem that the pick head made of polycrystalline diamond materials falls off under the condition that the pick head is not severely abraded can be effectively avoided, and the service life of the pick is prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1 (the schematic view being of a welded configuration);
fig. 3 is a schematic view of the structure of the screw connection of the present utility model.
In the figure, 11.pick handle, 111.circular support base, 12.pick body, 121.pick head, 122.circular base, 131.threaded stepped hole, 132.threaded hole, 133.screw.
Detailed Description
Referring to fig. 1-2 of the specification, an integral polycrystalline diamond cutting pick comprises a cutting pick handle 11 and a cutting pick tooth body 12 made of polycrystalline diamond, wherein the cutting pick handle 11 is cylindrical, an annular limiting groove is formed in the lower portion of the cutting pick handle 11, a sharp tooth portion made of polycrystalline diamond is arranged at the upper end of the cutting pick tooth body 12, the cutting pick tooth body 12 and the sharp tooth portion are integrally formed, the integral design enables the abrasion resistance of the upper portion and the abrasion resistance of the lower portion of the cutting pick to be the same, the difference of abrasion speeds between the cutting pick tooth body 12 and a pick tooth head 121 in the use process is small, the sharp tooth portion serves as the pick tooth head 121 of the cutting pick, the lower end of the cutting pick tooth body 12 and the cutting pick tooth handle 11 are integrally connected through welding, and the material of the cutting pick handle 11 is hard alloy.
The pick body 12 and the pick head 121 are conical, the taper of the pick head 121 is larger than that of the pick body 12, the taper difference of the pick body and the pick head reduces the length of the tip of the pick, so that the whole pick is thicker, higher in impact strength and longer in service life.
The upper part of pick handle 11 is coaxial to be equipped with circular support base 111, and the outward even extension of the lower extreme of pick tooth body 12 forms circular base 122, and circular base 122 and circular support base 111 fixed connection are as an organic wholely, have improved the area of contact between pick handle 11, the pick tooth body 12 through circular support base 111 and circular base 122, do benefit to the joint strength between improvement pick handle 11 and the pick tooth body 12, make whole pick more firm.
The pick tooth body 12 and the tooth head 121 on the upper portion of the pick are made of polycrystalline diamond materials, and are integrally formed, so that the abrasion difference between the upper portion and the lower portion of the pick is greatly reduced, the abrasion speed of the pick tooth body 12 and the abrasion speed of the tooth head 121 are very small in use, the problem that the pick becomes invalid due to the fact that the tooth head 121 made of polycrystalline diamond materials falls off very quickly can be effectively avoided, and the service life of the pick is longer.
Referring to fig. 1 and 3 of the specification, in the first embodiment, a plurality of threaded stepped holes 131 are uniformly distributed along the circumferential direction on the edge of a circular support base 111, threaded holes 132 are correspondingly formed in the bottom surface of a cutting pick tooth body 12, and screws 133 are installed between the threaded stepped holes 131 and the threaded holes 132 to fixedly connect the cutting pick tooth body 12 and a cutting pick handle 11 into a whole; the cutting pick handle 11 does not bear the cutting and drilling tasks, the abrasion loss is small, the cutting pick body 12 with serious abrasion can be conveniently detached through the screw 133, the cutting pick handle 11 is reserved for reuse, the consumption of the cutting pick handle 11 can be saved, and the cost is reduced.
Claims (7)
1. An integral polycrystalline diamond pick, characterized by:
including pick handle, the pick tooth body of polycrystalline diamond material, the upper end of pick tooth body is equipped with the sharp tooth portion of polycrystalline diamond material, pick tooth body and sharp tooth portion integrated into one piece, sharp tooth portion as the tooth head of pick, the lower extreme and the pick handle fixed connection of pick tooth body are as an organic whole.
2. An integral polycrystalline diamond pick according to claim 1, wherein: the pick body and the pick head are both conical.
3. An integral polycrystalline diamond pick according to claim 2, wherein: the taper of the tooth head is larger than that of the cutting tooth body of the cutting tooth.
4. An integral polycrystalline diamond pick according to claim 1, wherein:
the upper part of the cutting pick handle is coaxially provided with a circular supporting seat, the lower end of the cutting pick body is outwards and uniformly expanded to form a circular base, and the circular base and the circular supporting seat are fixedly connected into a whole.
5. An integral polycrystalline diamond pick according to claim 4, wherein: the edge of the circular support seat is uniformly provided with a plurality of threaded step holes along the circumferential direction, the bottom surface of the pick tooth body is correspondingly provided with threaded holes, and screws are arranged between the threaded step holes and the threaded holes to fixedly connect the pick tooth body and the pick handle into a whole.
6. An integral polycrystalline diamond pick according to claim 4, wherein: the round supporting seat and the round base are fixedly connected into a whole through welding.
7. An integral polycrystalline diamond pick according to claim 1, wherein: the cutting pick handle is made of hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168983.7U CN220769449U (en) | 2023-08-14 | 2023-08-14 | Integral polycrystalline diamond cutting pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322168983.7U CN220769449U (en) | 2023-08-14 | 2023-08-14 | Integral polycrystalline diamond cutting pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769449U true CN220769449U (en) | 2024-04-12 |
Family
ID=90618157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322168983.7U Active CN220769449U (en) | 2023-08-14 | 2023-08-14 | Integral polycrystalline diamond cutting pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769449U (en) |
-
2023
- 2023-08-14 CN CN202322168983.7U patent/CN220769449U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |