CN111608595B

CN111608595B - Continuous wear-resistant carbon fiber sucker rod

Info

Publication number: CN111608595B
Application number: CN202010393870.5A
Authority: CN
Inventors: 秦立梅
Original assignee: Daqing Danfeng Petroleum Technology Development Co ltd
Current assignee: Daqing Danfeng Petroleum Technology Development Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2024-08-30
Anticipated expiration: 2040-05-11
Also published as: CN111608595A

Abstract

The invention relates to the technical field of sucker rods, in particular to a continuous wear-resistant carbon fiber sucker rod, which comprises a male head and a female head of the carbon fiber sucker rod, wherein one end of the female head opposite to the male head is coaxially provided with a bulge, the diameter of the bulge is gradually decreased from inside to outside along the axial direction of the female head, the corresponding male head is provided with a conical groove which is matched with the appearance of the bulge and is used for the sliding fit and clamping of the bulge, the female head is connected with the male head through a fastener, the axial end face of the male head, facing the female head, is provided with a plurality of clamping blocks which extend towards the axial outer side of the male head, and the corresponding female head is provided with clamping grooves for clamping the clamping blocks. The invention has the beneficial effects that: set up the taper fit in bulge and cone groove for public head and female head have better axiality, guarantee public head and female head installation back, holistic sucker rod has better straightness accuracy, has improved the life of sucker rod, has promoted pumping efficiency simultaneously to at least a certain extent.

Description

Continuous wear-resistant carbon fiber sucker rod

Technical Field

The invention relates to the technical field of sucker rods, in particular to a continuous wear-resistant carbon fiber sucker rod.

Background

The sucker rod of the existing petroleum extraction equipment is formed by connecting a plurality of sections of steel straight rods through thicker threaded joints, the depth of one oil well is generally 2000-3000 m, more than 300 sucker rods are usually used, and most of the sucker rods are solid rods. When the oil extraction industry performs oil extraction operation, carbon fiber sucker rods with better strength and corrosion resistance are generally applied. The manufacturing process of the sucker rod is relatively simple, and the requirement of oil extraction can be basically met. Coaxiality among the multiple sections of sucker rods easily influences the operation efficiency and the service life of the sucker rods.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provides a continuous wear-resistant carbon fiber sucker rod, which can solve the problems in the prior art to at least a certain extent.

In order to achieve the technical purpose and the technical effect, the invention is realized by the following technical scheme:

The utility model provides a wear-resisting carbon fiber sucker rod of continuous type, includes public head and the female head of carbon fiber sucker rod, the coaxial bulge that is equipped with in the one end of the relative public head of female head, bulge diameter is from interior to outside progressively decrease in proper order along the axial of female head, corresponds offer on the public head with bulge appearance adaptation, and supply bulge smooth awl groove of joining in marriage the block, female head is connected through the fastener with the public head, be equipped with a plurality of fixture blocks that extend to its axial outside on the axle terminal surface of public head towards female head, correspond offer the draw-in groove that supplies the fixture block to block on the female head.

As a further optimization of the technical solution described above, the maximum diameter of the projection is not smaller than the radius of the female head.

As a further optimization of the technical scheme, a plurality of clamping blocks are arranged in an array along the axial direction of the male.

As further optimization of the technical scheme, the fastening piece is a screw, the female head is provided with a through groove for the screw to freely pass through, and the corresponding male head is provided with a threaded hole for screwing the screw.

As a further refinement of the solution described above, the screw axis is coaxial with the female head.

As a further optimization of the technical scheme, the set screw is threaded on the peripheral surface of the female head, and one end of the set screw penetrating into the female head is abutted against the screw.

The invention has the beneficial effects that: set up the taper fit in bulge and cone groove for public head and female head have better axiality, guarantee public head and female head installation back, holistic sucker rod has better straightness accuracy, has improved the life of sucker rod, has promoted pumping efficiency to a certain extent at least simultaneously, sets up the block of a plurality of fixture blocks and draw-in groove, makes public head and female head junction have better torsional properties, prevents that the sucker rod from producing torsion phenomenon in the pit, leads to the inefficacy to the sucker rod.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the three-dimensional structure of FIG. 1;

FIG. 3 is an exploded view of the three-dimensional structure of FIG. 1 at another angle;

FIG. 4 is a schematic elevation view of the three-dimensional structure of FIG. 1;

Wherein the reference numerals are as follows:

1-male head, 2-fixture block, 3-set screw, 4-draw-in groove, 5-logical groove, 6-female head, 7-bulge, 8-screw, 9-awl groove.

Detailed Description

In order to make the technical means, the creation features, the achievement of the purposes and the effects achieved by the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-4, fig. 1-4 show a continuous wear-resistant carbon fiber sucker rod, including public head 1 and female head 6 of carbon fiber sucker rod, be equipped with a bulge 7 on the one end of female head 6 relative public head 1 coaxially, bulge 7 diameter decreases gradually from inside to outside along the axial of female head 6, corresponding offer on public head 1 with bulge 7 appearance adaptation and supply bulge 7 smooth fit's awl groove 9, bulge 7 maximum diameter is not less than the radius of female head 6, improves bulge 7's whole rigidity, female head 6 passes through the fastener with public head 1 and is connected, specifically, the fastener is screw 8, be equipped with the through groove 5 that supplies screw 8 free passage on female head 6, corresponding screw 8 is coaxial with female head 6, improve public head 1 and female head 6's connection stability, female head 6 is equipped with on the global setting screw 3, the setting screw 3 is equipped with on the face of female head 6 and is equipped with the fixture block 3 and is equipped with the fixture block that the fixture block is difficult for the one end face is equipped with to the fixture block 2 on the axial direction of the female head 1, and the fixture block 2 is equipped with more than the fixture block that the setting up end face is equipped with on the axial direction of the female head 1 is difficult for the fixture block 2.

The invention is used when in use: the convex part is inserted in the conical groove, the clamping blocks are correspondingly clamped in the clamping grooves respectively, the male head abuts against the end face of the female head, the screw is rotated, one end of the screw penetrating out of the convex part is screwed in the threaded hole, the convex part is clamped in the clamping groove through screwing, meanwhile, the male head is connected with the female head, the connection of the male head and the female head is completed, the operation is repeated, and the other male heads and the female heads of the sucker rod are connected, so that the installation of the sucker rod is completed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a continuous wear-resisting carbon fiber sucker rod, its characterized in that includes public head (1) and female head (6) of carbon fiber sucker rod, be equipped with a bulge (7) on the one end of female head (6) relative public head (1) coaxial, bulge (7) diameter is from interior to the outside progressively decrease in proper order along the axial of female head (6), corresponding public head (1) is last to be offered with bulge (7) appearance adaptation and supply bulge (7) smooth awl groove (9) of joining in marriage the block, female head (6) are connected through the fastener with public head (1), be equipped with a plurality of fixture blocks (2) to its axial outside extension on the axial terminal surface of female head (6) public head (1), corresponding female head (6) are last to be offered and to supply fixture block (2) block's draw-in groove (4), bulge (7) maximum diameter is not less than the radius of female head (6), the fastener is screw (8) on female head (6) are equipped with supply female head (8) appearance adaptation and supply, the screw (8) on the female head (6) are equipped with through the axial thread (8) of screw (8) on the axial face of the female head (6) is equipped with screw (8), one end of the set screw (3) penetrating into the female head (6) is abutted against the screw (8).

2. A continuous wear resistant carbon fibre sucker rod according to claim 1, wherein a plurality of the clamping blocks (2) are arranged in an axial array along the male (1).