CN205135443U - Drilling string slewing device - Google Patents
Drilling string slewing device Download PDFInfo
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- CN205135443U CN205135443U CN201520997824.0U CN201520997824U CN205135443U CN 205135443 U CN205135443 U CN 205135443U CN 201520997824 U CN201520997824 U CN 201520997824U CN 205135443 U CN205135443 U CN 205135443U
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- internal spline
- external splines
- mandrel
- swivel head
- drill string
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Abstract
The utility model discloses a drilling string slewing device, including last rotating head and lower rotating head, wherein to go up the rotating head and include top connection and connector, lower rotating head includes dabber, lower mandrel and lower clutch, and the mutual UNICOM's centralize pipe of upper and lower rotating head is gone up the rotating head and is still included external splines axle and the spring of locating external splines off -axial side, and the outside of this external splines axle is equipped with first external splines, lower mandrel's upper end be equipped with with the same second external splines of the first external splines shape number of teeth, down the rotating head is still including the internal spline body of locating the lower mandrel outside and the piston cylinder of locating internal spline body below, wherein the internal portion of internal spline be equipped with with first, the equal matched with internal spline of second external splines, and the spring below is located to this internal spline body, piston cylinder upper end inboard is equipped with the uide pin, be equipped with on the lower mandrel excircle with uide pin complex switching -over groove. Through pressing a lot of that pressure release just can implementation tool " to close " or the switching of " branch " function to suppressing in the instrument center tube, easy operation conveniently.
Description
Technical field
The utility model relates to a kind of drill string fastening means, refers in particular to a kind of drill string rotating equipment.
Background technology
Drill string is the general name of the steel pipe column of below more than drill bit, water tap.There is certain defect in traditional drill string tool, due to upper drilling string and lower drilling string synchronous axial system, is hampered in lower drilling string, when meeting card, the resistance of drill string and friction are comparatively large, cause drill string greatly helically twisted, make troubles to the rotation of drill string.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of drill string rotating equipment.
Drill string rotating equipment, comprise swivel head and lower swivel head, wherein go up swivel head and comprise top connection and connector, lower swivel head comprises mandrel, lower mandrel and lower contact, the mutual UNICOM of upper and lower swivel head forms central tube, described upper swivel head also comprises to be connected with connector male splined shaft and the spring be located at outside male splined shaft, and the outside of this male splined shaft is provided with the first external splines; The upper end of described lower mandrel is provided with second external splines identical with the first external splines shape number of teeth; Described lower swivel head also comprises the internal spline body be located at outside lower mandrel and the piston rod be located at below internal spline body, and wherein internal spline body inside is provided with the internal spline all matched with first, second external splines, and this internal spline body is located at below described spring; Be provided with guide finger inside described piston rod upper end, lower mandrel cylindrical is provided with the reversing groove coordinated with guide finger.
Wherein, outside, described upper mandrel upper end is connected with bearing support, and the upper and lower two ends of bearing support are respectively provided with a bearing; Bearing support and bearing are positioned at top connection and connector connects the rear chamber formed, and rubs, rub outside bearing with top connection lower end lumen orifice inside bearing with upper mandrel cylindrical.
Wherein, described reversing groove is circumferentially wavy, comprise locating slot and long chute, this locating slot and long chute are arranged downwards vertically, the two alternate intervals is arranged, and be connected by guiding skewed slot, when guide finger is placed in locating slot, the internal spline of internal spline body coordinates with the first external splines of male splined shaft; When guide finger is placed in guiding skewed slot, spring is in compressive state; When guide finger is placed in long chute bottom, the internal spline of internal spline body is just separated with the first external splines of male splined shaft.
Wherein, circumferentially offer some through holes in described piston rod, be equipped with shear pin in this through hole, one end of this shear pin penetrates in lower mandrel.
Wherein, the outside of described male splined shaft is provided with spring strut, and described spring is located in this spring strut.
Wherein, the top being positioned at the bearing of bearing support upper end is provided with an oil storage bag.
Drill string rotating equipment tool is connected in String, and the drill string on the top that can make tool rotates separately independent of the drill string of bottom.Be hampered in lower drilling string, meet card time, can eliminate upper drilling string rotate time resistance and friction, alleviate the helically twisted of drill string.Tool interior is provided with " pressure activation clutch ", by forming certain pressure reduction to building the pressure in tool focus pipe, the shear pin of cutting tool internal preset, makes the upper and lower two parts of instrument recombine formation synchronous rotary, the moment of torsion of top drill string is delivered to below drill string.By just can repeatedly " conjunction " of implementation tool or the switching of " dividing " function to the pressure release that builds the pressure in tool focus pipe, simple to operation.And extra sling load or the thrust of 6 tons can be born.In addition, rotated by bearing, contribute to eliminating frictional force, prevent mandrel wear.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of drill string rotating equipment.
Fig. 2 is the part-structure schematic diagram of drill string rotating equipment.
Fig. 3 is the structural representation of described bearing support and bearing fit part.
Fig. 4 is that the reversing groove of described lower mandrel is along outer round surface expanded view.
Detailed description of the invention
Detailed description of the invention of the present utility model is as follows:
With reference to Fig. 1, drill string rotating equipment, comprises swivel head and lower swivel head, and wherein go up swivel head and comprise top connection 1 and connector 7, lower swivel head comprises mandrel 2, lower mandrel 13 and lower contact 17, and the mutual UNICOM of upper and lower swivel head forms central tube 19.
With reference to Fig. 1, Fig. 2 and Fig. 3, outside, upper mandrel 2 upper end is connected with bearing support 5, and bearing support about 5 two ends are respectively provided with a bearing 4,6; Bearing support 5 and bearing 4,6 are positioned at the chamber that top connection 1 and connector 7 connect rear formation, with the friction of upper mandrel 2 cylindrical inside bearing 4,6, rub outside bearing 4,6 with top connection 1 lower end lumen orifice.The top being positioned at the bearing 4 of bearing support upper end is provided with an oil storage bag 3, and being convenient to provides lubricating auxiliary agent to bearing 4,6.Connector 7 is for connecting top connection 1 and male splined shaft 9, the lower end of this male splined shaft 9 is with the first external splines, the upper end of described lower mandrel 13 is provided with second external splines identical with the first external splines shape number of teeth, be provided with internal spline body 12 outside lower mandrel 13, this internal spline body 12 inside is provided with the internal spline all matched with first, second external splines.The outside of male splined shaft 9 is provided with spring strut 8, is wherein provided with spring 10, and this spring 10 is positioned at the outside of internal spline body 12.Internal spline body 12 lower end is connected with a piston rod 16, and offers the liquid-inlet 21 that liquid can be made to flow into piston rod in lower mandrel 13.Circumferentially offer some through holes 150 in piston rod 16, be equipped with a shear pin 15 in each through hole 150, one end of this shear pin 15 penetrates in lower mandrel 13.
With reference to Fig. 2 and Fig. 4, piston rod 16 is provided with guide finger 14 inside upper end, and lower mandrel 13 cylindrical is provided with the reversing groove 20 coordinated with guide finger 14.This reversing groove 20 is circumferentially wavy, comprise locating slot 200 and long chute 201, this locating slot 200 and long chute 201 are arranged downwards vertically, the two alternate intervals is arranged, and be connected by guiding skewed slot 202, when guide finger 14 is placed in locating slot 200, the internal spline of internal spline body 12 coordinates with the first external splines of male splined shaft 9; When guide finger 14 is placed in guiding skewed slot 202, spring 10 is in compressive state; When guide finger 14 is placed in long chute 201 bottom, the internal spline of internal spline body 12 is just separated with the first external splines of male splined shaft 9.
With reference to Fig. 1, Fig. 2 and Fig. 3, when instrument dispatches from the factory, on instrument, swivel head can rotate separately relative to lower swivel head.The initial pressure value needed for unblock " clutch " is set by the shear pin 15 installing varying number.Guide finger 14 initial position is positioned at the bottom of long chute 201, when needing the upper and lower swivel head of instrument to be combined to make upper swivel head moment of torsion be delivered to lower swivel head formation synchronous rotary state, only need by the formation pressure reduction that builds the pressure in tool focus pipe 19, cut off shear pin 15, up by hydraulic drive piston cylinder 16, the male splined shaft 9 of the internal spline body 12 in lower swivel head in upper swivel head is combined; In central tube 19 after pressure release, the built-in guide finger 14 of instrument rests in the locating slot 200 on reversing groove 20, and make male splined shaft 9 and internal spline body 12 be in the state of combination all the time, top moment of torsion can be delivered to bottom by instrument.If now after the upper and lower swivel head of instrument combines, also wish that instrument is separated again, again rotate separately independent of lower swivel head to make upper swivel head, so only need again to build the pressure in central tube certain hour, guide finger 14 is made to rise in guiding skewed slot 202, carry out pressure release again, internal spline is just separated with the first external splines of male splined shaft 9 under spring force, and upper and lower swivel head " divides " to be opened.After shear pin being cut off when building the pressure for the first time, namely instrument " clutch " is activated, after suppressing pressure discharge operations at every turn, all can make tool from " conjunction " state and switch to " dividing " state, or " dividing " state switches to " conjunction " state, realize the repeatedly synchronous rotary of drill string top and the bottom or be separated the function rotated separately.
Foregoing description has illustrated explanation and the description of utility model.It is not in order to the utility model is restricted to disclosed form and mode.According to above mode, can revise accordingly or change.It is in order to principle of the present utility model and practicality thereof are described better that example is discussed, thus utilizes the utility model to carry out various amendment and meet other specific demand.All such modifications and change are when understanding according to fair and legal right, and according to accessory claim, these modifications and variations all belong in scope of the present utility model.
Claims (6)
1. drill string rotating equipment, comprise swivel head and lower swivel head, wherein go up swivel head and comprise top connection and connector, lower swivel head comprises mandrel, lower mandrel and lower contact, the mutual UNICOM of upper and lower swivel head forms central tube, it is characterized in that: described upper swivel head also comprises to be connected with connector male splined shaft and the spring be located at outside male splined shaft, and the outside of this male splined shaft is provided with the first external splines; The upper end of described lower mandrel is provided with second external splines identical with the first external splines shape number of teeth; Described lower swivel head also comprises the internal spline body be located at outside lower mandrel and the piston rod be located at below internal spline body, and wherein internal spline body inside is provided with the internal spline all matched with first, second external splines, and this internal spline body is located at below described spring; Be provided with guide finger inside described piston rod upper end, lower mandrel cylindrical is provided with the reversing groove coordinated with guide finger.
2. drill string rotating equipment as claimed in claim 1, is characterized in that: outside, described upper mandrel upper end is connected with bearing support, and the upper and lower two ends of bearing support are respectively provided with a bearing; Bearing support and bearing are positioned at top connection and connector connects the rear chamber formed, and rubs, rub outside bearing with top connection lower end lumen orifice inside bearing with upper mandrel cylindrical.
3. drill string rotating equipment as claimed in claim 1, it is characterized in that: described reversing groove is circumferentially wavy, comprise locating slot and long chute, this locating slot and long chute are arranged downwards vertically, the two alternate intervals is arranged, and be connected by guiding skewed slot, when guide finger is placed in locating slot, the internal spline of internal spline body coordinates with the first external splines of male splined shaft; When guide finger is placed in guiding skewed slot, spring is in compressive state; When guide finger is placed in long chute bottom, the internal spline of internal spline body is just separated with the first external splines of male splined shaft.
4. drill string rotating equipment as claimed in claim 1, it is characterized in that: circumferentially offer some through holes in described piston rod, be equipped with shear pin in this through hole, one end of this shear pin penetrates in lower mandrel.
5. drill string rotating equipment as claimed in claim 1, it is characterized in that: the outside of described male splined shaft is provided with spring strut, described spring is located in this spring strut.
6. drill string rotating equipment as claimed in claim 2, is characterized in that: the top being positioned at the bearing of bearing support upper end is provided with an oil storage bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997824.0U CN205135443U (en) | 2015-12-03 | 2015-12-03 | Drilling string slewing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520997824.0U CN205135443U (en) | 2015-12-03 | 2015-12-03 | Drilling string slewing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135443U true CN205135443U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520997824.0U Active CN205135443U (en) | 2015-12-03 | 2015-12-03 | Drilling string slewing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205135443U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382104A (en) * | 2016-12-02 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Spline anti-suppression and drag-reduction structure of drill column rotating head and method |
| CN108868604A (en) * | 2018-05-31 | 2018-11-23 | 西南石油大学 | A kind of separation of mechanical underground torque and tool for transmitting |
| CN109944554A (en) * | 2019-04-08 | 2019-06-28 | 无锡锡钻地质装备有限公司 | A kind of combined drill rod |
-
2015
- 2015-12-03 CN CN201520997824.0U patent/CN205135443U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382104A (en) * | 2016-12-02 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Spline anti-suppression and drag-reduction structure of drill column rotating head and method |
| CN108868604A (en) * | 2018-05-31 | 2018-11-23 | 西南石油大学 | A kind of separation of mechanical underground torque and tool for transmitting |
| CN109944554A (en) * | 2019-04-08 | 2019-06-28 | 无锡锡钻地质装备有限公司 | A kind of combined drill rod |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |