CN2470527Y - Anti-trip drive sucker-rod for screw pump - Google Patents
Anti-trip drive sucker-rod for screw pump Download PDFInfo
- Publication number
- CN2470527Y CN2470527Y CN 00254398 CN00254398U CN2470527Y CN 2470527 Y CN2470527 Y CN 2470527Y CN 00254398 CN00254398 CN 00254398 CN 00254398 U CN00254398 U CN 00254398U CN 2470527 Y CN2470527 Y CN 2470527Y
- Authority
- CN
- China
- Prior art keywords
- rod
- screw pump
- box cupling
- flange
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Disclosed is a screw pump anti-disengaging drive sucker rod, which comprises rod bodies, a coupling and a lock nut. One end of the rod body is provided with a flange and the other end is provided with a groove. When the rod bodies are inter-connected, the flange of the rod body is embedded into the groove of the other rod body; the coupling is connected to the outside of the connected part of two rod bodies by screw thread. The lock nut is locked at one end of the coupling. The utility model has the advantages of completely elimination of the disengaging of the attachments of the sucker rod and improved work efficiency of the screw pump.
Description
The utility model relates to the anti-tripping driving sucker rod of a kind of screw pump, and described sucker rod mainly is to be used for the Oilfield using screw pump oil production.
At present when using screw pump oil production; usually sucker rod is the drive rod as screw pump; as shown in Figure 3, it mainly is made up of the body of rod 1 ' and box cupling 2 ', and body of rod upper end links to each other with electronic by polished rod during use; lower end and screw pump rotor join; by box cupling 2 ' continuous transfer torque, owing to inertia and elasticity, sucker rod reverses when needs are shut down between the body of rod; at this moment the phenomenon of can threading off of the box cupling junction between two bars, thus adverse effect brought to production.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of device that can prevent pumping rod disengaging is provided, to improve the operating efficiency of screw pump.
The purpose of this utility model realizes by following proposal, the anti-tripping driving sucker rod of screw pump of the present utility model comprises the body of rod, box cupling, it is characterized in that also comprising cap fully, one end of the wherein said body of rod has a flange, and the other end has a groove, when the body of rod connected, the flange portion of its body of rod just in time can be embedded in the groove of another body of rod and externally be connected with box cupling by screw thread, and above-mentioned cap fully is locked at a distolateral place of box cupling.
Operating principle of the present utility model is that the flange of the body of rod one end and the recessed edge of another body of rod one end cooperatively interact, and with box cupling by being threaded, with being equipped with cap locking, like this by after several above-mentioned identical connections, make and connect drive motors on it, connect screw pump rotor down.
During work; be equipped with the cap end face with the other end between dependence box cupling both ends of the surface and the body of rod one end shoulder between the body of rod pretightning force is provided; when drive rod just changes; rod end of body screw thread transmits torque with being connected of box cupling screw thread; shutting down the counter-rotating of moment or motor; the body of rod and box cupling are under the effect of inertia force; the generation relative movement trend is arranged; but because the flange and the groove of body of rod end cooperatively interact; the box cupling both sides body of rod is rotated in the same way with short-term training; avoid the relative motion between the body of rod and the box cupling, thereby reached anti-tripping purpose.
The utility model has the advantages that it has fundamentally eliminated the dropout phenomenon of office, sucker rod auxiliary section, improved the operating efficiency of screw pump.
Further describe structure of the present utility model below in conjunction with accompanying drawing, wherein:
Fig. 1 is the general assembly drawing of the anti-tripping driving sucker rod of screw pump of the present utility model;
Fig. 2 is the duty assembling drawing of the anti-tripping driving sucker rod of screw pump of the present utility model;
Fig. 3 is the duty assembling drawing that traditional screw pump drives sucker rod.
Now referring to Fig. 1 and Fig. 2, the anti-tripping driving sucker rod of screw pump of the present utility model comprises the body of rod 1, box cupling 3 and be equipped with cap 2, wherein an end of the body of rod 1 has flange a, and the other end has groove b, when the body of rod 1 interconnects, the protuberance a of one end of the one body of rod 1 just in time is embedded in the groove b of another body of rod 1 one ends, the box cupling 3 that connects by screw thread is arranged in the outside of junction, above-mentioned be equipped with the side that cap 2 is locked at box cupling 3, prevent the phenomenon generation of dropout in so just can be in working order between the body of rod 1.
Claims (1)
1, the anti-tripping driving sucker rod of a kind of screw pump, it comprises the body of rod (1), box cupling (3), it is characterized in that, it also comprises cap (2) fully, and wherein an end of the body of rod (1) has flange (a), and the other end has groove (b), when asking of the body of rod (1) interconnects, the flange (a) of its body of rod (1) is embedded within the groove (b) of another body of rod (1), and the box cupling (3) that connects by screw thread is arranged in the outside of junction, and above-mentioned cap (2) fully is locked at a side of box cupling (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254398 CN2470527Y (en) | 2000-09-27 | 2000-09-27 | Anti-trip drive sucker-rod for screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254398 CN2470527Y (en) | 2000-09-27 | 2000-09-27 | Anti-trip drive sucker-rod for screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2470527Y true CN2470527Y (en) | 2002-01-09 |
Family
ID=33611659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00254398 Expired - Fee Related CN2470527Y (en) | 2000-09-27 | 2000-09-27 | Anti-trip drive sucker-rod for screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2470527Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999982B (en) * | 2007-01-09 | 2010-10-06 | 杜文刚 | Connecting hoop presetting sucker rod |
| WO2010142142A1 (en) * | 2009-06-11 | 2010-12-16 | 山东九环石油机械有限公司 | Socket type sucker rod special for screw pump |
-
2000
- 2000-09-27 CN CN 00254398 patent/CN2470527Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999982B (en) * | 2007-01-09 | 2010-10-06 | 杜文刚 | Connecting hoop presetting sucker rod |
| WO2010142142A1 (en) * | 2009-06-11 | 2010-12-16 | 山东九环石油机械有限公司 | Socket type sucker rod special for screw pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |