CN205918388U - Screw impulse generator in pit shocks resistance - Google Patents
Screw impulse generator in pit shocks resistance Download PDFInfo
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- CN205918388U CN205918388U CN201620500775.XU CN201620500775U CN205918388U CN 205918388 U CN205918388 U CN 205918388U CN 201620500775 U CN201620500775 U CN 201620500775U CN 205918388 U CN205918388 U CN 205918388U
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Abstract
The utility model provides a screw impulse generator in pit shocks resistance, include shell, lock nut, gland nut, last thrust bearing, lower thrust bearing, flexible bar, stator packing element, cavity rotor, move valve disc, quiet valve disc, flexible bar set up in the inboard of shell, flexible bar includes discoid structure, this is discoid structural to be equipped with a plurality of branch discharge orifices, lower thrust bearing set up in the below of this discoid structure, last thrust bearing set up in the top of this discoid structure, gland nut set up in last thrust bearing's top, lock nut set up in gland nut's top, the cavity rotor set up in the inboard of stator packing element, flexible bar's lower extreme be fixed in on the cavity rotor, move the below that the valve disc is located the cavity rotor. Screw impulse generator in pit shocks resistance to move the clearance of valve disc and quiet valve disc adjustable, do benefit to installation for complete set of engine and debugging.
Description
Technical field
This utility model belongs to petroleum technology field, especially relates to a kind of shock resistance down-hole screw pulse generator.
Background technology
During oil drilling directional drilling, provide rotary power by down-hole motor for drill bit, drill string is quiet relative to the borehole wall
Only.Drill string makes drill string axial rub resistance increase to the contact pressure of the borehole wall, rotation torque increases.Drill string frictional resistance runs up to one
Fixed number value, then make the gravity (the pressure of the drill) of DHA can not be effectively passed to drill bit it is impossible to normal creep into, may simultaneously
Drill string limitation is caused to destroy and cause down-hole accident.
Pressure oscillation within drill string during drilling well can be that drill string provides vibration, so that quiet in drilling tool and borehole wall longitudinal direction
Friction is changed into dynamic friction, effectively reduces the frictional resistance between drill string and well, and in raising drilling process, load transfer is effective
Property.Pressure oscillation main source within drill string is the uneven feed flow of surface mud pump at present.By BHA and brill
The impact of well depth, the frequency of pressure oscillation and amplitude be uncontrollable and effectively utilizes.Downhole pulser can be additionally
Periodic pressure fluctuation is provided, thus effectively overcoming the friction between extended reach well and drillstring in horizontal section and the borehole wall to hinder inside drill string
Power, reduces the moment of torsion between drill string and the borehole wall, it is to avoid the generation of lock of tool drilling, can increase substantially drilling efficiency.
Using screw rod as the pulse generator of dynamical element, power source is used as by screw motor, drives valve disc to rotate,
Make overflow section amass generating period change, periodic pressure fluctuation can be produced, there is the simple feature of structure.But routine
Due to determining valve disc, direct friction contacts screw pulse generator at work with dynamic valve disc, and valve disc is generally by hard alloy or pottery
The material that the hardness such as porcelain are high, fragility is strong is made, and has the disadvantage in that 1, rotor lacks radial direction mechanical restriction, in stator case
Have enough to meet the need along central axis while rotation, drive to produce between valve disc and uneven radially contact with impact, reduction of service life.2、
Rotor lacks axial mechanical restriction, can produce periodic vibration along axis, thus driving in the presence of periodic pressure change
Uneven radial impact, reduction of service life is produced between valve disc.
Content of the invention
In view of this, this utility model is directed to a kind of shock resistance down-hole screw pulse generator, be prevented effectively from because
The axially position that periodicity axially loaded causes lost efficacy.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of shock resistance down-hole screw pulse generator, including shell, locking nut, clamp nut, up-thrust bearing,
Lower thrust-bearing, rods, stator packing element, hollow rotor, dynamic valve disc, quiet valve disc, described rods are arranged at described outer
The inner side of shell, rods include disc-shaped structure, and this disc-shaped structure is provided with some tap holes, described lower thrust-bearing
It is arranged at the lower section of this disc-shaped structure, described up-thrust bearing is arranged at the top of this disc-shaped structure, described compression
Nut is arranged at the top of up-thrust bearing, and described locking nut is arranged at the top of clamp nut, described hollow rotor
It is arranged at the inner side of described stator packing element, the lower end of described rods is fixed on hollow rotor, described dynamic valve disc position
In the lower section of hollow rotor, described quiet valve disc is arranged at the lower section of dynamic valve disc, and described seat of valve is arranged under quiet valve disc
Side；
It is left-hand screw structure outside the upper end of described hollow rotor, lower end outside is column structure；Described stator glue
The inner side of cylinder is internal coiling shape structure.
Further, described rods include disc-shaped structure, rod-like structure, and disc-shaped structure is fixed on rod-like structure
Top, the bottom of described rod-like structure is fixed on hollow rotor；The top of described rod-like structure is in cone shape；Described
Tap hole annular spread on described disc-shaped structure；The top and bottom of described disc-shaped structure are equipped with step
Hole.Described stepped hole is used for the spacing fixation of bearing.
Further, described shell includes top connection, upper outer tube, housing, lower contact, and described top connection is arranged at outer
The top of cylinder, upper outer tube is arranged at the outside of described rods, and described housing is located at the lower section of described upper outer tube, housing
It is arranged at the outside of described stator packing element, described lower contact is located at the lower section of housing.
Further, the described inwall of upper outer tube is provided with spill draw-in groove, described lower thrust-bearing is located at this spill
The inner side of draw-in groove；Described up-thrust bearing and described lower thrust-bearing are fixed on institute by spacing for the disc-shaped structure of rods
The inner side of the spill draw-in groove stated.
Further, described dynamic valve disc is the rotary structure of the stepped increasing diameter in outside, and dynamic valve disc is provided with
Dynamic valve disc eccentric orfice；Described quiet valve disc is the rotary structure that the stepped diameter in outside successively decreases, the centre bit of quiet valve disc
Install quiet valve disc through hole.
Further, the lower section of described quiet valve disc is provided with seat of valve, and described seat of valve is connected with described lower contact；
Described seat of valve is the rotary structure that the stepped diameter in outside successively decreases, and the center of seat of valve is provided with through hole,
This through hole is identical with the diameter of described quiet valve disc through hole.
Further, it is provided with adjust pad between described seat of valve and lower contact；Described adjust pad is in circular
Structure.The outside setting of described seat of valve is fluted, is provided with sealing ring in groove.
Further, described up-thrust bearing is identical with the structure of lower thrust-bearing；The upper end of described hollow rotor with
Lower end is equipped with blind hole；The length of the described blind hole positioned at hollow rotor upper end be more than described positioned at hollow rotor lower end
The length of blind hole；Described rods are placed through the blind hole of hollow rotor upper end, and are fixed on hollow rotor；Described position
Hole wall in the blind hole of hollow rotor lower end is provided with some through holes perpendicular with axial direction.
Further, the left-hand screw structure of described hollow rotor and the internal coiling shape structure of stator packing element engage each other.Institute
Stator packing element and the housing stated are integrally formed.
Further, the centre position of described locking nut is provided with through hole；The upper end of the inner side of described locking nut is
Pyramidal structure；The centre position of described clamp nut is provided with through hole；The lower end of described clamp nut is provided with flange.
With respect to prior art, shock resistance down-hole described in the utility model screw pulse generator has following excellent
Gesture:
(1) the dynamic valve disc of shock resistance down-hole described in the utility model screw pulse generator and hollow rotor are by soft
The constraint of property bar, its axially-movable suffers restraints, and there is certain interval with quiet valve disc, prevents the two directly contact, it is to avoid
That can cause in the presence of periodic pressure change produces uneven axially contact impact and quiet valve disc between, it is to avoid cause dynamic valve
Disk and the impact grinding of quiet valve disc, can improve run stability and reliability；Dynamic valve disc and hollow rotor are subject to the pact of rods
Bundle, its radial motion is restricted, it is to avoid produce uneven radial impact and quiet valve disc between, causes the two eccentric wear, prevents simultaneously
Stop valve disc is collided with enclosure interior damage in circular motion；Axial constraint to rods, employs double nut and puts
Loose structure (locking nut, clamp nut), can be prevented effectively from and lose efficacy because of the axially position that periodicity axially loaded causes.
(2) the dynamic valve disc of shock resistance down-hole described in the utility model screw pulse generator and the gap of quiet valve disc can
Adjustment, beneficial to whole machine installation and debugging.
Brief description
The accompanying drawing constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The schematic description and description of type is used for explaining this utility model, does not constitute to improper restriction of the present utility model.?
In accompanying drawing:
Fig. 1 is the structural representation of the shock resistance down-hole screw pulse generator described in this utility model embodiment；
Fig. 2 is the schematic diagram in the rods a-a face described in this utility model embodiment；
Fig. 3 is schematic diagram during the eccentric orfice of dynamic valve disc and the coincidence of quiet valve disc through hole described in this utility model embodiment；
Fig. 4 is the eccentric orfice of dynamic valve disc described in the embodiment of the present invention and quiet valve disc through hole schematic diagram when staggering.
Description of reference numerals:
1- top connection；The upper outer tube of 2-；3- locking nut；4- clamp nut；5- up-thrust bearing；6- lower thrust-bearing；7-
Rods；8- housing；9- stator packing element；10- hollow rotor；11- moves valve disc；The quiet valve disc of 12-；13- seat of valve；14- adjusting pad
Piece；15- sealing ring；16- lower contact；17- moves valve disc eccentric orfice；18- quiet valve disc through hole.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can
To be mutually combined.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction
Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Ground connects；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to pass through the indirect phase of intermediary
Even, can be the connection of two element internals.For the ordinary skill in the art, can be understood by concrete condition
Concrete meaning in this utility model for the above-mentioned term.
To describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As Figure 1-4, a kind of shock resistance down-hole screw pulse generator, including shell, locking nut 3, compression spiral shell
Female 4, up-thrust bearing 5, lower thrust-bearing 6, rods 7, stator packing element 9, hollow rotor 10, dynamic valve disc 11, quiet valve disc 12, institute
The rods 7 stated are arranged at the inner side of described shell, and rods 7 include disc-shaped structure, if this disc-shaped structure is provided with
Dry tap hole, described lower thrust-bearing 6 is arranged at the lower section of this disc-shaped structure, and described up-thrust bearing 5 is arranged at
The top of this disc-shaped structure, described clamp nut 4 is arranged at the top of up-thrust bearing 5, and described locking nut 3 is arranged
In the top of clamp nut 4, described hollow rotor 10 is arranged at the inner side of described stator packing element 9, described rods 7
Lower end is fixed on hollow rotor 10, and described dynamic valve disc 11 is located at the lower section of hollow rotor 10, and described quiet valve disc 12 is arranged
In the lower section of dynamic valve disc 11, described seat of valve 13 is arranged at the lower section of quiet valve disc 12.
Described rods 7 include disc-shaped structure, rod-like structure, and disc-shaped structure is fixed on the top of rod-like structure,
The bottom of described rod-like structure is fixed on hollow rotor 10；The top of described rod-like structure is in cone shape；Described
Tap hole annular spread is on described disc-shaped structure；The top and bottom of described disc-shaped structure are equipped with stepped hole.
Described shell includes top connection 1, upper outer tube 2, housing 8, lower contact 16, and described top connection 1 is arranged at outer
The top of cylinder 2, upper outer tube 2 is arranged at the outside of described rods 7, and described housing 8 is located under described upper outer tube 2
Side, housing 8 is arranged at the outside of described stator packing element 9, and described lower contact 16 is located at the lower section of housing 8.
Spill draw-in groove is provided with the described inwall of upper outer tube 2, described lower thrust-bearing 6 is located at this spill draw-in groove
Inner side；Described up-thrust bearing 5 is fixed on institute with described lower thrust-bearing 6 by spacing for the disc-shaped structure of rods 7
The inner side of the spill draw-in groove stated.
Described dynamic valve disc 11 is the rotary structure of the stepped increasing diameter in outside, and dynamic valve disc 11 is provided with dynamic valve
Disk eccentric orfice 17；Described quiet valve disc 12 is the rotary structure that the stepped diameter in outside successively decreases, the center of quiet valve disc 12
Position is provided with quiet valve disc through hole 18.
The lower section of described quiet valve disc 12 is provided with seat of valve 13, described seat of valve 13 and described lower contact 16 phase
Even；Described seat of valve 13 is the rotary structure that the stepped diameter in outside successively decreases, the center setting of seat of valve 13
There is through hole, this through hole is identical with the diameter of described quiet valve disc through hole 18.
It is provided with adjust pad 14 between described seat of valve 13 and lower contact 16；Described adjust pad 14 is in circular
Structure.
It is left-hand screw structure outside the described upper end of hollow rotor 10, lower end outside is column structure；Described hollow
The top and bottom of rotor 10 are equipped with blind hole；The length of the described blind hole positioned at hollow rotor 10 upper end is more than described position
Length in the blind hole of hollow rotor 10 lower end；Described rods 7 are placed through the blind hole of hollow rotor 10 upper end, and fixing
On hollow rotor 10；The hole wall of the described blind hole positioned at hollow rotor 10 lower end is provided with some hanging down with axial direction phase
Straight through hole；The inner side of described stator packing element 9 is internal coiling shape structure.
The left-hand screw structure of described hollow rotor 10 is engaged each other with the internal coiling shape structure of stator packing element 9.
The centre position of described locking nut 3 is provided with through hole；The upper end of the inner side of described locking nut 3 is tied for taper
Structure；The centre position of described clamp nut 4 is provided with through hole；The lower end of described clamp nut 4 is provided with flange.
The upper end of described top connection 1 is box, and lower end is pin thread, and top connection 1 is slightly middle thin for being internally provided with two ends
Shoulder hole cylinder-like structure；The upper end of upper outer tube 2 is box, and lower end is pin thread, and upper outer tube 2 is the tapered face of bottom inner portion
Cavity cylinder-like structure；The cavity inside of upper outer tube 2 is provided with stepped throughhole, is box screw thread in the middle part of this through hole, cavity
Bottom is provided with spill draw-in groove, for spacing lower thrust-bearing 6；Locking nut 3 is the internal tapered face in upper end, sets inside lower end
It is equipped with through hole, and the outside cylinder-like structure for pin thread screw thread；The centre of clamp nut 4 is provided with through hole, and bottom is provided with flange, pressure
Jack panel 4 is the outside cylinder-like structure for pin thread screw thread；Up-thrust bearing 5 is identical with the structure of lower thrust-bearing 6, be all by
One blowout patche, a bearing race, a rolling element and retainer thrust assemblies are formed, and Main Function is subject to rotor and goes
Luck moves the side force that the bending load causing and drill bit produce when rotating, and up-thrust bearing 5 plays metering function to drilling fluid；Soft
Property bar 7 be special-shaped rod-like structure, top is in cone flow-guiding structure, is the raised disc-shaped structure of limited location below cone,
It is uniformly distributed several tap holes around its center, its main body is elongated rod-shaped, end is screw thread pin thread.Housing 8 is that upper end is
Box, lower end are the cavity cylinder-like structure of pin thread；Stator packing element 9 is endoporus helical hollow cylindrical structure, internal
It is fixed with internal coiling shape passage；Housing 8 is formed in one with stator packing element 9；Hollow rotor 10 is to be left-handed spiro outside upper end
Structure, lower end outside is column structure, and the top and bottom of hollow rotor 10 are equipped with blind hole, and upper end blind hole is longer and inner bottom part is
Box screw thread, lower end blind hole is shorter and hole wall on uniform cross opening perpendicular to axial；Hollow rotor 10 and 9 groups of stator packing element
A series of continuous, conjugation, engagement annular seal spaces can be formed along their contact point after installing, there is the liquid of pressure energy
Under effect, with the formation of annular seal space, change and disappearance, rotor can be forced continuously to move in the stator；Dynamic valve disc 11 is outer
It is stepped that portion diametrically increases, and is internally provided with the rotary structure of dynamic valve disc eccentric orfice 17；Quiet valve disc 12 reduces for diameter
Stepped rotary structure, be provided centrally with quiet valve disc through hole 18, the diameter of quiet valve disc through hole 18 is led to seat of valve 13 center
Bore dia is consistent；The hollow rotary structure that seat of valve 13 from up to down successively decreases for outside stepped and diameter, inside upper end
It is provided with shoulder hole, the internal tapered face in lower end, middle part outer end is pin thread screw thread, is connected with the box screw thread of lower contact 16；
Adjust pad 14 is flat annulus shape structure；Lower contact 16 is inside the outside pin thread in upper end to be pin thread and inside for box, lower end
It is provided with the cylinder-like structure of shoulder hole, the internal box in upper end is threadeded with seat of valve lower end pin thread, and lower end pin thread screw thread is used
In connection drilling tool.
During installation, dynamic valve disc 11 top ledge is processed by hot charging and is connected with the bottom centre hole of hollow rotor 10
Connect；By hollow rotor 10 install with stator packing element 9 in；Lower thrust-bearing 6 is installed in upper outer tube 2 lower recess, rods 7
Bottom passes through lower thrust-bearing 6 and the middle emptying aperture of hollow rotor 10；Up-thrust bearing 5 is installed on the spacing end face of rods 7
Upside；Clamp nut 4 box internal with upper outer tube 2 is threadeded；Locking nut 3 box internal with upper outer tube 2 is threadeded；Logical
Cross and screw the linking screw thread of the two, by internal each assembly positioning compression；By upper outer tube 2 lower end pin thread with housing 8 upper end box even
Connect, threadeded with hollow rotor 10 bottom box in rods 7 bottom simultaneously；By on upper outer tube 2 upper end box and top connection 1
End pin thread connects；Move valve disc 11 bottom face with vernier caliper measurement to the actual range of housing 8 bottom face, the quiet valve disc of measurement 12 is in fact
The physical length of border thickness, the outer edge thickness of seat of valve 13 and lower contact 16 upper end pin thread screw thread；Ensureing dynamic valve disc 11 bottom
The thickness of adjust pad 14 is calculated on the basis of leaving no more than 0.5mm gap between face and quiet valve disc 12 top end face；By two
Individual sealing ring 15 is arranged in seat of valve 13 lower recess；By quiet valve disc 12 lower end bossing and ladder on seat of valve 13 top
Hole is processed by hot charging and is connected；Adjust pad 14 is placed in seat of valve 13 pin thread threaded tip；Seat of valve 13 middle part outer end
Pin thread screw thread is connected with the box screw thread of lower contact 16；The outside pin thread in lower contact 16 upper end is connected with housing 8 bottom pin thread.
Taper thread in each connection is Special seal screw thread；The female thread at top connection 1 top and spiral shell outside lower contact 16 bottom
Stricture of vagina is standard drill pipe connection screw thread, for connecting drilling tool.
After liquid enters described shock resistance down-hole screw pulse generator by top connection 1, liquid is by top connection 1
Interior bone be flowed into the water conservancy diversion annular space that rods 7 are formed, in the presence of hydraulic shock drive hollow rotor 10 in stator
Cycle rotation in packing element 9, hollow rotor 10 rotates in stator packing element 9 simultaneously, makes valve disc eccentric orfice 17 and quiet valve disc through hole
Periodically overlap between 18 and stagger；Hollow rotor 10 drives rods 7 to rotate.Rods 7 not only limit dynamic valve disc 11
Axial vibration, also limit its radial displacement, to 10 1 centering forces of hollow rotor, reduces the eccentric wear of dynamic valve disc 11；Lifting force
Bearing 5, lower thrust-bearing 6 rotate rotation with rods 7, not only limit the axial displacement of hollow rotor 10, also limit
Its axial vibration and impact；When dynamic valve disc eccentric orfice 17 and the coincidence of quiet valve disc through hole 18 of dynamic valve disc 11, as shown in figure 3, mistake
Flow area is maximum, and the liquid of entering tool can lead to via passing through seat of valve 13 after dynamic valve disc eccentric orfice 17 and quiet valve disc through hole 18
Hole flows into lower contact 16, and the pressure that now tool interior produces is minimum；When dynamic valve disc eccentric orfice 17 and quiet valve disc through hole 18 stagger
When, as shown in figure 4, the area that the liquid of entering tool passes through diminishes, the pressure that now tool interior produces becomes big；Dynamic valve disc is inclined
Heart hole 17 and quiet valve disc through hole 18 periodically overlap and the change that can make area of passage circulation of staggering, and the pressure in instrument occurs
Cyclically-varying, thus produce the vibration on circumferencial direction.
No more than 0.5mm gap is left between described dynamic valve disc 11 bottom face and quiet valve disc 12 top end face；By adjustment
Flow, thus it is possible to vary the velocity of rotation of rods 7, you can change pulsating pressure frequency；By the dynamic valve disc 11 of adjustment and quiet valve disc
The sectional area of flowing hole on 12, you can change pulsating pressure amplitude.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this utility model
Protection domain within.
Claims (10)
1. a kind of shock resistance down-hole screw pulse generator it is characterised in that: include shell, locking nut (3), clamp nut
(4), up-thrust bearing (5), lower thrust-bearing (6), rods (7), stator packing element (9), hollow rotor (10), dynamic valve disc
(11), quiet valve disc (12), described rods (7) are arranged at the inner side of described shell, and rods (7) include discoid knot
Structure, this disc-shaped structure is provided with some tap holes, and described lower thrust-bearing (6) is arranged under this disc-shaped structure
Side, described up-thrust bearing (5) is arranged at the top of this disc-shaped structure, and described clamp nut (4) is arranged at lifting force
The top of bearing (5), described locking nut (3) is arranged at the top of clamp nut (4), and described hollow rotor (10) is arranged
In the inner side of described stator packing element (9), the lower end of described rods (7) is fixed on hollow rotor (10), and described is dynamic
Valve disc (11) is located at the lower section of hollow rotor (10), and described quiet valve disc (12) is arranged at the lower section of dynamic valve disc (11), described
Seat of valve (13) is arranged at the lower section of quiet valve disc (12)；
It is left-hand screw structure outside the described upper end of hollow rotor (10), lower end outside is column structure；Described stator glue
The inner side of cylinder (9) is internal coiling shape structure.
2. shock resistance down-hole according to claim 1 screw pulse generator it is characterised in that: described rods
(7) disc-shaped structure, rod-like structure are included, disc-shaped structure is fixed on the top of rod-like structure, the bottom of described rod-like structure
End is fixed on hollow rotor (10)；The top of described rod-like structure is in cone shape；Described tap hole annular spread in
On described disc-shaped structure；The top and bottom of described disc-shaped structure are equipped with stepped hole.
3. shock resistance down-hole according to claim 1 and 2 screw pulse generator it is characterised in that: described shell
Including top connection (1), upper outer tube (2), housing (8), lower contact (16), described top connection (1) is arranged at the upper of outer tube (2)
Side, upper outer tube (2) is arranged at the outside of described rods (7), and described housing (8) is located under described upper outer tube (2)
Side, housing (8) is arranged at the outside of described stator packing element (9), and described lower contact (16) is located at the lower section of housing (8).
4. shock resistance down-hole according to claim 3 screw pulse generator it is characterised in that: described upper outer tube
(2) spill draw-in groove is provided with inwall, described lower thrust-bearing (6) is located at the inner side of this spill draw-in groove；Described above pushes away
Power bearing (5) is fixed on described spill draw-in groove with described lower thrust-bearing (6) by spacing for the disc-shaped structure of rods (7)
Inner side.
5. shock resistance down-hole according to claim 3 screw pulse generator it is characterised in that: described dynamic valve disc
(11) be the stepped increasing diameter in outside rotary structure, dynamic valve disc (11) is provided with dynamic valve disc eccentric orfice (17)；Institute
The quiet valve disc (12) stated is the rotary structure that the stepped diameter in outside successively decreases, and the center of quiet valve disc (12) is provided with quiet
Valve disc through hole (18).
6. shock resistance down-hole according to claim 5 screw pulse generator it is characterised in that: described quiet valve disc
(12) lower section is provided with seat of valve (13), and described seat of valve (13) is connected with described lower contact (16)；Described valve disc
Seat (13) is the rotary structure that the stepped diameter in outside successively decreases, and the center of seat of valve (13) is provided with through hole, should
Through hole is identical with the diameter of described quiet valve disc through hole (18).
7. shock resistance down-hole according to claim 6 screw pulse generator it is characterised in that: described seat of valve
(13) it is provided with adjust pad (14) and lower contact (16) between；Described adjust pad (14) is in circular ring.
8. shock resistance down-hole according to claim 1 and 2 screw pulse generator it is characterised in that: described hollow
The top and bottom of rotor (10) are equipped with blind hole；The length of the described blind hole positioned at hollow rotor (10) upper end is more than described
The blind hole positioned at hollow rotor (10) lower end length；Described rods (7) are placed through hollow rotor (10) upper end
Blind hole, and be fixed on hollow rotor (10)；The hole wall of the described blind hole positioned at hollow rotor (10) lower end is provided with some
The through hole perpendicular with axial direction.
9. shock resistance down-hole according to claim 8 screw pulse generator it is characterised in that: described hollow rotor
(10) left-hand screw structure is engaged each other with the internal coiling shape structure of stator packing element (9).
10. shock resistance down-hole according to claim 1 screw pulse generator it is characterised in that: described locking screw
The centre position of female (3) is provided with through hole；The upper end of the inner side of described locking nut (3) is pyramidal structure；Described compression spiral shell
The centre position of female (4) is provided with through hole；The lower end of described clamp nut (4) is provided with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500775.XU CN205918388U (en) | 2016-05-26 | 2016-05-26 | Screw impulse generator in pit shocks resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500775.XU CN205918388U (en) | 2016-05-26 | 2016-05-26 | Screw impulse generator in pit shocks resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918388U true CN205918388U (en) | 2017-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620500775.XU Expired - Fee Related CN205918388U (en) | 2016-05-26 | 2016-05-26 | Screw impulse generator in pit shocks resistance |
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| Country | Link |
|---|---|
| CN (1) | CN205918388U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246238A (en) * | 2017-08-01 | 2017-10-13 | 西南石油大学 | A kind of integration impact mud motor |
| CN112360416A (en) * | 2020-11-10 | 2021-02-12 | 中国科学院武汉岩土力学研究所 | Bispin formula pressure pulse converter and hydraulic fracturing priming device |
| CN114776256A (en) * | 2022-03-16 | 2022-07-22 | 三峡大学 | Screw-driven low-frequency pulse layered water injection valve and method |
| CN115788278A (en) * | 2022-12-06 | 2023-03-14 | 四川达坦能源科技有限公司 | Screw type pulse anti-drag drilling tool |
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2016
- 2016-05-26 CN CN201620500775.XU patent/CN205918388U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246238A (en) * | 2017-08-01 | 2017-10-13 | 西南石油大学 | A kind of integration impact mud motor |
| CN107246238B (en) * | 2017-08-01 | 2021-04-27 | 西南石油大学 | Integrated impact downhole power drilling tool |
| CN112360416A (en) * | 2020-11-10 | 2021-02-12 | 中国科学院武汉岩土力学研究所 | Bispin formula pressure pulse converter and hydraulic fracturing priming device |
| CN114776256A (en) * | 2022-03-16 | 2022-07-22 | 三峡大学 | Screw-driven low-frequency pulse layered water injection valve and method |
| CN114776256B (en) * | 2022-03-16 | 2024-05-28 | 三峡大学 | Screw-driven low-frequency pulse layered water injection valve and method |
| CN115788278A (en) * | 2022-12-06 | 2023-03-14 | 四川达坦能源科技有限公司 | Screw type pulse anti-drag drilling tool |
| CN115788278B (en) * | 2022-12-06 | 2023-10-17 | 四川达坦能源科技有限公司 | Screw pulse drag reduction drilling tool |
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