CN211448526U - Drill bit for petroleum drilling - Google Patents
Drill bit for petroleum drilling Download PDFInfo
- Publication number
- CN211448526U CN211448526U CN201922250712.XU CN201922250712U CN211448526U CN 211448526 U CN211448526 U CN 211448526U CN 201922250712 U CN201922250712 U CN 201922250712U CN 211448526 U CN211448526 U CN 211448526U
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- CN
- China
- Prior art keywords
- drill bit
- bit body
- connecting block
- fixed
- wall
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- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 22
- 239000003208 petroleum Substances 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000036346 tooth eruption Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 9
- 238000010168 coupling process Methods 0.000 abstract description 9
- 238000005859 coupling reaction Methods 0.000 abstract description 9
- 230000006978 adaptation Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a drill bit for oil drilling, including the drill bit body, drill bit body top is fixed with coupling mechanism, and coupling mechanism includes the connecting block, and the connecting block top is fixed with the connecting rod, and connecting block bottom central point puts and is fixed with the hexagonal piece, and drill bit body top central point puts and opens the hexagonal groove that has with hexagonal piece specification adaptation, connecting block bottom outer wall is close to the edge and is fixed with the spacing post that a plurality of rings distribute, and drill bit body top outer wall is opened the spacing groove that has with spacing post specification adaptation, connecting block top outer wall is close to the edge and is opened there is the seal groove corresponding with spacing post, and the seal groove is pegged graft with corresponding spacing post screw thread and is had same connecting bolt, and connecting bolt bottom screw is pegged graft and has. The utility model discloses can be in the same place coupling mechanism and drill bit body fixed connection, increase the installation intensity between drill bit body and the connecting block, the dismouting of being convenient for.
Description
Technical Field
The utility model relates to a drill bit technical field especially relates to a drill bit for oil drilling.
Background
At present, a plurality of drill bits are used in petroleum and geological drilling sites, and are divided into a steel body and a matrix due to different manufacturing processes and used materials, but most of cutting teeth used by the drill bits are PDC composite sheets, namely the steel body PDC drill bit and the matrix PDC drill bit. The existing PDC drill bit has the advantages of high mechanical drilling speed, high footage, less drilling pressure, high adaptable drilling speed and the like in adaptation to stratum, is widely applied to petroleum and geological drilling, and brings great economic and social benefits to petroleum enterprises.
The existing drill bit has some defects in the using process, for example, the drill bit needs to be replaced after being worn, and the existing drill bit is inconvenient to disassemble and assemble, so that the using effect is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a drill bit for petroleum drilling.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a drill bit for oil drilling, includes the drill bit body, drill bit body top is fixed with coupling mechanism, and coupling mechanism includes the connecting block, and the connecting block top is fixed with the connecting rod, and connecting block bottom central point puts and is fixed with the hexagonal piece, and drill bit body top central point puts and opens the hexagonal groove that has with hexagonal piece specification adaptation, connecting block bottom outer wall is close to the edge and is fixed with the spacing post that a plurality of annular distribute, and drill bit body top outer wall is opened the spacing groove that has with spacing post specification adaptation, connecting block top outer wall is close to the edge and is opened there is the seal groove corresponding with spacing post, and the seal groove is pegged graft with corresponding spacing post screw thread and is had same connecting bolt, and connecting bolt bottom screw is.
Furthermore, an annular groove is formed in the outer wall of the bottom of the connecting block, close to the edge, and a sealing ring is embedded in the annular groove.
Furthermore, the rubber buffer is inserted in the sealing groove, and an annular bulge is arranged at the edge of the top end of the rubber buffer.
Furthermore, a conical inclined plane is arranged at the bottom end of the drill bit body, and a plurality of spiral blades distributed in an annular mode are fixed on the conical inclined plane.
Furthermore, a plurality of cutting teeth which are distributed in an annular mode are fixed on the outer wall of the bottom of the drill bit body, and cutting inclined planes are formed in the cutting teeth.
Furthermore, the connection mode between the cutting teeth and the drill bit body is replaced by bolt connection, and the bottom of the drill bit body is provided with a plug-in groove which is in plug-in fit with the cutting teeth.
The utility model has the advantages that:
1. through connecting bolt's setting can be in the same place coupling mechanism and drill bit body fixed connection, spacing post and hexagonal piece can be pegged graft and form spacingly in this internal formation of drill bit, increase the installation intensity between drill bit body and the connecting block, the dismouting of being convenient for.
2. The sealing performance of the joint of the connecting block and the drill bit body can be improved through the arrangement of the sealing ring, dust, water vapor and other liquid objects are prevented from entering the joint, the rubber plug can seal the sealing groove, the connecting bolt is subjected to closed protection work, and the service durability of the connecting part of the device is improved.
3. Carry out fixed connection between cutting tooth and the drill bit body through bolted connection mode, only need change the maintenance to it after the cutting tooth wearing and tearing are excessive, reduce and change cost of maintenance.
Drawings
FIG. 1 is a schematic partial cross-sectional perspective view of a drill bit for oil drilling according to an embodiment 1 of the present invention;
FIG. 2 is a schematic view of a cutting tooth of an embodiment 1 of a drill bit for oil drilling according to the present invention;
fig. 3 is a schematic view of a cutting tooth mounting structure of an embodiment 2 of the drill bit for oil drilling according to the present invention.
In the figure: the drill bit comprises a drill bit body 1, a conical inclined plane 2, a helical blade 3, a cutting tooth 4, a connecting block 5, a connecting rod 6, a sealing groove 7, a rubber plug 8, a limiting column 9, a sealing ring 10, a connecting bolt 11, a hexagonal block 12 and a cutting inclined plane 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Example 1
Referring to fig. 1 and 2, a drill bit for oil drilling, including drill bit body 1, 1 top of drill bit body is fixed with coupling mechanism, coupling mechanism includes connecting block 5, 5 tops of connecting block are fixed with connecting rod 6, 5 bottom central point of connecting block put and are fixed with hexagonal piece 12, and 1 top central point of drill bit body puts and opens the hexagonal groove that has 12 specification adaptations with hexagonal piece, 5 bottom outer walls of connecting block are close to the edge and are fixed with the spacing post 9 of a plurality of annular distributions, 1 top outer walls of drill bit body is opened the spacing groove that has 9 specification adaptations with spacing post, 5 top outer walls of connecting block are close to the edge and are opened there is the seal groove 7 corresponding with spacing post 9, seal groove 7 is pegged graft with corresponding spacing post 9 screw thread and is had same connecting bolt 11, connecting bolt 11 bottom screw thread is pegged graft and.
The outer wall of 5 bottoms of connecting blocks is close to the edge and has opened the ring channel, and the ring channel is embedded to have connect sealing washer 10, and it has rubber buffer 8 to peg graft in the 7 seal grooves, and 8 top edges of rubber buffer are equipped with annular protrusion, and 1 bottom of drill bit body is equipped with circular cone inclined plane 2, is fixed with the helical blade 3 that a plurality of annular distribute on the circular cone inclined plane 2, and 1 bottom outer wall of drill bit body is fixed with the cutting teeth 4 that a plurality of annular distribute, and it has cutting inclined plane 13 to open on.
The working principle of the embodiment is as follows: connecting bolt 11 can be in the same place coupling mechanism and drill bit body 1 fixed connection, spacing post 9 and hexagonal piece 12 can be pegged graft and form spacingly in drill bit body 1, increase the installation intensity between drill bit body 1 and the connecting block 5, the dismouting of being convenient for, sealing washer 10 can increase the leakproofness of connecting block 5 and the junction of drill bit body 1, avoid getting into dust and steam and other liquid object, rubber buffer 8 can seal up seal groove 7 in addition, carry out closed protection work to connecting bolt 11, the durability in use of improvement device adapting unit.
Example 2
Referring to fig. 3, the drill bit for oil drilling is different from embodiment 1 in that the connection mode between the cutting teeth 4 and the drill bit body 1 is replaced by bolt connection, and the bottom of the drill bit body 1 is provided with insertion grooves which are in insertion fit with the cutting teeth 4.
The working principle of the embodiment is as follows: carry out fixed connection between 4 with the cutting teeth and the drill bit body 1 through bolted connection mode, only need change the maintenance to it after 4 wearing and tearing of cutting teeth are excessive, reduce and change cost of maintenance.
In the description of this patent, it is to be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "one side," "top," "inner," "front," "center," "two ends," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In this patent, unless expressly stated or limited otherwise, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, or they may be connected internally or in an interactive relationship with each other, and unless otherwise specifically limited, the specific meaning of the above terms in this patent will be understood by those skilled in the art according to the specific circumstances.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A drill bit for petroleum drilling comprises a drill bit body (1) and is characterized in that a connecting mechanism is fixed at the top end of the drill bit body (1) and comprises a connecting block (5), a connecting rod (6) is fixed at the top of the connecting block (5), a hexagonal block (12) is fixed at the bottom center position of the connecting block (5), a hexagonal groove matched with the hexagonal block (12) in specification is formed at the top center position of the drill bit body (1), a plurality of annularly distributed limiting columns (9) are fixed at the outer wall of the bottom of the connecting block (5) close to the edge, a limiting groove matched with the limiting columns (9) in specification is formed in the outer wall of the top of the drill bit body (1), a sealing groove (7) corresponding to the limiting columns (9) is formed in the outer wall of the top of the connecting block (5) close to the edge, the same connecting bolt (11) is inserted in the sealing groove (7) and the, the bottom end of the connecting bolt (11) is inserted with the drill bit body (1) in a threaded manner.
2. Drill bit for oil drilling according to claim 1, characterized in that the outer wall of the bottom of the connecting piece (5) is provided with an annular groove near the edge, and a sealing ring (10) is embedded in the annular groove.
3. The drill bit for petroleum drilling as claimed in claim 2, characterized in that a rubber plug (8) is inserted into the sealing groove (7), and an annular bulge is arranged at the edge of the top end of the rubber plug (8).
4. The drill bit for petroleum drilling according to claim 1, characterized in that the bottom end of the drill bit body (1) is provided with a conical bevel (2), and a plurality of spiral blades (3) distributed in a ring shape are fixed on the conical bevel (2).
5. The drill bit for petroleum drilling according to any one of claims 1 to 4, wherein a plurality of cutting teeth (4) are fixed on the outer wall of the bottom of the drill bit body (1) in an annular distribution, and cutting inclined surfaces (13) are formed on the cutting teeth (4).
6. The drill bit for petroleum drilling as claimed in claim 5, characterized in that the connection between the cutting teeth (4) and the drill bit body (1) is replaced by a bolt connection, and the bottom of the drill bit body (1) is provided with a plug groove which forms a plug fit with the cutting teeth (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250712.XU CN211448526U (en) | 2019-12-16 | 2019-12-16 | Drill bit for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922250712.XU CN211448526U (en) | 2019-12-16 | 2019-12-16 | Drill bit for petroleum drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448526U true CN211448526U (en) | 2020-09-08 |
Family
ID=72312685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922250712.XU Expired - Fee Related CN211448526U (en) | 2019-12-16 | 2019-12-16 | Drill bit for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448526U (en) |
-
2019
- 2019-12-16 CN CN201922250712.XU patent/CN211448526U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |