CN2413011Y - Floating rotor turbne mud motor - Google Patents
Floating rotor turbne mud motor Download PDFInfo
- Publication number
- CN2413011Y CN2413011Y CN 00229125 CN00229125U CN2413011Y CN 2413011 Y CN2413011 Y CN 2413011Y CN 00229125 CN00229125 CN 00229125 CN 00229125 U CN00229125 U CN 00229125U CN 2413011 Y CN2413011 Y CN 2413011Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- turbine
- stator
- wheel shaft
- face
- 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 an underground turbine mud motor used for matching with petroleum drilling wells. The utility model is characterized in that a stator is assembled in a shell body of a turbine and is connected with the shell body of a turbine into a whole by pressing the stator by an upper and a lower joints. A rotor is sheathed on a turbine shaft, and the shape of a center hole of the rotor is the same as the shape of the sectional plane of the turbine shaft. A rolling rubbing pair which is composed of a movable ring, a rolling body and a static ring is arranged between the end surface of the exit of the rotor and the end surface of the entrance of the stator in the next grade The position of a centre hole on the end surface of the exit of the rotor is provided with circular notch with a downward opening, and the movable ring is positioned in the circular notch. The position of a centre hole on the end surface of the entrance of the stator is provided with a circular notch with an upward opening, the static ring is positioned in the circular notch, and the rolling body is positioned between the movable ring and the static ring.
Description
The utility model relates to a kind of down-hole turbine MTR of oil drilling adapted.
In the oil drilling exploration, the turbine MTR that oil drilling down-hole turbodrill adopts has fixedly stator and rotor turbine MTR and floating stator turbine MTR.
Fixedly stator and rotor turbine MTR is simple in structure, low cruise is more stable, the axial force that is subjected at the same pressure drop lower bearing is only produced by rotor portion, but gap adjustment difficulty relatively, and along with the wearing and tearing of bearing, gap between the turbine stator and rotor changes, last gap increases gradually and descends the gap to reduce gradually, and when the bearing excessive wear, the prime rotor will contact with secondary stator, cause the wearing and tearing of turbine stator and rotor, even can cause the badly damaged of turbine MTR.
Floating stator turbine MTR does not have the gap adjustment, and the wearing and tearing of bearing do not influence the gap between the turbine stator and rotor, and under identical turbine external diameter, the blade mean radius is big, and the moment of torsion of generation is big.But the structure more complicated of floating stator turbine MTR, the low cruise instability, the axial force that is subjected at the same pressure drop lower bearing is produced by stator and rotor two parts, axial force is bigger, bearing wear is fast, limit stator by alignment pin between stator and the turbine shroud and rotate and allow the relative slip of stator, the functional reliability of its alignment pin is lower.
Task of the present utility model provides a kind of floating rotor turbine MTR with rolling friction pair, has the adjustment of no gap, gap between the turbine stator and rotor does not change with the wearing and tearing of cartridge bearing, make things convenient for field maintenance and replacing, the characteristics that stable and reliable working performance, bearing life significantly improve.
Design main points of the present utility model are, stator is assemblied in the turbine shroud, and by top connection and lower contact it are compressed with turbine shroud and to be connected as a single entity, and rotor is sleeved on the turbine wheel shaft, and rotor bore is consistent with the cross sectional shape of turbine wheel shaft.Rotor is subjected to gravity and the power effect of surging is seated on the secondary stator.Between rotor outlet end face and secondary stator inlet end face rolling friction pair is housed, rolling friction pair is made up of rotating ring, rolling element, stationary ring.Have a circular recess that Open Side Down at rotor outlet end face central hole location, rotating ring is positioned at circular recess, and the rotating ring centre bore matches with the turbine wheel shaft face of cylinder, have the circular recess that an opening makes progress at stator inlet end face central hole location, stationary ring is positioned at circular recess, and rolling element is between rotating ring and stationary ring.
Compared with prior art, the floating rotor turbine MTR of band rolling friction pair described in the utility model, rotor can be at axial float between the stator up and down, turbine is fixed, gap between rotor does not change with the wearing and tearing of cartridge bearing, utilize the rotor bore relation consistent to come the constrained rotor to rotate with respect to turbine wheel shaft with the cross sectional shape of turbine wheel shaft, between rotor outlet end and stator entrance point, rolling friction pair is housed, has the functional reliability height, no gap is adjusted, the low speed resistance is little, field maintenance and replacing are convenient, the advantage that the turbodrill working life significantly improves.
Fig. 1 is a general structure generalized section of the present utility model.
Fig. 2 is the cross section structure schematic diagram of turbine wheel shaft of the present utility model and rotor.
Fig. 3 is the cross section structure schematic diagram of turbine wheel shaft of the present utility model and rotor.
Fig. 4 is rotor of the present utility model and rotating ring cross section structure schematic diagram.
Fig. 5 is stator of the present utility model and stationary ring cross section structure schematic diagram.
Below in conjunction with accompanying drawing the utility model is further described: in the drawings, stator (4) is pressed in the turbine shroud (3), stator and turbine shroud are connected as a single entity, can not produce relative motion by top connection (1) and lower contact (11).Between top connection and worm gear pair, be equipped with and adjust cover (2), alignment bearing (10) is housed between lower contact and worm gear pair.The centre bore of rotor (5) is made and the consistent shape of turbine wheel shaft (9) cross sectional shape, the cross section of turbine wheel shaft can be the face of cylinder with a plane, also can be the face of cylinder, come restrict rotor to rotate with respect to turbine wheel shaft by the peculiar mutual restriction relation in the face of cylinder on band plane itself with two planes.But because rotor is sleeved on the turbine wheel shaft, unfixing in the axial direction, rotor is subjected to gravity and the power effect of surging is seated on the secondary stator, and can endwisely slip with respect to turbine wheel shaft, at axial float between the stator up and down.Have a circular recess that Open Side Down at rotor outlet end face central hole location, rotating ring (6) is that an annular solid is placed in the circular recess, and the rotating ring centre bore matches with the turbine wheel shaft face of cylinder, and rotating ring is sleeved on the turbine wheel shaft with rotor, and together rotation; Have the circular recess that an opening makes progress at stator inlet end face central hole location, stationary ring (8) is that an annular solid is fixed in the circular recess, and rolling element (7) is spherical, is placed between rotating ring and the stationary ring.The rolling friction pair of being made up of rotating ring, rolling element, stationary ring is installed between rotor outlet end face and the stator inlet end face as removable consumable accessory, makes that the low speed resistance is little.When the bearing wear of cartridge or turbine section, only turbine wheel shaft sinks, and rotor is floating between the stator up and down, does not influence the relative position of turbine stator and rotor, does not influence the work of worm gear pair, can give full play to the ability to work of bearing like this.Because the hydraulic load that rotors at different levels are subjected to passes to secondary stator by rolling friction pair, realize axially unloading, the service load that bearing is subjected to greatly reduces, and bearing life will significantly improve, thereby greatly increase the working life of turbine MTR.
Claims (6)
1, a kind of floating rotor turbine MTR of forming by top connection (1), lower contact (11), turbine shroud (3), stator (4), rotor (5), turbine wheel shaft (9) etc., it is characterized in that stator (4) is assemblied in the turbine shroud, and be pressed in the turbine shroud by top connection and lower contact, rotor (5) is assemblied on the turbine wheel shaft (9), and rotor bore is consistent with the cross sectional shape of turbine wheel shaft, comes restrict rotor to endwisely slip with respect to turbine wheel shaft with respect to turbine wheel shaft rotation and permission rotor by mutual constraint.
2, floating rotor turbine MTR according to claim 1, it is characterized in that between the inlet end face of the exit end face of rotor and stator the rolling friction pair of being made up of rotating ring (6), rolling element (7), stationary ring (8) being housed, rolling element is between rotating ring and stationary ring.
3, floating rotor turbine MTR according to claim 2, the cross sectional shape that it is characterized in that rotor bore and turbine wheel shaft is the face of cylinder with a plane.
4, floating rotor turbine MTR according to claim 2, the cross sectional shape that it is characterized in that rotor bore and turbine wheel shaft is the face of cylinder with two planes.
5, according to claim 3,4 described floating rotor turbine MTR, it is characterized in that having a circular recess that Open Side Down at rotor outlet end face central hole location, rotating ring is positioned at recess, and the rotating ring centre bore matches with the turbine wheel shaft face of cylinder; Have the circular recess that an opening makes progress at stator inlet end face central hole location, stationary ring is positioned at circular recess.
6, floating rotor turbine MTR according to claim 5 is characterized in that rolling element is spherical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229125 CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229125 CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413011Y true CN2413011Y (en) | 2001-01-03 |
Family
ID=33592482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00229125 Expired - Fee Related CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413011Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434283A (en) * | 2011-11-09 | 2012-05-02 | 无锡康明斯涡轮增压技术有限公司 | Integrated low-pressure stage turbine shell structure for two-stage supercharging exhaust gas turbocharger |
| CN102561942A (en) * | 2010-12-23 | 2012-07-11 | 普拉德研究及开发股份有限公司 | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| CN104080996A (en) * | 2011-11-10 | 2014-10-01 | 普拉德研究及开发股份有限公司 | Reinforced directional drilling assemblies and methods of forming same |
-
2000
- 2000-01-26 CN CN 00229125 patent/CN2413011Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561942A (en) * | 2010-12-23 | 2012-07-11 | 普拉德研究及开发股份有限公司 | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| US9175515B2 (en) | 2010-12-23 | 2015-11-03 | Schlumberger Technology Corporation | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| US10502002B2 (en) | 2010-12-23 | 2019-12-10 | Schlumberger Technology Corporation | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| CN102434283A (en) * | 2011-11-09 | 2012-05-02 | 无锡康明斯涡轮增压技术有限公司 | Integrated low-pressure stage turbine shell structure for two-stage supercharging exhaust gas turbocharger |
| CN104080996A (en) * | 2011-11-10 | 2014-10-01 | 普拉德研究及开发股份有限公司 | Reinforced directional drilling assemblies and methods of forming same |
| US10724299B2 (en) | 2011-11-10 | 2020-07-28 | Schlumberger Technology Corporation | Reinforced directional drilling assemblies and methods of forming same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |