CN204253590U - A kind of turbodrill radial bearing - Google Patents
A kind of turbodrill radial bearing Download PDFInfo
- Publication number
- CN204253590U CN204253590U CN201420632666.4U CN201420632666U CN204253590U CN 204253590 U CN204253590 U CN 204253590U CN 201420632666 U CN201420632666 U CN 201420632666U CN 204253590 U CN204253590 U CN 204253590U
- Authority
- CN
- China
- Prior art keywords
- turbodrill
- bearing
- outer ring
- inner ring
- radial bearing
- 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.)
- Expired - Fee Related
Links
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a kind of turbodrill radial bearing, comprise bearing outer ring and inner ring, the even welding-on of described inner surface has cemented carbide bar, and upper and lower end face, described outer ring is provided with 4 ~ 6 outstanding dental inlays, and described outer ring is provided with 5 pilot flows.Described inner ring endoporus is Hexagon, and the even welding-on in described inner ring lower end surface has PDC sheet.The utility model structure is simple, and easy installation and removal, can effectively slow down Bearing inner wear out failure, improves the working life of turbodrill.
Description
Technical field
The utility model relates to a kind of mud motor of petroleum drilling operation, and specifically a kind of turbodrill radial bearing, belongs to petroleum drilling and mining technical field of underground.
Background technique
Turbodrill is the widely used well dynamic instrument of oil drilling, but special due to operating conditions, and its parts are in the environment of high temperature, high pressure and corrosion for a long time, and working life is usually all shorter.Particularly radial bearing and thrust bearing in turbodrill, also can bear the impact loading in working procedure, collision and serious wear, and its life-span directly affects life-span of a whole set of turbodrill.Therefore, the intensity and the use that improve turbodrill bearing are one of drilling well industry urgent problems.
At present, the radial bearing of turbodrill mainly adopts metal-metal sliding bearing, avoids the use of rubber accessory, improves the wear-resisting property of bearing to a certain extent.But still there is following problem: 1. axial carrying capacity is poor, easily cause wear out failure, affect bearing integral working life; 2. with central shaft interference fit, installing/dismounting inconvenience.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of turbodrill radial bearing, in order to improve the working life of turbodrill.
The technological scheme that the utility model provides is: a kind of turbodrill radial bearing, comprises inner ring and outer ring.Described outer ring sleeve is on inner ring, and described outer ring is provided with 5 pilot flows, and drilling fluid enters cavity by pilot flow, plays the effect of cooling and lubrication.
Upper and lower end face, described outer ring is provided with 4 ~ 6 outstanding dental inlays, is connected respectively by dental inlay with turbodrill stator and bearing housing.
The even welding-on of described inner surface has cemented carbide bar, effectively slows down inter deterioration when coordinating with inner ring, improves physical life.
Described inner ring endoporus is Hexagon, and the even welding-on in inner ring lower end surface has PDC sheet.Inner ring is linked on turbodrill Hexagon main shaft by hexagonal inner hole, ensures that inner ring rotates together along with main shaft, and bearing can also be made balanced at radial force; On the PDC sheet of lower end surface and bearing housing PDC sheet with the use of, carry certain thrust load slowing down while bearing wear was lost efficacy.
Compared with prior art, the utility model has the advantage of the following aspects.
1. use hexagonal inner hole to coordinate with central shaft, do not need interference fit effectively can transmit rotation, change convenient to disassembly.
2. bearing outer ring internal surface seting welding carbide bar, can effectively slow down Bearing inner wear out failure, improve the working life of bearing.
3. bearing inner race end face welding-on PDC sheet, can bear certain thrust load, improves the working life of bearing further.
Accompanying drawing explanation
Fig. 1 is the utility model radial bearing structural representation.
Fig. 2 is radial bearing inner ring structure schematic diagram.
Fig. 3 is radial bearing outer ring structure schematic diagram.
Number in the figure is expressed as: 1. inner ring; 2. outer ring; 3. cemented carbide bar; 4. pilot flow; 5. dental inlay.
Embodiment
In order to the technical characteristics of the present utility model of understanding clearly and effect thereof, below in conjunction with embodiment and the attached figure that shines, the utility model is further illustrated.
Embodiment
With reference to Fig. 1, a kind of turbodrill radial bearing, comprises inner ring 1 and outer ring 2, and the outer ring 2 even welding-on of internal surface has cemented carbide bar 3, and upper and lower end face, outer ring 2 is provided with 4 ~ 6 outstanding dental inlays 3, and outer ring 2 is provided with 5 pilot flows 4.Inner ring 1 endoporus is Hexagon, and the even welding-on in inner ring 1 lower end surface has PDC sheet.
During actual use, radial bearing inner ring 1 overlaps on center shaft, and by hexagonal inner hole transmitting torque, the PDC sheet of inner ring 1 lower end surface welding-on is corresponding with PDC sheet on bearing housing, effectively can slow down the wear out failure of bearing, can also carry certain thrust load simultaneously.Bearing outer ring 2 is linked on inner ring 1, is connected respectively by dental inlay 5 with turbodrill stator and bearing housing; The cemented carbide bar 3 of outer ring 2 internal surface welding-on can slow down the mutual wearing and tearing between bearing inner race 1 and outer ring 2, and drilling fluid enters in cavity by pilot flow 4, further to bearing cooling and lubrication, can improve the working life of bearing.
Content of the present utility model can be realized as mentioned above.
Claims (1)
1. a turbodrill radial bearing, comprises inner ring and outer ring, it is characterized in that: the even welding-on of described inner surface has cemented carbide bar; Upper and lower end face, described outer ring is provided with 4 ~ 6 outstanding dental inlays; Described inner ring endoporus is Hexagon, and the even welding-on in inner ring lower end surface has PDC sheet; Described outer ring is provided with 5 pilot flows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632666.4U CN204253590U (en) | 2014-10-29 | 2014-10-29 | A kind of turbodrill radial bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632666.4U CN204253590U (en) | 2014-10-29 | 2014-10-29 | A kind of turbodrill radial bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253590U true CN204253590U (en) | 2015-04-08 |
Family
ID=52957903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420632666.4U Expired - Fee Related CN204253590U (en) | 2014-10-29 | 2014-10-29 | A kind of turbodrill radial bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253590U (en) |
-
2014
- 2014-10-29 CN CN201420632666.4U patent/CN204253590U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20211029 |