Corrosion-resistant polyethylene-coated sucker rod

Abstract

The utility model relates to the technical field of corrosion resistance of sucker rods, and discloses a corrosion-resistant polyethylene-coated sucker rod which comprises a sucker rod body, a connector is fixedly connected to the right end of the sucker rod body, a movable ring is connected to the outer wall of the sucker rod body in a sliding mode, and a cleaning assembly is arranged on the upper surface of the movable ring. According to the corrosion-resistant polyethylene-coated sucker rod, material distribution treatment is conducted through the material guide groove, the shell-shaped appearance, formed on the outer wall of the sucker rod, of a wax block is destroyed, the cleaning effect on the sucker rod is achieved under the action of the gravity of the wax block and the thrust of a triangular frame, and in the rotating process of the discharging roller, a magnetic sheet jacks a magnetic plate under the action of magnetic force; and after the wax block is ejected out by the ejection block, the wax block is ejected in a reciprocating manner in the circular cavity under the action of the magnetic sheet, so that the ejection block is endowed with the shaking property when the wax block is ejected out, and the cleaning effect of the surface of the sucker rod is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of corrosion resistance of pumping rods, in particular to a corrosion-resistant polyethylene coated pumping rod. Background Art

[0002] The sucker rod is one of the key components of the pumping well. It plays the role of transmitting power and connects the bare rod and the pump of the pumping unit. In oil production, the sucker rod plays a vital role, and its quality and performance have a direct impact on the output and stability of the oil well.

[0003] For example, a Chinese patent with patent publication number CN214944167U discloses a corrosion-resistant polyethylene coated sucker rod, which effectively removes wax accumulated on the outer surface of the coating through a first blade and a second blade, solving the problem that existing devices cannot effectively remove wax accumulated on the outer surface of the coating.

[0004] However, in actual use of the above-mentioned equipment, since the angle between the blade set in the covering and the sucker rod is fixed, when the wax block attached to the sucker rod is too large, the wax block will hinder the cutting action of the blade, resulting in the sucker rod being unable to be cleaned. The wax block will still be attached to the sucker rod after the blade acts, reducing the cleaning effect of the device on the sucker rod. In view of this, we propose a corrosion-resistant polyethylene coated sucker rod. Summary of the invention

[0005] The utility model aims to provide a corrosion-resistant polyethylene coated sucker rod to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a corrosion-resistant polyethylene coated sucker rod, comprising a sucker rod, the right end of the sucker rod is fixedly connected to a joint, the outer wall of the sucker rod is slidably connected to a movable ring, and a cleaning component is provided on the upper surface of the movable ring, and the cleaning component comprises:

[0007] The tripod, the top of the movable ring is fixedly connected to the tripod, the upper surface of the tripod is provided with a material guide groove, the top of the material guide groove is fixedly connected to the circular cavity, and the right end of the inner wall of the circular cavity is fixedly connected to the limiting groove;

[0008] The magnetic plate, the inner wall of the limiting groove is slidably connected to the magnetic plate, the top of the magnetic plate is fixedly connected to the elastic member, the top of the elastic member is fixedly connected to the top block, and the top of the front surface of the tripod is rotatably connected to the rotating shaft;

[0009] A discharge roller, the outer wall of the rotating shaft is fixedly connected to the discharge roller, the outer wall of the discharge roller is provided with a square groove, and the inner wall of the square groove is fixedly connected to the magnetic sheet.

[0010] Preferably, the magnetism of the magnetic sheet is opposite to that of the magnetic plate, thereby improving the cleaning effect of the cleaning component.

[0011] Preferably, the cross-sectional area of ​​the magnetic plate is matched with the cross-sectional area of ​​the circular cavity groove, thereby increasing the shedding rate of the wax block.

[0012] Preferably, the central axis of the magnetic plate in the horizontal direction, the central axis of the elastic member in the horizontal direction, and the central axis of the top block in the horizontal direction are located on the same straight line, thereby improving the stability of the top block.

[0013] Preferably, a scraper is fixedly installed between adjacent tripods on the upper surface of the movable ring, and a plurality of groups of evenly distributed chip removal grooves are provided on the upper surface of the scraper, thereby improving the chip removal function of the scraper.

[0014] Preferably, four groups of scrapers and tripods are provided, and each group of scrapers and tripods is distributed around the axis of the movable ring in a circular array with the axis of the movable ring as a reference point, thereby improving the stability of the movable ring.

[0015] Compared with the prior art, the utility model provides a corrosion-resistant polyethylene coated sucker rod, which has the following beneficial effects:

[0016] 1. In order to improve the corrosion resistance of the sucker rod, the corrosion-resistant polyethylene coated sucker rod is divided into materials through a material guide trough to destroy the shell-like shape formed by the wax block on the outer wall of the sucker rod, so that the wax block is transferred to the outer wall surface of the discharge roller. Under the action of the wax block gravity and the thrust of the tripod, the discharge roller rotates to clean the sucker rod, thereby improving the cleanliness of the sucker rod. During the rotation of the discharge roller, the magnetic sheet pushes the magnetic plate under the action of magnetic force, so that the wax block in the material guide trough is pushed up, thereby increasing the wax block shedding rate. After the ejection block ejects the wax block, it reciprocates in the circular cavity under the action of the magnetic sheet, giving the ejection block a shaking property, thereby further enhancing the cleaning effect of the sucker rod surface.

[0017] 2. In order to improve the cleanliness of the device, the corrosion-resistant polyethylene coated sucker rod further separates the wax blocks discharged from the discharge roller through the scraper during the movement in the movable ring, so that the wax blocks are finally discharged from the outside of the scraper to avoid the wax blocks from falling onto the surface of the cleaning component again. The chip groove is set to avoid the phenomenon that a large amount of wax blocks adhere to the scraper, causing the scraper to be blocked and the movable ring to be difficult to move, thereby enhancing the cleaning effect of the scraper on the sucker rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the main structure of the utility model;

[0019] Figure 2This is a schematic diagram of the active ring area of ​​the utility model structure;

[0020] Figure 3 This is a schematic diagram of the tripod area of ​​the utility model structure;

[0021] Figure 4 This is a cross-sectional schematic diagram of the tripod structure of the utility model;

[0022] Figure 5 For this utility model Figure 4 A magnified schematic diagram of part A in FIG.

[0023] In the figure: 1. sucker rod; 2. movable ring; 21. scraper; 22. chip groove; 3. cleaning component; 31. tripod; 32. guide groove; 33. rotating shaft; 34. discharge roller; 341. square groove; 342. magnetic sheet; 35. round cavity; 351. magnetic plate; 352. elastic part; 353. top block; 354. limit groove; 4. joint. DETAILED DESCRIPTION

[0024] like Figure 1 - Figure 5 As shown, the utility model provides a technical solution: a corrosion-resistant polyethylene coated sucker rod, comprising a sucker rod 1, a joint 4 fixedly connected to the right end of the sucker rod 1, a movable ring 2 slidably connected to the outer wall of the sucker rod 1, a cleaning component 3 is arranged on the upper surface of the movable ring 2, the cleaning component 3 comprises a tripod 31 fixedly connected to the top of the movable ring 2, a material guide groove 32 is opened on the upper surface of the tripod 31, a circular cavity 35 is fixedly connected to the top of the material guide groove 32, a limiting groove 354 is fixedly connected to the right end of the inner wall of the circular cavity 35, a magnetic plate 351 is slidably connected to the inner wall of the limiting groove 354, the top of the magnetic plate 351 is fixedly connected to the elastic member 352, the top of the elastic member 352 is fixedly connected to the top block 353, the top of the positive surface of the tripod 31 is rotatably connected to the rotating shaft 33, the outer wall of the rotating shaft 33 is fixedly connected to the discharge roller 34, the outer wall of the discharge roller 34 is opened with a square groove 341, and the inner wall of the square groove 341 is fixedly connected to the magnetic sheet 342.

[0025] In one embodiment of the present invention, when a large number of wax blocks are attached to the outer wall of the sucker rod 1 due to the influence of the surrounding environment, in order to improve the corrosion resistance of the sucker rod 1, the staff pulls the movable ring 2 to make the movable ring 2 move to the joint 4 on the other side of the sucker rod 1. During the movement of the movable ring 2, the cleaning component 3 starts to work. Through the inclined surface setting of the tripod 31, the tripod 31 is used to separate the wax blocks at the groove of the outer wall of the sucker rod 1 through the guide groove 32 under the action of the thrust, and the shell-like shape formed by the wax blocks on the outer wall of the sucker rod 1 is destroyed. The wax blocks after the crust is destroyed are guided through the guide groove 32, so that the wax blocks are transferred to the outer wall surface of the discharge roller 34. Under the action of the gravity of the wax blocks and the thrust of the tripod 31, the discharge roller 34 rotates to discharge the wax blocks, thereby achieving the cleaning effect on the sucker rod 1, avoiding the wax blocks from adhering to the outer wall of the sucker rod 1 for a long time and causing corrosion, thereby improving the cleanliness of the sucker rod 1. During the rotation, the magnetic sheet 342 rotates to the lower side of the circular cavity 35. The magnetism of the magnetic sheet 342 is opposite to that of the magnetic plate 351. Under the action of the magnetic force, the magnetic sheet 342 pushes the magnetic plate 351 to make the magnetic plate 351 move outward. The horizontal center axis of the magnetic plate 351, the horizontal center axis of the elastic member 352, and the horizontal center axis of the top block 353 are located on the same straight line, which improves the stability of the top block 353. The magnetic plate 351 cooperates with the elastic member 352 to make the top block 353 ejected in the circular cavity 35. The cross-sectional area of ​​the magnetic plate 351 and the cross-sectional area of ​​the groove of the circular cavity 35 are adapted to each other, so that the wax block in the guide trough 32 is ejected, the wax block shedding rate is increased, and the cleaning effect of the cleaning component 3 is improved. After the top block 353 ejects the wax block, it performs a reciprocating pushing action in the circular cavity 35 under the action of the magnetic sheet 342, which gives the top block 353 a jitter property when ejecting the wax block, further enhancing the cleaning effect of the surface of the sucker rod 1.

[0026] In addition, in order to improve the cleanliness of the device, a scraper 21 is fixedly installed between adjacent tripods 31 on the upper surface of the movable ring 2, and a plurality of evenly distributed chip grooves 22 are provided on the upper surface of the scraper 21. During the movement of the movable ring 2, the scraper 21 further separates the wax blocks discharged from the discharge roller 34, so that the wax blocks are finally discharged from the outside of the scraper 21, thereby preventing the wax blocks from falling onto the surface of the cleaning component 3 again. Four groups of scrapers 21 and tripods 31 are arranged, and each group of scrapers 21 and tripods 31 is distributed in a circular array around the axis of the movable ring 2 with the axis of the movable ring 2 as the reference point, thereby improving the stability of the movable ring 2. Through the arrangement of the chip grooves 22, it is avoided that a large amount of wax blocks adhere to the scraper 21, which causes the movable ring 2 to be difficult to move after the scraper 21 is blocked, thereby enhancing the cleaning effect of the scraper 21 on the sucker rod 1.

[0027] In the utility model, when in use, the staff pulls the movable ring 2 to make the movable ring 2 move to the joint 4 on the other side of the sucker rod 1. During the movement of the movable ring 2, the cleaning component 3 starts to work. Through the inclined surface setting of the tripod 31, the tripod 31 is used to separate the wax blocks at the groove of the outer wall of the sucker rod 1 through the guide groove 32 under the action of the thrust, and the shell-like shape formed by the wax blocks on the outer wall of the sucker rod 1 is destroyed. The wax blocks after the crust is destroyed are guided through the guide groove 32, so that the wax blocks are transferred to the outer wall surface of the discharge roller 34. Under the action of the gravity of the wax blocks and the thrust of the tripod 31, the discharge roller 34 rotates to discharge the wax blocks, thereby achieving the cleaning effect on the sucker rod 1. During the rotation of the discharge roller 34, the magnetic sheet 342 rotates to the lower side of the circular cavity 35. Under the action of the magnetic force, the magnetic sheet 3 42 acts on the magnetic plate 351 to push it outward, and the magnetic plate 351 cooperates with the elastic member 352 to push the top block 353 out of the circular cavity 35, so that the wax block in the guide groove 32 is pushed up. After the top block 353 pushes out the wax block, it performs a reciprocating pushing action in the circular cavity 35 under the action of the magnetic piece 342, giving the top block 353 a shaking property when pushing out the wax block. During the movement in the movable ring 2, the scraper 21 is used to further separate the wax block discharged from the discharge roller 34, so that the wax block is finally discharged from the outside of the scraper 21, so as to avoid the wax block after being discharged from falling onto the surface of the cleaning component 3 again. By setting the chip discharge groove 22, it is avoided that a large amount of wax blocks adhere to the scraper 21, causing the scraper 21 to be blocked and the movable ring 2 is difficult to move, thereby enhancing the cleaning effect of the scraper 21 on the sucker rod 1.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A corrosion-resistant polyethylene coated sucker rod, comprising a sucker rod (1), the right end of the sucker rod (1) being fixedly connected to a joint (4), the outer wall of the sucker rod (1) being slidably connected to a movable ring (2), characterized in that: A cleaning component (3) is provided on the upper surface of the movable ring (2), and the cleaning component (3) comprises: A tripod (31), the top of the movable ring (2) is fixedly connected to the tripod (31), a material guide groove (32) is provided on the upper surface of the tripod (31), the top of the material guide groove (32) is fixedly connected to the circular cavity (35), and the right end of the inner wall of the circular cavity (35) is fixedly connected to the limiting groove (354); The magnetic plate (351) is slidably connected to the inner wall of the limiting groove (354), the top of the magnetic plate (351) is fixedly connected to the elastic member (352), the top of the elastic member (352) is fixedly connected to the top block (353), and the top of the front surface of the tripod (31) is rotatably connected to the rotating shaft (33); A discharge roller (34), wherein the outer wall of the rotating shaft (33) is fixedly connected to the discharge roller (34), a square groove (341) is formed on the outer wall of the discharge roller (34), and the inner wall of the square groove (341) is fixedly connected to a magnetic sheet (342).

2. The corrosion-resistant polyethylene coated sucker rod according to claim 1, characterized in that: The magnetism of the magnetic sheet (342) is opposite to the magnetism of the magnetic plate (351).

3. The corrosion-resistant polyethylene coated sucker rod according to claim 1, characterized in that: The cross-sectional area of ​​the magnetic plate (351) and the cross-sectional area of ​​the groove of the circular cavity (35) are mutually adapted.

4. The corrosion-resistant polyethylene coated sucker rod according to claim 1, characterized in that: The central axis of the magnetic plate (351) in the horizontal direction, the central axis of the elastic member (352) in the horizontal direction, and the central axis of the top block (353) in the horizontal direction are located on the same straight line.

5. The corrosion-resistant polyethylene coated sucker rod according to claim 1, characterized in that: A scraper (21) is fixedly mounted on the upper surface of the movable ring (2) near adjacent tripods (31), and a plurality of groups of evenly distributed chip removal grooves (22) are provided on the upper surface of the scraper (21).

6. The corrosion-resistant polyethylene coated sucker rod according to claim 5, characterized in that: Four groups of scrapers (21) and tripods (31) are provided, and each group of scrapers (21) and tripods (31) is distributed around the axis of the movable ring (2) in a circular array with the axis of the movable ring (2) as a reference point.

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