CN2077901U - Hollow sucker rod with same diameter - Google Patents
Hollow sucker rod with same diameter Download PDFInfo
- Publication number
- CN2077901U CN2077901U CN 90225278 CN90225278U CN2077901U CN 2077901 U CN2077901 U CN 2077901U CN 90225278 CN90225278 CN 90225278 CN 90225278 U CN90225278 U CN 90225278U CN 2077901 U CN2077901 U CN 2077901U
- Authority
- CN
- China
- Prior art keywords
- box cupling
- hollow section
- seamless hollow
- seamless
- sealing ring
- 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.)
- Withdrawn
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a hollow sucker rod with the same diameter. The outer surface of the end part of a seamless hollow pipe with a uniform wall thickness is provided with threads through rolling and is connected with a coupling by the threads. The end parts of two seamless hollow pipes are processed into a chamfering shape, and two butt-joint end surfaces are contacted tightly, or an oil resisting rubber sealing ring is arranged between the two butt-joint end surfaces, or a sealing tape is additionally arranged in the gap between the coupling and the seamless hollow pipe. The utility model guarantees connection strength and sealing property, and has the advantages of simple manufacturing process and high productive efficiency.
Description
The utility model relates to a kind of latus rectum hollow rod.
At present, to recovery of subterranean thickness oil, Chinese patent " hollow sucker rod oil production process unit " (patent No. 88200317.8) has been introduced a kind of hollow rod, and it is made up of hollow oil pick-up tube, box cupling and sealing ring.The Type of Welding of thickening or external upset (EU) form or inside and outside socket in pipe thread junction wall thickness adopts.To remedy owing to the stress that is processed with screw thread and exists is concentrated the loss of strength that produces.Be added with the sealed nylon circle between box cupling and the tube wall to keep sealing and to prevent to become flexible.The shortcoming of this method of attachment is a pipe end wall process for upsetting complexity, needs special equipment, and the production cycle is long, processing cost is high.
It is even that the purpose of this utility model is to design a kind of whole hollow section wall thickness, the bonding strength between the assurance hollow section and the latus rectum hollow rod of favorable sealing property.
The utility model is design like this, choose the uniform seamless hollow section of wall thickness, its end outer surface adopts rolled thread, the box cupling inner surface adopts thread-rolling screw, make to be round-corner transition between scraggly line, concentrate to avoid producing stress, the method for attachment of seamless hollow section and box cupling can be adopted following form: 1, be processed into chamfering per two ends that are screwed into the seamless hollow section of box cupling along interior external diameter, two butt joint end faces are closely pasted mutually touch, perhaps between its end face, add and put the oil resistant rubber sealing ring.With enhancing sealing effectiveness and increase bearing strength, and be locked; 2, between box cupling and seamless hollow section except that the sealed nylon circle is arranged, add along whole gas pipe thread face and to be equipped with sealant tape, the sub-transition screw-thread ending of tube is locked between box cupling and the seamless hollow section.
The utility model is used for the latus rectum hollow rod of oil exploitation, and evidence processing is simple, does not need special equipment, the production efficiency height, and it is little directly to inject hydrothermal solution matter circulation resistance in the latus rectum hollow stem, energy conservation.
Seamless hollow section of Fig. 1 and box cupling connection layout
Seamless hollow section of Fig. 2 and box cupling connection layout
Seamless hollow section of Fig. 3 and box cupling connection layout
1, seamless hollow section 2, rolled thread
3, box cupling 4, end 5, chamfering
6, oil resistant rubber sealing ring 7, sealing ring
8, sealant tape
Embodiment 1
Choose the uniform seamless hollow section 1 of wall thickness, its end outer surface adopts rolled thread 2, box cupling 3 adopts thread-rolling screw, make to be round-corner transition between scraggly line, concentrate to avoid producing stress, per two ends 4 that are screwed into the seamless hollow section of box cupling, be processed into chamfering 5 along interior external diameter, both ends of the surface are closely pasted mutually touch,, increase bearing strength and be locked to strengthen sealing effectiveness.Add between box cupling and seamless hollow section and be equipped with sealing ring 7.
Choose the uniform seamless hollow section 1 of wall thickness, its end outer surface adopts rolled thread 2, and box cupling 3 adopts thread-rolling screw, makes to be round-corner transition between scraggly line, concentrates to avoid producing stress.Per two ends 4 that are screwed into the seamless hollow section of box cupling, be processed into chamfering 5 along interior external diameter, between both ends of the surface, add and put oil resistant rubber sealing ring 6, to strengthen sealing effectiveness, increase bearing strength, And is locked seamless hollow section and box cupling.Add between box cupling and the seamless hollow section and be equipped with sealing ring 7.
Choose and keep away thick uniform seamless hollow section 1, its end outer surface adopts rolled thread 2, and box cupling 3 adopts thread-rolling screw, makes to be round-corner transition between scraggly line, concentrates to avoid producing stress.Add at per two flanks that are screwed into the seamless hollow section of box cupling and to be equipped with sealing ring 7 and sealant tape 8, be locked by seamless hollow pipe transition screw-thread ending between box cupling and the seamless hollow section.
Claims (1)
1, a kind of oil recovery latus rectum hollow rod, by seamless hollow section, box cupling and sealing ring are formed, and it is characterized in that:
(1) the uniform seamless hollow section end outer surface of wall thickness adopts rolled thread, and the box cupling inner surface adopts thread-rolling screw;
(2) be processed into chamfering per two ends that are screwed into the seamless hollow section of box cupling along interior external diameter, two butt joint end faces:
(i) closely paste mutually and touch, or
Add (ii) and put the oil resistant rubber sealing ring, or
(iii) gapped, between box cupling and seamless hollow section, add and put sealant tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225278 CN2077901U (en) | 1990-12-03 | 1990-12-03 | Hollow sucker rod with same diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90225278 CN2077901U (en) | 1990-12-03 | 1990-12-03 | Hollow sucker rod with same diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077901U true CN2077901U (en) | 1991-05-29 |
Family
ID=4902733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90225278 Withdrawn CN2077901U (en) | 1990-12-03 | 1990-12-03 | Hollow sucker rod with same diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077901U (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 |
| CN102644444A (en) * | 2012-04-24 | 2012-08-22 | 山东东宝钢管有限公司 | Double-seal anti-corrosion water injection well oil pipe |
-
1990
- 1990-12-03 CN CN 90225278 patent/CN2077901U/en not_active Withdrawn
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 |
| CN102644444A (en) * | 2012-04-24 | 2012-08-22 | 山东东宝钢管有限公司 | Double-seal anti-corrosion water injection well oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |