CN205100873U - Rotatory steerable drilling device - Google Patents
Rotatory steerable drilling device Download PDFInfo
- Publication number
- CN205100873U CN205100873U CN201520933864.9U CN201520933864U CN205100873U CN 205100873 U CN205100873 U CN 205100873U CN 201520933864 U CN201520933864 U CN 201520933864U CN 205100873 U CN205100873 U CN 205100873U
- Authority
- CN
- China
- Prior art keywords
- top connection
- overcoat
- lower contact
- thrust bearing
- drilling device
- 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 belongs to the shaft boring machine field especially relates to a rotatory steerable drilling device, including dabber and the overcoat that has the central passage, the dabber connect gradually through the screw thread by top connection, center tube and lower clutch and form, outer cover in the outside of center tube, the both ends overlap joint of overcoat is in the outside at top connection and lower clutch edge, each processing of the inboard at the both ends of overcoat has a circular bead, is provided with thrust bearing respectively between two terminal surfaces of overcoat and top connection and the lower clutch, thrust bearing is contained circular bead and top connection / lower clutch, enclosure space that central circumference of cannon bone becomes in, be provided with the oscillating direction on the overcoat and support the pterygoid lamina, the top connection on fixed mounting have the stabilizer. The utility model discloses under the prerequisite of guaranteeing service function, set up thrust bearing in the enclosure space, avoided the harm of gravel and sand detritus to thrust bearing. The stabilizer has been set up in the top connection, the stabilizer need not be put in addition to installation cost has been reduced.
Description
Technical field
The utility model belongs to drilling equipment field, particularly relates to a kind of rotary steerable drilling device.
Background technology
In drilling technology field, rotary steerable drilling technology is progressively applied.The working mechanism of this technology is all rely on the offset guide mechanism of rotary guiding device to make drill bit or drill string that direction skew occur, thus produces guiding.According to the difference of guidance mode, this rotary guiding device can be divided into pushing type and directional type two kinds.Pushing type is near drill bit, arrange the guide support wing plate that can stretch out in device, provides lateral force by this guide support wing plate directly to drill bit.
Pushing type rotary guiding device is made up of mandrel and overcoat mostly, and guide support wing plate is arranged on the coat.In use, drill bit is connected to the lower end of device, in deflecting drilling process, guide support wing plate opens and is against on the borehole wall, and overcoat is static relative to the borehole wall, and mandrel rotates in overcoat.
Application number is CN201420569228.8, patent document discloses a kind of simple and compact for structure, easy to process, assembling that name is called " static pushing type rotary guiding device " easily, the efficient rotary guiding device of use safety.But also come with some shortcomings: on the one hand, under the adverse circumstances that down-hole sandstone landwaste is many, be exposed to outer thrust bearing and easily damage; On the other hand, this device does not have stabilizer, need during use to arrange separately.
Summary of the invention
The utility model provides a kind of rotary steerable drilling device, to solve the problem proposed in above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of rotary steerable drilling device, comprise the mandrel and overcoat with central passage, described mandrel is by top connection, central tube and lower contact are connected in sequence by screw thread, described coat suit is in the outside of central tube, the two ends of overcoat are overlapped on the outside at top connection and lower contact edge, the inner side at the two ends of overcoat is respectively processed with a shoulder, two end faces of overcoat and be respectively arranged with thrust bearing between top connection and lower contact, thrust bearing is comprised in described shoulder and top connection/lower contact, in the enclosure space that central tube surrounds, put outward and be provided with swing type guide support wing plate, described top connection is installed with stabilizer.
One end near lower contact in described overcoat is provided with nearly drill bit deviation sensor and orientation gamma sensor.
The connection of thread of described central tube and top connection and lower contact is provided with stop pin, and the outer end of stop pin and top connection or lower contact weld together.
The external part of described swing type guide support wing plate points to oblique upper.
The beneficial effects of the utility model are:
1, the utility model is under the prerequisite ensureing using function, is arranged on by thrust bearing in enclosure space, avoids the infringement of sandstone landwaste to thrust bearing.
2, in top connection, be provided with stabilizer, separately need not put stabilizer, thus decrease installation cost.
3, mandrel is divided into three sections and processes by the utility model, and the internal diameter of part and the difference of external diameter diminish, and this just decreases the resection of stock, saves process time.In addition, the length of part diminishes, and reduces difficulty of processing, decreases cost of production.
4, stop pin plays the effect preventing screw thread from moving back button, thus makes mandrel can meet high reliability request to link position in drilling process.
5, the outer end of stop pin and top connection or lower contact weld together, and ensure that stop pin can not slippage.In addition when keeping in repair, being convenient to maintenance to be pulled down by stop pin, by the method for boring or grinding, solder joint can being removed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial enlargement structure chart at A place in Fig. 1;
Fig. 3 is the partial enlargement structure chart at B place in Fig. 1.
In figure: 1-top connection, 2-stabilizer, 3-stop pin, 4-thrust bearing, 5-central tube, 6-overcoat, 7-swing type guide support wing plate, 8-lower contact.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
The utility model comprises the mandrel and overcoat 6 with central passage, described mandrel is by top connection 1, central tube 5 and lower contact 8 are connected in sequence by screw thread, described overcoat 6 is sleeved on the outside of central tube 5, the two ends of overcoat 6 are overlapped on the outside at top connection 1 and lower contact 8 edge, the inner side at the two ends of overcoat 6 is respectively processed with a shoulder, two end faces of overcoat 6 and be respectively arranged with thrust bearing 4 between top connection 1 and lower contact 8, thrust bearing 4 is comprised in described shoulder and top connection 1/ lower contact 8, in the enclosure space that central tube 5 surrounds, overcoat 6 is provided with swing type guide support wing plate 7, described top connection 1 is installed with stabilizer 2.
Creep into state in order to what grasp down-hole in real time, in described overcoat 6, be provided with nearly drill bit deviation sensor and orientation gamma sensor near one end of lower contact 8.
Described central tube 5 is provided with stop pin 3 with the connection of thread of top connection 1 and lower contact 8, and the outer end of stop pin 3 and top connection 1 or lower contact 3 weld together.Stop pin 3 plays the effect preventing screw thread from moving back button, thus makes mandrel can meet high reliability request to link position in drilling process.The outer end of stop pin 3 and top connection 1 or lower contact 8 weld together, and ensure that stop pin 3 can not slippage.In addition when keeping in repair, being convenient to maintenance to be pulled down by stop pin 3, by the method for boring or grinding, solder joint can being removed.
The external part of described swing type guide support wing plate 7 points to oblique upper.
Thrust bearing 4, under the prerequisite ensureing using function, is arranged in enclosure space, avoids the infringement of sandstone landwaste to thrust bearing 4 by the utility model.Top connection 1 is provided with stabilizer 2, need not separately puts stabilizer 2, thus decrease installation cost.Mandrel is divided into three sections and processes by the utility model, and the internal diameter of part and the difference of external diameter diminish, and this just decreases the resection of stock, saves process time.In addition, the length of part diminishes, and reduces difficulty of processing, decreases cost of production.
Utilize technical scheme described in the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection domain of the present utility model.
Claims (4)
1. a rotary steerable drilling device, comprise the mandrel and overcoat (6) with central passage, it is characterized in that: described mandrel is by top connection (1), central tube (5) and lower contact (8) are connected in sequence by screw thread, described overcoat (6) is sleeved on the outside of central tube (5), the two ends of overcoat (6) are overlapped on the outside at top connection (1) and lower contact (8) edge, the inner side at the two ends of overcoat (6) is respectively processed with a shoulder, two end faces of overcoat (6) and be respectively arranged with thrust bearing (4) between top connection (1) and lower contact (8), thrust bearing (4) is comprised in described shoulder and top connection (1)/lower contact (8), in the enclosure space that central tube (5) surrounds, overcoat (6) is provided with swing type guide support wing plate (7), described top connection (1) is installed with stabilizer (2).
2. a kind of rotary steerable drilling device according to claim 1, is characterized in that: the one end near lower contact (8) in described overcoat (6) is provided with nearly drill bit deviation sensor and orientation gamma sensor.
3. a kind of rotary steerable drilling device according to claim 1, it is characterized in that: the connection of thread of described central tube (5) and top connection (1) and lower contact (8) is provided with stop pin (3), the outer end of stop pin (3) and top connection (1) or lower contact (3) weld together.
4. a kind of rotary steerable drilling device according to claim 1, is characterized in that: the external part of described swing type guide support wing plate (7) points to oblique upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933864.9U CN205100873U (en) | 2015-11-20 | 2015-11-20 | Rotatory steerable drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520933864.9U CN205100873U (en) | 2015-11-20 | 2015-11-20 | Rotatory steerable drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205100873U true CN205100873U (en) | 2016-03-23 |
Family
ID=55516660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520933864.9U Expired - Fee Related CN205100873U (en) | 2015-11-20 | 2015-11-20 | Rotatory steerable drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205100873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917585A (en) * | 2017-05-08 | 2017-07-04 | 天津中新安德科技有限公司 | A kind of rotary drilling guider |
-
2015
- 2015-11-20 CN CN201520933864.9U patent/CN205100873U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917585A (en) * | 2017-05-08 | 2017-07-04 | 天津中新安德科技有限公司 | A kind of rotary drilling guider |
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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: 20160323 Termination date: 20191120 |