CN207583365U - The shearing slurry pulsator of built-in position-limit mechanism - Google Patents
The shearing slurry pulsator of built-in position-limit mechanism Download PDFInfo
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- CN207583365U CN207583365U CN201721502818.9U CN201721502818U CN207583365U CN 207583365 U CN207583365 U CN 207583365U CN 201721502818 U CN201721502818 U CN 201721502818U CN 207583365 U CN207583365 U CN 207583365U
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Abstract
The utility model provides a kind of shearing slurry pulsator of built-in position-limit mechanism, it includes the fishing head of shell and setting inside the housing, stator, rotor, drive shaft, shaft coupling, position-limit mechanism, decelerating motor, pressure-resistant patchboard and driving circuit, rotor includes the first position to overlap and the interlaced second position with stator, rotary valve is opened when rotor is in first position with stator, rotary valve is closed when rotor is in the second position with stator, decelerating motor is electrically connected by means of pressure-resistant patchboard with driving circuit, driving circuit output control signal driving decelerating motor rotation, the output shaft of decelerating motor is connected by shaft coupling with drive shaft, drive shaft drives rotor to rotate back and forth, rotor is made to switch between the first position and the second position with stator, complete opening or closing for rotary valve.Its is simple in structure, and intensity is high, and limit accuracy is high, without installation and debugging repeatedly, improves the precision and reliability of shearing slurry pulsator, and extend service life.
Description
Technical field
The utility model belongs to petroleum industry field, more particularly to a kind of shearing mud-pulse of built-in position-limit mechanism
Device.
Background technology
During oil exploration, need to grasp the various data of down-hole formation in real time, safely and accurately to exploit.With
Bore measuring technique can the nearly drill bit down-hole information of real-time Transmission, be one of key technology of drilling well.Slurry pulsator is measurement while drilling
Important equipment, at present, the slurry pulsator of high transfer rate is the measuring apparatus that numerous technical staff generally use.
Traditional slurry pulsator is moved along a straight line back and forth by hydraulic control circuit driving throttle valve along mud flow direction, by
Big in slurry resistance, there are the shortcomings of power consumption is big, transmission rate is slow.Shearing slurry pulsator drives rotor to hang down by motor
Straight mud flow direction rotation, suffered resistance is small, and transmission speed is fast, is the inexorable trend of slurry pulsator development.
The control accuracy for the rotary valve that the performance of shearing slurry pulsator is mainly made of rotor and stator determines.Rotary valve by
The stator of identical valve number (generally even number) and rotor composition, when rotor and stator be in coincidence status, rotary valve is opened, when turn
When son and stator are in interleaved state, rotary valve is closed.The shortcomings that existing shearing slurry pulsator is：Its internal rotary valve position
Control accuracy is low, measures inaccurate.
Utility model content
To improve the control accuracy of shearing slurry pulsator, the purpose of this utility model is to provide a kind of built-in position restrainer
The shearing slurry pulsator of structure, simple in structure, control accuracy is high.
To achieve the above object, the utility model uses following technical solution：A kind of shearing of built-in position-limit mechanism
Formula slurry pulsator, including shell and setting fishing head inside the housing, stator, stator casing, rotor, rotor outside
Shell, drive shaft, shaft coupling, decelerating motor, pressure-resistant patchboard and driving circuit, the fishing head are set to mud upstream,
The rotor collectively constitutes rotary valve with stator, and the rotor includes the first position to overlap and phase with stator
The mutually second position staggeredly, rotary valve is opened when the rotor is in first position with stator, and the rotor is in second with stator
Rotary valve is closed during position,
A built-in position-limit mechanism is further included, the position-limit mechanism includes limiting slot and positive stop lug boss；The limiting slot
The arc groove for being located at the rotor case inner wall for one section, the positive stop lug boss are located at convex on the drive shaft outer wall for one
Platform, the positive stop lug boss are embedded in the limiting slot；
When drive shaft drives rotor to rotate back and forth, positive stop lug boss rotates back and forth in limiting groove, the both ends of limiting slot
Limiting is so that rotor and stator are in first position or the second position.
Preferably, the decelerating motor is the brshless DC motor for being provided with heat safe harmonic speed reducer.
Preferably, the brshless DC motor is additionally provided with Hall sensor.
Compared with prior art, the utility model has the advantages that：
The utility model provides a kind of shearing slurry pulsator of built-in position-limit mechanism, uses built-in position restrainer
Structure, simple in structure, intensity is high, and limit accuracy is high, and easy to use without installation and debugging repeatedly, position-limit mechanism is provided with limiting slot
And positive stop lug boss, limiting is accurate, further carries out mechanical position limitation to the opening and closing of rotary valve on the basis of electrical control, carries
The high position control accuracy of rotary valve.
The utility model uses has the brshless DC motor of heat safe harmonic speed reducer and Hall sensor work simultaneously
For decelerating motor, the precision and reliability of shearing slurry pulsator are improved, and extends service life.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the position-limit mechanism of the utility model.
Specific embodiment
The exemplary embodiment, feature and aspect of the utility model are described in detail below with reference to attached drawing.It is identical in attached drawing
Reference numeral represent functionally the same or similar element.Although the various aspects of embodiment are shown in the drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
As shown in Figure 1, the utility model provides a kind of shearing slurry pulsator of built-in position-limit mechanism, it includes salvaging
First 1, stator 2, stator casing 3, rotor 4, drive shaft 5, rotor case 6, bearing 8, shaft coupling 9, decelerating motor 10, motor housing
11st, pressure-resistant patchboard 12, driving circuit 13, circuit case 14 and helmet 15；Wherein, 10 immersion oil of decelerating motor works, and slow down electricity
Machine 10 is electrically connected by pressure-resistant patchboard 12 with driving circuit 13.The output control signal driving decelerating motor 10 of driving circuit 13 revolves
Turn, decelerating motor 10 is connected by shaft coupling 9 with drive shaft 5, and drive shaft 5 drives rotor 4 to rotate back and forth, makes rotor 4 and stator 2
Position changes repeatedly, and rotor 4 is with stator 2 in first position (rotor and stator coincidence status) and the second position (rotor and stator
Interleaved state) between switch, complete the opening and closing of rotary valve.
The precision of shearing slurry pulsator in order to control improves and measures level, as shown in Figure 1, the utility model is being sheared
A position-limit mechanism 7 is provided in formula slurry pulsator.As shown in Fig. 2, the position-limit mechanism 7 is built in version, it includes limiting
Slot 71 and positive stop lug boss 72；The arc groove that limiting slot 71 is located at 6 inner wall of rotor case for one section, positive stop lug boss 72 are one
Boss on 5 outer wall of drive shaft, positive stop lug boss 72 are embedded in limiting slot 71.When 5 relative rotor shell 6 of drive shaft is round-trip
During rotation, positive stop lug boss 72 rotates back and forth in limiting groove 71, and the both ends limiting of position-limit mechanism 7 makes rotor and laundry just
In the first position of coincidence status (rotary valve opening) and the second position (rotary valve closing) in interleaved state.
In specific embodiment of the utility model, the decelerating motor is is provided with heat safe harmonic speed reducer and suddenly
The brshless DC motor of your sensor.
The utility model uses built-in position-limit mechanism, simple in structure, and intensity is high, and limit accuracy is high, without pacifying repeatedly
Adjustment tries, and improves the precision and reliability of shearing slurry pulsator, and extend service life.
Finally it should be noted that：Above-described each embodiment be merely to illustrate the technical solution of the utility model rather than
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, those of ordinary skill in the art
It should be understood that：It can still modify to the technical solution recorded in previous embodiment or to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution the utility model
The range of each embodiment technical solution.
Claims (3)
1. a kind of shearing slurry pulsator of built-in position-limit mechanism, including salvaging shell and setting inside the housing
Head, stator, stator casing, rotor, rotor case, drive shaft, shaft coupling, decelerating motor, pressure-resistant patchboard and driving circuit,
The fishing head is set to mud upstream,
The rotor collectively constitutes rotary valve with stator, and the rotor includes the first position to overlap with stator and mutually hands over
The wrong second position, rotary valve is opened when the rotor is in first position with stator, and the rotor is in the second position with stator
When rotary valve close,
It is characterized in that：A built-in position-limit mechanism is further included, the position-limit mechanism includes limiting slot and positive stop lug boss；It is described
The arc groove that limiting slot is located at the rotor case inner wall for one section, the positive stop lug boss are located at the drive shaft outer wall for one
On boss, the positive stop lug boss is embedded in the limiting slot；
When drive shaft drives rotor to rotate back and forth, positive stop lug boss rotates back and forth in limiting groove, the both ends limiting of limiting slot
So that rotor and stator are in first position or the second position.
2. the shearing slurry pulsator of built-in position-limit mechanism according to claim 1, it is characterised in that：The electricity that slows down
Machine is the brshless DC motor for being provided with heat safe harmonic speed reducer.
3. the shearing slurry pulsator of built-in position-limit mechanism according to claim 2, it is characterised in that：It is described brushless straight
Galvanic electricity machine is additionally provided with Hall sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502818.9U CN207583365U (en) | 2017-11-13 | 2017-11-13 | The shearing slurry pulsator of built-in position-limit mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721502818.9U CN207583365U (en) | 2017-11-13 | 2017-11-13 | The shearing slurry pulsator of built-in position-limit mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583365U true CN207583365U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721502818.9U Active CN207583365U (en) | 2017-11-13 | 2017-11-13 | The shearing slurry pulsator of built-in position-limit mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209355A (en) * | 2018-11-02 | 2019-01-15 | 中国石油大学(华东) | A kind of unidirectional continuous rotation motor driven shearing valve type mud pulse generator |
| CN111075436A (en) * | 2019-12-27 | 2020-04-28 | 北京六合伟业科技股份有限公司 | Small-size rotary valve pulser of resistant scouring |
| CN113482606A (en) * | 2021-05-14 | 2021-10-08 | 西南石油大学 | Underground signal receiving and transmitting device |
-
2017
- 2017-11-13 CN CN201721502818.9U patent/CN207583365U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209355A (en) * | 2018-11-02 | 2019-01-15 | 中国石油大学(华东) | A kind of unidirectional continuous rotation motor driven shearing valve type mud pulse generator |
| CN109209355B (en) * | 2018-11-02 | 2021-10-12 | 中国石油大学(华东) | Shear valve type slurry pulse generator driven by unidirectional continuous rotating motor |
| CN111075436A (en) * | 2019-12-27 | 2020-04-28 | 北京六合伟业科技股份有限公司 | Small-size rotary valve pulser of resistant scouring |
| CN113482606A (en) * | 2021-05-14 | 2021-10-08 | 西南石油大学 | Underground signal receiving and transmitting device |
| CN113482606B (en) * | 2021-05-14 | 2023-09-22 | 西南石油大学 | Underground signal receiving and transmitting device |
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