CN212154663U - Wear-resisting anticorrosive PDC drill bit - Google Patents
Wear-resisting anticorrosive PDC drill bit Download PDFInfo
- Publication number
- CN212154663U CN212154663U CN202020920207.1U CN202020920207U CN212154663U CN 212154663 U CN212154663 U CN 212154663U CN 202020920207 U CN202020920207 U CN 202020920207U CN 212154663 U CN212154663 U CN 212154663U
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- CN
- China
- Prior art keywords
- drill bit
- wear
- cover
- installation piece
- main shaft
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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
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000005260 corrosion Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a wear-resisting anticorrosive PDC drill bit, including the main shaft body and installation piece, the top fixed connection of the main shaft body and installation piece, be equipped with communicating opening in the main shaft body and the installation piece, it has cup jointed the thread bush to rotate on the outer wall of the main shaft body, the fixed cover in bottom of thread bush has been met and has been supported the cover, support a plurality of sliders of bottom fixedly connected with of cover, the top of installation piece is equipped with the annular slide rail that corresponds with the slider, two fixture blocks that fixedly connected with symmetry set up on the outer wall of installation piece. The utility model discloses in through wear-resisting and anticorrosion structure's setting, make the wear-resisting and anticorrosion ability of drill bit obtain promoting to the result of use of drill bit has been promoted.
Description
Technical Field
The utility model relates to a PDC drill bit technical field especially relates to a wear-resisting anticorrosive PDC drill bit.
Background
Since the 20 th century and 80 th century, the PDC drill bit has high mechanical drilling speed and long service life in homogeneous sand-shale formations with soft to medium hardness due to the unique shearing and rock breaking mode, has become the main drill bit for oil and gas drilling, and meanwhile, along with the continuous development of the drill bit design technology, the diamond superhard material technology and the manufacturing and processing technology, the application range of the PDC drill bit is wider and wider.
But the composition structure of current PDC drill bit is comparatively simple, and the wear-resisting and the corrosion resisting ability of drill bit are relatively poor to influence the result of use of drill bit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the PDC drill bit is simple in structure, wear-resisting and relatively poor in corrosion resistance of the drill bit, and providing a wear-resisting and anti-corrosion PDC drill bit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a wear-resisting anticorrosive PDC drill bit, includes the main shaft body and installation piece, the main shaft body and the top fixed connection of installation piece, be equipped with communicating opening in the main shaft body and the installation piece, it has cup jointed the thread bush to rotate on the outer wall of the main shaft body, the fixed cover in bottom of thread bush has been connect and has been supported the cover, support a plurality of sliders of bottom fixedly connected with of cover, the top of installation piece is equipped with the annular slide rail that corresponds with the slider, two fixture blocks that fixedly connected with symmetry set up on the outer wall of installation piece, it is equipped with the kelly to slide to insert on the fixture block, the bottom of supporting the cover encircles and is equipped with a plurality of draw-in grooves that correspond with the kelly, the fixed cover has been connected the.
Preferably, the inner bottom of the annular slide rail is connected with a plurality of steel balls in a sliding manner, and the edges of the steel balls are in contact with the slide block.
Preferably, a clamping sleeve is fixedly sleeved at one end, close to the supporting sleeve, of the clamping rod, a pull rod is fixedly connected at one end, far away from the clamping sleeve, of the clamping rod, a spring is sleeved on the clamping rod, and two ends of the spring are fixedly connected with the clamping sleeve and the clamping block respectively.
Preferably, a plurality of wear-resistant lugs are fixedly connected to the outer wall of the drill bit.
Preferably, the outer wall of the drill bit is coated with an anti-corrosive coating.
Preferably, the bottom of the drill bit is fixedly connected with the mounting block through a reinforcing block.
Has the advantages that:
1. when the drill bit needs to be connected, an external component is sleeved outside the threaded sleeve, then the supporting sleeve is rotated to drive the threaded sleeve to rotate, so that the main shaft body is fixed, then the supporting sleeve is fixed by utilizing the clamping rod, and meanwhile, the wear-resisting capacity of the drill bit can be enhanced due to the arrangement of the wear-resisting lug;
2. meanwhile, the spring can elastically support the clamping rod to a certain degree, the steel balls can reduce the friction force between the sliding block and the inner wall of the annular sliding rail, and meanwhile, the reinforcing block can enhance the strength of the drill bit.
Drawings
Fig. 1 is a schematic structural diagram of a wear-resistant and corrosion-resistant PDC drill bit according to the present invention;
fig. 2 is a schematic structural view of a portion a of fig. 1.
In the figure: the drilling tool comprises a main shaft body 1, a mounting block 2, a threaded sleeve 3, a supporting sleeve 4, a sliding block 5, a clamping block 6, a clamping rod 7, a drill bit 8, a steel ball 9, a clamping sleeve 10, a pull rod 11, a spring 12, a wear-resistant convex block 13 and a reinforcing block 14.
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.
Referring to fig. 1-2, a wear-resistant and corrosion-resistant PDC drill bit comprises a main shaft body 1 and an installation block 2, wherein the main shaft body 1 is fixedly connected with the top of the installation block 2, communicated through holes are formed in the main shaft body 1 and the installation block 2, a threaded sleeve 3 is rotatably sleeved on the outer wall of the main shaft body 1 and used for fixing the main shaft body 1, a support sleeve 4 is fixedly sleeved at the bottom of the threaded sleeve 3 and used for supporting the threaded sleeve 3, and a plurality of sliding blocks 5 are fixedly connected to the bottom of the support sleeve 4 and used for supporting the support sleeve 4;
in the embodiment, the top of the mounting block 2 is provided with an annular slide rail corresponding to the slide block 5, the inner bottom of the annular slide rail is connected with a plurality of steel balls 9 in a sliding manner, so that the friction force between the slide block 5 and the annular slide rail is reduced, and the edges of the steel balls 9 are in contact with the slide block 5;
in this embodiment, two symmetrically arranged clamping blocks 6 are fixedly connected to the outer wall of the mounting block 2, and are used for supporting clamping rods 7, the clamping rods 7 are slidably inserted into the clamping blocks 6 and are used for fixing the support sleeve 4, a plurality of clamping grooves corresponding to the clamping rods 7 are arranged at the bottom of the support sleeve 4 in a surrounding manner, a clamping sleeve 10 is fixedly sleeved at one end, close to the support sleeve 4, of each clamping rod 7, a pull rod 11 is fixedly connected to one end, far away from the clamping sleeve 10, of each clamping rod 7, a spring 12 is sleeved on each clamping rod 7, certain elastic support is provided for each clamping rod 7, and two ends of each spring 12 are respectively and fixedly connected with the clamping sleeve 10;
in this embodiment, the drill bit 8 is fixedly sleeved on the outer wall of the mounting block 2, the bottom of the drill bit 8 is fixedly connected with the mounting block 2 through the reinforcing block 14, the plurality of wear-resistant bumps 13 are fixedly connected on the outer wall of the drill bit 8, so that the wear-resistant capability of the drill bit 8 is enhanced, and the outer wall of the drill bit 8 is coated with an anticorrosive paint, so that the anticorrosive capability of the drill bit 8 is enhanced.
In this embodiment, when the drill bit 8 is connected to needs, establish the outside at thread bush 3 with external member cover, then rotate and support cover 4, drive thread bush 3 and rotate to fix the main shaft body 1, then utilize kelly 7 to fix and support cover 4, the setting of wear-resisting lug 13 simultaneously can strengthen the wear resistance of drill bit 8, and the setting of anticorrosive coating can strengthen the corrosion-resistant ability of drill bit 8.
In this embodiment, the spring 12 may elastically support the clamping rod 7 to a certain extent, the steel ball 9 may reduce friction between the slider 5 and the inner wall of the annular slide rail, and the reinforcing block 14 may enhance the strength of the drill bit 8.
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. The utility model provides a wear-resisting anticorrosive PDC drill bit, includes main shaft body (1) and installation piece (2), its characterized in that: the utility model discloses a drill bit, including main shaft body (1), installation piece (2), the top fixed connection of the main shaft body (1) and installation piece (2), be equipped with communicating opening in the main shaft body (1) and the installation piece (2), screw thread cover (3) have been cup jointed in rotating on the outer wall of the main shaft body (1), the bottom of screw thread cover (3) is fixed to have been cup jointed and is supported cover (4), support a plurality of sliders (5) of bottom fixedly connected with of cover (4), the top of installation piece (2) is equipped with the annular slide rail that corresponds with slider (5), two fixture blocks (6) that fixedly connected with symmetry set up on the outer wall of installation piece (2), sliding on fixture block (6) is inserted and is equipped with kelly (7), the bottom of supporting cover (4) is encircleed and is equipped with a plurality of draw-in grooves that kelly (7) correspond, fixed cover has been cup.
2. The wear resistant and corrosion resistant PDC bit of claim 1, wherein: the inner bottom of the annular slide rail is connected with a plurality of steel balls (9) in a sliding mode, and the edges of the steel balls (9) are in contact with the slide block (5).
3. The wear resistant and corrosion resistant PDC bit of claim 1, wherein: clamping sleeve (10) have been cup jointed to kelly (7) one end fixed cover that is close to support cover (4), one end fixedly connected with pull rod (11) of clamping sleeve (10) are kept away from in kelly (7), the cover is equipped with spring (12) on kelly (7), the both ends of spring (12) respectively with clamping sleeve (10) and fixture block (6) fixed connection.
4. The wear resistant and corrosion resistant PDC bit of claim 1, wherein: the outer wall of the drill bit (8) is fixedly connected with a plurality of wear-resistant lugs (13).
5. The wear resistant and corrosion resistant PDC bit of claim 1, wherein: the outer wall of the drill bit (8) is coated with an anti-corrosion coating.
6. The wear resistant and corrosion resistant PDC bit of claim 1, wherein: the bottom of the drill bit (8) is fixedly connected with the mounting block (2) through a reinforcing block (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920207.1U CN212154663U (en) | 2020-05-27 | 2020-05-27 | Wear-resisting anticorrosive PDC drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020920207.1U CN212154663U (en) | 2020-05-27 | 2020-05-27 | Wear-resisting anticorrosive PDC drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212154663U true CN212154663U (en) | 2020-12-15 |
Family
ID=73701596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020920207.1U Expired - Fee Related CN212154663U (en) | 2020-05-27 | 2020-05-27 | Wear-resisting anticorrosive PDC drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212154663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414778A (en) * | 2021-08-24 | 2021-09-21 | 深圳市卓誉运营科技有限公司 | Robot remote voice recognition control equipment |
-
2020
- 2020-05-27 CN CN202020920207.1U patent/CN212154663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414778A (en) * | 2021-08-24 | 2021-09-21 | 深圳市卓誉运营科技有限公司 | Robot remote voice recognition control equipment |
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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: 20201215 |