CN207333712U - Dynamic sealing assembly - Google Patents
Dynamic sealing assembly Download PDFInfo
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- CN207333712U CN207333712U CN201721305845.7U CN201721305845U CN207333712U CN 207333712 U CN207333712 U CN 207333712U CN 201721305845 U CN201721305845 U CN 201721305845U CN 207333712 U CN207333712 U CN 207333712U
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- packing element
- sealing assembly
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Abstract
A kind of dynamic sealing assembly, including packing element, the first jam-packed mechanism and the second jam-packed mechanism are disclosed herein；Packing element is arranged in the ring cavity formed between stator madial wall and output shaft, packing element first end is set on the outside of fixed shell, and the first jam-packed mechanism includes for the first jam-packed ring of jam-packed packing element first end and the first adjusting part for adjusting the first jam-packed ring jam-packed power；Packing element second end is set on the outside of armature spindle, and the second jam-packed mechanism includes for the second jam-packed ring of jam-packed packing element second end and the second adjusting part for adjusting the second jam-packed ring jam-packed power.
Description
Technical field
This application involves but be not limited to oil well logging equipment technical field, especially a kind of dynamic sealing assembly.
Background technology
Measurement while drilling (Measurement While Drilling：MWD) system can measure hole deviation, direction of deflection, well
The parameters such as lower torque, drill bit load-bearing, natural gamma, resistivity.With the development of petroleum works, in the 1980s, original
Some parameter sensors for formation evaluation are added on the basis of measurement-while-drilling system MWD, such as compensation al-lateral resistivity,
Natural gamma, orientation neutron density, sound wave, compensated neutron density etc.；The system being made of these instruments is commonly referred to as surveying with brill
Well system (Logging While Drilling：LWD).MWD and LWD is to complete wide-angle and horizontal well drilling, real-time well site
Data acquisition, explanation, decision-making in-situ and the key technology for instructing completion geologic steering drilling, it combines well logging, well logging, brill
A variety of subject technologies such as well and reservoir description, can simplify drillng operation program, cost-effective, improve drilling well precision, adjust drilling well
Design and raising recovery ratio.Connector for logging while drilling has become the necessary component of drillng operation.
The transmission mode of down-hole information has the several ways such as mud-pulse, electromagnetic wave, sound wave, drill string and vibration.Underground
Carrier, delivery means, transmission rate and its signal on ground of information transmission receive, signal processing and decoding are crucial skills
Art.Down-hole information transmission mode is the important component of MWD.So far, mud-pulse transmission technology is that application is the widest
General, mud-pulse transmission is divided into positive pulse, negative pulse and continuous wave pulse technique again.Mud pulse generator is that mud-pulse passes
A kind of down-hole information tool for transmitting in transferring technology.Mud positive pulse transmission signal is to be used in current MWD most generally, most stable
A kind of reliable method.Positive pulse is generally realized by needle-valve, but its transmission rate is relatively low, the data volume of transmission per unit of time compared with
It is small, constrain the mounting quantity of downhole instrument.In recent years, valve plate-type slurry pulsator be because can not only realize positive pulse, but also can be with
Realize continuous two kinds of pulse signals of wave impulse, increasingly focused on, when valve plate-type pulser sends out continuous wave signal, due to
Its carrier frequency is high, and Different Modulations, the down-hole pressure signals such as frequency modulation, phase modulation and frequency modulation phase modulation combination can be used special
Sign is obvious, and transmission rate is high.
Connector for logging while drilling generally uses modularized design, and each pipe nipple has standalone feature, shear valve slurry pulsator
And an independent pipe nipple, valve block, by shearing the fluid in drill string, using the water hammer effect of fluid, produce mud in underground
Raw pressure fluctuation.In addition, because requirement of the drilling engineering to downhole data uploading rate is higher and higher, in order to transmit pulser
Speed is higher, it is necessary to there is higher fundamental frequency, and fundamental frequency height can be that the realization of more modulation systems provides safeguard.Such shear valve
Pulser just needs high frequency to block fluid, to lift carrier frequency.
In order to meet data transmission bauds and drilling engineering needs, instrument adapts to underground high temperature, the operating mode of high pressure, shear valve
Pulser will take into full account following dynamic sealing and pressure compensation mechanism from structure.However, existing pressure compensation mechanism exists
There is the defects of cumbersome for installation and stability is poor, it is impossible to effectively meet the actual needs, need to frequently carry out inspection operation.
Utility model content
The technical problem that the application solves is to provide a kind of dynamic sealing assembly, can effectively overcome existing in the prior art
Defect, can effectively improve the installation effectiveness and connection structure stability of packing element.
In order to solve the above technical problems, this application provides a kind of dynamic sealing assembly, including packing element, the first jam-packed mechanism and
Second jam-packed mechanism；The packing element is arranged in the ring cavity formed between stator madial wall and output shaft；
The packing element first end is set on the outside of fixed shell, and the first jam-packed mechanism includes being used for jam-packed packing element first
The first jam-packed ring at end and the first adjusting part for adjusting the first jam-packed ring jam-packed power；
The packing element second end is set on the outside of armature spindle, and the second jam-packed mechanism includes being used for jam-packed packing element second end
The second jam-packed ring and for adjust the second jam-packed ring jam-packed power the second adjusting part.
Above-mentioned dynamic sealing assembly, can also have following features,
The first jam-packed ring set is located on the outside of fixed shell, and the first end of the first jam-packed ring is provided with extruding packing element
First jam-packed groove of first end, the second end of the first jam-packed ring are connected with the first adjusting part.
Above-mentioned dynamic sealing assembly, can also have following features,
First adjusting part includes one or more first regulation rings, and first regulation ring is set in fixed shell
Region between the second end of the shoulder in outside and the first jam-packed ring.
Above-mentioned dynamic sealing assembly, can also have following features,
First regulation ring includes two semicircular rings, and described two semicircular ring docking form complete circle.
Above-mentioned dynamic sealing assembly, can also have following features,
The first jam-packed groove is cone tank, and internal diameter of the cone tank close to the first end endface of the first jam-packed ring is big
Internal diameter in first end endface of the cone tank away from the first jam-packed ring.
Above-mentioned dynamic sealing assembly, can also have following features,
The internal diameter of first regulation ring is equal to area between the shoulder on the outside of fixed shell and the second end of the first jam-packed ring
The outside diameter in domain.
Above-mentioned dynamic sealing assembly, can also have following features,
The second jam-packed ring set is located on the outside of armature spindle, and the first end of the second jam-packed ring is provided with extruding packing element the
The second jam-packed groove at two ends, the second end of the second jam-packed ring are connected with the second adjusting part.
Above-mentioned dynamic sealing assembly, can also have following features,
Second adjusting part includes one or more second regulation rings.
Above-mentioned dynamic sealing assembly, can also have following features,
Second regulation ring includes two semicircular rings.
Above-mentioned dynamic sealing assembly, can also have following features,
The second jam-packed groove is cone tank.
The application above-mentioned technical proposal has the advantages that：
Compared with the prior art, the application can pass through the setting of above-mentioned first jam-packed ring and the first adjusting part, Neng Goushi
The convenient jam-packed operation of existing packing element first end, above-mentioned packing element first end are fixed on by way of jam-packed on the outside of fixed shell, tool
There are higher structural stability and higher installation effectiveness；Correspondingly, above-mentioned second jam-packed ring and the second adjusting group can be passed through
The setting of part, can realize the convenient jam-packed operation of packing element second end, and above-mentioned packing element second end is fixed also by the mode of jam-packed
On the outside of armature spindle, equally there is higher structural stability and higher installation effectiveness.
Other features and advantage will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the utility model embodiment.The purpose of the application and other advantages can by
Specifically noted structure is realized and obtained in specification, claims and attached drawing.
Brief description of the drawings
Attached drawing is used for providing further understanding technical scheme, and a part for constitution instruction, with this
The embodiment of application is used for the technical solution for explaining the application together, does not form the limitation to technical scheme.
Fig. 1 is the structure diagram of the utility model embodiment one；
Fig. 2 is the application schematic diagram of the first jam-packed mechanism of the utility model embodiment one；
Fig. 3 is the application schematic diagram of the second jam-packed mechanism of the utility model embodiment one；
Illustrate：
1- fixed shells, 2- armature spindles, 3- the first jam-packed rings, the first adjusting parts of 4-, 5- packing elements, 51- packing element first ends,
52- packing element second ends, 6- the second jam-packed rings, the second adjusting parts of 7-, 8- the first jam-packed grooves, 9- the second jam-packed grooves.
Embodiment
Embodiments herein is described in detail below in conjunction with attached drawing.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment one：
As shown in Figure 1, the utility model embodiment one provides a kind of dynamic sealing assembly, including packing element 5, the first jam-packed machine
Structure and the second jam-packed mechanism；Wherein, above-mentioned packing element first end is set in the outside of fixed shell 1, and the first jam-packed mechanism includes being used for
First jam-packed ring 4 of jam-packed packing element first end and the first adjusting part 3 for adjusting 4 jam-packed power of the first jam-packed ring；Packing element
Two end caps are located at the outside of armature spindle 2, and the second jam-packed mechanism includes for the second jam-packed ring 6 of jam-packed packing element second end and for adjusting
Save the second adjusting part 7 of 6 jam-packed power of the second jam-packed ring.
Wherein, packing element 5 is arranged in the ring cavity formed between stator madial wall and the outside of output shaft 2, the interior table of packing element 5
Cavity injection fluid between face and fixed shell 1, armature spindle 2, the outer surface of packing element 5 is directly contacted with drilling fluid, to meet
Actual production demand.
In concrete operations, packing element can be realized by the setting of above-mentioned first jam-packed ring 4 and the first adjusting part 3
The convenient jam-packed operation of one end, above-mentioned packing element first end are fixed on the outside of fixed shell 1 by way of jam-packed, had higher
Structural stability and higher installation effectiveness；Correspondingly, can setting by above-mentioned second jam-packed ring 6 and the second adjusting part 7
Put, can realize the convenient jam-packed operation of packing element second end, above-mentioned packing element second end is fixed on rotor also by the mode of jam-packed
The outside of axis 2, equally has higher structural stability and higher installation effectiveness.
As shown in Fig. 2, the first jam-packed ring 4 is set in the outside of fixed shell 1, the first end of the first jam-packed ring 4 is provided with crowded
First jam-packed groove 8 of moulding cylinder first end 51, the second end of the first jam-packed ring 4 are connected with the first adjusting part 3.
In concrete operations, the first jam-packed ring 4 and packing element first end 51 can be respectively sleeved to the outside of fixed shell 1, packing element
First end 51 is set in the region that 1 shell of fixed shell leans on close end, and the first jam-packed ring 4 is set in the region away from end；Into
And slidably the first jam-packed ring 4 to predeterminated position, such as the first jam-packed groove 8 contacts the present position of packing element first end 51；Then,
The region that first adjusting part 3 can be set between the shoulder and the first jam-packed ring 4 in the outside of fixed shell 1, the first adjusting group
The insertion of part 3 can drive the first jam-packed ring 4 to continue to slide, so that the 8 jam-packed packing element first end of the first jam-packed groove of the first jam-packed ring 4
51, and then can realize the jam-packed attended operation of packing element first end 51.
In order to effectively improve the convenient adjusting of the first adjusting part 3；In the present embodiment, above-mentioned first adjusting part 3
Including one or more first regulation rings, the first regulation ring be set in the outside of fixed shell 1 shoulder and the first jam-packed ring 4 the
Region between two ends；In concrete operations, being used cooperatively by various sizes of first regulation ring, it is different degrees of to realize
Jam-packed, to realize the jam-packed power controllability of packing element first end 51.
In the present embodiment, above-mentioned first regulation ring includes two semicircular rings, and two semicircular ring docking form complete circle.Tool
During gymnastics is made, the setting of above-mentioned two semicircular ring, can effectively ensure that easily installation and adjustment operate, and then can ensure dynamic close
The integral installation efficiency of sealing assembly；Above-mentioned two semicircular ring may be selected to complete by a complete annulus wire cutting, once add
Work is molded, time saving and energy saving.In addition, the internal diameter of above-mentioned first regulation ring is equal to the shoulder and the first jam-packed ring 4 in the outside of fixed shell 1
Second end between region outside diameter, the setting of above-mentioned preferred size, can effectively ensure that the first regulation ring and fixing shell it
Between blind-mate, and then connective stability can be effectively improved.
In order to effectively improve the connective stability of packing element；In the present embodiment, above-mentioned first jam-packed groove 8 is cone tank,
Internal diameter of the cone tank close to the first end endface of the first jam-packed ring 4 is more than first end end of the cone tank away from the first jam-packed ring 4
Internal diameter at face.In concrete operations, the gradual jam-packed behaviour of packing element first end 51 by the setting of above-mentioned cone tank, can be realized
Make, can effectively ensure that the firm attended operation of packing element.
As shown in figure 3, the second jam-packed ring 6 is set in the outside of armature spindle 2, the first end of the second jam-packed ring 6 is provided with extruding
Second jam-packed groove 9 of packing element second end 52, the second end of the second jam-packed ring 6 are connected with the second adjusting part 7.
In concrete operations, the second jam-packed ring 6 and packing element second end 52 can be respectively sleeved to the outside of armature spindle 2, second squeezes
Tight ring 6 is set in side of the packing element second end 52 away from packing element first end 51；And then the second jam-packed ring 6 is slided to predeterminated position,
Such as the position of the second jam-packed groove 9 contact packing element second end 52；Then, the second adjusting part 7 can be set in the second jam-packed
Side of the ring 6 away from packing element, the insertion of the second adjusting part 7 can drive the second jam-packed ring 6 to continue to slide, so that the second jam-packed ring
69 jam-packed packing element second end 52 of the second jam-packed groove, and then can realize the jam-packed attended operation of packing element second end 52.
In order to effectively improve the convenient adjusting of the second adjusting part 7, above-mentioned second adjusting part 7 includes one or more
A second regulation ring；In order to improve the connective stability of the second regulation ring, the internal diameter of above-mentioned second regulation ring, which is equal to, to be arranged
There is 2 outside diameter of armature spindle at the second regulation ring；It is above-mentioned in order to further improve the stability of the connection of packing element second end 52
Second jam-packed groove 9 is preferably cone tank.In addition, the second regulation ring also includes two semicircular rings, on having for above-mentioned technical characteristic
Beneficial technique effect can refer to the specific record of foregoing first adjusting part, 3 and first jam-packed ring 4, and details are not described herein again.
Embodiment two：
The utility model embodiment two provides a kind of installation method of dynamic sealing assembly, including：
First jam-packed ring and packing element first end are respectively sleeved on the outside of fixed shell, slide the first jam-packed ring to default position
Put；
Region between shoulder and the first jam-packed ring that first adjusting part is set on the outside of fixed shell, first is adjusted
Component driver the first jam-packed ring continues to slide, so that the first jam-packed groove jam-packed packing element first end of the first jam-packed ring；
Second jam-packed ring and packing element second end are respectively sleeved on the outside of armature spindle, slide the second jam-packed ring to default position
Put；
Second adjusting part is set in the second jam-packed ring and drives the second jam-packed ring away from packing element side, the second adjusting part
Continue to slide, so that the second jam-packed groove jam-packed packing element second end of the second jam-packed ring.
In the description of the present application, term " setting ", " connected ", " connection ", " fixation " etc. should all be interpreted broadly, example
Such as, " connection " can be fixedly connected or be detachably connected, or be integrally connected；It can be directly connected, can also
It is indirectly connected by intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the application
Apply in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by the utility model embodiment as above,
The content is only the embodiment for readily appreciating the utility model embodiment and using, and is not limited to the utility model
Embodiment.Technical staff in any the utility model embodiment fields, is taken off not departing from the utility model embodiment
On the premise of the spirit and scope of dew, any modification and change, but this practicality can be carried out in the form and details of implementation
The scope of patent protection of new embodiment, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of dynamic sealing assembly, it is characterised in that including packing element, the first jam-packed mechanism and the second jam-packed mechanism, the packing element
It is arranged in the ring cavity formed between stator madial wall and output shaft；
The packing element first end is set on the outside of fixed shell, and the first jam-packed mechanism is included for jam-packed packing element first end
First jam-packed ring and the first adjusting part for adjusting the first jam-packed ring jam-packed power；
The packing element second end is set on the outside of armature spindle, and the second jam-packed mechanism includes for jam-packed packing element second end
Two jam-packed rings and the second adjusting part for adjusting the second jam-packed ring jam-packed power.
2. dynamic sealing assembly according to claim 1, it is characterised in that
The first jam-packed ring set is located on the outside of fixed shell, and the first end of the first jam-packed ring is provided with extruding packing element first
The first jam-packed groove at end, the second end of the first jam-packed ring are connected with the first adjusting part.
3. dynamic sealing assembly according to claim 2, it is characterised in that
First adjusting part includes one or more first regulation rings, and first regulation ring is set on the outside of fixed shell
Shoulder and the first jam-packed ring second end between region.
4. dynamic sealing assembly according to claim 3, it is characterised in that
First regulation ring includes two semicircular rings, and described two semicircular ring docking form complete circle.
5. according to the dynamic sealing assembly described in Claims 2 or 3 or 4, it is characterised in that
The first jam-packed groove is cone tank, and internal diameter of the cone tank close to the first end endface of the first jam-packed ring is more than institute
State the internal diameter of first end endface of the cone tank away from the first jam-packed ring.
6. the dynamic sealing assembly according to claim 3 or 4, it is characterised in that
The internal diameter of first regulation ring is equal to region between the shoulder on the outside of fixed shell and the second end of the first jam-packed ring
Outside diameter.
7. according to the dynamic sealing assembly described in Claims 2 or 3 or 4, it is characterised in that
The second jam-packed ring set is located on the outside of armature spindle, and the first end of the second jam-packed ring is provided with extruding packing element second end
The second jam-packed groove, the second end of the second jam-packed ring is connected with the second adjusting part.
8. dynamic sealing assembly according to claim 7, it is characterised in that
Second adjusting part includes one or more second regulation rings.
9. dynamic sealing assembly according to claim 8, it is characterised in that
Second regulation ring includes two semicircular rings.
10. dynamic sealing assembly according to claim 7, it is characterised in that
The second jam-packed groove is cone tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305845.7U CN207333712U (en) | 2017-10-10 | 2017-10-10 | Dynamic sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721305845.7U CN207333712U (en) | 2017-10-10 | 2017-10-10 | Dynamic sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333712U true CN207333712U (en) | 2018-05-08 |
Family
ID=62368371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721305845.7U Active CN207333712U (en) | 2017-10-10 | 2017-10-10 | Dynamic sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333712U (en) |
-
2017
- 2017-10-10 CN CN201721305845.7U patent/CN207333712U/en active Active
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |