CN102071880A - Anti-falling centering device for sucker rod - Google Patents
Anti-falling centering device for sucker rod Download PDFInfo
- Publication number
- CN102071880A CN102071880A CN 201010590936 CN201010590936A CN102071880A CN 102071880 A CN102071880 A CN 102071880A CN 201010590936 CN201010590936 CN 201010590936 CN 201010590936 A CN201010590936 A CN 201010590936A CN 102071880 A CN102071880 A CN 102071880A
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- China
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- sucker rod
- screw pump
- falling
- connector
- universal
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Abstract
The invention discloses an anti-falling centering device for a sucker rod. The sucker rod is connected with a universal device; a screw pump is connected with an anti-falling device through a screw pump connecting end; a connector is inserted between the universal device and the anti-falling device; and an anti-falling device spring assembly is arranged on the anti-falling device. In the anti-falling centering device for the sucker rod, the universal device and the anti-falling device are connected integrally through the connector; and the two ends of the whole are respectively arranged on the screw pump and the sucker rod. The anti-falling centering device for the sucker rod has the characteristics of preventing the screw pump from eccentricity and vibration, prolonging service life, shortening maintenance period and improving oil recovery, along with a stable and firm structure. The anti-falling centering device for the sucker rod is suitable to be used for connecting the screw pump and the sucker rod of oil pumping operation on an oilfield.
Description
Technical field
What the present invention proposed is the mud oil instrument in petroleum machinery field.Specifically a kind of sucker rod anticreep device placed in the middle.
Background technology
Before the present invention proposes, being used for screw pump oil production needs anti-dropping device to be connected with sucker rod usually, for adopting universal device, the deflection that adapts to oil well is installed on the sucker rod, because two kinds of parts partial installations are on sucker rod, so trouble not only is installed, but also can not reach fastening and unification, and break down easily, influence oil producing operation.
Present sucker rod is connected with following several mode with screw pump: 1, screw pump directly is connected with sucker rod.Shortcoming is that sucker rod is stuck easily, can not rotate when skew takes place oil well; 2, screw pump is connected with anti-dropping device, and then is connected with sucker rod, owing to there is not universal device, when oil well was eccentric, the borehole wall stopped the sucker rod rotation, also causes sucker rod stuck in oil well; 3, screw pump is connected with anti-dropping device, and anti-dropping device is connected with sucker rod, on sucker rod, connect universal device, though connect the oil producing operation that can adapt to inclined to one side well like this, owing to anti-dropping device is connected by sucker rod with universal device, so, easily in rotary course, cause the screw pump swing, and cause the screw pump rotor excessive abrasion that is connected, reduce the application life of screw pump.
Summary of the invention
Connect the existing shortcoming of universal device in order to overcome existing screw pump by sucker rod, the present invention proposes a kind of sucker rod anticreep device placed in the middle.This device placed in the middle is by being connected in one the technical problem that solves the screw pump rotor excessive abrasion or come off and vibrate with connector between universal device and anti-dropping device.
The scheme that technical solution problem of the present invention is adopted is: sucker rod is connected on the universal device, and screw pump is connected on the anti-dropping device by the screw pump link, interts to be connected with connector between universal device and anti-dropping device, and the anti-dropping device groups of springs is installed on the anti-dropping device.
Connector is a tubular structure, and the one end is inserted in the connecting hole of universal device, and makes connector and universal device fastening by screw thread or welding.
The connector other end is fastened in the cover, and is fastenedly connected by the link of screw thread and anti-dropping device.
Connector adopts the heat rammer to forge processes and makes.
Because connector is forged processes by rammer and is made, its structure densification, bonding strength is big, twisting resistance is big, so can guarantee being connected firmly of sucker rod, operate steadily, be unlikely to cause being connected and the running vibration of sucker rod, universal device and anti-dropping device, thereby the operation that guarantees screw pump is normally stable, is unlikely to cause the excessive wear of screw pump rotor.
Good effect, the present invention is connected one with universal device and anti-dropping device by connector, two ends be installed in respectively on the screw pump and sucker rod on, have Stability Analysis of Structures, firm, prevent the eccentric and vibration of screw pump, increase the service life, shorten maintenance cycle, improve the characteristics of tar productivity.The screw pump of suitable oil field operation is connected application with sucker rod.
Description of drawings
Fig. 1 is a sucker rod anticreep of the present invention device structural representation placed in the middle
Among the figure, 1. sucker rod, 2. universal device, 3. connector, 4. anti-dropping device, 5. screw pump link, 6. anti-dropping device groups of springs.
The specific embodiment
According to the figure, sucker rod 1 is connected on the universal device 2, and screw pump is connected on the anti-dropping device 4 by screw pump link 5, interts to be connected with connector 3 between universal device and anti-dropping device, and anti-dropping device groups of springs 6 is installed on the anti-dropping device.
Connector is a tubular structure, and the one end is inserted in the connecting hole of universal device, and makes connector and universal device fastening by screw thread or welding.
The connector other end is fastened in the cover, and is fastenedly connected by the link of screw thread and anti-dropping device.
Connector adopts the heat rammer to forge technology and makes.
Because connector is forged processes by rammer and is made, so structure densification, bonding strength is big, twisting resistance is big, so can guarantee being connected firmly of sucker rod, operate steadily, be unlikely to cause the running that is connected in of sucker rod, universal device and anti-dropping device to be vibrated, thereby the operation that guarantees screw pump is normally stable, is unlikely to cause country's wearing and tearing of screw pump rotor.
The groups of springs of being installed on the anti-dropping device can absorb the rotation vibrations of anti-dropping device, and screw pump is operated steadily.
Use of the present invention
Screw pump is connected on the anti-dropping device by the screw pump link, and anti-dropping device is connected with universal device by connector again, and universal device is connected with the sucker rod endless.When screw pump rotates, drive anti-dropping device, connector and the rotation of universal device, make the sucker rod rotation simultaneously, carry out down-hole oil pumping operation.
Characteristics
When centering device of the present invention is installed on the sucker rod, sucker rod, universal device and anti-dropping device are turned round simultaneously, compare with the mode of the universal device of connection segment and anti-dropping device, can reduce the rotating eccentricity vibration, prevent coming off of sucker rod and universal device, make simultaneously the sucker rod operation smooth and easy, thereby reduce fault, improve oil recovery efficiency.
1, this centering device can bear power, torsion, and it passes to the rotation torque of sucker rod the rotor of screw pump.
2, the eccentric throw that screw pump stator and rotor produce can be eliminated or reduce to this centering device.
3, this centering device eccentric angle is adjustable, can 360 ° universal, its effect is that screw pump rotor is played certralizing ability within the specific limits, the vibration that can alleviate rod string simultaneously, improve the use enlistment age of screw pump and sucker rod, and prolonged pump detection period, reduce the cost for oil production in oil field.
Claims (1)
1. sucker rod anticreep device placed in the middle, it is characterized in that: sucker rod (1) is connected on the universal device (2), screw pump is connected on the anti-dropping device (4) by screw pump link (5), between universal device and anti-dropping device, intert and be connected with connector (3), anti-dropping device groups of springs (6) is installed on the anti-dropping device;
Connector is a tubular structure, and the one end is inserted in the connecting hole of universal device, and makes connector and universal device fastening by screw thread or welding;
The connector other end is fastened in the cover, and is fastenedly connected by the link of screw thread and anti-dropping device;
Connector adopts the heat rammer to forge technology and makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590936 CN102071880A (en) | 2010-12-16 | 2010-12-16 | Anti-falling centering device for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010590936 CN102071880A (en) | 2010-12-16 | 2010-12-16 | Anti-falling centering device for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102071880A true CN102071880A (en) | 2011-05-25 |
Family
ID=44030617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010590936 Pending CN102071880A (en) | 2010-12-16 | 2010-12-16 | Anti-falling centering device for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071880A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828699A (en) * | 2012-09-21 | 2012-12-19 | 山东墨龙石油机械股份有限公司 | Anti-torsion sucker rod |
| CN111102189A (en) * | 2020-01-19 | 2020-05-05 | 广东斯坦德流体系统有限公司 | Transmission system and deep well screw pump |
| CN111594436A (en) * | 2020-06-16 | 2020-08-28 | 杭州乾景科技有限公司 | Universal coupling and shock absorber integrated mounting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3887196A (en) * | 1973-10-09 | 1975-06-03 | William Neil Renfrow | Self aligning stuffing box |
| CN2198447Y (en) * | 1994-02-05 | 1995-05-24 | 黄东 | Anti-drop device for screw rod pump oil production system |
| CN201047257Y (en) * | 2007-04-25 | 2008-04-16 | 葫芦岛龙源采油机电设备有限公司 | Anti-drop device for screw pump sucker rod |
| CN201083087Y (en) * | 2007-05-21 | 2008-07-09 | 田占淑 | Inclined well and horizontal well pumping rod deflected-abrasion-resisting universal connector |
| CN201363123Y (en) * | 2009-01-20 | 2009-12-16 | 杜洋 | Oil extracting device of directional well screw pumps |
-
2010
- 2010-12-16 CN CN 201010590936 patent/CN102071880A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3887196A (en) * | 1973-10-09 | 1975-06-03 | William Neil Renfrow | Self aligning stuffing box |
| CN2198447Y (en) * | 1994-02-05 | 1995-05-24 | 黄东 | Anti-drop device for screw rod pump oil production system |
| CN201047257Y (en) * | 2007-04-25 | 2008-04-16 | 葫芦岛龙源采油机电设备有限公司 | Anti-drop device for screw pump sucker rod |
| CN201083087Y (en) * | 2007-05-21 | 2008-07-09 | 田占淑 | Inclined well and horizontal well pumping rod deflected-abrasion-resisting universal connector |
| CN201363123Y (en) * | 2009-01-20 | 2009-12-16 | 杜洋 | Oil extracting device of directional well screw pumps |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828699A (en) * | 2012-09-21 | 2012-12-19 | 山东墨龙石油机械股份有限公司 | Anti-torsion sucker rod |
| CN102828699B (en) * | 2012-09-21 | 2015-02-11 | 山东墨龙石油机械股份有限公司 | Anti-torsion sucker rod |
| CN111102189A (en) * | 2020-01-19 | 2020-05-05 | 广东斯坦德流体系统有限公司 | Transmission system and deep well screw pump |
| CN111594436A (en) * | 2020-06-16 | 2020-08-28 | 杭州乾景科技有限公司 | Universal coupling and shock absorber integrated mounting structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110525 |