CN209724246U - A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference - Google Patents
A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference Download PDFInfo
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- CN209724246U CN209724246U CN201920313775.2U CN201920313775U CN209724246U CN 209724246 U CN209724246 U CN 209724246U CN 201920313775 U CN201920313775 U CN 201920313775U CN 209724246 U CN209724246 U CN 209724246U
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- pipe nipple
- valve body
- lost pipe
- thread
- lost
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Abstract
The utility model embodiment discloses a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference, including valve body, anti-lost pipe nipple, stator and the curved shell of universal shaft, the anti-lost pipe nipple upper end is connected with valve body, and the lower end of the anti-lost pipe nipple is connected with stator, the stator lower end connects the curved shell of universal shaft, the end of the valve body is provided with outer cone thread, the upper end of the anti-lost pipe nipple is provided with inside tapered thread, it is connected through a screw thread between the valve body and anti-lost pipe nipple, and is provided with limited step at the screw thread end of outer cone thread bottom surface small end；The utility model passes through the small end in anti-lost pipe nipple inside tapered thread, limited step is arranged in the end of screw-thread ending, it avoids when torque is greater than threaded pre-tightening power, valve body outer cone thread continues precession, anti-lost pipe nipple inside tapered thread size swell, the problem of valve body is subjected to displacement with anti-lost pipe nipple outer circle, and the total directional bearing of drill string is caused to change, and directional angle changes.
Description
Technical field
The utility model embodiment is related to helicoid hydraulic motor technical field, and in particular to a kind of helicoid hydraulic motor of anti-angular difference is anti-lost
Pipe nipple.
Background technique
Helicoid hydraulic motor is the widely used mud motor of oil drilling, mainly include by-pass valve assembly, anti-lost assembly,
Motor assembly, universal axle assembly and driving-shaft assembly, and from top to bottom pass sequentially through the connection composition that is screwed.Universal shaft housing
Mainly there are the straight shell of universal shaft, the curved shell of universal shaft and angle adjustable shell, wherein the curved shell use scope of universal shaft more extensively may be used
More easy to use than angle adjustable shell for straight well, directional well, horizontal well, can directly go into the well use, therefore be answered extensively
With.The anti-lost pipe nipple of helicoid hydraulic motor is to prevent that well accident will not be fallen when the fracture of its underpart position, runs well and plays biography when using
Torque delivery and revolving speed, the effect for conveying drilling fluid simultaneously.
In normal underground work, when drilling technology needs bigger torque, valve body and anti-lost pipe nipple are in the circumferential
It relatively rotates, the trend of valve body pin thread precession inside oriented anti-lost pipe nipple under the action of torque, when torque is greater than screw thread
When pretightning force, valve body pin thread is to anti-lost pipe nipple female thread precession, since connection screw thread is taper thread, makes anti-lost pipe nipple female after precession
It detains at big end cone mouth, interior outside dimension swell.Meanwhile valve body is subjected to displacement with anti-lost pipe nipple outer circle, causes the total of drill string
Directional bearing changes, and directional angle changes.
Utility model content
For this purpose, the utility model embodiment provides a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference, by anti-lost pipe nipple
Limited step is arranged in the end of the small end of inside tapered thread, screw-thread ending, when drilling rotary table torque is greater than valve body and anti-lost pipe nipple spiral shell
When the pretightning force of line connection, valve body outer cone thread is to anti-lost pipe nipple inside tapered thread precession, so that valve body outer cone thread end face is pushed up
On anti-lost pipe nipple inner hole step, to solve in the prior art since valve body outer cone thread continues precession, anti-lost pipe nipple inner cone spiral shell
Directional angle offset issue caused by line size swell.
To achieve the goals above, the embodiments of the present invention provides the following technical solutions:
A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference, including valve body, anti-lost pipe nipple, stator and the curved shell of universal shaft, institute
It states anti-lost pipe nipple upper end to connect with valve body, and the lower end of the anti-lost pipe nipple is connected with stator, the stator lower end connection is universal
The curved shell of axis.
The end of the valve body is provided with outer cone thread, and the upper end of the anti-lost pipe nipple is provided with inside tapered thread, the valve
It is connected through a screw thread between body and anti-lost pipe nipple, and is provided with limiting stand at the screw thread end of inside tapered thread bottom surface small end
Rank.
As a kind of preferred embodiment of the utility model, the limited step annular is mounted on the inner wall of inside tapered thread, and
The intermediate of the limited step forms through-hole, and the bottom of the outer cone thread offers inside groove, sliding in the groove
The orientation fixture block to match with shape of through holes is installed.
As a kind of preferred embodiment of the utility model, the depth of the groove is consistent with the orientation length of fixture block, described
It is free to slide along groove inner wall to orient fixture block.
As a kind of preferred embodiment of the utility model, the shape of through holes can be rectangle, triangle or polygon
In any one.
As a kind of preferred embodiment of the utility model, the junction of the valve body and outer cone thread is provided with positioning table
Rank.As a kind of preferred embodiment of the utility model,.
The embodiments of the present invention has the advantages that
It is connected between the valve body and stator of the utility model by anti-lost pipe nipple, avoids and fall well and downhole safety accident
Occur；It is provided with limited step at the screw thread end of the bottom surface small end of the inside tapered thread of anti-lost pipe nipple simultaneously, when drilling well turns
When disk torque is greater than the pretightning force that valve body is connect with anti-lost short-section thread, valve body outer cone thread is revolved to anti-lost pipe nipple inside tapered thread
Into avoiding valve body outer cone thread and continue to revolve so that valve body outer cone thread end face is withstood on the limited step in anti-lost pipe nipple
Into causing at the larger end cone mouth in anti-lost pipe nipple inside tapered thread bottom surface, interior outside dimension swell is also avoided outside valve body and anti-lost pipe nipple
Circle relatively rotates, and causes the total directional bearing of drill string to change, directional angle changes.
Detailed description of the invention
It, below will be to reality in order to illustrate more clearly of the embodiments of the present invention or technical solution in the prior art
It applies mode or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that attached in being described below
Figure is only exemplary, for those of ordinary skill in the art, without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the utility model enforceable qualifications, therefore does not have technology
On essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the utility model institute energy
Under the effect of generation and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain the model that can cover
In enclosing.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the inside tapered thread bottom surface structure schematic diagram of the utility model；
Fig. 3 is the outer cone thread bottom surface structure schematic diagram of the utility model.
In figure:
1- valve body；The anti-lost pipe nipple of 2-；3- stator；The curved shell of 4- universal shaft；
101- outer cone thread；102- groove；103- orients fixture block；104 positioning steps；
201- inside tapered thread；202- limited step；203- through-hole.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily, it is clear that described embodiment is
The utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the utility model protection
Range.
As shown in Figure 1 to Figure 3, the utility model provides a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference, including valve body
1, anti-lost pipe nipple 2, stator 3 and the curved shell 4 of universal shaft, anti-lost 2 upper end of pipe nipple and valve body 1 connect, and the anti-lost pipe nipple 2
Lower end and stator 3 connect, 3 lower end of stator connects the curved shell 4 of universal shaft；
It can be connected by screw thread between above-mentioned anti-lost pipe nipple 2 and stator 3 and between stator 3 and the curved shell 4 of universal shaft
It connects.
It is connected between the valve body 1 and stator 3 of the utility model by anti-lost pipe nipple 2, avoids and fall well and downhole safety thing
Therefore generation.
The end of the valve body 1 is provided with outer cone thread 101, and the upper end of the anti-lost pipe nipple 2 is provided with inside tapered thread
201, it is connected through a screw thread between the valve body 1 and anti-lost pipe nipple 2, and the screw thread of 101 bottom surface small end of the inside tapered thread is most
Limited step 202 is provided at head.
The utility model is provided with limit at the screw thread end of the bottom surface small end of the inside tapered thread 201 of anti-lost pipe nipple 2
Step 202, when drilling rotary table torque is greater than the pretightning force that valve body 1 is threadedly coupled with anti-lost pipe nipple 2, the outer cone thread of valve body 1
101 to anti-lost 2 inside tapered thread of pipe nipple, 201 precession, so that 1 outer cone thread of valve body, 101 end face withstands on the limit in anti-lost pipe nipple 2
On step 202.
Herein, the junction of the valve body 1 and outer cone thread 101 can be provided with positioning step 104, when valve body 1
Outer cone thread 101 to when anti-lost 2 201 precession of inside tapered thread of pipe nipple, the end face of anti-lost pipe nipple 2 withstands on the positioning of 1 end of valve body
On step 104, at this point, the screw thread both ends that valve body 1 is connect with anti-lost pipe nipple 2 become double locating structure, 1 outer cone spiral shell of valve body is avoided
Line 101, which continues precession, to be caused at the larger end cone mouth in anti-lost 2 inside tapered thread of pipe nipple, 201 bottom surface, and interior outside dimension swell also avoids valve
Body 1 relatively rotates with anti-lost 2 outer circle of pipe nipple, and the total directional bearing of drilling tool is caused to change, directional angle hair
Changing.
Further, the limited step 202 can be block structure, and one or more is distributed in inside tapered thread 201
On inner wall, for stopping the continuation precession of 1 outer cone thread 101 of valve body.
The limited step can be mounted on the inner wall of inside tapered thread 201, and the centre of the limited step 202 with annular
Through-hole 203 is formed, the bottom of the outer cone thread 101 offers inside groove 102, is slidably fitted in the groove 102
The orientation fixture block 103 to match with 203 shape of through-hole.
Specifically, sliding slot can be opened up in the inner wall of groove 102, orientation fixture block 103 can be free to slide along 102 inner wall of groove,
The depth of the groove 102 is consistent with the orientation length of fixture block 103, is slid completely into orientation fixture block 103 in groove.
When drilling rotary table torque is greater than the pretightning force that valve body 1 is threadedly coupled with anti-lost pipe nipple 2,1 outer cone thread 101 of valve body
To anti-lost 2 inside tapered thread of pipe nipple, 201 precession, and the through-hole of limited step 202 is in rotary course and orientation 103 position one of fixture block
When cause, orientation fixture block 103 is protruded into groove 102 by gravity and is stuck in through-hole 203.
Therefore, 203 shape of through-hole can be any one in rectangle, triangle or polygon, once orientation
Fixture block 103 is caught in through-hole 203, and valve body 1 will be unable to continue to rotate, and further avoids the change of directional bearing and angle.
In addition, the valve body 1 and anti-lost pipe nipple 2 of the utility model are during the installation process, anti-lost pipe nipple 2 can be placed in top and
Valve body 1 is placed below, orients fixture block 103 at this time and is protruded into groove 102 by gravity, valve body 1 and anti-lost pipe nipple 2 can be according to phases
The pretightning force precession answered, orientation fixture block 103 do not generate interference.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (5)
1. a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference, including valve body (1), anti-lost pipe nipple (2), stator (3) and universal shaft are curved
Shell (4), which is characterized in that anti-lost pipe nipple (2) upper end and valve body (1) connection, and the lower end of the anti-lost pipe nipple (2) and
Stator (3) connection, stator (3) lower end connect the curved shell of universal shaft (4)；
The end of the valve body (1) is provided with outer cone thread (101), and the upper end of the anti-lost pipe nipple (2) is provided with inside tapered thread
(201), it is connected through a screw thread between the valve body (1) and anti-lost pipe nipple (2), and the inside tapered thread (201) bottom surface small end
The screw thread end at be provided with limited step (202).
2. a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference according to claim 1, which is characterized in that the limited step
(202) annular is mounted on the inner wall of inside tapered thread (201), and the intermediate of the limited step (202) forms through-hole (203), institute
The bottom for stating outer cone thread (101) offers inside groove (102), is slidably fitted in the groove (102) and through-hole
(203) the orientation fixture block (103) that shape matches.
3. a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference according to claim 2, which is characterized in that the groove
(102) depth is consistent with the orientation length of fixture block (103), and the orientation fixture block (103) is along groove (102) inner wall free skating
It is dynamic.
4. a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference according to claim 2, which is characterized in that the through-hole
(203) shape can be any one in rectangle, triangle or polygon.
5. a kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference according to claim 1, which is characterized in that the valve body (1)
The junction of outer cone thread (101) is provided with positioning step (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313775.2U CN209724246U (en) | 2019-03-13 | 2019-03-13 | A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920313775.2U CN209724246U (en) | 2019-03-13 | 2019-03-13 | A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724246U true CN209724246U (en) | 2019-12-03 |
Family
ID=68686133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920313775.2U Active CN209724246U (en) | 2019-03-13 | 2019-03-13 | A kind of anti-lost pipe nipple of helicoid hydraulic motor of anti-angular difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724246U (en) |
-
2019
- 2019-03-13 CN CN201920313775.2U patent/CN209724246U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201012 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. Address before: 300 457 days, 16 floors, PetroChina Tianjin Building, 83 Second Avenue, Binhai New Area Economic and Technological Development Zone, Baodi District, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: Bohai Petroleum Equipment (Tianjin) Zhongcheng Machinery Manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right |