CN1015016B - Joint of sucker rod - Google Patents
Joint of sucker rodInfo
- Publication number
- CN1015016B CN1015016B CN 89105881 CN89105881A CN1015016B CN 1015016 B CN1015016 B CN 1015016B CN 89105881 CN89105881 CN 89105881 CN 89105881 A CN89105881 A CN 89105881A CN 1015016 B CN1015016 B CN 1015016B
- Authority
- CN
- China
- Prior art keywords
- joint
- tooth
- male joint
- several
- sucker rod
- 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
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention provides a sucker rod joint which is composed of a pin joint, a box joint and a claw-shaped sleeve. The present invention is characterized in that the sucker rod joint adopts a method of fastener connection and circumferential positioning. The sucker rod joint can be assembled or disassembled without any tool, which is convenient and time-saving. The accidents of fracture, inverted buckling, etc. caused by prestressing force can not occur.
Description
The present invention relates to a kind of rod connector.
In prior art, general flat employing screwed connection between the rod connector.Owing to need tighten during last button, to produce pretightning force between the joint, the above shackle of institute is all relatively required great effort, and is also time-consuming.Simultaneously, correspondingly to produce prestressing force in the fittings body.If overtorquing, prestressing force can surpass the yield limit of material, thereby joint is ruptured in the course of the work.If twist not tightly, may make joint back-off in the course of the work again.These accidents happen occasionally, and oil gas well mining has been caused greater loss.At present,, often on sucker rod, connect anti-dropping device in order to prevent back-off, both burdensome, very unreliable again.
Disclose a kind of easily detachable tube connector in SU1070295, male joint has several straight-tooth outward, and female joint one end also has several straight-tooth, and inserts in the teeth groove of male joint.Split ring is stuck in the groove on the straight-tooth of male joint and female joint, and male joint and female joint are coupled together.Be fixed in the cannelure of female joint with the end of a screw with a flat elastic positioning pin, the other end puts in the breach of split ring again, circumferentially moves in order to the restriction split ring, and the straight-tooth in the male joint can not skidded off from the angle groove of split ring.If employed joint adopts this structure between the sucker rod of drive deep well pump reciprocating motion of the pistons, no matter be to install, still dismounting all uses the rod connector of screwed connection slow than existing.And assembling has a bigger end play between later male joint and the female joint, can relatively move.At present, every mouthful of pumpingh well needs about 100 of rod connectors, sucker rod could be coupled together.Its accumulation gap is just bigger, and this is to use deep well pump suction institute unallowable.
The objective of the invention is to avoid above-mentioned weak point of the prior art and a kind of novel rod connector is provided.When installing and removing this joint, both laborsaving, save time again.The accidents such as fracture that back-off can not take place or caused by prestressing force in the use can not produce bigger end play yet.
Purpose of the present invention can reach by following measure: a kind of rod connector, it comprises a male joint and a female joint, in the male joint He in the female joint several straight-tooth is arranged all.Its special character is between several straight-tooth several straight-tooth and bottom surface in female joint of male joint end that the several piece calvus of claw type cover inserts respectively within several teeth groove of male joint middle part and female joint.
Purpose of the present invention can also reach by following measure: the shape of the tooth cross section at male joint end and middle part is identical with size, and the distribution orientation of tooth is also identical.
Purpose of the present invention can also reach by following measure: several cannelure is arranged, respectively with adjacent calvus dislocation certain angle in the claw type trepanning.
The present invention has following advantage compared to existing technology: because the mode that has adopted buckle to connect and circumferentially locate between the rod connector, joint connects and do not need pretightning force, need not just can install and remove by any instrument, and is both light, saves time again.And accidents such as the joint breaking that caused by prestressing force or back-off can not take place.Simultaneously, the end play of joint is also very little, can not influence the operate as normal of deep well pump.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A sectional drawing among Fig. 1.
Fig. 3 is the B-B sectional drawing among Fig. 1.
Fig. 4 is the C-C sectional drawing among Fig. 1.
The present invention is further described below in conjunction with accompanying drawing: respectively there are three straight-tooth that are distributed on the cylindrical at an end of male joint shown in the figure (1) and middle part, and the distribution orientation is identical.One end of female joint (2) also has three straight-tooth that are distributed on the interior circle.The cross section of these teeth is the part annular, and equal and opposite in direction.Three calvus that are distributed on the circumference are arranged at the bottom of claw type cover (3), and top has three roads to be distributed on cannelure in the hole, and respectively with 60 ° of adjacent calvus dislocation.Before the use, the straight-tooth of male joint (1) outside passes the groove in claw type cover (3) hole, then, rotates an angle slightly, makes claw type cover (3) be pre-installed in the outside of male joint (1), the top of tooth.If two joints will be coupled together, can make the straight-tooth of male joint (1) end pass that the teeth groove on the circle arrives at the bottom of the hole in the female joint (2), rotate 60 ° then, at this moment, the straight-tooth fastening in male joint (1) and the female joint (2).Three calvus on the claw type cover (3) are injected respectively in the teeth groove of male joint (1) middle part and female joint (2) end again, the straight-tooth that is fastening can relatively not rotated, promptly two joints that connecting can not unclamp.If will dismantle two joints, earlier claw type cover (3) is proposed in teeth groove, then, make male joint (1) rotate 60 °, to carry on again, then male joint (1) breaks away from female joint (2).In addition, male joint (1) and female joint (2) are passed through the screwed connection of itself respectively on the joint of existing sucker rod, notice that pretightning force can not be excessive, and in screwed connection place spot welding or bonding.
Claims (3)
1, a kind of rod connector, it comprises a male joint (1) and a female joint (2), in the male joint He in the female joint several straight-tooth are arranged all, several straight-tooth that it is characterized in that male joint (1) end are positioned between several straight-tooth and bottom surface of female joint (2), and the several piece calvus of claw type cover (3) inserts respectively within several teeth groove of male joint (1) middle part and female joint (2).
2, rod connector according to claim 1, it is characterized in that male joint (1) end and middle part the tooth cross section shape with the size identical, the distribution orientation of tooth is also identical.
3, rod connector according to claim 1 and 2 is characterized in that in claw type cover (3) hole several cannelure being arranged, respectively with adjacent calvus dislocation certain angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105881 CN1015016B (en) | 1989-03-25 | 1989-03-25 | Joint of sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105881 CN1015016B (en) | 1989-03-25 | 1989-03-25 | Joint of sucker rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046014A CN1046014A (en) | 1990-10-10 |
| CN1015016B true CN1015016B (en) | 1991-12-04 |
Family
ID=4856515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105881 Expired CN1015016B (en) | 1989-03-25 | 1989-03-25 | Joint of sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015016B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076926A (en) * | 2008-06-27 | 2011-05-25 | 石油国家工业（英国）有限公司 | Pipe connector device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179462A (en) * | 2014-09-01 | 2014-12-03 | 无锡中地地质装备有限公司 | Connecting structure of geological prospecting drill rod |
| CN105239588A (en) * | 2015-09-24 | 2016-01-13 | 大连大金马基础建设有限公司 | Bidirectional rapid connection joint |
| CN105937370B (en) * | 2016-07-06 | 2019-09-17 | 福建省正丰信息技术发展有限公司 | A kind of bolt-type tool joint |
-
1989
- 1989-03-25 CN CN 89105881 patent/CN1015016B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076926A (en) * | 2008-06-27 | 2011-05-25 | 石油国家工业（英国）有限公司 | Pipe connector device |
| CN102076926B (en) * | 2008-06-27 | 2014-11-26 | 石油国家工业（英国）有限公司 | Pipe connector device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046014A (en) | 1990-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |