CN206487422U - Anti-releasing device for sucker rod - Google Patents
Anti-releasing device for sucker rod Download PDFInfo
- Publication number
- CN206487422U CN206487422U CN201720160176.2U CN201720160176U CN206487422U CN 206487422 U CN206487422 U CN 206487422U CN 201720160176 U CN201720160176 U CN 201720160176U CN 206487422 U CN206487422 U CN 206487422U
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- Prior art keywords
- moment
- torsion
- barrel shell
- torsion release
- shaft
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Abstract
The utility model provides Anti-releasing device for sucker rod.Barrel shell is tubular, and one end is provided with barrel shell end cap, and the other end is provided with screw pump connection screw thread, and axocoel is discharged provided with moment of torsion in barrel shell, and moment of torsion release shaft intracavitary is provided with moment of torsion release shaft involute groove；Provided with seal groove and equipped with sealing ring between barrel shell and antitorque axle, and equipped with taper roll bearing；The moment of torsion release shaft other end is connected with rotary shaft, rotary shaft is by single direction thrust ball bearing in barrel shell, rotary shaft is arranged in the space in barrel shell by nut, moment of torsion adjustment ring is housed on the shoulder between moment of torsion release shaft and rotary shaft, moment of torsion release involute groove is different gauge structures with one heart, provided with spring retainer hole and equipped with moment of torsion release spring on the part planar of moment of torsion release shaft.The utility model discharges sucker rod energy flexibility and reliability, adjusts easy for installation.Suitably used as drop-off preventer for sucker rod.
Description
Technical field
The utility model provides screw pump sucker rods safety device, specifically Anti-releasing device for sucker rod.
Background technology
Screw pump upper end is connected with sucker rod, and the device anti-dropping device generally on sucker rod, existing anti-dropping device can only be played
Prevent the effect come off between sucker rod and screw pump, it is impossible to realize rod string in screw pump system holddown and carry out moment of torsion when disconnected de-
Release, prevents casualty accident.
The structure of existing anti-dropping device, sucker rod rotating shaft is arranged on by end cap in the cylinder bore of cylinder, in it provided with Ah
Base Mead curved wall, is provided with key penetrating the rotating shaft side of cylinder bore position by spring, is provided with the opposite side of cylinder
Connecting hole, is provided with connecting hole internal thread on the peripheral wall of connecting hole.
The content of the invention
In order to solve screw pump sucker rods anticreep and exergonic problem, the utility model provides screw pump sucker rods
Anti-dropping device.The anti-dropping device is solved screw pump sucker rods and prevented by the shaft shoulder setting moment of torsion adjustment ring in moment of torsion release shaft and barrel shell
De- and exergonic technical problem.
The utility model solves the scheme that is used of technical problem：
Barrel shell is tubular, and one end is provided with barrel shell end cap, and the other end is provided with screw pump connection screw thread, provided with torsion in barrel shell
Square discharges axocoel, and moment of torsion release shaft intracavitary is provided with moment of torsion release shaft involute groove；
Antitorque axle with sucker rod variable buckle joint connections threads and antitorque axle spanner space is provided with seal groove, in seal groove
Built with sealing ring, and equipped with taper roll bearing；
The moment of torsion release shaft other end is connected with rotary shaft, and rotary shaft in barrel shell, is rotated by single direction thrust ball bearing
Axle is arranged in the space in barrel shell by nut, is adjusted on the shoulder between moment of torsion release shaft and rotary shaft equipped with moment of torsion
Barrel shell clamp portion is provided with outside ring, barrel shell；
Moment of torsion release involute groove is different gauge structures with one heart, and spring retainer is provided with the part planar of moment of torsion release shaft
Hole, in spring retainer hole built with moment of torsion release spring, moment of torsion release spring is withstood on flat key, and flat key is arranged on moment of torsion release gradually
Burst at the seams in the flat key groove of groove.
Good effect, because the utility model is using taper roll bearing and single-row thrust ball bearing increasing bearing capacity,
Moment of torsion adjustment ring adjusts torque, increases the anti-twisting property of antitorque axle, prevents sucker rod from coming off.When sucker rod is inverted, moment of torsion
Release shaft is slided in moment of torsion release shaft involute groove, and antitorque axle departs from barrel shell and individually inverted, the torque energy spirit of release sucker rod
It is living reliable, adjust easy for installation.Suitably used as drop-off preventer for sucker rod.
Brief description of the drawings
Fig. 1 is the utility model axial sectional view；
Fig. 2 is the utility model radial cross-section.
In figure, 1. barrel shells, 2. screw pump connection screw threads, 3. barrel shell clamp portions, 4. barrel shell end caps, 5. seal grooves, 6. sealings
Ring, 7. antitorque axles, 8. moment of torsion release shafts, 9. sucker rod variable buckle joint connections threads, 10. antitorque axle spanner spaces, 11. rotate
Axle, 12. taper roll bearings, 13. moment of torsion adjustment rings, 14. flat keys, 15. spring retainer holes, 16. moment of torsion release springs, 17. is single
To thrust ball bearing, 18. nuts, 19. flat key grooves, 20. flat keys slide involute groove.
Embodiment
According to the figure, barrel shell 1 is tubular, and one end is provided with barrel shell end cap 4, and the other end is provided with screw pump connection screw thread 2,
Axocoel is discharged provided with moment of torsion in barrel shell, moment of torsion release shaft intracavitary is provided with moment of torsion release shaft involute groove；
Antitorque axle 7 with sucker rod variable buckle joint connections threads 9 and antitorque axle spanner space 10 is provided with seal groove 5,
Seal groove is equipped with taper roll bearing 12 built with sealing ring 6；
The other end of moment of torsion release shaft 8 is connected with rotary shaft 11, and rotary shaft is mounted in barrel shell by single direction thrust ball bearing 17,
Rotary shaft is arranged in the space in barrel shell by nut 18, and moment of torsion is housed on the shoulder between moment of torsion release shaft and rotary shaft
Barrel shell clamp portion 3 is provided with outside adjustment ring 13, barrel shell；
Moment of torsion release involute groove is different gauge structures with one heart, and spring retainer is provided with the part planar of moment of torsion release shaft
Hole 15, in spring retainer hole built with moment of torsion release spring 16, moment of torsion release spring is withstood on flat key 14, and flat key is arranged on moment of torsion
In the flat key groove 19 for discharging involute groove 20.
Working mechanism of the present utility model：
When screw pump normal work, sucker rod rotary drives screw pump rotation, now, and flat key drives spring to moment of torsion
The motion of involute groove minimum diameter direction is discharged, and keeps discharging involute groove clamping with moment of torsion, is screw pump transmission moment of torsion, makes
Screw pump rotary work.When sucker rod and screw rod pump seizure or connection member damage, moment of torsion release shaft is acted on by opposite force,
Dallied, now flat key is moved to the big direction of diameter, carry out reaction torque rotation, though at this moment sucker rod is also in rotation, but
Moment of torsion can not be transmitted to screw pump, therefore, it is possible to realize that screw pump is anti-tripping, protection screw pump and connection member are exempted from brokenly
It is bad.
Claims (1)
1. Anti-releasing device for sucker rod, barrel shell（1）For tubular, one end is provided with barrel shell end cap（4）, the other end is provided with screw pump
Connection screw thread（2）, axocoel is discharged provided with moment of torsion in barrel shell, moment of torsion release shaft intracavitary is provided with moment of torsion release shaft involute groove；
It is characterized in that：
With sucker rod variable buckle joint connections threads（9）With antitorque axle spanner space（10）Antitorque axle（7）Provided with seal groove
（5）, in seal groove built with sealing ring（6）, and equipped with taper roll bearing（12）；
Moment of torsion release shaft（8）The other end is connected with rotary shaft（11）, rotary shaft passes through single direction thrust ball bearing（17）Mounted in barrel shell
Interior, rotary shaft passes through nut（18）In the space in barrel shell, filled on the shoulder between moment of torsion release shaft and rotary shaft
There is moment of torsion adjustment ring（13）, barrel shell outside is provided with barrel shell clamp portion（3）；
Moment of torsion release involute groove is different gauge structures with one heart, and spring retainer hole is provided with the part planar of moment of torsion release shaft
（15）, in spring retainer hole built with moment of torsion release spring（16）, moment of torsion release spring withstands on flat key（14）On, flat key is arranged on
Moment of torsion discharges involute groove（20）Flat key groove（19）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160176.2U CN206487422U (en) | 2017-02-22 | 2017-02-22 | Anti-releasing device for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720160176.2U CN206487422U (en) | 2017-02-22 | 2017-02-22 | Anti-releasing device for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206487422U true CN206487422U (en) | 2017-09-12 |
Family
ID=59765010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720160176.2U Active CN206487422U (en) | 2017-02-22 | 2017-02-22 | Anti-releasing device for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206487422U (en) |
-
2017
- 2017-02-22 CN CN201720160176.2U patent/CN206487422U/en active Active
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