CN204677190U - A kind of rotary steering system with rib return mechanism - Google Patents
A kind of rotary steering system with rib return mechanism Download PDFInfo
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- CN204677190U CN204677190U CN201520185270.4U CN201520185270U CN204677190U CN 204677190 U CN204677190 U CN 204677190U CN 201520185270 U CN201520185270 U CN 201520185270U CN 204677190 U CN204677190 U CN 204677190U
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- rib
- plunger
- steering system
- hydraulic cylinder
- return mechanism
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Abstract
The utility model is about a kind of rotary steering system with rib return mechanism, relates to petroleum drilling apparatus field.It makes rib can be returned to the position fitted like a glove with initial position.It comprises non-rotating cover, rotating shaft, rib, first trip bolt, elastomeric element, second trip bolt, plunger, hydraulic cylinder and hydraulic module, rib is connected to non-rotating cover by rotating shaft and can is that axis of rotation rotates with rotating shaft, non-rotating putting offers the first groove, hydraulic cylinder is fixedly installed in the first groove, plunger is arranged in hydraulic cylinder, the inwall of plunger and plunger cylinder sleeve forms sliding pair, the root edge of hydraulic cylinder, between the bottom surface of plunger and the end face of groove, there is accommodation space, hydraulic oil is full of accommodation space, hydraulic cylinder outer wall also has outwardly boss, elastomeric element is tabular, one end is fixed on rib, the other end is fixed in the space between boss and non-rotating cover, hydraulic module is used for being filled with hydraulic oil in accommodation space.
Description
Technical field
The utility model relates to a kind of petroleum drilling apparatus field, particularly relates to a kind of rotary steering system with rib return mechanism.
Background technology
In petroleum drilling apparatus field, rotary steering system is mechanical, electrical, a liquid integrated downhole closed loop control tool system, and it is the important steering tool of the drilling well such as extended reach well, horizontal well.Three hydraulic modules and three ribs of rotary steering system are arranged on non-rotating putting alternately, plunger part in hydraulic module is arranged on below rib, when needs entangle unload time, rotary steering system controls corresponding hydraulic module work, now, its plunger is lifting straight under the effect of hydraulic module, plunger promote rib near and compress the borehole wall, thus reach the object of well straightening.When applying this rotary steering system, after completing a well straightening task, system will stop corresponding hydraulic module work, now, wish that corresponding rib can be returned to initial position within the regular hour.
Realizing in the utility model process, inventor finds that in prior art, at least there are the following problems:
After rotary steering system completes a well straightening task, when needs rib is returned to initial position, because rib is just by natural reply, be difficult to be returned to the position fitted like a glove with initial position completely.
Utility model content
In view of this, the utility model provides a kind of rotary steering system with rib return mechanism, and main purpose is the intervention by external force, makes when needs rib is returned to initial position, the position fitted like a glove with initial position can be returned to, thus more be suitable for practicality.
For achieving the above object, the utility model mainly provides following technical scheme:
On the one hand, embodiment of the present utility model provides a kind of rotary steering system with rib return mechanism, comprise: non-rotating cover, rotating shaft, rib, first trip bolt, elastomeric element, second trip bolt, plunger, hydraulic cylinder and hydraulic module, described rib is connected to described non-rotating cover by described rotating shaft, described rib can with described rotating shaft for axis of rotation rotates, described non-rotating putting offers the first groove, described hydraulic cylinder is fixedly installed in described first groove, described plunger is arranged in described hydraulic cylinder, the inwall of described plunger and described plunger cylinder sleeve forms sliding pair, the root edge of described hydraulic cylinder, between the bottom surface of plunger and the end face of described groove, there is accommodation space, hydraulic oil is full of described accommodation space, described hydraulic cylinder outer wall also has outwardly boss, described elastomeric element is tabular, described elastomeric element one end is fixed on described rib by described first trip bolt, the described elastomeric element other end is fixed in the space between described boss and described non-rotating cover by described second trip bolt, described hydraulic module is used for being filled with hydraulic oil in described accommodation space,
When described rib is in initial position, described elastomeric element in the raw or described elastomeric element there is tension force;
When continuing to be filled with hydraulic oil in described accommodation space, along with the increase of described accommodation space volume, described plunger moves upward along described hydraulic cylinder, and to critical localisation, described rib, by jack-up, rotates for axis of rotation with described rotating shaft, opens;
When needing described rib to return back to initial position, discharge the hydraulic oil in described accommodation space, along with the reduction of described accommodation space volume, described plunger moves downward along described hydraulic cylinder, now, described rib returns back to the position fitted like a glove with initial position by the reseting elasticity that described elastomeric element provides.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, when described rib is in initial position, the position residing for the top of described plunger and described critical localisation have a segment distance.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, position corresponding with described first groove on described rib is provided with the second groove, one end of described hydraulic cylinder is fixedly installed in described first groove, and the other end extend in described second groove.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, the free end end of described rib has projection, correspondingly, described non-rotating putting is provided with the limiting stand corresponding with described projection, leaves activity space between described projection and described limiting stand.
Optionally, the aforesaid rotary steering system with rib return mechanism wherein, is round-corner transition between the body of described boss and described rib.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, the position of described first trip bolt is as far as possible near described rotating shaft.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, described hydraulic module is provided with plunger displacement pump, and described plunger displacement pump is used for described hydraulic oil to suck described accommodation space.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, described elastomeric element is leaf spring.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, is sealed and matched between the outer wall of described hydraulic cylinder and described first groove, is sealed and matched between the inwall of described plunger and described hydraulic cylinder.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, plunger has bottom surface boss, the diameter of described bottom surface boss is less than the diameter of the body of described plunger, and described plunger can contact with described first groove floor completely by described bottom surface boss.
By technique scheme, the rotary steering system of what technical solutions of the utility model provided have rib return mechanism at least has following advantages:
What the utility model provided has the rotary steering system of rib return mechanism due to when described rib is in initial position, described elastomeric element in the raw or described elastomeric element there is tension force; When continuing to be filled with hydraulic oil in described accommodation space, along with the increase of described accommodation space volume, described plunger moves upward along described hydraulic cylinder, and to critical localisation, described rib, by jack-up, rotates for axis of rotation with described rotating shaft, opens; When needing described rib to return back to initial position, discharge the hydraulic oil in described accommodation space, along with the reduction of described accommodation space volume, described plunger moves downward along described hydraulic cylinder, now, described rib returns back to the position fitted like a glove with initial position by the reseting elasticity that described elastomeric element provides.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred embodiment, and is not thought restriction of the present utility model.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is a kind of exemplary cross sections of rotary steering system when rib and plunger are all in initial position with rib return mechanism that embodiment of the present utility model provides;
A kind of rotary steering system with rib return mechanism that Fig. 2 is that embodiment of the present utility model provides is in initial position when rib, and plunger is in exemplary cross sections during critical localisation;
A kind of rotary steering system with rib return mechanism that Fig. 3 is that the utility model embodiment provides when rib by jack-up to exemplary cross sections during extreme position;
Fig. 4 is the partial enlargement structural representation of part A in Fig. 1;
Fig. 5 is the partial enlargement structural representation of part B in Fig. 2;
Fig. 6 is the partial enlargement structural representation of C part in Fig. 3.
Detailed description of the invention
The utility model is after in solution prior art, rotary steering system completes a well straightening task, when needs rib is returned to initial position, because rib is just by natural reply, be difficult to the problem being returned to the position fitted like a glove with initial position, provide a kind of rotary steering system with rib return mechanism, with in the intervention by external force, make when needs rib is returned to initial position, the position fitted like a glove with initial position can be returned to, thus more be suitable for practicality.
The technical scheme of the utility model embodiment is for solving the problems of the technologies described above, and general thought is as follows:
See accompanying drawing 1 ~ 6, the embodiment a kind of of the present utility model that the utility model provides provides a kind of rotary steering system with rib return mechanism, comprise: non-rotating cover 1, rotating shaft 2, rib 3, first trip bolt 4, elastomeric element 5, second trip bolt 6, plunger 7, hydraulic cylinder 8 and hydraulic module 9, rib 3 is connected to non-rotating cover 1 by rotating shaft 2, rib 3 can with rotating shaft 2 for axis of rotation rotates, non-rotating cover 1 offers the first groove, hydraulic cylinder 8 is fixedly installed in the first groove, plunger 7 is arranged in hydraulic cylinder 8, plunger 7 forms sliding pair with the inwall of plunger cylinder sleeve 8, the root edge of hydraulic cylinder 8, between the bottom surface of plunger 7 and the end face of groove, there is accommodation space, hydraulic oil 10 is full of accommodation space, hydraulic cylinder 8 outer wall also has outwardly boss 11, elastomeric element 5 is in tabular, elastomeric element one end a is fixed on rib 3 by the first trip bolt 4, elastomeric element other end b is fixed in the space between boss 11 and non-rotating cover 1 by the second trip bolt 6, hydraulic module 9 for being filled with hydraulic oil 10 in accommodation space,
When rib 3 is in initial position, elastomeric element 5 in the raw or elastomeric element 5 there is tension force;
When continuing to be filled with hydraulic oil 10 in accommodation space, along with the increase of accommodation space volume, plunger 7 moves upward along hydraulic cylinder 8, and to critical localisation, rib 3, by jack-up, rotates for axis of rotation with rotating shaft 2, opens;
When needing rib 3 to return back to initial position, hydraulic oil 10 in release accommodation space, along with the reduction of accommodation space volume, plunger 7 moves downward along hydraulic cylinder 8, now, rib 3 returns back to the position fitted like a glove with initial position by the reseting elasticity that elastomeric element 5 provides.
Wherein, label 12 represents import or the outlet of hydraulic oil 10.
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to its detailed description of the invention of the rotary steering system with rib return mechanism, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, such as, A and/or B, concrete is interpreted as: can include A and B simultaneously, can individualism A, also can individualism B, above-mentioned three kinds of arbitrary middle situations can be possessed.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, when rib 3 is in initial position, the position residing for the top of plunger 7 and critical localisation have a segment distance.The object done like this is, when needs are filled with hydraulic oil 10 in accommodation space, when being originally just filled with, the flow velocity of hydraulic oil 10 is also unstable, after arranging this segment distance, when originally hydraulic oil 10 be just filled with, plunger 7 also has a segment distance apart from rib 3, buffering can be provided for plunger 7 within the scope of this segment distance, and be unlikely to make rib 3 to cause shake because of stressed too quickly or unbalance stress.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, position corresponding with the first groove on rib 3 is provided with the second groove, and one end of hydraulic cylinder 8 is fixedly installed in the first groove, and the other end extend in the second groove.Because this first groove is corresponding with the setting position of the second groove, applicable space can be provided for the installation of hydraulic cylinder 8, and ensure that the motion of plunger 7 in hydraulic cylinder 8 is linear reciprocal movement, that is, one of them effect of this hydraulic cylinder 8 is the motion guide for plunger 7.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, the free end end of rib 3 has protruding 15, correspondingly, non-rotating cover 1 is provided with the limiting stand 13 corresponding with projection 15, leaves activity space 14 between protruding 15 and limiting stand 14.Now, when plunger 7 be subject to hydraulic oil 10 effect and by jack-up, and then promote rib 3 with rotating shaft 2 for axle rotate time, the scope of activities of rib 3 is only limitted in the scope of activity space 14, when rib 3 has the trend exceeding activity space 14, its just can due to protruding 15 and limiting stand 13 interaction and be restricted, thus the problem that the activity space avoiding rib 3 is excessive.
Optionally, the aforesaid rotary steering system with rib return mechanism wherein, is round-corner transition between protruding 15 and the body of rib 3.Now, the stress that can reduce between protruding 15 and rib 3 is concentrated, thus the service life with the rotary steering system of rib return mechanism that raising the utility model provides.In addition, in order to further improve the service life with the rotary steering system of rib return mechanism that the utility model provides, can also be one-body molded between protruding 15 and the body of rib 3, now, owing to there is no jointing between protruding 15 and rib 3, therefore, it is possible to further improve the service life with the rotary steering system of rib return mechanism that provides of the utility model.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, the position of the first trip bolt 4 is as far as possible near rotating shaft 2.Now, when rib 3 rotates for axle with rotating shaft 2, because the position of the first trip bolt 4 is as far as possible near rotating shaft 2, the radius of gyration of the first trip bolt 4 is less, therefore, required revolution space of this first trip bolt 4 itself is also less, that is, change the gap needing between the first trip bolt 4 and elastomeric element 5 to reserve comparatively large, easily cause rocking of elastomeric element 5.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, hydraulic module 9 is provided with plunger displacement pump, and plunger displacement pump is used for hydraulic oil 10 to suck accommodation space.Now, hydraulic oil 10 can pump be as accommodation space like a cork by plunger displacement pump, thus actuation plunger 7 does linear movement in hydraulic cylinder 8, and then drives rib 3 with rotating shaft 2 for axle rotation.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, elastomeric element 5 is leaf springs.Because leaf spring just has in prior art, thus the rotary steering system of what the utility model provided have rib return mechanism is easy to realize.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, is sealed and matched between the outer wall of hydraulic cylinder 8 and the first groove, is sealed and matched between the inwall of plunger 7 and hydraulic cylinder 8.Now, hydraulic oil 10 can be avoided by the gap between the outer wall of hydraulic cylinder 8 and the first groove, clearance leakage between plunger 7 and the inwall of hydraulic cylinder 8, not only can cause the leakage of hydraulic oil 10, also can cause the pollution of working environment.
Optionally, the aforesaid rotary steering system with rib return mechanism, wherein, plunger 7 has bottom surface boss, and the diameter of bottom surface boss is less than the diameter of the body of plunger 7, and plunger 7 can contact with the first groove floor completely by bottom surface boss.Now, when plunger 7 is in initial position, the accommodation space of hydraulic oil 10 is accommodation spaces of a sub-circular.If the not accommodation space of this sub-circular, then there will be two kinds of situations, the first situation is, when not being filled with hydraulic oil 10 in the first groove, the bottom surface of plunger 7 and the first groove close contact, now, when being filled with hydraulic oil in the first groove, larger suction active force is needed to realize; The second situation is, plunger 7 is suspended in hydraulic oil 10, and the active force provided due to hydraulic oil 10 is also not exclusively rigidity power, easily causes plunger 7 linearly to shake along hydraulic cylinder 8.
" first ", " second " in above-described embodiment etc. are for distinguishing each embodiment, and do not represent the quality of each embodiment.
Above, it is only preferred embodiment of the present utility model, not do any pro forma restriction to the utility model, any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. one kind has the rotary steering system of rib return mechanism, it is characterized in that, comprise: non-rotating cover, rotating shaft, rib, first trip bolt, elastomeric element, second trip bolt, plunger, hydraulic cylinder and hydraulic module, described rib is connected to described non-rotating cover by described rotating shaft, described rib can with described rotating shaft for axis of rotation rotates, described non-rotating putting offers the first groove, described hydraulic cylinder is fixedly installed in described first groove, described plunger is arranged in described hydraulic cylinder, the inwall of described plunger and described plunger cylinder sleeve forms sliding pair, the root edge of described hydraulic cylinder, between the bottom surface of plunger and the end face of described groove, there is accommodation space, hydraulic oil is full of described accommodation space, described hydraulic cylinder outer wall also has outwardly boss, described elastomeric element is tabular, described elastomeric element one end is fixed on described rib by described first trip bolt, the described elastomeric element other end is fixed in the space between described boss and described non-rotating cover by described second trip bolt, described hydraulic module is used for being filled with hydraulic oil in described accommodation space,
When described rib is in initial position, described elastomeric element in the raw or described elastomeric element there is tension force;
When continuing to be filled with hydraulic oil in described accommodation space, along with the increase of described accommodation space volume, described plunger moves upward along described hydraulic cylinder, and to critical localisation, described rib, by jack-up, rotates for axis of rotation with described rotating shaft, opens;
When needing described rib to return back to initial position, discharge the hydraulic oil in described accommodation space, along with the reduction of described accommodation space volume, described plunger moves downward along described hydraulic cylinder, now, described rib returns back to the position fitted like a glove with initial position by the reseting elasticity that described elastomeric element provides.
2. the rotary steering system with rib return mechanism according to claim 1, is characterized in that, when described rib is in initial position, the position residing for the top of described plunger and described critical localisation have a segment distance.
3. the rotary steering system with rib return mechanism according to claim 1, it is characterized in that, position corresponding with described first groove on described rib is provided with the second groove, one end of described hydraulic cylinder is fixedly installed in described first groove, and the other end extend in described second groove.
4. the rotary steering system with rib return mechanism according to claim 1, it is characterized in that, the free end end of described rib has projection, correspondingly, described non-rotating putting is provided with the limiting stand corresponding with described projection, leaves activity space between described projection and described limiting stand.
5. the rotary steering system with rib return mechanism according to claim 4, is characterized in that, is round-corner transition between the body of described boss and described rib.
6. the rotary steering system with rib return mechanism according to claim 1, is characterized in that, the position of described first trip bolt is as far as possible near described rotating shaft.
7. the rotary steering system with rib return mechanism according to claim 1, is characterized in that, described hydraulic module is provided with plunger displacement pump, and described plunger displacement pump is used for described hydraulic oil to suck described accommodation space.
8. the rotary steering system with rib return mechanism according to claim 1, is characterized in that, described elastomeric element is leaf spring.
9. the rotary steering system with rib return mechanism according to claim 1, is characterized in that, is sealed and matched, is sealed and matched between the inwall of described plunger and described hydraulic cylinder between the outer wall of described hydraulic cylinder and described first groove.
10. the rotary steering system with rib return mechanism according to claim 1, it is characterized in that, plunger has bottom surface boss, the diameter of described bottom surface boss is less than the diameter of the body of described plunger, and described plunger can contact with described first groove floor completely by described bottom surface boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185270.4U CN204677190U (en) | 2015-03-30 | 2015-03-30 | A kind of rotary steering system with rib return mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520185270.4U CN204677190U (en) | 2015-03-30 | 2015-03-30 | A kind of rotary steering system with rib return mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN204677190U true CN204677190U (en) | 2015-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520185270.4U Expired - Fee Related CN204677190U (en) | 2015-03-30 | 2015-03-30 | A kind of rotary steering system with rib return mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN204677190U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986768A (en) * | 2016-05-05 | 2016-10-05 | 中国石油集团渤海钻探工程有限公司 | Pushing mechanism for intelligent drilling tool |
| CN111852450A (en) * | 2020-07-14 | 2020-10-30 | 中国石油集团渤海钻探工程有限公司 | External hinge type active retraction pushing mechanism for BH-VDT tool |
-
2015
- 2015-03-30 CN CN201520185270.4U patent/CN204677190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986768A (en) * | 2016-05-05 | 2016-10-05 | 中国石油集团渤海钻探工程有限公司 | Pushing mechanism for intelligent drilling tool |
| CN111852450A (en) * | 2020-07-14 | 2020-10-30 | 中国石油集团渤海钻探工程有限公司 | External hinge type active retraction pushing mechanism for BH-VDT tool |
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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: 20150930 Termination date: 20180330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |