CN203430435U - Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution - Google Patents
Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution Download PDFInfo
- Publication number
- CN203430435U CN203430435U CN201320372535.2U CN201320372535U CN203430435U CN 203430435 U CN203430435 U CN 203430435U CN 201320372535 U CN201320372535 U CN 201320372535U CN 203430435 U CN203430435 U CN 203430435U
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- ball
- sucker rod
- abrasion resistant
- rolling type
- eccentric abrasion
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Abstract
The utility model discloses a rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution in the technical field of oil exploitation downhole tools. The rolling type sucker rod eccentric abrasion resistant coupling comprises an upper connector and a lower connector, wherein the upper connector is connected with the lower connector in a threaded mode, a diameter reducing section is arranged between the upper connector and the lower connector, the diameter reducing section is movably sleeved with a supporting sleeve, a plurality of ball holes which penetrate through the wall of the supporting sleeve are distributed in the outer surface of the supporting sleeve, balls are arranged in the ball holes, pressing rings which block the balls are arranged outside the ball holes, one side of each ball protrudes out of the inner surface of the supporting sleeve and is matched with the surface of the diameter reducing section, and the other side of each ball protrudes out of the outer surface of the supporting sleeve. When the rolling type sucker rod eccentric abrasion resistant coupling is used, the plurality of rolling type sucker rod eccentric abrasion resistant couplings are connected onto a sucker rod and move up and down inside an oil pipe along with the sucker rod, and therefore abrasion caused by slide friction between an existing rolling type sucker rod eccentric abrasion resistant coupling and an oil pipe is eliminated. Meanwhile, the supporting sleeve can rotate relative to the upper connector or the lower connector, and therefore eccentric abrasion to the rolling type sucker rod eccentric abrasion resistant coupling is reduced, and the rolling type sucker rod eccentric abrasion resistant coupling has the advantages of being good in use performance and long in service life.
Description
Technical field
The utility model relates to a kind of oil exploitation downhole tool, and particularly a kind of rod collar, belongs to oil exploitation device technique field.
Background technology
In oil exploitation process, sucker rod moves up and down in oil pipe, the support set distortion that the hole deviation that need to cause because of drilling well factor or geology and deviated directional drilling formation creep cause all can make oil pipe cause bending, its body of rod and joint all will produce friction with tube inner wall, and the friction of joint and tube inner wall is more outstanding, thereby wearing and tearing, especially deep-well, high angle hole, horizontal well of easily causing tube inner wall, sucker rod body and joint etc. are even more serious.In scene, find, most rod collars see it is intact from a side, and opposite side heavy wear.It is that bar is disconnected de-, pipe leaks the well of lying that pumpingh well side-abrasion of rod string causes the most direct consequence, has affected oily well yield, has directly affected the economic benefit of oil well, simultaneously, the expense of changing operation on oil pipe bar, the expense of oil pumping rod of oil tube, is all to cause one of reason that cost is high.
The problems such as for addressing the above problem, the Anti-eccentric wear coupling of sucker rod in the past adopting, mostly adopts the nonmetals such as nylon to make, and its existence self anti-wear performance is poor, and application life is short.The anti-bias wearing joint hoop made from the high metal material of case hardness, what produce due to anti-bias wearing joint hoop external surface and tube inner wall is the friction of line contact slide, and the time has been grown, and tube inner wall will be worn into one to zanjon, and even worn out oil pipe, causes the breakage of oil pipe.At present, eliminate the Anti-eccentric wear coupling of sucker rod using and be commonly sliding friction, frictional force is large, has increased the load of oil pumper, has wasted the energy.
Utility model content
The purpose of this utility model is to provide a kind of tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun, be intended to solve anti-bias wearing joint hoop and tube inner wall generation sliding friction in prior art and cause box cupling easy to wear, the problem that application life is short, cost is high, operating efficiency is low.
The purpose of this utility model is achieved in that a kind of tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun, comprise top connection and lower contact, between top connection and lower contact, be threaded, between top connection and lower contact, be provided with a undergauge section, in described undergauge section, be movably installed with support set, support set external surface is distributed with some ball holes that support jacket wall that run through, in ball hole, be provided with ball, ball hole outside is provided with the trim ring that stops ball, one pleurapophysis of described ball matches for support set inner surface and with undergauge section surface, the opposite side of ball protrudes from support set external surface.
During use, on rod string, connect a plurality of Anti-eccentric wear coupling of sucker rods described in the utility model, ball can rotation, also can revolve round the sun around undergauge section, during work, anti-bias wearing joint hoop moves up and down in oil pipe with sucker rod, because ball can roll in ball hole, ball and tube inner wall are realized rolling friction, the wearing and tearing that the sliding friction of anti-bias wearing joint hoop and oil pipe brings have in the past been eliminated, simultaneously, under the support of ball, support set self can rotate with respect to top connection or lower contact, support set can compliance rotate, thereby, when through bend, stressed ball is unfixing, alleviated the eccentric wear of anti-bias wearing joint hoop self, simultaneously, because anti-bias wearing joint hoop is operated in oil-water media, can realize the good lubrication to ball, there is functional performance good, the features such as long service life.
Stressed even for further guaranteeing, described ball is distributed with multilayer, and the ball between adjacent layer shifts to install.When ball hole perforate is more, this technical scheme can guarantee that support set still just has higher intensity.
As further improvement of the utility model, described ball hole inner surface is spherical ball and matches with spherical inner surface, makes ball fixing reliable, can guarantee between ball and undergauge section in good matched in clearance state.
For making support set location good, described undergauge section is provided with the groove of at least one annular, described groove coordinates installation with the ball of relevant position, and the ball diameter packing in groove is larger than the ball diameter of other positions, and the height that all ball protrudes from outside support set is consistent.Ball is upwards positioned support set with coordinating of groove above axle, avoids producing wearing and tearing between its termination and top connection and lower contact, meanwhile, also can guarantee that the chance of whole ball contact oil pipes is identical, avoids concentrated wear.
As further improvement of the utility model, the groove in described undergauge section and the position, upper and lower of support set be corresponding being provided with together respectively.The design of twice groove, has reliable, stable technique effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Wherein, 1 top connection, 2 support sets, 3 balls, 4 trim rings, 5 undergauge sections, 6 lower contacts, 7 grooves.
The specific embodiment
Embodiment 1
As shown in Figure 1, for a kind of tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun, its structure mainly comprises top connection 1 and lower contact 6, between top connection 1 and lower contact 6, be threaded, between top connection 1 and lower contact 6, be provided with a undergauge section 5, this undergauge section 5 is integrated with top connection 1, can be to be also integrated with lower contact 6; In undergauge section 5, be movably installed with support set 2, support set 2 external surfaces are distributed with some ball holes that support jacket wall that run through, ball hole inner surface is spherical, in ball hole, be provided with ball 3, ball hole outside is provided with the trim ring 4 that stops ball 3, one pleurapophysis of ball 3 matches for support set 2 inner surfaces and with undergauge section 5 surfaces, and the opposite side of ball 3 protrudes from support set 2 external surfaces.Ball 3 is evenly distributed with multilayer, and the ball 3 between adjacent layer shifts to install.
During use, on rod string, connect a plurality of these anti-bias wearing joint hoops, during work, anti-bias wearing joint hoop moves up and down in oil pipe with sucker rod, because ball 3 can roll in ball hole, ball 3 is realized rolling friction with tube inner wall, the wearing and tearing that the sliding friction of anti-bias wearing joint hoop and oil pipe brings have in the past been eliminated, simultaneously, under the support of ball 3, support set 2 self can rotate with respect to top connection 1 or lower contact 6, support set 2 can compliance be rotated, thereby, when through bend, stressed ball 3 is unfixing, rotation with support set 2, can convert stressed steel ball, thereby can alleviate the eccentric wear of anti-bias wearing joint hoop self, this anti-bias wearing joint hoop is operated in oil-water media, and ball 3 is lubricated good, has functional performance good, the feature of long service life.
As shown in Figure 2, for the another kind tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun, with the difference of embodiment 1 be in undergauge section 5, to be provided with annular groove 7, this groove 7 matches with the ball 3 of relevant position, ball snaps in groove 7 while installing, support set 2 itself is located in the axial direction, groove 7 can be corresponding with the upper and lower of support set 2 position arrange respectively together, the ball diameter packing in groove 7 is larger than the ball diameter of other positions, but need to guarantee that the height that whole balls 3 protrude from outside support set 2 is consistent, like this, all the chance of ball contact oil pipe is identical, can avoid concentrated wear.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection domain of the present utility model.
Claims (5)
1. the tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun, it is characterized in that: comprise top connection and lower contact, between top connection and lower contact, be threaded, between top connection and lower contact, be provided with a undergauge section, in described undergauge section, be movably installed with support set, support set external surface is distributed with some ball holes that support jacket wall that run through, in ball hole, be provided with ball, ball hole outside is provided with the trim ring that stops ball, one pleurapophysis of described ball matches for support set inner surface and with undergauge section surface, and the opposite side of ball protrudes from support set external surface.
2. the tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun according to claim 1, is characterized in that: described ball is distributed with multilayer, and the ball between adjacent layer shifts to install.
3. the tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun according to claim 1, is characterized in that: described ball hole inner surface is spherical.
4. according to the tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun described in claim 1-3 any one, it is characterized in that: described undergauge section is provided with the groove of at least one annular, described groove coordinates installation with the ball of relevant position, the ball diameter packing in groove is larger than the ball diameter of other positions, and the height that all ball protrudes from outside support set is consistent.
5. the tumbling-type Anti-eccentric wear coupling of sucker rod that can rotation can revolve round the sun according to claim 4, is characterized in that: the groove in described undergauge section and the position, upper and lower of support set be corresponding being provided with together respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372535.2U CN203430435U (en) | 2013-06-27 | 2013-06-27 | Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372535.2U CN203430435U (en) | 2013-06-27 | 2013-06-27 | Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430435U true CN203430435U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320372535.2U Withdrawn - After Issue CN203430435U (en) | 2013-06-27 | 2013-06-27 | Rolling type sucker rod eccentric abrasion resistant coupling capable of rotation and revolution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334704A (en) * | 2013-06-27 | 2013-10-02 | 济源市石油机械有限公司 | Rolling type eccentric wear preventing coupling capable of realizing rotation and revolution for sucker rod |
-
2013
- 2013-06-27 CN CN201320372535.2U patent/CN203430435U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334704A (en) * | 2013-06-27 | 2013-10-02 | 济源市石油机械有限公司 | Rolling type eccentric wear preventing coupling capable of realizing rotation and revolution for sucker rod |
| CN103334704B (en) * | 2013-06-27 | 2015-12-09 | 济源市石油机械有限公司 | Can rotation can to revolve round the sun tumbling-type Anti-eccentric wear coupling of sucker rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |