CN208934617U - A kind of oil pumping rod centering device - Google Patents

Abstract

The utility model relates to technical field of auxiliary equipment of pumping, and disclose a kind of oil pumping rod centering device, including mobile jib, the bottom of the mobile jib is fixedly installed with connector, the top of the mobile jib is successively movably installed with rotating ring and rotary sleeve from top to bottom, and the outer surface of the rotary sleeve is uniformly equipped with scraping blade, and the quantity of the scraping blade is six, six sides of the scraping blade far from mobile jib are in curved surface, and the bottom of the rotating ring is fixedly installed with the extension shell right above scraping blade.The oil pumping rod centering device, the scraping block inside shell is hung to be acted on by centrifugal force, so that centrifugal force and the gravity of scraping block itself are greater than the drawing force of spring, stretch out scraping block from the bottom for hanging shell, and scraping block is in and rotates around mobile jib, then the sundries at the top of rotary sleeve can be cleared up, avoids the accumulation of the sundries such as paraffin from excessively causing rotary sleeve and the stuck problem of petroleum pipeline, increases the practicability of the device.

Description

A kind of oil pumping rod centering device

Technical field

The utility model relates to technical field of auxiliary equipment of pumping, specially a kind of oil pumping rod centering device.

Background technique

Oil pumping rod centering device is anti-pumpingh well eccentric wear downhole tool, suitable for the rod-pumped well of eccentric wear, oil pumping rod centering device When work, curved surface slot is offered using the spill spin block outside centralizer, when oil pumping, petroleum is moved upwards, and flows in curved surface slot Dynamic, upward impact force is decomposed, and spill spin block is caused to rotate, to realize that spill spin block strikes off the wax dirt of tube inner wall, simultaneously Scraping effect is uniform.

During extension removes, paraffin can exist with other inner wall impurity to be gradually accumulate at the top of spill spin block existing spill spin block Region, long-term accumulation even affects the speed of oil flow and makes centralizer stuck inside oil pipe, due to oil pipe Inside oil well, maintenance difficult is very big, and maintenance cost is high.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of oil pumping rod centering device, has anti-clogging, uses the longevity Long advantage is ordered, solves existing spill spin block during extension removes, paraffin can exist with other inner wall impurity to be gradually accumulate in Region at the top of spill spin block, long-term accumulation even affect the speed of oil flow and make centralizer stuck in oil pipe Portion, since oil pipe is located inside oil well, maintenance difficult is very big, the high problem of maintenance cost.

The utility model provides the following technical solutions: a kind of oil pumping rod centering device, including mobile jib, and the bottom of the mobile jib is solid Dingan County is equipped with connector, and the top of the mobile jib is successively movably installed with rotating ring and rotary sleeve, the rotary sleeve from top to bottom Outer surface scraping blade is uniformly installed, the quantity of the scraping blade is six, and six sides of the scraping blade far from mobile jib are in curved surface, The bottom of the rotating ring is fixedly installed with the extension shell right above scraping blade, and the top surface for hanging shell inner cavity is fixedly installed with surely Determine loop bar, the inner cavity of the stable loop bar is movably installed with limited block, and the bottom surface of the limited block, which is fixedly installed with, extends soft bar, The bottom for extending soft bar extends to the outside of stable loop bar and is fixedly installed with scraping block, the external activity for extending soft bar Be set with and stablize the spring of pullling outside loop bar, the upper and lower ends for pullling spring respectively with the bottom surface for stablizing loop bar and scrape The top surface of block is fixedly connected.

Optionally, the outer surface of the connector is equipped with installation screw thread.

Optionally, the upper and lower ends of the rotary sleeve are fixedly installed with the limited block outside mobile jib, and mobile jib Outer surface is equipped with groove compatible with limited block, the outside of limited block and groove frictional connection.

Optionally, the bottom for hanging shell is equipped with construction opening, and the size of the size of construction opening and scraping block is mutually suitable Match.

Optionally, the top surface of the limited block is movably installed with protection spring and connects with the top surface transmission for stablizing loop bar inner cavity Connect, the limited block in the initial state with stablize at a distance from loop bar inner chamber bottom surface and hang shell phase at a distance from rotary sleeve top surface Together.

Be compared with the prior art, the utility model have it is following the utility model has the advantages that

1, the oil pumping rod centering device hangs impulse force of the shell by lower section rotational flow petroleum by setting, this strand of impulse force drives Rotating ring and the rotation for hanging shell are hung the scraping block inside shell and are acted on by centrifugal force, so that the gravity of centrifugal force and scraping block itself is big In the drawing force of spring, stretch out scraping block from the bottom for hanging shell, and scraping block is in and rotates around mobile jib, then may be used To clear up the sundries at the top of rotary sleeve, avoid that the accumulation of the sundries such as paraffin excessively causes rotary sleeve and petroleum pipeline is stuck asks Topic, increases the practicability of the device.

2, the oil pumping rod centering device, by traditional spill spin block mode of grooving this at scraping blade oblique weld in Fig. 1 in rotary sleeve Outer surface, to form inclined groove, simplified preparation process avoids single groove and occurs stablizing and causing entire righting The problem of device is scrapped increases the service life of entire centralizer

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is that the utility model scrapes shell schematic diagram of internal structure.

In figure: 1, mobile jib；2, connector；3, rotary sleeve；4, scraping blade；5, rotating ring；6, shell is hung；7, stablize loop bar；8, it limits Position block；9, spring is protected；10, extend soft bar；11, spring is pullled；12, scraping block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of oil pumping rod centering device referring to FIG. 1-2, including mobile jib 1, the bottom of mobile jib 1 are fixedly installed with connector 2, The outer surface of connector 2 is equipped with installation screw thread, and the top of mobile jib 1 is successively movably installed with rotating ring 5 and rotary sleeve from top to bottom 3, the upper and lower ends of rotary sleeve 3 are fixedly installed with the limited block outside mobile jib 1, and the outer surface of mobile jib 1 is equipped with and limit The compatible groove of position block, the outside of limited block and groove frictional connection, the outer surface of rotary sleeve 3 is uniformly equipped with scraping blade 4, scrapes The quantity of piece 4 is six, and six sides of the scraping blade 4 far from mobile jib 1 are in curved surface, and the bottom of rotating ring 5 is fixedly installed with to be located at and scrape Extension shell 6 right above piece 4, the bottom for hanging shell 6 is equipped with construction opening, and the size of the size of construction opening and scraping block 12 is mutually suitable Match, the top surface for hanging 6 inner cavity of shell is fixedly installed with stable loop bar 7, and the inner cavity for stablizing loop bar 7 is movably installed with limited block 8, limited block 8 top surface be movably installed with protection spring 9 with stablize 7 inner cavity of loop bar top surface be sequentially connected, limited block 8 in the initial state with Distance and the extension shell 6 for stablizing 7 inner chamber bottom surface of loop bar are identical at a distance from 3 top surface of rotary sleeve, and the bottom surface of limited block 8 is fixedly installed with Extend soft bar 10, the bottom for extending soft bar 10 extends to the outside of stable loop bar 7 and is fixedly installed with scraping block 12, extends soft bar 10 External activity be set with and stablize outside loop bar 7 and pull spring 11, pull the upper and lower ends of spring 11 respectively with stabilizer The bottom surface of bar 7 is fixedly connected with the top surface of scraping block 12.

In use, the centralizer is mounted on corresponding position first and is prevented inside oil pipe, then oil pipe is taken out Oil, petroleum move upwards, and in the wax dirt for cutting 4 spill spin block of scraping blade and striking off tube inner wall, while petroleum is to upstream, hang at this time shell 6 by To the impulse force of lower section rotational flow petroleum, this strand of impulse force drives rotating ring 5 and hangs the rotation of shell 6, hang scraping block 12 inside shell 6 by It is acted on to centrifugal force, so that centrifugal force and the gravity of scraping block 12 itself are greater than the drawing force of spring, then makes scraping block 12 from extension The bottom of shell 6 is stretched out, and scraping block 12 is in and rotates around mobile jib 1, may finally be carried out to the sundries at 3 top of rotary sleeve clear Reason.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of oil pumping rod centering device, including mobile jib (1), it is characterised in that: the bottom of the mobile jib (1) is fixedly installed with connection The top of part (2), the mobile jib (1) is successively movably installed with rotating ring (5) and rotary sleeve (3), the rotary sleeve from top to bottom (3) outer surface is uniformly equipped with scraping blade (4), and the quantity of the scraping blade (4) is six, and six scraping blades (4) are far from mobile jib (1) side is in curved surface, and the bottom of the rotating ring (5) is fixedly installed with the extension shell (6) right above scraping blade (4), described The top surface for hanging shell (6) inner cavity is fixedly installed with stable loop bar (7), and the inner cavity of the stable loop bar (7) is movably installed with limited block (8), the bottom surface of the limited block (8), which is fixedly installed with, extends soft bar (10), and the bottom for extending soft bar (10) extends to surely Determine the outside of loop bar (7) and be fixedly installed with scraping block (12), the external activity for extending soft bar (10) is set with and stabilizer Bar (7) is external to be pullled spring (11), the upper and lower ends for pullling spring (11) respectively with the bottom surface for stablizing loop bar (7) and scrape The top surface of block (12) is fixedly connected.

2. a kind of oil pumping rod centering device according to claim 1, it is characterised in that: the outer surface of the connector (2) is set There is installation screw thread.

3. a kind of oil pumping rod centering device according to claim 1, it is characterised in that: the upper and lower ends of the rotary sleeve (3) It is fixedly installed with the limited block external positioned at mobile jib (1), and the outer surface of mobile jib (1) is equipped with compatible with limited block recessed Slot, the outside of limited block and groove frictional connection.

4. a kind of oil pumping rod centering device according to claim 1, it is characterised in that: the bottom for hanging shell (6) is equipped with peace Dress opening, and the size of construction opening and the size of scraping block (12) are mutually adapted.

5. a kind of oil pumping rod centering device according to claim 1, it is characterised in that: the top surface activity of the limited block (8) Be set with protection spring (9) with stablize loop bar (7) inner cavity top surface be sequentially connected, the limited block (8) in the initial state with Distance and extension shell (6) for stablizing loop bar (7) inner chamber bottom surface are identical at a distance from rotary sleeve (3) top surface.