CN202391950U - Radial bearing for oil drilling screw tool - Google Patents
Radial bearing for oil drilling screw tool Download PDFInfo
- Publication number
- CN202391950U CN202391950U CN2011204768322U CN201120476832U CN202391950U CN 202391950 U CN202391950 U CN 202391950U CN 2011204768322 U CN2011204768322 U CN 2011204768322U CN 201120476832 U CN201120476832 U CN 201120476832U CN 202391950 U CN202391950 U CN 202391950U
- Authority
- CN
- China
- Prior art keywords
- radial bearing
- inner ring
- outer ring
- ring
- wearing layer
- 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
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Abstract
The utility model relates to a radial bearing for an oil drilling screw tool. The radial bearing comprises an outer ring and an inner ring, wherein a wear-resistant layer is arranged on an inner surface of the outer ring; a wear-resistant layer is arranged on an outer surface of the inner ring; and the outer diameter of the wear-resistant layer on the inner ring is greater than that of the inner ring. The wear-resistant layers are arranged on the inner ring and the outer ring of the radial bearing, so that a contact surface of the inner ring and the outer ring of the radial bearing has high corrosion resistance, high impact resistance and high bearing load, the service life of the radial bearing is prolonged, the performance of the radial bearing can be guaranteed even if the radial bearing is used under severe conditions, and the working efficiency of oil drilling machinery is improved.
Description
Technical field
The utility model relates to a kind of bearing, relates to a kind of helicoid hydraulic motor that in the petroleum production process, uses specifically and uses radial bearing.
Background technique
In oil drilling and r eoovery machine, radial bearing is the bearing of using always, and the use of radial bearing is to suppress radially moving with inclination of axle, and axle is played protection and supporting effect.But running up mechanically, radial bearing is applied very big axial and radial force, so; Radial bearing easy abrasion, corrosion consequently damage, and greatly reduce its working life, particularly in the petroleum production operation; If radial bearing damages, need whole drilling rod be proposed in oil well during replacing, exploitation work can not be continued; Reduce the working efficiency of rig, improved cost of winning.
The model utility content
The problem that the utility model will solve is to above problem, a kind of corrosion-resistant, shock resistance is provided, bears that load is big, the petroleum drilling and mining helicoid hydraulic motor of long service life is used radial bearing.
For addressing the above problem; The technological scheme that the utility model adopted is: the petroleum drilling and mining helicoid hydraulic motor is used radial bearing; Comprise outer ring and inner ring; The internal surface of said outer ring is provided with wearing layer, and the outer surface of said inner ring is provided with wearing layer, and the external diameter of the wearing layer on the said inner ring is greater than the external diameter of inner ring.
A kind of concrete optimized project, a wherein end of said outer ring is provided with keyway, and the other end of said outer ring is provided with annular groove.
A kind of concrete optimized project, the excircle of said outer ring is provided with annular protrusion.
A kind of concrete optimized project, wearing layer on the said outer ring and the wearing layer on the inner ring are hard alloy layer.
The utility model is taked above technological scheme; Have the following advantages: be provided with wearing layer on the inner ring of radial bearing and the outer ring; Make the surface of contact of inner ring and the outer ring of radial bearing corrosion-resistant, shock resistance arranged, born the big performance of load, prolonged the working life of radial bearing, even under harsh conditions, use; Also can guarantee it self performance, improve the working efficiency of oil drilling and r eoovery machine.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment PetroChina Company Limited. drilling helicoid hydraulic motor with radial bearing.
Among the figure:
The 1-outer ring; The 2-annular protrusion; The 3-keyway; The 4-inner ring; The 5-wearing layer; The 6-wearing layer; The 7-annular groove.
Embodiment
Embodiment: shown in accompanying drawing; The petroleum drilling and mining helicoid hydraulic motor is used radial bearing, comprises outer ring 1 and inner ring 4, and the internal surface of said outer ring 1 is provided with wearing layer 6; The outer surface of said inner ring 4 is provided with wearing layer 5, and the external diameter of the wearing layer 5 on the said inner ring 4 is greater than the external diameter of inner ring 4.
A wherein end of said outer ring 1 is provided with keyway 3, and the other end of said outer ring 1 is provided with annular groove 7.
The excircle of said outer ring 1 is provided with annular protrusion 2.
Wearing layer 6 on the said outer ring 1 is hard alloy layer with the wearing layer 5 on the inner ring 4.
The internal surface of outer ring 1 is provided with wearing layer 6, and the outer surface of inner ring 4 is provided with surface of contact that wearing layer 5 makes inner ring 4 and the outer ring 1 of radial bearing have been had corrosion-resistant, shock resistance, born the big performance of load, has prolonged the working life of radial bearing.
Claims (4)
1. the petroleum drilling and mining helicoid hydraulic motor is used radial bearing; Comprise outer ring (1) and inner ring (4); It is characterized in that: the internal surface of said outer ring (1) is provided with wearing layer (6); The outer surface of said inner ring (4) is provided with wearing layer (5), and the external diameter of the wearing layer (5) on the said inner ring (4) is greater than the external diameter of inner ring (4).
2. petroleum drilling and mining helicoid hydraulic motor as claimed in claim 1 is used radial bearing, it is characterized in that: a wherein end of said outer ring (1) is provided with keyway (3), and the other end of said outer ring (1) is provided with annular groove (7).
3. petroleum drilling and mining helicoid hydraulic motor as claimed in claim 2 is used radial bearing, it is characterized in that: the excircle of said outer ring (1) is provided with annular protrusion (2).
4. petroleum drilling and mining helicoid hydraulic motor as claimed in claim 1 is used radial bearing, it is characterized in that: wearing layer (6) on said outer ring (1) and the wearing layer (5) on the inner ring (4) are hard alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204768322U CN202391950U (en) | 2011-11-25 | 2011-11-25 | Radial bearing for oil drilling screw tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204768322U CN202391950U (en) | 2011-11-25 | 2011-11-25 | Radial bearing for oil drilling screw tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391950U true CN202391950U (en) | 2012-08-22 |
Family
ID=46666878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204768322U Expired - Fee Related CN202391950U (en) | 2011-11-25 | 2011-11-25 | Radial bearing for oil drilling screw tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105262A (en) * | 2018-01-03 | 2018-06-01 | 中国石油集团西部钻探工程有限公司 | Anti-impact shock-absorbing TC bearings and attachment device |
-
2011
- 2011-11-25 CN CN2011204768322U patent/CN202391950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105262A (en) * | 2018-01-03 | 2018-06-01 | 中国石油集团西部钻探工程有限公司 | Anti-impact shock-absorbing TC bearings and attachment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20121125 |