CN217270047U

CN217270047U - Coated wear-resistant corrosion-resistant sucker rod

Info

Publication number: CN217270047U
Application number: CN202022942046.9U
Authority: CN
Inventors: 李彦平; 杨聪; 马志海; 赵博; 李星波
Original assignee: Shaanxi Gaoyuan Jirui Machinery Equipment Co ltd
Current assignee: Shaanxi Gaoyuan Jirui Machinery Equipment Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2022-08-23
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a cladding type anti-corrosion sucker rod that wear-resistants, including the sucker rod main part, the both ends difference fixedly connected with female adapter and the outer screwed joint of sucker rod main part, a plurality of support rings of fixedly connected with are established to the surface cover of sucker rod main part, the surface ring shape of support ring is equipped with a plurality of first screw holes, the inside of first screw hole is run through and is had the first screw rod of connecting through the screw rotation, the surface cover of support ring is equipped with outer wear ring. The utility model discloses in, can reduce the friction between outer wear ring and the oil pipe inner wall greatly through wear-resisting steel ball to reduce the condition of sucker rod main part wearing and tearing when the sucker rod uses, can play certain buffering effect to the sucker rod main part through the spring, thereby can avoid the sucker rod to receive the impact and cause the condition of crooked inefficacy at the during operation, the rubber layer can carry out the anticorrosion protection to the sucker rod main part, thereby avoids the sucker rod main part to receive the condition of corruption.

Description

Coated wear-resistant corrosion-resistant sucker rod

Technical Field

The utility model relates to a sucker rod technical field especially relates to cladding type anti-corrosion sucker rod that wear-resistants.

Background

The sucker rod is a slender rod piece of an oil pumping well, the sucker rod is connected with a polished rod at the upper part and connected with an oil pump at the lower part to play a role of transmitting power, the length of a single sucker rod is 7.62 or 8 meters and 9.14 meters, the material is generally low-carbon alloy steel, the materials are connected by internal threads in an oil pipe in a hooping mode and extend to a piston at an underground oil layer, oil is pumped through reciprocating motion, the length of the current oil well is generally about two kilometers, the oil well is favored by the example of a Shengli oil field, and the deepest oil well is more than three kilometers;

when present sucker rod in the existing market used, contained relative contact motion between sucker rod and the oil pipe, certain friction can appear with oil pipe in the sucker rod, therefore the condition that leads to sucker rod wearing and tearing easily appears, and can produce certain impact force when the sucker rod carries out the during operation to cause the sucker rod crooked, greatly reduced the life of sucker rod.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coated wear-resistant and corrosion-resistant sucker rod.

2. In order to achieve the above purpose, the utility model adopts the following technical scheme: the coated anti-wear and anti-corrosion sucker rod comprises a sucker rod main body, wherein the two ends of the sucker rod main body are respectively and fixedly connected with an internal thread joint and an external thread joint, the outer surface of the sucker rod main body is sleeved with a plurality of support rings, the outer surface of each support ring is annularly provided with a plurality of first threaded holes, first screw rods which are connected in a threaded rotating manner penetrate through the inner parts of the first threaded holes, the outer surface of each support ring is sleeved with an outer wear-resisting ring, the inner wall of each outer wear-resisting ring is provided with a plurality of second threaded holes corresponding to the first threaded holes, second screw rods which are connected in a threaded rotating manner penetrate through the inner parts of the second threaded holes, springs are fixedly connected between the first screw rods and the corresponding second screw rods, the outer surface of each outer wear-resisting ring is annularly provided with a plurality of mounting holes, and wear-resistant steel balls are embedded in the mounting holes, the wear-resistant steel balls extend to the outer portion of the outer wear-resistant ring.

The outer wear-resisting ring comprises two first semi-rings which are symmetrical to each other, connecting grooves are formed in the positions, contacted with the outer surfaces of the first semi-rings, of the two first semi-rings respectively, and connecting plates are arranged between the two corresponding connecting grooves.

The outer surface cover of the both ends of support ring is established and is rotated and be connected with the spacing ring, the spacing ring includes two relative symmetry's second semi-rings, the surface through connection at second semi-ring both ends has the second screw.

As a further description of the above technical solution:

and two ends of the connecting plate are both in through connection with first screws, and one ends of the first screws penetrate through the connecting plate and are connected with the inside of the first semi-ring through threads.

As a further description of the above technical solution:

one end of the second screw is connected with the inside of the other second half ring through threads.

As a further description of the above technical solution:

the outer surface of the sucker rod main body is evenly coated with a rubber layer.

As a further description of the above technical solution:

the outer diameter of the limiting ring is slightly smaller than that of the outer wear-resisting ring.

As a further description of the above technical solution:

the outer diameter of the outer wear-resisting ring is slightly larger than the outer diameters of the internal thread joint and the external thread joint.

The utility model discloses following beneficial effect has:

this cladding type anti-wear corrosion-resistant sucker rod, support ring through setting up, outer wear ring, a spring, wear-resistant steel ball and rubber layer, can reduce the friction between outer wear ring and the oil pipe inner wall greatly through wear-resistant steel ball, thereby reduce the condition of sucker rod main part wearing and tearing when the sucker rod uses, can play certain buffering effect to the sucker rod main part through the spring, thereby can avoid the sucker rod to receive the condition that strikes and cause the bending failure at the during operation, thereby greatly increased the life of sucker rod, the rubber layer can carry out the anticorrosion protection to the sucker rod main part, thereby avoid the sucker rod main part to receive the circumstances of corruption.

Drawings

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

fig. 2 is a schematic view of a connection structure of the support ring and the outer wear ring of the present invention;

figure 3 is a side view of the outer wear ring of the present invention;

fig. 4 is a side view of the stop collar of the present invention.

Illustration of the drawings:

1. a sucker rod main body; 2. an internal thread joint; 3. an externally threaded nipple; 4. a support ring; 5. a first threaded hole; 6. a first screw; 7. an outer wear ring; 8. a second threaded hole; 9. a second screw; 10. a spring; 11. mounting holes; 12. wear-resistant steel balls; 13. a first half ring; 14. connecting grooves; 15. a connecting plate; 16. a first screw; 17. a limiting ring; 18. a second half ring; 19. a second screw; 20. a rubber layer.

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 efforts all belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: the coated wear-resistant corrosion-resistant sucker rod comprises a sucker rod body 1, wherein the two ends of the sucker rod body 1 are respectively and fixedly connected with an internal thread joint 2 and an external thread joint 3, the outer surface of the sucker rod body 1 is sleeved with a plurality of support rings 4, the outer surface of each support ring 4 is annularly provided with a plurality of first threaded holes 5, a first screw rod 6 which is rotatably connected through threads penetrates through the inside of each first threaded hole 5, an outer wear-resistant ring 7 is sleeved on the outer surface of each support ring 4, the inner wall of each outer wear-resistant ring 7 is provided with a plurality of second threaded holes 8 corresponding to the first threaded holes 5, a second screw rod 9 which is rotatably connected through threads penetrates through the inside of each second threaded hole 8, a spring 10 is fixedly connected between each first screw rod 6 and the corresponding second screw rod 9, the outer surface of each outer wear-resistant ring 7 is annularly provided with a plurality of mounting holes 11, and wear-resistant steel balls 12 are embedded in the mounting holes 11, the wear-resistant steel balls 12 extend to the outside of the outer wear-resistant ring 7.

The outer wear-resisting ring 7 comprises two first half rings 13 which are symmetrical to each other, connecting grooves 14 are respectively formed in the positions where the outer surfaces of the two first half rings 13 are in contact with each other, and a connecting plate 15 is arranged between the two corresponding connecting grooves 14.

The outer surface cover at the both ends of support ring 4 is established and is rotated and be connected with spacing ring 17, and spacing ring 17 includes the second semi-ring 18 of two relative symmetries, and the surface through connection at the second semi-ring 18 both ends has second screw 19.

Two ends of the connecting plate 15 are both connected with first screws 16 in a penetrating manner, one ends of the first screws 16 penetrate through the connecting plate 15 and are connected with the interior of the first half ring 13 through threads, and the first screws 16 are connected to facilitate mounting and dismounting of the connecting plate 15, and further facilitate mounting and dismounting of the outer wear-resisting ring 7; one end of the second screw 19 is connected with the inner part of the other second half ring 18 through threads, and the second screw 19 is convenient for the installation and the disassembly of the limit ring 17; the rubber layer 20 is uniformly coated on the outer surface of the sucker rod body 1, and the rubber layer 20 can be used for carrying out anti-corrosion protection on the sucker rod body 1, so that the sucker rod body 1 is prevented from being corroded; the outer diameter of the limiting ring 17 is slightly smaller than that of the outer wear-resisting ring 7, so that the limiting ring 17 can limit the outer wear-resisting ring 7, and the outer wear-resisting ring 7 is prevented from inclining; the outer diameter of the outer wear-resistant ring 7 is slightly larger than the outer diameters of the female adapter 2 and the male adapter 3, so that the female adapter 2 and the male adapter 3 do not contact with the inner wall of the oil pipe when the outer wear-resistant ring 7 contacts with the inner wall of the oil pipe.

The working principle is as follows: when using cladding type wear-resistant corrosion-resistant sucker rod, can make the contact mode between outer wear ring 7 and the oil pipe inner wall become rolling contact from sliding contact through wear-resistant steel ball 12, thereby the friction between outer wear ring 7 and the oil pipe inner wall has been reduced greatly, and thereby the condition that sucker rod main part 1 weared and torn when reducing the sucker rod use, can play certain buffering effect to sucker rod main part 1 through spring 10, thereby can avoid the sucker rod to receive the condition that the impact caused the bending failure at the during operation, thereby greatly increased the life of sucker rod, rubber layer 20 can carry out the anticorrosion protection to sucker rod main part 1, thereby avoid sucker rod main part 1 to receive the condition of corruption, there is certain practicality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Cladding type anti-wear and corrosion-resistant sucker rod, including sucker rod main part (1), its characterized in that: the improved sucker rod comprises a sucker rod body (1), wherein the two ends of the sucker rod body (1) are respectively fixedly connected with an internal thread joint (2) and an external thread joint (3), a plurality of support rings (4) are fixedly connected to the outer surface of the sucker rod body (1) in a sleeved mode, a plurality of first threaded holes (5) are annularly formed in the outer surface of each support ring (4), a first screw (6) which is connected through threaded rotation penetrates through the inner portion of each first threaded hole (5), an outer wear-resisting ring (7) is sleeved on the outer surface of each support ring (4), a plurality of second threaded holes (8) corresponding to the first threaded holes (5) are formed in the inner wall of each outer wear-resisting ring (7), a second screw (9) which is connected through threaded rotation penetrates through the inner portion of each second threaded hole (8), and a spring (10) is fixedly connected between each first screw (6) and the corresponding second screw (9), a plurality of mounting holes (11) are annularly formed in the outer surface of the outer wear-resistant ring (7), wear-resistant steel balls (12) are embedded into the mounting holes (11), and the wear-resistant steel balls (12) extend to the outer portion of the outer wear-resistant ring (7);

the outer wear-resisting ring (7) comprises two first half rings (13) which are symmetrical to each other, connecting grooves (14) are formed in the positions where the outer surfaces of the two first half rings (13) are in contact with each other, and a connecting plate (15) is arranged between the two corresponding connecting grooves (14);

the outer surface sleeves of the two ends of the support ring (4) are rotatably connected with a limiting ring (17), the limiting ring (17) comprises two second half rings (18) which are symmetrical relatively, and the outer surfaces of the two ends of each second half ring (18) are connected with second screws (19) in a penetrating mode.

2. The coated abrasion and corrosion resistant sucker rod of claim 1 wherein: two ends of the connecting plate (15) are both connected with first screws (16) in a penetrating mode, and one ends of the first screws (16) penetrate through the connecting plate (15) and are connected with the inside of the first half ring (13) through threads.

3. The coated abrasion and corrosion resistant sucker rod of claim 1 wherein: one end of the second screw (19) is connected with the inner part of the other second half ring (18) through threads.

4. The coated wear and corrosion resistant sucker rod of claim 1 wherein: the outer surface of the sucker rod main body (1) is evenly coated with a rubber layer (20).

5. The coated abrasion and corrosion resistant sucker rod of claim 1 wherein: the outer diameter of the limiting ring (17) is slightly smaller than that of the outer wear-resistant ring (7).

6. The coated abrasion and corrosion resistant sucker rod of claim 1 wherein: the outer diameter of the outer wear-resistant ring (7) is slightly larger than the outer diameters of the internal thread joint (2) and the external thread joint (3).