CN204186303U - With the supporter for turbine drilling tool of PDC thrust bearing - Google Patents
With the supporter for turbine drilling tool of PDC thrust bearing Download PDFInfo
- Publication number
- CN204186303U CN204186303U CN201420632562.3U CN201420632562U CN204186303U CN 204186303 U CN204186303 U CN 204186303U CN 201420632562 U CN201420632562 U CN 201420632562U CN 204186303 U CN204186303 U CN 204186303U
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- bearing
- pdc
- joint
- central axis
- urceolus
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Abstract
With the supporter for turbine drilling tool of PDC thrust bearing, comprise shaft coupling, bearing urceolus, upper PDC bearing, lower PDC bearing, bearing joint, central axis and joint.Described bearing urceolus two ends are all set to pin thread, and upper end connects turbine section urceolus, and lower end coordinates with bearing joint.Described shaft coupling is claw type, and pawl end is connected with turbine section, transmitting torque, and the other end is provided with internal thread, is connected with central axis.Described upper end of joint connects central axis, and bottom is connected with drill bit.Utilize PDC material wear-resistant, voltage endurance, effectively improve the application life of cartridge, overall structure is simple and easy to dismounting, and examine and replace is convenient.
Description
Technical field
The utility model relates to a kind of supporter for turbine drilling tool with PDC thrust bearing, belongs to petroleum drilling and mining technical field of underground.
Background technology
Petroleum drilling engineering geologic structure is complicated, and condition of work is extremely severe.Along with the intensification of creeping into well depth, the requirement for the aspect such as intensity and application life of drilling equipment is also increased gradually.
At present, turbodrill starts to occupy critical role in oil drilling with its good drilling well effect.But due to particular job condition of turbodrill, its parts are in the environment of high temperature, high pressure and corrosion for a long time, and application life is usually all shorter.Particularly turbodrill middle (center) bearing, also can bear the impact loading in the course of work, 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.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of supporter for turbine drilling tool with PDC thrust bearing, improves the application life of turbodrill.
The technical scheme that the utility model provides is: with the supporter for turbine drilling tool of PDC thrust bearing, comprises shaft coupling, bearing urceolus, upper PDC bearing, lower PDC bearing, bearing joint, central axis and joint.Described bearing urceolus two ends are all set to pin thread, and upper end connects turbine section urceolus, and lower end coordinates with bearing joint.Described shaft coupling is claw type, and pawl end is connected with turbine section, transmitting torque, and the other end is provided with internal thread, is connected with central axis.Described upper end of joint connects central axis, and bottom is connected with drill bit.
Described upper PDC bearing and lower PDC bearing face respectively welding-on have PDC sheet, each 16 ~ 20, and described upper PDC bearing and lower PDC bearing face are oppositely arranged, and the wear-resisting and resistance to elevated temperatures of application PDC sheet improves the application life of bearing.
Described central axis adopts hollow-core construction, top be provided with 3 with the runner of through, shoulder has link slot, and groove arranges screwed hole, fixes with lower PDC bearing fit.
Compared with prior art, advantage of the present utility model have following some.
1. the utility model adopts PDC sheet as the parts of thrust bearing carrying friction, and uniform welding-on is at the upper and lower two-part end face of thrust bearing, and overall stress equalization, adds the abrasion resistance that PDC material is good and crushing resistance, effectively raise the application life of bearing.
2., in the utility model, bearing joint urceolus is designed to bearing urceolus and bearing joint two part is formed, and structure is simple and easy to dismounting, is convenient to the inspect and change of thrust bearing.
3., in the utility model, thrust bearing group installation site is near central axis runner, and drilling fluid can effective cooling bearing assembly in cyclic process, prevents over-heating erosion, improves application life.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is thrust bearing component structural representation.
Fig. 3 is upper PDC bearing arrangement schematic diagram.
Fig. 4 is lower PDC bearing arrangement schematic diagram.
Number in the figure is expressed as: 1, shaft coupling; 2, bearing urceolus; 3, upper PDC bearing; 4, lower PDC bearing; 5, bearing joint; 6, central axis; 7, joint.
Detailed description of the invention
In order to the technical characteristic 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, with the supporter for turbine drilling tool of PDC thrust bearing, comprise shaft coupling 1, bearing joint 2, upper PDC bearing 3, lower PDC bearing 4, bearing urceolus 5, central axis 6 and joint 7.Wherein, lower PDC bearing 4 coordinates with mounting groove on central axis 6 shoulder, and is screwed.Upper PDC bearing 3 and lower PDC bearing 4 end face are oppositely arranged, and also load on central axis 6, and end face all welding-on have PDC sheet, each 16-25 sheet.
After shaft coupling 1 being contained in central axis 6 upper end, be inserted in bearing urceolus 5, bearing urceolus 5 upper end arranges box, coordinates install with bearing joint 2 pin thread, and by bearing joint 2 pin thread end face compresses PDC bearing 3, realizes bearing axial location.
Shaft coupling 1 adopts jaw coupling, coordinates with upper end turbine section shaft coupling.Cartridge bottom is joint 7, directly connect with the use of drill bit.
During work, turbine section drives cartridge central axis 6 to rotate by jaw coupling, drives the bit be connected with cartridge joint 7 further, reaches the object of rock-breaking and well-drilling.In drilling process, between drill bit and rock stratum, shock and vibration are delivered on thrust bearing, utilize the wear-resisting and crushing resistance that the PDC sheet of bearing face welding-on is good, effectively slow down the wear out failure of bearing.When bearing maintenance and replacing, only need to pull down bearing joint 2 and can take out thrust bearing group, convenient and swift.
The utility model can be realized by the above.
Claims (3)
1. with the supporter for turbine drilling tool of PDC thrust bearing, comprise shaft coupling, bearing urceolus, upper PDC bearing, lower PDC bearing, bearing joint, central axis and joint, it is characterized in that: described bearing urceolus two ends are all set to pin thread, upper end connects turbine section urceolus, and lower end coordinates with bearing joint; Described shaft coupling is claw type, and pawl end is connected with turbine section, transmitting torque, and the other end is provided with internal thread, is connected with central axis; Described upper end of joint connects central axis, and bottom is connected with drill bit.
2. the supporter for turbine drilling tool with PDC thrust bearing according to claim 1, is characterized in that: described upper PDC bearing and lower PDC bearing face respectively welding-on have PDC sheet, each 16 ~ 20, and described upper PDC bearing and lower PDC bearing face are oppositely arranged.
3. the supporter for turbine drilling tool with PDC thrust bearing according to claim 1, it is characterized in that: described central axis adopts hollow-core construction, top be provided with 3 with the runner of through, shoulder has link slot, groove arranges screwed hole, also fixing with lower PDC bearing fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632562.3U CN204186303U (en) | 2014-10-29 | 2014-10-29 | With the supporter for turbine drilling tool of PDC thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420632562.3U CN204186303U (en) | 2014-10-29 | 2014-10-29 | With the supporter for turbine drilling tool of PDC thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186303U true CN204186303U (en) | 2015-03-04 |
Family
ID=52618313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420632562.3U Expired - Fee Related CN204186303U (en) | 2014-10-29 | 2014-10-29 | With the supporter for turbine drilling tool of PDC thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299063A (en) * | 2015-09-16 | 2016-02-03 | 盐城市大冈石油工具厂有限责任公司 | Endurance alloy combination bearing of screw rod drill |
-
2014
- 2014-10-29 CN CN201420632562.3U patent/CN204186303U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299063A (en) * | 2015-09-16 | 2016-02-03 | 盐城市大冈石油工具厂有限责任公司 | Endurance alloy combination bearing of screw rod drill |
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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 |
Granted publication date: 20150304 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |