CN205314935U - Screw pump is square shaft on -off connector for stop device - Google Patents
Screw pump is square shaft on -off connector for stop device Download PDFInfo
- Publication number
- CN205314935U CN205314935U CN201521122824.2U CN201521122824U CN205314935U CN 205314935 U CN205314935 U CN 205314935U CN 201521122824 U CN201521122824 U CN 201521122824U CN 205314935 U CN205314935 U CN 205314935U
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- China
- Prior art keywords
- square shaft
- sleeve
- square
- spiral pump
- tripping device
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- Expired - Fee Related
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Abstract
The utility model provides a screw pump is square shaft on -off connector for stop device, realize in the pit convenient and fast between screw pump and the sucker rod the butt joint, throw off with working torque's transmission. Screw pump is square shaft on -off connector for stop device, including sleeve and square shaft pole, the square shaft pole by sleeve lower part cartridge in the sleeve, the square shaft pole is equipped with the square shaft structure, is equipped with in the sleeve to prevent changeing the square hole with square shaft structure complex, sleeve upper portion is equipped with the connecting thread with the sucker rod butt joint, square shaft pole lower part is connected with the screw pump for the threaded connection head and through threaded connection is first, square shaft pole outside still set with sleeve complex stop nut.
Description
Technical field
The utility model relates to technical field of oil extraction equipment, is specifically related to a kind of spiral pump stop means square shaft connecting-tripping device.
Background technology
At present, when the oil pump plunger piston diameter that oil production uses is less than pipe aperture, plunger needs by the pump under hole lower going-into-well in oil pipe; When oil pump plunger piston diameter is greater than pipe aperture, plunger cannot adopt the docking of the auxiliary sucker rod of connecting-tripping device and oil extraction pump usually by hole lower going-into-well in oil pipe, take off and connect and the transmission of moment of torsion.
Spiral pump is stable with load during its work, mechanical loss is little, pump efficiency height, feature energy-conservation, that maintenance cost is low are subject to wide popularization and application, and spiral pump is suitable for viscous oil recovery, height containing sand well, high-gas-contained well. In prior art, for reducing equipment consume and maintenance cost, improve the safety in utilization of pump, extend work-ing life, spiral pump installs additional rotary limited security device, as: the patent No. is: 201420665879.7, and name is called: the technical scheme of a kind of spiral pump rotary limited security device, alters by configuring the axis of rotary stopper structural limitations screw pump rotor, can effectively prevent screw bolt well from altering the fault caused because of rotor axial, reduce the infringement caused by screw bolt well oil production equipment; The spiral pump installing rotor limit device additional transfers to, after being first rotor and stator are assembled when recovering the oil, the setting depth of pump place designed with oil pipe, and sucker rod needs to be connected with spiral pump by connecting-tripping device, transmission work moment of torsion. In order to realize docking between subsurface progressive cavity with sucker rod, disengagement and transmission work moment of torsion, design a kind of Stability Analysis of Structures, spiral pump stop means square shaft connecting-tripping device easy to use be needed for industry.
Summary of the invention
For above-mentioned technical problem, the utility model provides a kind of spiral pump stop means square shaft connecting-tripping device, realizes the transmission of docking between subsurface progressive cavity with sucker rod, disengagement and work moment of torsion quickly and easily.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of spiral pump stop means square shaft connecting-tripping device, comprise sleeve and square shaft bar, square shaft bar is plugged in sleeve by lower cartridge, square shaft bar is provided with square axle structure, the anti-rotation square hole coordinated with square axle structure it is provided with in sleeve, upper cartridge is provided with the connecting thread docked with sucker rod, and square shaft bar bottom is threaded connector and is threaded connection head and is connected with spiral pump, and square shaft bar outside is also equipped with the stop nut coordinated with sleeve.
As the further restriction of technique scheme, described square shaft bar comprises the guide head, cylindrical section, square shaft section, stop nut construction section and the threaded connector that arrange successively from top to bottom, guide head is conical structure, and stop nut is installed on stop nut construction section.
Wherein, described cylindrical section zygomorphy is provided with guiding pin, and guiding pin axis is parallel with the diagonal lines of square shaft section.
Wherein, described anti-rotation square hole corner is provided with the axial long keyway coordinated with the pin that leads.
As the further restriction of technique scheme, in described sleeve, below anti-rotation square hole, it is provided with staggered guiding surface.
The beneficial effects of the utility model are according to known to describing of such scheme:
Above-mentioned connecting-tripping device is by the sleeve of design square shaft bar and cooperation, simple and compact for structure, easy to install, drives its sleeve descending when sucker rod is gone into the well and installed by sucker rod, it is achieved with the square shaft bar docking being connected on spiral pump; During oil producing operation, the square hole of sleeve coordinates with the square shaft of square shaft bar, transmits work moment of torsion; When playing well, the separation of connecting-tripping device is also more convenient, it is possible to realize sucker rod fast and the de-of spiral pump connects.
It thus is seen that the utility model compared with prior art, has substantive distinguishing features and progress.
Accompanying drawing explanation
Fig. 1 is assembly structure schematic diagram of the present utility model;
Fig. 2 is square shaft bar structural representation;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 is the structural representation of sleeve;
Fig. 5 is the section B-B view of Fig. 4;
In figure: 1, sleeve; 1.1, anti-rotation square hole; 1.2, long keyway; 1.3, guiding surface; 2, square shaft bar; 2.1, guide head; 2.2, cylindrical section; 2.3, guiding pin; 2.4, square shaft section; 2.5, stop nut construction section; 2.6, threaded connector; 3, stop nut.
Embodiment
For clearly demonstrating technology feature of the present utility model, below by embodiment, and by reference to the accompanying drawings the utility model scheme is described in detail.
The spiral pump stop means square shaft connecting-tripping device that the utility model provides, comprise sleeve 1 and square shaft bar 2, square shaft bar 2 is plugged in sleeve 1 by sleeve 1 bottom, square shaft bar 2 is provided with square axle structure, the anti-rotation square hole 1.1 coordinated with square axle structure it is provided with in sleeve 1, sleeve 1 top is provided with the connecting thread docked with sucker rod, and square shaft bar 2 bottom is threaded connector 2.6 and is threaded connection 2.6 and is connected with spiral pump, and square shaft bar 2 outside is also equipped with the stop nut 3 coordinated with sleeve 1.
Wherein, described square shaft bar 2 comprises the guide head 2.1, cylindrical section 2.2, square shaft section 2.4, stop nut construction section 2.5 and the threaded connector 2.6 that arrange successively from top to bottom, guide head 2.1 is conical structure, and stop nut 3 is installed on stop nut construction section 2.5; Described cylindrical section 2.2 zygomorphy is provided with guiding pin 2.3, and guiding pin 2.3 axis is parallel with the diagonal lines of square shaft section 2.4.
Wherein, the axial long keyway 1.2 that described anti-rotation square hole 1.1 4 jiaos is provided with the pin 2.3 that leads coordinates; In sleeve 1, anti-rotation square hole 1.1 is provided with staggered guiding surface 1.3 below.
Principle of work of the present utility model is as follows:
1) dock: connecting-tripping device sleeve 1 is connected on the lower end of sucker rod, with sucker rod RIH. Under sucker rod string action of gravity, first the guide head 2.1 of square shaft bar 2 enters in the anti-rotation square hole 1.1 of sleeve 1, radial spacing cylindrical section 2.2 enters anti-rotation square hole 1.1 and forms " turning pair " with its inscribe subsequently, only allows sleeve 1 axial motion and determine axle to rotate; Sucker rod continues descending, one group of guiding surface 1.3 of sleeve 1 contacts with the guiding pin 2.3 of square shaft bar 2, under the effect of guiding surface 1.3, sleeve 1 contra axostylus axostyle 2 " automatically " rotates and glides, until guiding pin 2.3 enters in long keyway 1.2, and slide along long keyway 1.2, the anti-rotation square hole 1.1 of guide sleeve 1 aligns grafting with the square shaft section 2.4 of square shaft bar 2;Sleeve 1 continues descending, until stop nut 3 stops spacing, it is achieved sucker rod docks with the success of spiral pump; After sucker rod successfully docks with spiral pump, above watch out for punching distance, oil recovery process makes all the time sucker rod string be in from the stretched state that hangs down.
(2) transmit moment of torsion: during oil producing operation, the anti-rotation square hole 1.1 of sleeve 1 coordinates with the square shaft section 2.4 of square shaft bar 2, transmit work moment of torsion.
(3) de-connect: when playing well, de-termination process is contrary with to termination process, and taking off the method connect is carry sucker rod on ground, sleeve 1 is separated, it is achieved sucker rod and the de-of spiral pump connect with square shaft bar 2.
In above-described embodiment, better embodiment of the present utility model is described, however, be evident that under invention of the present utility model is conceived, still can make a lot of change. At this, it should illustrate, any change made under invention of the present utility model is conceived all will fall in protection domain of the present utility model.
Claims (6)
1. a spiral pump stop means square shaft connecting-tripping device, it is characterized in that, comprise sleeve and square shaft bar, square shaft bar is plugged in sleeve by lower cartridge, square shaft bar is provided with square axle structure, is provided with the anti-rotation square hole coordinated with square axle structure in sleeve, and upper cartridge is provided with the connecting thread docked with sucker rod, square shaft bar bottom is threaded connector and is threaded connection head and is connected with spiral pump, and square shaft bar outside is also equipped with the stop nut coordinated with sleeve.
2. spiral pump stop means square shaft connecting-tripping device according to claim 1, it is characterized in that, described square shaft bar comprises the guide head, cylindrical section, square shaft section, stop nut construction section and the threaded connector that arrange successively from top to bottom, guide head is taper structure, and stop nut is installed on stop nut construction section.
3. spiral pump stop means square shaft connecting-tripping device according to claim 2, it is characterised in that, described cylindrical section zygomorphy is provided with guiding pin, and guiding pin axis is parallel with the diagonal lines of square shaft section.
4. spiral pump stop means square shaft connecting-tripping device according to Claims 2 or 3, it is characterised in that, described guide head is conical structure.
5. spiral pump stop means square shaft connecting-tripping device according to claim 3, it is characterised in that, described anti-rotation square hole corner is provided with the axial long keyway coordinated with the pin that leads.
6. spiral pump stop means square shaft connecting-tripping device according to claim 1 or 5, it is characterised in that, it is provided with staggered guiding surface in described sleeve below anti-rotation square hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122824.2U CN205314935U (en) | 2015-12-31 | 2015-12-31 | Screw pump is square shaft on -off connector for stop device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521122824.2U CN205314935U (en) | 2015-12-31 | 2015-12-31 | Screw pump is square shaft on -off connector for stop device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205314935U true CN205314935U (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521122824.2U Expired - Fee Related CN205314935U (en) | 2015-12-31 | 2015-12-31 | Screw pump is square shaft on -off connector for stop device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205314935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484674A (en) * | 2015-12-31 | 2016-04-13 | 九环机械股份有限公司 | Square shaft connecting-tripping device for limiting device of screw pump |
-
2015
- 2015-12-31 CN CN201521122824.2U patent/CN205314935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484674A (en) * | 2015-12-31 | 2016-04-13 | 九环机械股份有限公司 | Square shaft connecting-tripping device for limiting device of screw pump |
| CN105484674B (en) * | 2015-12-31 | 2018-02-13 | 九环机械股份有限公司 | A kind of screw pump stopping means square shaft on-off connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xin Minchang Inventor after: Zhang Zhifeng Inventor after: Cao Jia Inventor after: Zhang Juguo Inventor after: Yang Xinfang Inventor after: Li Ming Inventor after: Wang Liyong Inventor before: Xin Minchang Inventor before: Zhang Zhifeng Inventor before: Zhang Juguo Inventor before: Yang Xinfang Inventor before: Li Ming Inventor before: Wang Liyong |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20171231 |