CN206376759U - A kind of three cambered surfaces spin rotary sucker rod centering guide - Google Patents
A kind of three cambered surfaces spin rotary sucker rod centering guide Download PDFInfo
- Publication number
- CN206376759U CN206376759U CN201621387494.4U CN201621387494U CN206376759U CN 206376759 U CN206376759 U CN 206376759U CN 201621387494 U CN201621387494 U CN 201621387494U CN 206376759 U CN206376759 U CN 206376759U
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- wiper block
- cambered surface
- centering guide
- rod centering
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of three cambered surface spin rotary sucker rod centering guide, including rod collar, top connection, wiper block and the lower contact being sequentially connected from top to bottom by central shaft；The wiper block is socketed on center shaft by bushing, and wiper block is in three surface helix arc faceted pebble structures.The centralizer can reduce sucker rod in oil recovery process and be worn and torn with tube inner wall, play centralizing function；And centralizer body is contacted with tube inner wall for face, positive contact stress is reduced.The design of helical form guiding gutter, alleviates the generation of wiper block eccentric wear phenomenon simultaneously.The service life and oil well that above-mentioned design substantially prolongs whole centralizer are excused from a college course the phase.
Description
Technical field
The utility model belongs to oil field machinery oil technical field, is a kind of three cambered surfaces spin rotary sucker rod centering guide.
Background technology
During sucker rod pumping, sucker rod is moved back and forth in oil pipe, and R a T can not in relative motion
The presence abrasion avoided, the large-scale popularization application of particularly current inclined shaft and directional well, sucker rod is easier to occur in oil pipe
Flexural deformation, R a T wall occurs friction and causes oil pipe or sucker rod to wear and tear, damage, and sucker rod occurs disconnected when serious
It is de-, have a strong impact on the normal production of oil well.Primarily now Prevention Technique means are exactly to increase wear-resisting help between oil pipe and beam hanger
Positive material.Oil pumping rod centering device is widely used as agent technology, between sucker rod, plays sucker rod stabilizing and guarantor
Oil pipe, sucker rod are protected, extends the purpose of oil well repair free period.
At present, conventional oil pumping rod centering device mainly has rolling wheel centralizer, two-way protective coupling, nylon centralising device etc..Rolling
Although taking turns the rolling friction that can be changed into the sliding friction between tube rod of centralizer, reduce coefficient of friction, the rolling of rolling wheel centralizer
Wheel is easily stuck on steady pin, causes roller to rotate dumb；Two-way protective coupling outer surface is sprayed with solid lubricant,
Coefficient of friction between tube rod is reduced, but it is different from tube inner wall curvature, is each other linear contact, contact is larger, no
Tube rod abrasion generation can effectively be prevented；Conventional nylon centralizer is generally prism-shaped moulding, is generally linear contact lay with pipe inner surface, resistance to
Mill property is poor, and easily formation eccentric wear, effective abrasionproof phase is short.
Utility model content
In order to overcome existing centralizer to wear no resistance, easily form eccentric wear, the problem of effective abrasionproof phase is short, the utility model is carried
For a kind of three cambered surface spin rotary sucker rod centering guide, it can ensure that sucker rod during underground work, it is to avoid to be rubbed with oil pipe
Wiping causes oil pipe or sucker rod to wear and tear, damage, and extends oil well repair free period.
Embodiment of the present utility model is adopted the following technical scheme that：
The one embodiment provided according to the utility model, the utility model provides a kind of three cambered surface spin rotary sucker rod
Centralizer, including rod collar, top connection, wiper block and the lower contact being sequentially connected from top to bottom by central shaft；It is described to help
Positive block is socketed on center shaft by bushing, and wiper block is in three surface helix arc faceted pebble structures.
Further, the top connection and lower contact are equipped with the internal thread being engaged with central shaft external screw thread, and top connection
The recess for taking spanner is equipped with the periphery two side of lower contact.
Further, the bushing be located at central shaft it is outer and and central axis, bushing can rotate freely along central shaft, and
The spacing movement between upper lower contact.
Further, the wiper block is coated on sleeve outer surface by Shooting Technique, and isometric with bushing.
Further, the wiper block outer surface by three in the shape of a spiral distribution, each other the arc faceted pebble at 120 degree of angles constitute,
It is the guiding gutter of Spiral distribution between each arc faceted pebble of wiper block.
Further, the arc faceted pebble is made up of two adjacent complementary cambered surfaces, the curvature and tube inner wall of each cambered surface
Curvature is identical.
Further, the upper and lower end face of the wiper block has 50 degree of chamfering respectively.
The utility model one kind three cambered surfaces spin rotary sucker rod centering guide, is connected on sucker rod, reduces in oil recovery process
Sucker rod weares and teares with tube inner wall, and wiper block can play centralizing function, and centralizer body is contacted with tube inner wall for face, is reduced
Positive contact stress.The design of helical form guiding gutter, alleviates the generation of wiper block eccentric wear phenomenon simultaneously.Above-mentioned design is prolonged significantly
The service life and oil well for having grown whole centralizer are excused from a college course the phase.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model wiper block front view.
Fig. 3 is wiper block top view.
In figure：1st, rod collar；2nd, top connection；3rd, central shaft；4th, bushing；5th, wiper block；6th, lower contact；7th, water conservancy diversion
Groove.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in figure 1, a kind of three cambered surfaces spin rotary sucker rod centering guide, including be sequentially connected from top to bottom by central shaft 3
Rod collar 1, top connection 2, wiper block 5 and lower contact 6；Top connection 2 and lower contact 6 are equipped with and the external screw thread of central shaft 3
The internal thread being engaged, and the periphery two side of top connection 2 and lower contact 6 is equipped with the recess for taking spanner.Bushing 4 is located at center
Axle 3 it is outer and and central axis, bushing can be rotated freely along central shaft 3, and the spacing movement between upper lower contact 2.Righting
Block 5 is coated on the outer surface of bushing 4 by Shooting Technique, and isometric with bushing.
As shown in Figure 2,3, wiper block 5 is in three surface helix arc faceted pebble structures.The outer surface of wiper block 5 by three in the shape of a spiral
The arc faceted pebble at distribution, each other 120 degree of angles is constituted, and is the guiding gutter 7 of Spiral distribution between each arc faceted pebble of wiper block 5.Arc
Shape faceted pebble is made up of two adjacent complementary cambered surfaces, and the curvature of each cambered surface is identical with tube inner wall curvature, wiper block 5 it is upper,
There is 50 degree of chamfering lower surface respectively.
The utility model is to be connected to by upper lower contact and rod collar between sucker rod；Wiper block upper and lower side is distinguished
There is 50 degree of chamfering, can reduce and loosened due to the impact that misoperation is caused to wiper block during sucker rod is removed
Or the phenomenon come off, and can be in sucker rod motion process is reduced, up and down in stroke, oily duct fluid flow is to whole sucker rod
The resistance that post is caused；Wiper block outer surface is made up of the cambered surface at three 120 degree of angles each other, the curvature and tube inner wall of each cambered surface
Curvature is identical, and can be rotated freely along central shaft.Sucker rod up and down motion during, three cambered surface wiper blocks any one
Face can realize that face is contacted all the time with tube inner wall, greatly reduce the positive contact stress between wiper block and tube inner wall,
Under identical active force and righting stock material, the abrasionproof life-span of wiper block is extended；It is distributed with respectively in each cambered surface of wiper block
Spiral helicine guiding gutter, while the area of passage of wiper block is increased, spiral helicine guiding gutter so that wiper block is having liquid stream
When passing through, there can be certain angle rotation, alleviate the generation of wiper block eccentric wear phenomenon, extend the service life of wiper block.
The utility model is not limited to above-described embodiment, on the basis of technical scheme disclosed in the utility model, this
The technical staff in field is according to disclosed technology contents, it is not necessary to which performing creative labour just can be special to some of which technology
Levy and make some replacements and deform, these are replaced and deformed in protection domain of the present utility model.
Claims (7)
- The rotary sucker rod centering guide 1. a kind of three cambered surface spins, it is characterised in that:Including being sequentially connected from top to bottom by central shaft (3) Rod collar (1), top connection (2), wiper block (5) and lower contact (6)；The wiper block (5) is socketed in by bushing (4) On central shaft (3), wiper block (5) is in three surface helix arc faceted pebble structures.
- The rotary sucker rod centering guide 2. three cambered surface according to claim 1 spins, it is characterised in that the top connection (2) and Lower contact (6) is equipped with the internal thread being engaged with central shaft (3) external screw thread, and the periphery two of top connection (2) and lower contact (6) Side wall is equipped with the recess for taking spanner.
- The rotary sucker rod centering guide 3. three cambered surface according to claim 1 spins, it is characterised in that the bushing (4) is located at Central shaft (3) outside and and central axis, bushing can rotate freely along central shaft (3), and spacing between upper lower contact (2) It is mobile.
- The rotary sucker rod centering guide 4. three cambered surface according to claim 1 spins, it is characterised in that the wiper block (5) is led to Cross Shooting Technique and be coated on bushing (4) outer surface, and it is isometric with bushing.
- The rotary sucker rod centering guide 5. three cambered surface according to claim 1 spins, it is characterised in that the wiper block (5) is outside Surface by three in the shape of a spiral distribution, each other the arc faceted pebble at 120 degree angles constitute, wiper block (5) is each between arc faceted pebble The guiding gutter (7) of Spiral distribution.
- The rotary sucker rod centering guide 6. three cambered surface according to claim 1 spins, it is characterised in that the arc faceted pebble is by two Individual adjacent complementary cambered surface is constituted, and the curvature of each cambered surface is identical with tube inner wall curvature.
- The rotary sucker rod centering guide 7. three cambered surface according to claim 1 spins, it is characterised in that the wiper block (5) Upper and lower end face has 50 degree of chamfering respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387494.4U CN206376759U (en) | 2016-12-16 | 2016-12-16 | A kind of three cambered surfaces spin rotary sucker rod centering guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387494.4U CN206376759U (en) | 2016-12-16 | 2016-12-16 | A kind of three cambered surfaces spin rotary sucker rod centering guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206376759U true CN206376759U (en) | 2017-08-04 |
Family
ID=59407089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621387494.4U Active CN206376759U (en) | 2016-12-16 | 2016-12-16 | A kind of three cambered surfaces spin rotary sucker rod centering guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206376759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138860A (en) * | 2018-09-13 | 2019-01-04 | 张自平 | Efficient eccentric wear prevention pumping rod guide and application method |
-
2016
- 2016-12-16 CN CN201621387494.4U patent/CN206376759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138860A (en) * | 2018-09-13 | 2019-01-04 | 张自平 | Efficient eccentric wear prevention pumping rod guide and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206376759U (en) | A kind of three cambered surfaces spin rotary sucker rod centering guide | |
| CN206376760U (en) | A kind of big runner spin rotary sucker rod centering guide | |
| CN201747286U (en) | Ball abrasion-reducing torsion-decreasing joint | |
| CN201972625U (en) | Rotary sucker rod centralizer | |
| CN205936435U (en) | Sucker rod self -lubricating spiral centralizer | |
| CN104405298A (en) | Self-cleaning roller stabilizer for oil-field well drilling | |
| CN2779040Y (en) | Partial abrasion proof centralizer of pumping rod | |
| CN206071478U (en) | Oil pipe antiwear and reducing friction device | |
| CN205154020U (en) | Rotatory steerable drilling guide vane elbow of system of directional formula | |
| CN2881065Y (en) | Metal centering guide of screw pump oil extraction rod | |
| CN2804366Y (en) | Wear-proof device for oil filling tube of sucker rod | |
| CN202467696U (en) | Accurate anti-abrasion and torque-reduction device for well drilling pipe | |
| CN207268161U (en) | A kind of sucker rod rotary anti-abrasion device and its connecting shaft | |
| CN201165851Y (en) | Self-adjusting anti-wear protection sucker rod coupling | |
| CN202745732U (en) | Low friction sucker rod centering device | |
| CN205558831U (en) | Two -way protection eccentric wear prevention device of pipe pole | |
| CN103334705A (en) | Novel sucker rod centering device | |
| CN202483473U (en) | Eccentric-abrasion-proof automatic centering and centralizing device of oil sucking rod | |
| CN205000910U (en) | But nearly drill bit righting device of reducing | |
| CN202176277U (en) | Self-lubricating and same-curvature ceramic compound dip rod straightener | |
| CN215485901U (en) | Flexible wear-resistant sucker rod coupling | |
| CN201934029U (en) | Anti-friction, anti-sticking and anti-wear tool for drilling tool | |
| CN206830076U (en) | A kind of centralizer | |
| CN204609795U (en) | Unload power formula oil pumping rod centering device | |
| CN103334704A (en) | Rolling type eccentric wear preventing coupling capable of realizing rotation and revolution for sucker rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |