CN213510490U

CN213510490U - Sucker rod guider with positioning eccentric wear prevention mechanism

Info

Publication number: CN213510490U
Application number: CN202022532671.6U
Authority: CN
Inventors: 王峰; 徐淳; 张立坪
Original assignee: Beijing Sairuihongye Energy Technology Service Co ltd
Current assignee: Beijing Sairuihongye Energy Technology Service Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-22
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to the technical field of oil extraction in oil fields, in particular to a sucker rod guider with a positioning anti-eccentric wear mechanism, which comprises an external thread buckle changer, a connecting cylinder, an anti-friction casing and an internal thread buckle changer, wherein the left end and the right end of the connecting cylinder are both rotationally connected with a ball shaft, the outer side of the ball shaft at the left side is detachably connected with the external thread buckle changer, the outer side of the right end of the ball shaft at the right side is detachably connected with the internal thread buckle changer, the top ends of the external thread buckle changer and the internal thread buckle changer are both fixedly connected with a stopper, the inner side of the stopper is provided with a cylindrical pin, the inner side of the top end of the ball shaft is slidably connected with an extrusion block, the left end of the connecting cylinder is provided with a baffle sleeve, the installation process of the cylindrical pin can not generate the condition of deviation through the, the guide effect of the guider on the sucker rod is realized.

Description

Sucker rod guider with positioning eccentric wear prevention mechanism

Technical Field

The utility model relates to an oil field oil recovery technical field specifically is a sucker rod director with location eccentric wear mechanism of preventing.

Background

The sucker rod guider is also called a coupler, is an underground tool for relieving the eccentric wear of a sucker rod and an oil pipe inside the oil pipe, is used for directional wells, horizontal wells and well conditions with larger dog leg degrees, is used in series with the sucker rod, is arranged at a deflecting point at a fixed point, can lead the sucker rod to a horizontal section, mainly plays a role in guiding in a pipe column, effectively lightens the eccentric wear of the rod and the pipe, increases the pump hanging depth, improves the crude oil yield, is used for an oil pumping machine well and a screw pump well, can prolong the pump checking period, reduces the current of a pump and prolongs the service life of the sucker rod.

Present sucker rod director on the market is in the use, because the underground environment topography of difference is different, and the torsion angle also diverse of director, long-time, frequent emergence angular migration can lead to collapsing of director, moreover in long-time use, the friction can have very big damage to director itself, very big reduction the life-span during the use of director.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sucker rod director with location eccentric wear mechanism of preventing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a sucker rod director with location anti-eccentric wear mechanism, includes external screw thread change lock joint, connecting cylinder, antifriction cover shell and internal thread change lock joint, the connecting cylinder left end all rotates with the right-hand member inboard and is connected with the ball axle, is located left the ball axle outside can be dismantled and be connected with external screw thread change lock joint, is located the right side the ball axle right-hand member outside can be dismantled and be connected with the internal thread change lock joint, external screw thread change lock joint and the equal fixedly connected with stopper in internal thread change lock joint top, the stopper inboard is provided with the cylindric lock, the inboard sliding connection in ball axle top has the extrusion piece, the connecting cylinder left end is provided with the spacer sleeve, the spacer sleeve right-hand member is provided.

Preferably, the left end of the ball shaft on the left side and the right end of the ball shaft on the right side are both in threaded connection with cylindrical pins, and the inner sides of the external thread variable buckle joint and the internal thread variable buckle joint are both in threaded connection with the cylindrical pins.

Preferably, be located the left side the right-hand member of ball axle all rotates with the left end of the ball axle that is located the right side and is connected with the antifriction cover shell, antifriction cover shell quantity is two, is bilateral symmetry and distributes.

Preferably, one end of the extrusion block is fixedly connected with an extrusion spring, and the extrusion block is connected with the cylindrical pin in a sliding mode.

Preferably, the inboard fixedly connected with spring of antifriction cover shell is located the left the right-hand member of spring and the equal fixedly connected with spacing curved bar in the left end of the spring that is located the right side, spacing curved bar sliding connection is inboard in antifriction cover shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the extrusion piece, extrusion spring and the stopper that set up, play the guide effect through the stopper in the installation of cylindric lock, make the cylindric lock can not appear the condition of installation skew in the installation, the extrusion piece carries out spacing and fixed once more to the cylindric lock under the effect of extrusion spring, makes the cylindric lock also can not take place to collapse the circumstances such as fall because of rocking in the sucker rod director use, makes the sucker rod director more stable.

2. The utility model discloses in, through spacing curved bar, antifriction cover shell and the spring that sets up, can overlap the antifriction cover shell in the connecting block outside through spacing curved bar extrusion spring, to the sucker rod director friction reduction when taking place to twist reverse the influence to the sucker rod director, avoided because the friction is too big, lead to the sucker rod director motion to be puckery, can't provide accurate guide effect, realized the guide effect of director to the sucker rod.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is the utility model discloses an antifriction shell mounting structure schematic diagram.

In the figure: 1-external thread variable buckle joint, 2-ball shaft, 3-retaining sleeve, 4-connecting cylinder, 5-torque sleeve, 6-internal thread variable buckle joint, 7-cylindrical pin, 8-anti-friction sleeve shell, 9-limiting curved rod, 10-spring, 11-limiting block, 12-extrusion block and 13-extrusion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a sucker rod guider with a positioning eccentric wear prevention mechanism comprises an external thread buckle changing joint 1, a connecting cylinder 4, an anti-friction casing 8 and an internal thread buckle changing joint 6, wherein the inner sides of the left end and the right end of the connecting cylinder 4 are rotatably connected with a ball shaft 2, the sucker rod can be guided in oil fields with different geographical conditions by twisting the ball shaft 2, the outer side of the ball shaft 2 on the left side is detachably connected with the external thread buckle changing joint 1, the outer side of the right end of the ball shaft 2 on the right side is detachably connected with the internal thread buckle changing joint 6, the serial sucker rod can be operated in deeper parts of the oil field, the top ends of the external thread buckle changing joint 1 and the internal thread buckle changing joint 6 are fixedly connected with a limiting block 11, the inner side of the limiting block 11 is provided with a cylindrical pin 7, the inner side of the top end of the ball shaft 2 is slidably, carry out further compressing tightly fixedly to cylindric lock 7, 4 left ends of connecting cylinder are provided with

spacer

3, and 3 right-hand members of spacer are provided with moment of torsion cover 5.

The left end of the ball shaft 2 positioned on the left side and the right end of the ball shaft 2 positioned on the right side are both in threaded connection with a cylindrical pin 7, the inner sides of the external thread snap joint 1 and the internal thread snap joint 6 are both in threaded connection with the cylindrical pin 7, the fixing of the ball shaft 2 is more stable and the breaking phenomenon is avoided by virtue of the threaded connection of the cylindrical pin 7 with the internal thread snap joint 6 and the external thread snap joint 1, the right end of the ball shaft 2 positioned on the left side and the left end of the ball shaft 2 positioned on the right side are both rotatably connected with anti-friction casing 8, the anti-friction casing 8 is two in number and is distributed in bilateral symmetry, the damage to the ball shaft caused by friction generated in the twisting process of the ball shaft 2 is reduced by virtue of the anti-friction casing 8, one end of the extrusion block 12 is fixedly connected with an extrusion spring 13, the extrusion block 12 is in sliding connection with the cylindrical pin 7, after the cylindrical pin 7 is fixed, the extrusion block 12 further compresses and fixes the

cylindrical pin

7, 8 inboard fixedly connected with springs 10 of antifriction sleeve shell, the equal fixedly connected with spacing curved bar 9 in the left end of the right-hand member that is located left spring 10 and the spring 10 that is located the right side, and spacing curved bar 9 sliding connection is inboard in antifriction sleeve shell 8, and through pressing down spacing curved bar 9, spacing curved bar 9 extrusion spring 10 slides to antifriction sleeve shell 8 is inboard, can embolia the 2 outsides of not unidimensional ball axles with antifriction sleeve shell 8, protects the ball axle.

The working process is as follows: the cylindrical pin 7 is arranged in a groove formed in the external thread variable buckle joint 1, the limiting block 11 is used for guiding and limiting the installation process of the cylindrical pin 7, the cylindrical pin 7 is prevented from deviating, meanwhile, the extrusion spring 14 drives the extrusion spring 12 to extrude the cylindrical pin 7, the cylindrical pin 7 is further limited and clamped, the sucker rod guider cannot be broken, twisted and the like in use, the limiting curved rod 9 is pressed, the limiting curved rod 9 extrudes the spring 10 and moves towards the inner side of the antifriction casing 8, the antifriction casing 8 can be clamped into the outer side of the connecting block 13 at the moment, the loss of friction to the device in the use process of the sucker rod guider is reduced, the blocking sleeve 3 and the torque sleeve 5 are used for limiting the ball shaft 2, the ball shaft 2 is prevented from greatly deviating in the twisting process, the connecting cylinder 4 plays a limiting role in limiting the ball shaft 2, and the variable buckle joint 6 is connected with other sucker rod guiders, the guiding function of the guider to the sucker rod is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sucker rod director with location eccentric wear mechanism of preventing, includes external screw thread change lock joint (1), connecting cylinder (4), antifriction cover shell (8) and internal screw thread change lock joint (6), its characterized in that: connecting cylinder (4) left end all rotates with the right-hand member inboard and is connected with ball axle (2), is located the left ball axle (2) outside can be dismantled and be connected with external screw thread change buckle joint (1), is located the right side ball axle (2) right-hand member outside can be dismantled and be connected with internal thread change buckle joint (6), external screw thread change buckle joint (1) and the equal fixedly connected with stopper (11) in internal thread change buckle joint (6) top, stopper (11) inboard is provided with cylindric lock (7), ball axle (2) top inboard sliding connection has extrusion piece (12), connecting cylinder (4) left end is provided with spacer sleeve (3), spacer sleeve (3) right-hand member is provided with torque sleeve (5).

2. The sucker rod guide with a positioning anti-eccentric wear mechanism of claim 1, wherein: the left end of the ball shaft (2) located on the left side and the right end of the ball shaft (2) located on the right side are in threaded connection with a cylindrical pin (7), and the inner sides of the external thread variable buckle joint (1) and the internal thread variable buckle joint (6) are in threaded connection with the cylindrical pin (7).

3. The sucker rod guide with a positioning anti-eccentric wear mechanism of claim 1, wherein: be located the left the right-hand member of ball axle (2) all rotates with the left end of being located ball axle (2) on right side and is connected with antifriction cover shell (8), antifriction cover shell (8) quantity is two, is bilateral symmetry and distributes.

4. The sucker rod guide with a positioning anti-eccentric wear mechanism of claim 1, wherein: one end of the extrusion block (12) is fixedly connected with an extrusion spring (13), and the extrusion block (12) is connected with the cylindrical pin (7) in a sliding mode.

5. The sucker rod guide with a positioning anti-eccentric wear mechanism of claim 1, wherein: antifriction cover shell (8) inboard fixedly connected with spring (10), be located the left the right-hand member of spring (10) and the equal fixedly connected with spacing curved bar (9) in the left end of spring (10) that is located the right side, spacing curved bar (9) sliding connection is inboard in antifriction cover shell (8).